6ED1052-2CC01-0BA6 - SIEMENS

Manual Edition 06/2003

LOGO!

The following supplement is part of this documentation:

No. Designation Drawing number Edition

1 Product information A5E00324307-01 07/2004

Siemens AG

Bereich Automation and Drives

Geschäftsgebiet Industrial Automation Systems

Postfach 4848, D-90327 Nuernberg

Subject to change without prior notice

@1P6ED1050-1AA00-0BE5@

1P 6ED1050-1AA00-0BE5

6ED1050-1AA00-0BE5

www.siemens.com/logo/

4 019169 120982

LOGO! Manual

A5E00228550-01

Preface

Dear customer

We thank you for purchasing LOGO! and congratulate you on

your decision. With LOGO! you have acquired a logic module that

meets the stringent quality requirements of ISO 9001.

LOGO! can be used in many fields of applications. Due to its high

functionality and yet easy operation the LOGO! offers you highly

efficient economies for almost any application.

Purpose of this manual

This LOGO! manual provides you with information about the crea-

tion of circuit programs, about the installation and use of LOGO!

0BA4 devices and expansion modules, and about their compatibi-

lity to the previous 0BA0-0BA3 versions (0BAx are the last four

characters of the order number and differentiate the device se-

ries).

LOGO!’s place in information technology

The wiring information in your LOGO! manualis also found in the

LOGO! Product Info included with all devices. For further informa-

tion on programming the LOGO! on your PC, with the PC in the

Online Help for LOGO!Soft Comfort.

LOGO!Soft Comfort is the programming software for PCs. It runs

under Windows, Linux, Mac OS X and helps you to get star-

ted with LOGO! and to write, test, print out and archive your pro-

grams, independent of the LOGO! .

Guide We have divided this manual into 9 chapters:

Getting started with LOGO!

LOGO! installation and wiring

Programming LOGO!

LOGO! functions

Configuring LOGO!

LOGO! program module (card)

LOGO! software

Applications

Appendix

LOGO! Manual

A5E00228550-01

Valid range of this manual

The manual applies to devices of the series 0BA4.

Changes compared to previous releases of the manual

LOGO! 24o was added.

The digital module LOGO! DM 8 24R was added.

The analog module LOGO! AM 2 PT100 was added.

Description of changes and new features of the series 0BA4

devices.

Main differences compared to previous devices (0BA0 to 0BA3)

Higher performance: faster execution times

New program module (card) with more memory and know-how

protection, selectable at the parameters.

Display with background lighting and 4 x 12 characters.

New features of the current devices (0BA4)

You have 130 blocks available for creating the circuit program.

You can select retentivity also for time functions.

You can use the LOGO! cursor keys as inputs.

You can use the special functions “Shift register”, “Analog am-

plifier”, “Analog value monitoring” and “Analog differential

trigger”.

You can invert individual inputs.

Six of the basic functions are expanded with four inputs.

You can test your circuit program online using the PC.

Parameters for certain functions can also be derived from ana-

log values and counter values.

Counter: You can also use fast inputs (I5, I6).

Additional support

At our Internet address

http://www.siemens.com/logo

you can quickly and easily find answers to your queries about

LOGO!.

You can reach Technical Support under:

Phone: +49 (0)180 5050-222

Fax: +49 (0)180 5050-223

E-Mail: adsupport@siemens.com

Preface

iii

LOGO! Manual

A5E00228550-01

Safety guidelines

The notes in this user manual are for your own personal safety

and for preventing damage to assets. You should read them care-

fully and follow the instructions they give you. These notes are

highlighted with a warning triangle and are shown according to the

degree of hazard as follows:

!Danger

Warns that death, serious harm to health or damage to assets will result if

the respective precautionary measures are not taken.

!Warning

Warns that death, serious harm to health or damage to can result if the

respective precautionary measures are not taken.

!Caution

Warns that harm to health or damage to assets can result if the respective

precautionary measures are not taken.

Caution

Means that material damage may occur if corresponding safety measures

are not taken.

Note

Draws your attention to particularly important information relating to the

product and its handling, or to a part of the documentation requiring your

special attention.

Qualified personnel

Only skilled personnel should be allowed to start and operate

this device. Qualified personnel in the sense of the information on

safety technology in this manual are persons who are authorized

to commission, to ground and to tag circuits, equipment and sy-

stems in accordance with safety regulations and standards.

Preface

LOGO! Manual

A5E00228550-01

Use as intended

Please note:

!Warning

This device must always be used as intended for the applications de-

scribed in the catalog and in the technical specifications, and only in com-

bination with third-party devices or components approved or recom-

mended by Siemens.

Prerequisite for the safe and proper operation of the product is its proper

transportation, storage, installation and mounting, and careful operator

control and maintenance.

Trademarks

LOGO! is a trademark of SIEMENS AG .

Other designations in this documentation may represent trademarks, whose

use by third parties for their own purpose my infringe the right of the owner.

The reproduction, distribution or use of this document or its contents is not

permitted without express written authority. Offenders will be liable for

entries.

Disclaimer of liability

We have examined the contents of this publication for agreement with the

hardware and software described. Nevertheless, discrepancies can not be

ruled out. Any liability and warranty for the accuracy of this information is

excluded. The data in this manual are reviewed at regular intervals. Any

corrections required are included in the subsequent editions. Suggestions

for improvement are welcomed.

Preface

LOGO! Manual

A5E00228550-01

Contents

Preface i. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 Getting started with LOGO! 1. . . . . . .

2 LOGO! installation and wiring 11. . . . .

2.1 Setup of the modular LOGO! 13. . . . . . . . . . . . . . . . . . .

2.1.1 Maximum setup 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.2 Setup with different voltage classes 14. . . . . . . . . . . . .

2.2 Installing/removing LOGO! 16. . . . . . . . . . . . . . . . . . . .

2.2.1 DIN rail mounting 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2.2 Wall-mounting 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3 Wiring the LOGO! 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3.1 Connecting the power supply 23. . . . . . . . . . . . . . . . . . .

2.3.2 Connecting LOGO! inputs 25. . . . . . . . . . . . . . . . . . . . . .

2.3.3 Connecting outputs 31. . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4 Switching on the LOGO!/Power On 33. . . . . . . . . . . . .

3 Programming LOGO! 37. . . . . . . . . . . .

3.1 Connectors 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2 Blocks and block numbers 42. . . . . . . . . . . . . . . . . . . . .

3.3 The way to LOGO!, starting with the

circuit diagram 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4 The 4 Golden rules for the operation of LOGO! 48. .

3.5 Overview of the LOGO! menus 50. . . . . . . . . . . . . . . . .

3.6 Writing and starting the circuit program 51. . . . . . . . .

3.6.1 Select programming mode 51. . . . . . . . . . . . . . . . . . . . .

3.6.2 The first circuit program 53. . . . . . . . . . . . . . . . . . . . . . . .

3.6.3 Circuit program input 54. . . . . . . . . . . . . . . . . . . . . . . . . .

3.6.4 Assigning a circuit program name 60. . . . . . . . . . . . . . .

3.6.5 Password 61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.6.6 Switching LOGO! to RUN mode 66. . . . . . . . . . . . . . . .

3.6.7 Second circuit program 68. . . . . . . . . . . . . . . . . . . . . . . .

3.6.8 Deleting a block 74. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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A5E00228550-01

3.6.9 Deleting block groups 75. . . . . . . . . . . . . . . . . . . . . . . . .

3.6.10 Correcting typing errors 76. . . . . . . . . . . . . . . . . . . . . . . .

3.6.11 Deleting the circuit program 77. . . . . . . . . . . . . . . . . . . .

3.6.12 Summertime/wintertime conversion 78. . . . . . . . . . . . .

3.6.13 Synchronization 83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.7 Memory space and circuit dimensions 84. . . . . . . . . .

4 LOGO! functions 89. . . . . . . . . . . . . . . . .

4.1 Constants and connectors – Co 90. . . . . . . . . . . . . . . .

4.2 Basic functions list – GF 93. . . . . . . . . . . . . . . . . . . . . . .

4.2.1 AND (AND) 95. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2.2 AND with edge evaluation 96. . . . . . . . . . . . . . . . . . . . . .

4.2.3 NAND (NOT AND) 97. . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2.4 NAND with edge evaluation 98. . . . . . . . . . . . . . . . . . . .

4.2.5 OR (OR) 99. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2.6 NOR (NOT OR) 100. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2.7 XOR (exclusive OR) 101. . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2.8 NOT (Negation, Inverter) 101. . . . . . . . . . . . . . . . . . . . . . .

4.3 Basics on special functions 102. . . . . . . . . . . . . . . . . . . .

4.3.1 Designation of the inputs 103. . . . . . . . . . . . . . . . . . . . . . .

4.3.2 Time response 104. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.3.3 Backup of the real-time clock 105. . . . . . . . . . . . . . . . . . .

4.3.4 Retentivity 105. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.3.5 Parameter protection 106. . . . . . . . . . . . . . . . . . . . . . . . . .

4.3.6 Calculating the gain and offset of analog values 106. .

4.4 Special functions list – SF 109. . . . . . . . . . . . . . . . . . . . .

4.4.1 On-delay 113. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.2 Off-delay 117. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.3 On-/Off-delay 119. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.4 Retentive on-delay 121. . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.5 Wiping relay (pulse output) 123. . . . . . . . . . . . . . . . . . . . .

4.4.6 Edge triggered wiping relay 125. . . . . . . . . . . . . . . . . . . .

4.4.7 Asynchronous pulse generator 128. . . . . . . . . . . . . . . . .

4.4.8 Random generator 130. . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.9 Stairway lighting switch 132. . . . . . . . . . . . . . . . . . . . . . . .

4.4.10 Multiple function switch 135. . . . . . . . . . . . . . . . . . . . . . . .

4.4.11 Weekly timer 138. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.12 Yearly timer 143. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.13 Up/down counter 146. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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A5E00228550-01

4.4.14 Hours counter 150. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.15 Threshold trigger 155. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.16 Analog threshold trigger 158. . . . . . . . . . . . . . . . . . . . . . .

4.4.17 Analog differential trigger 161. . . . . . . . . . . . . . . . . . . . . .

4.4.18 Analog comparator 165. . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.19 Analog value monitoring 170. . . . . . . . . . . . . . . . . . . . . . .

4.4.20 Analog amplifier 173. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.21 Latching relay 175. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.22 Pulse relay 176. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.23 Message texts 179. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.24 Softkey 186. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.25 Shift register 190. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 Configuring LOGO! 193. . . . . . . . . . . . . . .

5.1 Selecting parameter assignment mode 194. . . . . . . . . .

5.1.1 Parameters 196. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.1.2 Selecting the parameters 197. . . . . . . . . . . . . . . . . . . . . .

5.1.3 Modifying parameters 198. . . . . . . . . . . . . . . . . . . . . . . . .

5.2 Setting the time-of-day and date

(LOGO! ... C) 201. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 LOGO! program module (card) 203. . . .

6.1 Security function (CopyProtect) 205. . . . . . . . . . . . . . . .

6.2 Inserting and removing

the program module (card) 208. . . . . . . . . . . . . . . . . . . . .

6.3 Copying data from the LOGO!

to the program module (card) 210. . . . . . . . . . . . . . . . . .

6.4 Copying data from the program module (card)

to LOGO! 212. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 LOGO! Software 215. . . . . . . . . . . . . . . . .

7.1 Connecting the LOGO! to a PC 218. . . . . . . . . . . . . . . . .

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viii

8 Applications 221. . . . . . . . . . . . . . . . . . . . .

8.1 Stairway or corridor lighting 223. . . . . . . . . . . . . . . . . . .

8.1.1 Requirements for a stairway lighting system 223. . . . . .

8.1.2 Previous solution 223. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.1.3 Lighting system with LOGO! 224. . . . . . . . . . . . . . . . . . . .

8.1.4 Special features and expansion options 226. . . . . . . . . .

8.2 Automatic door 227. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2.1 Requirements of an automatic door 227. . . . . . . . . . . . .

8.2.2 Conventional solution 228. . . . . . . . . . . . . . . . . . . . . . . . .

8.2.3 Door control system with LOGO! 228. . . . . . . . . . . . . . . .

8.2.4 Special features and expansion options 231. . . . . . . . . .

8.2.5 Extended solution with LOGO! 230RC 231. . . . . . . . . . .

8.3 Air-conditioning System 234. . . . . . . . . . . . . . . . . . . . . . .

8.3.1 Requirements for an air-conditioning System 234. . . . .

8.3.2 Advantages of using LOGO! 237. . . . . . . . . . . . . . . . . . . .

8.4 Factory door 239. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.4.1 Requirements for a gate control system 239. . . . . . . . . .

8.4.2 Previous solution 240. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.4.3 Extended LOGO! solution 242. . . . . . . . . . . . . . . . . . . . . .

8.5 Centralized control and monitoring

of several factory doors 243. . . . . . . . . . . . . . . . . . . . . . . .

8.5.1 Requirements for a gate control system 244. . . . . . . . . .

8.6 Luminous rows 247. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.6.1 Requirements for a lighting system 247. . . . . . . . . . . . . .

8.6.2 Previous solution 248. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.6.3 Luminous row control system with LOGO! 230RC 249.

8.7 Service water pump 251. . . . . . . . . . . . . . . . . . . . . . . . . . .

8.7.1 Requirements for a control system

of a service water pump 252. . . . . . . . . . . . . . . . . . . . . . .

8.7.2 Previous solution 252. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.7.3 Service water pump system with LOGO! 230RC 253. .

8.7.4 Special features and expansions 254. . . . . . . . . . . . . . . .

8.8 Further fields of application 255. . . . . . . . . . . . . . . . . . .

Contents

LOGO! Manual

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Appendix

A Technical data 259. . . . . . . . . . . . . . . . . . .

A.1 General technical data 259. . . . . . . . . . . . . . . . . . . . . . . . .

A.2 Technical data: LOGO! 230...

and LOGO! DM8 230R 261. . . . . . . . . . . . . . . . . . . . . . . . .

A.3 Technical data: LOGO! 24... and

LOGO! DM8 24 264. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A.4 Technical data: LOGO! 24RC...

and LOGO! DM8 24 R 267. . . . . . . . . . . . . . . . . . . . . . . . .

A.5 Technical data: LOGO! 12/24... and

LOGO! DM8 12/24R 270. . . . . . . . . . . . . . . . . . . . . . . . . . . .

A.6 Switching capacity and service life

of the relay outputs 273. . . . . . . . . . . . . . . . . . . . . . . . . . . .

A.7 Technical data: LOGO! AM 2 274. . . . . . . . . . . . . . . . . . .

A.8 Technical data: LOGO! AM 2 PT100 275. . . . . . . . . . . . .

A.9 Technical data: LOGO!Power 12 V 277. . . . . . . . . . . . . .

A.10 Technical data: LOGO!Power 24 V 279. . . . . . . . . . . . . .

A.11 Technical data: LOGO! Contact 24/230 281. . . . . . . . . .

B Determining the cycle time 283. . . . . . . .

C LOGO! without display 285. . . . . . . . . . .

D LOGO! menu structure 289. . . . . . . . . . .

E Order numbers 291. . . . . . . . . . . . . . . . . . .

F Abbreviations 293. . . . . . . . . . . . . . . . . . . .

Index 295. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents

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Contents

LOGO! Manual

A5E00228550-01

1 Getting started with LOGO!

Here’s LOGO!

LOGO! is a universal logic module made by Siemens.

LOGO! integrates

Controls

Operator and display panel with background lighting

Power supply

Interface for expansion modules

Interface for the program module (card) and a PC cable

Pre-configured standard functions, e.g. on- and

off-delays, pulse relay and softkey

Timer

Digital and analog flags

Inputs and outputs, according to the device type.

What LOGO! can do for you

LOGO! offers solutions for domestic and installation engi-

neering (e.g. for stairway lighting, external lighting, sun

blinds, shutters, shop window lighting etc.), switch cabinet

engineering, as well as for mechanical and apparatus engi-

neering (e.g. for gate control systems, air-conditioning sys-

tems, or rainwater pumps etc.).

LOGO! can also be implemented for special control sys-

tems in conservatories or greenhouses, for control signal

processing and, by connecting a communication module

(e.g. ASi) for distributed local controlling of machines and

processes.

Special versions without operator panel and display unit

are available for series production applications in small ma-

chine, apparatus, switching cabinet and installation engi-

neering.

LOGO! Manual

A5E00228550-01

Which devices are available?

LOGO! Basic is available in two voltage classes:

Class 1  24 V, i.e. 12 V DC, 24 V DC, 24 V AC

Class 2 > 24 V, i.e. 115...240 V AC/DC,

in the versions:

With display: 8 inputs and 4 outputs.

Without display (”LOGO! Pure”): 8 inputs and 4 out-

puts.

Each version is integrated into 4 subunits (SU), is equipped

with an expansion interface and provides 33 pre-configured

standard and special function blocks for the creation of

your circuit program.

Which expansion modules are available?

LOGO! digital modules are available for operation with

12 V DC, 24 V AC/DC and 115...240 V AC/DC, and are

equipped with four inputs and four outputs.

LOGO! analog modules are available for operation with

12 V DC and 24 V DC, and are equipped with two ana-

log inputs or two Pt100 inputs.

LOGO! communications modules (CM), for example the

communications module AS interface, that is described

in a separate documentation.

The digital/analog modules are integrated in two subunits.

Each one is equipped with two expansion interfaces for

connecting additional modules.

Devices no longer available

All versions with 6 inputs.

A long variant with 12 inputs and 8 outputs

The bus version with 12 inputs and 8 outputs.

The modular features of LOGO! replace this type of equip-

ment.

It’s your choice

The various LOGO! Basic versions and expansion modules

offer you a highly flexible and adaptive system to suit your

specific tasks.

Gettin

started with LOGO!

LOGO! Manual

A5E00228550-01

The LOGO! system offers you many solutions such as for

small domestic installations, simple automation tasks, and

even complex engineering tasks involving its integration

into a bus system (e.g. communications module AS inter-

face).

Note

LOGO! Basic may only be equipped with expansion mod-

ules of the same voltage class. Mechanical encoding pins

in the housing prevent you from connecting devices of a

different voltage class.

Exception: The left-hand interface of an analog module or

communication module is galvanically isolated.

This type of expansion module can therefore be connected

to devices of a different voltage class.

See also Chapter 7.

Note

LOGO! versions without display unit, i.e. the LOGO! 24o,

LOGO! 12/24RCo, LOGO! 24RCo and LOGO! 230RCo

units, do not have an operator panel and display unit. They

are primarily designed for use in small machine and pro-

cess equipment engineering systems for series production.

LOGO!...o versions are not programmed directly at the

unit. Instead, the circuit program is downloaded to this de-

vice by means of LOGO!Soft Comfort or program modules

(Cards) of other LOGO! 0BA4 units.

LOGO! versions without display can not write data to pro-

gram modules (Cards).

See Chapter 6, 7 and Appendix C.

LOGO! Manual

A5E00228550-01

A small example in the first part of this chapter introduces

the operating principle of LOGO!.

We shall first show you the meaning of two basic terms,

namely the connector and the block.

In the next step, we shall create a circuit program based

on a simple conventional circuit, which you ...

can enter directly in LOGO! in the third step.

It will take you only a few pages of this manual store your

first executable circuit program in the LOGO! unit. With a

suitable hardware (switches etc.), you will then be able to

carry out first tests.

Pro

rammin

LOGO!

LOGO! Manual

A5E00228550-01

3.1 Connectors

The LOGO! is equipped with inputs and outputs

Example of a configuration with several modules:

L+ M I13I14I15I16

Q11

Q12

Q10

RUN/STOP

L+ M

A!3

RUN/STOP

L+ M I1 I2 I3 I4 I5 I6

Q1 Q2 Q3 Q4

Inputs

Outputs

AI1 AI2 L+ M I9 I10I11I12

RUN/STOP

M3U3AI4M4U4

Analog inputs

1 2 1

1 2 1 2

1 2 1 2 1 2 1 2

1 2 1 2

INPUT 2x (..10 V/..20 mA)

L+ M

Each input is identified by the letter I plus a number. When

you take a look at the LOGO! from the front, you can see

the input terminals at the top. Only the analog modules

LOGO! AM 2 and AM 2 PT100 have the inputs at the bot-

tom.

Each output is identified by the letter Q plus a number. In

the figure, you can see the output terminals at the bottom.

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Note

LOGO! can recognize, read and switch the I/O of all ex-

pansion modules, regardless of their type. The I/O are pre-

sented in the installation order of the modules.

The following I/Os and flag blocks are available for the cre-

ation of your circuit program: : I1 to I24, AI1 to AI8, Q1 to

Q16, AQ1 and AQ2, M1 to M24 and AM1 to AM6. Also

available are the shift register bits S1 to S8, 4 cursor keys

C, C , C  and C , as well as 16 blank outputs X1 to

X16. More details are found in Chapter 4.1.

The following applies to the inputs I7 and I8 of LOGO!

12/24... and LOGO! 24/24o versions: If Ix is used in the

circuit program, this input signal is digital; signals at AIx

are analog. Input AIx can only represent the connector that

is actually capable of handling analog signals.

LOGO!’s connectors

The term connector refers to all connections and states in

LOGO! .

The I/O status can be ’0’ or ’1’. Status ’0’ means that the

input does not carry a voltage. Status ’1’ means that the

input carries voltage.

We have introduced ’hi’, ’lo’ and ’x’ connectors to make it

easier for you to create the circuit program:

’hi’ (high) is assigned the status ’1’,

’lo’ (low) is assigned the status ’0’.

You do not have to use all the of connectors of a block. The

circuit program automatically assigns the unused connec-

tors a status that ensures proper functioning of the relevant

block. If you prefer to do so, you can identify unused con-

nectors with an ’x’.

For information on the meaning of the term “block”, refer to

Chapter 3.2.

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LOGO! knows the following connectors:

Con-

nectors

LOGO! Basic / Pure

DM AM

Inputs LOGO! 230RC/RCo,

LOGO! 24 RC/RCo Two groups:

I1... I4 and

I5 ... I8

I9 ... I24 AI1...AI8

LOGO! 12/24RC/

RCo, LOGO! 24/24o I1... I6, I7, I8

AI1, AI2 I9 ... I24 AI3...AI8

Outputs Q1...Q4 Q5 ...

Q16 none

lo Logical ’0’ signals (off)

hi Logical ’1’ signals (on)

x An existing connection that is not used

DM: Digital module.

AM: Analog module.

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3.2 Blocks and block numbers

This chapter shows you how to use LOGO! elements to

create complex circuits and how blocks and I/O are inter-

connected.

In Chapter 3.3 we are going to show you how to transform

a conventional circuit to obtain a LOGO! circuit program.

Blocks A block in LOGO! represents a function that is used to con-

vert input information into output information. Previously

you had to wire the individual elements in a control cabinet

or terminal box.

When you create the circuit program, you interconnect the

blocks. To do so, simply select the connection you require

from the Co menu The menu name Co is an abbreviation

of the term “Connector”.

Logic operations

The most elementary blocks are the logic operations:

AND

OR

...

1Inputs I1 and I2 are here connected

to the OR block. The last two inputs

of the block remain unused and are

identified be the creator of the circuit

program with an ’x’.

These special functions offer you a significantly higher per-

formance:

Pulse relay

Up/down counter

On-delay

Softkey

....

In Chapter 4 you will find a full list of the LOGO! functions.

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View of blocks on the LOGO! display

The figure below shows a typical view of the LOGO! dis-

play. As you can see, it can show only one block at a time.

We have therefore introduced block numbers to help you

check the circuit structure.

1

I3 Q1

View of the LOGO! display

Block number -

assigned by

LOGO!

A further block is con-

nectedat this point

Input

This connector is not required Output

Block

Assigning a block number

LOGO! assigns each new block a circuit program a block

number.

LOGO! uses these block numbers to indicate the block in-

terconnections. Hence, these numbers primarily represent

a help for your orientation in the circuit program.

1

B2 1

B3 Q1

Scrolling the circuit program using the key

1

These blocks are

interconnected

Block numbers

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The figure above shows you three views of the LOGO! dis-

play, which represent the circuit program. As you can see,

LOGO! interconnects the blocks using their numbers.

Advantages of the block numbers

You can connect almost any block to an input of the current

block by means of its block number. In this way, you can

reuse the interim results of logical or other operations, re-

duce programming effort, save memory space and clean

up your circuit layout. To do so, however, you need to know

how LOGO! has named the blocks.

Note

We advise you to create an organizational program chart.

You will find this a valuable help when you create the cir-

cuit program, because you can enter all block numbers

assigned by LOGO! in this chart.

By using the LOGO!Soft Comfort software to program the

LOGO!, you can directly create a function chart of your

circuit program. LOGO!Soft Comfort also allows you to as-

sign 8-character names to up to 64 blocks, and to view

these on the LOGO! display in parameter assignment and

programming mode (see Chapter 3.4).

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3.3 The way to LOGO!, starting with the cir-

cuit diagram

View of a circuit diagram

You know, of course, how a circuit logic is represented in a

circuit diagram. Nevertheless, here is an example:

S1 K1

The load E1 is switched on

and off by means of the

switches (S1 OR S2) AND S3.

S3 Relay K1 picks up when the

condition (S1 OR S2) AND S3

is met.

Creating this circuit with LOGO!

In LOGO! you create a circuit logic by interconnecting

blocks and connectors:

S1 ... S3 Wiring of the inputs

xQ1

&1

Circuit program in LOGO!

Wiring of the outputs

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Note

Although you have four inputs available for logic opera-

tions (Basic functions, see Chapter 4.2), most of the views

will only show three inputs for reasons of clarity. You pro-

gram this fourth input and assign parameters just like you

do with the other three inputs.

To create a circuit logic in LOGO!, start at the output.

The output is the load or relay that is to be switched.

Convert the circuit logic into blocks by working through the

circuit, starting at the output and ending at the input:

Step 1: The make contact S3 is interconnected in series to

output Q1 and to a further circuit element. A series connec-

tion corresponds with the AND block:

xQ1

Step 2: S1 and S2 are connected in parallel. A parallel cir-

cuit corresponds with the OR block:

xQ1

&1

Unused inputs

The circuit program automatically assigns the unused con-

nectors a status that ensures proper functioning of the rele-

vant block. If you like, you can label unused connectors

with an ’x’ identifier.

In our example we shall use only two inputs of the OR

block and two inputs of the AND block; the relevant unused

third and fourth inputs are identified at the connector with

an ’x’.

Now connect the I/Os to the LOGO! .

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Wiring Connect the switches S1 to S3 to the screw terminals of

your LOGO! :

S1 to connector I1 of LOGO!

S2 to connector I2 of LOGO!

S3 to connector I3 of LOGO!

The output of the AND block controls the relay at output

Q1. The load E1 is connected to output Q1.

Wiring example

The following figure shows you the wiring, based on a

230 V AC version of LOGO!.

L1 NInput wiring

Output wiring

NL1 I1 I2 I3 I4

1 2

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3.4 The 4 Golden rules for the operation of

LOGO!

Rule 1

Changing the operating mode

You create the circuit program in programming mode.

After power is on, and when the display shows “No Pro-

gram / Press ESC”, press the ESC key to select pro-

gramming mode.

Timer and parameter values of an existing circuit pro-

gram can be edited both in parameter assignment

mode and in programming mode. During parameter

assignment the LOGO! is in RUN mode, i.e. it contin-

ues execution of the circuit program (see Chapter 5). To

work in programming mode, you need to terminate the

circuit program by calling the “Stop” command.

Select the ’Start’ command on the main menu to set

RUN mode.

When the system is in RUN, you can return to parame-

ter assignment mode by pressing the ESC key.

When parameter assignment mode is open and you

want to return to programming mode, select the

“Stop” command from the parameter assignment

menu, and confirm “Stop Prg” prompt with “Yes”. To

do so, move the cursor to “Yes” and confirm with OK.

For more details on operating modes, refer to Appendix D.

Note

The following applies to 0BA2 device versions and earlier:

You can open programming mode by pressing ++OK.

You set parameter assignment mode by pressing ESC+OK.

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Rule 2

Outputs and inputs

Always create your circuit program by working from the

output to the input.

You can connect an output to several inputs, but not the

same input to several outputs.

Within the same program path you may not connect an

output to an upstream input. For such internal recur-

sions you should interconnect flags or outputs.

Rule 3

Cursor and cursor movement

The following applies when you edit a circuit program:

You can move the cursor when it appears in the form

of an underscore:

– Press , , or to move the cursor in the circuit

program.

– Press OK to change to ”Select connector/block”

– Press ESCto exit programming mode.

You select a connector/block

when the cursor appears as solid square

– Press or to select a connector or a block.

– Confirm with OK.

– Press ESC to return to the previous step.

Rule 4

PlanningBefore you start to create a circuit program, you should

either first create design on paper or program LOGO!

directly using LOGO!Soft Comfort.

LOGO! can only save complete and faultless circuit pro-

grams.

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3.5 Overview of the LOGO! menus

>Program..

Card..

Clock..

Start

>Edit..

Clear Prg

Password

> Card

Card

CopyProtect

Main menu Programming menu

Transfer menu

>Stop

Set Param

Set Clock

Prg Name

ESC

Parameter assignment menu

Programming mode

Parameter assignment mode

= LOGO!

>Set Clock

S/W Time

Sync

Real-time clock menu

ESC

For more details on these menus, refer to Appendix D.

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3.6 Writing and starting the circuit program

After you have designed a circuit, you want to write it to

your LOGO! . The small example below shows how to do

this.

3.6.1 Select programming mode

You have connected the LOGO! to the power supply and

switched it on. The display now shows you the message:

No Program

Press ESC

Switch the LOGO! to programming mode by pressing the

ESC. This will take you to the main menu of the LOGO!:

>Program..

Card..

Clock..

Start

LOGO!’s main menu

The first character in the first line is the ”>” cursor. Press

and to move the ”>” cursor up and down. Move it to ”Pro-

gram..” and confirm with OK. LOGO! opens the program-

ming menu.

>Edit..

Clear Prg

Password

The LOGO!’s programming menu

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Here you can also move the ”>” cursor by pressing and

. Move the ”>” cursor to ”Edit..” (for editing, i.e. input) and

confirm with OK.

>Edit Prg

Edit Name

Memory?

The Edit menu of LOGO!

Move the ”>” cursor to ”Edit Prg” (for editing the circuit

program) and confirm with OK. LOGO! now shows you the

first output:

The first output of LOGO!

You are now in programming mode. Press and to se-

lect the other outputs. Now start to edit your circuit pro-

gram.

Note

Because we have not yet saved a password for the circuit

program in LOGO!, you can directly enter editing mode.

When you select “Edit Prg“ after you have saved a pass-

word-protected circuit program, you are prompted to enter

a password and to confirm it with OK. You can only edit

the program after you have entered the correct password

(see Chapter 3.6.5.).

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3.6.2 The first circuit program

Let us now take a look at the following parallel circuit con-

sisting of two switches.

Circuit diagram

The corresponding circuit diagram:

S1 K1

The load is switched on with

S1 OR S2. LOGO! interprets

this parallel circuit as an ’OR’

logic, because S1 OR S2

switches on the output.

Translated into a LOGO! circuit program this means: Relay

K1 is at output Q1 is controlled by means of an OR block.

Circuit program

S1 is connected to the I1 and and S2 to the I2 input con-

nector of the OR block.

The corresponding layout of the circuit program in LOGO!:

xQ1

1

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Wiring The corresponding wiring:

L1N I4 I5I6I7I8

Q1 Q2 Q3 Q4

S1 S2

I1I1 I3I1I1 I1I1I1I2

1 2 1 2 1 2 1 2

S1 switches input I1, while S2 switches input I2. The load is

connected to the relay Q1.

3.6.3 Circuit program input

Let us now write the circuit program, starting at the output

and working towards the input. LOGO! initially shows the

output:

The first LOGO! output

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You will see an underscore below the Q in Q1, which is the

cursor. The cursor indicates your current position in the

circuit program. You can move the cursor by pressing the

, , and keys. Now press the key. The cursor

moves to the left.

The cursor indicates your current posi-

tion in the circuit program.

–

At this point you enter only the first (OR) block. Press OK

to select editing mode.

The cursor is displayed as a solid

square: You can now select a connec-

tor or a block

The cursor no longer appears in the form of an underscore;

but instead as a flashing solid square. LOGO! offers you

here various options.

Select GF (basic functions) by pressing the key until GF

appears, and confirm with OK. LOGO! now shows the first

block from the list of basic functions:

The AND is the first block of the basic

functions list. The solid square cursor

prompts you to select a block.

& B1

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Now press or until the OR block appears on the dis-

play:

1B1

The solid square cursor is still posi-

tioned on the block.

Press OK to confirm your entries and exit the dialog.

1

The display now shows:

1

Your complete circuit

program layout

Block

number

–

You have now entered the first block. Each new block is

automatically assigned a block number. The only thing left

to do is to interconnect the block inputs. This is how it is

done:

Press OK.

1

The display now shows:

Select the Co list: Press OK

1

The display now shows:

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The first element of the Co list is the ”Input not used” char-

acter, namely the ’x’. Press or to select input I1.

Note

Press  to go the start of the Co list: I1, I2 .... to lo, then

again ’x’. Press  to go to the end of the Co list: lo, hi, Q

..... to I1, and once again ’x’.

1Q1

Press OK. I1 is now connected to the input of the OR

block. The cursor jumps to the next input of the OR block.

1

The display now shows:

Q1 1

Your complete circuit program

in LOGO! up to now:

I1 I1

–

Now you connect input I2 to the input of the OR block. You

already know how to do this:

1. Switch to editing mode: Press OK

2. To select the Co list: Press or

3. To confirm the Co list with: Press OK

4. To select I2: Press or

5. To apply I2: Press OK

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I2 is now connected to the input of the OR block:

1

The display now shows:

Q1 1

I1 I1

Your circuit program layout in

LOGO! up to now

We do not need the last two inputs of the OR block for this

circuit program. You can mark the unused inputs with an ’x’.

Enter the ’x’ character twice:

1. Switch to editing mode: Press OK

2. To select the Co list: Press or

3. To accept the Co list: Press OK

4. To select ’x’: Press or

5. To apply x: Press OK

LOGO! returns to output Q1.

The display now shows:

1

This is the layout of your

circuit program

Q1B1

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Note

You can invert individual inputs of the basic and special

functions, i.e. if an input carries a logical “1” signal, the cir-

cuit program will output a logical “0”; vice versa, a logical

“0” is inverted into a logical “1” signal.

To invert an input, move the cursor to the relevant position,

e.g.:

1B1

Confirm with OK.

Now press  or  to invert this input:

Next, press ESC.

1B1

I3 1

Your circuit program layout

You can review your first circuit program by pressing or

to move the cursor through the circuit program.

We shall now exit circuit programming mode. This is how it

is done:

Return to the programming menu: Press ESC

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Note

LOGO! has now saved your circuit program to nonvolatile

memory. The circuit program remains in the LOGO! me-

mory until you explicitly delete it.

3.6.4 Assigning a circuit program name

You can assign your circuit program a name that consists

of up to 16 uppercase/lowercase letters, numbers and spe-

cial characters.

In the programming menu:

1. To move the “>” cursor to ’Edit..’: Press or

2. To accept ’Edit’: Press OK

3. Move the “>” cursor to ’Edit Name’: Press or

4. To accept ’Edit Name’: Press OK

Press and to list the alphabet from A (a) to Z (z), num-

bers and special characters, either in ascending or de-

scending order. You can select any letter, number or char-

acter.

To enter a space character, simply movie the cursor with

to the next position. This character is the first one in the list.

Examples: Press once to select an “ A ”

four times to select “ { ”, etc.

The following character set is available:

A B C D E F G H I J K L M N O

P Q R S T U V W X Y Z a b c d e

f g h i j k l m n o p q r s t u

v w x y z 0 1 2 3 4 5 6 7 8 9 !

” # $ % & ’ ( ) * + , – . / : ;

< = > ? @ [ \ ] ^ _ ‘ { | } ~

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Let us assume you want to name your circuit program

“ABC”:

5. Select “ A”: Press

6. Move to the next letter: Press

7. Select “ B”: Press

8. Move to the next letter: Press

9. Select “ C”: Press

10.To confirm the complete name: Press OK

Your circuit program is now named “ABC”, and you are re-

turned to the programming menu.

To change the name of your circuit program, proceed in

the same way.

Note

You can change the name of the circuit program only in

programming mode. You can read the name both in pro-

gramming and in parameter assignment mode

3.6.5 Password

You can protect a circuit program from unauthorized access

by assigning it a password.

To assign a password

A password may have a maximum length of 10 characters,

and consists only of uppercase letters (A to Z). Directly at

the LOGO!, the password can be assigned, edited or deac-

tivated only in the “Password” menu.

In the programming menu:

1. Move the “>” cursor to ’Password’: Press or

2. To confirm the ’Password’: Press OK

Press or to move up and down the alphabet to select

your letters. Because LOGO! only provides uppercase let-

ters for the password, you can quickly access to letters “at

the end“ of the alphabet by using the button:

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Press once to select “Z”

Press twice to select “Y”, etc.

Let us assign the password “AA” to our first circuit pro-

gram. The display now shows:

Old:

No Password

New:

This procedure is the same as for entering the name of the

circuit program. Select “New” and enter:

3. Select “ A”: Press

4. To move to the next letter: Press

5. Select “ A”: Press

The display now shows:

Old:

No Password

New:

6. To confirm the password: Press OK

Your circuit program is now protected with the password

“AA”, and you are returned to the programming menu.

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Note

You can cancel the input of a new password with ESC. In

this case, LOGO! returns to the programming menu with-

out saving the password.

You can also set your password using LOGO!Soft Comfort.

You can not edit a password-protected circuit program at

the LOGO! or upload it to LOGO!Soft Comfort unless you

enter the correct password.

To allow you to create and edit a circuit program for a pro-

tected module (Card), you first need to assign a password

to this new program (see Chapter 6.1).

Changing the Password

You need to know the current password in order to change

it.

In the programming menu:

1. Move the ’>’ cursor to ’Password’: Press or

2. To confirm the ’Password’: Press OK

Select “Old” and enter your old password (in our case: ’AA’)

by repeating steps 3 through 6 as described earlier.

The display now shows:

Old:

New:

Now you can select “New” to enter the new password, e.g.

“ZZ”:

3. Select “Z”: Press

4. To move to the next letter: Press

5. Select “Z”: Press

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The display now shows:

Old:

New:

6. To confirm your new password: Press OK

Your new password “ZZ” is now set, and you are returned

to the programming menu.

Deactivating the Password

Let us assume you want to deactivate the password for

whichever reason. For example, you want to allow another

user to edit your circuit program. You must know your

current password (in our example “ZZ”), same as if you

were changing it.

In the programming menu:

1. Move the ’>’ cursor to ’Password’: Press or

2. To confirm the ’Password’: Press OK

Select “Old” and enter your current password under as

described in steps 3 to 5. Confirm your entries with OK.

The display shows:

Old:

New:

Clear the password by leaving the input box blank:

3. To confirm the “blank” password: Press OK

The password is ”cleared”, and you are returned to the pro-

gramming menu.

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Note

This action disables the password prompt, and thus per-

mits access without password.

Let the password prompt be deactivated for the time be-

ing, in order to accelerate progress in our further exercises

and examples.

Password: Wrong Password!

When the user inputs the wrong password and confirms

the input with OK, LOGO! does not open editing mode, but

returns to the programming menu. This repeats itself over

and again until you input the correct password.

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3.6.6 Switching LOGO! to RUN mode

In the main menu, select RUN to start LOGO!.

1. To return to the main menu: Press ESC

2. Move the ’>’ cursor to ’Start’: Press or

3. To confirm ’Start’: Press OK

LOGO! runs the circuit program and and shows the follow-

ing display:

Display field of the LOGO! in RUN mode

Date and current time-of-day

(only for versions with real-

time clock). This element

flashes if the date and time

are not set.

2003-01-27

Mo 09:00

Press

Inputs I1 to I9

0.. 123456789

1..0123456789

2..01234 Inputs I20 to I24

Inputs I10 to I19

Press

0.. 123456789

1..0123456

Outputs Q1 to Q9

Outputs Q10 to Q16

Press

Flags M1 to M9

0.. 123456789

1..0123456789

2..01234 Flags M20 to M24

Flags M10 to M19

Press

ESC+Key 4 cursor keys for manual inter-

vention in the circuit program

(ESC+key)

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What is meant by: ”LOGO! is in RUN”?

In RUN mode, LOGO! executes the circuit program. To do

so, LOGO! first reads the status at the inputs, determines

the status of the outputs by means of the user program,

and switches these on or off according to your settings.

This is how LOGO! indicates the I/O status:

0.. 123456789

1..0123456

Input/output status is ’1’:

inverted

Input/output status is ’0’:

not inverted

In this example, only the inputs I1, I15, Q8 and Q12 are set

“high“.

0.. 123456789

1..0123456789

2..01234

Status indication on the display

0.. 123456789

1..0123456789

2..01234

S1 S2

=1 When switch S1 is closed,

the status at input I1 is hi.

LOGO! computes the output

states by means of the cir-

cuit program.

Output Q1 = ’1’, in this

case.

When Q1 = ’1’, LOGO! sets

relay Q1, and the load con-

nected to Q1 is supplied

with voltage.

I1 I2

Let us examine

this, using our

example:

0.. 123456789

1..0123456

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3.6.7 Second circuit program

Up to this point, you have successfully created your first

circuit, and assigned it a name and, if desired, a password.

In this section we are going to show you how to modify ex-

isting circuit programs and how to use the special func-

tions.

Using this second circuit program, we are going to show

you how to:

Add a block to an existing circuit program.

Select a block for a special function.

Assign parameters.

Modifying circuits

We shall use the first circuit program as a basis for the sec-

ond, with some slight modifications.

Let us take a first look at the circuit diagram for the second

circuit program:

S1 S2

You already know the first part of

the circuit. S1 and S2 switch a

relay, which is to be used to switch

on the load E1, and to switch off

the load with a delay of 12 minutes.

K1 E1

In LOGO!, this is the circuit program layout:

1

Par

This is the

new block

You can see the OR block and the output relay Q1 we have

already used in the first circuit program. The only difference

is the new off-delay block.

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Editing the circuit program

Switch the LOGO! to programming mode.

As a reminder:

1. Switch the LOGO! to programming mode

(in RUN: Press ESC to enter the parameter assignment

mode. Select the ’Stop’ command, confirm with OK,

then move the ’>’ cursor to ’Yes’, and once again con-

firm with OK). See Page 48.

2. On the main menu, select ”Program”

3. On the Programming menu, select “Edit”, confirm with

OK. Next, select ”Edit Prg” and confirm with OK.

If required, enter your password at the prompt and con-

firm with OK.

You can now modify the current circuit program.

Adding a block to a circuit program

Move the cursor to the B in B1 (B1 is the number of the OR

block):

To move the cursor:

Press

We now insert the new block at this position.

Confirm with OK.

LOGO! shows you the BN list

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Press  to select the SF list:

The SF list contains the special

function blocks.

Press OK.

The block of the first special function is shown:

Trg

Par Q1

When you select a special or basic function

block, LOGO! shows you the relevant func-

tion block. The solid square cursor is posi-

tioned on the block. Press  or  to select

the required block.

Select your block (off-delay, see the next figure), and then

press OK:

The added block is assigned the block num

ber B2. The cursor is positioned at the top

input of the added block.

Par Q1

Before you press

’OK’, this shows

the entry Trg

The B1 block previously connected to Q1 is automatically

connected to the uppermost input of the new block. Note

that you can only interconnect digital inputs with digital out-

puts or analog inputs with analog outputs. The ’old’ block

will otherwise be lost.

The off-delay block has three inputs. At the top is the trig-

ger input (Trg) you use to start the off-delay time. In our

example, the OR block B1 triggers the off-delay. You reset

the time and the output with a signal at the reset input. Set

the off-delay time at parameter T of the input Par.

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In our example we do not use the reset input of the off-

delay function, and we identify it with an ’x’ connector.

Par Q1

B2 This is what the display should now show

Assigning block parameters

Now you set the off-delay time T:

1. Move the cursor to Par, if it not already at this position:

Press or

2. Switch to editing mode: Press OK

LOGO! shows the parameters in the parameter assignment

window:

“+” means: The parameter

is shown and can be modi-

fied in the parameter as-

signment mode.

“R” means: Retentivity is

enabled for this block.

T: The block pa-

rameter B2 is a

time function

B2 +R

T =00:00s

Time value Timebase

To change the time value:

Press and to position the cursor.

Press and to modify the value at the relevant posi-

tion.

Confirm your entries with OK.

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Setting the time

Set the time T = 12:00 minutes:

1. Move the cursor to the first digit: Press or

2. Select the digit ’1’: Press or

3. Shift the cursor to the second digit: Press or

4. Select digit ’2’: Press or

5. Move the cursor to the unit: Press or

6. Select the timebase ’m’ (for minutes): Press or

Showing/hiding parameters – the parameter protection mode

If you want to show/hide the parameter and allow/prevent

its modification in parameter assignment mode:

1. Move the cursor to the protection mode: Press or

2. Select the protection mode: Press or

The display should now show:

Protection mode +:

The value of the time T

can be modified in pa-

rameter assignment

mode

Protection mode – :

The value of the time T

is hidden in parameter

assignment mode

T=12:00m

B2 +R T=12:00m

B2 –R

3. Confirm your entries with: OK

Enabling/disabling retentivity

To decide whether you want to retain your current data af-

ter a power failure or not:

1. Move the cursor to the retentivity setting: Press or

2. Select the retentivity setting: Press or

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The display now shows:

Retentivity R: Current

data are retained Retentivity /: Current

data are not retained

T=12:00m

B2 –/

T=12:00m

B2 –R

3. Confirm your entries with OK

Note

For further information on the protection mode, refer to

Chapter 4.3.5.

For further information on retentivity,

refer to Chapter 4.3.4.

You can modify the protection mode and retentivity setting

only in programming mode, i.e. this is not possible in pa-

rameter assignment mode.

In this manual, the protection mode (”+” or “–”) and reten-

tivity (”R” or “/”) settings are only shown in the displays

where these can actually be changed.

Verification of the circuit program

This program branch for Q1 is now completed. LOGO!

shows you the output Q1. You can once again view the cir-

cuit program on the display. Use the keys to browse the

circuit program, i.e. press or to move from block to

block, and to move between the inputs at a block.

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Closing the programming mode

Although you were shown how to exit the programming

mode when you created your first circuit program,

here is a reminder:

1. To return to the programming menu: Press ESC

2. To return to the main menu: Press ESC

3. To move the ’>’ cursor to ’Start’: Press or

4. To confirm ’Start’: Press OK

LOGO! is back in RUN mode:

You can press or

to scroll the pages and to monitor the I/O

states.

2003-01-27

Mo 09:30

3.6.8 Deleting a block

Let us assume you want to delete the block B2 from your

circuit program and connect B1 directly to Q1.

Par

B1 B2

Proceed as follows:

1. Switch the LOGO! to programming mode

(as a reminder, refer to Page 48).

2. Select ’Edit’: Press or

3. Confirm ’Edit’: Press OK

4. Select ’Edit Prg’: Press or

5. Confirm ’Edit Prg’: Press OK

(If required, enter your password and confirm with OK).

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6. To move the cursor to the input of Q1, i.e. to B2,

press :

B2 Q1

7. Confirm with OK.

8. Now replace block B2 with block B1 at output Q1.

The procedure:

– Select the BN list: Press or

– Accept the BN list: Press OK

– Select ’B1’: Press or

– Apply ’B1’: Press OK

Result: Block B2 is deleted, because it is no longer used in

the circuit. Block B1 has replaced B2 directly at the output.

3.6.9 Deleting block groups

Let us assume you want to delete the blocks B1 and B2

from the following circuit program (corresponds with the

circuit program in Chapter 3.6.7).

Par

B1 B2

Proceed as follows:

1. Switch the LOGO! to programming mode

(as a reminder, refer to page 48).

2. To select ’Edit’: Press or

3. To confirm ’Edit’: Press OK

4. To select ’Edit Prg’:Press or

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5. To confirm ’Edit Prg’: Press OK

(if required, enter your password and confirm with OK).

6. To move the cursor to the input of Q1, i.e. to B2,

press :

B2 Q1

7. Confirm with OK.

8. Now set the connector ’x’ at output Q1 instead of block

B2. To do so:

– Select the Co list: Press or

– Accept the Co list: Press OK

– Select ’x’: Press or

– Apply ’x’: Press OK

Result: Block B2 is deleted, because it is no longer used in

the circuit. This includes all blocks connected to B2. In this

example, block B1 also.

3.6.10 Correcting typing errors

Programming errors can be corrected easily in LOGO! :

Provided editing mode is not yet closed, you can revert

by one step by pressing ESC.

If you have already configured all inputs, simply reconfi-

gure the faulty input:

1. Move the cursor to the faulty position

2. Change to editing mode. Press OK

3. Enter the correct input circuit.

You can only replace a block with a block that has exactly

the same number of inputs. However, you can delete the

old block and then insert a new one. You can choose any

new block.

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3.6.11 Deleting the circuit program

To delete a circuit program:

1. Switch the LOGO! to programming mode

>Program..

Card..

Clock..

Start

LOGO! opens the main menu

2. On the main menu, press or to move the ’>’ cursor

to ’Program’. Press OK.

>Edit..

Clear Prg

Password

LOGO! changes to the programming

3. Move the ’>’ cursor to ’Clear Prg’: Press or

4. Confirm ’Clear Prg’: Press OK

Clear Prg

>No

Yes

To cancel deletion of the circuit program, leave the ’>’ cur-

sor at ’No’ and press OK.

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If you are sure that you want to delete the circuit program

from memory:

5. Move the ’>’ cursor to ’Yes’: Press or

6. Press OK.

To prevent unintentional deletion of

your circuit program, you are

prompted to enter your password

(provided you have assigned one).

Password?

7. Enter your password.

8. Press OK. The circuit program is deleted.

Note

Although you may have forgotten your password, you can

still delete the circuit program by entering the wrong pass-

word four times.

3.6.12 Summertime/wintertime conversion

You can enable or disable automatic Summertime/winter-

time conversion in programming mode by calling the

“Clock” menu command.

1. Switch the LOGO! to programming mode.

2. You are now in the main menu and want to select the

’Clock’ menu command: Press or

3. Confirm ’Clock’: Press OK

4. Move the ’>’ cursor to ’S/W Time’: Press or

5. Confirm ’S/W Time’: Press OK

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LOGO! shows the following display:

>On

Off

S/W Time:

Off

The current setting of automatic S/W Time conversion is

shown in the bottom row. The default setting is ’Off’: dis-

abled.

Enabling summertime/wintertime conversion

You now want to enable this conversion and define or set

its parameters:

1. Move the ’>’ cursor to ’On’: Press or

2. Confirm ’On’: Press OK

The display shows:

>EU

3. Select the desired conversion: Press or

What is shown on the display ?:

’EU’ represents the start and end of European summer-

time.

’UK’ represents the start and end of summertime in the

United Kingdom.

’US’ represents the start and end of summertime in the

United States.

’AUS’ represents the start and end of Australian

summertime.

’AUS-TAS’ represents the start and end of Australian/

Tasmanian summertime.

’NZ’ represents the start and end of New Zealand

summertime.

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. . : Here you can enter any month, day and time zone

difference.

The preset conversion data for EU, UK and US are found in

the table below:

Start of summertime End of summertime Time zone dif-

ference ∆

EU Last Sunday in March:

02:00––>03:00 Last Sunday in Octo-

ber: 03:00––>02:00 60 Min.

UK Last Sunday in March:

01:00––>02:00 Last Sunday in Octo-

ber: 02:00––>01:00 60 Min.

US First Sunday in April:

02:00––>03:00 Last Sunday in Octo-

ber: 02:00––>01:00 60 Min.

AUS Last Sunday in Octo-

ber: 02:00––>03:00 Last Sunday in March:

03:00––>02:00 60 Min.

AUS-

TAS First Sunday in Octo-

ber: 02:00––>03:00 Last Sunday in March:

03:00––>02:00 60 Min.

NZ First Sunday in Octo-

ber: 02:00––>03:00 Third Sunday in March:

03:00––>02:00 60 Min.

.. Customizing the month

and the day: 02:00––>

02:00 + Time zone dif-

ference

Customizing the month

and the day: 03:00––>

03:00 – Time zone dif-

ference

User-defined

(resolution in

minutes)

Note

You can specify a time zone difference ∆ between 0 and

180 minutes.

Let us assume you want to enable European summertime/

wintertime conversion:

4. Move the ’>’ cursor to ’EU’: Press or

5. Confirm ’EU’: Press OK

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LOGO! shows the following display:

>On

Off

S/W Time:

OnEU

LOGO! indicates that European S/W Time conversion is

enabled.

User-defined parameters

If none of the parameters/conversions apply to your coun-

try, you can customize these under menu item ’. .’. To do

so:

1. Confirm ’On’ once again: Press OK

2. Move the ’>’ cursor to ’. .’: Press or

3. Confirm the menu item ’. .’ : PressOK

The display shows:

MM–DD

+ : 01–01

– : 01–01

 =000min

Month (MM) and Day (DD)

Start of summertime

End of summertime

The desired time zone difference in

[min]

Cursor / solid square

Let us assume you want to configure the following parame-

ters: Start of summertime = 31st of March, end of summer-

time = 1st of November, time difference of 120 minutes.

This is how you can enter your data:

Press or to move the solid square/cursor.

Press and to change the value at the cursor posi-

tion.

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The display shows:

031. March

1. November

Time difference of 120 min

MM–DD

+ : 03–31

– : 11–01

 =120 min

Confirm all your entries with OK.

You have now customized the summertime/wintertime con-

version. The LOGO! display now shows:

>On

Off

S/W Time:

On..

LOGO! indicates that summertime/wintertime conversion is

enabled, and that user-defined parameters ( ’..’ ) have been

set.

Note

To disable summertime/wintertime conversion in this

menu, you merely confirm ’Off’ with OK.

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3.6.13 Synchronization

Time synchronization between LOGO! and the connected

expansion modules can be enabled/disabled in program-

ming mode by means of the real-time clock menu (“Clock”

menu item).

1. Switch the LOGO! to programming mode.

2. You are now in the main menu, and want to select

’Clock’: Press or

3. Confirm ’Clock’: Press OK

4. Move the ’>’ cursor to ’Sync’: Press or

5. Apply ’Sync’: Press OK

LOGO! shows the following display:

>On

Off

Sync:

Off

The current setting of the automatic synchronization func-

tion is displayed in the bottom row. The default setting is

’Off’: disabled.

Enabling synchronization

You want to enable synchronization:

1. Move the ’>’ cursor to ’On’: Press or

2. Confirm ’On’: Press OK

LOGO! shows the following display:

>On

Off

Sync:

When synchronization is enabled, LOGO! transmits the

time-of-day to the expansion modules once daily, after each

transition to RUN mode and when the TOD is changed af-

ter a ’Set Clock’ is executed or after a summertime/winter-

time conversion.

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3.7 Memory space and circuit dimensions

The size of a circuit program in LOGO! is limited by the

memory space (memory used by the blocks).

Memory areas

Program memory:

LOGO! allows only a limited number of blocks in your

circuit program.

The second limitation is based on the maximum number

of bytes a circuit program may contain. The total num-

ber of bytes used can be determined by adding up the

number of bytes used for the relevant function blocks.

Retentive memory (Rem):

In this area, LOGO! stores process variables which

need to be retentive, e.g. the hours counter value.

Blocks with optional retentivity use this memory area

only if this function is actually enabled.

Resources available in LOGO!

A circuit program in LOGO! can occupy the following maxi-

mum resources:

Bytes Blocks REM

2000 130 60

LOGO! monitors memory utilization, and offers only those

functions from the lists for which it can actually provide suf-

ficient memory space.

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Memory requirements

The table below shows an overview of the memory require-

ments for the basic and special function blocks:

Function Program

memory Rem

memory*

Basic functions

AND 12 –

AND with edge evaluation 12 –

NAND (NOT AND) 12 –

NAND with edge evaluation 12 –

OR 12 –

NOR (NOT OR) 12 –

XOR (exclusive OR) 8 –

NOT (Negation) 4 –

Special functions

Times

On-delay 8 3

Off-delay 12 3

On-/Off-delay 12 3

Retentiveon-delay 12 3

Wiping relay (pulse output) 8 3

Edge triggered wiping relay 16 4

Asynchronous pulse generator 12 3

Random generator 12 –

Stairway lighting switch 12 3

Multiple function switch 16 3

Weekly timer 20 –

Yearly timer 8 –

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Function Rem

memory*

Program

memory

Counter

Up/down counter 24 5

Hours counter 24 9

Threshold trigger 16 –

Analog

Analog threshold trigger 16 –

Analog differential trigger 16 –

Analog comparator 24 –

Analog value monitoring 20 –

Analog amplifier 12 –

Others

Latching relay 8 1

Pulse relay 12 1

Message texts 8 –

Softkey 8 2

Shift register 12 1

*: Bytes in the Rem memory area, if retentivity is enabled.

Utilization of memory areas

An indication of insufficient memory space is given, when

the system does not allow you to add a further block to

your circuit program. LOGO! offers you only the blocks for

which it can provide sufficient memory space. If LOGO! me-

mory space is insufficient to hold any further blocks you

select from a block list, the system will deny access to this

list.

If memory space is fully occupied, optimize your circuit pro-

gram, or install a second LOGO!.

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Calculating memory requirements

When calculating the memory requirements of a circuit, you

must always take all individual areas of memory into ac-

count.

Example:

Q1x

–20

No 1

No 2

No 3

Par

Par Q2

REM

Bytes

–12 REM

Bytes

The sample circuit program contains:

Block

Function Memory area

no. Bytes Blocks REM

B1 OR 12 1 –

B2 AND 12 1 –

B3 Weekly timer 20 1 –

B4 On-delay* 8 1 3

B5 Stairway lighting switch 12 1 0

B6 AND 12 1 –

Resources used by the circuit pro-

gram 76 6 3

Memory space limits in LOGO! 2000 130 60

Still available in LOGO! 1924 124 57

*: Configured with retentivity.

Hence, this circuit program fits into LOGO!.

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Indication of available memory space

LOGO! shows you the amount of free memory space.

Proceed as follows:

1. Switch the LOGO! to programming mode

(as a reminder, refer to page 48).

2. Select ’Edit’: Press or

3. Accept ’Edit’: Press OK

4. Select ’Memory?’:Press or

5. Accept ’Memory?’: Press OK

The display now shows:

Free Memory:

Byte =1924

Block= 124

Rem = 57

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4 LOGO! functions

Organization

LOGO! provides you with various elements in programming

mode. In order to maintain the overview, we have orga-

nized the elements in ’Lists’. These lists are:

Co: Connector list (Connector)

(see Chapter 4.1)

GF: List of the basic functions AND, OR, ...

(refer to Chapter 4.2)

SF: List of the special functions

(refer to Chapter 4.4)

BN: List of reusable blocks configured in the circuit

program

List contents

All lists show the elements available in LOGO!. Usually, this

includes all connectors, basic functions and special func-

tions the LOGO! knows. This includes all the blocks you

have created in LOGO! by the time you call the BN list.

If not all is shown

LOGO! does not show all elements if:

No further blocks may be added.

This is either an indication of insufficient memory space

or that the maximum number of blocks has been

reached.

A specific block’s memory space requirement would ex-

ceed the space available in LOGO!.

See Chapter 3.7.

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4.1 Constants and connectors – Co

Constants and connectors (= Co) represent inputs, outputs,

flags and constant voltage levels (constants).

Inputs:

1) Digital inputs

Digital inputs are identified with an I. The number of the

digital inputs (I1, I2, ...) corresponds with the number of the

input connectors of the LOGO! Basic and of the connected

digital modules, in the order of their installation. See the

following figure.

2) Analog inputs

The LOGO! versions LOGO! 24, LOGO! 24o,

LOGO! 12/24RC and LOGO! 12/24RCo are equipped with

the inputs I7 and I8, which can also be programmed for use

as AI1 and AI2 inputs. Signals at the I7 and I8 inputs are

interpreted as digital values, and those at the AI1 and AI2

inputs are interpreted as analog values. The inputs of a

connected analog module are numbered according to the

already existing analog inputs. Special functions whose

inputs should only be connected to analog inputs are of-

fered in programming mode when you select the input sig-

nal, i.e. the analog inputs AI1...AI8, analog flags

AM1...AM6, the block numbers of a function with analog

output or the analog outputs AQ1 and AQ2.

Outputs:

1) Digital outputs

Digital outputs are identified by the character Q. The output

numbers (Q1, Q2, ... Q16) correspond with the numbers of

the output connectors at the LOGO! Basic and with those

of the expansion modules, in their order of installation. See

the following figure.

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There are also 16 blank outputs available. These are identi-

fied with an x and can not be reused in a circuit program (in

contrast to flags, for example). The list shows all pro-

grammed blank outputs, and one blank output which is not

yet configured. A blank output, for example, is useful for the

special function “Message texts” (see Chapter 4.4.23), if

only the message text is of significance to a circuit pro-

gram.

2) Analog outputs

Analog outputs are identified by the letters AQ. Two analog

outputs are available, namely AQ1 and AQ2. You can only

set an analog value at the analog output, i.e. a function with

an analog output or analog flag AM.

L+ M I13I14I15I16

Q11

Q12

Q10

RUN/STOP

L+ M

A!3

RUN/STOP

L+ M I1 I2 I3 I4 I5 I6

Q1 Q2 Q3 Q4

Inputs

Outputs

AI1 AI2 L+ M I9 I10I11I12

RUN/STOP

M3U3AI4M4U4

Analog inputs

1 2 1

1 2

1 2 1 2 1 2 1 2

1 2 1

1 2

INPUT 2x (..10 V/..20 mA)

L+ M

Flag blocks

Flag blocks are identified by the letters M or AM . These

are virtual outputs, which output the value of their inputs.

LOGO! provides 24 digital flags M1 ... M24 and 6 analog

flags AM1 ... AM6.

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Startup flag

Flag M8 is set in the first cycle of the user program and can

thus be used in your circuit program as startup flag. This

signal is automatically reset after the circuit program has

completed its first cycle.

The M8 flag can be used in all further cycles for setting,

deletion and evaluation procedures in the same way as

other flags.

Note

The output of the flag always carries the signal of the pre-

vious program cycle. This value does not change within

the same program cycle.

Shift register bits

LOGO! provides the shift register bits S1 to S8, which are

assigned the read-only attribute in the circuit program. The

content of shift register bits can only be modified by means

of the “Shift register” special function (see Chapter 4.4.25).

Cursor keys

Up to four cursor keys are available to you, namely C ,

C, C  and C  (”C” = “Cursor”). Cursor keys are pro-

grammed for the circuit program in the same ways as other

inputs. You can set the cursor keys in the corresponding

display while the system is in RUN (see Chapter 3.6.6),

and in an active message text (ESC + Key). Cursor keys

can save switches and inputs, and allow operator control of

the circuit program.

Levels Voltage levels are designated hi and lo. A constant “1” = hi

or “0” = lo status at the block can be set by means of a per-

manent voltage level or constant value hi or lo.

Open connectors

Unused block connectors can be identified with an x.

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4.2 Basic functions list – GF

Basic functions represent simple logical elements of Bool-

ean algebra.

You can invert the inputs of individual basic functions , i.e.

the circuit program inverts a logical “1” at a relevant input to

a logical “0”; if “0” is set at the input, the program sets a

logical “1”. A programming example is found in

Chapter 3.6.3.

The GF list contains the basic function blocks you can use

for your circuit program. The following basic functions are

available:

View in the circuit

diagram View in LOGO! Name of the basic

function

Series circuit

make contact

AND

(see page 95)

AND with edge

evaluation

(see page 96)

Parallel circuit with

break contacts

NAND

(NOT AND)

(see page 97)

NAND with edge

evaluation

(see page 98)

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View in the circuit

diagram Name of the basic

function

View in LOGO!

Parallel circuit with

make contacts

(see page 99)

Series circuit with

break contacts

NOR

(NOT OR)

(see page 100)

Double change-

over contact

XOR

(exclusive OR)

(see page 101)

Break

contact

NOT

(negation, inverter)

(see page 101)

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4.2.1 AND

Circuit diagram of a series cir-

cuit with several make con-

tacts:

Symbol in LOGO!:

The output of the AND is only 1 if all inputs are 1, i.e. all

contacts are closed.

At an unused block input (x): x = 1.

Table of the AND logic

1234Q

0 0 0 0 0

00010

00100

00110

01000

01010

01100

01110

10000

10010

10100

10110

11000

11010

11100

11111

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4.2.2 AND with edge evaluation

Symbol in LOGO!:

The output of an edge triggered AND is only 1 if all inputs

are 1 and if at least one input was low in the previous cy-

cle.

At an unused block input (x): x = 1.

Timing diagram for the AND with edge evaluation

Cycle

123456789

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4.2.3 NAND (NOT AND)

Parallel circuit with multiple break

contacts in the circuit diagram: Symbol in LOGO!:

The output of the NAND is only 0 if the status at all inputs

is 1, i.e. the contacts are closed.

At an unused block input (x): x = 1.

Table of the NAND logic

1234Q

0 0 0 0 1

00011

00101

00111

01001

01011

01101

01111

10001

10011

10101

10111

11001

11011

11101

11110

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4.2.4 NAND with edge evaluation

Symbol in LOGO!:

The output status of the NAND with edge evaluation is only

1 if at least one input is 0 and if all inputs were 1 in the

previous cycle.

At an unused block input (x): x = 1.

Timing diagram for the NAND with edge evaluation

Cycle

12345678910

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4.2.5 OR

Circuit diagram of a parallel cir-

cuit with several make contacts: Symbol in LOGO!:

The output status of the OR element is only 1 if at least

one input is 1, i.e. at least one of the contacts is closed.

At an unused block input (x): x = 0.

Table of the OR logic

1234Q

0 0 0 0 0

00011

00101

00111

01001

01011

01101

01111

10001

10011

10101

10111

11001

11011

11101

11111

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4.2.6 NOR (NOT OR)

Circuit diagram of a series cir-

cuit with several break contacts: Symbol in LOGO!:

The output status of the NOR is only 1 if all inputs are 0,

i.e. if switched off. The NOR output is set to 0 when one of

the inputs is switched on (logical 1 status).

At an unused block input (x): x = 0.

Table of the NOR logic

1234Q

0 0 0 0 1

00010

00100

00110

01000

01010

01100

01110

10000

10010

10100

10110

11000

11010

11100

11110

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4.2.7 XOR (exclusive OR)

The XOR in a circuit diagram,

shown as series circuit with 2

changeover contacts:

Symbol in LOGO!:

The output status of the XOR is 1 if the inputs are not

equivalent.

At an unused block input (x): x = 0.

Table of the XOR logic

12Q

0 0 0

011

101

110

4.2.8 NOT (Negation, Inverter)

A break contact in the circuit

diagram: Symbol in LOGO!:

The output status is 1 if the input is 0. The NOT block in-

verts the input status.

Advantage of the NOT block, for example: The LOGO!

does not require break contacts. You simply use a make

contact and the NOT block to convert these into a break

contact.

Table of the NOT logic

0 1

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4.3 Basics on special functions

Because of their different input designation, you can see

right away that there is a difference between the special

functions and basic functions. SFs contain timer functions,

retentive functions and various parameter assignment op-

tions, which allow you to adapt the circuit program to suit

your own requirements.

This section provides you with a brief overview of input

designations and with some particular background informa-

tion on SFs. The SFs in particular are described in

Chapter 4.4.

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4.3.1 Designation of the inputs

Logical inputs

Here, you will find the description of the connectors you

can use to create a logical link to other blocks or to the in-

puts of the LOGO! unit.

S (Set):

A signal at input S sets the output to logical “1”.

R (Reset):

The reset input R takes priority over all other inputs and

resets the outputs.

Trg (Trigger):

This input is used to trigger the start of a function.

Cnt (Count):

This input is used for counting pulses.

Fre (Frequency):

Frequency signals to be evaluated are applied to this

input.

Dir (Direction):

This input determines the direction of count,

for example.

En (Enable):

This input enables a block function. When this input is

“0”, other signal from the block will be ignored.

Inv (Invert):

A signal at this input inverts the output signal of the

block.

Ral (Reset all):

All internal values are reset.

Connector X at SF inputs

SF inputs connected to connector x are set low. That is, the

inputs carry a ’lo’ signal.

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Parameter inputs

At some of the inputs you do not apply any signals. You

configure the relevant block values instead. Examples:

Par (Parameter):

This input will not be connected. Here, you set the rele-

vant block parameters (times, on/off thresholds etc.).

No (Cam):

This input will not be connected. Here, you configure the

time patterns.

P (Priority):

This is an open input. Here, you define priorities and

specify whether a message is to be acknowledged in

RUN.

4.3.2 Time response

Parameter T

At some of the SFs it is possible to configure a time value

T. When you preset this time, note that your input values

are based on the timebase set:

Timebase _ _ : _ _

s (seconds) seconds : 1/100 seconds

m (minutes) minutes : seconds

h (hours) hours : minutes

B1 +

T =04:10h

Setting a time T of 250 minutes:

Unit in hours h:

04:00 hours 240 minutes

00:10 hours +10 minutes

= 250 minutes

Note

Always specify a time T in  0.02 s. The time T is not de-

fined for T 0.02 s.

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Accuracy of T

Because of slight tolerances in the characteristics of elec-

tronic components, the set time T may deviate. The LOGO!

has a maximum tolerance of  0.02 %.

When 0.02 % of the time T is smaller than 0.02 seconds,

the maximum deviation is 0.02 seconds.

Example:

The maximum tolerance per hour (3600 seconds) is

 0.02 %, which is proportional to  0.72 seconds.

The maximum toloerance per minute (60 seconds) is

 0.02 seconds.

Accuracy of the timer (weekly/yearly timer)

To prevent timing inaccuracy of the real-time clock in C ver-

sions caused by this deviation, the timer value is continu-

ously compared with a high-precision timebase and cor-

rected. The resultant maximum timing inaccuracy is 5

s/day.

4.3.3 Backup of the real-time clock

Because the internal real-time clock of a LOGO! is backed

up, it continues operation after a power failure. The ambi-

ent temperature influences the backup time. At an ambient

temperature of 25°C , the typical backup time is 80 hours.

4.3.4 Retentivity

The switching states and counter values of SFs can be set

retentive. This means that current data are retained after a

power failure, and that the block resumes operation at the

break point. The timer is not reset, but resumes operation

until the time-to-go has expired, for example.

To enable this response, however, the relevant functions

must be set retentive. Two options are available:

R: The data are retained.

/: Current data are not retained (default). See the example

on Page 72.

The hours counter forms an exception, because this func-

tion is always retentive.

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4.3.5 Parameter protection

In the parameter protection settings, you can determine

whether the parameters can be displayed and edited in

LOGO! parameter assignment mode or not. Two options

are available:

+: The parameter attribute permits read/write access in pa-

rameter assignment mode (default).

–: The parameter settings are read/write protected in pa-

rameter assignment mode, and can be edited only in the

programming mode. See the example on Page 72.

4.3.6 Calculating the gain and offset of analog val-

ues

A sensor is connected to the analog input and converts a

process variable into an electrical signal. This value of sig-

nal lies within the typical range of this sensor.

LOGO! always converts the electrical signals at the analog

input into digital values from 0 to 1000.

A voltage of 0 to 10 V at input AI is transformed internally

into range of values from 0 to 1000. An input voltage ex-

ceeding 10 V is shown as internal value 1000.

Because you can not always process the range of values

from 0 to 1000 as predetermined by LOGO!, you can multi-

ply the digital values by a gain factor and then shift the zero

of the range of values (offset). This allows you to output an

analog value to the LOGO! display, which is proportional to

the actual process variable.

Parameter Minimum Maximum

Input voltage (in V) 0 ≥10

Internal value 0 1000

Gain 00.00 10.00

Offset –10000 +10000

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Mathematical rule

Actual value

Ax =

(internal value at input Ax  gain) + offset

Gain and offset calculation

The gain and offset is calculated based on the relevant high

and low values of the function.

Example 1:

The available thermocouples have the following technical

data: –30 to +70C, 0 to 10 V DC (i.e. 0 to 1000 in LOGO!).

Actual value

= (internal value  gain) + offset, thus

–30 = (0 A) + B, i.e. offset B = –30

+70 = (1000 A) –30, i.e. gain A = 0.1

Example 2:

A pressure sensor converts a pressure of 1000 mbar into a

voltage of 0 V, and a pressure of 5000 mbar into a voltage

of 10 V.

Actual value

= (internal value  gain) + offset, thus

1000 = (0 A) + B, i.e. offset B = 1000

5000 = (1000 A) +1000, i.e. gain A = 4

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Example of analog values

Process

variable Voltage

(V) Internal

value Gain Offset Value

shown

(Ax)

–30 C

0 C

+70 C

300

1000

0.1

–30

1000 mbar

3700 mbar

5000 mbar

6.75

675

1000

3700

5000

500

1000

0.01

500

1000

500

1000

500

1000

5000

10000

500

1000

0.01

500

1000

500

1000

1500

500

1000

–200

300

800

10 0

1000 10

10 –10000

–10000 –10000

0.02

0.01

0.1

A sample application is found in the description of the “Ana-

log comparator” SF on Page 165.

For further information on analog inputs,

refer to Chapter 4.1.

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4.4 Special functions list – SF

When you create your circuit program in LOGO!, you find

the special function blocks in the SF list.

You can invert the inputs of SFs individually, i.e. the circuit

program converts a logical “1” at the input into a logical “0”;

a logical “0” it converts into a logical “1”. An example of the

program code found in Chapter 3.6.3.

The table also specifies whether the relevant function can

be set retentivity (Rem). The following SFs are available:

View

inLOGO! Name of the

special function Rem

Times On-delay

(see page 113)

REM

Off-delay

(see page 117)

REM

On-/Off-delay

(see Page 119)

REM

Retentive

on-delay

(see page 121)

REM

Wiping relay (pulse output)

(see page 123) REM

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View

inLOGO! RemName of the

special function

Edge triggered

wiping relay

(see page 125)

REM

Asynchronous pulse gen-

erator

(see Page 128)

REM

Random generator

(see page 130)

Stairway lighting switch

(see page 132)

REM

Multiple function switch

(see page 135)

REM

Weekly timer

(see Page 138)

Yearly timer

(see Page 143)

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View

inLOGO! RemName of the

special function

Counter Up/down counter

(see Page 146)

REM

Hours counter

(see page 150)

REM

Fre Threshold trigger

(see Page 155)

Analog Analog threshold trigger

(see page 158)

Analog differential trigger

(see page 161)

Analog comparator

(see Page 165)

Analog value monitoring

(see Page 170)

Analog amplifier

(see Page 173)

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View

inLOGO! RemName of the

special function

Miscellaneous Latching relay

(see Page 175)

REM

Pulse relay

(see Page 176)

REM

Message texts

(see Page 179)

Par Q

Softkey

(see Page 186)

REM

Shift register

(see Page 190)

REM

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4.4.1 On-delay

Short description

The output is only set after a configurable on-delay time

has expired.

Symbol in

LOGO! Wiring Description

Input Trg You start the on-delay with a

negative edge (1 to 0 transi-

tion) at input Trg (Trigger).

Parameter T represents the time after

which the output is switched

on (0 to 1 transition of the

output signal).

Retentivity:

/ = no retentivity

R = the status is retentive.

Output Q Q is switched on when the

set time T has expired, pro-

vided Trg is still set.

Parameter T

Please note the defaults for parameter T in Chapter 4.3.2.

The time for parameter T can also be preset based on the

actual value of another, already configured function. You

can use the actual values of the following functions:

Analog comparator (actual value Ax – Ay,

see Chapter 4.4.18)

Analog threshold trigger (actual value Ax,

see Chapter 4.4.16)

Analog amplifier (actual value Ax, see Chapter 4.4.20)

and

Counter (actual value Cnt, see Chapter 4.4.13).

Select the required function by means of the block number.

The timebase is adjustable. Please note the following list-

ing:

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Valid ranges of the timebase, if T = parameter

Timebase max. value min. resolu-

tion Accuracy

s (seconds) 99:99 10 ms + 10 ms

m (minutes) 99:59 1s + 1 s

h (hours) 99:59 1 min + 1 min

The display in programming mode (example):

B12 +R

T =04:10h

Valid ranges of the timebase, if T = Actual value of an already

programmed function

Timebase max. value Meaning Accuracy

ms 99990 Number of

ms + 10 ms

s 5999 Number of s + 1 s

m 5999 Number of

min + 1 min

The display in programming mode (example):

B12 +R

TB006s

If the referenced block (B6, in the example) returns a value

that lies out of the valid range, the value is rounded up or

down to the next valid value.

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Parameter preset = Actual value of an already programmed

function How to include the actual value of an actual value of an

already programmed function:

1. Press to move the cursor to the equal sign of parame-

ter T.

T =04:10h

B12 +R

T =04:10h

B12 +R B12 +RB12 +R

Press



twice T =04:10hT =04:10h

2. Press to change the equal sign into an arrow. If it ex-

ists, the last referenced block and its timebase is shown.

B12 +R

TB006s

3. Press to move the cursor to the “B” of the shown

block, and then press to select the required block

number.

4. Press to move the cursor to the block’s timebase and

press to select the required timebase.

B12 +R

TB006m

The view in parameter assignment mode (example):

T =04:10hT =04:10

Ta =02:00h

B12

B12 TB006m

Ta =02:00h

current

time

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Timing diagram

Trg

Ta expires

The bold section of

the timing diagram is

also shown in the

on-delay icon.

Functional description

The time Ta is triggered with a 0 to 1 transition at input Trg

(Ta is the current LOGO! time).

If the status of input Trg is 1 at least for the duration of the

configured time T, the output is set to 1 on expiration of this

time (the output follows the input with on-delay).

The time is reset when the status at input Trg returns to 0

before the time T has expired.

The output is reset to 0 when the signal at input Trg is 0.

If retentivity is not set, output Q and the expired time are

reset after a power failure.

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4.4.2 Off-delay

Short description

When an on-delay is set, the output is reset when the con-

figured time has expired.

Symbol in

LOGO! Wiring Description

Input Trg You start the off-delay time

with a negative edge (1 to 0

transition) at input Trg (Trig-

ger)

Input R A signal at input R resets

the on-delay time and the

output.

Parameter T is the time that expires af-

ter which the output is

switched off (1 to 0 transi-

tion of the output signal).

Retentivity:

/ = No retentivity

R = The status is retentive.

Output Q Q is set with a signal at in-

put Trg. It holds this state

until T has expired.

Parameter T

Please note the parameter T defaults specified in

Chapter 4.3.2.

The time for parameter T can be based on the actual value

of another, already configured function. You can use the

process variables of the following functions:

Analog comparator (actual value Ax – Ay,

see Chapter 4.4.18)

Analog threshold trigger (actual value Ax,

see Chapter 4.4.16)

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Analog amplifier (actual value Ax, see Chapter 4.4.20)

and

Up/down counter (actual value Cnt,

see Chapter 4.4.13).

Select the required function by means of the block number.

The timebase is configurable. For information on valid time-

base ranges and parameter preset, refer to Chapter 4.4.1.

Timing diagram

Trg

TTa expires

RThe bold section of

the timing diagram

also appears in the

off-delay symbol.

Functional description

Output Q is set to hi immediately when the input Trg

changes to hi.

The actual time Ta in LOGO! is retriggered at the 1 to 0

transition of Trg. The output remains set. Output Q is reset

to 0 with off-delay when Ta reaches the value configured at

T (Ta=T).

The time Ta is retriggered with a one-shot at input Trg.

You can set input R (Reset) to reset the time Ta and the

output before Ta has expired.

If retentivity is not set, output Q and the expired time are

reset after a power failure.

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4.4.3 On-/Off-delay

Short description

The on-/off-delay function sets the output after the set on-

delay time has expired, and resets it upon expiration of the

off-delay time.

Symbol in

LOGO! Wiring Description

Input Trg A positive edge (0 to 1 tran-

sition) at input Trg (Trigger)

triggers the on-delay time

TH.

A negative edge (1 to 0

transition) at input Trg (Trig-

ger) triggers the off-delay

time TL.

Parameter TH is the time after which

the output is set hi (output

signal transition 0 to 1).

TL is the time after which

the output is reset ( output

signal transition 1 to 0).

Retentivity:

/ = No retentivity

R = The status is retentive.

Output Q Q is set when the config-

ured time TH has expired

and Trg is still set. It is reset

on expiration of the time TL,

if the trigger Trg has not

been set again.

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Parameters TH and TL

Note the preset values for the parameters TH and TL in

Chapter 4.3.2.

Timing diagram

Trg

THTH

Ta expires

Ta expires TL

The bold section

of the timing dia-

gram is also

shown in the on/

off-delay symbol.

Functional description

The time TH is triggered with a 0 to 1 transition at input Trg.

If the status at input Trg is 1 at least for the duration of the

time TH, the output is set to 1 on expiration of the time TH

(the output follows the input with on-delay).

The time is reset when the signal at input Trg is reset to 0

before the time TH has expired..

A 1 to 0 transition at input Trg triggers the time TL.

If the status at input Trg is 0 at least for the duration of the

signal TL, the output is set to 0 on expiration of the time TL

(the output follows the input with off-delay).

The time is reset when the signal at input Trg changes to 1

again before the time TL has expired.

If retentivity is not set, output Q and the expired time are

reset after a power failure.

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4.4.4 Retentive on-delay

Short description

A one-shot at the input triggers a configurable on-delay

time. The output is set when this time has expired.

Symbol in

LOGO! Wiring Description

Input Trg A signal at input Trg (Trig-

ger) triggers the on-delay

time.

Input R A signal at input R resets

the on-delay time and the

output.

Parameter T represents the on-delay

time for the output (output

status transition 0 to 1).

Retentivity:

/ = no retentivity

R = The status is retentive.

Output Q Q is set after the time T has

expired.

Parameter T

Note the defaults specified in Chapter 4.3.2.

The time for parameter T can be based on the process

variable of another, already programmed function. You can

use the process variables of the following functions:

Analog comparator (actual value Ax - Ay,

see Chapter 4.4.18)

Analog threshold trigger (actual value Ax,

see Chapter 4.4.16)

Analog amplifier (actual value Ax, see Chapter 4.4.20)

and

Up/down counter (actual value Cnt,

see Chapter 4.4.13).

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Select the required function by means of the block number.

The timebase is configurable. For information on valid

ranges and parameter defaults, refer to Chapter 4.4.1.

Timing diagram

Trg

Ta expires

The bold section of the timing diagram is also shown in the symbol of

the retentive on-delay.

Functional description

The 0 to 1 signal transition at input Trg triggers the current

time Ta . Output Q is set when Ta = T. A further signal at

input Trg does not influence the time Ta.

The output and the time Ta are reset with the next 1 signal

at input R.

If retentivity is not set, output Q and the expired time are

reset after a power failure.

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4.4.5 Wiping relay (pulse output)

Short description

An input pulse generates a signal with a configurable pe-

riod at the output.

Symbol in

LOGO! Wiring Description

Input Trg A signal at input Trg (Trig-

ger) triggers the time for the

wiping relay function.

Parameter The output is switched off

after the time T has expired

(output signal transition 1 to

0).

Retentivity:

/ = No retentivity

R = The status is retentive.

Output Q A signal at input Trg sets Q.

If the input signal = 1, output

Q remains set for the time

Ta.

Parameter T

Please note the information on parameter T in Chapter

4.3.2.

Timing diagram

Trg

T has not expired

Ta is expiring

The bold section of the timing dia-

gram also appears in the symbol of

the wiping relay.

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Functional description

A 0 to 1 transition at input Trg sets the output, and triggers

a time Ta during which the output remains set.

Output Q is reset to lo (pulse output) when Ta reaches the

value preset at T (Ta = T).

The output is immediately reset if there is a 1 to 0 transition

at input Trg before the specified time has expired.

If retentivity is not set, output Q and the expired time are

reset after a power failure.

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4.4.6 Edge triggered wiping relay

Short description

An input pulse generates a preset number of output pulses

with a defined pulse/pause ratio (retriggerable), after a con-

figured delay time has expired.

Symbol in

LOGO! Wiring Description

Input Trg A signal at input Trg (Trig-

ger) triggers the times for

the edge triggered wiping

relay.

Input R A signal at input R resets

the current time (Ta) and the

output.

Parameter The interpulse width TL and

the pulse width TH are confi-

gurable.

N determines the number of

pulse/pause cycles TL/TH:

Range of values: 1...9

Retentivity:

/ = No retentivity

R = The status is retentive.

Output Q Q is set after TL has ex-

pired, and reset after TH

has expired.

Parameter T

Please note the information on parameter T in

Chapter 4.3.2.

Timing diagram A

Trg

Ta is running

The bold section of the timing

diagram also appears in the

symbol of the edge triggered

wiping relay.

THTHN=1

TL=0

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Timing diagram B

Trg

N=2

TLTH

TLTHTLTH

TLTH

Timing diagram for the sample

configuration

Functional description

A 0 to 1 transition at input Trg triggers the time TL (Time

Low). After the time TL has expired, output Q is set for the

duration of TH (Time High).

If there is a further 0 to 1 transition (retriggering pulse) at

input Trg before the preset time (TL + TH) has expired, Ta is

reset and the pulse/pause cycle is restarted.

If retentivity is not set, output Q and the time are reset after

a power failure.

Preset of the Par parameter

View in programming mode (example):

B25 1+R

TL =02:00s

TH =03:00s

Protection mode and retentivity

Interpulse width

Pulse width

Press

B25 2

N=1 Number of pulse/pause cycles

(example)

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View in parameter assignment mode (example):

B25

TL =02:00s

TH =03:00s

Ta =01:15s Current pulse width TL or TH

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4.4.7 Asynchronous pulse generator

Short description

The output pulse shape can be modified by reconfiguring

the pulse/pause ratio.

Symbol in

LOGO! Wiring Description

Input En You can use input EN to set

and reset the asynchronous

pulse generator.

Input INV Input INV can be used to in-

vert the output signal of the

active asynchronous pulse

generator.

Parameter You can configure the pulse

width TH and the interpulse

width TL.

Retentivity:

/ = No retentivity

R = The status is retentive.

Output Q Q is set and reset cyclically

according to the pulse/

pause ratio TH and TL.

Timing diagram

Inv

TLTH

TLTHTL

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Functional description

You can configure the pulse/interpulse width at the TH

(Time High) and TL (Time Low) parameters .

Input Inv can be used to invert the output signal, provided

the block is enabled with a signal at input EN.

If retentivity is not set, output Q and the expired time are

reset after a power failure.

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4.4.8 Random generator

Short description

The output of the random generator is set or reset within a

configured time.

Symbol in

LOGO! Wiring Description

Input En A positive edge ( 0 to 1 tran-

sition) at input En (Enable)

triggers the on-delay time of

the random generator.

A negative edge ( 1 to 0

transition) at input En (En-

able) triggers the off-delay

time of the random genera-

tor.

Parameter The on-delay is set at ran-

dom to a value between 0 s

and TH.

The off-delay is set at ran-

dom to a value between 0 s

and TL.

Output Q Output Q is set when the

on-delay has expired and if

En is still set. It is reset

when the off-delay has ex-

pired, provided En was not

set again meanwhile.

Parameter TH and TL

Note the defaults of the TH and TL parameters listed in

Chapter 4.3.2.

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Timing diagram

T is

busy

The bold section of

the timing diagram

also appears in the

symbol of the random

generator.

Functional description

The 0 to 1 transition at input En triggers a random on-delay

time between 0 s and TH. The output is set when the on-

delay time has expired and if the signal at input En remains

hi at least for the duration of this time.

The time is reset if input En is reset before the on-delay

time has expired.

A 1 to 0 transition at input EN triggers a random on-delay

time between 0 s and TL.

The output is reset after the off-delay time has expired, pro-

vided input En remains lo at least for the duration of this

time.

The time is reset if the signal at input En changes to 1

again before the off-delay time has expired.

The time expired is reset after a power failure.

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4.4.9 Stairway lighting switch

Short description

An input edge triggers a configurable and retriggerable

time. The output is reset after this time has expired. A

warning signal can be output before this time has expired

to warn of the impending shutdown.

Symbol in

LOGO! Wiring Description

Input Trg A signal at input Trg (Trig-

ger) triggers the off-delay

time for the stairway lighting

switch.

Parameter T represents the off-delay

time of the output (output

signal transition 1 to 0).

T! determines the triggering

time for the pre-warning.

T!L determines the length of

the pre-warning signal.

Retentivity:

/ = No retentivity

R = The status is retentive.

Output Q Q is reset after the time T

has expired. A warning sig-

nal can be output before

this time has expired.

Timing diagram

Ta is busy

Trg

T!L T!

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Functional description

A 0 to 1 signal transition at input Trg sets output Q. The

next 1 to 0 transition at Trg retriggers the current time Ta,

and output Q remains set.

Output Q is reset when Ta = T. You can output a warning

signal before the off-delay time (T – T!) has expired to reset

Q for the time of the pre-warning period T!L.

A further one-shot at input Trg during Ta retriggers the time

Ta .

If retentivity is not set, output Q and the expired time are

reset after a power failure.

Preset of the Par parameter

Note the defaults specified in Chapter 4.3.2.

Note

All times must have the same timebase.

View in programming mode (example):

B9 1+R

T =60:00s Protection mode and retentivity

Off-delay time

Press

B9 2

T! =05:00s

T!L =00:10s

Start of the off-warning period

(T – T!)

Off-warning time

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View in parameter assignment mode (example):

B9 1

T =60:00s

Ta =06:00s Current value of T

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4.4.10 Multiple function switch

Short description

Switch with two different functions:

Pulse switch with off-delay

Switch (permanent lighting)

Symbol in

LOGO! Wiring Description

Input Trg A signal at input Trg (Trig-

ger) sets output Q (perma-

nent light) or resets it with

off-delay. When active, out-

put Q can be reset with a

signal at input Trg.

Input R A signal at input R resets

the current time Ta and the

output.

Parameter T represents the time after

which f the output is reset

(output signal transition

1 to 0).

TL represents the time dur-

ing which the output must

be set to enable the perma-

nent lighting function.

T! represents the preset

time for the start of the off-

warning signal.

T!L represents the length of

the off-warning period.

Retentivity:

/ = No retentivity

R = The status is retentive.

Output Q A signal at Trg switches on

output Q. Depending on the

length of the input at Trg,

the output is switched off

again or switched on per-

manently, or it is reset with a

further signal at Trg.

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Timing diagram

Ta is busy

Trg TL

T!L

Functional description

A 0 to 1 transition at input Trg sets output Q.

If output Q = 0, and input Trg is set hi at least for the dura-

tion of TL, the permanent lighting function is enabled and

output Q is set accordingly.

The off-delay T is triggered when input Trg returns to 0 be-

fore TL has expired.

Output Q is reset when Ta = T.

You can output an off-warning signal prior to the expiration

of the off-delay time (T – T!), to reset Q for the duration of

the off-warning signal T!L. A further signal at Trg always

resets T and the output Q.

If retentivity is not set, output Q and the expired time are

reset after a power failure.

Preset of the Par parameter

Note the defaults specified in Chapter 4.3.2.

Note

T, T! and T!L must all have the same timebase.

View in programming mode (example):

B5 1+R

T =60:00s

TL =10:00s

Protection mode and retentivity

Off-delay

Permanent light on-time

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Press

B5 2

T! =30:00s

T!L =20:00s

Start of the off-warning period

(T – T!)

Off-warning time

View in parameter assignment mode (example):

B5 1

T =60:00s

TL =10:00s

Ta =06:00s Current value of the time T L or T

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4.4.11 Weekly timer

Short description

The output is controlled by means of a configurable on/off

date. The function supports any combination of weekdays.

You select the active weekdays by hiding the inactive days.

Note

Because the LOGO! 24/24o does not have a real-time

clock, the weekly timer function is not available for this ver-

sion.

Symbol in

LOGO! Wiring Description

Cam

parameters

No1, No2, No3

At the Cam parameters, you

set the on- and off-times of

the weekly timer for each

Cam switch. Here you also

configure the days and the

time-of-day.

Output Q Q is set when the config-

ured cam is actuated.

Timing diagram (three examples)

Monday Wednesday

Tuesday Saturday

Friday

Thursday Sunday

Cam 13

123111

Cam No1: Daily: 06:30 h to 08:00 h

Cam No2: Tuesday: 03:10 h to 04:15 h

Cam No3: Saturday and Sunday: 16:30 h to 23:10 h

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Functional description

Each weekly timer has three cams you can use to config-

ure a time hysteresis. You specify the on- and off-times at

the Cam parameters. The weekly timer sets the output at a

certain on-time, if this is not already set.

The weekly timer resets the output at a certain off-time, if it

is not switched off already. You will cause a conflict if the

on- and off-times you set for the weekly timer are identical,

though set on different cams. In this case, cam3 takes

priority over cam2, whereas cam2 takes priority over cam1.

The switching state of the weekly timer is determined by

the status of all three cams.

Parameter assignment screen form

View of the parameter assignment screen form, for exam-

ple for Cam1:

B1 1+

D=MTWTFSS

On =06:30

Off=08:00

On-time (06.30 h)

See Showing/hiding parame-

ters – Parameter protection

mode on page 72

Off-time (08:00 h)

Block B1 Cam No1

Weekdays (daily)

WeekdayThe suffix of “D=” (Day) has the following meaning:

M : Monday

T : Tuesday

W: Wednesday

T : Thursday

F : Friday

S : Saturday

S : Sunday

The uppercase letter indicates: A weekday is selected. A

“–” means: A weekday has not been selected.

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On-/Off-times

Possible is any time between 00:00 h and 23:59 h.

––:–– means: No on-/off-times set.

Setting the weekly timer

To set the on-/off-times:

1. Move the cursor to one of the Cam parameters of the

timer (e.g. No1).

2. Press OK. LOGO! opens the Cam parameter assign-

ment screen form. The cursor is positioned on the week-

day.

3. Press and to select one or several weekdays.

4. Press to move the cursor to the first position of the

on-time.

5. Set the on-time.

Modify the value at the respective position, using the

keys and . Move to the cursor to the various posi-

tions, using the keys and . At the first position, you

can only select the value ––:––

(––:–– means: No on-/off-times set).

6. Press to move the cursor to the first position of the

off-time.

7. Set the off-time (in same way as in step 5).

8. Confirm your entries with OK.

The cursor is now positioned on the No2 parameter

(Cam2) and you can configure a further cam.

Note

For information on timer accuracy, refer to the technical

data and to Chapter 4.3.2.

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Weekly timer: Example

The output of the weekly timer switch is to be set daily from

05:30 h to 07:40 h. The output should also be set every

Tuesday from 03:10 h to 04:15 h, and at the weekends

from 16:30 h to 23:10 h.

This requires three cams.

Here are the parameter assignment screen forms of the

cams No 1, 2 and 3, based on the timing diagram shown

earlier.

Cam1 Cam No1 must set the output of the weekly timer daily from

05:30 h to 07:40 h.

B1 1+

D=MTWTFSS

On =05:30

Off=07:40

Cam2 Cam No2 must set the output of the weekly timer every

Tuesday from 03:10 h to 04:15 h.

B1 2

D=–T–––––

On =03:10

Off=04:15

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Cam3 Cam No3 must set the output of the weekly timer switch

every Saturday and Sunday from 16:30 h to 23:10 h.

B1 3

D=–––––SS

On =16:30

Off=23:10

Result

Cam

Monday Wednesday

Tuesday Saturday

Friday

Thursday Sunday

13123Q

111

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4.4.12 Yearly timer

Short description

The output is controlled by means of a configurable on/off

date.

Note

Because LOGO! 24/24o does not have a real-time clock,

the yearly timer is not available for this version.

Symbol in

LOGO! Wiring Description

Cam

parameter At the Cam parameter, you

configure the on-/off-times

for the cam of the yearly

timer.

Output Q Q is set when the config-

ured cam is actuated.

Timing diagram

MM.DD

On=02.20

Off=04.03

Off

February 20 at

00:00 h April 3

at 00:00 h

Feb. Mar. Apr.

Functional description

The yearly timer sets the output at a specific on-time, and

resets it at a specific off-time. The off-date identifies the day

on which the output is reset again. The first value identifies

the month, the second the day. For “MM” you can select a

placeholder (**), so that the on- and off-time is set for a

specific day each month.

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Sample configuration

The output of a LOGO! is to be set annually on March 1,

reset on April 4, set again on July 7, and reset again on

November 19. You need to configure two yearly timers with

corresponding on-times. The outputs are then logically

linked by means of an OR block

B1 +

MM–DD

On =03–01

Off=04–04 On-time March 1

Off-time April 4

B2 +

MM–DD

On =07–07

Off=11–19

In addition:

On-time July 7

Off-time November 19

Result On

Off

March 1

at 00:00 h

April 4

at 00:00 h

B1 B2

July 7

at 00:00 h

November 19

at 00:00 h

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Further examples

B11 +

**–DD

On =**–01

Off=**–02

On-time is the first,

and off-time the second day each month.

B12 +

**–DD

On =**–10

Off=**–20 Each month, from the 10th through

to the 20th

B13 +

**–DD

On =**–25

Off=**–05 In the next month,

from the 25th through the 5th

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4.4.13 Up/down counter

Short description

An input pulse increments or decrements an internal value,

depending on the parameter setting. The output is set or

reset when a configured threshold is reached. The direction

of count can be changed with a signal at input Dir.

Symbol in

LOGO! Wiring Description

Input R A signal at input R resets

both the internal count value

and the output to zero.

Input Cnt The function counts the 0 to

1 transitions at input Cnt. 1

to 0 transitions are not

counted.

Use

inputs I5/I6 for high-

speed counting (only

LOGO! 12/24 RC/RCo

and LOGO! 24/24o):

max. 2 kHz.

any other input or circuit

component for counting

low frequency signals

(5 Hz).

Input Dir You set the direction of

count at input Dir:

Dir = 0: Up count

Dir = 1: Down count

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Symbol in

LOGO! DescriptionWiring

Parameter On: On threshold

Range of values:

0...999999

Off: Off threshold

Range of values:

0...999999

Retentivity for internal

counter value Cnt:

/ = No retentivity

R = The status is retentive.

Output Q Q is set or reset, depending

on the current value at Cnt

and the set thresholds.

Timing diagram

Dir

On=Off=5

Cnt

Internal

count value

Cnt

Functional description

The internal counter increments (Dir = 0) or decrements

(Dir = 1) by one count with every positive edge at input Cnt.

You can use input R to reset the output and the internal

count value to ’000000’. As long as R = 1, the output is also

lo and the pulses at input Cnt are not counted.

If retentivity is not set, output Q and the expired time are

reset after a power failure.

Q is set or reset depending on the current value at Cnt and

the set thresholds. See the calculation rule below.

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Calculation rule

If the On threshold  Off threshold, then:

Q = 1, if Cnt  On

Q = 0, if Cnt < Off.

If the On threshold < Off threshold, then Q = 1,

if On  Cnt < Off.

Default on/off parameters

The default limits for the on and/or off parameters can be

derived from another, already programmed function. You

can use the actual values of the following functions:

Analog comparator (actual value Ax – Ay,

see Chapter 4.4.18)

Analog threshold trigger (actual value Ax, see Chapter

4.4.16)

Analog amplifier (actual value Ax, see Chapter 4.4.20)

and

Up/down counter (actual value Cnt).

Select the required function by means of the block number.

For information on parameter defaults,

refer to Chapter 4.4.1.

Note

The system scans the counter limit value cyclically.

Thus, if the pulse frequency at the fast inputs I5/I6 is faster

than the cycle time, the special function might not switch

until after the specified limit value is exceeded.

Example: Up to 100 pulses per cycle can be counted; 900

pulses have been counted so far. On = 950; Off = 10000.

The output is set in the next cycle, after the value has

reached 1000. (The output would not be set at all if the

value Off = 980.)

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View in programming mode (example):

B3 +R

On =001234

Off=000000 or

B3 +R

On =123456

OffB021

If the referenced block (B6, in the example) returns a value

that lies out of the valid range, the value is rounded to the

next valid value.

The view in parameter assignment mode (example):

On =001234

Off=000000

Cnt=000120

or B3

On =123456

OffB021

Cnt=000120

Current

count value

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4.4.14 Hours counter

Short description

A configured time is triggered with a signal at the monitor-

ing input. The output is set when this time has expired.

Symbol in

LOGO! Wiring Description

Input R A positive edge (0 to 1 transi-

tion) at input R resets output Q

and sets a configured value MI

at the counter for the duration

of the time-to-go (MN).

Input En En is the monitoring input.

LOGO! scans the on-time of

this input.

Input Ral A positive edge at input Ral

(Reset all) resets both the

hours counter (OT) and the

output, and sets the configured

value MI at the counter to for

the duration of the time-to-go

(MN). That is,

output Q = 0,

measured operating time

OT = 0 and

the time-to-go of the main-

tenance interval

MN = MI.

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Symbol in

LOGO! DescriptionWiring

Parameter MI: Maintenance interval to be

preset in hour units

Range of values:

0000...9999 h

OT: Total operating time

Range of values:

00000...99999 h

Q0:

When “R” is selected:

Q = 1, if MN = 0;

Q = 0, if R = 1 or Ral = 1

When “R+En” is se-

lected:

Q = 1, if MN = 0;

Q = 0, if R = 1 or Ral = 1

or En = 0.

Output Q The output is set when the

time-to-go MN = 0.

The output is reset:

When “Q0:R+En”, if

R = 1 or Ral = 1 or En = 0

When “Q0:R”, if R = 1 or

Ral = 1.

MI = Configured time interval

MN= Time-to-go

OT= Total time expired since the last hi signal at input Ral

These values are always retentive!

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Timing diagram

MI = Configured time interval

MN = Time-to-go

OT = Total time expired since the last hi signal at input Ral

Par:

Ral

MN=MI

MN=0

MI=5h

Functional description

The hours counter monitors input En. When En = 1, LOGO!

computes the time expired and the time-to-go MN. LOGO!

shows these times in parameter assignment mode. Output

Q is set when the time-to-go MN = 0.

A signal at reset input R resets output Q and sets the pre-

set value of MI at the counter for the duration of MN. The

hours counter OT continues the count.

With a signal at the reset input Ral, you reset output Q and

set the preset value of MI at the counter for the duration of

MN. The hours counter OT is reset to zero.

Depending on your configuration of parameter Q, the out-

put is either reset with a signal at input

R or Ral (”Q0:R”), or when a reset signal is set hi, or the

En signal is set lo (”Q0:R+En”).

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Viewing the MI, MN and OT values

LOGO! Basic with display unit: You can open the param-

eter assignment mode when the system is in RUN to

view the actual values of MI, MN and OT.

LOGO! Basic without display unit: In LOGO!Soft Com-

fort, you can use the Online Test to read these values

(for further information, see Chapter 7).

Limit value of OT

The value of the operating hours in OT are retained when

you reset the hours counter with a signal at input R. The

hours counter OT continues the count as long as En = 1,

irrespective of the status at the reset input R.

The counter limit of OT is 99999 h.

The hours counter stops when it reaches this value.

In programming mode, you can set the initial value of OT.

The counter starts operation at any value other than zero.

MN is automatically calculated at the START, based on the

MI and OT values

(Example: MI = 100, OT = 130, the result is MN = 70).

Preset of the Par parameter

View in programming mode:

B16 +

B16 + MI = 0100h

Q0:R

OT =00000h

Time ex-

pired

MI = 0100h

Q0:R+En

OT =00000h

MI is the configurable time interval. Its permissible range of

values lies between 0 and 9999 hours.

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View in parameter assignment mode:

B16

MI = 0100h

MN = 0017h

OT =00083h Time-to-go

Total operating hours

Time interval

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4.4.15 Threshold trigger

Short description

The output is set and reset with two configurable threshold

triggers.

Symbol in

LOGO! Wiring Description

Fre Input Fre The function counts the 0 to 1

transitions at input Fre. 1 to 0

transitions are not counted.

Use

inputs I5/I6 for high-speed

counting (only LOGO!

12/24 RC/RCo and LOGO!

24/24o): max. 2 kHz.

any other input or circuit

component for counting low

frequency signals (5 Hz).

Parameter On: On threshold

Range of values:

0000...9999

Off: Off threshold

Range of values:

0000...9999

G_T: Time interval or gate time

during which the input

pulses are measured.

Range of values:

00:05 s...99:99 s

Output Q Q is set and reset at the

thresholds.

Timing diagram

Off = 5

fa = 9 fa = 10 fa = 8 fa = 4

G_T

Fre On = 9

fa = Input frequency

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Functional description

The threshold trigger measures the signals at input Fre.

The pulses are recorded across a configurable time G_T.

Output Q is set and reset in accordance with the set thresh-

olds. See the calculation rule below.

Calculation rule

If the On threshold  Off threshold, then:

Q = 1, if fa > On

Q = 0, if fa  Off.

If the On threshold < Off threshold, then Q = 1 if

On  fa < Off.

Preset of the Par parameter

Note

The system scans the counter limit value once per interval

G_T.

View in programming mode (example):

B15 1+

On =0009

Off =0005

Parameter protection mode

On threshold

Off threshold

Press

B15 2

G_T=01:00s Time interval for pulses

(example)

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Note

The “seconds” timebase is here set as permanent default.

When you preset a time G_T of 1 s, the LOGO! returns the

current frequency in parameter fa in Hz.

View in parameter assignment mode (example):

B15

On =0009

Off =0005

fa =0010

On threshold

Off threshold

Q = 1 (fa > On)

Note

fa always represents the total pulses measured per time

unit G_T.

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4.4.16 Analog threshold trigger

Short description

The output is set and reset at two configurable thresholds.

Symbol in

LOGO! Wiring Description

Input Ax You apply the analog signal

to be analyzed at input Ax.

Use the analog inputs

AI1...AI8 (*), the analog

flags AM1...AM6, the block

number of a function with

analog output, or the analog

outputs AQ1 and AQ2.

Parameter A: Gain

Range of values:

00.00...10.00

B: Zero offset

Range of values:

10.000

On: On threshold

Range of values:

20.000

Off: Off threshold

Range of values:

20.000

p: Number of decimals

Range of values:

0, 1, 2, 3

Output Q Q is set or reset by the

threshold triggers.

* AI1...AI8: 0...10 V corresponds with 0...1000 (internal value).

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Gain and offset parameters

Please note the information on gain and offset parameters

in Chapter 4.3.6.

Parameter p (number of decimals)

Does not apply to the display of On, Off and Ax values in a

message text.

Does not apply to the comparison of On and Off values!

(The compare function ignores the decimal point.)

Timing diagram

1000

Off

Functional description

The function fetches the analog signal at input Ax.

Ax is multiplied by the value of the A (gain) parameter, and

the value at parameter B (offset) is added to product, i.e.

(Ax  gain) + offset = actual value of Ax.

Output Q is set or reset, depending on the set thresholds.

See the calculation rule below.

Calculation rule

If the On threshold  Off threshold, then:

Q = 1, if the actual value Ax > On

Q = 0, if the actual value Ax  Off.

If the On threshold < Off threshold, then Q = 1 if

On  actual value Ax < Off.

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Preset of the Par parameter

The gain and offset parameters are used to adapt the sen-

sors to the relevant application.

View in programming mode (example):

B3 1+

On =+04000

Off =+02000

Parameter protection mode

On threshold

Off threshold

Press

Decimals in the message text

B3 2

A =01.00

B =+00000

p=2 Offset

Gain

View in parameter assignment mode (example):

On =+04000

Off =+02000

Ax =+05000

On threshold

Off threshold

Q = 1 (Ax > On)

View in the message text (example):

+050.00 Ax, when p = 2

Q = 1 (Ax > On)

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4.4.17 Analog differential trigger

Short description

The output is set and reset depending on a configurable

threshold and a differential value.

Symbol in

LOGO! Wiring Description

Input Ax You apply the analog signal

to be analyzed at input Ax.

Use the analog inputs

AI1...AI8 (*), the analog

flags AM1...AM6, the block

number of a function with

analog output, or the analog

outputs AQ1 and AQ2.

Parameter A: Gain

Range of values:

00.00...10.00

B: Zero offset

Range of values:

10.000

On: On/Off threshold

Range of values:

20.000

: Differential value for

calculating the off

parameter

Range of values:

20.000

p: Number of decimals

Range of values:

0, 1, 2, 3

Output Q Q is set or reset, depending

on the threshold and differ-

ence values.

* AI1...AI8: 0...10 V corresponds with 0...1000 (internal value).

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Gain and offset parameters

Please note the information on gain and offset parameters

in Chapter 4.3.6.

Parameter p (number of decimals)

Does not apply to the display of On, Off and Ax values in a

message text.

Timing diagram A: Function with negative difference 

Off = On + 

Timing diagram B: Function with positive difference 

Off = On + 

Functional description

The function fetches the analog signal at input Ax.

Ax is multiplied by the value of the A (gain) parameter, and

the value at parameter B (offset) is added to product, i.e.

(Ax  gain) + offset = actual value of Ax.

Output Q is set or reset, depending on the set (On) thresh-

old and difference value (). The function automatically

calculates the Off parameter: Off = On + , whereby 

may be positive or negative. See the calculation rule below.

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Calculation rule

When you set a negative differential value , the On

threshold  Off threshold, and:

Q = 1, if the actual value Ax > On

Q = 0, if the actual value Ax  Off.

See the timing diagram A.

When you set a positive differential value , the On

threshold < the Off threshold, and Q = 1, if:

On  actual value Ax < Off.

See the timing diagram B.

Preset of the Par parameter

The gain and offset parameters are used to adapt the sen-

sors to the relevant application.

View in programming mode (example):

B3 1+

On =+04000

=–02000

Parameter protection mode

On/off threshold

Differential value for the on/off

threshold

Press

Decimals in the message text

B3 2

A =01.00

B =+00000

p=2 Offset

Gain

View in parameter assignment mode (example):

On =+04000

=–02000

Ax =+05000

On threshold

Differential value for the

off threshold

Q = 1 (Ax > On)

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Press

Off =+02000 Off threshold

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4.4.18 Analog comparator

Short description

The output is set and reset, depending on the difference

Ax – Ay and on two configurable thresholds.

Symbol in

LOGO! Wiring Description

Inputs Ax and

Ay You apply the analog sig-

nals whose difference you

want to analyze at the in-

puts Ax and Ay.

Use the analog inputs

AI1...AI8 (*), the analog

flags AM1...AM6, the block

number of a function with

analog output, or the analog

outputs AQ1 and AQ2.

Parameter A: Gain

Range of values:

00.00...10.00

B: Zero offset

Range of values:

10.000

On: On threshold

Range of values:

20.000

Off: Off threshold

Range of values:

20.000

p: Number of decimals

Range of values:

0, 1, 2, 3

Output Q Q is set or reset, depending

on the difference Ax – Ay

and the set thresholds..

* AI1...AI8: 0...10 V corresponds with 0...1000 (internal value).

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Gain and offset parameters

For more information on the gain and offset parameters,

refer to Chapter 4.3.6.

Parameter p (number of decimals)

Does not apply to Ax, Ay, On, Off and  values displayed

in a message text.

Does not apply to the comparison of on and off values!

(The compare function ignores the decimal point.)

Timing diagram

for Ax - Ay > 200,

if On = Off = 200

1000

Ax–Ay

1000

200

Functional description

The function fetches the analog values from the inputs Ax

and Ay.

Ax and Ay are each multiplied by the value of the A (gain)

parameter, and the value at parameter B (offset) is then

added to the relevant product, i.e.

(Ax  gain) + offset = actual value Ax or

(Ay  gain) + offset = actual value Ay.

The function forms the difference (””) between the actual

values Ax – Ay.

Output Q is set or reset, depending on difference of the

actual values Ax – Ay and the set thresholds. See the cal-

culation rule below.

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Calculation rule

If the On threshold  Off threshold, then:

Q = 1, if:

(actual value Ax – actual value Ay) > On

Q = 0, if:

(actual value Ax – actual value Ay)  Off.

If the On threshold < Off threshold, then Q = 1, if:

On  (actual value Ax – actual value Ay) < Off.

Preset of the Par parameter

The gain and offset parameters are used to adapt the sen-

sors to the relevant application.

View in programming mode:

B3 1+

On =+00000

Off =+00000

Parameter protection mode

On threshold

Off threshold

Press

Decimals in the message text

B3 2

A =00.00

B =+00000

p=0 Offset

Gain

ExampleIn a heating control system, the supply Tv and return line

temperatures Tr are to be compared, for example with a

sensor at AI2.

A control signal is to be triggered (for example ”heater

On”), when the difference between the supply and return

line temperatures is greater than 15 . The control signal is

reset when the difference is less than 5 C.

The process variable of the temperature is to be shown in

parameter assignment mode.

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The thermocouples available have the the following techni-

cal data: –30 to +70C, 0 to 10 VDC.

Application Internal mapping

–30 to +70 C = 0 to 10 V DC 0 to 1000

0C 300

 Offset = –30

Range of values:

–30 to +70 C = 100 1000

 Gain = 100/1000 = 0.1

On threshold = 15 CThreshold = 15

Off threshold = 5 CThreshold = 5

See also Chapter 4.3.6.

Configuration (example):

B3 1+

On =+00015

Off =+00005

Protection mode

On threshold

Off threshold

Press

Decimals in the message text

(if used)

B3 2

A =00.10

B =–00030

p=0 Offset

Gain

View in parameter assignment mode (example):

B3 1

On =+00015

Off =+00005 On threshold

Off threshold

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Press

B3 2

Ax =+00010

Ay =–00020

 =+00030 Q = 1 (differential value > On)

Temperature values

View in the message text (example):

Ax =+00010

Ay =–00020

Reducing the input response of the analog comparator

You can selectively delay the output of an analog compara-

tor by means of the “On-delay” and “Off-delay” special

functions. With on-delay, output Q is only set if the pulse

width of the triggering signal at input Trg ( =analog

comparator output) is longer than the on-delay time. With

off-delay, output Q is only reset if the pulse width of the trig-

gering signal at input Trg is longer than the off-delay time.

Using this method, you will obtain a virtual hysteresis and

reduce the input response to short signals.

Function block diagram

A

AI1

AI2

Analog comparator

On-delay

Off-delay

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4.4.19 Analog value monitoring

Short description

This special function saves the process variable of an ana-

log input to memory, and sets the output when the output

variable exceeds or drops below this stored value plus a

configurable offset.

Symbol in

LOGO! Wiring Description

Input En A positive edge (0 to 1 transi-

tion) at input En saves the ana-

log value at input Ax (”Aen”) to

memory and starts monitoring

of the analog range Aen  .

Input Ax You apply the analog signal to

be monitored at input Ax.

Use the analog inputs AI1...AI8

(*), the analog flags

AM1...AM6, the block number

of a function with analog out-

put, or the analog outputs AQ1

and AQ2.

Parameter A: Gain

Range of values:

00.00...10.00

B: Zero offset

Range of values: 10.000

: Difference value for the

Aen on/off threshold

Range of values: 20.000

p: Number of decimals

Range of values:

0, 1, 2, 3

Output Q Q is set/reset, depending on

the stored analog value and

the offset.

* AI1...AI8: 0...10 V corresponds with 0...1000 (internal value).

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Gain and offset parameters

For more information on gain and offset parameters, refer

to Chapter 4.3.6.

Parameter p (number of decimals)

Applies only to the Aen, Ax and  values displayed in a

message text.

Timing diagram

Aen + 

Aen – 

Aen

Functional description

A 0 to 1 transition at input En saves the value of the signal

at the analog input Ax. This saved process variable is re-

ferred to as “Aen”.

Both the analog actual values Ax and Aen are multiplied by

the value at parameter A (gain), and parameter B (offset) is

then added to the product, i.e.

(Ax  gain) + offset = Actual value Aen, when input En

changes from 0 to 1, or

(Ax  gain) + offset = Actual value Ax.

Output Q is set when the signal at input En = 1 and if the

actual value at input Ax is out of range of Aen  .

Output Q is reset, when the actual value at input Ax lies

within the range of Aen  , or when the signal at input

En changes to lo.

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Preset of the Par parameter

The gain and offset parameters are used to adapt the used

sensors to the respective application.

View in programming mode:

B3 1+

=00000 Parameter protection mode

Differential value for the

on/of f threshold

Press

Decimals in the message text

B3 2

A =00.00

B =+00000

p=0 Offset

Gain

View in parameter assignment mode (example):

=00010

Aen =–00020

Ax=+00005 Q = 1 (Ax is out of the range of

Aen  )

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4.4.20 Analog amplifier

Short description

This special function amplifies the value of an analog input

and outputs the result at an analog output.

Symbol in

LOGO! Wiring Description

Input Ax You apply the analog signal to

be amplified at input Ax.

Use the analog inputs AI1...AI8

(*), the analog flags

AM1...AM6, the block number

of a function with analog out-

put, or the analog outputs AQ1

and AQ2.

Parameter A: Gain

Range of values:

00.00...10.00

B: Zero offset

Range of values: 10.000

p: Number of decimals

Range of values:

0, 1, 2, 3

Output AQ This special function has an

analog output! This output can

only be connected with the

analog input of a function or

with an analog flag.

Range of values for AQ:

–32768...+32767

* AI1...AI8: 0...10 V corresponds with 0...1000 (internal value).

Gain and offset parameters

Please note the information on gain and offset parameters

in Chapter 4.3.6.

Parameter p (number of decimals)

Applies only to the AQ value in a message text.

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Functional description

The function fetches the analog signal of input Ax.

This value is multiplied by the value of the A (gain) parame-

ter, and parameter B (offset) is then added to the product,

i.e. (Ax  gain) + offset = actual value Ax.

The actual value Ax is output at AQ.

Preset of the Par parameter

The gain and offset parameters are used to adapt the sen-

sors to the relevant application.

View in programming mode (example):

Decimals in the message text

B3 +

A =02.50

B =–00300

p=0 Offset

Gain

View in parameter assignment mode (example):

AQ =–00250

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4.4.21 Latching relay

Short description

Input S sets output Q, input R resets output Q again.

Symbol in

LOGO! Wiring Description

Input S You set output Q with a sig-

nal at input S.

Input R You reset output Q with a

signal at input R. If S and

R = 1, the output is reset.

Parameter Retentivity:

/ = No retentivity

R = The status is retentive.

Output Q Q is set with a signal at in-

put S, and reset with a sig-

nal at input R.

Timing diagram

Switching response

A latching relay represents a simple binary element. The

output value depends on the status at the inputs and on the

previous output status. The following table shows the logic

once again:

SnRnQComment

0 0 x The status is retentive

010Reset

101Set

1 1 0 Reset (takes priority over Set)

When retentivity is enabled, the current status of the output

signal is retained after a power failure.

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4.4.22 Pulse relay

Short description

A short pulse at the input sets and resets the output.

Symbol in

LOGO! Wiring Description

Input Trg You set and reset output Q

with a signal at input Trg

(Trigger).

Input S You set output Q with a sig-

nal at input S.

Input R You reset output Q with a

signal at input R.

Parameter Selection:

RS (R input priority) or

SR (S input priority)

Retentivity:

/ = No retentivity

R = The status is retentive.

Output Q Q is set with a signal at Trg,

and reset with the next sig-

nal at Trg, if S and R = 0.

Timing diagram

Trg

The bold printed section of the

timing diagram is also shown in

the symbol for the pulse relay.

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Functional description

Output Q changes its status, i.e. the output is set or reset,

with each 0 to 1 transition at input Trg and if the inputs S

and R = 0.

The signal at input Trg does not influence the special func-

tion when S or R = 1.

You set the pulse relay with a signal at input S, i.e. the out-

put is set hi.

You reset the pulse relay with a signal at input R, i.e. the

output is set lo.

Status diagram

Par Qn–1 S R Trg Qn

* 0 0 0 0 0

*00 0 0 –>1 1**

* 0 0 1 0 0

* 0 0 1 0 –>1 0

* 0 1 0 0 1

* 0 1 0 0 –>1 1

RS 0 1 1 0 0

RS 0 1 1 0 –>1 0

SR 0 1 1 0 1

SR 0 1 1 0 –>1 1

* 1 0 0 0 1

*10 0 0 –>1 0**

* 1 0 1 0 0

* 1 0 1 0 –>1 0

* 1 1 0 0 1

* 1 1 0 0 –>1 1

RS 1 1 1 0 0

RS 1 1 1 0 –>1 0

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Par Qn

TrgRSQn–1

SR 1 1 1 0 1

SR 1 1 1 0 –>1 1

*: RS or SR

**: Triggering signal is effective, because S and R = 0.

Depending on your configuration, either input R takes prior-

ity over input S (i.e. input S is not effective when R = 1), or

vice versa (i.e. input R is not effective when S = 1).

After a power failure, the pulse relay and output Q are reset

if you have not enabled retentivity.

View in programming mode:

B29 R

Par=RS B29 R

Par=SR

Press

 or 

This special function is not available in parameter assign-

ment mode.

Note

If Trg = 0 and Par = RS, the special function “Pulse relay”

corresponds with the special function “Latching relay” (see

Chapter 4.4.21).

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4.4.23 Message texts

Short description

View of a configured message text in RUN mode.

Symbol in

LOGO! Wiring Description

Input En A 0 to 1 transition at input

En (Enable) starts the out-

put of the message text.

Input P P: Priority of the message

text

Range of values: 0...30

Quit: Acknowledgment of

the message text.

Parameter Text: Input of the message

text

Par:Parameter or actual va-

lue of another, already

programmed function

(see “Visible parame-

ters or process vari-

ables”)

Time: Display of the contin-

uously updated time-of-

day

Date: Display of the continu-

ously updated date

EnTime: Display of the time

of the 0 to 1 transition

of the signal at input En

EnDate: Display of the date

of the 0 to 1 transition

of the signal at input En

Output Q Q remains set as long as

the message text is set.

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Restriction

A maximum of 10 message text functions are available.

Functional description

With the 0 to 1 transition of the signal at input En and when

the system is in RUN, the message text you have config-

ured (process variable, text, time-of-day, date) is output to

the display.

Acknowledgment disabled (Quit = Off):

The message text is hidden when the status of the signal at

input En changes from 1 to 0.

Acknowledgment enabled (Quit = On):

When the status of the signal at input En changes from 1 to

0, the message text is output until it is acknowledged with

OK. When En = 1, you can not acknowledge the message

text.

When multiple message text functions are triggered with

En=1, the message text that has the highest priority is

shown (0 = lowest, 30 = highest). This also means, that a

newly activated message text is shown only if its priority is

higher than that of previously activated message texts.

After a message text is disabled or acknowledged, the

function automatically shows the previously active mes-

sage text that takes the highest priority.

You can change the view and the message texts by press-

ing the keys and .

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ExampleThis is how tow message texts could be shown:

Display field of the LOGO! in RUN mode

Date and current time-of-day

(only for versions with real-time

clock).

2003-01-27

Mo 09:00

Key

Motor 2

3000

hours

MAINTENANCE! Example: Message text with

priority 10

Motor 5

STOP AT

10:12

!!Action!! Example: Message text with

priority 30

Press

Input P configuration

To configure the priority and the acknowledgment (pro-

gramming mode):

Priority

Status of the acknowledgment

B33 +

Priority

Quit=Off

“+” means: The parameters and actual

values in an active message text can be

edited

1. Increase the priority to 1: Cursor on ’0’ +

2. Change to ’Quit’: Press

3. Enable ’Quit’: Press or

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LOGO! shows:

B33 +

Priority

Quit=On Priority 1

Status of acknowledgment ’On’

4. Confirm the entries with OK

Visible parameters or process variables

The following parameter or process variables can be dis-

played in a message text:

Special function Parameter or process vari-

able visible in a message

text

Times

On-delay T, Ta

Off-delay T, Ta

On-/Off-delay Ta, TH, TL

Retentive on-delay T, Ta

Wiping relay

(pulse output) T, Ta

Edge triggered

wiping relay Ta, TH, TL

Asynchronous pulse generator Ta, TH, TL

Random generator TH, TL

Stairway lighting switch Ta, T, T!, T!L

Multiple function switch Ta, T, TL, T!, T!L

Weekly timer 3*on/off/day

Yearly timer On, Off

Counter

Up/down counter Cnt, On, Off

Hours counter MI, Q, OT

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Special function Parameter or process vari-

able visible in a message

text

Threshold trigger fa, On, Off, G_T

Analog

Analog threshold trigger On, Off, A, B, Ax

Analog differential trigger On, , A, B, Ax, Off

Analog comparator On, Off, A, B, Ax, Ay, A

Analog value monitoring , A, B, Ax, Aen

Analog amplifier A, B, Ax

Miscellaneous

Latching relay –

Pulse relay –

Message texts –

Softkey On/Off

Shift register –

Changing parameters in the active message text

You can allow editing of parameter and process variables in

an active message text by entering a “+” in the first line. To

prevent changes, enter a “–” sign.

When the message text is active, press ESC to select the

editing mode.

Note

You must keep the ESC key pressed at least for one sec-

ond.

Press and to select the relevant line (you can only se-

lect lines that contain parameters). Press OK to change the

parameter. Use the keys , , and .

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Confirm your changes with OK. You can now edit further

parameters in the message text (if any exist). Press ESC to

exit editing mode.

Key input simulation in the active message text

You can enable the four cursor keys C , C , C  and

C in an active message text by pressing ESC plus the

relevant cursor key.

Preset of the Par parameter

To configure the message text (programming mode):

Parameter assignment

screen form for Par

Press to select a line for the message text.

Press and to select the relevant type of message text

(Text, Par, Time...). Confirm with OK.

Further entries are required when “Text” or “Par” are se-

lected:

Press and to select the letter to be displayed in the

text. To move the cursor from one position to the other,

press and .

The list of available characters is here the same as for the

circuit program name. The character set is found in Chap-

ter 3.6.4.

Press OK to confirm your changes, and press ESC to exit

the editing mode.

To output a parameter (e.g. a process variable or function

value) as message text, select the relevant line with and

then press :

Par

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Press OK to open the editing mode:

B01>T

Press and to select the blocks to be displayed and the

corresponding parameters.

Press and to select the block or parameter you want to

view.

Select the parameter by pressing OK.

Press ESC to exit the parameter assignment mode and to

apply your changes.

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4.4.24 Softkey

Short description

This special function has the effect of a mechanical push-

button or switch.

Symbol in

LOGO! Wiring Description

Par QInput En Output Q is set with a 0 to 1

transition of the signal at in-

put En (Enable), and if

’Switch=On’ was confirmed

in parameter assignment

mode.

Parameter Programming mode:

Selecting the function for

pushbutton action for the

duration of one cycle, or for

switching action.

Start: On or off state, initial-

ized at the first start of

the program if retentiv-

ity is disabled.

Retentivity:

/ = No retentivity

R = The status is retentive.

Parameter assignment

mode (RUN mode):

Switch: Switches the mo-

mentary pushbutton or

switch on or off.

Output Q Switches on if En=1 and

Switch=On was confirmed

with OK.

Factory setting

The default setting at ’Par’ is ’Momentary pushbutton’

action.

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Timing diagram

Switch

Functional description

In parameter assignment mode, the output is set with a sig-

nal at input En, if the ’’Switch’ parameter is set to ’On’ and

confirmed with OK. Whether the function was configured

for pushbutton or switching action is here of no concern.

The output is reset to ’0’ in the following three cases:

After a 0 to 1 transition at input En.

When the function was configured for momentary push-

button action, and one cycle has expired since it was

switched on.

When the position ’Off’ was selected at the ’Switch’ pa-

rameter and confirmed with OK in parameter assign-

ment mode.

If retentivity is not set, output Q is initialized after a power

failure according to your configuration at the “Start” param-

eter.

Preset of the Par parameter

View in programming mode (example):

1. Select the ’Softkey’ function.

2. Select input En and confirm with OK. The cursor is now

positioned below ’Par’.

3. Change to the input mode of ’Par’: Confirm with OK

(the cursor is now positioned to ’On’)

B33 +/

On=

Start=On The function is set for ’momentary

pushbutton’ action

The status is not retentive

Q is set in the first cycle after the

program start

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To change ’Par’ to ’Switch’ action and the initialization sta-

tus after the program start:

4. To select ’Momentary pushbutton’ or ’Switch’ action:

Press or

B33 +/

On/Off

Start=On ’Switch’ function

The status is not retentive

Q is set in the first cycle after the

program start

5. To change to the start state: Press or

6. To change the start state: Press or

B33 +/

On/Off

Start=Off ’Switch’function

The status is not retentive

Q is reset in the init cycle after the

program start

7. Confirm your entries with OK

View in parameter assignment mode (example):

Here, you can set or reset the ’Switch’ parameter (On/Off).

When in RUN, the LOGO! shows the following display:

B33

Switch=Off The pushbutton/switch is here

switched off

Let us assume you want to set ’Switch’ (On).

1. Change to the editing mode: Confirm with OK

(the cursor is now positioned on ’Off’)

2. To change from ’Off’ to ’On’: Press or

3. Confirm your entries with Press OK

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B33

Switch=On The momentary pushbutton/switch

is here switched on

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4.4.25 Shift register

Short description

You can use the shift register function to read the value of

an input and to shift its bits left or right. The output value

corresponds with the configured shift register bit. The shift-

ing direction can be changed at a special input.

Symbol in

LOGO! Wiring Description

Input In Input read at the start of the

function.

Input Trg A positive edge (0 to 1 tran-

sition) at input Trg (Trigger)

starts the special function.

1 to 0 transitions are irrele-

vant.

Input Dir The signal at input Dir de-

termines the shifting direc-

tion for the shift register bits

S1...S8 an:

Dir = 0: Shift up (S1 >> S8)

Dir = 1: Shift down (S8 >>

S1)

Parameter Shift register bit that deter-

mines the value at output Q.

Possible settings:

S1 ... S8

Retentivity:

/ = No retentivity

R = The status is retentive.

Output Q The output value corre-

sponds with the configured

shift register bit.

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Functional description

The function reads the value at input In with a positive edge

(0 to 1 transition) at input Trg (Trigger).

This value is applied to shift register bit S1 or S8, depend-

ing on the shifting direction:

Shift up: The value at input In is set at S1; the previous

value at S1 is shifted to S2; the previous value at S2 is

shifted to S3 etc.

Shift down: The value at input In is set at S8; the pre-

vious value at S8 is shifted to S7; the previous value at

S7 is shifted to S6 etc.

Output Q returns the value of the configured shift register

bit.

If retentivity is disabled, the shift function restarts at S1 or

S8 after a power failure. When enabled, retentivity always

applies to all shift register bits.

Note

The special function shift register can be used only once in

the circuit program.

Timing diagram

Trg

Dir

S1 0101101

S2 0010111

S3 0001010

S4 0000101

S5 1000010

S6 1100000

S7 0110000

S8 0011001

S4 = Q (example)

Shift up Shift down

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Preset of the Par parameter

View in programming mode:

Preset

Retentivity enabled

B3 R

Q=S8

Press

B3 R

Q=S7

etc. You can select S8...S1.

This special function is not available in parameter assign-

ment mode.

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5 Configuring LOGO!

When speaking of ’parameter assignment’, we refer to the

configuration of the block parameters. You can set delay

times for time functions, the switching times of the timers,

the counter threshold value, the monitoring interval of an

hours counter and the on and off thresholds of the trigger.

You can configure the parameters

In programming mode

In parameter assignment mode

In programming mode, the author of the circuit program

also sets the parameters.

We have added the parameter assignment mode to allow

the editing of parameters without having to modify the cir-

cuit program. This feature is available for the user to edit

parameters, without having to change to programming

mode, for example. The advantage: The circuit program

remains protected, but can be adapted by the user to meet

specific requirements.

Note

In parameter assignment mode, the LOGO! continues exe-

cution of the circuit program.

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5.1 Selecting parameter assignment mode

Press ESC to change from RUN to parameter assignment

mode:

2003-01-27

Mo 09:00 Press

ESC

...

Note

The following applies to earlier device versions up to

0BA2:

You open parameter assignment mode by pressing

ESC+OK.

LOGO! changes to parameter assignment mode and opens

the parameter assignment menu:

>Stop

Set Param

Set Clock

Prg Name

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Description of the four menu items of the parameter assignment

Stop

You select this command to stop your circuit program and

thus change to the main menu of programming mode. To

do so:

1. To move the ’>’ cursor to ’Stop’: Press or

2. To confirm ’Stop’: Press OK

Stop Prg

>No

Yes

3. To move the ’>’ cursor to ’Yes’: Press or

4. To confirm ’Yes’: Press OK

LOGO! shows the main menu of the programming mode:

>Program..

Card..

Clock..

Start

Set Param

For information on the various parameters, refer to the

Chapters 5.1.1 to 5.1.3.

Set clock

The ’Set Clock’ command is only executed if your LOGO! is

equipped with a real-time clock (LOGO!..C). You set the

real-time clock of LOGO! by means of the ’Set Clock’ com-

mand. For details, refer to Chapter 5.2.

Prg Name

This menu command only allows you to read the name of

your circuit program. It is not possible to modify this name

in parameter assignment mode. (see Chapter 3.6.4.)

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5.1.1 Parameters

Note

In the following discourse on parameters, we presume that

the respective default parameter protection mode (”+”) has

been maintained. This is prerequisite for viewing and edit-

ing parameter in the parameter assignment mode!

See Chapter 4.3.5 and the example on Page 72.

Parameters are, for example:

The delay times of a timer relay.

The switching times (cams) of a timer switch.

Counter thresholds

The monitoring time for hour counters

The trigger thresholds.

Each one of the parameters is identified by its block num-

ber (Bx) and the shortname of the parameter. Examples:

T: ...is a configurable time.

MI: ...is a configurable time interval.

Note

LOGO!Soft Comfort also allows you to assign names to

blocks (for more information, refer to Chapter 7).

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5.1.2 Selecting the parameters

To select a parameter:

1. On the parameter assignment menu, select

’Set Param’: Press

Stop

>Set Param

Set Clock

Prg Name

2. Confirm with OK.

LOGO! shows the first parameter. If no parameter can

be set, you can press ESC to return to the parameter

assignment menu.

B9 1 Display number for functions with

several displays

The value set at pa-

rameter T (Time)

The current time in the

LOGO!

Press ESC

No Param No parameters for editing:

Press ESC to return to the paramet

ment menu

T =60:00s

Ta =06:00s

Block number

3. Now, select the desired parameter:

Press or .

4. Select the parameter you want to edit, and press OK.

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5.1.3 Modifying parameters

You first select the parameter you want to edit (see Chapter

5.1.2).

You change the value of the parameter in the same way as

you did in programming mode:

1. Move the cursor to the point at which you want to make

the change: Press or

2. To change this value: Press or

3. To apply the value: OK

Ta =06:00s

Move: Press  or 

Done: OK

T =80:00s

Change: Press  or 

Note

Alongside with a change of the time parameters when the

system is in RUN, you can also change the timebase (s =

seconds, m = minutes, h = hours). This does not apply if

the time parameter represents the result of another func-

tion (for an example, see Chapter 4.4.1). In this case you

can neither change the value nor the timebase.

The current time is reset to zero when you change the

timebase.

Current value of a time T

View of a time T in parameter assignment mode:

Ta =06:00s

T =80:00s Configured time T

Current time Ta

You can change the configured time T.

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Current timer value

View of a timer cam in parameter assignment mode:

B1 1

Off=10:00

D=M–W–F––

On =09:00

You can change the on/off times and the day.

Current value of a counter

View of a counter parameter in parameter assignment

mode:

On =001234

Off=000000

Cnt=000120

or B3

On =123456

OffB021

Cnt=000120

Current

count value

You can change the on/off threshold. This does not apply if

the on or off threshold represents the result of another

function (in the example, this is B21, see Chapter 4.4.13).

Current value of an hour counter

View of an hour counter parameter in parameter assign-

ment mode:

B16

MI = 0100h

MN = 0017h

OT =00083h Time-to-go

Total operating hours

Time interval

You can edit the configured time interval MI.

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Current value of a threshold trigger

View of the parameter of a threshold trigger in parameter

assignment mode:

B15

On =0009

Off =0005

fa =0010

On threshold

Off threshold

Process variable

You can change the on/off threshold.

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5.2 Setting the time-of-day and date

(LOGO! ... C)

You can set the TOD and the date

In parameter assignment mode

In programming mode.

To set the TOD and the date in parameter assignment mode:

1. Select parameter assignment mode. (see Chapter 5.1.)

2. On the parameter menu, select ’Set Clock’

(Press or ), and then press OK.

Set Clock

Mo 15:30

YYYY-MM-DD

2003-01-27

The cursor is positioned

on the weekday.

3. Select the day of the week: Press or

4. Move the cursor to the next position: Press or

5. To change the value: Press or

6. To set the correct TOD, repeat steps 4 and 5.

7. To set the correct date, repeat steps 4 and 5

8. To confirm your entries: Press OK

To set the TOD and the date in programming mode:

1. Select programming mode (ESC / >Stop). (see Chapter

3.6.1.)

2. On the main menu, select ’Clock..’ (Press or ),

and then press OK.

3. Go to the clock menu, and select ’Set Clock’

(Press or ), and the press OK.

You can now set the weekday and the time as described

earlier (as of step 3.).

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6 LOGO! program module (card)

LOGO! allows you to store only one circuit program in its

memory. If you want to modify the circuit program or create

a further one without deleting the first, you must archive it

somewhere. One of the options is to use a program mod-

ule/card.

The circuit program stored in LOGO! can be copied to a

program module (card). You can then insert the program

module/card in another LOGO! to copy the circuit program.

using the program module (card), you can:

Archiving circuit programs

Reproducing circuit programs

Send circuit programs by mail

Write and test your circuit program at the office, and

then transfer it to a LOGO! in the switching cabinet.

LOGO! is supplied with a hood. The program module (card)

is supplied separately.

Note

You do not need a module to backup the circuit program in

your LOGO!.

The LOGO! circuit program is automatically stored in non-

volatile memory when you exit the programming mode.

We shall now introduce the program module (Card) you

can order for LOGO! The card can backup all data in the

LOGO! circuit program memory.

The order number is found in the appendix.

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Compatibility

... to current versions (0BA4 devices):

Data written to the program module (card) in a 0BA4 ver-

sion can be read in all other 0BA4 versions.

... to earlier versions (0BA0 to 0BA3 devices):

A program module (card) that contains data written in ear-

lier versions (0BA0...0BA3 devices) can not be used in

LOGO! devices of the 0BA4 generation. When the LOGO!

system detects such an ’old’ program module (card), the

message “Unknown Card / Press ESC” is output to the dis-

play.

Vice versa, an 0BA4 program module (card) can not be

used in LOGO! devices of the 0BA0...0BA3 family.

Upward compatibility of circuit programs

Circuit programs written for the previous versions

0BA0...0BA3 can only be applied in 0BA4 units by means

of LOGO!Soft Comfort.

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6.1 Security function (CopyProtect)

We principally distinguish between program modules (card)

with and without circuit program/copy protection.

Unprotected program module (card)

You can edit circuit programs without restrictions, and ex-

change data between the program module (Card) and the

device.

Protected program module (card)

A circuit program is protected when it is transferred from a

protected program module (card) to the LOGO!.

To execute this circuit program in LOGO!, the protected

program module (card) must remain inserted during RUN,

i.e. the circuit program stored on the program module

(card) can not be copied to other LOGO! devices.

Over and above that, a protected circuit program is write–

protected.

A circuit program with password protection is no longer

protected after the correct password has been entered, i.e.

you can then edit the program and remove the module.

Note

You need to assign a password when you create the circuit

program for a protected module (card) to be able to edit it

at a later time (see Chapter 3.6.5).

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Correlation between the password and the protective function

Password Protec-

tion Editing Copying Deleting

– – Yes Yes Yes

Yes – Yes, with

password Yes Yes, with

password

–Yes No No Yes

Yes Yes Yes, with

password Yes, with

password

Assigning a security function

To assign a circuit program and copy protection function to

the program module (card), open the programming mode

and select “Card”.

1. Switch the LOGO! to programming mode (ESC / >Stop).

2. The main menu opens. To select the ’Card’ command:

Press or

3. To apply you entry in ’Card’: Press OK

4. Move the ’>’ cursor to ’CopyProtect’: Press or

5. To apply ’CopyProtect’: Press OK

LOGO! shows the following display:

>No

Yes

CopyProtect:

The current protection setting is shown in the bottom line.

This function is disabled by default (”No“: disabled).

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Enabling the security function

To set the security function:

1. Move the ’>’ cursor to ’Yes’: Press or

2. Confirm ’Yes’: Press OK

LOGO! shows the following display:

>No

Yes

CopyProtect:

Yes

Note

This only generates a circuit program and copy protection

for the program module (card); the circuit program itself

must be copied separately from the LOGO! to the program

module (card) (can also be done initially).

You can always change the “No” status (security function

disabled) to “Yes” (security function enabled).

A status change from “Yes” (security function enabled) to

“No” (security function disabled) is only possible if the pro-

gram module (card) does not contain a circuit program.

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6.2 Inserting and removing the program

module (card)

When you remove a program module (card) with circuit

program and copy protection attribute, note the following:

The circuit program stored on the program module (card)

can only be executed if the card remains inserted during

system runtime.

After you have removed the program module (card),

LOGO! outputs the message’No Program’. A removal of

the program module (card) during RUN will lead to imper-

missible operating states.

Always heed the following warning:

!Warning

Do not touch the open slot of the program module (card)

neither with your fingers, nor with a metallic or conductive

object.

The program module (card) socket may be under voltage if

the polarity is reversed at L1 and N by accident.

The program module (card) may only be removed by quali-

fied personnel.

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Removing the program module (card)

To remove the program module (card):

Carefully insert a screwdriver into the groove on the upper

end of the program module (card) and lever the module

partially out of the slot.

You can now remove the program module (card).

Inserting a program module (card)

The entry of the program module (card) slot is chamfered

on its bottom right. The edge of the program module (card)

is chamfered accordingly. This encoding prevents you from

inserting the program module (card) the wrong way round.

Insert the program module (card) into the slot and push it in

until it engages.

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6.3 Copying data from the LOGO! to the pro-

gram module (card)

To copy the circuit program to the program module (card):

1. Insert the program module (card) into the slot.

2. Switch the LOGO! to programming mode (ESC / >Stop).

>Program..

Card..

Clock..

Start

LOGO! main menu

3. The main menu opens. To select the ’Card’ command:

Press or

4. Press OK. The transfer menu opens.

> Card

Card

CopyProtect = LOGO!

5. Move the ’>’ cursor to ’LOGO  Card’ (if required)

Press or

6. Press OK.

LOGO! now copies the circuit program to the program mod-

ule (card).

When LOGO! has finished copying, it automatically returns

you to the main menu:

>Program..

Card..

Clock..

Start

The circuit program backup is now stored on your program

module (card) and you can remove the card. Do not forget

to replace the cap.

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If power fails while LOGO! is copying the circuit program,

repeat the process after Power On.

Note

The password X of a protected circuit program in LOGO!

also applies to the copied program version on your pro-

gram module (card).

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6.4 Copying data from the program module

(card) to LOGO!

You have a program module (card) that contains your cir-

cuit program. There are two ways to copy it to LOGO!:

Automatically during the startup of LOGO!

(POWER ON) or

by means of the “Card” menu of LOGO!.

Note

If the program on the module/card is protected with the

password X, the copied program in the LOGO! is also pro-

tected with the same password.

Automatic copying during the startup of LOGO!

Proceed as follows:

1. Switch off the power supply to the LOGO!

(POWER OFF)

2. Remove the slot cover.

3. Insert the program module/card into the relevant slot.

4. Switch on the power supply to the LOGO!

LOGO! copies the program from the program module/card

to LOGO!. When LOGO! has finished copying, it opens the

main menu:

>Program..

Card..

Clock..

Start

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Note

Before you switch the LOGO! to RUN, you must ensure

that the system you are controlling with LOGO! does not

represent a source of hazard.

1. Move the ’>’ cursor to ’Start’: Press or

2. Press OK.

Copying by means of the “Card”menu

For information on the replacement of a program module

(card), also note Chapter 6.2.

To copy a program from the program module (card) to

LOGO!:

1. Insert the program module (card)

2. Switch the LOGO! to programming mode (ESC / >Stop).

>Program..

Card..

Clock..

Start

3. Move the ’>’ cursor to ’Card’: Press or

4. Press OK. The transfer menu opens.

5. Move the ’>’ cursor to ’Card  LOGO’:

Press or

= LOGO!

Card

>Card

CopyProtect

6. Press OK.

LOGO! copies the circuit program from the program mod-

ule (card) to LOGO!. When LOGO! has finished copying, it

automatically returns to the main menu.

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7 LOGO! Software

LOGO!Soft Comfort is available as a programming pack-

age for the PC. This software provides many features, for

example:

A graphic interface for offline creation of your circuit pro-

gram by means of Ladder Diagram (contact chart / cir-

cuit diagram) or Function Block Diagram (function chart)

Simulation of your circuit program on the PC

Generating and printing of an overview chart for the cir-

cuit program

Saving a backup of the circuit program on the hard drive

or other media

Comparing circuit programs

Easy configuration of blocks

Transferring the circuit program

– from the LOGO! to the PC and

– from the PC to LOGO!

Reading the values of the hour counter

Setting the TOD

Summertime/wintertime conversion

Online test: Display of status changes and process vari-

ables of LOGO! in RUN mode:

– Status of a digital I/O, flags, shift register bits and

cursor keys

– The values of all analog I/Os and flags

– The results of all blocks

– The current values (including the times) of selected

blocks

Stopping circuit program execution via the PC (STOP).

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The LOGO! alternative

As you can see, LOGO!Soft Comfort represents an alterna-

tive to conventional engineering methods:

1. You start by developing the circuit program on your

desktop.

2. You simulate the circuit program on your computer and

verify its functions, before you actually implement it in

your system.

3. You can add comments to the circuit program and

create hardcopies.

4. You save a copy of your circuit program to the file sys-

tem on your PC, to make it directly available for any

modifications.

5. It takes only a few key actions to download the circuit

program to LOGO!.

LOGO!Soft Comfort

LOGO!Soft Comfort allows you the efficient, easy and con-

cise creation of your circuit programs on the PC (”Wiring by

means of Softkey“). After you have created the circuit pro-

gram, you can either let the system decide which LOGO!

version it requires for your program, or predetermine the

relevant LOGO! version for the circuit program.

Particularly user-friendly functions are;

Offline program simulation

Simultaneous display of the status of several special

functions

Extensive options of circuit program documentation

Display of the states and process variables of LOGO! in

RUN mode

a comprehensive Online Help.

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LOGO!Soft Comfort runs under Windows 95/98,

Windows NT 4.0, Windows Me, Windows 2000,

Windows XP, Linuxand Mac OS X. LOGO!Soft Com-

fort is capable of client/server operation and offers you a

high degree of freedom and comfort for creating your circuit

program.

LOGO!Soft Comfort V4.0

This is the current version of LOGO!Soft Comfort. You will

find all the functions and the functionality of the devices

described in this manual in the version 4.0 and later.

Updating LOGO!Soft Comfort versions V1.0 up to V3.0

The update can only be installed for the full version of

LOGO!Soft Comfort V1.0, V2.0 or V3.0.

order numbers are found in Appendix E.

Updates and info

You can download demo versions of the software free of

charge from the Internet address specified in the preface.

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7.1 Connecting the LOGO! to a PC

Connecting the PC cable

To connect the LOGO! to a PC, you need the LOGO! PC

cable (order number is found in Appendix E).

Remove the cap or program module (card) from your

LOGO! and connect the cable to this socket. Connect the

other end of the cable to the serial port of your PC.

Connecting the PC cable to the USB port

If your PC is only equipped with a USB interface (Universal

Serial Bus), you will need a converter and a device driver to

connect the LOGO! cable to this port. Follow the instruc-

tions on the screen when you install the driver for the con-

verter.Make sure you specify the correct Windows OS ver-

sion when you select the driver.

Switching LOGO! to PCLOGO mode

1. Switch the LOGO! with/without display to STOP from

your PC (refer to the LOGO!Soft Comfort Online Help),

or select the ESC / >Stop command on a device with

display and confirm the entry with ’Yes’.

When LOGO! is in STOP and online with the PC, the fol-

lowing PC commands are accepted:

Switch LOGO! to RUN

Read/write the circuit program

Read/write the summertime/wintertime

2. When you start the upload/download in STOP, the fol-

lowing display appears automatically:

PC= LOGO!

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Note

Earlier versions up to 0BA3 with/without display are auto-

matically switched to PCLOGO mode as follows:

1. Switch off the power supply to the LOGO!.

2. Remove the cover or the program module (card) and

connect the cable to this socket.

3. Switch on power.

LOGO! switches automatically to PC  LOGO mode.

The PC can now access the LOGO! For information on

this function, refer to the LOGO!Soft Comfort Online Help.

For more information on LOGO! versions without display,

refer to Appendix C.

Closing the PCLOGO mode

When the data transfer is completed, the connection to the

PC is shut down automatically.

Note

If the circuit program created with LOGO!Soft Comfort is

password protected, both the circuit program and the

password are downloaded to LOGO!. The password

prompt is enabled at the end of the data transfer.

The upload of a password protected program created in

LOGO! is only possible after the correct password is en-

tered in LOGO!Soft Comfort.

LOGO! Software

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LOGO! Software

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8 Applications

We have provided a small collection of applications in this

manual to give you an impression of the versatility of

LOGO!. For these examples we have recorded once again

the original solution of the circuit diagram, and compared it

with the LOGO! solutions.

You can find solutions for the following tasks: Page

Stairway or corridor lighting system 223

Automatic door 227

Ventilation system 234

Factory gate 239

Central controlling and monitoring of several

factory gates 243

Luminous rows 247

Service water pump 251

Further applications 255

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222

Note

LOGO! applications are available to all our customers free

of charge. The examples provided are noncommittal, serve

as general information about the fields of application for

LOGO!, and may be different to user-specific solutions.

The user operates the system at his own responsibility. We

refer to the relevant national standards and system-related

installation regulations.

Although you have four inputs available for logic opera-

tions (basic functions, see Chapter 4.2), the following fig-

ures will only show a maximum of three inputs for reasons

of clarity. You program this fourth input and assign parame-

ters just like the other three inputs.

Errors can not be ruled out, and the right to make changes

is reserved.

These application and tips for further applications are also

found on the Internet under the URL specified earlier in the

preface.

Applications

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8.1 Stairway or corridor lighting

8.1.1 Requirements for a stairway lighting system

The basic requirements for a stairway lighting system are

as follows:

When someone is using the stairway, the lighting should

be switched on.

If no-one is in the stairway, the lights should be switched

off in order to save energy.

8.1.2 Previous solution

The two conventional options for switching the lights:

With a pulse relay

With an automatic stairway lighting switch

The wiring of both these lighting systems is identical.

ÎÎÎ

Lights

Push-

buttons

Distribution with

pulse relay

automatic

stairway

lighting switch

Distribution box

Components used

Momentary switches

Automatic stairway lighting switch or pulse relay

Applications

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Lighting system with pulse relay

Function of a lighting system with pulse relay:

Press any pushbutton: The lighting is switched on

Press any of the pushbuttons once again: The lighting is

switched off.

Disadvantage: People often forget to switch off the lights.

Lighting system with an automatic stairway lighting switch

Function of a lighting system with automatic stairway light-

ing switch:

Press any pushbutton: The lighting is switched on

The lights are switched off automatically when the pre-

set time has expired.

Disadvantage: The lights can not be switched on for a lon-

ger period of time (e.g. when cleaning the stairway). The

switch for permanent lighting is usually located on the auto-

matic stairway lighting switch and may be difficult or impos-

sible to access.

8.1.3 Lighting system with LOGO!

A LOGO! system allows you to replace the automatic

stairway lighting switch or the pulse relay. You can also im-

plement both functions (timed off-delay and pulse relay) in

a single unit. What is more, you can incorporate extra func-

tions without making any alterations to the wiring. Here are

some examples:

Pulse relay with LOGO!

Automatic stairway lighting switch with LOGO!

Multiple function switch with LOGO!

– Switch light on

– Switch on permanent lighting

– Switch light off

Applications

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Wiring of a lighting system with LOGO! 230RC

ÏÏ

Lamps

Switches

L1N I1 I3I6I7I8

Q1 Q2 Q3 Q4

I4 I5I1 I2 I3I1 I2 I3

The external wiring of a lighting system with a LOGO! is no

different than it is for a conventional stairway and corridor

lighting system. Only the automatic stairway lighting switch/

pulse relay is replaced. Supplementary functions are en-

tered directly in LOGO!.

Pulse relay with LOGO!

I1Switch: Q1

Lamps

Output Q1 is toggled with a pulse signal at input I1.

Automatic stairway lighting switch with LOGO!

Momentary

switch: Q1

Lights

06:00m

Output Q1 is set for the duration of 6 minutes with a pulse

signal at input I1.

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Multiple function switch with LOGO!

Switch: Q1

Lights

TH / TL

Output Q1 is set for the duration of a preset time TH with a

pulse signal at input I1.

The permanent lighting function is enabled by keeping the

momentary switch pressed for a specified time TL.

8.1.4 Special features and expansion options

Other options for increasing comfort or saving energy are,

for example:

A flashing function that indicates that the light is about to

be switched off automatically.

You can integrate various central functions:

– Central off

– Central on (panic button)

– Control of all lamps or individual circuits by means of

a daylight control switch

– Controlling by means of an integrated timer

(e.g. permanent lighting only until 24.00 h; disabled

at specific times)

– Automatically switching off the permanent lighting on

expiration of a preset time (e.g. after 3 hours)

Applications

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8.2 Automatic door

You often find automatic door control systems at the en-

trance to supermarkets, public buildings, banks, hospitals

etc.

8.2.1 Requirements of an automatic door

When a person approaches the door, it must open auto-

matically.

The door must remain open until the doorway is cleared.

When the doorway is cleared, the door must close auto-

matically with a short delay.

ÌÌÌÌÌ

ÑÑÑÑÑ

ÑÑÑÑ

ÌÌÌÌ

Out-

side

Inside

Limit switch

closed Limit switch

open

Master switch

S1 S2

Motion detector

Master switch

Motion detector

The door is usually driven by a motor that is equipped with

a slip coupling. This prevents people from being squeezed

in and injured. The control system is connected to the

mains via a master switch.

Applications

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8.2.2 Conventional solution

K1 K2

K2 K1

K3 K3

Open Close

S2 S1

B1 B2 K3

Open door Waiting time

Auxiliary circuit

When someone enters the detection range of one of the

motion sensors B1 or B2, the door opening motion is initi-

ated by setting K3.

After the detection range of the two motion sensors has

been cleared at least for a minimum time, K4 enables the

closing motion.

8.2.3 Door control system with LOGO!

LOGO! can simplify this circuit considerably. You only need

to connect the motion sensors, limit switches and the con-

tactor relays to the LOGO! .

Applications

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Wiring of a door control system with LOGO! 230RC

L1N I4 I5I6I7I8

Q1 Q2 Q3 Q4

K1 K2

Open Close

B1 B2 S2S1

I1 I2 I3

1 2 1 2 1 2 1 2

Components used

K1 contactor relay

open

K2 contactor relay

S1

(break contact)

limit switch

Closed

S2

(break contact)

limit switch

Open

B1

(make contact)

infrared motion sensor

outside

B2

(make contact)

infrared motion sensor

inside

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Door control system with LOGO!circuit diagram

I4 T=

Open

x &

This is what the circuit diagram of the conventional solution

looks like.

You can simplify this circuit if you make use of the LOGO!

functions. You can use the off-delay function to replace the

latching relay and the on-delay. The block diagram below

illustrates this simplification:

10 s

Open

Limit switch

Door closed

Limit switch

Door open

Motion

detector Q1

Applications

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8.2.4 Special features and expansion options

Options for increasing comfort and user friendliness are, for

example:

You can connect an additional control switch with the

positions: Open – Automatic – Closed (O-A-C)

You can connect a buzzer to an output of the LOGO! to

warn of the closing of the door.

You can enable opening of the door time and direction-

dependent, i.e. opening only during business hours, and

opening only from the inside after closing time.

8.2.5 Extended solution with LOGO! 230RC

Wiring the LOGO! extended solution

L1N I4 I5I6I7I8

K1 K2

Open Close

B1 B2 S2S1

Buzzer

S3 O-A-C

Q1 Q2 Q3 Q4

I1 I2 I3

1 2 1 2 1 2 1 2

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Block diagram of the extended LOGO! solution

Cam1:

Day= Mo..Fr

On = 09:00

Off =18:00

Cam2:

Day= Sa

On = 08:00

Off =13:00

Cam1:

Day= Mo..Fr

On = 09:00

Off =19:00

Cam2:

Day= Sa

On = 08:00

Off =14:00

Motion detector B1

Motion detector B2

T= 10 s

Control switch

Door open

Q2Close output

Limit switch

Door open

Open

Open output

Motion detector B1

Motion detector B2

Limit switch

Door closed

Control switch

Close door

Detecting motion

Actuate motor for opening

Actuate motor for closing

Applications

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Detecting motion

During business hours, the motion detector B1 initiates the

opening of the door when somebody wants to enter the

shop. Motion detector B2 initiates the opening of the door

when somebody wants to leave the shop.

After closing time, the motion detector B2 continues to be

used to open the door for 1 hour to allow the customers to

leave the shop.

Actuating the motor for opening

Output Q1 is set and opens the door when:

The control switch at I5 is actuated (the door is perma-

nently open), or

The motion detectors indicate that somebody is ap-

proaching the door, and

The door has not yet fully opened (limit switch at I4).

Actuating the motor for closing

Output Q2 is set to close the door when:

The control switch at I6 is actuated (the door is perma-

nently closed) or

The motion detectors indicate that there is nobody near

the door, and

The door has not yet fully closed (limit switch at I3).

Buzzer Connect the buzzer to output Q3. The buzzer gives a brief

warning (in this case 1 second) when the door is closing.

Enter the following circuit at Q3 in the circuit program:

T= 1 s

xQ3

Buzzer

Close output

Applications

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8.3 Air-conditioning System

8.3.1 Requirements for an air-conditioning System

The air-conditioning system supplies fresh air to a room or

exhausts the contaminated air from a room. Let us examine

following example:

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ

Fresh-air fan

Flow sensor

Exhaust fan

Flow sensor

The room is equipped with an exhaust fan and a fresh-

air fan.

Both fans are monitored by means of a flow sensor.

An excess atmospheric pressure may never develop in

the room.

The fresh-air fan must only be switched on if safe func-

tioning of the exhaust fan is signaled by the flow sensor.

A warning lamp indicates failure of a fan.

Applications

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The circuit diagram for conventional solutions is as follows:

K1 K5

Exhaust air Fresh air

K3K2

Operation

Auxiliary circuit

S3v>

Error

K2 K4

The fans are monitored by means of flow sensors. If no air

flow is registered within a short waiting time, the system is

switched off and an error message is output. This message

can be acknowledged by pressing the OFF button.

In addition to the flow sensors, the fan monitoring system

also requires an evaluating circuit with several switching

devices. This evaluating circuit can be replaced by a single

LOGO! unit.

Wiring of an air-conditioning system with LOGO! 230RC

L1 N I1 I3 I6 I7 I8

Q1 Q2 Q3 Q4

K1 K2

Exhaust

fan Fresh-air

fan

S2 S3 v>

H1 H2

I4 I5I1 I2 I3I1 I2 I3

1 2 1 2 1 2 1 2

Applications

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Components used

K1 contactor relay

K2 contactor relay

S0

(break contact)

STOP pushbutton

S1

(make contact)

START pushbutton

S2

(make contact)

flow sensor

S3

(make contact)

flow sensor

H1 signal lamp

H2 signal lamp

Block diagram of the LOGO! solution

The block diagram of the air-conditioning system with

LOGO! :

I1On

Q3Error

I2Off

Exhaust

fan

Fresh-air

fan

Exhaust fan

Exhaust air

flow sensor

I2Off Error

10 s

T= 10 s

Exhaust air flow

sensor

Fresh-air flow

sensor

Exhaust fan Q1

Fresh-air fan Q2

Applications

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8.3.2 Advantages of using LOGO!

The LOGO! solution requires less switchgear. That saves

you installation time and space in the control cabinet. You

might even be able to use a smaller switching cabinet.

Additional LOGO! options

The free output (Q4) can be used as isolated signal con-

tact for reporting faults or power failure.

It is possible to switch off of the fans by means of a se-

quential circuit.

These functions can be implemented without additional

switchgear.

Block diagram of the extended LOGO! solution

The fans at Q1 and Q2 are switched on and off by means

of the following circuit:

10 s

30 s

Exhaust

fan

Fresh-air

fan

Off

Fault Q3

I3Exhaust air flow

sensor

I2Off Error

10 s

Exhaust air flow

sensor

Fresh-air flow

sensor

Q1 exhaust fan

Fresh-air fan Q2

Applications

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You can also generate a message at output Q4:

Error Q4

Message

The relay contacts of output Q4

are always closed when

the system is in operation. Relay Q4 does not drop off un-

less there is a power failure or a fault in the system. This

contact can be used for remote monitoring, for example.

Applications

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8.4 Factory door

ÔÔ

Indicator

lamp

Safety pressure bar

The entrance to a company’s premises is often closed with

a gate. The gate is only opened to let vehicles in and out.

The gate is controlled by the porter.

8.4.1 Requirements for a gate control system

The gate is opened and closed by means of pushbut-

tons in the gatehouse. The porter can monitor the op-

eration of the gate at the same time.

The gate is normally fully opened or fully closed. The

gate motion can be interrupted at any time.

An indicator lamp is switched on five seconds before the

gate starts moving and when the gate is in motion.

A safety pressure bar prevents harm to persons and

objects from getting trapped or damaged when the gate

is closing.

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8.4.2 Previous solution

Various control systems are used to operate automatic

gates. The circuit diagram below shows one of these op-

tions.

K1 K5

Open Close

K3K2

Indicator lamp

Auxiliary circuit

S5 p>

S2 K3

K2 K4

Open Close

S5 p>

K3 K1

S4S3

Wiring of a gate control system with LOGO! 230RC

L1 N I4 I5 I6 I7 I8

Q1 Q2 Q3 Q4

K1 K3

Open Close

S4S3

S1 S2

S0 S5

S5 p>

Indicator lamp

OpenClose

Stop

I1 I2 I3

1 2 1 2 1 2 1 2

Applications

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Components used

K1 contactor relay

K2 contactor relay

S0

(break contact)

STOP pushbutton

S1

(make contact)

OPEN pushbutton

S2

(make contact)

CLOSE pushbutton

S3

(break contact)

Position sensor OPEN

S4

(break contact)

Position sensor CLOSED

S5

(break contact)

Safety bar

Block diagram of the LOGO! solution

5 s

Open

Signal

lamp

Safety bar

Gate is closed

Gate is open

STOP

pushbutton

Start

pushbutton

OPEN

STOP pushbutton

pushbutton

TH=

TL=2 s

Inv=lo

OPEN push-

button

CLOSE push-

button

Start push-

button

CLOSED

The OPEN or CLOSE pushbuttons initiate the gate motion,

provided it is not already moving in the other direction. The

gate is stopped by means of the STOP pushbutton or the

relevant limit switch. A safety bar furthermore interrupts the

closing motion of the gate.

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8.4.3 Extended LOGO! solution

Our extended control circuit is to open the gate automati-

cally when the safety bar is actuated.

Safety bar

Gate is open

STOP pushbutton

OPEN pushbutton

5 s

Open

5 s

Safety bar

Gate is closed

STOP pushbutton

CLOSE push-

button

Signal

lamp

TH=

TL=2 s

Inv=lo

Applications

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8.5 Centralized control and monitoring of

several factory doors

ÔÔ

1 Safety bar

2 flashing warning light

Master

ÔÔ

interf.

Door I

Door II

Door III

Often, a company’s premises can be entered at several

locations. Not all of the gates can always be monitored lo-

cally by personnel. They must therefore be able to be moni-

tored and operated by the porter who sits in a central gate-

house.

It must also be possible for a member of staff to open and

close the gate locally.

For each gate we are going to use one LOGO! 230RC and

one communication module AS interface. The modules and

the master are interconnected by means of a bus system.

This chapter describes a gate control system. The struc-

tures of the other gate control systems are identical.

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8.5.1 Requirements for a gate control system

Every gate is opened and closed by means of a cord-

operated switch. The gate is will be fully opened or fully

closed.

All gate can be opened and closed locally by means of

pushbuttons.

The gate can be opened and closed at the gatehouse

by means of the bus system. The GATE OPEN or GATE

CLOSED status is indicated.

An indicator lamp is switched on five seconds before the

gate starts moving and when the gate is in motion.

A safety pressure bar prevents harm to persons and

objects from getting trapped or damaged when the gate

closes.

Wiring of the gate control system with LOGO! 230RC and

CM AS interface

L1 N I3 I4 I5 I6 I7 I8

K1 K2

GateGate Indicator lamp

S0 S1 S2 S3 S4 S5 S6

I2I1

Q1 Q2 Q3 Q4

AS interface

1 2 1 2 1 2 1 2

Applications

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Components used

K1 contactor relay open

K2 contactor relay Close

S0

(make contact)

cord operated switch OPEN

S1

(make contact)

cord operated switch CLOSE

S2

(make contact)

OPEN pushbutton

S3

(make contact)

CLOSE pushbutton

S4

(break contact)

position sensor GATE IS OPEN

S5

(break contact)

position sensor

GATE IS CLOSED

S6

(break contact)

Safety bar

Master control system

Q5 position sensor GATE IS OPEN

Q6 position sensor GATE IS CLOSED

I9 external pushbutton OPEN GATE

I10 external pushbutton CLOSE GATE

Applications

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Block diagram of the LOGO! solution

1

Closed

Safety bar

Gate is closed

5 s

1

I4 Q2

I10

Open

gate

1

=1 & &

& 1

1

I5 x

I7 x

I7 xQ3

5 s

TH=

TL=2 s

Inv=lo

gate

Indica-

tor

lamp

Gate is open

Open gate

Gate is open

Open gate by hand

Close gate by hand

Safety bar

Gate is closed

Gate is open

Open

The OPEN GATE and CLOSE GATE pushbuttons initiate

the gate motion, provided it is not already moving in the

other direction. The gate motion ends at the respective limit

switch. Closing of the gate is also interrupted by the safety

bar.

Applications

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8.6 Luminous rows

ÉÉÉÉÉÉÉÉÉÉÉÉ

Luminous rows 2Luminous rows 1

Luminous rows 4Luminous rows 3

ÉÉÉ

ÉÉ

ÉÉÉÉ

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ

Corridor

Office

When planning lighting systems for commercial locations,

the type and number of lamps used is determined by the

luminance required. For reasons of cost efficiency, the

installation often consists of fluorescent tubes arranged in

luminous rows, and are divided into separate switching cir-

cuits, according to the way the room is used.

8.6.1 Requirements for a lighting system

The various luminous rows are switched on and off lo-

cally.

If there is sufficient daylight, the rows on the window

side of the room are automatically switched off by

means of a daylight control switch.

The lights are switched off automatically at 20.00 h.

Local manual operation of the lighting must be possible

at all times.

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8.6.2 Previous solution

lx> K6

K3 K4 K5 K6

S1 S2 S3 S4

K1 K2

K2K2K1

The lamps are switched on and off with pulse relays, by

means of pushbutton control at the door. Regardless of

this, they are reset with a timer or daylight control switch

signal at the

central off

input. The pulse width of the off

commands must be reduced by means of wiping relays to

allow operation of the lights after they are switched off.

Components required:

Pushbuttons S1 to S4

Daylight control switch B1

Timer E1

Wiping relays K1 and K2

Pulse switches K3 to K6 with central OFF function

Disadvantages of the previous solution

A substantial amount of switchgear needs to be installed

to implement the necessary functions.

Due to the large number of mechanical components,

high wear and tear and maintenance expenditure is to

be expected.

The modification of functions involves considerable ef-

fort.

Applications

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8.6.3 Luminous row control system with

LOGO! 230RC

L1 N I1 I3 I6 I7 I8

Q1 Q2 Q3 Q4

NI2 I3 I4

lx<

Luminous

row 1

Luminous

row 2 Luminous

row 3 Luminous

row 4

S1 S2 S3 S4

I1 I3I1 I3I4 I5I1 I2 I3I1 I2 I3I1 I2 I3I1 I2 I3

1 2 1 2 1 2 1 2

Components used

S1 to S4

(make contact)

momentary pushbutton

B1

(make contact)

daylight control switch

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Block diagram of the LOGO! solution

Mo..Su

20:00 - 20.01

Mo..Su

21:00 - 21.01

Off pulse triggered with timer

Daylight con-

trol switch

Off pulse triggered with daylight control switch

Luminous

row 3

Corridor side

Luminous

row 4

Corridor side

Luminous

row 1

Window side

Luminous

row 2

Window side

Advantages of the LOGO! solution

You can connect the lamps directly to the LOGO!, pro-

vided the power consumption does not exceed the

switching capacity of the various outputs. Higher loads

should be switched with a contactor relay.

Connect the daylight control switch directly to an input of

the LOGO! .

You do not need an external timer, because this function

is integrated in the LOGO! .

Due to the reduced amount of switchgear, you can

install a smaller and space-saving distribution cabinet.

Fewer devices are required

The lighting system can be easily modified.

Additional switching times can be set as required (se-

quential circuit for the off pulses at the end of the day).

The function of the daylight control switch can be easily

applied to all lamps or to a modified group of lamps.

Applications

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8.7 Service water pump

The use of rainwater as an addition to the drinking water

supply is gaining importance in the domestic housing area.

This saves money and helps to protect the environment.

For example, rainwater can be used for:

Washing clothes

Irrigation system for gardens

Watering indoor plants

Car wash

Toilet flushing installations

The sketch below illustrates how such a rainwater utiliza-

tion system is operated:

ÕÕÕ

ŠŠŠ

ÎÎÎ

Dry-run protection On

Drinking water supply On

Dry-run protection Off

Drinking water supply Off

Pump Pressure tank

Pressure switch

ÕÕÕ

Rainwater

reservoir Service water

connection

Control in the

distribution box

Drinking water supply line

Rainwater

supply line

The rainwater is collected in a reservoir. From the reservoir,

a pumping station supplies a respective line system. From

there it can be tapped in the same way as normal drinking

water. If the reservoir should run dry it can be topped up

with drinking water.

Applications

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8.7.1 Requirements for a control system of a service

water pump

Service water must be available at all times. In case of

emergency, the control system must automatically

switch over to drinking water supply.

When switching over to the drinking water supply, the

ingress of rainwater into the drinking water system must

be prevented.

The service water pump may not be switched on if the

reservoir has run low of rainwater (dry-run protection).

8.7.2 Previous solution

K1 K2

Pump Tracking time

S4 K3

Dry-run

protection

Auxiliary circuit

NK4

S3 K4

Drinking water

supply line

S3 S2

The pump and a solenoid valve are controlled by means of

a pressure switch and 3 float switches, which are installed

in the rainwater reservoir. The pump must be switched on

when the pressure level in the boiler drops below minimum.

After the operating pressure is reached, the pump is

switched off again after a tracking time of a few seconds

has expired. The tracking time prevents oscillation of the

water pump if water is drawn off over a longer period of

time.

Applications

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8.7.3 Service water pump system with

LOGO! 230RC

L1 N I4 I5 I6 I7 I8

Q1 Q2 Q3 Q4

K1 Y1

Pump

S4S3

S1 S2

Drinking water supply line

I1 I2 I3

1 2 1 2 1 2 1 2

Apart from the LOGO!, all you need is a pressure switch

and the float switches to control the pump. If you are using

a 3-phase AC motor, you must use a contactor relay to

switch the pump. For single-phase AC pump systems you

must provide a contactor relay if the power consumption of

the AC motor exceeds the capacity of the output relay Q1.

The power consumption of a solenoid valve is usually low

enough to allow direct controlling.

K1 contactor relay

Y1 solenoid valve

S1

(make contact)

pressure switch

S2

(make contact)

float switch

S3

(break contact)

float switch

S4

(break contact)

float switch

Applications

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Block diagram of the LOGO! solution

Float switch for drin-

king water supply ON Drinking water

supply line

Float switch for drinking water supply OFF

Pressure

switch

Float switch for dry-

run protection ON I4

Float switch for dry-

run protection OFF

T = 20 s x Pump

8.7.4 Special features and expansions

The block diagram shows how you can interconnect the

pump controls and the solenoid valve. The layout corre-

sponds with the circuit diagram. You also have the option to

integrate further functions for specific applications, which

can only be implemented in a conventional circuitry by add-

ing further switchgear, e.g.:

Enabling the pump at specific times

Indication of imminent or existing water shortage

Reporting of system faults

Applications

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8.8 Further fields of application

In addition to the application samples shown above, we

have placed further sample applications on the Internet

(see the preface for the URL).

There you can find, for example:

Irrigation system for greenhouse plants

Conveyor control system

Bending machine control system

Shop window lighting

Bell system (e.g. in a school)

Parking lot surveillance

Outdoor lighting

Shutter control system

Domestic outdoor and indoor lighting system

Control system of a cream stirrer

Sports hall lighting

Constant load on 3 consumers

Sequential control system for cable-welding machines

for large cross-sections

Step switch (e.g. for fans)

Sequential control for boilers

Control system for several pump sets with centralized

operator control

Cutting device (e.g. for detonating fuses)

Monitoring periods of utilization, e.g. of a solar energy

system

Intelligent foot switches, e.g. for speed preselection)

Elevating platform controls

Impregnation of textiles, heating and conveyor belt con-

trols

Silo-filling system

and lots more.

Applications

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On the Web you can also find descriptions and the corre-

sponding circuit diagrams of the applications. You can read

these *.pdf files with the Adobe AcrobatReader. If you have

installed LOGO!Soft Comfort on your computer, you can

simply click the disk icon to download the relevant circuit

programs, which you can then adapt to suit your application

and download to the LOGO! directly via the PC cable.

Benefits of LOGO!

LOGO! is a particularly useful feature

 For replacing auxiliary switchgear with the integrated

LOGO! functions

For saving wiring and installation work - because

LOGO! keeps the wiring ”in its head”.

For reducing space requirements for components in the

control cabinet/distribution box. A smaller control cabi-

net/distribution box may provide sufficient space.

For adding or changing functions, without having to

install additional switchgear or change the wiring.

For offering your customers new, additional functions for

domestic and commercial housing installations. Exam-

ples:

– Domestic security systems: LOGO! switches on a

lamp at regular intervals or opens and closes the

shutters while you are on holiday.

– Central heating: LOGO! runs the circulation pump

only when water or heating is actually required.

– Refrigerating systems: LOGO! can defrost refrigerat-

ing systems at regular intervals to save energy costs.

– You can illuminate aquaria and terraria on a time-de-

pendent basis.

Last not least you can:

Use commonly available switches and pushbuttons,

which makes it easy to install a domestic system.

Connect LOGO! directly to your domestic installation;

the integrated power supply makes it possible.

Applications

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Do you want more Info?

For more information about LOGO!, see our web page

(see the preface for the URL).

Do you have any suggestions?

There are definitely many more useful applications for the

LOGO! . If you know of one, why not write to us? We will

collect all the suggestions made and distribute as many of

them as we can. No matter whether your LOGO! circuit is

particularly complex or simple, simply write to us. We shall

be delighted to receive all your suggestions.

Write to:

Siemens AG

A&D AS SM MA

PO box 48 48

D-90327 Nuremberg

Applications

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Applications

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A Technical data

A.1 General technical data

Criterion Tested in accor-

dance with Values

LOGO!Basic:

Dimensions (WxHxD) 72 x 90 x 55 mm

Weight Approx. 190 g

Installation on a 35 mm profile rail

4 module widths

or wall mounting

LOGO! expansion

module:

Dimensions (WxHxD) 36 x 90 x 55 mm

Weight Approx. 90 g

Installation on a 35 mm profile rail

4 module widths

or wall mounting

Climatic conditions

Ambient temperature

Horizontal installation Low temperature to

IEC 60068-2-1

High tem

erature

0 ... 55 °C

Vertical installation

empera

ure

IEC 60068-2-2 0 ... 55 °C

Storage/shipping –- 40 °C ... +70 °C

Relative humidity IEC 60068-2-30 From 10 to 95 %

no condensation

Air pressure 795 ... 1080 hPa

Pollutants IEC 60068-2-42

IEC 60068-2-43 SO2 10 cm3 /m3,

4 days

H2S 1 cm3 /m3,

4 days

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Criterion ValuesTested in accor-

dance with

Ambient mechanical conditions

Protection mode IP20

Vibrations: IEC 60068-2-6 5 ... 9 Hz (constant

amplitude 3.5 mm)

9 ... 150 Hz (constant

acceleration 1 g)

Shock IEC 60068-2-27 18 shocks

(half-sine wave

15g/11 ms)

Drop IEC 60068-2-31 Drop height 50 mm

Free fall (packaged) IEC 60068-2-32 1 m

Electromagnetic compatibility (EMC)

Noise emission EN 55011/A

EN 55022/B

EN 50081-1

(domestic area)

Limit class B group 1

Electrostatic discharge IEC 61000-4-2

Severity 3 8 kV air discharge

6 kV contact discharge

Electromagnetic fields IEC 61000-4-3 Field strength 10 V/m

HF currents on cables and

cable shielding IEC 61000-4-6 10 V

Burst pulses IEC 61000-4-4

Severity 3 2 kV (supply and sig-

nal lines)

High-energy surge pulse

(applies only to

LOGO! 230 ...)

IEC 61000-4-5

Severity 3 1 kV (power lines)

symmetrical

2 kV (power lines)

asymmetrical

Safety to IEC / VDE

Clearance and creepage

distance rating IEC 60664,

IEC 61131-2,

EN 50178

cULus to UL 508,

CSA C22.2 No.

142

With LOGO!

230 R/RC,

also VDE 0631

Fulfilled

Insulation strength IEC 61131-2 Fulfilled

Technical data

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A.2 Technical data: LOGO! 230...

and LOGO! DM8 230R

LOGO! 230 RC

LOGO! 230 RCo LOGO! DM8 230R

Power supply

Input voltage 115...240 V AC/DC 115...240 V AC/DC

Permissible range 85 ... 265 V AC

100 ... 253 V DC 85 ... 265 V AC

100 ... 253 V DC

Permissible mains frequency 47 ... 63 Hz 47 ... 63 Hz

Power consumption

115 V AC 10 ...40 mA 10 ... 30 mA

240 V AC 10 ... 25 mA 10 ... 20 mA

115 V DC 5 ... 25 mA 5 ... 15 mA

240 V DC 5 ... 15 mA 5 ... 10 mA

Voltage failure buffering

115 V AC/DC

10 ms



AC/DC

typ.

ms typ.



240 V AC/DC

20 ms

240

AC/DC

Power loss at

115 V AC 1.1 ... 4.6 W 1.1 ... 3.5 W

240 V AC 2.4 ... 6.0 W 2.4 ... 4.8 W

115 V DC 0.5 ... 2.9 W 0.5 ... 1.8 W

240 V DC 1.2 ... 3.6 W 1.2 ... 2.4 W

Backup of the real-time clock

at 25 Ctyp. 80 h

Accuracy of the real-time

clock typ. 2 s / day

Digital inputs

Number 8 4

Electrical isolation No No

Technical data

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LOGO! DM8 230RLOGO! 230 RC

LOGO! 230 RCo

Input voltage L1

Signal 0

Signal 1

Signal 0

Signal 1

< 40 V AC

> 79 V AC

< 30 V DC

> 79 V DC

< 40 V AC

> 79 V AC

< 30 V DC

> 79 V DC

Input current at

Signal 0

Signal 1

< 0.03 mA

>008mA

< 0.03 mA

>008mA



gna

Delay time at

0 to 1 typ. 50 ms typ. 50 ms

1 to 0

typ. 50 ms

Line length (unshielded) 100 m 100 m

Digital outputs

Number 4 4

Output type Relay outputs Relay outputs

Electrical isolation Yes Yes

In groups of 1 1

Control of a digital input Yes Yes

Continuous current Ith max. 10 A per relay max. 5 A per relay

Incandescent lamp load

(25000 switching cycles) at

230/240 V AC

115/120 V AC 1000 W

500 W 1000 W

500 W

Fluorescent tubes with ballast

(25000 switching cycles) 10 x 58 W

(at 230/240 V AC) 10 x 58 W

(at 230/240 V AC)

Fluorescent tubes, conven-

tionally compensated (25000

switching cycles)

1 x 58 W

(at 230/240 V AC) 1 x 58 W

(at 230/240 V AC)

Technical data

263

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LOGO! DM8 230RLOGO! 230 RC

LOGO! 230 RCo

Fluorescent tubes, uncom-

pensated (25000 switching

cycles)

10 x 58 W (at

230/240 V AC) 10 x 58 W (at

230/240 V AC)

Short circuit-proof cos 1 Power protection

B16

600A

Power protection

B16

600A

Short-circuit proof cos

0.5 to 0.7 Power protection

B16

900A

Power protection

B16

900A

Derating none; across the

entire temperature

range

none; across the

entire temperature

range

Parallel output circuits for

power increase Not permitted Not permitted

Protection of output relay

(if desired) max. 16 A,

characteristic B16 max. 16 A,

characteristic B16

Switching rate

Mechanical 10 Hz 10 Hz

Ohmic load/lamp load 2 Hz 2 Hz

Inductive load 0.5 Hz 0.5 Hz

Technical data

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A.3 Technical data: LOGO! 24... and

LOGO! DM8 24

LOGO! 24

LOGO! 24o LOGO! DM8 24

Power supply

Input voltage 24 V DC 24 V DC

Permissible range 20.4 ... 28.8 V DC 20.4 ... 28.8 V DC

Reverse polarity protection Yes Yes

Permissible mains frequency

Power consumption from

24 V DC 30 ... 55 mA

0.3 A per output 30 ... 45 mA

0.3 A per output

Voltage failure buffering

Power loss at 24 V 0.7 ... 1.3 W 0.8 ... 1.1 W

Backup of the real-time clock

at 25 C

Accuracy of the real-time

clock

Digital inputs

Number 8 4

Electrical isolation No No

Input voltage L+ L+

Signal 0 < 5 V DC < 5 V DC

Signal 1 > 8 V DC > 8 V DC

Technical data

265

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LOGO! DM8 24LOGO! 24

LOGO! 24o

Input current at

Signal 0 < 1.0 mA (I1...I6)

< 0.05 mA (I7, I8) < 1.0 mA

Signal 1

(, )

> 1.5 mA (I1... I6)

> 0.1 mA (I7, I8) > 1.5 mA

Delay time at

0 to 1 typ. 1.5 ms (I1...I4)

<1.0 ms (I5, I6)

typ. 300 ms (I7,I8)

typ. 1.5 ms

1 to 0

y()

typ. 1.5 ms (I1...I4)

<1.0 ms (I5, I6)

typ. 300 ms (I7,I8)

typ. 1.5 ms

Line length (unshielded) 100 m 100 m

Analog inputs

Number 2 (I7 and I8)

Range 0 ... 10 V DC

input impedance

76 k

max. input voltage 28.8 V DC

Line length (shielded and

twisted) 10 m

Digital outputs

Number 4 4

Output type Transistor,

current-sourcing Transistor,

current-sourcing

Electrical isolation No No

In groups of

Control of a digital input Yes Yes

Output voltage  Supply voltage  Supply voltage

Output current max. 0.3 A max. 0.3 A

Technical data

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LOGO! DM8 24LOGO! 24

LOGO! 24o

Continuous current Ith

Incandescent lamp load

(25000 switching cycles) at

Fluorescent tubes with ballast

(25000 switching cycles)

Fluorescent tubes, conven-

tionally compensated (25000

switching cycles)

Fluorescent tubes, uncom-

pensated (25000 switching

cycles)

Short circuit-proof and over-

load-proof Yes Yes

Short-circuit current limitation Approx. 1 A Approx. 1 A

Derating none; across the

entire temperature

range

none; across the

entire temperature

range

Short circuit-proof cos 1

Short-circuit proof cos 0.5 to

0.7

Parallel output circuit for

power increase Not permitted Not permitted

Protection of output relay (if

desired)

Switching rate

Mechanical

Electrical 10 Hz 10 Hz

Ohmic load/lamp load 10 Hz 10 Hz

Inductive load 0.5 Hz 0.5 Hz

Technical data

267

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A.4 Technical data: LOGO! 24RC... and

LOGO! DM8 24 R

LOGO! 24RC

LOGO! 24RCo LOGO! DM8 24 R

Power supply

Input voltage 24 V AC/DC 24 V AC/DC

Permissible range 20.4 ... 26.4 V AC

20.4 ... 28.8 V DC 20.4 ... 26.4 V AC

20.4 ... 28.8 V DC

Reverse polarity protection

Permissible mains frequency 47 ... 63 Hz 47 ... 63 Hz

Power consumption

24 V AC

24 V DC 40 ... 110 mA

20 ... 75 mA 40 ... 110 mA

20 ... 75 mA

Voltage failure buffering typ. 5 ms typ. 5 ms

Power loss

24 V AC

24 V DC 0.9 ... 2.7 W

0.4 ... 1.8 W 0.9 ... 2.7 W

0.4 ... 1.8 W

Backup of the real-time clock

at 25 Ctyp. 80 h typ. 80 h

Accuracy of the real-time

clock typ. 2 s / day

Digital inputs

Number 8,

optional P action or

N action

optional P action or

N action

Electrical isolation No No

Input voltage L L

Signal 0 < 5 V AC/DC < 5 V AC/DC

Signal 1 > 12 V AC/DC > 12 V AC/DC

Technical data

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268

LOGO! DM8 24 RLOGO! 24RC

LOGO! 24RCo

Input current at

Signal 0 < 1.0 mA < 1.0 mA

Signal 1 > 2.5 mA > 2.5 mA

Delay time at

0 to 1 typ. 1,5 ms typ. 1.5 ms

1 to 0 typ. 15 ms typ. 15 ms

Line length (unshielded) 100 m 100 m

Analog inputs

Number

Range

max. Input voltage

Digital outputs

Number 4 4

Output type Relay outputs Relay outputs

Electrical isolation Yes Yes

In groups of 1 1

Control of a digital input Yes Yes

Output voltage

Output current

Continuous current Ith max. 10 A per relay max. 5 A per relay

Incandescent lamp load

(25000 switching cycles) at 1000 W 1000 W

Fluorescent tubes with ballast

(25000 switching cycles) 10 x 58 W 10 x 58 W

Technical data

269

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A5E00228550-01

LOGO! DM8 24 RLOGO! 24RC

LOGO! 24RCo

Fluorescent tubes, conven-

tionally compensated (25000

switching cycles)

1 x 58 W 1 x 58 W

Fluorescent tubes, uncom-

pensated (25000 switching

cycles)

10 x 58 W 10 x 58 W

Short circuit-proof and over-

load-proof

Short-circuit current limitation

Derating none; across the

entire temperature

range

none; across the

entire temperature

range

Short circuit-proof cos 1 Power protection

B16,

600A

Power protection

B16,

600A

Short-circuit proof cos 0.5 to

0.7 Power protection

B16,

900A

Power protection

B16,

900A

Parallel output circuits for

power increase Not permitted Not permitted

Protection of output relay (if

desired) max. 16 A,

characteristic B16 max. 16 A,

characteristic B16

Switching rate

Mechanical 10 Hz 10 Hz

Electrical

Ohmic load/lamp load 2 Hz 2 Hz

Inductive load 0.5 Hz 0.5 Hz

Technical data

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A.5 Technical data: LOGO! 12/24... and

LOGO! DM8 12/24R

LOGO! 12/24RC

LOGO! 12/24RCo LOGO! DM8

12/24R

Power supply

Input voltage 12/24 V DC 12/24 V DC

Permissible range 10.8 ... 28.8 V DC 10.8 ... 28.8 V DC

Reverse polarity protection Yes Yes

Power consumption

12 V DC

24 V DC 30 ... 140 mA

20 ... 75 mA 30 ... 140 mA

20 ... 75 mA

Voltage failure buffering

12 V DC

24 V DC typ. 2 ms

typ. 5 ms typ. 2 ms

typ. 5 ms

Power loss

12 V DC

24 V DC 0.3 ... 1.7 W

0.4 ... 1.8 W 0.3 ... 1.7 W

0.4 ... 1.8 W

Backup of the real-time clock

at 25 Ctyp. 80 h

Accuracy of the real-time

clock typ. 2 s / day

Electrical isolation No No

Digital inputs

Number 8 4

Electrical isolation No No

Input voltage L+

Signal 0 < 5 V DC < 5 V DC

Signal 1 > 8 V DC > 8 V DC

Technical data

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A5E00228550-01

LOGO! DM8

12/24R

LOGO! 12/24RC

LOGO! 12/24RCo

Input current at

Signal 0

Si l 1

< 1.0 mA (I1...I6)

< 0.05 mA (I7, I8)

1 5 A (I1 I6)

< 1.0 mA

Signal 1 > 1.5 mA (I1... I6)

> 0.1 mA (I7, I8) > 1.5 mA

Delay time at

0 to 1 typ. 1.5 ms

<1.0 ms (I5, I6)

typ. 300 ms (I7,I8)

typ. 1.5 ms

1 to 0

y()

typ. 1.5 ms

<1.0 ms (I5, I6)

typ. 300 ms (I7,I8)

typ. 1.5 ms

Line length (unshielded) 100 m 100 m

Analog inputs

Number 2 (I7, I8)

Range 0 ... 10 V DC

input impedance

76 k

max. Input voltage 28.8 V DC

Line length (shielded and

twisted) 10 m

Digital outputs

Number 4 4

Output type Relay outputs Relay outputs

Electrical isolation Yes Yes

In groups of 1 1

Control of a digital input Yes Yes

Output voltage

Output current

Technical data

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272

LOGO! DM8

12/24R

LOGO! 12/24RC

LOGO! 12/24RCo

Continuous current Ith (per

terminal) max. 10 A per relay max. 5 A per relay

Incandescent lamp load

(25000 switching cycles) at 1000 W 1000 W

Fluorescent tubes with ballast

(25000 switching cycles) 10 x 58 W 10 x 58 W

Fluorescent tubes, conven-

tionally compensated (25000

switching cycles)

1 x 58 W 1 x 58 W

Fluorescent tubes, uncom-

pensated (25000 switching

cycles)

10 x 58 W 10 x 58 W

Short circuit-proof and over-

load-proof

Short-circuit current limitation

Derating none; across the

entire temperature

range

none; across the

entire temperature

range

Short circuit-proof cos 1 Power protection

B16

600A

Power protection

B16

600A

Short-circuit proof cos 0.5 to

0.7 Power protection

B16

900A

Power protection

B16

900A

Parallel output circuits for

power increase Not permitted Not permitted

Protection of output relay (if

desired) max. 16 A,

characteristic B16 max. 16 A,

characteristic B16

Switching rate

Mechanical 10 Hz 10 Hz

Electrical

Ohmic load/lamp load 2 Hz 2 Hz

Inductive load 0.5 Hz 0.5 Hz

Technical data

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A.6 Switching capacity and service life of the

relay outputs

Ohmic load

Switching cycles/million

Switched current/A

0.1

0.2

0.3

0.4

0.5

246810

Maximum 10 A

Maximum 0.2 A

Maximum 0.1 A

12/24 V AC/DC

115/120 V AC

230/240 V AC

120 V DC

240 V DC

Figure A Switching capacity and service life of the contacts with ohmic

load (heating)

Inductive load

Switching cycles/million

Switched current/A

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0 Maximum 2 A

Maximum 3 A

Maximum 0.2 A

Maximum 0.1 A

12/24 V AC/DC

115/120 V AC

230/240 V AC

120 V DC

240 V DC

Figure B Switching capacity and service life of the contacts with high in-

ductive load to IEC 947-5-1 DC 13/AC 15 (contactors, solenoid

coils, motors)

Technical data

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A.7 Technical data: LOGO! AM 2

LOGO! AM 2

Power supply

Input voltage 12/24 V DC

Permissible range 10.8 ... 28.8 V DC

Power consumption 25 ... 50 mA

Voltage failure buffering typ. 5 ms

Power loss at

12 V

24 V 0.3 ... 0.6 W

0.6 ... 1.2 W

Electrical isolation No

Reverse polarity protection Yes

Ground terminal for connecting ground and shielding of

the analog measuring line.

Analog inputs

Number 2

Type Unipolar

Input range 0 ... 10 V DC (input impedance 76 k)

0 ... 20 mA (input impedance <250 )

Resolution 10 bit, normalized to 0 ... 1000

Cycle time for analog value

generation 50 ms

Electrical isolation No

Line length (shielded and

twisted) 10 m

Encoder supply voltage none

Error limit +/– 1.5 %

Interference frequency suppres-

sion 55 Hz

Technical data

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A5E00228550-01

A.8 Technical data: LOGO! AM 2 PT100

LOGO! AM 2 PT100

Power supply

Input voltage 12/24 V DC

Permissible range 10.8 ... 28.8 V DC

Power consumption 25 ... 50 mA

Voltage failure buffering typ. 5 ms

Power loss at

12 V

24 V 0.3 ... 0.6 W

0.6 ... 1.2 W

Electrical isolation No

Reverse polarity protection Yes

Ground terminal for connecting ground and shielding of

the measuring line

Sensor inputs

Number 2

Type Resistive thermocouple Pt100

Connection of sensors

2-wire technique

3-wire technique Yes

Yes

Measurement range -50 °C ... +200 °C

–58 °F ... +392 °F

Settings for the measurement

display on the basic module:

1 °C steps

0.25 °C steps

(rounded to one decimal)

1 °C steps

0.25 °C steps

(rounded to one decimal)

Offset: –200, Gain: 25

Offset: –200, Gain: 250

Offset: –128, Gain: 45

Offset: –128, Gain: 450

Technical data

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LOGO! AM 2 PT100

Curve linearization No

Measuring current Ic 1.1 mA

Measurement rate depends on the installation

typical: 50 ms

Resolution 0.25 °C

Error limits

0 °C ... +200 °C

-50 °C ... +200 °C

of the final measured value:

+/– 1.0 %

+/– 1.5 %

Electrical isolation No

Cable length (shielded) 10 m

Interference frequency suppres-

sion 55 Hz

Technical data

277

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A5E00228550-01

A.9 Technical data: LOGO!Power 12 V

LOGO! Power 12 V is a primary-switched power supply unit

for LOGO! devices. Two current ranges are available.

LOGO! Power

12 V / 1.9 A LOGO! Power

12 V / 4.5 A

Input data

Input voltage 120 ... 230 V AC

Permissible range 85 ... 264 V AC

Permissible mains frequency 47 ... 63 Hz

Voltage failure buffering > 40 ms (at 187 V AC)

Input current 0.3 ... 0.18 A 0.73 ... 0.43 A

Make current (25°C)  15 A  30 A

Device protection Internal

Recommended circuit

breaker (IEC 898) in mains

line

> 6 A characteristic D

> 10 A characteristic C

Output data

Output voltage

Overall tolerance

Adjustment range

Residual ripple

12 V DC

+/–3 %

11.1 ... 12.9 V DC

< 200 mVpp

Output current

Overcurrent limiting 1.9 A

2.4 A 4.5 A

4.5 A

Efficiency  80 %

Parallel circuit for power in-

crease Yes

Electromagnetic compatibility

Interference suppression EN 50081-1, EN 55022 Class B

Interference immunity EN 50082-2

Technical data

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LOGO! Power

12 V / 4.5 A

LOGO! Power

12 V / 1.9 A

Safety

Electrical isolation, primary/

secondary Yes, SELV (to EN 60950/VDE 0805)

Safety class II (to IEC 536/VDE 0106 T1)

Protection mode IP 20 (to EN 60529/VDE 470 T1)

CE marking

UL/CSA certification

FM approval

Yes

Yes; UL 508 / CSA 22.2

In preparation

General details

Ambient temperature range –20 ... +55°C, natural convection

Storage and shipping tempe-

rature –40 ... +70°C

Connections at input One terminal (1 x 2.5 mm2 or 2 x 1.5 mm2)

per L1 and N

Connections at output Two terminals (1x.2.5 mm2 or

2 x 1.5 mm2) per L+ and M

Installation On 35 mm DIN rail, snap-on

Dimensions in mm (WxHxD) 72 x 80 x 55 126 x 90 x 55

Approx. weight 0.2 kg 0.4 kg

Technical data

279

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A.10 Technical data: LOGO!Power 24 V

LOGO! Power 24 V is a primary-switched power supply

module for LOGO! devices. Two current ranges are avail-

able.

LOGO! Power

24 V / 1.3 A LOGO! Power

24 V / 2.5 A

Input data

Input voltage 120 ... 230 V AC

Permissible range 85 ... 264 V AC

Permissible mains frequency 47 ... 63 Hz

Voltage failure buffering 40 ms (at 187 V AC)

Input current 0.48 ... 0.3 A 0.85 ... 0.5 A

Inrush current (25°C) < 15 A < 30 A

Device protection Internal

Recommended circuit

breaker (IEC 898) in mains

line

> 6 A characteristic D

> 10 A characteristic C

Output data

Output voltage

Overall tolerance

Adjustment range

Residual ripple

24 V DC

+/- 3 %

22.2 ... 25.8 V DC

< 250 mVpp

Output current

Overcurrent limiting 1.3 A

1.6 A 2.5 A

2.8 A

Efficiency > 80 %

Parallel circuit for power in-

crease Yes

Electromagnetic compatibility

Interference suppression EN 50081-1, EN 55022 Class B

Interference immunity EN 50082-2

Technical data

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280

LOGO! Power

24 V / 2.5 A

LOGO! Power

24 V / 1.3 A

Safety

Electrical isolation, primary/

secondary Yes, SELV (to EN 60950/VDE 0805)

Safety class II (to IEC 536/VDE 0106 T1)

Protection mode IP 20 (to EN 60529/VDE 470 T1)

CE marking

UL/CSA certification

FM approval

Yes

Yes; UL 508 / CSA 22.2

Yes; Class I, Div. 2, T4

General details

Ambient temperature range –20 ... +55°C, natural convection

Storage and shipping tempe-

rature –40 ... +70°C

Connections at input One terminal (1 x. 2.5 mm2 or 2 x 1.5 mm2)

per L1 and N

Connections at output Two terminals (1x.2.5 mm2

or 2 x 1.5 mm2) per L+ and M

Installation On 35 mm DIN rail, snap-on

Dimensions in mm (WxHxD) 72 x 80 x 55 126 x 90 x 55

Approx. weight 0.2 kg 0.4 kg

Technical data

281

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A.11 Technical data: LOGO! Contact 24/230

LOGO! Contact 24 and LOGO! Contact 230 are switching

modules for direct switching of ohmic loads up to 20 Amps

and motors up to 4 kW (without noise emission, hum-free).

LOGO!

Contact 24 LOGO!

Contact 230

Operating voltage 24 V DC 230 V AC;

50/60 Hz

Switching capacity

Utilization category AC-1: Switching of

ohmic loads at 55°C

Operating current at 400 V

Output with three-phase loads at 400 V 20 A

13 kW

Utilization category AC-2, AC-3: Motor

with slip ring induction/cage armature

Operating current at 400 V

Output with three-phase loads at 400 V 8.4 A

4 kW

Short-circuit protection:

Assignment type 1

Assignment type 2 25 A

10 A

Connecting leads Fine-wire with wire end ferrules

Solid wire

2 x (0.75 to 2.5) mm2

2 x (1 to 2.5) mm2

1 x 4 mm2

Dimensions (WxHxD) 36 x 72 x 55

Ambient temperature -25 ... +55°C

Storage temperature -50 ... +80°C

Technical data

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Technical data

283

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B Determining the cycle time

The program cycle is the complete execution of the circuit

program, that is, primarily the reading in of the inputs, the

processing of the circuit program and the subsequent read-

ing out of the outputs. The cycle time is the time required to

execute a circuit program once in full.

The time required for a program cycle can be determined

using a short test program. This test program is created in

LOGO! and returns a value during its execution in parame-

ter assignment mode from which the current cycle time is

derived.

Test program

1. Create the test program by linking an output to a thresh-

old trigger and connecting the trigger input with an in-

verted flag.

Par Qx

B1 Output Qx or

other flag Mx

M1 1

2. Configure the threshold trigger as shown below. A pulse

is generated in each program cycle due to the inverted

flag. The trigger interval is set to 2 seconds.

LOGO! Manual

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284

B1 1+

On =1000

Off=0000

B1 2

G_T=02:00s

Press 

3. Now start the circuit program and switch LOGO! to pa-

rameter assignment mode. In this mode, view the trigger

parameters.

On =1000

Off =0000

fa =0086 fa= total of measured pulses per timeb

4. The reciprocal value of fa is equivalent to the LOGO!

execution time of the current circuit program in its me-

mory.

1/fa = cycle time in s

Explanation

The inverted flag block changes its output signal at each

program execution. Thus, one logic level (high or low) width

is exactly equivalent to the length of one cycle. Hence, a

period lasts 2 cycles.

The threshold trigger indicates the ratio of periods per 2

seconds, which results in the ratio of cycles per second.

Edge transition of the inverted flag at

each circuit program execution

Cycle

time

Period

1 period = 1 pulse = 2 cycles

Determining the cycle

285

LOGO! Manual

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C LOGO! without display

Because some specific applications do not require operator

control and monitoring units such as buttons or a display,

we provide the LOGO! 12/24RCo, LOGO! 24o,

LOGO! 24RCo and LOGO! 230RCo versions without dis-

play.

View of a LOGO! 230RCo, for example:

I4 I5 I6

Q1 Q2 Q3 Q4

L1 N

RUN/STOP

I7 I8

I1 I2 I3

1 2 1 2 1 2 1 2

Less is definitely more!

The versions without display offer you the following bene-

fits:

Even more cost-effective without the operating element.

Requires less switch cabinet space than conventional

hardware.

Substantial benefits with regard to flexibility and prime

costs compared to stand-alone electronic switchgear.

Of advantage even for applications in which merely two

or three conventional switching devices can be re-

placed.

Very easy to use.

Access protected.

Compatible to LOGO! versions with display.

Offers the option to read data by means of LOGO!Soft

Comfort.

LOGO! Manual

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286

Creating a circuit program without operator panel

There are two ways to create a circuit program for a LOGO!

without display:

You create the circuit program with LOGO!Soft Comfort

on your PC and then download it to the LOGO!

(see Chapter 7).

You download the circuit program from a LOGO! pro-

gram module (card) to your LOGO! without display

(see Chapter 6).

Operating characteristics

LOGO! is ready for operation when power is switched on.

Switching off a LOGO! without display is equivalent to dis-

connecting the power supply, e.g. as if you were removing

the plug.

The circuit program of LOGO!...o versions can not be star-

ted or stopped by means of buttons. This is why the

LOGO!...o versions have other startup characteristics:

Startup characteristics

If there is no circuit program in the LOGO! or on the in-

serted program module (card), LOGO! remains in STOP.

If there is a valid circuit program in LOGO! memory, the

LOGO! automatically switches from STOP to RUN when

power is switched on.

The circuit program on an inserted program module (card)

is automatically copied to the LOGO!, immediately after

power is switched on. The existing circuit program in

LOGO! memory is overwritten. The system automatically

changes from STOP to RUN.

Provided the PC cable is connected to the LOGO!, you can

download the circuit program to LOGO! and start it by

means of the LOGO!Soft Comfort PC software

(see Chapter 7.1).

LOGO! without display

287

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A5E00228550-01

Operating status indication

Operating states, e.g. Power On, RUN and STOP are indi-

cated by an LED on the front hood.

Red LED: Power On/STOP

Green LED: Power On/RUN

The red LED is lit after Power On and in all LOGO! states

other than RUN. The green LED is lit when LOGO! is in

RUN mode.

Reading current data

LOGO!Soft Comfort (see Chapter 7) provides an online test

for reading the current data of all functions while the sys-

tem is in RUN.

If your LOGO! without display holds a protected program

module (card), you can not read the current data unless

you enter the correct password for your the circuit program.

The circuit program is otherwise deleted from LOGO! me-

mory when you remove the program module (card) to con-

nect the PC cable, for example (see Chapter 6.1).

LOGO! without display

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288

LOGO! without display

289

LOGO! Manual

A5E00228550-01

D LOGO! menu structure

>Stop

Set Param

Set Clock

Prg Name

>Program

Card

Clock

Start

Menu overview

See “Main menu”

Mo 09:00

2003-01-27

See “Start menu“

Press ESC

No Program

Circuit program is

busy (RUN)

No Program

Parameter setting (Chapter 5.1.1 cont.)

Clock/date setting (Chapter 5.2)

Display of the program name

>Program..

Card..

Clock..

Start

>Yes

Parameter assign-

ment menu

Main menu (ESC / >Stop)

See “Programming menu”

>Edit..

> –>Card

>Set

Clock

See “Transfer menu”

See “Clock menu”

See “Start menu“

>Stop/>Yes

Mo 09:00

2003-01-27

Programming menu (ESC / >Stop >Program)

>Edit..

>Clear Prg

>Password

>Edit Prg Password? Editing the program

(Chapter 3.6 cont.)

>Edit Name

>Memory?

Editing the program

name (Chapter 3.6.4)

Show available memory

space (Chapter 3.7)

Deleting the program

(Chapter 3.6.11)

Input/change of pass-

word (Chapter 3.6.5)

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290

Transfer menu (ESC / >Stop >Card)

Clock menu (ESC / >Stop >Clock)

> –>Card

>Card–>

>CopyProtect

Copying the program from the program mod-

ule (card) to LOGO! (Chapter 6.4)

Setting the program/copy protection

(Chapter 6.1)

Copying the circuit program from LOGO!

to the program module (card) (Chapter 6.3)

Start menu (RUN)

>Set Clock

>S/W Time

>Sync

Setting the summertime/wintertime (Chapter 3.6.12)

Synchronizing the times of LOGO! Basic

and expansion modules (Chapter 3.6.13)

Setting the time/date (Chapter 5.2)

Everything

clear?

LOGO!

Mo 09:00

2003–01–27

Date/time

max. 10 message texts

Inputs

0.. 123456789

1..0123456789

2..01234

Cursor keys

0.. 123456789

1..0123456

0.. 123456789

1..0123456789

2..01234

ESC+Key

Outputs Flags

Parameter assignment menu

>Stop

Set Param

Set Clock

Prg Name

LOGO! Menu structure

291

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A5E00228550-01

E Order numbers

Table A

Variant Designation Order number

Basic LOGO! 12/24 RC *

LOGO! 24):

LOGO! 24 RC (AC)

LOGO! 230 RC

6ED1052-1MD00-0BA4

6ED1052-1CC00-0BA4

6ED1052-1HB00-0BA4

6ED1052-1FB00-0BA4

Basic

without display

(pure)

LOGO! 12/24 RCo *

LOGO! 24o *

LOGO! 24 RCo (AC)

LOGO! 230 RCo

6ED1052-2MD00-0BA4

6ED1052-2CC00-0BA4

6ED1052-2HB00-0BA4

6ED1052-2FB00-0BA4

Digital modules LOGO! DM 8 12/24R

LOGO! DM 8 24

LOGO! DM 8 24R

LOGO! DM 8 230R

6ED1055-1MB00-0BA1

6ED1055-1CB00-0BA0

6ED1055-1HB00-0BA0

6ED1055-1FB00-0BA1

Analog modules LOGO! AM 2

LOGO! AM 2 PT100 6ED1055-1MA00-0BA0

6ED1055-1MD00-0BA0

*: Also with analog inputs

LOGO! Manual

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292

Table B

Accessories Designation Order number

Software LOGO!Soft Comfort V4.0

Upgrade to

LOGO!Soft Comfort V4.0

6ED1058-0BA00-0YA0

6ED1058-0CA00-0YE0

Program mod-

ule (card) LOGO! Card 6ED1056-5CA00-0BA0

Switching mod-

ules LOGO!Contact 24 V

LOGO!Contact 230 V 6ED1057–4CA00–0AA0

6ED1057–4EA00–0AA0

Power modules LOGO!Power 12V/1.9A

LOGO!Power 12V/4.5A

LOGO!Power 24V/1.3A

LOGO!Power 24V/2.5A

6EP1321–1SH01

6EP1322–1SH01

6EP1331–1SH01

6EP1332–1SH41

Others PC cable

Manual 6ED1057–1AA00–0BA0

6ED1050–1AA00–0BE5

Order numbers

293

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A5E00228550-01

F Abbreviations

AM Analog module

B1 Block number B1

BN Block Number

C LOGO! device designation: integrated clock

CM Communication Module

Cnt Count = Counter input

Co Connector

Dir Direction (of count, for example)

DM Digital Module

En Enable = switching on

(clock generators, for example)

Fre Input for frequency signals to be analyzed

GF Basic Functions

Inv Input for inverting the output signal

No Cam (parameter of the timer)

o in LOGO! designations: without display

Par Parameter

R Reset input

R in LOGO! designations: Relay outputs

Ral Reset all = Input for resetting all internal values

S Set (latching relay, for example)

SF Special functions

SU Subunit

T Time = parameter

Trg Trigger (parameter)

0BA4 devices: the latest LOGO! Basic version, described in

this Manual.

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294

Order numbers

295

LOGO! Manual

A5E00228550-01

Index

Abbreviations, 293

AM. See Analog module

Amplifier, analog, 173

Analog

comparator, 165

values, 106

Analog amplifier, 173

Analog differential trigger, 161

Analog module, 2, 7

Analog threshold trigger, 158

Analog value monitoring, 170

AND, 95

Applications, 221

AS interface, 2, 243

Asynchronous pulse generator,

128

Basic functions, 93

AND, 95

with edge, 96

NAND, 97

with edge, 98

NOR, 100

NOT, 101

OR, 99

XOR, 101

Basics on special functions, 102

BF, 89

Blank outputs, 40

blank outputs, 91

Block, 42

deleting, 74

block groups, 75

inserting, 69

number, 42

assigning, 43

BN, 89

Cap, 17

Card. See Program module

(card)

CE label, 10

Certification, 9

Character set, 60

Circuit diagram, 45

Circuit program, input, 54

circuit program, 84

deleting, 77

Circuit program name, assigning,

Circuit programs

archiving, 203

reproduce, 203

send by mail, 203

Closing the programming mode,

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296

CM. See Communications mo

dule

Co, 89, 90

Communication module, AS in

terface, 243

Communications module, 2

AS interface, 2, 7

Compatibility, Versions, 204

Connecting

Inputs, 25

outputs, 31

Connector, 17

Connectors, 39, 90

blank, 40

hi, 41

inputs, 41

lo, 41

LOGO!'s, 40

open, 92

outputs, 41

unused, 46

x, 40, 41, 46, 103

Constants, 90

Control panel, 4, 5

Conversion, Summertime and

wintertime, 78

Correcting typing errors, 76

Counter

Operating hours, 150

Up/down, 146

CSA, 9

cULus , 9

Cursor, 49

Cursor keys, 40, 92, 184

Cursor movement, 49

Cycle time, 283

Demo versions, 217

Device types, LOGO!, 2

Digital module, 2, 7

Dimensions, 16

DIN rail, 16

Display, 43

Display view, 43

Disposal, 10

DM. See Digital module

Earth connection, 24

Edge evaluation, 96, 98

Editing, 69

Example

Air-conditioning system, 234

Automatic door, 227

Factory door, 239

factory door

controlling, 243

Monitoring, 243

further options, 255

lighting

corridor, 223

stairway, 223

Luminous rows, 247

Service water pump, 251

Index

297

LOGO! Manual

A5E00228550-01

exclusive OR, 101

Expansion modules, 2

Analog module, 2, 41

Communications module, 2

Digital module, 41

digital module, 2

Operating state, 36

expansion modules, 39

Flag blocks, 91

FM, 9

Four golden rules, 48

Function blocks, 42

Functions, 89

Gain, 106

GF, 93

Golden rules, 48

Guidelines, 11

Hiding, 72

high-speed counting, 27

Hours counter, 150

Reading the MN and OT va

lues, 153

Hysteresis, 169

Inputs, 90

Analog inputs, 27, 90

connection, 25

Cursor keys, 40, 92

Digital Inputs, 90

Groups, 25

inverting, 59, 93, 109

unused, 46

inputs, High-speed inputs, 27

Inserting, 69

Installation guidelines, 11

Interlock, 18, 20

Interpulse, width, 129

Inverter, 101

Latching relay, 175

LCD, 4, 5

LED, 287

Levels, 92

List

BF, 89

BN, 89

Co, 89, 90

SF, 89, 109

List , GF, 93

Logic module, 1

Logical inputs, 103

LOGO!

connecting to PC, 218

Index

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A5E00228550-01

298

Guidelines, 11

identifying, 7

Installing, 16

Operating states, 36

removing, 16

Structure of, 4

switching on, 33

Versions, 8

wiring, 23

LOGO! menus, 50

LOGO! software, 215

LOGO!Soft Comfort, 216

Memory

areas, 84

free, 88

limitation, 84

requirements, 85

space, 84

Menu structure, 289

Menus

Main menu, 50

Parameter assignment menu,

Programming menu, 50

Real-time clock menu, 50

Transfer menu, 50

Message texts, 179

Character set, 184

Mode

Parameter assignment, 194

parameter assignment, 50

PC-LOGO, 218

programming, 50

Mounting

DIN rail mounting, 17

Drilling template, 22

Wall-mounting, 21

Multiple function switch, 135

Name, 60

NAND, 97

Negation, 101

of a BF input, 93

of an input, 59

of an SF input, 109

NOR , 100

NOT , 101

NOT AND, 97

NOT OR, 100

Off-delay, 117

Off-time, 140

Offset, 106

On-/Off-delay, 119

On-delay, 113

retentive, 121

On-time, 140

Open connectors, 92

Operating

characteristics, 286

Index

299

LOGO! Manual

A5E00228550-01

Status indication, 287

Operating mode

Changing the operating mode,

Programming mode, 51

OR, 99

Order numbers, 291

Outputs, 90

Analog outputs, 91

blank, 40, 91

connecting, 31

Digital outputs, 90

Parameter, 196

'Set Param', 195

Inputs, 104

selecting, 197

setting, 193

T, 104

Parameter assignment, 71

Parameter assignment menu, 194

Parameter assignment screen

form, 139, 181

Parameter protection, 106

Parameters, modifying, 198

parameters, showing/hiding, 72

Password

assigning, 61

changing, 63

deactivating, 64

wrong, 65

PC cable, 218

USB, 218

PC-LOGO, 218

Planning, 49

Power

off, 34

On, 33

on, 34

switch, 33

Power supply, connecting, 23

Program memory, 84

Program chart, 44

Program cycle, 283

Program module (card)

'Card --> LOGO', 213

'CopyProtect', 206

'LOGO --> Card', 210

copying, 212

Enabling the security function,

207

inserting, 208, 209

removing, 208, 209

Security function, 205

Program name

change, 61

character set, 60

read, 195

Programs

'Clear Prg', 77

'Edit Name', 60

'Edit Prg', 52

'Password', 61

modifying, 68

Protection mode, 72

Pulse

Pause, 126

width, 126

width , 129

Index

LOGO! Manual

A5E00228550-01

300

pulse generator, Asynchronous ,

128

Pulse output, 123

Pulse relay, 176

Random generator, 130

Recycling, 10

Relay outputs, 31, 273

service life, 273

switching capacity, 273

Removal, 19

Resources, 84

Retentive memory, 84

Retentive on-delay, 121

Retentivity, 105

enabling/disabling, Retentivity

setting, 72

Rules, Four golden, 48

RUN, 'Start', 66

Sensor Characteristics, 25

Sensor connections, 28

Set clock, 'Set Clock', 201

Setting, time, 72

Setting the date, 201

Setting the time-of-day, 201

'Set clock', 195

Setup, 13

Maximum setup, 13

with different voltage classes,

SF, 89, 109

SFs, Delay, On, 113

Shift register, 190

Shift register bits, 40, 92

Showing, 72

Signal status transitions, 27

Simulation, 215

Size of a circuit, 84

Softkey, 186

Software, 215

Solid-state outputs, 32

Special functions, 109

Analog amplifier, 173

Analog Comparator, 165

Analog differential trigger, 161

Analog threshold trigger, 158

Analog value monitoring, 170

Basics, 102

Counter

Hours counter, 150

Up/down, 146

Delay

Off, 117

On/Off, 119

delay, ret. on, 121

Message texts, 179

Pulse generator, asynchronous,

128

Random generator, 130

Relay, Latch, 175

Index

301

LOGO! Manual

A5E00228550-01

relay, Pulse, 176

Shift register, 190

Softkey, 186

Switch

Comfort, 135

Stairway lighting, 132

Threshold trigger, Frequency,

155

Timer

Week, 138

Year, 143

Trigger, Analog threshold, 158

Wiping relay

edge triggered, 125

Pulse output, 123

Stairway lighting switch, 132

Start, 66

Startup characteristics, 286

Startup flag, 92

Stop, 195

Subunits, 16

Summertime, 78

Summertime/Wintertime Con

version, 'S/W Time', 78

Summertime/wintertime conver

sion, 78

disabling, 82

enabling, 79

user-define parameters, 81

Switch

Multiple function, 135

Stairway lighting, 132

Switched current, maximum, 32

Symbols, 7

Synchronization, 83

'Sync', 83

enabling, 83

T, Parameter, 105

Technical data, 259

general, 259

LOGO! 12..., 270

LOGO! 230...., 261

LOGO! 24/24o, 264

LOGO! 24RC/24RCo, 267

LOGO! AM 2 PT100, 275

LOGO! AM2, 274

LOGO! DM8 12/24R, 270

LOGO! DM8 230R, 261

LOGO! DM8 24, 264

LOGO! DM8 24R, 267

LOGO!Contact, 281

LOGO!Power 12 V, 277

Threshold trigger, Frequencies,

155

Time, Accuracy of, 104

Time response, 104

Timebase, 71, 104, 113

Timer, 1

accuracy, 105

Timing inaccuracy , 105

Trigger, Analog threshold, 158

trigger, Analog, Differential, 161

type of equipment, LOGO!, 2

Index

LOGO! Manual

A5E00228550-01

302

Unused connectors, 46

unused connectors, 40

Unused inputs, 46

Up/down counter, 146

Update, 217

Upward compatibility, 204

USB, 218

Verification, 73

Voltage levels , 92

Voltage supply, connecting, Cir

cuit protection, 24

Weekday, 139

Weekly timer, 7, 140

Examples, 141

setting, 140

Weekly timer , 138

Wintertime, 78

Wiping relay

edge triggered, 125

Pulse output, 123

Wire ferrules, 23

without display, 285

creating a circuit program, 37

PC-LOGO mode, 218

reading current data, 287

XOR , 101

Yearly timer, 143

Zero offset, 106

Index

A5E00324307-01

Produktinformation

07.2004

Produktinformation zum Handbuch LOGO!; ab Ausgabe 06/2003

(A5E00228104-01)

Vorbemerkung

Diese Produktinformation enthält wichtige Informationen zu LOGO!

Sie ist als separater Bestandteil aufzufassen und in Zweifelsfällen in der Verbind-

lichkeit anderen Aussagen in Handbüchern und Katalogen übergeordnet.

Diese Produktinformation enthält die Ergänzungen für die LOGO!-Erweiterungs-

module DM16 24, DM16 24R und DM16 230R.

2Produktinformation LOGO!

A5E00324307-01

1.1 Welche Erweiterungsmodule gibt es?

•LOGO! Digitalmodule DM8... gibt es für 12 V DC, 24 V AC/DC und

115...240 V AC/DC mit 4 Eingängen und 4 Ausgängen.

•LOGO! Digitalmodule DM16... gibt es für 24 V DC und 115...240 V AC/DC mit

8 Eingängen und 8 Ausgängen.

•LOGO! Analogmodule gibt es für 12 V DC und 24 V DC mit 2 Analogeingängen

bzw. mit 2 Pt100-Eingängen.

•LOGO! Kommunikationsmodule (CM), wie z.B. Kommunikationsmodul AS-In-

terface, das in einer eigenen Dokumentation beschrieben wird.

Digital- und Analogmodule sind in 2 bzw. 4 TE integriert und besitzen jeweils zwei Er-

weiterungsschnittstellen, so dass an jedes ein weiteres Modul angeschlossen sein

kann.

1.2 So ist LOGO! aufgebaut

LOGO! Erweiterungsmodul

(z.B.: DM16 24R)

Anzeige des Zustandes

RUN/STOP

Schieber

Mechanische Codierung –

Stifte

Erweiterungsschnitt-

stelle

3Ausgänge

Spannungsversorgung

Eingänge

8Mechanische Codierung –

Buchsen

Q1 Q2

L+ M I2 I3 I4I1

RUN/STOP

Q5 Q8

I5 I6 I8I7

1212 1212

121212

SymboleDigitalmodul verfügt über 4 Digitaleingänge und 4 Digitalausgänge

Digitalmodul verfügt über 8 Digitaleingänge und 8 Digitalausgänge

Produktinformation LOGO!

A5E00324307-01

1.3 Erweiterungsmodule

An LOGO! können folgende Erweiterungsmodule angeschlossen werden:

Symbol Bezeichnung Versorgung Eingänge Ausgänge

LOGO! DM 8 12/24R 12/24 V DC 4 Digital 4 Relais je 5A

LOGO! DM 8 24 24 V DC 4 Digital 4 Transistor

24V / 0,3A

LOGO! DM 8 24R (3) 24 V AC/DC 4 Digital 4 Relais je 5A

LOGO! DM 8 230R 115...240 V AC/DC 4 Digital (1) 4 Relais je 5A

LOGO! DM 16 24 24 V DC 8 Digital 8 Transistor

24V / 0,3A

LOGO! DM 16 24R 24 V DC 8 Digital 8 Relais je 5A

LOGO! DM 16 230R 115...240 V AC/DC 8 Digital (4) 8 Relais je 5A

LOGO! AM 2 12/24 V DC 2 Analog

0 ... 10V oder

0 ... 20mA (2)

keine

LOGO! AM 2 PT100 12/24 V DC 2 Pt100

–50 °C bis

+200 °C

keine

(1): Keine unterschiedlichen Phasen innerhalb der Eingänge erlaubt.

(2): 0 ... 10V, 0 ... 20 mA sind wahlweise anschließbar.

(3): Digitaleingänge können wahlweise P-schaltend oder N-schaltend

betrieben werden.

(4): Eingänge in zwei Gruppen von 4. Innerhalb der Gruppe nur eine gleiche

Phase, zwischen den Gruppen verschiedene Phasen möglich.

1.4 Aufbau mit unterschiedlichen Spannungsklassen

Regeln Digitalmodule können Sie nur an Geräte der gleichen Spannungsklasse anschließen.

Analogmodule und Kommunikationsmodule können Sie an Geräte mit beliebiger

Spannungsklasse anschließen.

Sie können ohne eine Änderung des Schaltprogramms zwei gleiche DM8-Erweite-

rungsmodule durch ein gleichartiges DM16-Erweiterungsmodul ersetzen (und umge-

kehrt).

Achtung

Zwei DM8 12/24R können nur bei einer Versorgungsspannung von 24 V DC gegen

ein DM16 24R getauscht werden.

Zwei DM8 24R können nur in der Betriebsart DC, P-schaltend gegen ein DM16 24R

getauscht werden.

4Produktinformation LOGO!

A5E00324307-01

Übersicht:

Erweiterungsmodul an LOGO! Basic anschließen

LOGO!

Erweiterungsmodule

Basic DM8 12/24R,

DM16 24R DM8 24,

DM16 24 DM8 24R DM8 230R,

DM16 230R AM2,

AM2 PT100 CM

LOGO! 12/24RC x x x – x x

LOGO! 24 x x x – x x

LOGO! 24RC x x x – x x

LOGO! 230RC – – – x x x

LOGO! 12/24RCo x x x – x x

LOGO! 24o x x x – x x

LOGO! 24RCo x x x – x x

LOGO! 230RCo – – – x x x

Übersicht:

Erweiterungsmodul an Erweiterungsmodul anschließen

Erweiterungs-

Weitere Erweiterungsmodule

modul DM8 12/24R,

DM16 24R DM8 24,

DM16 24 DM 8 24R DM8 230R,

DM16 230R AM2,

AM2 PT100 CM

DM 8 12/24R,

DM 16 24R x x x – x x

DM 8 24,

DM 16 24 x x x – x x

DM 8 24R x x x – x x

DM 8 230R,

DM 16 230R – – – x x x

AM2 / AM2 PT100 x x x – x x

CM x x x – x x

Produktinformation LOGO!

A5E00324307-01

1.5 Abmessungen

LOGO! besitzt die Abmessungen für Installationsgeräte gemäß DIN 43880.

LOGO! kann auf eine 35 mm breite Hutschiene nach DIN EN 50022 aufgeschnappt

oder an die Wand montiert werden.

Breite von LOGO!:

•LOGO! Basic ist 72 mm breit, das entspricht 4 Teilungseinheiten.

•LOGO! Erweiterungsmodule sind 36 mm bzw. 72 mm (DM16...) breit, das ent-

spricht 2 bzw. 4 Teilungseinheiten.

1.6 Eingänge von LOGO! anschließen

Sensoreigenschaften für LOGO!

LOGO! DM16

24 R LOGO! DM16

24 LOGO! DM16

230 R (AC) LOGO! DM16

230 R (DC)

Schaltzustand 0 < 5 V DC < 5 V DC < 40 V AC < 30 V DC

Eingangsstrom < 1 mA < 1 mA < 0,05 mA < 0,05 mA

Schaltzustand 1 > 12 V DC > 12 V DC > 79 V AC > 79 V DC

Eingangsstrom > 2 mA > 2 mA > 0,08 mA > 0,08 mA

Achtung

Die Digitaleingänge der LOGO! 230 RC/RCo und des Erweiterungsmoduls

DM16 230R sind in zwei Gruppen aufgeteilt, die jeweils über 4 Eingänge verfügen.

Innerhalb einer Gruppe muss an allen Eingängen die gleiche Phase verwendet

werden. Verschiedene Phasen sind nur zwischen den Gruppen möglich.

Beispiel: I1 bis I4 an Phase L1, I5 bis I8 an Phase L2.

Bei LOGO! DM8 230R dürfen innerhalb der Eingänge keine unterschiedlichen

Phasen angeschlossen werden.

Sensoranschlüsse

Anschließen von Glimmlampen, 2-Draht-Näherungsschalter (Bero) an LOGO!

230RC/230RCo oder LOGO! DM8 230R (AC) und LOGO! DM16 230R (AC)

NL1

C3SB1420-3D

Bestellbezeichnung für C:

Siemens

Schaltgeräte & Systeme

X-Kondensator 2,5 kV, 100 nF

6Produktinformation LOGO!

A5E00324307-01

1.7 Technische Daten

Allgemeine Technische Daten

Kriterium Prüfung nach Werte

LOGO!Basic

Abmessungen BxHxT 72 x 90 x 55 mm

Gewicht ca. 190 g

Montage auf Hutschiene 35 mm

4 Teilungseinheiten breit

oder W andmontage

LOGO! Erweiterungsmodule

DM8..., AM...

Abmessungen BxHxT 36 x 90 x 53 mm

Gewicht ca. 90 g

Montage auf Hutschiene 35 mm

2 Teilungseinheiten breit

oder W andmontage

LOGO! Erweiterungsmodule

DM16...

Abmessungen BxHxT 72 x 90 x 53 mm

Gewicht ca. 190 g

Montage auf Hutschiene 35 mm

4 Teilungseinheiten breit

oder W andmontage

Klimatische Umgebungsbedingungen

Umgebungstemperatur

waa

rechter Einbau Kälte nach IEC

60068-2-1 0 ... 55 °C

waagrechter Einbau

senkrechter Einbau Wärme nach

IEC 60068-2-2

...

55 C

0 ... 55 °C

Lagerung / Transport -40 °C ... +70 °C

Relative Feuchte IEC 60068-2-30 von 10 bis 95%

keine Betauung

Luftdruck 795 ... 1080 hPa

Schadstoffe IEC 60068-2-42

IEC 60068-2-43 SO2 10 cm3 /m3, 4 Tage

H2S 1 cm3 /m3, 4 Tage

Mechanische Umgebungsbedingungen

Schutzart IP 20

Schwingungen IEC 60068-2-6 5 ... 9 Hz (konstante Ampli-

tude 3,5 mm)

9 ... 150 Hz (konstante Be-

schleunigung 1 g)

Schock IEC 60068-2-27 18 Schocks

(Halbsinus 15g/11ms)

Kippfallen IEC 60068-2-31 Fallhöhe 50 mm

Freier Fall, verpackt IEC 60068-2-32 1 m

Produktinformation LOGO!

A5E00324307-01

Kriterium WertePrüfung nach

Elektromagnetische Verträglichkeit (EMV)

Störaussendung EN 55011/A

EN 55022/B

EN 50081-1

(Wohnbereich)

Grenzwertklasse B Gruppe 1

Elektrostatische Entladung IEC 61000-4-2

Schärfegrad 3 8 kV Luftentladung

6 kV Kontaktentladung

Elektromagnetische Felder IEC 61000-4-3 Feldstärke 10 V/m

HF-Bestromung auf Leitungen und

Leitungsschirmen IEC 61000-4-6 10 V

Burst Impulse IEC 61000-4-4

Schärfegrad 3 2 kV (Versorgungs- und Si-

gnalleitungen)

Energiereicher Einzelimpuls

(Surge)

(nur bei LOGO! 230....)

IEC 61000-4-5

Schärfegrad 3 1 kV (Versorgungsleitungen)

symmetrisch

2 kV (Versorgungsleitungen)

asymmetrisch

Angaben über IEC- / VDE-Sicherheit

Bemessung der Luft- u. Kriech-

strecken IEC 60664,

IEC 61131-2, EN 50178

cULus nach UL 508,

CSA C22.2 No. 142

Bei LOGO! 230R/RC

auch VDE 0631

erfüllt

Isolationsfestigkeit IEC 61131-2 erfüllt

8Produktinformation LOGO!

A5E00324307-01

Technische Daten: LOGO! DM16 230R

LOGO! DM16 230R

Stromversorgung

Eingangsspannung 115 ... 240 V AC/DC

Zulässiger Bereich 85 ... 265 V AC

100 ... 253 V DC

Zulässige Netzfrequenz: 47 ... 63 Hz

Stromaufnahme

•115 V AC 10 ... 60 mA

•240 V AC 10 ... 40 mA

•115 V DC 5 ... 25 mA

•240 V DC 5 ... 20 mA

Spannnungsausfallüberbrückung

•115 V AC/DC

typ 10 ms

•

V AC/DC

typ.

•

240 V AC/DC

typ 20 ms

•240 V AC/DC

20 ms

Verlustleistung bei

•115 V AC 1,1 ... 4,5 W

•240 V AC

2,4 ... 5,5 W

•115 V DC

0,6 ... 2,9 W

•240 V DC 1,2 ... 4,8 W

Puf ferung der Uhr bei 25 _C

Ganggenauigkeit der Echtzeituhr

Digitaleingänge

Anzahl 8

Potentialtrennung nein

Eingangsspannung L1

•Signal 0

•Signal 1

•Signal 0

•Signal 1

< 40 V AC

> 79 V AC

< 30 V DC

> 79 V DC

Eingangsstrom bei

•Signal 0 < 0,05 mA

•Signal 1 > 0,08 mA

Verzögerungszeit bei

•0 nach 1 typ. 50 ms

•1 nach 0

typ. 50 ms

Leitungslänge (ungeschirmt) 100 m

Digitalausgänge

Anzahl 8

Typ der Ausgänge Relaisausgänge

Potentialtrennung ja

in Gruppen zu 1

Ansteuerung eines Digitaleingangs ja

Produktinformation LOGO!

A5E00324307-01

LOGO! DM16 230R

Dauerstrom Ith max. 5 A je Relais

Glühlampenlast (25.000 Schaltspiele) bei

230/240 V AC

115/120 V AC 1000 W

500 W

Leuchtstoffröhren mit elektr. Vorschaltgerät (25.000

Schaltspiele) 10 x 58 W (bei 230/240 V AC)

Leuchtstoffröhren konventionell kompensiert (25.000

Schaltspiele) 1 x 58 W (bei 230/240 V AC)

Leuchtstoffröhren unkompensiert (25.000 Schalt-

spiele) 10 x 58 W (bei 230/240 V AC)

Kurzschlussfest cos 1 Leistungsschutz B16

600A

Kurzschlussfest cos 0.5 bis 0.7 Leistungsschutz B16

900A

Derating kein; im gesamten Temperaturbereich

Parallelschaltung von Ausgängen zur Leistungser-

höhung nicht zulässig

Absicherung eines Ausgangsrelais (falls gewünscht) max. 16 A,

Charakteristik B16

Schaltfrequenz

mechanisch 10 Hz

Ohmsche Last/Lampenlast 2 Hz

Induktive Last 0,5 Hz

10 Produktinformation LOGO!

A5E00324307-01

Technische Daten: LOGO! DM16 24

LOGO! DM16 24

Stromversorgung

Eingangsspannung 24 V DC

Zulässiger Bereich 20,4 ... 28,8 V DC

Verpolschutz ja

Zulässige Netzfrequenz

Stromaufnahme aus 24 V 30 ... 45 mA

0,3 A je Ausgang

Spannnungsausfallüberbrückung

Verlustleistung bei 24 V 0,8 ... 1,7 W

Puf ferung der Uhr bei 25 _C

Ganggenauigkeit der Echtzeituhr

Digitaleingänge

Anzahl 8

Potentialtrennung nein

Eingangsspannung L+

•Signal 0 < 5 V DC

•Signal 1 > 12 V DC

Eingangsstrom bei

•Signal 0 < 1 mA

•Signal 1 > 2 mA

Verzögerungszeit bei

•0 nach 1 typ. 1,5 ms

•1 nach 0

typ. 1,5 ms

Leitungslänge (ungeschirmt) 100 m

Digitalausgänge

Anzahl 8

Typ der Ausgänge Transistor,

P-schaltend

Potentialtrennung nein

in Gruppen zu

Ansteuerung eines Digitaleingangs ja

Ausgangsspannung ¢ Versorgungsspannung

Ausgangsstrom max. 0,3 A

Dauerstrom Ith

Glühlampenlast (25.000 Schaltspiele) bei

Leuchtstoffröhren mit elektr. Vorschaltgerät (25.000

Schaltspiele)

Leuchtstoffröhren konventionell kompensiert (25.000

Schaltspiele)

Leuchtstoffröhren unkompensiert (25.000 Schalt-

spiele)

Produktinformation LOGO!

A5E00324307-01

LOGO! DM16 24

Kurzschlussfest und überlastsicher ja

Kurzschlussstrombegrenzung ca. 1 A

Derating kein; im gesamten Temperaturbereich

Kurzschlussfest cos 1

Kurzschlussfest cos 0.5 bis 0.7

Parallelschaltung von Ausgängen zur Leistungser-

höhung nicht zulässig

Absicherung eines Ausgangsrelais (falls gewünscht)

Schaltfrequenz

mechanisch

elektrisch 10 Hz

Ohmsche Last/Lampenlast 10 Hz

Induktive Last 0,5 Hz

12 Produktinformation LOGO!

A5E00324307-01

Technische Daten: LOGO! DM16 24R

LOGO! DM16 24R

Stromversorgung

Eingangsspannung 24 V DC

Zulässiger Bereich 20,4 ... 28,8 V DC

Verpolschutz ja

Stromaufnahme

•24 V DC 30 ... 90 mA

Spannnungsausfallüberbrückung

•24 V DC typ. 5 ms

Verlustleistung

•24 V DC 0,7 ... 2,5 W

Puf ferung der Uhr bei 25 _C

Ganggenauigkeit der Echtzeituhr

Potentialtrennung nein

Digitaleingänge

Anzahl 8

Potentialtrennung nein

Eingangsspannung L+

•Signal 0 < 5 V DC

•Signal 1 > 12 V DC

Eingangsstrom bei

•Signal 0 < 1 mA

•Signal 1 > 2 mA

Verzögerungszeit bei

•0 nach 1 typ. 1,5 ms

•1 nach 0

typ. 1,5 ms

Leitungslänge (ungeschirmt) 100 m

Digitalausgänge

Anzahl 8

Typ der Ausgänge Relaisausgänge

Potentialtrennung ja

in Gruppen zu 1

Ansteuerung eines Digitaleingangs ja

Ausgangsspannung

Ausgangsstrom

Dauerstrom Ith (je Klemme) max. 5 A je Relais

Glühlampenlast (25.000 Schaltspiele) 1000 W

Leuchtstoffröhren mit elektr. Vorschaltgerät (25.000

Schaltspiele) 10 x 58 W

Leuchtstoffröhren konventionell kompensiert (25.000

Schaltspiele) 1 x 58 W

Produktinformation LOGO!

A5E00324307-01

LOGO! DM16 24R

Leuchtstoffröhren unkompensiert (25.000 Schalt-

spiele) 10 x 58 W

Kurzschlussfest und überlastsicher

Kurzschlussstrombegrenzung

Derating kein; im gesamten Temperaturbereich

Kurzschlussfest cos 1 Leistungsschutz B16

600A

Kurzschlussfest cos 0.5 bis 0.7 Leistungsschutz B16

900A

Parallelschaltung von Ausgängen zur Leistungser-

höhung nicht zulässig

Absicherung eines Ausgangsrelais (falls gewünscht) max. 16 A,

Charakteristik B16

Schaltfrequenz

mechanisch 10 Hz

elektrisch

Ohmsche Last/Lampenlast 2 Hz

Induktive Last 0,5 Hz

1.8 Bestellnummern

Tabelle A

Variante Bezeichnung Bestellnummer

Basic LOGO! 12/24RC *

LOGO! 24 *

LOGO! 24RC (AC)

LOGO! 230RC

6ED1 052-1MD00-0BA4

6ED1 052-1CC00-0BA4

6ED1 052-1HB00-0BA4

6ED1 052-1FB00-0BA4

Basic

ohne Display

(Pure)

LOGO! 12/24RCo *

LOGO! 24o *

LOGO! 24RCo (AC)

LOGO! 230RCo

6ED1 052-2MD00-0BA4

6ED1 052-2CC00-0BA4

6ED1 052-2HB00-0BA4

6ED1 052-2FB00-0BA4

Digitalmodule LOGO! DM 8 12/24R

LOGO! DM 8 24

LOGO! DM 8 24R

LOGO! DM 8 230R

LOGO! DM 16 24

LOGO! DM 16 24R

LOGO! DM 16 230R

6ED1 055-1MB00-0BA1

6ED1 055-1CB00-0BA0

6ED1 055-1HB00-0BA0

6ED1 055-1FB00-0BA1

6ED1055-1CB10-0BA0

6ED1055-1NB10-0BA0

6ED1055-1FB10-0BA0

Analogmodule LOGO! AM 2

LOGO! AM 2 PT100 6ED1 055-1MA00-0BA0

6ED1 055-1MD00-0BA0

*: zusätzlich mit Analogeingängen

14 Produktinformation LOGO!

A5E00324307-01

Bestellnummern

A5E00324307-01

Product information

07.2004

Product Information on Manual LOGO!; from Edition 06/2003

(A5E00228550-01)

Preliminary remarks

This Product Information contains additional information about LOGO!

It is a separate component and should be considered more up-to-date than the

information in the manuals and catalogs if uncertainties arise.

This Product Information provides information about LOGO! expansion modules

DM16 24, DM16 24R and DM16 230R.

16 Product information LOGO!

A5E00324307-01

2.1 Which expansion modules are available?

•LOGO! digital modules DM8... are available for operation with 12 V DC, 24 V

AC/DC and 115...240 V AC/DC, and are equipped with four inputs and four

outputs.

•LOGO! digital modules DM16... are available for operation with 24 V DC and

115...240 V AC/DC, and are equipped with eight inputs and eight outputs.

•LOGO! analog modules are available for operation with

12 V DC and 24 V DC, and are equipped with two analog inputs or two Pt100

inputs.

•LOGO! communications modules (CM), for example the communications

module AS interface, that is described in a separate documentation.

The digital/analog modules are integrated in two or four subunits. Each one is

equipped with two expansion interfaces for connecting additional modules.

2.2 The LOGO! structure

LOGO! expansion module

(e.g.: DM16 24R)

RUN/STOP indicator

Slide

Mechanical coding

pins

Expansion interface

3Outputs

Power supply

Inputs

8Mechanical coding

sockets

Q1 Q2

L+ M I2 I3 I4I1

RUN/STOP

Q5 Q8

I5 I6 I8I7

1212 1212

121212

SymbolsThe digital module is equipped with 4 digital inputs and 4 digital outputs

The digital module is equipped with 8 digital inputs and 8 digital outputs

Product information LOGO!

A5E00324307-01

2.3 Expansion modules

The following expansion modules can be connected to the LOGO!:

Symbol Name Power supply Inputs Outputs

LOGO! DM 8 12/24R 12/24 V DC 4 digital 4 relays (5A)

LOGO! DM 8 24 24 V DC 4 digital 4 solid state

24V / 0.3A

LOGO! DM 8 24R (3) 24 V AC/DC 4 digital 4 relays (5A)

LOGO! DM 8 230R 115...240 V AC/DC 4 digital (1) 4 relays (5A)

LOGO! DM 16 24 24 V DC 8 digital 8 solid state

24V / 0.3A

LOGO! DM 16 24R 24 V DC 8 digital 8 relays (5A)

LOGO! DM 16 230R 115...240 V AC/DC 8 digital (4) 8 relays (5A)

LOGO! AM 2 12/24 V DC 2 analog

0 ... 10V or 0

... 20mA (2)

none

LOGO! AM 2 PT100 12/24 V DC 2 Pt100

–50 °C to

+200 °C

none

(1): Different phases are not allowed within the inputs.

(2): 0 ... 10 V, 0 ... 20 mA can be connected optionally.

(3): Digital inputs can be operated either with P or with N action.

(4): Two groups consisting of 4 inputs each. Each group must be connected to

the same phase. It is possible to interconnect groups with a different phase.

2.4 Setup with different voltage classes

Rules Digital modules can only be connected to devices of the same voltage class.

You may connect analog and communications modules to devices of any voltage

class.

You may replace two similar DM8 expansion modules by one appropriate DM16 ex-

pansion module (and vice versa) without having to change the circuit program.

Note

Two DM8 12/24R may be replaced by one DM16 24R only if operated with a power

supply of 24 V DC.

Two DM8 24R may be replaced by one DM16 24R only if operated with DC and

P action.

18 Product information LOGO!

A5E00324307-01

Overview:

Connecting an expansion module to LOGO! Basic

LOGO!

Expansion modules

Basic DM8 12/24R,

DM16 24R DM8 24,

DM16 24 DM8 24R DM8 230R,

DM16 230R AM2,

AM2 PT100 CM

LOGO! 12/24RC x x x – x x

LOGO! 24 x x x – x x

LOGO! 24RC x x x – x x

LOGO! 230RC – – – x x x

LOGO! 12/24RCo x x x – x x

LOGO! 24o x x x – x x

LOGO! 24RCo x x x – x x

LOGO! 230RCo – – – x x x

Overview:

Connecting a further expansion module to an expansion module

Expansion

Further Expansion modules

module DM8 12/24R,

DM16 24R DM8 24,

DM16 24 DM 8 24R DM8 230R,

DM16 230R AM2,

AM2 PT100 CM

DM 8 12/24R,

DM 16 24R x x x – x x

DM 8 24,

DM 16 24 x x x – x x

DM 8 24R x x x – x x

DM 8 230R,

DM 16 230R – – – x x x

AM2 / AM2 PT100 x x x – x x

CM x x x – x x

Product information LOGO!

A5E00324307-01

2.5 Dimensions

The LOGO! installation dimensions are compliant with DIN 43880.

LOGO! can be snap-mounted to 35 mm DIN rails to EN 50022 or on the wall.

LOGO! width:

•LOGO! Basic has a width of 72 mm, which corresponds with 4 subunits.

•LOGO! expansion modules have a width of 36 mm or 72 mm (DM16...), which cor-

responds with 2 or 4 subunits.

2.6 Connecting LOGO! inputs

Sensor characteristics for LOGO!

LOGO! DM16

24 R LOGO! DM16

24 LOGO! DM16

230 R (AC) LOGO! DM16

230 R (DC)

Signal status 0 < 5 V DC < 5 V DC < 40 V AC < 30 V DC

Input current < 1 mA < 1 mA < 0.05 mA < 0.05 mA

Signal status 1 > 12 V DC > 12 V DC > 79 V AC > 79 V DC

Input current > 2 mA > 2 mA > 0.08 mA > 0.08 mA

Note

The digital inputs of LOGO! 230 RC/RCo and of expansion module DM16 230R are

divided into two groups, each consisting of four inputs. Within the same group, all

inputs must be operated on the same phase. Different phases are only possible

between the groups.

Example: I1 to I4 on phase L1, I5 to I8 on phase L2.

Inputs within the LOGO! DM8 230R may not be connected to different phases.

Sensor connections

Connecting glow lamps and 2-wire proximity switches (Bero) to LOGO!

230 RC/230 RCo or LOGO! DM8 230 R (AC) and LOGO! DM16 230R (AC)

NL1

C3SB1420-3D

Order number for C:

Siemens

Switchgear & Systems

X-capacitor 2.5 kV, 100 nF

20 Product information LOGO!

A5E00324307-01

2.7 Technical data

General technical data

Criterion Tested in accordance

with Values

LOGO!Basic

Dimensions (WxHxD) 72 x 90 x 55 mm

Weight Approx. 190 g

Installation on a 35 mm profile rail

4 module widths

or wall mounting

LOGO! expansion modules

DM8..., AM...

Dimensions (WxHxD) 36 x 90 x 53 mm

Weight Approx. 90 g

Installation on a 35 mm profile rail

2 module widths

or wall mounting

LOGO! expansion modules

DM16...

Dimensions (WxHxD) 72 x 90 x 53 mm

Weight Approx. 190 g

Installation on a 35 mm profile rail

4 module widths

or wall mounting

Climatic conditions

Ambient temperature

Horizontal installation

Low temperature to IEC

60068-2-1

0 ... 55

Horizontal installation

Vertical installation

60068 2 1

High temperature to

IEC 60068-2-2

...

55 C

0 ... 55 °C

Storage/shipping -40 °C ... +70 °C

Relative humidity IEC 60068-2-30 From 10 to 95 %

no condensation

Air pressure 795 ... 1080 hPa

Pollutants IEC 60068-2-42

IEC 60068-2-43 SO2 10 cm3 /m3, 4 days

H2S 1 cm3 /m3, 4 days

Ambient mechanical conditions

Protection mode IP20

Vibrations: IEC 60068-2-6 5 ... 9 Hz (constant amplitude

3.5 mm)

9 ... 150 Hz (constant accel-

eration 1 g)

Shock IEC 60068-2-27 18 shocks

(half-sine wave 15g/11 ms)

Drop IEC 60068-2-31 Drop height 50 mm

Free fall (packaged) IEC 60068-2-32 1 m

Electromagnetic compatibility (EMC)

Noise emission EN 55011/A

EN 55022/B

EN 50081-1

(domestic area)

Limit class B group 1

Product information LOGO!

A5E00324307-01

Criterion ValuesTested in accordance

with

Electrostatic discharge IEC 61000-4-2

Severity 3 8 kV air discharge

6 kV contact discharge

Electromagnetic fields IEC 61000-4-3 Field strength 10 V/m

HF currents on cables and cable

shielding IEC 61000-4-6 10 V

Burst pulses IEC 61000-4-4

Severity 3 2 kV (supply and signal lines)

High-energy surge pulse

(applies only to

LOGO! 230 ...)

IEC 61000-4-5

Severity 3 1 kV (power lines)

symmetrical

2 kV (power lines)

asymmetrical

Safety to IEC / VDE

Clearance and creepage distance

rating IEC 60664,

IEC 61131-2, EN 50178

cULus to UL 508, CSA

C22.2 No. 142

With LOGO!

230 R/RC,

also VDE 0631

Fulfilled

Insulation strength IEC 61131-2 Fulfilled

22 Product information LOGO!

A5E00324307-01

Technical data: LOGO! DM16 230R

LOGO! DM16 230R

Power supply

Input voltage 115 ... 240 V AC/DC

Permissible range 85 ... 265 V AC

100 ... 253 V DC

Permissible mains frequency 47 ... 63 Hz

Power consumption

•115 V AC 10 ... 60 mA

•240 V AC 10 ... 40 mA

•115 V DC 5 ... 25 mA

•240 V DC 5 ... 20 mA

Voltage failure buffering

•115 V AC/DC

typ 10 ms

•

V AC/DC

typ.

•

240 V AC/DC

typ 20 ms

•240 V AC/DC

20 ms

Power loss at

•115 V AC 1.1 ... 4.5 W

•240 V AC 2.4 ... 5.5 W

•115 V DC 0.6 ... 2.9 W

•240 V DC 1.2 ... 4.8 W

Backup of the real-time clock at 25 _C

Accuracy of the real-time clock

Digital inputs

Number 8

Electrical isolation No

Input voltage L1

•Signal 0

•Signal 1

•Signal 0

•Signal 1

< 40 V AC

> 79 V AC

< 30 V DC

> 79 V DC

Input current at

•Signal 0 < 0.05 mA

•Signal 1 > 0.08 mA

Delay time at

•0 to 1 typ. 50 ms

•1 to 0

typ. 50 ms

Line length (unshielded) 100 m

Digital outputs

Number 8

Output type Relay outputs

Electrical isolation Yes

In groups of 1

Control of a digital input Yes

Product information LOGO!

A5E00324307-01

LOGO! DM16 230R

Continuous current Ith max. 5 A per relay

Incandescent lamp load (25000 switching cycles) at

230/240 V AC

115/120 V AC 1000 W

500 W

Fluorescent tubes with ballast (25000 switching

cycles) 10 x 58 W (at 230/240 V AC)

Fluorescent tubes, conventionally compensated

(25000 switching cycles) 1 x 58 W (at 230/240 V AC)

Fluorescent tubes, uncompensated (25000 switch-

ing cycles) 10 x 58 W (at 230/240 V AC)

Short circuit-proof cos 1 Power protection B16

600A

Short-circuit proof cos

0.5 to 0.7 Power protection B16

900A

Derating None; across the entire temperature

range

Parallel output circuits for power increase Not permitted

Protection of output relay

(if desired) max. 16 A,

characteristic B16

Switching rate

Mechanical 10 Hz

Ohmic load/lamp load 2 Hz

Inductive load 0.5 Hz

24 Product information LOGO!

A5E00324307-01

Technical data: LOGO! DM16 24

LOGO! DM16 24

Power supply

Input voltage 24 V DC

Permissible range 20.4 ... 28.8 V DC

Reverse polarity protection Yes

Permissible mains frequency

Power consumption from 24 V DC 30 ... 45 mA

0.3 A per output

Voltage failure buffering

Power loss at 24 V 0.8 ... 1.7 W

Backup of the real-time clock at 25 _C

Accuracy of the real-time clock

Digital inputs

Number 8

Electrical isolation No

Input voltage L+

•Signal 0 < 5 V DC

•Signal 1 > 12 V DC

Input current at

•Signal 0 < 1 mA

•Signal 1 > 2 mA

Delay time at

•0 to 1 typ. 1.5 ms

•1 to 0

typ. 1.5 ms

Line length (unshielded) 100 m

Digital outputs

Number 8

Output type Transistor,

current-sourcing

Electrical isolation No

In groups of

Control of a digital input Yes

Output voltage ¢ Supply voltage

Output current max. 0.3 A

Continuous current Ith

Incandescent lamp load (25000 switching cycles) at

Fluorescent tubes with ballast (25000 switching

cycles)

Fluorescent tubes, conventionally compensated

(25000 switching cycles)

Fluorescent tubes, uncompensated (25000

switching cycles)

Product information LOGO!

A5E00324307-01

LOGO! DM16 24

Short circuit-proof and overload-proof Yes

Short-circuit current limitation Approx. 1 A

Derating None; across the entire temperature

range

Short circuit-proof cos 1

Short-circuit proof cos 0.5 to 0.7

Parallel output circuit for power increase Not permitted

Protection of output relay (if desired)

Switching rate

Mechanical

Electrical 10 Hz

Ohmic load/lamp load 10 Hz

Inductive load 0.5 Hz

26 Product information LOGO!

A5E00324307-01

Technical data: LOGO! DM16 24R

LOGO! DM16 24R

Power supply

Input voltage 24 V DC

Permissible range 20.4 ... 28.8 V DC

Reverse polarity protection Yes

Power consumption from 24 V DC 30 ... 90 mA

Voltage failure buffering

•24 V DC typ. 5 ms

Power loss at 24 V

•24 V DC 0.7 ... 2.5 W

Backup of the real-time clock at 25 _C

Accuracy of the real-time clock

Electrical isolation No

Digital inputs

Number 8

Electrical isolation No

Input voltage

•Signal 0 < 5 V DC

•Signal 1 > 12 V DC

Input current at

•Signal 0 < 1 mA

•Signal 1 > 2 mA

Delay time at

•0 to 1 typ. 1.5 ms

•1 to 0

typ. 1.5 ms

Line length (unshielded) 100 m

Digital outputs

Number 8

Output type Relay outputs

Electrical isolation Yes

In groups of 1

Control of a digital input Yes

Output voltage

Output current

Continuous current Ith max. 5 A per relay

Incandescent lamp load (25000 switching cycles) at 1000 W

Fluorescent tubes with ballast (25000 switching

cycles) 10 x 58 W

Fluorescent tubes, conventionally compensated

(25000 switching cycles) 1 x 58 W

Product information LOGO!

A5E00324307-01

LOGO! DM16 24R

Fluorescent tubes, uncompensated (25000

switching cycles) 10 x 58 W

Short circuit-proof and overload-proof

Short-circuit current limitation

Derating None; across the entire temperature

range

Short circuit-proof cos 1 Power protection B16

600A

Short-circuit proof cos 0.5 to 0.7 Power protection B16

900A

Parallel output circuit for power increase Not permitted

Protection of output relay (if desired) max. 16 A,

characteristic B16

Switching rate

Mechanical 10 Hz

Electrical

Ohmic load/lamp load 2 Hz

Inductive load 0.5 Hz

2.8 Order numbers

Table A

Variant Designation Order number

Basic LOGO! 12/24RC *

LOGO! 24 *

LOGO! 24RC (AC)

LOGO! 230RC

6ED1 052-1MD00-0BA4

6ED1 052-1CC00-0BA4

6ED1 052-1HB00-0BA4

6ED1 052-1FB00-0BA4

Basic

without display

(pure)

LOGO! 12/24RCo *

LOGO! 24o *

LOGO! 24RCo (AC)

LOGO! 230RCo

6ED1 052-2MD00-0BA4

6ED1 052-2CC00-0BA4

6ED1 052-2HB00-0BA4

6ED1 052-2FB00-0BA4

Digital modules LOGO! DM 8 12/24R

LOGO! DM 8 24

LOGO! DM 8 24R

LOGO! DM 8 230R

LOGO! DM 16 24

LOGO! DM 16 24R

LOGO! DM 16 230R

6ED1 055-1MB00-0BA1

6ED1 055-1CB00-0BA0

6ED1 055-1HB00-0BA0

6ED1 055-1FB00-0BA1

6ED1055-1CB10-0BA0

6ED1055-1NB10-0BA0

6ED1055-1FB10-0BA0

Analog modules LOGO! AM 2

LOGO! AM 2 PT100 6ED1 055-1MA00-0BA0

6ED1 055-1MD00-0BA0

*: Also with analog inputs

28 Product information LOGO!

A5E00324307-01

Bestellnummern