Preface, Contents
System Overview 1
Hardware Description and
Commissioning 2
Function Description 3
Overview of System Integration 4
SIMATIC S7 5
SIMATIC S5 6
Standard DP Master 7
Serial Coupling 8
Data Record Description 9
Connection of Digital Remote
Displays 10
SIWATOOL - Description and Use 11
Error Diagnostics and Treatment 12
Technical Specifications 13
Distribution/Hotline/Repairs/
Replacement Parts/Training 14
Index
Release 06/2005
(One and Two-Channel Model)
Equipment Manual
SIWAREX U
This manual contains notices which you should observe to ensure your own personal safety,
as well to protect the product and connected equipment. These notices are highlighted in the
manual by a warning triangle and are marked as follows to the level of danger.
!Danger
indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
!Warning
indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
!Caution
used with the safety alert symbol indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
Caution
used without safety alert symbol indicates a potentially hazardous situation which, if not
avoided, may result in property damage.
Notice
NOTICE used without the safety alert symbol indicates a potential situation which, if
not avoided, may result in an undesireable result or state.
The device/system may only be set up and operated in conjunction with this manual. Only quali-
fied personnel should be allowed to install and work on this equipment. Qualified persons are
defined as persons who are authorized to commission, to ground, and to tag circuits, equipment,
and systems in accordance with established safety practices and standards.
Note the following:
!Warning
This device and its components may only be used for the applications described in the cata-
log or technical description, and only in connection with devices or components from other
manufactorers which have been approved or recommended by Siemens.
This product can only function correctly and savely if it is transported, stored, set up, and instal-
led correctly, and operated and maintained as recommended.
SIMATICR and SIWAREXR are registered trademarks of Siemens AG.
Copyright Siemens AG 2005 All rights reserved
The reproduction, transmission or use of this document or its contents is not per-
mitted without express written authority. Offenders will be liable for damages. All
rights, including rights created by patent grant or registration of a utility model or
design, are reserved.
Disclaimer of Liability
We have checked the contents of this manual for agreement with the hardware and
software described. Since deviations cannot be precluded entirely, we cannot gua-
rantee full agreement. However, the data in the manual are reviewed regularly and
any necessary corrections included in subsequent editions. Suggestions for impro-
vement are welcomed.
Tecnical data subject to change.
Editor: A&D SE ES4
Publisher: A&D PI 14
Siemens Aktiengesellschaft Order No.
Safety Guidelines
Qualified Personnel
Correct Usage
Trademarks
i
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table of Contents
1 System Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Introduction 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Setup and Components of a Weighing Machine 1-8. . . . . . . . . . . . . . . .
1.3 Weighing Functions 1-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Hardware Description and Commissioning 2-1. . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Installing the SIWAREX U 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Mounting the Module on the Rail 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Connection and Wiring 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.1 Load Cell Connection 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.2 RS 232C Interface 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.3 TTY Interface 2-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Preparing the SIWAREX U for Operation 2-16. . . . . . . . . . . . . . . . . . . . . .
2.5 Assigning Parameters 2-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Function Description 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 A/D Conversion (Measured Value Acquisition) 3-2. . . . . . . . . . . . . . . . . .
3.2 Digital Filtering 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Weight Calculation and Adjustment 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 Setting to Zero 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5 Limit Values 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6 Operational Reliability 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.7 Special Functions 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Overview of System Integration 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 System Integration 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 SIMATIC S7 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Diagnostic Capabilities in the SIMATIC S7 Program 5-4. . . . . . . . . . . . .
5.2 Evaluation of the Process Interrupts 5-6. . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 Writing a Data Record with SFC58 “WR_REC” 5-7. . . . . . . . . . . . . . . . .
5.4 Read Data Record with SFC 59 “RD_REC” 5-9. . . . . . . . . . . . . . . . . . . .
5.5 Sample Program 5-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
6 SIMATIC S5 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1 Hardware Prerequisites 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Delivery Form 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3 Parameterization 6-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.4 Addressing the SIWAREX U 6-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.5 Types of Addressing of the IM 308-C 6-8. . . . . . . . . . . . . . . . . . . . . . . . . .
6.6 Types of Addressing of the S5-95U 6-9. . . . . . . . . . . . . . . . . . . . . . . . . . .
6.7 Principle of Communication 6-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.8 Allocation of the Input/Output Area 6-11. . . . . . . . . . . . . . . . . . . . . . . . . . .
6.9 Description of Data Transmission 6-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.10 Sample Program 6-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.11 Diagnostic Capabilities with Link to SIMATIC S5 6-24. . . . . . . . . . . . . . . .
6.11.1 Diagnostic Capabilities with the IM 308-C 6-24. . . . . . . . . . . . . . . . . . . . . .
6.11.2 Diagnostic Capabilities with the S5-95U/DP Master 6-28. . . . . . . . . . . . .
7 Standard DP Master 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 Serial Coupling 8-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1 Transmission Protocol (SIWAREX Driver) 8-1. . . . . . . . . . . . . . . . . . . . .
9 Data Record Description 9-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1 Overview of Data Records 9-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2 Data Formats 9-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3 Description of the Data Records 9-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.1 DR0: Basic Parameters (Write) 9-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.2 DR1 - Parameter (Write) 9-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.3 DR0: Diagnosis, Part 1 (Read) 9-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.4 DR1 - Diagnosis, Part 2 (Read) 9-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.5 DR3: Adjustment Data, Channel 1 9-7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.6 DR4: Adjustment Data, Channel 2 9-9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.7 DR5: General Parameters (Regardless of Channel) 9-9. . . . . . . . . . . . .
9.3.8 DR6: Specified Values, Remote Display 9-10. . . . . . . . . . . . . . . . . . . . . . .
9.3.9 DR11: Commands, Channel 1 9-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.10 DR12: Commands, Channel 2 9-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.11 DR21: Limit Values, Channel 1 9-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.12 DR22: Limit Values, Channel 2 9-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.13 DR31: Measured Values/Status/Error, Channel 1 9-13. . . . . . . . . . . . . . .
9.3.14 DR32: Measured Values/Status/Error, Channel 2 9-13. . . . . . . . . . . . . . .
9.3.15 DR40: Version/Checksum/Switches 9-15. . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.16 DR57 to 79: Data Records for I/O Area 9-16. . . . . . . . . . . . . . . . . . . . . . . .
9.3.17 DR100: Fetch Telegram 9-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.18 DR101: Acknowledgment Telegram 9-17. . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents
iii
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
10 Optional Components 10-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.1 Connection of Digital Remote Displays 10-2. . . . . . . . . . . . . . . . . . . . . . . .
10.2 Ex-i Interface for SIWAREX U 10-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.2.1 Layout 10-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 SIWATOOL - Description and Use 11-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.1 Installing SIWATOOL on PC/PG 11-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.2 Commissioning SIWAREX U with SIWATOOL 11-3. . . . . . . . . . . . . . . . . .
11.3 SIWATOOL Menu Tree 11-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.4 Adjustment of the Scales 11-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.5 Important Notes on Settings in SIWATOOL 11-8. . . . . . . . . . . . . . . . . . . .
11.6 Weighing Status 11-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.7 Diagnostic Capabilities with SIWATOOL 11-10. . . . . . . . . . . . . . . . . . . . . . .
12 Error Diagnostics and Treatment 12-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.1 Error Treatment 12-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.2 General Behavior During Malfunctions 12-5. . . . . . . . . . . . . . . . . . . . . . . .
13 Technical Specifications 13-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.1 Interfaces 13-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.2 Physical Requirements and Data 13-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.3 Electrical, EMC and Climatic Requirements 13-6. . . . . . . . . . . . . . . . . . . .
13.4 Potential Isolation 13-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14 Hotline/Repairs/Replacement Parts/Internet 14-1. . . . . . . . . . . . . . . . . . . . . . . . .
Index Index-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents
iv SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Figures
1-1 SIWAREX U with the SIMATIC S7-300 1-2. . . . . . . . . . . . . . . . . . . . . . . .
1-2 SIWAREX U in the SIMATIC S7-300 1-4. . . . . . . . . . . . . . . . . . . . . . . . . .
1-3 The SIWAREX U as distributed periphery in the
SIMATIC S5/S7/M7 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4 Representation of the SIWAREX U in the ES engineering
system (left) and on the OS operator station (right) 1-6. . . . . . . . . . . . .
1-5 The SIWAREX U as a controller-independent field device 1-7. . . . . . . .
1-6 Diagram of the SIWAREX U setup 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-7 Setup of the weighing system with a SIWAREX U 1-8. . . . . . . . . . . . . .
1-8 SIWAREX U fill level scales 1-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-9 Scales for potentially explosive area 1-11. . . . . . . . . . . . . . . . . . . . . . . . . .
2-1 Shield connecting element 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2 Mounting the shield terminals 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3 Connection elements on the front of the SIWAREX U 2-8. . . . . . . . . . .
2-4 Connection of load cells using the 6-wire technique
(example: connection to channel 1) 2-11. . . . . . . . . . . . . . . . . . . . . . . . . . .
2-5 Connection of load cells using the 4-wire technique
(example: connection to channel 2) 2-12. . . . . . . . . . . . . . . . . . . . . . . . . . .
2-6 Connection of a PC to the RS 232 interface 2-13. . . . . . . . . . . . . . . . . . . .
2-7 Connection of digital remote displays 2-15. . . . . . . . . . . . . . . . . . . . . . . . . .
2-8 Location of the LEDs to be tested 2-17. . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-9 Methods of parameter assignment for various system
configurations 2-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1 Filtering principle of the SIWAREX U 3-3. . . . . . . . . . . . . . . . . . . . . . . . . .
3-2 Adjustment procedure 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3 Example of assigning parameters 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1 Possible links to a host system 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1 Parameterization configuration 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2 Module status in STEP 7 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-1 Selection of SIWAREX U module during configuration of the
ET 200M 6-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2 Parameter assignment with COM PROFIBUS 6-17. . . . . . . . . . . . . . . . . .
9-1 Comparison of data addressing with STEP 5 and STEP 7 9-3. . . . . . .
10-1 Connection of optional components 10-1. . . . . . . . . . . . . . . . . . . . . . . . . . .
10-2 Example: Connection of 4 digital remote displays to the
SIWAREX U 10-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-3 Connection of remote displays 10-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-4 Diagram of the Ex-i interface 10-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-1 S7 setup 11-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-2 Dialog on scales adjustment 11-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-3 Status window of the set scales 11-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-4 Online error report 11-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13-1 Dimensions 13-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents
v
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Tables
2-1 Technical data of the SIMATIC 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2 Requirements on the SIWAREX U side 2-4. . . . . . . . . . . . . . . . . . . . . . . .
2-3 Rules for wiring 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4 Indication elements on the front of the SIWAREX U 2-8. . . . . . . . . . . . .
2-5 Allocation of the load cell connection 2-10. . . . . . . . . . . . . . . . . . . . . . . . . .
2-6 Assignment of the RS 232C interface for SIWAREX U 2-13. . . . . . . . . . .
2-7 Assignment of the interface converter 2-14. . . . . . . . . . . . . . . . . . . . . . . . .
2-8 Assignment 2-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1 A/D conversion 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2 Commands and messages for adjustment 3-9. . . . . . . . . . . . . . . . . . . . .
3-3 Setting to zero 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4 Limit values - special cases 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-5 Limit values 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-6 Messages for the test routines 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-7 Storage of the limit values and zero setting value 3-16. . . . . . . . . . . . . . .
3-8 Allocation of the status LEDs 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-9 Messages for the special functions 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1 Overview of the data records 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1 Parameters for SFC 58 “WR_REC” 5-7. . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2 Parameters for SFC 59 “RD_REC” 5-9. . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3 Specific error information for SFC 58 “WR_REC” and
SFC 59 “RD_REC” 5-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-1 Maximum transmission speeds 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2 Type and GSD files 6-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-3 Possible addresses 6-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4 Possible addresses 6-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5 Input/output of the SIWAREX U 6-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6 Job control (output byte 3) 6-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-7 Status byte (input byte 1) 6-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-8 Sample program DEMO 6-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-9 Call interface 6-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-10 Structure of DW49 6-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-11 Structure of the scales DB 6-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-12 User DB interface 6-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-13 Call FB192 6-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-14 Contents and layout of the diagnostic data 6-25. . . . . . . . . . . . . . . . . . . . .
6-15 Contents and layout of the process interrupt data 6-26. . . . . . . . . . . . . . .
6-16 Contents and layout of the diagnostic alarm data
(contents of data record DR1) 6-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-17 Example 6-29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-18 Contents and structure of the diagnostic data 6-29. . . . . . . . . . . . . . . . . .
8-1 Telegram layout 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-2 Interface data 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-3 RS 232 interface and SIWAREX driver 8-3. . . . . . . . . . . . . . . . . . . . . . . .
9-1 Overview of the data records 9-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-2 Data record formats 9-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-3 DR0: Basic parameters (length: 4) 9-4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-4 DR1 - Parameter (length: 16) 9-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-5 Diagnostic data 9-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-6 Diagnostic data 9-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-7 DR3: Adjustment data, channel 1 (length: 10 bytes) 9-7. . . . . . . . . . . . .
Table of Contents
vi SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
9-8 Char. value, LC/filter setting/setting data 9-8. . . . . . . . . . . . . . . . . . . . . . .
9-9 DR4: Adjustment data, channel 2 (for two-channel modules only)
(length: 10 bytes) 9-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-10 DR5: General parameters (length: 6 bytes) 9-9. . . . . . . . . . . . . . . . . . . .
9-11 TTY/RS 232C interface parameters
(fixed: 8 data bits, 1 stop bit, 9600 baud) 9-9. . . . . . . . . . . . . . . . . . . . . .
9-12 Type of remote display 9-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-13 Allocation of LED 1 or LED 2 9-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-14 DR6: Specified values, remote display (length: 4 bytes) 9-10. . . . . . . . . .
9-15 DR11: Commands, channel 1 (length: 2 bytes) 9-11. . . . . . . . . . . . . . . . .
9-16 Possible entries, command word 9-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-17 DR12: Commands, channel 2 (for two-channel modules only)
(length: 2 bytes) 9-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-18 DR21: Limit values, channel 1 (length: 8 bytes) 9-12. . . . . . . . . . . . . . . .
9-19 DR22: Limit values, channel 2 (for two-channel modules only)
(length: 8 bytes) 9-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-20 DR31: Measured values/status/error, channel 1 (length: 10 bytes) 9-13
9-21 DR32: Measured values/status/error, channel 2 (length: 10 bytes) 9-13
9-22 Status byte 9-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-23 Asynchronous errors 9-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-24 Synchronous error 9-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-25 DR40: Version/checksum/switches (length: 8 bytes) 9-15. . . . . . . . . . . . .
9-26 DR57 to 79: Data records for I/O area (S5 data records) 9-16. . . . . . . . .
9-27 DR100: Fetch telegram (length: 1 byte) 9-17. . . . . . . . . . . . . . . . . . . . . . . .
9-28 DR101: Acknowledgment telegram (length: 3 bytes) 9-17. . . . . . . . . . . .
9-29 Error types in the acknowledgment telegram 9-17. . . . . . . . . . . . . . . . . . .
10-1 Special operating states 10-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-2 Pin assignment of the TTY interface 10-4. . . . . . . . . . . . . . . . . . . . . . . . . .
10-3 Remote display 10-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-4 Settings of the remote display 10-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-5 Number range which can be indicated on the remote display 10-6. . . . .
10-6 Assignment of the addresses on the remote display 10-7. . . . . . . . . . . . .
10-7 Description of the string layout 10-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-8 Character set used for display data 10-8. . . . . . . . . . . . . . . . . . . . . . . . . . .
11-1 Example 11-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12-1 Types of errors 12-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12-2 Synchronous errors 12-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12-3 Asynchronous errors 12-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12-4 Diverse errors 12-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents
1-1
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
System Overview
This section gives you an overview of the functions of the SIWAREX U
weighing module and a description of its integration into the system.
1
1-2 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
1.1 Introduction
Everywhere where loads and forces must be weighed precisely and reliably, the
SIWAREX U offers the best solution. A few examples: For fill levels of bins
and hoppers, for monitoring trolley loads, for load measurement of conveyor
belts or as overload protection for industrial elevators or milling lines.
The SIWAREX U is a weighing module which permits complete integration of
weighing functions in the SIMATIC. The basic system is the SIMATIC
S7-300.
The SIWAREX U is available in both one-channel and two-channel models.
SIWAREX U with one weighing channel: Order no. 7MH4 601-1AA01
SIWAREX U with two weighing channels: Order no. 7MH4 601-1BA01
By using standard components from the SIMATIC family, the SIWAREX U
can be expanded as desired and thus offers an optimal hardware and software
environment for implementation of system-specific solutions.
Using the ET 200M modular I/O device, the SIWAREX U can also be con-
nected decentrally to a SIMATIC S5/S7/M7/PCS 7, or another standard
DP master.
PS 307
2A
6ES7307-1BA00-0AA0
2
13
X
SIMATIC
S7-300
CPU 312 IFM
6ES7312-5AC00-0AB0
2
13
X
SIEMENS
SIMATIC
S7-300
SIWAREX U
WEIGHING MODULE SF
24V
ST1
ST2
7MH4601-1BA01
2
13
X
CP 342-5
6GK7342-5DA00-0XE0
SIMATIC
S7-300
1
X3
2
Figure 1-1 SIWAREX U with the SIMATIC S7-300
Just what is SIWA-
REX U?
S
y
stem Overview
1-3
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
The SIWAREX U handles execution of all weighing functions in process engi-
neering.
The SIWAREX U generates the weight value and checks this value to deter-
mine whether a limit value has been exceeded.
The SIWAREX U can be used in potentially explosive areas (i.e., zones 1 and
2). The optional Ex-i interface (SIWAREX IS) ensures intrinsically safe sup-
ply of the load cells.
Additional features:
S2 models (for one or two scales)
SIntegration in SIMATIC S7/M7-300 as a function module (FM)
SConnection to PROFIBUS-DP via ET 200M
S2 serial interfaces for remote display and PC connection
SEasy parameterization with Windows
SModule can be exchanged without readjusting the scales
STheoretical adjustment without adjustment weights
SSetting to zero, parameterizable limit values and adjustable digital filter
SHigh degree of measuring precision (0.05%)
SCE, UL, CSA, FM, and ISO 9001 certification
SChoice of parameterization methods:
– “SIWATOOL” parameterization software under WINDOWS on PC;
direct transfer to the RS 232 interface of the SIWAREX U
– Via data record transfer or via “ForceVar.”
SLoad cell interfaces:
– Short circuit and overload-proof load cell supply at max. of 240 mA
– Wire break detection (sensor, supply and measuring lines)
– Load cell adaptation via software
What can the
SIWAREX U do?
S
y
stem Overview
1-4 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Integration of the SIWAREX U into the SIMATIC provides a freely program-
mable weighing system with which even complex tasks (e.g., multi-scale sy-
stems) can be implemented easily.
The SIWAREX U is snapped directly onto the SIMATIC S7 bus as a function
module (FM). This direct integration of the SIWAREX U into the
SIMATIC S7-300/M7-300 permits optimal utilization of all functions of
the automation system.
Hardware and software flexibility permits the implementation of a wide variety
of applications (e.g., in the chemicals industry and foodstuffs industry). The
complete family of SIMATIC S7-300 modules is available as the hardware
platform. SIMATIC HMI operator panels are available for easy operator
control and monitoring.
MPI-BUS
SIMATIC S7-300/400
K 1
K 9K10
K 2K 3
K11 K 8
K16
K 4
K12 K 5
K13 K 6
K14 K 7
K15
F 1F 2F 3F 8F 4F 5F 6F 7
7890
456+/-
321.
ABC
FE
D
SIMATIC HMI OP17
B> 243,23 kg
LC LC LC LC
JB
Junction box
Scale 1 Scale 2
SIWATOOL
TTY
RS232 C
Option: Channel 2
CPU 312 IFMPS SIWAREX U
CPU 312 IFM
6ES7312-5AC00-0AB0 2
13
X
SIEMENS
SIMATIC
S7-300
SIWAREX U
WEIGHING MODULESF
24V
ST1
ST2
7MH4601-1BA01
2
13
X
PS 307
2A
6ES7307-1BA00-0AA0 2
13
X
SIMATIC
S7-300
JB
Junction box
SIMATIC OP17
Weight
Scale 1
Weight
Scale 2
Spec.
value 1
Spec.
value 2
I/O of CPU 312 IFM:
- 10 digital inputs
- 6 digital outputs
Figure 1-2 SIWAREX U in the SIMATIC S7-300
The SIWAREX U can also be operated centrally in the SIMATIC M7-300.
System integration
of the SIWAREX U
into the SIMATIC
Central integration
into the S7-300/
M7-300
S
y
stem Overview
1-5
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Since the SIWAREX U can be connected to the PROFIBUS-DP via the
ET 200M modular I/O system (IM 153-1 or IM 153-2 interface), the
SIWAREX U can be linked as distributed periphery to the SIMATIC S5-95U,
S5-115U/H, S5-135U or S5-155U/H or to the SIMATIC S7-300/M7-300 or
S7-400/M7-400.
Transmission distances of up to 23 km are permitted.
Several SIWAREX U modules can be connected together with additional
I/O modules on an IM 153-1 or IM 153-2.
SIMATIC S7-300
SIMATIC M7-300
PROFIBUS-DP
SIMATIC S5-95U
SIMATIC S5-115U/135U/155U
SIMATIC S7-400
SIMATIC M7-400
PS: Power supply
SIW. U SIWAREX U
IM: IM 153-1
DO: Dig. output module
DI: Dig. input module
PS IM SIW. U DO DI
6ES7153-1AA02-0XB0
2
13
X
SIEMENS
SIMATIC
ET 200M
SIWAREX U
WEIGHING MODULE SF
24V
ST1
ST2
7MH4601-1BA01
2
13
X
PS 307
2A
6ES7307-1BA00-0AA0
2
13
X
SIMATIC
S7-300
SM 322
8 DO, DC24V
6ES7322-1BF01-0AA0
2
13
X
SM 321
16 DI, DC24V
6ES7321-1BH00-0AA0
2
13
X
Figure 1-3 The SIWAREX U as distributed periphery in the SIMATIC S5/S7/M7
The central unit or expansion unit of the SIMATIC S5-115U/135U/155U re-
quires an IM 308-C interface. Up to 122 bus nodes (32 without repeater) can
be connected to this interface. In addition, a S5-95U with DP master interface
can also be used as the master.
However, when the SIWAREX U is connected decentrally to a
SIMATIC S7-300 or SIMATIC S7-400, an S7 CPU with PROFIBUS-DP inter-
face or a CP 443-5 (release status 2 or later) or IM 467 for the bus connection
is required. The CP 342-5 cannot be used for the bus connection.
Decentral connection to a SIMATIC M7 requires an IFM interface.
Distributed
integration
into the S7/S5/M7
S
y
stem Overview
1-6 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
While the SIWAREX U is usually integrated in SIMATIC S5/S7 programma-
ble controllers with the typical PLC programming languages STL (statement
list), LAD (ladder diagram) or FBD (function block diagram), integration in
the SIMATIC PCS 7 process control system is performed via graphic configu-
ration in the CFC (continuous function chart). In other words, integration is
structured instead of programmed.
The SIWAREX U modules are represented in the ES (i.e., engineering system)
by “technology blocks” in the CFC. In contrast, with the OS (operator station),
WinCC faceplates are used by the visualization system to re-present the
SIWAREX U modules.
The faceplates can be used to monitor the weight values and control the
SIWAREX U modules.
A separate SIWAREX U configuration package is available for the
SIMATIC PCS 7 process control system which contains a block for the
CFC chart, a faceplate for WinCC and the documentation.
Figure 1-4 Representation of the SIWAREX U in the ES engineering system (left)
and on the OS operator station (right)
Distributed inte-
gration into the SI-
MATIC PCS 7
S
y
stem Overview
1-7
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Using the serial interfaces of the SIWAREX U for a remote display or the con-
nection of PC or host, the SIWAREX U can also be used as a field device
which is not dependent on a controller. When the SIWAREX U is used wi-
thout the SIMATIC S7/M7, an IM 153-1 interface must be used to power the
SIWAREX U with 5 V over the backplane bus. The interface can be used later
as a PROFIBUS interface.
JB
Junction box
LC LC LC LC
JB
Junction box
Weight
Scale 1
Weight
Scale 2
Spec.
value 1
Spec.
value 2
Scale 1 Scale 2
TTY
RS232 C
Option: Channel 2
6ES7153-1AA02-0XB0
2
13
X
SIEMENS
SIMATIC
ET 200M
SIWAREX U
WEIGHING MODULE SF
24V
ST1
ST2
7MH4601-1BA01
2
13
X
PS 307
2A
6ES7307-1BA00-0AA0
2
13
X
SIMATIC
S7-300
SIWATOOL
Figure 1-5 The SIWAREX U as a controller-independent field device
In addition to the bus interface for the SIMATIC, the SIWAREX U is equipped
with two other serial interfaces (i.e., TTY and RS 232C).
PC or host
CPU
SIMATIC
S7-300
M7-300
PROFIBUS-
DP
interface
(IM 153-1
or IM 153-2)
SIMATIC S7
bus
RS 232C TTY Meas. val.
acquisition
Load cell
supply
Remote display
SIWAREX U
EX-i
interface
(option)
Junction
box
LC LCLCLC
EX-i
interface
(option)
LC LCLCLC
Junction
box
Dotted lines::
Only for two-channel
SIWAREX U
Meas. val.
acquisition
Load cell
supply
Figure 1-6 Diagram of the SIWAREX U setup
Integration of the
SIWAREX U inde-
pendent of the
controller
Periphery
S
y
stem Overview
1-8 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
1.2 Setup and Components of a Weighing Machine
A complete industrial weighing machine (scales) consists of the following pri-
mary components.
SIMATIC bus
connection
PC connection
Remote display
connection
JB
ÍÍÍÍÍ
ÍÍÍÍÍ
Load
Connection cable
ÉÉÉÉÉÉÉÉÉÉ
Load cell Load cell
Foundation
Load bearing element
SIWAREX U
module
Figure 1-7 Setup of the weighing system with a SIWAREX U
Load bearing implements are used to hold the load to be weighed. Examples
include platforms, hoppers, trolleys, containers and so on.
Load cells are measuring sensors which convert a physical value (i.e., weight)
into a proportionate electrical signal.
Mounting elements ensure that the load cells function correctly. Mounting and
guide elements prevent faulty loading which can cause measuring errors and
damage to the load cells. Faulty loading is caused by forces (e.g., lateral for-
ces) for which the direction of action of the load cell springs is not designed.
The junction box (JB) is used to add together the load cell signals from several
load cells switched in parallel.
The SIWAREX U module is used as an electronic evaluation device which
acquires and further evaluates the signal coming from the load cell.
Load bearing im-
plement
Load cell
Mounting
elements
Junction box
SIWAREX U
S
y
stem Overview
1-9
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
1.3 Weighing Functions
SIWAREX U offers the following functions:
SAdjustment of the scales (theoretical adjustment also)
SMeasured value filtering
SWeight determination
SSetting to zero
SLimit value monitoring (min./max.)
Filling
LC LC
JB
Junction box
6ES7153-1AA02-0XB0
2
13
X
SIEMENS
SIMATIC
ET 200M
SIWAREX U
WEIGHING MODULE SF
24V
ST1
ST2
7MH4601-1BA01
2
13
X
PS 307
2A
6ES7307-1BA00-0AA0
2
13
X
SIMATIC
S7-300
SM 322
8 DO, DC24V
6ES7322-1BF01-0AA0
2
13
X
SM 321
16 DI, DC24V
6ES7321-1BH00-0AA0
2
13
X
Mixer
PROFIBUS
Figure 1-8 SIWAREX U fill level scales
Fill level scales are used to acquire the fill levels of hoppers, tanks or other
containers. The SIWAREX U offers weighing functions such as gross weight
calculation, setting to zero and limit value monitoring. These basic weighing
functions can also be used to implement other types of scales such as:
– Monitoring trolley loads
– Load measurement of conveyor belts
– Overload protection of industrial elevators or milling lines and so on
Many other types of scales can also be implemented when standard compo-
nents from the SIMATIC family are used.
Weighing electro-
nics for fill level
measurement and
load and force
measurement
S
y
stem Overview
1-10 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Connection of load cells located in potentially explosive areas requires an
Ex-i-Interface (type SIWAREX IS) which is placed between the
SIWAREX weighing module and the load cell (special model for potentially
explosive areas) or the junction box (JB).
The intermediate box contains an Ex-i interface and must be mounted outside
the potentially explosive area.
Appropriate SIMATIC modules are available for digital or analog inputs/out-
puts in the potentially explosive area.
Ex modules are used in the automation of chemical plants and are suitable for
applications in measuring, and open-loop and closed-loop control technology.
The primary task of the Ex modules is to separate the intrinsically safe electri-
cal circuits of the potentially explosive area and the non-intrinsically safe, in-
ternal electrical circuits of the programmable controller.
Remote displays with an analog interface can be used, for example, as remote
displays for the Ex area. These remote displays are connected to the intrinsi-
cally safe analog output of the SIMATIC. Another choice is to use pressure
encapsulated remote displays.
Special intrinsically safe operator panels are available from various manufactu-
rers for use in the potentially explosive areas of zones 1 and 2. These operator
panels can be connected to the SIMATIC S7 via the MPI interface of the
S7 CPU or via an additive communications module (CP), for example.
Pressure encapsulated operator panels (SIMATIC HMI) can also be used
instead of intrinsically safe devices.
Scales for poten-
tially explosive
areas, zones 1
and 2
Process I/O in the
Ex area
Remote displays in
the Ex area
Controlling and
monitoring in the
Ex area
S
y
stem Overview
1-11
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
IB= Intermediate box (Ex-i interface), JB= Junction box, LC= Load cell
ExI ExI
Figure 1-9 Scales for potentially explosive area
S
y
stem Overview
1-12 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
S
y
stem Overview
2-1
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Hardware Description and Commissioning
This section contains all information required for commissioning. Subjects
include mounting, connection, assignment of parameters, and a description of
the interfaces and indicator elements.
Adherence to these safety notes is mandatory. Non-compliance will invali-
date your warranty.
!Warning
Persons who are not qualified should not be allowed to handle this equip-
ment/system. Non-compliance with warnings appearing on the equipment
itself or on the system cabinet can result in severe personal injury or substan-
tial property damage. Only qualified personnel should be allowed to work
on this equipment/system.
Note
This product has been developed, manufactured, tested and documented in
accordance with relevant safety standards. Under normal conditions, this
product will not be a source of danger to property or life.
!Danger
Commissioning is prohibited until it has been determined that the machine in
which these components are to be installed meets the requirements of the
89/392/EC guidelines.
General safety no-
tes
2
2-2 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
!Warning
The following rules must be complied with to ensure that the requirements
contained in EU guidelines 89/336/EC are complied with.
SThe setup guidelines and safety notes in the applicable manuals and sup-
plementary documentation must be adhered to for both the automation
system and the SIWAREX U.
SAll signal lines to the SIWAREX U must be shielded and applied to a
grounded shield retainer rail (see section 2).
Hardware Descri
p
tion and Commissionin
g
2-3
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
2.1 Installing the SIWAREX U
Before beginning actual, physical installation, relevant safety precautions
must be taken and the following points adhered to or clarified.
SWas the module still in its original packaging ?
SCheck the shipment for transportation damages.
SCheck the shipment for completeness.
In case of damage or other discrepancies, contact your SIEMENS representa-
tive.
The S7 interface of the SIWAREX U corresponds to the serial I/O bus
(P bus) of the SIMATIC S7-300.
All slots of the SIMATIC S7/M7 which can be used by function modules
(FM) can also be used for the SIWAREX U.
For additional information, see the SIMATIC S7/M7-300 manual.
The maximum number of SIWAREX U modules which can be installed in
the SIMATIC depends on the following factors:
SMaximum number of modules in the central/expansion rack (CR/ER) or
modular ET 200M I/O device.
SMemory requirements on the S5-/S7-/C7-/M7-CPU
SCurrent consumption (5 V) from the S7 backplane bus
Preparations
Slot
Hardware Descri
p
tion and Commissionin
g
2-4 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 2-1 Technical data of the SIMATIC
Number of plug-in modules in the CR/ER
power feed-in (5 V) on the S7 backplane bus
Type of setup Central setup Distributed setup
1-line 2-line Max. of
4-line
CPU Working storage of the
CPU in Kbytes
CR IM 365 1 • IM 360
3 • IM 361
ET 200M
Interface:
IM 153-1 or
IM 153-2
CPU 312 IFM 68 MOD Multiple-line setup not possi-
ble
7 MOD per IM
1000 mA
CPU 313
12
800 mA
bl
e
1000
m
A
CPU 313
12
800
m
A
CPU 314 24 8 MOD 8 + 8 MOD 1 • 8 MOD
Exceptions:
M f 8 MOD
CPU 314 IFM 32 1200 mA Total of
1100 mA
1 • 850 mA Max. of 8 MOD per
IM
For
CPU 315 48 Plus
3 • 8 MOD
For
- CPU 318-2 CP
- CPU 417-4 DP
CP 443 5 E t
CPU 315-2 DP 64
3 • 8 MOD
3 • 800 mA
- CP 443-5 Ext.
- IM 467
Max. of 1 MOD
p
er
CPU 316 128 3 • 800 mA
Max
.
of 1 MOD per
IM
For
SIMATIC S5 95U/
CPU 318-2 DP 512,
Of this, max. of
256 for code
256 for data
Exception:
For CPU 314
IFM, total of
up to 31 mo-
dules
SIMATIC S5-95U/
DP master
The number of slave
stations (ET 200M) per
CPU depends on the
CPU d
CPU 31X-2 DP
CPU 41X-X DP
C7-6XX DP
S5-1X5U with
IM 308C
Depends on the CPU
used
- - - CPU used.
Example:
CPU 315-2 DP with
max. of 32 slave sta-
tions (ET 200M) per
CPU
MOD = SIWAREX U modules, CR = central rack, ER = expansion rack
Table 2-2 Requirements on the SIWAREX U side
For use of Power requirements (5 V) from
S7 backplane bus
Requirements on CPU working sto-
rage
m • SIWAREX U m • 100 mA Approx. m • 100 bytes
m = Number of SIWAREX U modules
Hardware Descri
p
tion and Commissionin
g
2-5
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
2.2 Mounting the Module on the Rail
Note
It is imperative to adhere to EMC guidelines when installing the cables (also
those outside the cabinets).
Do not place cables next to energy-technology cables, and shield the cables
as described.
In most cases, two-sided shield application is recommended. However, if
interference is primarily low-frequency, one-sided shield application may be
more effective.
Adhere to the grounding concept of the SIMATIC S7-300 to avoid problems
with the potential.
The setup guidelines of the SIMATIC S7 (see manual of the S7-300 pro-
grammable controller under setup and CPU data) must be adhered to for all
mounting steps, and the following instructions must be performed in the or-
der shown below.
1. Switch off all voltages on the SIMATIC S7, ensure that it cannot be swit-
ched back on again, and mark accordingly.
2. Make or check protective conductor connection. (See setup guidelines)
3. Mount shield connecting element.
– The shield connecting element must be mounted on the rail directly
under the slot in which the SIWAREX U is installed.
– Each cable to be connected to the SIWAREX U requires a shield ter-
minal on the shield rail of the shield connecting element (see section
2.3 on connection and wiring).
4. Insert bus connector. (See setup guidelines)
– A bus connector is supplied with each SIWAREX U. The bus connec-
tor must be inserted first on the module installed in the slot to the left
of the SIWAREX U.
5. Hang SIWAREX U. (See setup guidelines)
6. Screw down SIWAREX U. (See setup guidelines)
7. Label SIWAREX U. (See setup guidelines)
Mounting steps
Hardware Descri
p
tion and Commissionin
g
2-6 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Shield connecting
element
Figure 2-1 Shield connecting element
Hardware Descri
p
tion and Commissionin
g
2-7
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
2.3 Connection and Wiring
Since the rules for wiring listed in the table below apply to SIMATIC S7-300
modules, they must also be used for the wiring of front connector on the
SIWAREX U.
Table 2-3 Rules for wiring
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Rule for
ÁÁÁÁÁ
ÁÁÁÁÁ
Flexible Line
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
Flexible Line with Core End Sleeves
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Max. line cross section
ÁÁÁÁÁ
ÁÁÁÁÁ
0.25 to 1.5 mm2
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
0.25 to 1.5 mm2
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Number per connection
ÁÁÁÁÁ
ÁÁÁÁÁ
1
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
Max. of 2 (in one end sleeve)
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Stripping length
ÁÁÁÁÁ
ÁÁÁÁÁ
6 mm
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
6 mm
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Core end sleeves
ÁÁÁÁÁ
ÁÁÁÁ
Á
ÁÁÁÁÁ
-
ÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁ
Without insulation collar (short)
DIN 46228
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Turning moment
ÁÁÁÁÁ
ÁÁÁÁÁ
60-80 Ncm
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
60-80 Ncm
Non-flexible lines may not be used.
Select the shield terminal size appropriate to the cable diameter.
Securing a cable with the shield terminal requires that approximately 1.5 cm
of the cable insulation be cut away at the appropriate location so that the
shield is bared. The shield must be cut away starting at the shield terminal
(i.e., the cables are not shielded between the shield terminal and the 20-way,
multi-point connector strip).
1
2Shield terminal
Shield rail
(fixed)
Figure 2-2 Mounting the shield terminals
!Caution
Make sure that you do not damage the shield braiding when stripping the
cable.
When applying shields to all cables connected to the SIWAREX U, make
sure that there is enough cable between the shield connecting element and
the SIWAREX U so that the SIWAREX U can be removed with all its cables
still connected.
Rules for wiring
Shield terminals
Hardware Descri
p
tion and Commissionin
g
2-8 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
The following figure shows all available indication and connection elements
on the front of the SIWAREX U.
7 TxD2-
8 SENSE2+
9 SENSE2-
11 SIG2-
13 EXC2-
15 SENSE1+
16 SENSE1-
17 SIG1+
18 SIG1-
19 EXC1+
20 EXC1-
1 L+
2 M
12 EXC2+
24V
ST1
ST2
SF DC24V
6 TxD2+
5 TxD1
4 GND1
3 RxD1
X1
10 SIG2+
Power supply
Load cell connection 1
RS232TTY
RS 232 interface
Load cell connection 2
(for two-channel
SIWAREX U only)
TTY interface
Figure 2-3 Connection elements on the front of the SIWAREX U
Table 2-4 Indication elements on the front of the SIWAREX U
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Label
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
LED Color
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Position
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Explanation
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
SF
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Red
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
LED 1
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
System fault
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
24 V
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Green
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
LED 2
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Power supply
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ST1
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Yellow
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
LED 3
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Status 1
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ST2
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Yellow
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
LED 4
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Status 2
You can label the individual connections of the front plug connector with a
label strip which is included in delivery. This provides customized identifi-
cation.
Indication and
connection ele-
ments
Indication
elements
Labelling
Hardware Descri
p
tion and Commissionin
g
2-9
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
The SIWAREX U module requires a 24 V power supply.
Its maximum current consumption is 220 mA.
The cables are connected to front connector X1 on screw contacts 1 and 2.
(see figure 2-3).
Note
In addition to the 24 V supply via the front connector, the SIWAREX U is
powered with 5 V via the backplane bus of the SIMATIC S7. The 5 V cur-
rent is fed in by the S7 CPU or the IM module.
The front connector is equipped with 20 screw contacts for wiring the follo-
wing connections.
SPower supply
SLoad cells
SSerial interfaces (TTY and RS 232C)
The required cable cross sections can be found in this section.
Disconnect the front connector from the module to make connection work
easier.
Power supply
Front connector
Hardware Descri
p
tion and Commissionin
g
2-10 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
2.3.1 Load Cell Connection
In principle, all measured value sensors (i.e., load sensors) can be connected
to the SIWAREX U provided they meet the following requirements:
SCharacteristic value up to 4 mV/V
SSupply voltage 10.3 V
SMeasuring procedure based on the Wheatstone bridge
Table 2-5 Allocation of the load cell connection
ÁÁÁÁ
ÁÁÁÁ
Screw
Terminal
ÁÁÁÁÁ
ÁÁÁÁÁ
Load Cell
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Signal
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Meaning
ÁÁÁÁ
ÁÁÁÁ
8
ÁÁÁÁÁ
ÁÁÁÁÁ
UF +
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
SENSE2 +
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Sensor line + (channel 2)
ÁÁÁÁ
ÁÁÁÁ
9
ÁÁÁÁÁ
ÁÁÁÁÁ
UF -
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
SENSE2 -
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Sensor line - (channel 2)
ÁÁÁÁ
Á
ÁÁ
Á
10
ÁÁÁÁÁ
Á
ÁÁÁ
Á
UM +
ÁÁÁÁÁÁ
Á
ÁÁÁÁ
Á
SIG2 +
ÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Á
Meas. voltage + (channel 2)
ÁÁÁÁ
Á
ÁÁ
Á
11
ÁÁÁÁÁ
Á
ÁÁÁ
Á
UM -
ÁÁÁÁÁÁ
Á
ÁÁÁÁ
Á
SIG2 -
ÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Á
Meas. voltage - (channel 2)
ÁÁÁÁ
ÁÁÁÁ
12
ÁÁÁÁÁ
ÁÁÁÁÁ
US +
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
EXC2 +
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Supply voltage + (channel 2)
ÁÁÁÁ
ÁÁÁÁ
13
ÁÁÁÁÁ
ÁÁÁÁÁ
US -
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
EXC2 -
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Supply voltage - (channel 2)
ÁÁÁÁ
ÁÁÁÁ
14
ÁÁÁÁÁ
ÁÁÁÁÁ
-
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
-
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Reserved
(Do not use.)
ÁÁÁÁ
ÁÁÁÁ
15
ÁÁÁÁÁ
ÁÁÁÁÁ
UF +
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
SENSE1 +
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Sensor line + (channel 1)
ÁÁÁÁ
ÁÁÁÁ
16
ÁÁÁÁÁ
ÁÁÁÁÁ
UF -
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
SENSE1 -
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Sensor line - (channel 1)
ÁÁÁÁ
ÁÁÁÁ
17
ÁÁÁÁÁ
ÁÁÁÁÁ
UM +
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
SIG1 +
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Meas. voltage + (channel 1)
ÁÁÁÁ
ÁÁÁÁ
18
ÁÁÁÁÁ
ÁÁÁÁÁ
UM -
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
SIG1 -
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Meas. voltage - (channel 1)
ÁÁÁÁ
ÁÁÁÁ
19
ÁÁÁÁÁ
ÁÁÁÁÁ
US +
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
EXC1 +
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Supply voltage + (channel 1)
ÁÁÁÁ
ÁÁÁÁ
20
ÁÁÁÁÁ
ÁÁÁÁÁ
US -
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
EXC1 -
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Supply voltage - (channel 1)
Load cells which
can be connected
Hardware Descri
p
tion and Commissionin
g
2-11
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Load cells must be connected in accordance with the following rules:
1. A junction box must be used under the following conditions:
– More than one load cell is connected. (Remember that the load cells
must then be switched in parallel.)
– The distance between load cell and SIWAREX U is greater than the
longest available length of load cell connection cable.
2. Under normal conditions, the shield is applied to the cable leadin supports
of the junction box. When there is a danger of equipotential bonding cur-
rents from the cable shield, an equipotential bonding conductor must be
installed parallel to the load cell cable, or the shield terminal in the junc-
tion box must be used to apply the shield. An equipotential bonding con-
ductor should be used for EMC (Electro-Magnetic Compatibility) purpo-
ses.
3. Twisted core pairs should be used for the lines specified below.
– (+) and (-) sensor line
– (+) and (-) measuring voltage line
– (+) and (-) supply voltage line
4. The shield on the SIWAREX U must be applied to the shield holder ele-
ment.
The “SIWAREX IS” Ex-i interface is required when load cells are to be ope-
rated in potentially explosive areas.
SIWAREX U
X1
20
16
18
19
15
17
PAL
SHIELD
EXC-
SENSE-
SIG-
EXC+
SENSE+
SIG+
Figure 2-4 Connection of load cells using the 6-wire technique
(example: connection to channel 1)
Load cell
connection for
normal areas
(standard)
Load cell connec-
tion for potentially
explosive areas
Load cell connec-
tion, 6-wire techni-
que with junction
box
Hardware Descri
p
tion and Commissionin
g
2-12 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
SIWAREX U
X1
20
16
18
19
15
17
PAL
SHIELD
EXC-
SENSE-
SIG-
EXC+
SENSE+
SIG+
Figure 2-5 Connection of load cells using the 4-wire technique
(example: connection to channel 2)
When the 4-wire technique is used to connect the load cells, the signals
(SUPPLY+) and (SENSE+), as well as (SUPPLY-) and (SENSE-) must be
jumpered in the junction box.
The 6-wire technique must always be used for the connection of the junction
box to the SIWAREX U to compensate for temperature and line influences.
When the 4-wire technique is used to connect the load cells directly to the
SIWAREX U the following must be jumpered in the front connector of the
SIWAREX U.
SScrew contacts 15 with 19, and 16 with 20 or
SScrew contacts 8 with 12, and 9 with 13
The cable of each load cell is led through the cable leadin supports (PG
screw-type connection). The cable shield must be applied to the PG screw-
type connection.
The individual cores of the load cell cable are circuited in parallel to the re-
spective soldering tags (i.e., SUPPLY, SENSE and SIGNAL).
– Solder all feeder voltage lines (+) of the load cells and the weighing
electronics to soldering tag “SUPPLY +”.
– Solder all feeder voltage lines (-) of the load cells and the weighing
electronics to soldering tag “SUPPLY -”.
– Use the same procedure on all remaining lines.
Soldering tags A and B are reserve connection elements (e.g., for installation
of precision resistors for the cut-off load calibration). A cut-off load calibra-
tion is usually only performed for scales on which cut-off loads occur
(e.g., vehicle scales).
Load cell connec-
tion, 4-wire techni-
que with junction
box
Load cell connec-
tion, 4-wire techni-
que without junc-
tion box
Parallel circuiting
of the load cells in
the junction box
Hardware Descri
p
tion and Commissionin
g
2-13
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
2.3.2 RS 232C Interface
The RS 232C interface uses the RxD and TxD signals.
The interface is non-floating.
The screw contacts of the 20-way multi-point connector strip are used for the
connection. A SIWAREX protocol driver is available on the RS 232C inter-
face.
The following components can be connected to the RS 232C interface.
SPC (for commissioning/parameterization)
SHOST (link to a control system)
3
4
52
5
3
Host
e.g. PC
15 m (e.g., LIYCY 2 x 2 x 0.2 mm
<2)
Sub D,
9–way socket
SIWAREX U
Figure 2-6 Connection of a PC to the RS 232 interface
Table 2-6 Assignment of the RS 232C interface for SIWAREX U
ÁÁÁÁÁ
Á
ÁÁÁ
Á
Á
ÁÁÁ
Á
Á
ÁÁÁ
Á
SIWAREX U
Screw
Terminals
ÁÁÁÁÁÁ
Á
ÁÁÁÁ
Á
Á
ÁÁÁÁ
Á
Á
ÁÁÁÁ
Á
Pin Assign-
ment of 9-Way
PC
Interface
ÁÁÁÁÁ
Á
ÁÁÁ
Á
Á
ÁÁÁ
Á
Á
ÁÁÁ
Á
Pin Assign-
ment of
25-Way PC
Interface
ÁÁÁÁ
Á
ÁÁ
Á
Á
ÁÁ
Á
Á
ÁÁ
Á
Signal
Name
ÁÁÁÁÁÁ
Á
ÁÁÁÁ
Á
Á
ÁÁÁÁ
Á
Á
ÁÁÁÁ
Á
Explanation
ÁÁÁÁÁ
ÁÁÁÁÁ
3
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
3
ÁÁÁÁÁ
ÁÁÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
RxD1
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Receiving data
ÁÁÁÁÁ
ÁÁÁÁÁ
4
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
5
ÁÁÁÁÁ
ÁÁÁÁÁ
7
ÁÁÁÁ
ÁÁÁÁ
GND1
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Operating
ground
ÁÁÁÁÁ
ÁÁÁÁÁ
5
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
2
ÁÁÁÁÁ
ÁÁÁÁÁ
3
ÁÁÁÁ
ÁÁÁÁ
TxD1
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Sending data
Description
Components
which can be
connected
Connection
Assignment
Hardware Descri
p
tion and Commissionin
g
2-14 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
When the RS 232C interface is to be available for connection during parame-
terization and diagnostic, this can be done with an interface converter (e.g.,
from Weidmüller). The interface converter converts the screw terminals to
sub D plug connectors (9-way socket).
When an interface converter from screw terminal to 9-way sub D socket is
used, the socket should be allocated as shown below so that the same PC
plug-in cables (order no. 7MH4 702-8C...) can be used as for the
SIWAREX M weighing and proportioning module.
Table 2-7 Assignment of the interface converter
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Screw Terminals
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Assignment to Sub D
Socket
ÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁ
Explanation
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
3
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
2
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Receiving data, SIWAREX U
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
4
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
5
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Operating ground, SIWAREX U
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
5
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
3
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Sending data, SIWAREX U
Interface converter
Hardware Descri
p
tion and Commissionin
g
2-15
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
2.3.3 TTY Interface
The TTY interface uses the TxD signal and must be operated in passive mode
(floating).
The screw contacts of the 20-way multi-point connector strip are used for the
connection.
Up to four digital remote displays can be connected to the TTY interface.
The following values can be indicated on the remote display:
SWeight, measuring channel 1
SWeight, measuring channel 2 (for two-channel SIWAREX U only)
SSpecification value 1
(can be assigned as desired via SIMATIC, PC or host)
SSpecification value 2
(can be assigned as desired via SIMATIC, PC or host)
TxD2+
(Pin 6)
TxD2-
(Pin 7)
RXD-
RXD+
RXD-
RXD+
20mA/R
M/R
Display 1
(passive)
Display 2
(active)
SIWAREX U
(passive)
< 1000 m
(e.g.: LIYCY 2x2x0.5mm2)
Figure 2-7 Connection of digital remote displays
Table 2-8 Assignment
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
Connection
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
Meaning of the TTY Interface
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
PIN
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Signal
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
6
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
TxD2 +
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
Sending data + of the SIWAREX U
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
7
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
TxD2 -
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
Sending data - of the SIWAREX U
Description
Connection
Assignment
Hardware Descri
p
tion and Commissionin
g
2-16 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
2.4 Preparing the SIWAREX U for Operation
After the module has been mounted and all connections have been set up, a
partial function test of the SIWAREX U and all connected components must
be performed at this stage of the commissioning procedure.
Perform the individual steps of the partial test in the order specified below.
Check to determine whether you have performed all steps up to now cor-
rectly.
SIs the exterior of the module undamaged ?
SIs the module installed in the correct slot ?
SHave all mounting screws been tightened correctly ?
SHave all connection cables been connected correctly and secured ?
SHas the front plug connector been plugged in correctly ?
SHave all shields been applied to the shield holder element ?
SHave you removed all tools, materials and parts not belonging to the S7
or the SIWAREX U from the mounting rail and the modules ?
Turn on the power supply.
Note
The SIWAREX U must be powered over the S7 backplane bus. When the
SIWAREX U is used without the SIMATIC S7/M7, an IM 153-1 interface
must be used so that the SIWAREX U is supplied with 5 V over the back-
plane bus.
Introduction
Visual inspection
Applying 24 V to
the SIWAREX U
Hardware Descri
p
tion and Commissionin
g
2-17
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
After the power is turned on, the SIWAREX U switches to operation mode.
If operating correctly, the LEDs below will indicate the following states:
LED (24 V) ON status
LED (SF) OFF status
If the LEDs do not indicate the correct states, proceed as described in
section 12.
1 L+
24V
SF
Figure 2-8 Location of the LEDs to be tested
LED test on
the SIWAREX U
Hardware Descri
p
tion and Commissionin
g
2-18 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
2.5 Assigning Parameters
Depending on your system configuration, there are various ways to assign
parameters and commission the SIWAREX U.
Use the overview below to select the best method of parameter assignment
and commissioning for your special system configuration.
S7–300 SIWAREX U S5
S7-300 backplane bus
RS 485 RS 232 TTY
PG interface
MPI bus
Parameterization
SFC
STEP 7
PG
I/O
STEP 5
Host PG
PC/PG
for para.
assign.
SIWATOOL
Parameteriz.
Commissioning
CPU
IM 308-C
or IM 153-2
IM 153-1
telegram
PROFIBUS-DP
Parameterization
Commissioning
Parameterization
Commissioning
Parameterization
Commissioning
I/O
Figure 2-9 Methods of parameter assignment for various system configurations
Introduction
Overview of possi-
ble parameter as-
signments and
commissioning
Hardware Descri
p
tion and Commissionin
g
2-19
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Via SFC call (DR communication)
The data records are transferred by SFC calls.
Via I/O area
The data records are transferred over the I/O area.
Via M7 record call (DR communication)
The data records are transferred via M7LoadRecord or M7StoreRecord calls.
Via I/O area
The data records are tranferred via M7Load_ or M7Store_.
Via I/O area
The data records are transferred over the I/O area.
Edit I/O bar of the SIWAREX block in the CFC chart, and then transfer the
modified data to the SIWAREX U.
Via PC/PG with SIWATOOL
Install SIWATOOL on the PC/PG.
SIWATOOL uses pull-down menus and runs under WINDOWS.
Note
See section 11 for a description of SIWATOOL and how to use it.
Via data telegram
Data telegrams are used to perform parameter assignment and commission-
ing.
Link to the
SIMATIC S7
Link to the
SIMATIC M7
Link to the
SIMATIC S5
Link to the
SIMATIC PCS 7
Link to a PC
with SIWATOOL
Link to the host
Hardware Descri
p
tion and Commissionin
g
2-20 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Hardware Descri
p
tion and Commissionin
g
3-1
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Function Description
The SIWAREX U can be integrated in SIMATIC S7-300 and M7-300
automation systems and can also be used as modular periphery in the
ET 200M. The SIWAREX U can also communicate with other host systems
via the serial interface.
The SIWAREX U handles execution of the weighing functions of a fill level
scale within a complete weighing system.
The SIWAREX U can also be used in potentially explosive areas.
SIWAREX U offers functions, which are listed below:
SMeasured value filtering
SWeight calculation
SSetting to zero
SAdjustment of the scales
SLimit value monitoring (min./max.)
This section contains a function description of the SIWAREX U weighing
module.
Introduction
Overview
3
3-2 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
3.1 A/D Conversion (Measured Value Acquisition)
The analog/digital converter supplies a raw measuring value of 16 bits. This
corresponds to a resolution of 65,535 parts. The A/D converter is operated in
uni-polar mode, but low negative voltages (-4% full scale = total weighing
range) can also be acquired.
The raw measuring value (converter value) is determined every 20 msec
(every 100 msec for SIWAREX U up to release status 4) and is represented as
uni-polar (i.e., without sign).
Since the SIWAREX U has been precalibrated at the factory, the module can
be exchanged without having to adjust the scales again. A test weight can be
used to adjust the SIWAREX U, or a theoretical adjustment can be performed
using the characteristic value and nominal load of the load cell.
Adjustment weights are not required for the theoretical adjustment.
Description
Calibration
Function Descri
p
tion
3-3
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
3.2 Digital Filtering
An adjustable digital filter compensates for interference caused by vibration
and load fluctuations, for example. This filter is particularly recommended if
you are using worm drives, vibrating troughs and mixers.
The digital filter has the following features:
SCritical damped filter to the 4th power
SSettable filter frequencies: 0.05 to 5 Hz (factory setting = 2 Hz)
SA floating mean value filter (MVF) can be switched in front of the digital
filter.
Illegal filter settings are rejected, and the old value is retained. The filtered,
raw, measured value can be viewed in the service data area.
Mean
value
filter
Digital filter Filtered
raw value
Unfiltered
raw value
Mean value of 32
measured values
Figure 3-1 Filtering principle of the SIWAREX U
Table 3-1 A/D conversion
Function Data Record, Channel 1 (Channel 2) Format Comments
S5 S7
DR
No.
DR
No.
From
DR
Byte
DR
Bit
Length
(Byte)
Filter setting 65 3 (4) 2 5-8 10 WORD Bit 8=0: MVF Inactive (*)
Bit 8=1: MVF Active
Bit 7-5=000: DF = off
Bit 7-5=001: DF = 5 Hz
Bit 7-5=010: DF = 2 Hz
(
*
)
Bit 7
-
5=010: DF = 2 Hz ( )
Bit 7-5=011: DF = 1 Hz
Bit 7-5=100: DF = 0.5 Hz
Bit 7-5=101: DF = 0.2 Hz
Bit 7-5=110: DF = 0.1 Hz
Bit 7-5=111: DF = 0.05 Hz
Filtered raw va- 73 31 4 - 10 INT Unit = digit
lue (32)
g
(*) Factory setting of SIWAREX U
Description
Filtering principle
Function Descri
p
tion
3-4 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
3.3 Weight Calculation and Adjustment
Weight calculation is used to convert raw measured values into standardized,
gross weight values. The required standardization or adjustment factor is
determined during adjustment.
The weight values are represented in integer format, providing a number
range from -32,768 to 32,767 for the representation of weight values.
The characteristic value entry specifies the measuring range set for the
A/D converter. Possible entries are 1, 2 and 4 (i.e., three measuring ranges).
The next greater characteristic value must be specified for the values which
are between 1, 2 or 4. In individual cases, it is also possible to specify a
smaller characteristic value when the load cell(s) is (are) not utilized up to
their nominal load.
All input and output values related to weight refer to the same decimal place.
This makes the internal calculations independent of the decimal place. The
decimal place can be specified between XXXXX and .XXXXX. The deci-
mal place is only relevant for indications.
Adjustment is performed in 2 steps.
During the first step, the filtered raw value is stored (via “set as zero” com-
mand) for the scales zero point in adjustment digit 0.
During the second step, the filtered raw value is stored (via “adjust” com-
mand) for the adjustment weight in adjustment digit 1, and the adjustment
factor is calculated.
Adjustment digits 0 and 1 are indicated when adjustment has been com-
pleted.
Note
When certain commands (i.e., “set as zero”, “adjust” or “factory setting”)
are called directly after each other, a waiting period of 5 seconds must be
maintained between calls. Otherwise the commands will be rejected by the
SIWAREX U.
A timeout prevents the maximum permissible number of write cycles for an
EEPROM from being exceeded by an accidental cyclic call of these com-
mands (see section 3.6).
When an attempt is made to call one of these three commands again within
these 5 seconds, the command is rejected and the 5-second waiting period is
retriggered again.
Weight calculation
Characteristic va-
lue
Decimal place
Adjustment
Function Descri
p
tion
3-5
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
The minimum adjustment weight must be at least 5 % of the measuring range
set. This is checked by the SIWAREX U during the adjustment procedure
( 3,000 digits).
The scales are also adjusted by transferring plausible adjustment digits JD0
and JD1 (JD1 w JD 0 + 3,000 digits).
Weight
Full scale
65,535
2,427 Adjustment
digit 0
Adjustment
digit 1
Adjustment
weight
Adjusted
scales zero
point
Dead load
Adjustment diagonal
Digits
Figure 3-2 Adjustment procedure
When the scales have already been adjusted, readjustment can be performed
with the “set as zero” and/or “adjust” command.
Note
The analog/digital converter supplies a raw measuring value of 16 bits. This
corresponds to a resolution of 65,535 parts. The A/D converter is operated
in uni-polar mode, but low negative voltages (-4 % full scale = total weig-
hing range) can also be acquired.
Readjustment
Function Descri
p
tion
3-6 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
In special situations (e.g., no adjustment weights are available, etc.), a theo-
retical adjustment can be performed although this reduces accuracy depen-
ding on the characteristic value tolerances of the load cells. The theoretical
adjustment is possible because the modules have already been pre-calibrated
at the factory. Use of the theoretical adjustment requires that the physical
setup of the scales be correct (e.g., free of force bypasses, cut-off loads, etc.).
There are 2 ways to perform theoretical adjustment.
1. Calculation of the adjustment digits based on the nominal data of the load
cells
2. Calculation of the adjustment digits based on the measuring logs of the
load cells
Transmission of the JD0 adjustment digits for the zero point of the scales
and the JD1 adjustment digits for the nominal load of the load cells on the
SIWAREX U then replaces adjustment with adjustment weights.
You can calculate the adjustment digits yourself. Or you can enter the load
cell parameters in SIWATOOL and have the calculation done by the program.
Calculation of the adjustment digits also calculates the characteristic curve of
the scales. To conclude theoretical adjustment, the empty scales must be set
to zero. This determines the dead weight and deducts it from the present
weight value.
Calculation of the adjustment digits based on the nominal data of the
load cells
1. Set characteristic value range of the SIWAREX U (i.e., 1, 2 or 4 mV/V).
2. Specify the sum of the load cell nominal loads as the adjustment weight.
3. Enter the value 2,427 digits in “JD0 adjustment digits ”.
4. Calculate JD1:
JD1 +Char. value_WZ 60, 680 digits
Char. val. range of SIWAREX U )2, 427 digits; enter and send
5. Unload the scales, and activate the “set to zero” command.
Remember to use the “set to zero” command and not the “zero point
valid” adjustment command.
An even more precise theoretical adjustment can be achieved if the exact
data (offset and characteristic value) of the load cells used is known (see
measuring log of the load cells).
Theoretical
adjustment
Function Descri
p
tion
3-7
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Calculation of the adjustment digits based on the test records of the load
cells
1. The load cells have a nominal characteristic value of 2 mV/V. Therefore,
the characteristic value range of the SIWAREX U must be set to 0 to
2 mV/V.
2. Specify the sum of the load cell nominal loads as the adjustment weight.
3. Calculate JD0: JD0 +Offset_WZ 60, 680 digits
Char. val. range of SIWAREX U )2, 427 digits
4. Calculate JD1:
JD1 +Char. value_WZ 60, 680 digits
Char. val. range of SIWAREX U )JD0; enter and send
5. Unload the scales and activate the “set to zero” command
(“set to zero” not “zero point valid”!)
Function Descri
p
tion
3-8 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Since there are no adjustment weights for 20-ton, pig iron scales, a theoreti-
cal adjustment is to be performed. The following technical information can
be taken from the measuring logs for the 3 load cells used.
Characteristic Value Offset
Load cell 1 2.0511 mV/V +17.23 mV/V
Load cell 2 1.9998 mV/V -12.47 mV/V
Load cell 3 2.0245 mV/V -9.01 mV/V
Calculated mean values 2.0251 mV/V -1.42 mV/V
Calculation of the adjustment digits:
JD0 +*1.42ĂmVńV 60, 680Ădigits
2ĂmVńV)2, 427Ădigits +2, 384Ădigits
JD1 +2.0251ĂmVńV 60, 680Ădigits
2ĂmVńV)2, 384Ădigits +63, 826Ădigits
Starting with release status 5, the measured value update counter and mea-
sured value update bit functions are available with SIWAREX U modules.
These two functions can be used to determine via the SIMATIC user program
when the SIWAREX U updates its weighing and status values. The functions
are only required for special applications (e.g., when an exact time base is
required for calculation of material flow).
Measured value update bit
The measured value update bit is inverted on the SIWAREX U module each
time the module updates its weighing value. Evaluation of the measured
value update bit makes it mandatory that DR31/DR32 (with SFC commu-
nication) or the I/O area (with I/O communication) be read out at least every
10 msec.
Measured value update counter
The measured value update counter is incremented on the SIWAREX U mod-
ule each time the module updates its weighing value.
When the counter reaches 255, it is reset to 0 during the next measuring
cycle.
The measured value update counter is only available for SFC communica-
tion.
Example:
Ten increments of the measured value update counter (e.g., from 240 to 250
or from 250 to 4) represent ten 20-msec measuring cycles of the
SIWAREX U (i.e., a time period of 200 msec).
Example
Measured value
update counter
Measured value
update bit
Function Descri
p
tion
3-9
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Commands and Messages
Table 3-2 Commands and messages for adjustment
Function Data Record, Channel 1 (Channel 2) Format Comments
S5 S7
DR
No.
DR
No.
From
DR
Byte
DR
Bit
Length
(Byte)
Decimal point 65 3 (4) 2 2-4 10 WORD Bit 4-2=000: xxxxx (*)
Bit 4-2=001: xxxx.x
Bit 4-2=010: xxx.xx
Bit 4-2=011: xx.xxx
Bit 4-2=100: x.xxxx
Bit 4-2=101: .xxxxx
Characteristic value range 65 3 (4) 2 0-1 10 WORD Bit 1-0=00: < 1 mV/V
Bit 1-0=01: < 2 mV/V (*)
Bit 1-0=10: < 4 mV/V
Bit 1-0=11: Reserved
Adjustment digit 0 60 3 (4) 4 10 WORD 0 (*)
Adjustment digit 1 61 3 (4) 6 10 WORD 0 (*)
Adjustment weight 62 3 (4) 8 10 INT 10000 (*)
Set as zero 57 11 (12) 0 2 WORD Selection code (dec.) = 1
Adjust 57 11 (12) 0 2 WORD Selection code (dec.) = 2
Measured value update bit I1.5 31
(32) 2 5 10 BYTE Starting with release status 5
Measured value update
counter -31
(32) 3 10 BYTE Starting with release status 5
Illegal code 76
I1.1
(**)
31
(32)
8 3 10 WORD Synchronous error
Pertains to
- decimal point, for example.
Scales adjusted I1.4 31
(32)
2 4 10 BYTE
Adjustment weight too
small
76
I1.1
(**)
31
(32)
8 0 10 WORD Synchronous error
Wait time of 5 seconds
not adhered to
76
I1.1
(**)
31
(32)
8 6 10 WORD Synchronous error
Job could not be executed
due to a malfunction.
76
I1.1
(**)
31
(32)
8 1 10 WORD Synchronous error
The adjustment weight is
negative.
76
I1.1
(**)
31
(32)
8 7 10 WORD Synchronous error
I/O area: Relative address
(*) Factory setting of SIWAREX U
(**) Group error bit for synchronous errors over input area
Function Descri
p
tion
3-10 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
3.4 Setting to Zero
Soiled scales can cause a shift in the zero point of the scales.
The move zero point command sets the scales zero point of the gross weight
again. This zero point is then used for all subsequent weighing procedures
until the “setting to zero” command is triggered again.
During execution of the setting to zero command, the current digit value is
stored in memory where it is available to the interfaces. When calculating
the weight, the zero setting value is calculated from the difference to the ad-
justed zero point.
The SIWAREX U can be set to zero over the entire measuring range.
Note
A parameterization bit can be selected to specify whether the new zero set-
ting value (calculated when the setting to zero command was triggered) is
only to be stored in the RAM or in both the RAM and the EEPROM. When
the setting to zero command is used frequently, the zero setting value should
only be stored in the RAM since the maximum number of write cycles of an
EEPROM is limited to 100,000 write cycles. See also maximum number of
write cycles of an EEPROM in section 3.6.
When a new zero setting value is specified by a data record transfer (e.g.,
transfer of data records DR3/DR4/DR64 from the SIMATIC to the SIWA-
REX U), the zero setting value is always stored in the EEPROM.
Table 3-3 Setting to zero
Function Data Record, Channel 1 (Channel 2) Format Comments
S5 S7
DR
No.
DR
No.
From
DR
Byte
DR
Bit
Length
(Byte)
Weight value 74
IB2,3
31
(32)
0 10 WORD
Setting to zero 57 11 (12) 0 2 WORD Selection code (dec.) = 3
Zero setting value 64 3 (4) 0 10 WORD 0 (*)
Command cannot be ex-
ecuted since scales are not
adjusted.
76
I1.1
(**)
31
(32)
8 5 10 WORD Synchronous error
Waiting time of 5 sec not
adhered to
76
I1.1
(**)
31
(32)
8 6 10 WORD Synchronous error
Job could not be executed
due to malfunction.
76
I1.1
(**)
31
(32)
8 1 10 WORD Synchronous error
Setting to zero
Function Descri
p
tion
3-11
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 3-3 Setting to zero
Function CommentsFormatData Record, Channel 1 (Channel 2)
Function CommentsFormat
S7S5
Function CommentsFormat
Length
(Byte)
DR
Bit
From
DR
Byte
DR
No.
DR
No.
Storage of the limit values
and the zero setting value
65 3 (4) 2 9 10 WORD Storage in
Bit 9=0: EEPROM (*)
Bit 9=1: RAM
Illegal code 76
I1.1
(**)
31
(32)
8 3 10 WORD Synchronous error
I/O area: Relative address
(*) Factory setting of SIWAREX U
(**) Group error bit for synchronous errors over input area
Function Descri
p
tion
3-12 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
3.5 Limit Values
The SIWAREX U has two parameterizable limit values whose switch-on and
switch-off points can be specified as desired in units of weight. The entries
refer to the gross weight. Any minimum and maximum functions can be pa-
rameterized. The status of the limit values is available as status information.
Separate specification of the switch-on and switch-off point makes it possible
to specify whether the limit value is to be used as minimum or maximum
limit value and how large the hysteresis is to be. A parameterized hysteresis
prevents the limit value output from switching on and off continuously when
the weight value is hovering around the parameterized limit value, for exam-
ple.
Specifying switch-on value > switch-off value provides a maximum limit
value. Specifying switch-off value > switch-on value provides a minimum
limit value.
Note
A parameterization bit can be used to select whether the limit values are
only to be stored in the RAM or in both the RAM and the EEPROM. When
the limit values are changed frequently, the limit values should only be sto-
red in the RAM since the maximum number of write cycles of an EEPROM
is limited to 100,000 write cycles. See also maximum number of write cy-
cles of an EEPROM in section 3.6.
Output Output
ON ON
OFF OFF
Gross Gross
Parameterized as max. limit value Parameterized as min. limit value
Figure 3-3 Example of assigning parameters
!Warning
The limiting values may not be used for safety-related functions.
Description of
limit values
Example
Function Descri
p
tion
3-13
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Specification of switchon value = cutoff value represents a special case.
The table below provides information on this special case.
Table 3-4 Limit values - special cases
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Limit value 1 operates as max. function without hysteresis.
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Active if gross
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
> Switchon/cutoff point 1
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Inactive if gross
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
≤ Switchon/cutoff point 1
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Limit value 2 operates as min. function without hysteresis.
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Active if gross
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
< Switchon/cutoff point 2
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Inactive if gross
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
≥ Switchon/cutoff point 2
Messages and Data
Table 3-5 Limit values
Function Data Record, Channel 1 (Channel 2) Format Comments
S5 S7
DR
No.
DR
No.
From
DR
Byte
DR
Bit
Length
(Byte)
Switch-on point for limit va-
lue 1
66 21
(22)
0 8 INT 10000 (*)
Switch-off point for limit
value 1
67 21
(22)
2 8 INT 9990 (*)
Switch-on point for limit va-
lue 2
68 21
(22)
4 8 INT 1000 (*)
Switch-off point for limit
value 2
69 21
(22)
6 8 INT 1010 (*)
Storage of the limit values
and the zero setting value
65 3 (4) 2 9 10 WORD Storage in:
Bit=0: EEPROM (*)
Bit=1: RAM
Limit value 1 has been trig-
gered
I1.2 31
(32)
2 2 10 WORD Bit=0: LV inactive
Bit=1: LV active
Limit value 2 has been trig-
gered.
I1.3 31
(32)
2 3 10 WORD Bit=0: LV inactive
Bit=1: LV active
I/O area: Relative address
(*) Factory setting of SIWAREX U
Special case
Function Descri
p
tion
3-14 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
3.6 Operational Reliability
To increase operational reliability, the following test procedures are automati-
cally performed during each boot procedure.
SInitialization of the micro-controller
SInitialization of the I/O blocks (e.g., UART, A/D converter, etc.)
SInitialization of the RAM (e.g., pointers, etc.)
SEPROM test
SRAM test
SEEPROM test
SLoad parameterization and adjustment data from EEPROM
SCheck load cell input for wire break
The signal and sense lines are monitored for wire break. When several load
cells are circuited in parallel, the failure of one load cell is not detected (i.e.,
wire break monitoring only up to the junction box). A wire break in the si-
gnal lines is detected when the control limit of the A/D converter is excee-
ded. A wire break in the sense lines is reported when a drop below a mini-
mum voltage occurs. A wire break in the supply lines is detected indirectly
over the sense lines.
The test is performed by the self-test during the booting phase, and then
cyclically during operation.
Booting
Wire break
monitoring
Function Descri
p
tion
3-15
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 3-6 Messages for the test routines
Function Data Record, Channel 1 (Channel 2) Format Comments
S5 S7
DR
No.
DR
No.
From
DR
Byte
DR
Bit
Length
(Byte)
Control limit of AD conver-
ter dropped below or excee-
ded
75
I1.0
(**)
31
(32)
6 0 10 WORD Asynchronous error
Minimum voltage on sense
line dropped below
75
I1.0
(**)
31
(32)
6 1 10 WORD Asynchronous error
Watchdog error 75
I1.0
(**)
31
(32)
6 2 10 WORD Asynchronous error
EPROM error 75
I1.0
(**)
31
(32)
6 3 10 WORD Asynchronous error
EEPROM error 75
I1.0
(**)
31
(32)
6 4 10 WORD Asynchronous error
RAM error 75
I1.0
(**)
31
(32)
6 5 10 WORD Asynchronous error
AD converter error during
read-in
75
I1.0
(**)
31
(32)
6 6 10 WORD Asynchronous error
Number overflow for gross
weight
75
I1.0
(**)
31
(32)
6 7 10 WORD Asynchronous error
Ext. supply voltage (24 V)
missing
75
I1.0
(**)
31
(32)
7 0 10 WORD Asynchronous error
I/O area: Relative address
(*) Factory setting of SIWAREX U
(**) Group error bit for synchronous errors over input area
Function Descri
p
tion
3-16 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
The parameters are stored on an EEPROM, safe from loss due to a power
failure.
!Caution
Since the permissible number of write cycles on the EEPROM is 100,000
cycles, a write-access is only performed when the data to be written differs
from the data already stored on the EEPROM. The parameter data (i.e., set-
ting data, limit values, etc.) are stored on the EEPROM. See section 4 for a
list of data records which are stored in the EEPROM.
When the limit values are changed continuously or the move zero point
command is used frequently, the limit values and the zero setting value
should only be stored in the RAM.
Since the number of write cycles on an EEPROM is limited, cyclic write-ac-
cesses to the EEPROM by the user program should be avoided.
Table 3-7 Storage of the limit values and zero setting value
Function Data Record, Channel 1 (Channel 2) Format Comments
S5 S7
DR
No.
DR
No.
From
DR
Byte
DR
Bit
Length
(Byte)
Storage of the limit values
and the zero setting value
65 3 (4) 2 9 10 WORD Storage in:
Bit=0: EEPROM (*)
Bit=1: RAM
(*) Factory setting of SIWAREX U
Data backup du-
ring power failure
Function Descri
p
tion
3-17
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
3.7 Special Functions
When a data loss occurs or errors are made during parameterization, the fac-
tory setting status of the SIWAREX U can be restored with the “factory set-
ting” command.
The SIWAREX U changes to the “not adjusted” operating mode and accepts
the factory setting as described in section 9. The basic SIMATIC parameters
(DR0/DR1) are not affected by this.
!Caution
When the two-channel model of the SIWAREX U is used, the “factory set-
ting” command takes effect on both channels.
Note
When certain commands (i.e., “set as zero”, “adjust” or “factory setting”)
are called directly after each other, a waiting period of 5 seconds must be
maintained between calls. Otherwise the commands will be rejected by the
SIWAREX U.
A timeout prevents the maximum permissible number of write cycles for an
EEPROM from being exceeded by an accidental cyclic call of these com-
mands (see section 3.6).
When an attempt is made to call one of these three commands again within
these 5 seconds, the command is rejected and the 5-second waiting period
retriggered again.
The status LEDs can be allocated as desired to an internal status bit, permit-
ting the two most important status messages to be indicated for a particular
application.
Table 3-8 Allocation of the status LEDs
Code Status Channel
100 Channel error Channel 1
101 Limit value 1 Channel 1
102 Limit value 2 Channel 1
103 Scales adjusted Channel 1
200 Channel error Channel 2
201 Limit value1 Channel 2
202 Limit value 2 Channel 2
203 Scales adjusted Channel 2
Load default
values
Allocation of the
status LEDs
Function Descri
p
tion
3-18 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
The measuring channel (measuring channels for two-channel SIWAREX U
models) can be switched on and off. If, for example, only one measuring
channel of a two-channel SIWAREX U is used at first, the second unused
channel should be switched off to prevent it from continuously generating an
error message indicating that the scales are not connected.
The OD (i.e., Output Disable) or BASP (i.e., command output disable) are
not evaluated by the SIWAREX U since the SIWAREX U is not equipped
with I/O devices. In the S5, S7 and M7 system, the OD/BASP signal (i.e.,
CPU operating state Stop) stops interrupts from being output.
The “100 msec measuring cycle” command sets the measuring cycle from
20 msec to 100 msec for SIWAREX U modules starting with release status 5.
The command is used exclusively for service purposes and affects both chan-
nels on a two-channel module. Since the setting is only stored in the RAM,
the command must be repeated each time the power is turned off/on.The
SIWAREX U can also be reset to 20-msec mode by the “load factory set-
tings” command.
Table 3-9 Messages for the special functions
Function Data Record, Channel 1 (Channel 2) Format Comments
S5 S7
DR
No.
DR
No.
From
DR
Byte
DR
Bit
Length
(Byte)
Load factory setting 57 11 (12) 0 2 WORD Selection code (dec.) = 5
100 msec measuring cycle
(only for service purposes) 57 11 (12) 0 2 WORD
Selection code (dec.) = 100
(only for SIWAREX U star-
ting with release
status 5)
Allocation, LED 1 63 5 3 6 BYTE Selection code 101 (*)
Allocation, LED 2 63 5 4 6 BYTE Selection code 102 (*)
Channel in operation 65 3 (4) 2 10 10 WORD 0 = channel on (*)
1 = channel off
A nonexistent or inactive
channel was addressed.
76
I1.1
(**)
31
(32)
8 2 10 WORD Synchronous error
Illegal code 76
I1.1
(**)
31
(32)
8 3 10 WORD Synchronous error
I/O area: Relative address
(*) Factory setting of SIWAREX U
(**) Group error bit for synchronous errors over input area
Channel on/off
OD/BASP function
100 msec measu-
ring cycle (only for
service purposes)
Function Descri
p
tion
4-1
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Overview of System Integration
This section describes the available links to various host systems.
4
4-2 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
4.1 System Integration
There are several ways to link the SIWAREX U with a higher order host sy-
stem.
The P bus interface (i.e., the internal I/O bus of the SIMATIC S7) on the back
of the housing can be used to integrate the SIWAREX U as a function module
directly in the SIMATIC S7-300 or SIMATIC M7-300. The SIWAREX U
can also be decentrally connected to the SIMATIC S5, SIMATIC S7 or
SIMATIC M7 with the modular ET 200M I/O device (slave interface
IM 153–1 or IM 153–2).
The RS 232C serial interface permits connection to other host systems (e.g.,
a host computer).
!Caution
No priorities or modification rights are assigned to the individual interfaces
with respect to the use of various interfaces. This means that all commands
assigned to the interfaces can be issued without restriction to all interfaces at
all times. It is up to the user to ensure realistic utilization.
IM 153-1/2IM 308-C
S7/M7
S5
Host
SIWAREX U
P bus
RS 232C
PROFIBUS-DP
S7
C7
PCS 7
Figure 4-1 Possible links to a host system
Description
Configurator
Overview of S
y
stem Inte
g
ration
4-3
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
!Caution
Since only 100,000 write cycles are guaranteed for the EEPROM, write-ac-
cesses are only performed when the data to be written differ from the data in
the EEPROM. Parameter data (i.e., settings, limit values, etc.) are stored on
the EEPROM.
Since the number of write cycles is limited with an EEPROM, cyclic write-
accesses to the EEPROM by the user program should be avoided.
Overview of S
y
stem Inte
g
ration
4-4 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
The following table gives you an overview of data records which are provi-
ded by the SIWAREX U and are required for communication with a host sy-
stem.
Table 4-1 Overview of the data records
DR No. Function Chan-
l1)
Length
Bt
Interfaces
2)
Hex. Dec. nel1) Bytes SFC/DR I/O RS 232 EEPROM
S7 data
d
ÁÁÁ
ÁÁÁ
0/1
ÁÁÁ
ÁÁÁ
0/1
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Diagnostic data
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
4/16
ÁÁÁÁ
ÁÁÁÁ
O
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
records
ÁÁÁ
ÁÁÁ
0/1
ÁÁÁ
ÁÁÁ
0/1
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Basic parameters
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
4/16
ÁÁÁÁ
ÁÁÁÁ
I
ÁÁÁ
ÁÁÁ
I
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
Á
Á
Á
ÁÁÁ
3
ÁÁÁ
Á
Á
Á
ÁÁÁ
3
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Adjustment data and
scales parameters
ÁÁÁ
Á
Á
Á
ÁÁÁ
1
ÁÁÁ
Á
Á
Á
ÁÁÁ
10
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
I/O
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
I/O
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
Yes
ÁÁÁ
ÁÁÁ
4
ÁÁÁ
ÁÁÁ
4
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Adjustment data and
scales parameters
ÁÁÁ
ÁÁÁ
2
ÁÁÁ
ÁÁÁ
10
ÁÁÁÁ
ÁÁÁÁ
I/O
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
Yes
ÁÁÁ
ÁÁÁ
5
ÁÁÁ
ÁÁÁ
5
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
General parameters
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
6
ÁÁÁÁ
ÁÁÁÁ
I/O
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
Yes
ÁÁÁ
Á
Á
Á
ÁÁÁ
6
ÁÁÁ
Á
Á
Á
ÁÁÁ
6
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Specified value,
remote display
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁ
Á
Á
Á
ÁÁÁ
4
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
I/O
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
I/O
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
B
ÁÁÁ
ÁÁÁ
11
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Commands
ÁÁÁ
ÁÁÁ
1
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
I
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
C
ÁÁÁ
ÁÁÁ
12
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Commands
ÁÁÁ
ÁÁÁ
2
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
I
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
15
ÁÁÁ
ÁÁÁ
21
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Limit values
ÁÁÁ
ÁÁÁ
1
ÁÁÁ
ÁÁÁ
8
ÁÁÁÁ
ÁÁÁÁ
I/O
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
3)
ÁÁÁ
ÁÁÁ
16
ÁÁÁ
ÁÁÁ
22
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Limit values
ÁÁÁ
ÁÁÁ
2
ÁÁÁ
ÁÁÁ
8
ÁÁÁÁ
ÁÁÁÁ
I/O
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
3)
ÁÁÁ
Á
Á
Á
ÁÁÁ
1F
ÁÁÁ
Á
Á
Á
ÁÁÁ
31
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Measured values/status/
error
ÁÁÁ
Á
Á
Á
ÁÁÁ
1
ÁÁÁ
Á
Á
Á
ÁÁÁ
10
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
O
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
I
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
No
ÁÁÁ
Á
Á
Á
20
ÁÁÁ
Á
Á
Á
32
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
Measured values/status/
error
ÁÁÁ
Á
Á
Á
2
ÁÁÁ
Á
Á
Á
10
ÁÁÁÁ
Á
ÁÁ
Á
O
ÁÁÁ
Á
Á
Á
-
ÁÁÁÁ
Á
ÁÁ
Á
I
ÁÁÁÁ
Á
ÁÁ
Á
No
ÁÁÁ
Á
Á
Á
28
ÁÁÁ
Á
Á
Á
40
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
Version/checksum
ÁÁÁ
Á
Á
Á
-
ÁÁÁ
Á
Á
Á
8
ÁÁÁÁ
Á
ÁÁ
Á
O
ÁÁÁ
Á
Á
Á
-
ÁÁÁÁ
Á
ÁÁ
Á
I
ÁÁÁÁ
Á
ÁÁ
Á
No
S5/S7
dt
ÁÁÁ
Á
Á
Á
39
ÁÁÁ
Á
Á
Á
57
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
Commands
ÁÁÁ
Á
Á
Á
X
ÁÁÁ
Á
Á
Á
2
ÁÁÁÁ
Á
ÁÁ
Á
-
ÁÁÁ
Á
Á
Á
I
ÁÁÁÁ
Á
ÁÁ
Á
-
ÁÁÁÁ
Á
ÁÁ
Á
No
data
records
ÁÁÁ
Á
Á
Á
3A
ÁÁÁ
Á
Á
Á
58
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
Module number
ÁÁÁ
Á
Á
Á
-
ÁÁÁ
Á
Á
Á
2
ÁÁÁÁ
Á
ÁÁ
Á
-
ÁÁÁ
Á
Á
Á
I/O
ÁÁÁÁ
Á
ÁÁ
Á
-
ÁÁÁÁ
Á
ÁÁ
Á
Yes
records
(once per
ÁÁÁ
Á
Á
Á
3B
ÁÁÁ
Á
Á
Á
59
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
Interface parameters
ÁÁÁ
Á
Á
Á
-
ÁÁÁ
Á
Á
Á
2
ÁÁÁÁ
Á
ÁÁ
Á
-
ÁÁÁ
Á
Á
Á
I/O
ÁÁÁÁ
Á
ÁÁ
Á
-
ÁÁÁÁ
Á
ÁÁ
Á
Yes
(p
channel)
ÁÁÁ
ÁÁÁ
3C
ÁÁÁ
ÁÁÁ
60
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Adjustment digit 0
ÁÁÁ
ÁÁÁ
X
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
Yes
ÁÁÁ
Á
Á
Á
3D
ÁÁÁ
Á
Á
Á
61
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
Adjustment digit 1
ÁÁÁ
Á
Á
Á
X
ÁÁÁ
Á
Á
Á
2
ÁÁÁÁ
Á
ÁÁ
Á
-
ÁÁÁ
Á
Á
Á
I/O
ÁÁÁÁ
Á
ÁÁ
Á
-
ÁÁÁÁ
Á
ÁÁ
Á
Yes
ÁÁÁ
Á
Á
Á
3E
ÁÁÁ
Á
Á
Á
62
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
Adjustment weight
ÁÁÁ
Á
Á
Á
X
ÁÁÁ
Á
Á
Á
2
ÁÁÁÁ
Á
ÁÁ
Á
-
ÁÁÁ
Á
Á
Á
I/O
ÁÁÁÁ
Á
ÁÁ
Á
-
ÁÁÁÁ
Á
ÁÁ
Á
Yes
ÁÁÁ
Á
Á
Á
3F
ÁÁÁ
Á
Á
Á
63
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
LED allocation
ÁÁÁ
Á
Á
Á
-
ÁÁÁ
Á
Á
Á
2
ÁÁÁÁ
Á
ÁÁ
Á
-
ÁÁÁ
Á
Á
Á
I/O
ÁÁÁÁ
Á
ÁÁ
Á
-
ÁÁÁÁ
Á
ÁÁ
Á
Yes
ÁÁÁ
Á
Á
Á
40
ÁÁÁ
Á
Á
Á
64
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
Zero setting value
ÁÁÁ
Á
Á
Á
X
ÁÁÁ
Á
Á
Á
2
ÁÁÁÁ
Á
ÁÁ
Á
-
ÁÁÁ
Á
Á
Á
I/O
ÁÁÁÁ
Á
ÁÁ
Á
-
ÁÁÁÁ
Á
ÁÁ
Á
Yes
ÁÁÁ
Á
Á
Á
ÁÁÁ
41
ÁÁÁ
Á
Á
Á
ÁÁÁ
62
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Char. value of LC/filter/
setting data
ÁÁÁ
Á
Á
Á
ÁÁÁ
X
ÁÁÁ
Á
Á
Á
ÁÁÁ
2
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
-
ÁÁÁ
Á
Á
Á
ÁÁÁ
I/O
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
Yes
1) Explanation:
1: Only channel 1
2: Only channel 2
X: Both channels
-: Not dependent on channel
2) I: Input (from external source to SIWAREX U)
O: Output (from SIWAREX U to external source)
3) Dependent on parameterization bit
Overview of
data records
Overview of S
y
stem Inte
g
ration
4-5
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 4-1 Overview of the data records
Interfaces
2)
Length
Bytes
Chan-
nel1)
FunctionDR No.
EEPROMRS 232I/OSFC/DR
Length
Bytes
Chan-
nel1)
Function
Dec.Hex.
S5/S7
dt
ÁÁÁ
ÁÁÁ
42
ÁÁÁ
ÁÁÁ
66
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Limit value 1 on
ÁÁÁ
ÁÁÁ
X
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
3)
data
records
ÁÁÁ
ÁÁÁ
43
ÁÁÁ
ÁÁÁ
67
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Limit value 1 off
ÁÁÁ
ÁÁÁ
X
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
3)
records
(once per
ÁÁÁ
ÁÁÁ
44
ÁÁÁ
ÁÁÁ
68
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Limit value 2 on
ÁÁÁ
ÁÁÁ
X
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
3)
(p
channel)
ÁÁÁ
ÁÁÁ
45
ÁÁÁ
ÁÁÁ
69
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Limit value 2 off
ÁÁÁ
ÁÁÁ
X
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
3)
ÁÁÁ
ÁÁÁ
46
ÁÁÁ
ÁÁÁ
70
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Specification value1 for
TTY
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
Á
Á
Á
ÁÁÁ
47
ÁÁÁ
Á
Á
Á
ÁÁÁ
71
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Specification value2 for
TTY
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁ
Á
Á
Á
ÁÁÁ
2
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
-
ÁÁÁ
Á
Á
Á
ÁÁÁ
I/O
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
48
ÁÁÁ
ÁÁÁ
72
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Remote display type
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
Yes
ÁÁÁ
ÁÁÁ
49
ÁÁÁ
ÁÁÁ
73
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Current digit value
ÁÁÁ
ÁÁÁ
X
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁ
ÁÁÁ
O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
4A
ÁÁÁ
ÁÁÁ
74
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Gross
ÁÁÁ
ÁÁÁ
X
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁ
ÁÁÁ
O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
4B
ÁÁÁ
ÁÁÁ
75
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Asynchronous errors
ÁÁÁ
ÁÁÁ
X
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁ
ÁÁÁ
O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
4C
ÁÁÁ
ÁÁÁ
76
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Synchronous errors
ÁÁÁ
ÁÁÁ
X
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁ
ÁÁÁ
O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
4D
ÁÁÁ
ÁÁÁ
77
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Version
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁ
ÁÁÁ
O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
4E
ÁÁÁ
ÁÁÁ
78
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Checksum
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁ
ÁÁÁ
O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
4F
ÁÁÁ
ÁÁÁ
79
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Reserved
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁ
ÁÁÁ
O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
Commu-
nication
ÁÁÁ
ÁÁÁ
64
ÁÁÁ
ÁÁÁ
100
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Fetch telegram
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
1
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I
ÁÁÁÁ
ÁÁÁÁ
No
n
i
ca
ti
on
tele-
grams
ÁÁÁ
Á
Á
Á
ÁÁÁ
65
ÁÁÁ
Á
Á
Á
ÁÁÁ
101
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Acknowledgment
telegram
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁ
Á
Á
Á
ÁÁÁ
3
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
-
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
O
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
No
1) Explanation:
1: Only channel 1
2: Only channel 2
X: Both channels
-: Not dependent on channel
2) I: Input (from external source to SIWAREX U)
O: Output (from SIWAREX U to external source)
3) Dependent on parameterization bit
!Caution
When channel independent data records are transfered to the module and a
two-channel module is used, the data can be transferred for the first or se-
cond channel. When different values are transferred for both channels si-
multaneously, the value for channel 2 overwrites the value for channel 1.
Overview of S
y
stem Inte
g
ration
4-6 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Overview of S
y
stem Inte
g
ration
5-1
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
SIMATIC S7
Note
A knowledge of the SIMATIC S7 is required for comprehension of the steps
described in this section.
The SIWAREX U is linked as an intelligent function module to the
SIMATIC S7-300 system. The interface to the S7 CPU is the backplane I/O
bus (P-bus). Since communication between the CPU and the SIWAREX U is
handled by either the system functions (SFCs) of the S7 CPU or via the I/O
area, no special function block is required for this communication.
Communication will be discussed using a sample STEP 7 program. The
RD_REC (SFC 59) and WR_REC (SFC 58) system functions are used in the
sample program.
The S7 SETUP program must be executed so that the SIWAREX U module is
listed in the STEP 7 module catalog. In addition to linking the SIWAREX U
in STEP 7, sample STEP 7 programs and SIWATOOL are installed.
Basic parameters DR0 and DR1 can be modified in HW-CONFIG (STEP 7).
During rack configuration, the parameterization window of the basic parame-
ters (DR0 and DR1) can be accessed with a double-click after the
SIWAREX U modules have been entered (either one or two-channel SIWA-
REX U models possible). Modified data are stored in an SDB and thus trans-
ferred from the CPU to the module each time a startup occurs.
The following can be selected for the basic parameters in the parameter as-
signment window.
SSFC communication (data record communication)
Or
SI/O communication
In addition, the process interrupts and/or diagnostic alarms can be enabled or
disabled.
Introduction
SETUP
DR0 and DR1 basic
parameters
5
5-2 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
The section only describes SFC communication. I/O communication is de-
scribed in Chapter 6.8. (Connection to SIMATIC S5) and can also be used in
SIMATIC S7.
User-related parameters (i.e., parameters for the scales) are kept in data re-
cords (DR3 to DR6, 21 and 22, 57 to 79) by the SIWAREX U. They can be
transferred in both directions (i.e., read/write).
The transfer can be triggered in the following ways:
a) By the user program (communication via SFCs or I/O)
b) By the user, using SIWATOOL
RS 232C
DR3-DR22
MPI
DR0/DR1
Program-
mer (PG)
S7-CPU SIW. U
Figure 5-1 Parameterization configuration
Connecting and disconnecting the SIWAREX U under power can only be
performed in connection with an active backplane bus of the S7-300.
The active backplane bus is based on a special version of the modular
ET 200M I/O device which is connected to a SIMATIC S7-400 via
PROFIBUS-DP.
When limit values 1 and 2 are exceeded, a process interrupt can be trigge-
red based on the entry in parameter data record 0.
User-related data
records
Parameterization
configuration
Active backplane
bus
Process interrupt
SIMATIC S7
5-3
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
If enabled in parameter data record 0, external or internal asynchronous er-
rors are reported with a diagnostic alarm.
Handling or data errors which may occur when data or commands are being
transferred are made available to the user in a data record. See section 5.1.
An interrupt is not triggered.
The sample programs are installed in STEP 7 via the S7 setup and located
under “Projects”.
Diagnostic alarm
(asynchronous
errors)
Handling and data
errors
(synchronous
errors)
Sample programs
for SIMATIC S7
SIMATIC S7
5-4 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
5.1 Diagnostic Capabilities in the SIMATIC S7 Program
Synchronous errors are reported in data records DR31 (for weighing
channel 1) and DR32 (for weighing channel 2 of a two-channel module).
Proceed as follows.
1. Transfer a data record to the SIWAREX U or trigger a command.
2. Read DR31 or DR32 to determine whether an error has occurred when the
data were transferred or the command was triggered. Any error informa-
tion remains entered in DR31 or DR32 until new data are transferred or a
command is triggered.
If a diagnostic alarm is enabled (see parameter data record 0), asynchronous
errors are reported with diagnostic alarms to the S7 CPU. The diagnostic
messages can be evaluated via local data of OB82 or via diagnostic data re-
cords 0 and 1.
Proceed as follows.
1. When a diagnostic alarm is triggered, the diagnostic alarm OB (OB82) is
called. If the S7 CPU does not have this OB, the CPU assumes STOP
status.
2. When the diagnostic alarm is to be evaluated, a program for evaluating
the local data of OB82 or diagnostic data records DR0 and DR1 must be
implemented in OB82. See section 10 for the layout of data records DR0
and DR1.
For additional details on evaluating DR0 and DR1, see the reference ma-
nual of the SIMATIC S7-300/400.
Alternate methods:
Asynchronous errors can also be determined by reading data records D31/32
(e.g., when the diagnostic alarm is disabled). Remember, however, that
short-term errors may not be acquired when the duration of the error is short
in comparison to the cycle in which the data records are read out.
!Warning
In the event of errors and faults, suitable measures must be implemented to
make the system safe.
Synchronous
errors
Asynchronous
errors
SIMATIC S7
5-5
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
The module status of the SIWAREX U can be indicated via STEP 7.
Asynchronous errors
Asynchronous errors are reported to the SIMATIC CPU as diagnostic alarms
which can be indicated with STEP 7. See figure on diagnostic alarm register.
Diagnostic buffer on the SIWAREX U
Starting with release status 5, SIWAREX U modules have their own diagnos-
tic buffer. Synchronous and asynchronous error messages are entered in this
diagnostic buffer and, if necessary, can be indicated via the module informa-
tion in STEP 7. See figure on diagnostic buffer register. The last 9 entries
are listed chronologically. Since the SIWAREX U does not have a clock,
time information is relative to the time the SIWAREX U module was turned
on.
No entries are made for the date.
To be able to indicate the diagnostic buffer of the SIWAREX U in STEP 7,
you will need a SIWAREX U configuration package
(order no. 7MH4 683-3AA6* and at least version 5 of STEP 7).
Figure 5-2 Module status in STEP 7
Module status
(STEP 7)
SIMATIC S7
5-6 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
5.2 Evaluation of the Process Interrupts
When process interrupts are enabled (see parameter data record 0), exceeded
limit values are reported to the S7 CPU with process interrupts. These pro-
cess interrupt messages can be evaluated via the local data of OB40.
Procedure:
1. When a process interrupt is triggered, the process interrupt OB (i.e.,
OB40) is called. If this OB is not loaded in the S7 CPU, the CPU
assumes the “STOP” operating state.
2. When a process interrupt is to be evaluated, a program for evaluating the
local data of OB40 must be provided in OB40.
For additional information on evaluation of the local data of OB40, see
the reference manual of the SIMATIC S7-300/400.
Example of evaluating the local data of OB40:
OB40_MDL_ADDR: Reports the logical base address of the module
which triggered the interrupt
OB40_POINT_ADDR: Corresponds to local data double word 8
The meanings of the individual bits of local data
byte 8 are listed below.
Bit 0: Channel 1, limit value 1, arriving
Bit 1: Channel 1, limit value 1, departing
Bit 2: Channel 1, limit value 2, arriving
Bit 3: Channel 1, limit value 2, departing
Bit 4: Channel 2, limit value 1, arriving
Bit 5: Channel 2, limit value 1, departing
Bit 6: Channel 2, limit value 2, arriving
Bit 7: Channel 2, limit value 2, departing
Alternate method:
Another method (e.g., when process interrupts are disabled) is to determine
exceeded limit values by reading one of the following.
SData records DR31/32 (for data record communication)
SThe status in the input area of the CPU (for I/O communication)
Remember, however, that briefly exceeded limit values may sometimes not
be acquired if the duration of the message is short in comparison to the read
cycle of the data records.
Process interrupts
SIMATIC S7
5-7
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
5.3 Writing a Data Record with SFC58 “WR_REC”
With SFC58 “WR_REC” (write record), you transfer the data record contai-
ned in RECORD to the addressed module.
You start the write job by assigning the value 1 to the input parameter REQ
when SFC58 is called. If the write job could be executed immediately, the
SFC returns the value 0 at the output parameter BUSY. If BUSY has the va-
lue 1, writing is not yet completed.
Table 5-1 Parameters for SFC 58 “WR_REC”
Parameter Declaration Data
Type
Memory Area Description
REQ INPUT BOOL I, Q, M, D, L, const. REQ = 1: Request to write
IOID INPUT BYTE I, Q, M, D, L, const. For SIWAREX U: Always B#16#54
LADDR INPUT WORD I, Q, M, D, L, const. Logical address of the module
RECNUM INPUT BYTE I, Q, M, D, L, const. Data record number (permissible values: 3 to 22)
For description of the data records,
see section 9.
RECORD INPUT ANY I, Q, M, D, L Data record. Only data type BYTE is permitted.
RET_VAL OUTPUT INT I, Q, M, D, L If an error occurs while the function is being pro-
cessed, the return value contains an error code.
BUSY OUTPUT BOOL I, Q, M, D, L BUSY = 1: The write-access has not been conc-
luded yet.
The data to be transferred are read from the RECORD parameter when the
SFC is first called. If transmission of the data record takes longer than one
call, the contents of the RECORD parameter are no longer relevant the next
time the SFC is called for the same job.
Description
Parameters
Input parameter
RECORD
SIMATIC S7
5-8 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
If an error occurs while the function is being processed, the return value con-
tains an error code. See table 5-3.
Note
(Only for S7-400)
If general error W#16#8544 occurs, this only means that access to at least
one byte of the I/O memory area containing the data record was denied.
Data transmission was continued.
Specification of the number of the data record to be written.
For a detailed description of the data records, see section 10.
Error information
Input parameter
RECNUM
SIMATIC S7
5-9
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
5.4 Read Data Record with SFC 59 “RD_REC”
SFC 59 “RD_REC” (read record) is used to read the data record with the
number RECNUM from the addressed SIWAREX U module. The read pro-
cedure is started by assigning 1 to the REQ input parameter when SFC 59 is
called. If the read-access was able to be executed immediately, the SFC re-
turns the value 0 in the BUSY output parameter. If BUSY contains the value
1, the read-access has not been concluded yet. After correct data transmis-
sion, the data record which was read is entered in the target area specified by
RECORD.
Table 5-2 Parameters for SFC 59 “RD_REC”
Parameter Declaration Data Type Memory Area Description
REQ INPUT BOOL I, Q, M, D, L, const. REQ = 1: Request to read
IOID INPUT BYTE I, Q, M, D, L, const. For SIWAREX U: Always B#16#54
LADDR INPUT WORD I, Q, M, D, L, const. Logical address of the module
RECNUM INPUT BYTE I, Q, M, D, L, const. Data record number
(permissible values: 3 to 40)
For description of the data records,
see section 10.
RET_VAL OUTPUT INT I, Q, M, D, L If an error occurs while the function is being
processed, the return value contains an error
code.
BUSY OUTPUT BOOL I, Q, M, D, L BUSY = 1:
The read-access has not been concluded yet.
RECORD OUTPUT ANY I, Q, M, D, L Target area for the data record which was
read
Specification of the number of the data record to be written
For a detailed description of the data records, see section 10.
Description
Parameters
Input parameter
RECNUM
SIMATIC S7
5-10 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
If an error occurred while the function was being processed, the return value
contains an error code. See table 5-3.
Note
(Only for S7-400)
If general error W#16#8745 occurs, this only means that access to at least
one byte was not possible during the write-access to the process image. The
data record was read correctly by the module and written to the I/O memory
area.
The length information contained in the RECORD output parameter is inter-
preted as follows.
Length of the data to be read from the selected data record (i.e., the length
information contained in RECORD may not be greater than the actual length
of the data record).
We recommend selecting the length of the actual data record as the length of
RECORD.
A distinction is made between two types of errors in the “real” error informa-
tion (error codes W#16#8xyz) in table 5-3.
Temporary errors (error codes W#16#80A2 to 80A4, and 80Cx)
⇒ Repeat the procedure (call SFC again).
Example of a temporary error:
Required resources are temporarily busy (W#16#80C3).
Permanent errors (error codes W#16#809x, 80A0, 80A1, and 80Bx)
This type of error will not correct itself (i.e., its correction requires action by
you). There is no point in calling the SFC again until you have corrected the
error.
Example of a permanent error:
Wrong length specified in RECORD (W#16#80B1)
Table 5-3 Specific error information for SFC 58 “WR_REC” and SFC 59 “RD_REC”
Error Code
(W#16#...)
Explanation Restrictions
7000 First call with REQ = 0: No data transmission active. BUSY has
value 0.
-
7001 First call with REQ = 1: Data transmission triggered. BUSY has
value 1.
Distributed I/O
7002 Interim call (REQ irrelevant): Data transmission already active.
BUSY has value 1.
Distributed I/O
8090 Specified logical base address invalid: No assignment exists in
SDB1/SDB2x or there is no base address.
-
Output parameter
RET_VAL
RECORD
Error information
SIMATIC S7
5-11
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 5-3 Specific error information for SFC 58 “WR_REC” and SFC 59 “RD_REC”
Error Code
(W#16#...)
RestrictionsExplanation
8092 ANY reference contains a type other than BYTE. Only with S7-400
8093 The module selected via LADDR and IOID is not permitted for
this SFC. Permitted are S7-300 modules for S7-300, S7-400
modules for S7-400, and S7-DP modules for S7-300 and
S7-400.
-
80A0 Negative acknowledgment while reading from the module (i.e.,
module removed during the read-access or module defective).
Only for SFC 59 “RD_REC”
80A1 Negative acknowledgment while writing to the module (i.e.,
module removed during the write-access or module defective).
Only for SFC 58 “WR_REC”
80A2 DP protocol error in layer 2, possibly hardware fault. Distributed I/O
80A3 DP protocol error for user interface/user, possibly hardware fault. Distributed I/O
80B0 SFC for module type not possible
Module does not recognize the data record.
Data record number ≥ 241 not permitted.
Data records 0 and 1 are not permitted for SFC 58 “WR_REC.”
This error can also occur when the SIWAREX U is addressed via
SFCs although I/O communication is set as the type of commu-
nication.
-
80B1 Wrong length in RECORD parameter For SFC 58 “WR_REC”:
Wrong length
For SFC 59 “RD_REC”:
Specification > DR length
80B2 The configured slot is not being used. -
80B3 Actual module type is not the module type in SDB1. -
80C0 The module has the data record, but there are still no data to be
read
-
80C1 The data of the previous write job on the module for the same
data record have not yet been processed by the module.
-
80C2 The module is currently processing the maximum possible
amount of jobs for a CPU.
-
80C3 Required resources (e.g., memory, and so on) are currently busy. -
80C4 Communication error:
Parity error
SW-Ready not set
Error in block length calculation
Checksum error on CPU side
Checksum error on module side
-
80C5 Distributed I/O not available Distributed I/O
80C6 Transmission of data record was terminated due to priority class
termination (restart or background).
Distributed I/O
SIMATIC S7
5-12 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Note
For additional information on error codes which are not listed here, see the
documentation of the SIMATIC S7.
SIMATIC S7
5-13
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
5.5 Sample Program
The specified values are stored in data block DB50 starting at address 30
(4 bytes). These values should be transferred to the SIWAREX U.
CALL SFC 58
REQ :=TRUE // Request to write
IOID :=B#16#54 // 54 means I/O module
LADDR :=W#16#100 // Module address 256
RECNUM :=B#16#6 // Data record number 6 (specified values)
RECORD :=P#DB50.DBX 30.0 BYTE 4
RET_VAL :=MW200 // Return value (error code)
BUSY :=M210.0 // BUSY status
Note on RECORD: Data from data block DB50
Starting at address 30.0
Data record length: 4 bytes
If the data record length is specified
incorrectly, this is reported with an
appropriate error code.
The measured value, status and so on (data record 31) is to be read from the
SIWAREX U and stored in data block DB50 starting at address 0.0 (total of
10 bytes).
CALL SFC 59
REQ :=TRUE // Request to read
IOID :=B#16#54 // 54 means I/O module
LADDR :=W#16#100 // Module address 256
RECNUM :=B#16#1F // Data record number 31 (measured values, etc.)
RET_VAL :=MW200 // Return value (error code)
BUSY :=M210.0 // BUSY status
RECORD :=P#DB50.DBX 0.0 BYTE 10
Note on RECORD: Data in data block DB50
Starting at address 0.0
Data record length: 10 bytes
If the data record length is specified
incorrectly, this is reported with an
appropriate error code.
For the S7 400 CPUs and data set lengths of 2 or 4 bytes, the data source
must be absolutely defined as 2 or 4 bytes because the S7 program editor
otherwise calculates a direct address from the ANY pointer.
Example:
DB10.DBW10 is defined as a word in DB 10 and you write
RECORD=:P#DB10.DBX10.0 Byte 2. The S7 program editor converts this
to DB 10.DBW18, which is not accepted by a S7-400 CPU. Error 0x8092 is
output in the “RET_VAL” of the SFC.
Example of writing
a data record
Example of rea-
ding a data record
SIMATIC S7
5-14 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
SIMATIC S7
6-1
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
SIMATIC S5
Note
A knowledge of the SIMATIC S5 and COM ET200 Windows or
COM PROFIBUS is required for comprehension of the steps described in
this section.
The SIWAREX U module can be linked as distributed I/O to the
SIMATIC S5 using PROFIBUS-DP.
The modular ET 200M I/O device (IM 153-1 or IM 153-2 interface) is
required to link the SIWAREX U modules to PROFIBUS-DP. The
SIMATIC S5 is coupled to PROFIBUS-DP with the IM 308-C interface. A
SIMATIC S5-95U/DP master with integrated PROFIBUS-DP interface can
also be used instead.
6.1 Hardware Prerequisites
Release status 4 or later
When the diagnostics are used:
SIM 308-C, starting with release status 6
(firmware status starting with V3.0)
SFB 192 starting with library number ...-A3 (i.e., release status 3)
Note
An FB 192 with release status 3 can only be used with an IM 308-C starting
with release status 6.
When release status 2 of the FB 192 is used, all versions of the IM 308-C
can be used starting with release status 3.
Link to the SIMA-
TIC S5
IM 308-C
6
6-2 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Note
Loading the firmware to the IM 308-C is described in section 3.5 of the ma-
nual on the ET 200 (release 3). V 3.0 firmware can only be executed on an
IM 308-C starting with release status 6.
Release status 2 or later
The maximum transmission speed is 9600 Kbaud to 1.5 Mbaud, depending
on the cable length.
The transmission speed is limited for the IM 308-C with release status 3
(firmware status 2.0). The speed depends on the capacity of the CPU. The
table below shows the maximum speeds. The values shown in the table are
calculated values.
Table 6-1 Maximum transmission speeds
CPU IM 308-C with Release
Status 3
IM 308-C with Release
Status 4 or Later
CPU 941, 942 19.2 Kbaud 12 Mbaud
CPU 943 93.75 Kbaud 12 Mbaud
CPU 944 1.5 Mbaud 12 Mbaud
CPU 945 12 Mbaud 12 Mbaud
CPU 922 187.5 Kbaud 12 Mbaud
CPU 928 500 Kbaud 12 Mbaud
CPU 946/947 3 Mbaud 12 Mbaud
CPU 948 12 Mbaud 12 Mbaud
SIMATIC S5-95U (starting with release status 2): 1.5 Mbaud
An IM 153-1 (MLFB no: 6ES7 153-1AA02-0XB0), Release status 2 or later
is required for the link.
Up to 7 SIWAREX U modules can be connected to one IM 153-1 interface.
Exception: Maximum of one SIWAREX U per IM 153-1 with distrib-
uted connection to a SIMATIC S5-95U/master DP
Maximum of 8 SIWAREX Us per IM 153-1 with distributed
connection to a SIMATIC S7 (CPU 318-2 DP,
CPU 417-4 DP, CP 443-5 Ext., and IM 467)
S5-95U/DP master
Transmission
speeds
IM 153-1
SIMATIC S5
6-3
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
An IM 153-2 is only required when other modules need it (e.g., FM 353).
Prerequisite for connection is an IM 153-2
(MLFB no. 6ES7 153-2AA01-0XB0) with release status 2 or greater.
A maximum of 7 SIWAREX U modules can be connected to one IM 153-2.
Exception: Maximum of one SIWAREX U per IM 153-2 with distrib-
uted connection to a SIMATIC S5-95U/master DP
Maximum of 8 SIWAREX Us per IM 153-2 with distributed
connection to a SIMATIC S7 (CPU 318-2 DP,
CPU 417-4 DP, CP 443-5 Ext., and IM 467)
6.2 Delivery Form
The SIWAREX U configuration package is delivered on CD-ROM.
For additional information, see the documentation of the configuration pack-
age.
IM 153-2
SIMATIC S5
6-4 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
6.3 Parameterization
There are two ways to parameterize the SIWAREX U.
SParameterization of the SIWAREX U via the PC parameterization soft-
ware “SIWATOOL”
SParameterization of the SIWAREX U via the SIMATIC S5 (via data
record transmission or ForceVar)
The DR0 basic parameters are parameterized with COM PROFIBUS.
The SIWAREX U module is informed of the type of CPU master it is connec-
ted to when the programmable controller starts up. PROFIBUS-DP can be
used to connect the SIWAREX U to a SIMATIC S7 or a SIMATIC S5.
The S5-95U/DP master or IM 308-C interface module is parameterized with
the COM PROFIBUS software. With newer COM PROFIBUS versions,
you should be able to find the SIWAREX U module within the ET 200M
(i.e., the IM 153-1 interface) under its order number 7MH4 601-1*A01. See
figure 7-1.
If you are unable to find the SIWAREX U, you must copy the type or GSD
files contained in the SIWAREX configuration package to the appropriate
directory of COM PROFIBUS. Which files must be copied depends on the
version of COM PROFIBUS which you are using.
SCOM PROFIBUS (version v 3.2): Copy the type files to directory
“TYPDAT5X”.
SCOM PROFIBUS (version w 3.3): Copy the GSD files to the directory
“GSD”.
Figure 6-1 Selection of SIWAREX U module during configuration of the ET 200M
SIWAREX U
COM PROFIBUS
SIMATIC S5
6-5
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 6-2 Type and GSD files
File Name Use
SI801DV*.200 Typ file for IM 153-1
ST801EU*.200 Typ file for IM 153-2
SIM801D.GS* GSD file for IM 153-1
SIM801E.GS* GSD file for IM 153-2
SIM8071.GS* GSD file for IM 153-2 FO
* Identifies the particular language version
Note
The latest GSD files (only for COM PROFIBUS versions w 3.3) can be
downloaded from the Internet (SIMATIC customer support).
Copy the new GSD files to the “GSD” directory, and execute the menu com-
mand “read file > GSD files.”
The disadvantage of using the GSD files included in the SIWAREX configu-
ration package is that you will not have the latest GSD file and may not be
able to find other new modules, for example.
The type files are only required for older COM PROFIBUS versions v 3.2.
In the future, they will be completely replaced by the GSD files.
SIMATIC S5
6-6 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
6.4 Addressing the SIWAREX U
The same start address is used for the input area and the output area. The
SIWAREX U module occupies 16 bytes in the input area and 16 bytes in the
output area. The module address must be a whole-number multiple of 16.
The start address is also required for the configuration via COM PROFIBUS.
Addressing in the process image (i.e., PY0 to PY127) is not permitted.
Table 6-3 Possible addresses
SIWAREX U number1) 12345678
Possible SIWAREX U addresses P: 128 144 160 176 192 208 224 240
SIWAREX U number 9 10 11 12 13 14 15 16
Possible SIWAREX U addresses Q: 0 16 32 48 64 80 96 112
SIWAREX U number 17 18 19 20 21 22 23 24
Possible SIWAREX U addresses Q: 128 144 160 176 192 208 224 240
1) There is no fixed relationship between the SIWAREX U number and the address. Up to 24 SIWAREX U modules
can be connected to each IM 308-C interface.
Input/output bytes 64 to 127 are used for both the local I/O (e.g., analog in-
put/output modules, slots 0 to 7) and the distributed I/O (i.e., DP slaves).
When the local I/O is used (e.g., analog input/output modules), the address
areas must be reserved by the user in the host parameters with
COM PROFIBUS.
Table 6-4 Possible addresses
SIWAREX U number 12345678
Possible SIWAREX U addresses P: 64 80 96 112 128 144 160 176
Module address
(when IM 308-C is
used)
Module address
when using the
S5-95U/DP
SIMATIC S5
6-7
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Data consistency must be ensured when accessing the distributed I/O. Data
are called consistent when their contents belong together.
SIMATIC S5-95U/DP master
There are two areas of consistency (i.e., I/O addresses 64 to 127 and 128 to
191). Overlapping of these areas in a DP slave causes data inconsistency and
must thus be avoided.
IM 308-C
Data consistency for the IM 308-C is enabled on by read or write accessing
an enable byte. As long as data consistency is on, the DP slaves are not
poled and the data cannot be changed during the access procedure. Data con-
sistency is disabled again by read or write accessing a disable byte.
Which byte is the enable byte and which is the disable byte depends on the
CPU used. For more information see the manual of the ET 200.
Data consistency
SIMATIC S5
6-8 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
6.5 Types of Addressing of the IM 308-C
The IM 308-C can be operated in the operating modes “linear addressing”
and “page frame addressing.”
Linear addressing can be used in the P and Q area of the CPU. Linear ad-
dressing has the advantage of not having to first select an appropriate page
frame before SIWAREX U modules can be accessed.
If possible, use linear addressing.
When page frame addressing is used, 16 page frames with page frame num-
bers n to (n+15) are set up on each IM 308-C. The first page frame number
(i.e., n) is used as the number of the IM 308-C. The number of the IM 308-C
is a multiple of 16. It is entered with COM PROFIBUS under the master
parameters.
Using a maximum configuration, 256 page frames can be set up distributed
over 8 IM 308-C modules.
Before the I/O area is called for a SIWAREX U, the appropriate page frame
must be entered in the address area of the CPU. The number of the desired
channel is written in the page frame selection address (PY 255 for P-page
frame addressing and QB 255 for Q-page frame addressing).
Note
Remember that after the page frame is selected via the page frame selection
address, it is very important to ensure that communication via the I/O area
cannot be interrupted by a time OB or an interrupt OB since this would
change the page frame in the OB which was called.
There are two ways to prevent such a conflict.
1. Calls of time OBs, interrupt OBs and similar are disabled until a page
frame is selected via the page frame selection address. The page frame is
then selected and communication with the SIWAREX U takes place. Af-
ter communication is concluded, the time and interrupt OBs are enabled
again.
2. If, for example, a time OB is called while the I/O area of the
SIWAREX U is being processed, the page frame selection must be saved
in a flag byte. All page frames can now be selected in the time OB. The
“old” page frame must be reset before the time OB is exited so that the
user program can continue processing under the same page frame number.
If none of these measures are taken, the wrong SIWAREX U module may be
accessed.
For further information, see the appropriate documentation of the IM 308-C.
Linear addressing
Page frame
addressing
SIMATIC S5
6-9
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
6.6 Types of Addressing of the S5-95U
Only linear addressing can be used for the S5-95U/DP master.
SIMATIC S5
6-10 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
6.7 Principle of Communication
The basic parameters DR0 and DR1 are permanently stored in a type or GSD
file (ET 200M) and are transferred to the SIWAREX U each time the SIMA-
TIC S5 CPU starts up.
The following parameters can be assigned via COM PROFIBUS.
SProcess interrupts: On/off
SDiagnostic alarms: On/off
Because of an entry in DR0, the SIWAREX U switches the interface to S5
mode. In S5 mode, the SIWAREX U can be addressed via the I/O area.
User-related parameters can be modified by transferring data records DR57
to DR79 (byte or word accesses in the I/O area). The type or GSD file of the
SIWAREX U only permits byte accesses.
Any handling or data errors (synchronous errors) are reported to the user, and
the error information is made available.
Data records 3 to 40 cannot be transferred via the I/O area.
The SIWAREX U can be decentrally linked to the SIMATIC S5 via the
PROFIBUS interface modules IM 308-C (SIMATIC S5) and IM 153-1 or
IM 153-2 (ET 200M). Data are transferred in 2-byte data records. A special
function block for communication with the SIWAREX U is not required.
The one-channel and the two-channel SIWAREX U modules each occupy
16 bytes in the input area and 16 bytes in the output area.
Basic parameters
DR0 and DR1
User-related
parameters
Interface to the SI-
MATIC S5
SIMATIC S5
6-11
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
6.8 Allocation of the Input/Output Area
Table 6-5 Input/output of the SIWAREX U
Weigh -
ing
Chan-
nel
Byte S5 Output Area 2) S5 Input Area2)
0Read read-identifier (n) for DR (n) and DR (n+1) Read read-identifier acknowledgment n for
DR (n) and DR (n+1)
1Write write-identifier m for DR (m) Status byte
2Not yet used Weight (H) (is updated cyclically)
13Job control Weight (L) (is updated cyclically)
4Value input (H) in acc. w. identifier m Value output (H) in acc. w. identifier n
5Value input (L) in acc. w. identifier m Value output (L) in acc. w. identifier n
6Specified value 1 (H) (is transferred cyclically) Value output (H) in acc. w. identifier n+1
7Specified value 1 (L) (is transferred cyclically) Value output (L) in acc. w. identifier n+1
8 1) Read read-identifier (n) for DR (n) and DR (n+1) Read read-identifier acknowledgment n for
DR (n) and DR (n+1)
9 1) Write write-identifier m for DR (m) Status byte
10 1) Not yet used Weight (H) (is updated cyclically)
2 1) 11 1) Job control Weight (L) (is updated cyclically)
12 1) Value input (H) in acc. w. identifier m Value output (H) in acc. w. identifier n
13 1) Value input (L) in acc. w. identifier m Value output (L) in acc. w. identifier n
14 1) Specified value 2 (H) (is transferred cyclically) Value output (H) in acc. w. identifier n+1
15 1) Specified value 2 (L) (is transferred cyclically) Value output (L) in acc. w. identifier n+1
1) Only used by two-channel SIWAREX U (same meaning as bytes 0 to 7)
2) Corresponds to the P or Q area of the SIMATIC S5
SIWAREX U starting at address 128 (P area)
Commands to read the status byte:
L PY 129
T MB 200
Table 6-6 Job control (output byte 3)
Bit No. Designation Bit = 0 Bit = 1
0-5 Reserved
6Life bit Can be specified by the user as desired. Is imaged by the SIWAREX U in the sta-
tus bits.
7Job bit Must be checked by the user for equality with job acknowledgment bit. See status.
Must be inverted by the user to trigger a new job (data transfer, command)
Example
SIMATIC S5
6-12 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 6-7 Status byte (input byte 1)
Bit No. Designation Bit = 0 Bit = 1
0Group error
(asynchr. error)
No int./ext. error exists. Int./ext. error exists.
1Synchr. error No error occurred during last write ac-
cess.
Error occurred during last write access.
2Limit value 1 Limit value 1 not active Limit value 1 active
3Limit value 2 Limit value 2 not active Limit value 2 active
4Scales adjusted Scales not adjusted Scales adjusted
5Measured value up-
date bit
Is inverted each time the SIWAREX U updates its measured value
(starting with release status 5)
6Life bit
acknowledgment
Is set or cleared based on the life bit
7Job acknowledgment
bit
Is set or cleared based on the job bit after the job has been executed
SIMATIC S5
6-13
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
6.9 Description of Data Transmission
The addresses are specified relative to the base address of the SIWAREX U
module. The addresses for weighing channel 1, are given below.
The life bit can be used to determine whether the module is still “alive.” The
life bit must be evaluated for this purpose in status (I1.6). When the status of
the life bit in status (I1.6) is equal to that in the job control (Q3.6), the SIWA-
REX U is still “alive.”
The life bit must then be inverted in job control. The SIWAREX U resets
status to the same status for the life bit.
When this does not happen within a certain period of time, a module or com-
munication failure has occurred. The time starting at which a module is de-
clared as failed can be specified via the user program.
The measured value update bit is inverted on the SIWAREX U module each
time the weight value is updated. See also section 3.3.
The weight value (IW2) and the status byte (IB1) are all cyclically updated
by the SIWAREX U every 20 msec (every 100 msec up to release status 4).
The specified value for the remote displays can be specified via QW6. It is
cyclically read by the SIWAREX U and output to the remote displays.
When the life bit determines that the SIWAREX U is “alive,” the measured
value, status and specified value have also been updated.
Note
Since synchronous errors cannot be triggered by the specified value, infor-
mation provided by QW6 has no effect on the error status (synchronous er-
rors).
If other data records are required in the SIMATIC S5 in addition to the mea-
sured value and the status, these can be read via the value output area (IW4,
IW6).
Only the data records selected are read in the 4-byte value output area.
Read-identifier n (QB0) is used to determine which data records are to be
read from the SIWAREX U. Data record n and the next data record (n+1) are
read and entered in the value output area.
Addresses
Life bit
Measured value
update bit
(starting with re-
lease status 5)
Measured value,
status and
specified value
Read data records
SIMATIC S5
6-14 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
The read-identifier acknowledgment (IB0) is now used to check to determine
whether the SIWAREX U has already made the requested data records avail-
able in the value output area. Depending on the cycle time of the program-
mable controller, it may require several CPU cycles before the requested data
records are available.
If read-identifier and read-identifier acknowledgment are equal and the life
bit has determined that the module is “alive,” the requested actual data re-
cords are now available in the value output area.
When a command or a data transmission is executed before reading a data
record and the data record to be read is changed by this, the read access may
only be performed when the job bit and the job acknowledgment bit are equal
(i.e., no write job is running).
Example:
The “Adjust” command affects data record DR61 (i.e., adjustment digits).
When other data records are to be written to the SIWAREX U in addition to
the specified value, this can be implemented via the value input area (QW4).
The data to be written must be entered by the user program in the 2-byte
value input area. Write identifier m (QB1) is used to specify which data
record is to be written to the SIWAREX U.
The job acknowledgment bit (I1.7) in status must now be used to check
whether the SIWAREX U has read the data record. Depending on the cycle
time of the programmable controller, it may require several CPU cycles be-
fore the SIWAREX U has accepted the data record.
The job acknowledgment bit (I1.7) in status signals whether a job has been
concluded. When a job has been concluded, status can be used to determine
whether an error occurred while the data record was being transferred or a
command was being triggered.
For a detailed description of the data records, see section 9.
Writing data
records
Data record
description
SIMATIC S5
6-15
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
The job bit is only required for writing data records. Proceed as follows:
SScan the job acknowledgment bit in status (I1.7) until it is identical to the
job bit (Q3.7) in job control.
SPlace desired data record m in the output area of the S5, and invert the job
bit in job control.
SScan the job acknowledgment bit in status until it is identical to the job
bit in job control.
SWhen the job bit and the job acknowledgment bit are equal, the job has
been concluded.
When no further data records are to be written, the write identifier
must be set to 0. See note below.
SError scan: The status byte in the input area must be scanned.
SWhen a synchronous error has occurred, data record 76 (synchronous
errors) can be requested for detailed information.
Note
To prevent undesired triggering of scales commands (e.g., during a restart of
the CPU), we recommend setting the write identifier to 0 particularly after
writing scales commands, if no further data records are to be written).
Write data records
A write request is only accepted by the SIWAREX U when the job bit differs
from the job acknowledgment bit. When a job has been accepted, other jobs
are not accepted until the SIWAREX U has made the two job bits equal again
(i.e., the data transfer is concluded).
This mechanism prevents write-accesses from being performed continuously
(i.e., cyclically). It is mandatory that the job bit be inverted when a data re-
cord is written again to the SIWAREX U.
Update data records
When data records are read from the SIWAREX U, these records are updated
every 20 msec in accordance with the measuring cycle if the identifier re-
mains the same. Up to release status 4: every 100 msec.
When different data records are requested (e.g., DR66 -> DR68 -> DR70 ->
...), the data records are read from the SIWAREX U as quickly as the proces-
sor load permits. This has the advantage of being able to read out the para-
meterization of the SIWAREX U very quickly.
The parameters themselves are only updated every 20 msec on the
SIWAREX U. Up to release status 4: every 100 msec.
Job acknow-
ledgment bit
Special features
SIMATIC S5
6-16 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
6.10 Sample Program
Using a decentral link with PROFIBUS-DP, the SIWAREX U module can
also be used with the SIMATIC S5. The connection is provided by the
IM 308-C in the central controller of the SIMATIC S5 and an ET 200M dis-
tributed I/O device with the IM 153-1 or IM 153-2 interface module. The
example here describes linking the SIWAREX U module to a user program.
The sample program is included with the configuration package.
The table below shows the CPUs which can be used and the address areas
which can be addressed by the FB10.
Table 6-8 Sample program DEMO
CPU Type P Area Q Area
CPU 941 PY128 to PY240 Not possible with FB 10
CPU 942 PY128 to PY240 Not possible with FB 10
CPU 943 PY128 to PY240 Not possible with FB 10
CPU 944 PY128 to PY240 Not possible with FB 10
CPU 945 PY128 to PY240 QB0 to QB240
CPU 922 PY128 to PY240 QB0 to QB240
CPU 928 PY128 to PY240 QB0 to QB240
CPU 946/947 PY128 to PY240 QB0 to QB240
CPU 948 PY128 to PY240 QB0 to QB240
The I/O area is always accessed by byte. See also parameter assignment of
the ET 200.
The IM 308-C interface module is parameterized with the COM PROFIBUS
software. With newer COM PROFIBUS versions, you should be able to find
the SIWAREX U module within the ET 200M (IM 153-1 interface) under its
order number 7MH4 601-1*A01.
If you are unable to find the SIWAREX U, copy the type or GSD files contai-
ned in the SIWAREX configuration package to the appropriate directory of
COM PROFIBUS. Which files must be copied depends on the particular
version of COM PROFIBUS which you are using.
SCOM PROFIBUS (version v 3.2): Copy the type files to the directory
“TYPDAT5X”.
SCOM PROFIBUS (version w 3.3): Copy the GSD files to the directory
“GSD”.
The following files are supplied for the sample program.
Description
DEMO
Parameter
assignment of the
IM 308-C
SIMATIC S5
6-17
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
SIW115DP.ET2 S5-115U / CPU 943B / P area
(2 SIWAREX U + 2 digital inputs)
SIW135P.ET2 S5-135U / CPU 928B / P area
(2 SIWAREX U + 2 digital inputs)
SIW135Q.ET2 S5-135U / CPU 928B / Q area
(2 SIWAREX U + 2 digital inputs)
The host parameters must be adjusted accordingly when other S5 CPUs are
used.
A similar screen appears after COM PROFIBUS has been called, “File/Open/
SIW115DP.ET2” has been entered, and the text “Master 1” has been double-
clicked.
Figure 6-2 Parameter assignment with COM PROFIBUS
Using COM PROFIBUS, two SIWAREX U modules have been parameteri-
zed with start I/O addresses P128 and P144 for the inputs and outputs. This
occupies the address area P128 to P159. The address area for inputs and out-
puts must be identical.
In addition, 2 digital input SM321 modules have been parameterized with
start I/O addresses P000 and P002.
Using “File/Export/Memory Card,” the configuration is loaded to the flash
EPROM module of the IM 308-C.
Parameter
assignment of the
IM 308-C
SIMATIC S5
6-18 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Note
When the S5-95U/DP is being used, the parameter assignment is loaded to
the 32-Kbyte EEPROM memory module.
The SIWAREX U must be connected as described in section 2. We recom-
mend using SIWATOOL to perform commissioning (e.g., adjustment, para-
meterization, and so on). You can start linking the SIWAREX U as soon as
the measured values are indicated correctly by SIWATOOL.
After an overall reset of the CPU (i.e., operating mode STOP), transfer the
complete example to user memory. With the power off, install the flash
EPROM which was loaded via COM PROFIBUS in the memory slot of the
IM 308-C.
Turn on the power again, and turn the operating mode switch from STOP to
RUN. The interfaces indicate the RUN state (i.e., permanent light). Shortly
afterwards, the CPU also assumes RUN status.
Using FB10, a single data record or all data records can be read or written.
The data which were read are stored in a scales DB. The data which were
written are fetched from there and written to the SIWAREX U.
When called, FB10 must be supplied with the following parameters.
Table 6-9 Call interface
Parameter Format Meaning Value Range
WADB B No. of the scales DB Depends on CPU, permissi-
ble DB numbers
WADR KY Address area and base
address of the scales
KY 0,128 to KY0,240;
0 = P area
KY1,0 to KY1,240;
1 = Q area
NRCH KF Number of channels of the
SIWAREX U
1 or 2
LIFE KF Counting value for LIFE
monitoring
1 to 32767 CPU cycles
Parameter
assignment of the
SIWAREX U
Installation
Function of the
sample program
(FB10)
Call interface
SIMATIC S5
6-19
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
SEGMENT 2
In segment 2 the parameters WADR and NRCH are checked for compliance
with permissible limits and, if errors are detected, an error identifier is ent-
ered in DW19 of the scales DB. When parameter errors occur, the FB is ex-
ited, and communication is not possible.
SEGMENT 3
The 16-byte I/O inputs are read and stored in the I/O area of the scales DB
(i.e., DW0 to DW7).
SEGMENT 4
In segment 4 the life bit is processed for channel 1. If the SIWAREX U does
not return the life bit correctly within the number of CPU cycles specified by
the “LIFE” parameter, the error identifier KH1001 is entered in DW19 of the
scales DB.
SEGMENT 5
Segment 5 handles the read data record jobs for channel 1. The user enters
the DR no. to be read in DW44. If a communication error is queued, the read
access is not performed and DW44 is cleared. Permissible DR numbers for
read accesses: DR58 to DR78. When DR255 is specified as the identifier,
all data records will be read.
If no communication errors are queued and the contents of DW44 have been
set to 0, this ensures that the specified DR(s) has/have actually been read. A
timeout is not required since this function has already been included in LIFE
monitoring.
SEGMENT 6
Segment 6 handles the write jobs for channel 1. The user enters the DR no.
to be written in DW46. If a communication error is queued, the write access
is not executed and DW46 is cleared. Permissible DR numbers for write ac-
cesses: DR57 to DR72. If DR255 is specified as the identifier, all data re-
cords are written. When the identifier is “write all DR,” DR57 (scales com-
mands) is not written since this DR must always be transferred as a single
write job. This prevents a command from being mistakenly issued for this
channel. If no communication errors are queued and the contents of DW46
have been set to 0, all DRs have arrived at the scales. Using DW49 of the
scales DB, the user can check to determine whether certain DRs have been
rejected with a synchronous error message. The structure of DW49 is shown
below.
Table 6-10 Structure of DW49
DW49
Bit No.
Meaning for Value of 0 Meaning for Value of 1
0No error detected in DR58. Error detected in DR58.
1No error detected in DR59. Error detected in DR59.
2No error detected in DR60. Error detected in DR60.
3No error detected in DR61. Error detected in DR61.
4No error detected in DR62. Error detected in DR62.
5No error detected in DR63. Error detected in DR63.
6No error detected in DR64. Error detected in DR64.
Short description
of FB10
SIMATIC S5
6-20 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 6-10 Structure of DW49
DW49
Bit No.
Meaning for Value of 1Meaning for Value of 0
7No error detected in DR65. Error detected in DR65.
8No error detected in DR66. Error detected in DR66.
9No error detected in DR67. Error detected in DR67.
10 No error detected in DR68. Error detected in DR68.
11 No error detected in DR69. Error detected in DR69.
12 No error detected in DR70. Error detected in DR70.
13 No error detected in DR71. Error detected in DR71.
14 No error detected in DR72. Error detected in DR72.
15 Not used Not used
Remarks
DW49 is only updated when all DRs are transferred. During writing single
DRs, the user can recognize any errors directly in the status byte.
A timeout is not necessary since this function is already included in LIFE
monitoring.
SEGMENT 7 to 9
Same as segments 4 to 6, except applicable to channel 2 (see DB structure)
SEGMENT 10
The I/O output area in DB (DW10 to DW17) is written to the output address.
Table 6-11 Structure of the scales DB
DW No. Meaning
0Channel 1: IB0 image, IB1 image
1Channel 1: IB2 image, IB3 image
2Channel 1: IB4 image, IB5 image
3Channel 1: IB6 image, IB7 image
4Channel 2: IB0 image, IB1 image
5Channel 2: IB2 image, IB3 image
6Channel 2: IB4 image, IB5 image
7Channel 2: IB6 image, IB7 image
8 Reserved
9 Reserved
10 Channel 1: QB0 image, QB1 image
11 Channel 1: QB2 image, QB3 image
12 Channel 1: QB4 image, QB5 image
13 Channel 1: QB6 image, QB7 image
14 Channel 2: QB0 image, QB1 image
Structure of the
scales DB
SIMATIC S5
6-21
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 6-11 Structure of the scales DB
DW No. Meaning
15 Channel 2: QB2 image, QB3 image
16 Channel 2: QB4 image, QB5 image
17 Channel 2: QB6 image, QB7 image
18
19 Error indications for parameter assignment errors and communication mal-
functions
KH 0201: Error in WADR para. (area identifier not 0 or 1)
KH 0301: Error in NRCH para. (number of channels not permitted)
KH 1001: Comm. malfunction for chan. 1 (life counter has expired.)
KH 2001: Comm. malfunction for chan. 2 (life counter has expired.)
KH 3001: Communication malfunction channel 1+ 2
(life counter has expired.)
20 Reserved
21 Channel 1: DR57 = commands
22 Channel 1: DR58 = module number
23 Channel 1: DR59 = interface parameter
24 Channel 1: DR60 = adjustment digit 0
25 Channel 1: DR61 = adjustment digit 1
26 Channel 1: DR62 = adjustment weight
27 Channel 1: DR63 = LED allocation
28 Channel 1: DR64 = zero setting value
29 Channel 1: DR65 = LC char. values, filter, decimal point, setting data
30 Channel 1: DR66 = limit value 1 ON
31 Channel 1: DR67 = limit value 1 OFF
32 Channel 1: DR68 = limit value 2 ON
33 Channel 1: DR69 = limit value 2 OFF
34 Channel 1: DR70 = specified value 1, remote display
35 Channel 1: DR71 = specified value 2, remote display
36 Channel 1: DR72 = type of remote display
37 Channel 1: DR73 = current digit value
38 Channel 1: DR74 = gross weight
39 Channel 1: DR75 = asynchronous error word
40 Channel 1: DR76 = synchronous error word
41 Channel 1: DR77 = version
42 Channel 1: DR78 = checksum
43 Channel 1: DR79 = reserved
44 Channel 1: User entry, “DR to be read”
45 Channel 1: Auxiliary word for read DR
46 Channel 1: User entry, “DR to be written”
47 Channel 1: Auxiliary word for write DR
48 Channel 1: Counter for LIFE monitoring
SIMATIC S5
6-22 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 6-11 Structure of the scales DB
DW No. Meaning
49 Channel 1: Status word for writing all DRs
50 Reserved
51 Channel 2: DR57 = commands
52 Channel 2: DR58 = scales number
53 Channel 2: DR59 = interface parameter
54 Channel 2: DR60 = adjustment digit 0
55 Channel 2: DR61 = adjustment digit 1
56 Channel 2: DR62 = adjustment weight
57 Channel 2: DR63 = LED allocation
58 Channel 2: DR64 = zero setting value
59 Channel 2: DR65 = LC char. values, filter, decimal point, setting data
60 Channel 2: DR66 = limit value 1 ON
61 Channel 2: DR67 = limit value 1 OFF
62 Channel 2: DR68 = limit value 2 ON
63 Channel 2: DR69 = limit value 2 OFF
64 Channel 2: DR70 = specified value 1, remote display
65 Channel 2: DR71 = specified value 2, remote display
66 Channel 2: DR72 = type of remote display
67 Channel 2: DR73 = current digit value
68 Channel 2: DR74 = gross weight
69 Channel 2: DR75 = asynchronous error word
70 Channel 2: DR76 = synchronous error word
71 Channel 2: DR77 = version
72 Channel 2: DR78 = checksum
73 Channel 2: DR79 = reserved
74 Channel 2: User entry, “DR to be read”
75 Channel 2: Auxiliary word for read DR
76 Channel 2: User entry, “DR to be written”
77 Channel 2: Auxiliary word for write DR
78 Channel 2: Counter for LIFE monitoring
79 Channel 2: Status word for writing all DRs
80 Not used
SIMATIC S5
6-23
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
The following data words (DW) are available to the user for handling the
communication functions.
Table 6-12 User DB interface
DW Meaning
DR0 Status byte of channel 1
DR4 Status byte of channel 2
DW19 Error indications for WADR and NRCH parameters and indication of com-
munication errors
DW44 Channel 1: Specification of the DR to be read (58 to 78, or 255 for all DRs)
DW46 Channel 1:
Specification of the DR to be written (57 to 72, or 255 for all DRs)
DW49 Channel 1: Indication of write errors for DW46 = 255
DW74 Channel 2: Specification of the DR to be read (58 to 78, or 255 for all DRs)
DW76 Channel 2:
Specification of the DR to be written (57 to 72, or 255 for all DRs)
DW79 Channel 2: Indication of write errors for DW76 = 255
When no communication errors are queued (i.e., DW19 = 0), the user enters
the number of the DR to be written in DW46. After x CPU cycles DW46 is
set to 0 by FB10 and the write access is concluded. If no synchronous errors
are indicated in DR0, the write access was performed correctly. If, however,
a synchronous error is queued, the contents of the DR which was written
must be checked for plausibility.
If all DRs are to be written, DW46 must be preset to 255. When FB10 has
set DW46 to 0 again, a check can be performed in DW49 to determine
whether one of the written DRs contained an error. DW49 = 0 indicates that
no errors occurred and all DRs were transferred correctly to the scales.
When no communication errors are queued (i.e., DW19 = 0), the user enters
the number of the DR to be read in DW44. After x CPU cycles, DW44 is set
to 0 by FB10. This concludes the read access. When a communication error
occurs during the read access, the read access is canceled and DW44 is clea-
red. DW19 contains the error message KH 1001.
The sample program contains commentary and is self-explanatory.
The programming example is located under the sub-directory DEMO on the
floppy disk 3/3.
User DB interface
Write access,
channel 1
Read access,
channel 1
STEP 5 program
SIMATIC S5
6-24 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
6.11 Diagnostic Capabilities with Link to SIMATIC S5
The occurrence of a synchronous error is reported in the input area (bit 1 of
the status byte). Data record 76 contains additional information on the error.
The occurrence of an asynchronous error is reported in the input area (bit 0
of the status byte). Data record 75 contains additional information on the
error.
6.11.1 Diagnostic Capabilities with the IM 308-C
The standard FB for the IM 308-C (FB192) must be linked to cyclic program
processing so that a diagnostic alarm can be triggered on the SIMATIC S5.
FB192 is included with COM PROFIBUS.
Note
If FB192 is not required for other modules on the ET 200M interface, we
strongly recommend not using diagnostic alarms to perform error evaluation
for the SIWAREX U. Since FB192 has to be linked to the cyclic program,
this increases run time. The SIWAREX U reliably reports internal and exter-
nal errors via the I/O area so that FB192 can be omitted.
Table 6-13 Call FB192
SPA FB 192
NAME: IM308C
DPAD: KH F800 ;IM 308-C address = F800h
IMST: KY 0,3 ;No. of the IM 308-C = 0, no. of the IM 153-1 = 3
FCT: KC SD ;SD = Read slave diagnosis
GCGR: KM 00000000 00000000 ;Irrelevant for slave diagnosis
TYP: KY 0,10 ;Data are located in DB10
STAD: KF +0 ;Data are located in DB starting at DW0
LENG: KF 29 ;Length of diagnostic data in bytes
ERR: MW 20 ;Error message
A M21.7 ;If group error set,
JU = ERRO ;then error evaluation
Synchronous
errors
Asynchronous
errors
SIMATIC S5
6-25
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
The slave diagnosis provides the user with up to 29 bytes of diagnostic infor-
mation (i.e., bytes 0 to 28). A data block of 15 data words (i.e., 30 bytes)
must be set up for the diagnostic data.
Since the SIWAREX U is a SIMATIC S7-300 module, the diagnostic infor-
mation provided by the SIWAREX U is presented in accordance with
SIMATIC S7 conventions.
For additional information, see the manuals of COM PROFIBUS and the
modular ET 200M I/O device.
Table 6-14 Contents and layout of the diagnostic data
Byte Explanation
0Station status 1
1Station status 2
2Station status 3
3Master station number
4Manufacturer’s identifier (high byte)
5Manufacturer’s identifier (low byte)
6-8 Identifier-related diagnosis:
The identifier-related diagnosis specifies which module in which slot is faulty.
6Bit 7-6=01
Bit 5-0=000011
Code for identifier-related diagnosis
Length of the identifier-related diagnosis incl. byte 6 (=3)
7Bit 7:
Bit 6:
Bit 5:
Bit 4:
Bit 3:
Bit 2:
Bit 1:
Bit 0:
Module in slot 8 is faulty.
Module in slot 7 is faulty.
Module in slot 6 is faulty.
Module in slot 5 is faulty.
Module in slot 4 is faulty.
Reserved
Module in slot 2 is faulty (i.e., IM 153-1)
Reserved
8Bit 7-3:
Bit 2:
Bit 1:
Bit 0:
Reserved
Module in slot 11 is faulty.
Module in slot 10 is faulty.
Module in slot 9 is faulty.
9-28 Device-related diagnosis:
The device-related diagnosis provides detailed information on the DP slave.
Data record 1 (typical for SIMATIC S7) is stored in the device-related diagnosis. The data records and
diagnostic data are described for the SIMATIC S7/M7 in the STEP 7 manual in the section on standard
and system functions. The contents of the device-related diagnosis depend on which module of the
ET 200 M has reported a diagnosis.
9Bit 7-6=00
Bit 5-0=??????
Code for device-related diagnosis
Length of the device-related diagnosis incl. byte 9:
SFor diagnostic alarms: Max. of 20 bytes
SFor process interrupts: Max. of 8 bytes
10 01 hex: Code for S7 diagnosis
02 hex: Code for S7 process interrupt
SIMATIC S5
6-26 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 6-14 Contents and layout of the diagnostic data
Byte Explanation
11 S7 diagnosis:
Slot of the module with diagnosis
(2, 4 to 11)
S7 process interrupt:
Slot of the module with process interrupt
(4 to 11)
12 Reserved Reserved
Table 6-15 Contents and layout of the process interrupt data
Byte Explanation
13 Bit 7:
Bit 6:
Bit 5:
Bit 4:
Bit 3:
Bit 2:
Bit 1:
Bit 0:
Limit value 2, departing, channel 2
Limit value 2, arriving, channel 2
Limit value 1, departing, channel 2
Limit value 1, arriving, channel 2
Limit value 2, departing, channel 1
Limit value 2, arriving, channel 1
Limit value 1, departing, channel 1
Limit value 1, arriving, channel 1
14-16 Not used currently for SIWAREX U
SIMATIC S5
6-27
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 6-16 Contents and layout of the diagnostic alarm data (contents of data record DR1)
Byte Bit Meaning Remarks
13 0 Module error
1Internal error
2External error
3Channel error exists
4External auxiliary voltage missing
5Not used, always 0
6Parameterization missing
7Wrong parameters on the module (EEPROM error here)
14 0
to
3
Module class 0101 = Analog module
0000 = CPU
1000 = Function module = SIWAREX U
1100 = CP
1111 = Digital module
4Channel information exists
5User information exists
6Not used, always 0
7Not used, always 0
15 0 Not used, always 0
1Not used, always 0
2Not used, always 0
3Watchdog error
4Not used, always 0
5Not used, always 0
6Not used, always 0
7Not used, always 0
16 0 Not used, always 0
1Not used, always 0
2EPROM error
3RAM error
4ADC error (ADC error during read-access)
5Not used, always 0
6Process interrupt lost
7Not used, always 0
17 0
to
6
Channel type 0x50
7(Additional channel type present) -
18 0
to
7
Number of diagnostic bits per channel All bits are used.
SIMATIC S5
6-28 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 6-16 Contents and layout of the diagnostic alarm data (contents of data record DR1)
Byte RemarksMeaningBit
19 0
to
7
Number of channels (Here 1 or 2)
20 0 Channel error, channel 0
(SIWAREX U: Weighing channel 1)
Channel-related errors, see byte 9/10
1Channel error, channel 1
(SIWAREX U: Weighing channel 2)
2
3
4
5
6
7
21/22 0 0 Byte 9 = channel 1
1 0 Byte 10 = channel 2
2 0
3 0
4Min. voltage underranged on sense lines
5 0
6Number overflow for gross weight
7Measuring area exceeded
23-28 Not used (default 0)
6.11.2 Diagnostic Capabilities with the S5-95U/DP Master
The standard FB (i.e., FB230) must be linked to cyclic program processing so
that a diagnostic alarm can be triggered on the SIMATIC S5-95U/DP master.
Each bit of diagnostic word IW56 is allocated to a DP slave. A “1” means
that the DP slave has reported a diagnosis or that the DP slave cannot be ad-
dressed by the master.
Lowest station number: I56.0 = Station 0
Highest station number: I57.7 = Station 15
Overview
diagnostics
SIMATIC S5
6-29
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Scan IW56 in the STEP 5 user program, and call FB230. The bits in IW56
are reset when FB230 is called.
Table 6-17 Example
L KM 00000000 00000000
L IW56 ;Load diagnostic word IW56
!=F ;No station with errors?
BEC
JC FB 230 ;If error, then request station diagnosis
NAME: S_DIAG
S_NR: KY 0,0 ;Indirect parameter assignment, station number 0
DBNR: KY 230,0 ;Diagnostic data are stored in DB230 starting with DW0
The slave diagnosis provides the user with up to 34 bytes of diagnostic infor-
mation (i.e., bytes 0 to 33). A 17-data word data block (i.e., 34 bytes) must
be set up for the diagnostic data.
Since the SIWAREX U is a SIMATIC S7-300 module, the diagnostic infor-
mation provided by the SIWAREX U are presented in accordance with the
SIMATIC S7 convention.
For more information see the manuals of COM PROFIBUS and the modular
ET 200M I/O device.
Table 6-18 Contents and structure of the diagnostic data
DW Meaning of DL Meaning of DR
0Number of the slave station for which diagnostic
data are available
Number of subsequent diagnostic bytes
1Station status 1 Station status 2
2Station status 3 Master station number
3 Manufacturer’s identifier
4 to
16
Additional slave-related diagnostic data
(device-related, identifier-related or channel-related diagnostics)
Cf. also diagnostic capabilities of the IM 308-C
Evaluation of over-
view diagnostics
Structure of the
slave diagnosis
SIMATIC S5
6-30 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
SIMATIC S5
7-1
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Standard DP Master
GSD files are required for connection of modular ET 200M I/O devices to
standard DP masters of other manufacturers. GSD files are an easy and con-
venient way to parameterize the standard DP master with the configuration
software.
Note
The latest GSD files can be downloaded from the Internet (SIMATIC custo-
mer support).
The disadvantage of using the GSD files included with the SIWAREX confi-
guration package is that you will not have the latest GSD file and may not be
able to find other new modules, for example.
Connection to
standard master
7
7-2 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Standard DP Master
8-1
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Serial Coupling
A link can be established to other host systems with the RS 232 serial inter-
face. A SIWAREX driver is available for this purpose. By transferring or
fetching (fetch telegrams) data records, the SIWAREX U can be adjusted,
parameterized and controlled.
8.1 Transmission Protocol (SIWAREX Driver)
The SIWAREX U is always the slave when a host system link is established
with the SIWAREX driver.
When the partner (i.e., master) wants to read a data record from the
SIWAREX U, this must be requested beforehand with a fetch telegram
(DR100). The SIWAREX U returns the requested data record in a response
telegram. When the master transfers a data telegram (e.g., DR3), the
SIWAREX U returns an acknowledgment telegram (DR101). The acknowl-
edge telegram can contain positive and negative response messages.
The SIWAREX driver operates at the lowest level with a simple protocol
with two end characters. The telegrams contain additional characters to im-
prove transmission reliability and identification (i.e., BCC and length infor-
mation). These must be evaluated at a higher level (e.g., with PC software).
A module number is stored in every telegram header for identification.
Module numbers from 1 to 16 are permitted. When the module number does
not correspond to the entry in DR5/DR58, the telegram received by the
SIWAREX U is rejected. When the module number and the entry corre-
spond, the sender address of the request telegram is entered as the receiver
address in the response telegram. Every scale can not only be addressed by
its individual module number but also with address 0. The host uses the
default sender address 255.
The data records which are available are listed in section 9.
Introduction
How it works
Data records
available
8
8-2 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
When the character delay time is exceeded on the SIWAREX module, the
interface is reset to its basic state. An error message is not generated. In
addition, the block check character and the length information are verified on
the SIWAREX module. Any errors are reported in the acknowledgment tele-
gram with the identifier 60hex. This information is not checked when the
length byte and the BCC byte in the telegram are zero.
Table 8-1 Telegram layout
1st byte Receiver address
2nd byte Sender address
3rd byte Data record number
4th byte Length in n bytes (user data length + 7)
5th byte User data DRx, first byte
.
n-3rd byte
.
User data DRx, last byte
n-2nd byte BCC (EXOR)
n-1st byte End identifier 1 (DLE) 0x10
nth byte End identifier 2 (ETX) 0x3
When a byte with the code DLE (0x10) occurs within bytes 1 to n-2, this byte
is doubled by the sender (to prevent a chance end identifier within the user
data) but not counted for the length.
The receiver must cancel this doubled byte.
The BCC block check character is generated with bytes 1 up to and including
n-3.
Table 8-2 Interface data
baud rate 9600 bit/sec
Parity bit SEven or odd
SWith or without parity bit
Number of data bits 8
Number of stop bits 1
Character frame 11 bits
Character delay time 220 msec
Mode SIWAREX driver interpretation with 2 end identifiers
Signals TxD, RxD
Special features
Telegram layout
Technical data of
the SIWAREX dri-
ver
Serial Cou
p
lin
g
8-3
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 8-3 RS 232 interface and SIWAREX driver
Function Data Record, Channel 1 (Channel 2) Format Comments
S5 S7
DR
No.
DR
No.
DR
Byte
DR
Bit
Length
(Byte)
Module number
58
5
0
6
BYTE
0 (
*
)
M
o
d
u
l
e
num
b
er
58
5
0
6
BYTE
0 (*)
Interface parameter for
RS 232C and TTY inter-
face
59 5 1 6 BYTE Bit 0 = 0: With parity (*)
Bit 0 = 1: Without parity
f
ace
py
Bit 1 = 0: Even parity (*)
Bit 1 = 1: Odd parity
(*) Factory setting
Serial Cou
p
lin
g
8-4 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Serial Cou
p
lin
g
9-1
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Data Record Description
9.1 Overview of Data Records
The following table gives you an overview of data records which are provi-
ded by the SIWAREX U and are required for communication with a host sy-
stem.
Table 9-1 Overview of the data records
DR No. Function Chan-
l1)
Length
Bt
Interfaces
2)
Hex. Dec. nel1) Bytes SFC/DR I/O RS 232 EEPROM
S7 data
d
ÁÁÁ
ÁÁÁ
0/1
ÁÁÁ
ÁÁÁ
0/1
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Diagnostic data
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
4/16
ÁÁÁ
ÁÁÁ
O
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
records
ÁÁÁ
ÁÁÁ
0/1
ÁÁÁ
ÁÁÁ
0/1
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Basic parameters
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
4/16
ÁÁÁ
ÁÁÁ
I
ÁÁÁ
ÁÁÁ
I
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
3
ÁÁÁ
ÁÁÁ
3
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Adjustment data and
scales parameters
ÁÁÁ
ÁÁÁ
1
ÁÁÁÁ
ÁÁÁÁ
10
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
Yes
ÁÁÁ
Á
Á
Á
ÁÁÁ
4
ÁÁÁ
Á
Á
Á
ÁÁÁ
4
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Adjustment data and
scales parameters
ÁÁÁ
Á
Á
Á
ÁÁÁ
2
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
10
ÁÁÁ
Á
Á
Á
ÁÁÁ
I/O
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
I/O
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
Yes
ÁÁÁ
ÁÁÁ
5
ÁÁÁ
ÁÁÁ
5
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
General parameters
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
6
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
Yes
ÁÁÁ
Á
Á
Á
ÁÁÁ
6
ÁÁÁ
Á
Á
Á
ÁÁÁ
6
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Specified value,
remote display
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
4
ÁÁÁ
Á
Á
Á
ÁÁÁ
I/O
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
I/O
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
B
ÁÁÁ
ÁÁÁ
11
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Commands
ÁÁÁ
ÁÁÁ
1
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
I
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
C
ÁÁÁ
ÁÁÁ
12
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Commands
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
I
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
15
ÁÁÁ
ÁÁÁ
21
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Limit values
ÁÁÁ
ÁÁÁ
1
ÁÁÁÁ
ÁÁÁÁ
8
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
3)
ÁÁÁ
ÁÁÁ
16
ÁÁÁ
ÁÁÁ
22
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Limit values
ÁÁÁ
ÁÁÁ
2
ÁÁÁÁ
ÁÁÁÁ
8
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
3)
ÁÁÁ
ÁÁÁ
1F
ÁÁÁ
ÁÁÁ
31
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Measured values/status/
error
ÁÁÁ
ÁÁÁ
1
ÁÁÁÁ
ÁÁÁÁ
10
ÁÁÁ
ÁÁÁ
O
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
Á
Á
Á
ÁÁÁ
20
ÁÁÁ
Á
Á
Á
ÁÁÁ
32
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Measured values/status/
error
ÁÁÁ
Á
Á
Á
ÁÁÁ
2
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
10
ÁÁÁ
Á
Á
Á
ÁÁÁ
O
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
I
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
28
ÁÁÁ
ÁÁÁ
40
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Version/checksum
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
8
ÁÁÁ
ÁÁÁ
O
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I
ÁÁÁÁ
ÁÁÁÁ
No
1) Explanation:
1: Only channel 1
2: Only channel 2
X: Both channels
-: Not dependent on channel
2) I: Input (from external source to SIWAREX U)
O: Output (from SIWAREX U to external source)
3) Dependent on parameterization bit
Overview of
data records
9
9-2 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 9-1 Overview of the data records
Interfaces
2)
Length
Bytes
Chan-
nel1)
FunctionDR No.
EEPROMRS 232I/OSFC/DR
Length
Bytes
Chan-
nel1)
Function
Dec.Hex.
S5/S7
d
ÁÁÁ
39
ÁÁÁ
57
ÁÁÁÁÁÁÁ
Commands
ÁÁÁ
X
ÁÁÁÁ
2
ÁÁÁ
-
ÁÁÁ
I
ÁÁÁÁ
-
ÁÁÁÁ
No
data re-
cords
ÁÁÁ
ÁÁÁ
3A
ÁÁÁ
ÁÁÁ
58
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Module number
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
Yes
cor
d
s
(
once
p
er
ÁÁÁ
ÁÁÁ
3B
ÁÁÁ
ÁÁÁ
59
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Interface parameters
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
Yes
(once per
channel)
ÁÁÁ
ÁÁÁ
3C
ÁÁÁ
ÁÁÁ
60
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Adjustment digit 0
ÁÁÁ
ÁÁÁ
X
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
Yes
)
ÁÁÁ
ÁÁÁ
3D
ÁÁÁ
ÁÁÁ
61
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Adjustment digit 1
ÁÁÁ
ÁÁÁ
X
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
Yes
ÁÁÁ
ÁÁÁ
3E
ÁÁÁ
ÁÁÁ
62
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Adjustment weight
ÁÁÁ
ÁÁÁ
X
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
Yes
ÁÁÁ
ÁÁÁ
3F
ÁÁÁ
ÁÁÁ
63
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
LED allocation
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
Yes
ÁÁÁ
ÁÁÁ
40
ÁÁÁ
ÁÁÁ
64
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Zero setting value
ÁÁÁ
ÁÁÁ
X
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
Yes
ÁÁÁ
Á
Á
Á
ÁÁÁ
41
ÁÁÁ
Á
Á
Á
ÁÁÁ
65
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Char. value of LC/filter/
setting data
ÁÁÁ
Á
Á
Á
ÁÁÁ
X
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
2
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁ
Á
Á
Á
ÁÁÁ
I/O
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
Yes
ÁÁÁ
ÁÁÁ
42
ÁÁÁ
ÁÁÁ
66
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Limit value 1 on
ÁÁÁ
ÁÁÁ
X
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
3)
ÁÁÁ
ÁÁÁ
43
ÁÁÁ
ÁÁÁ
67
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Limit value 1 off
ÁÁÁ
ÁÁÁ
X
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
3)
ÁÁÁ
44
ÁÁÁ
68
ÁÁÁÁÁÁÁ
Limit value 2 on
ÁÁÁ
X
ÁÁÁÁ
2
ÁÁÁ
-
ÁÁÁ
I/O
ÁÁÁÁ
-
ÁÁÁÁ
3)
ÁÁÁ
ÁÁÁ
45
ÁÁÁ
ÁÁÁ
69
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Limit value 2 off
ÁÁÁ
ÁÁÁ
X
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
3)
ÁÁÁ
Á
Á
Á
ÁÁÁ
46
ÁÁÁ
Á
Á
Á
ÁÁÁ
70
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Specification value 1
for TTY
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
2
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁ
Á
Á
Á
ÁÁÁ
I/O
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
No
ÁÁÁ
Á
Á
Á
ÁÁÁ
47
ÁÁÁ
Á
Á
Á
ÁÁÁ
71
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Specification value 2
for TTY
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
2
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁ
Á
Á
Á
ÁÁÁ
I/O
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
48
ÁÁÁ
ÁÁÁ
72
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Remote display type
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
I/O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
Yes
ÁÁÁ
ÁÁÁ
49
ÁÁÁ
ÁÁÁ
73
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Current digit value
ÁÁÁ
ÁÁÁ
X
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
4A
ÁÁÁ
74
ÁÁÁÁÁÁÁ
Gross
ÁÁÁ
X
ÁÁÁÁ
2
ÁÁÁ
-
ÁÁÁ
O
ÁÁÁÁ
-
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
4B
ÁÁÁ
ÁÁÁ
75
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Asynchronous errors
ÁÁÁ
ÁÁÁ
X
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
4C
ÁÁÁ
ÁÁÁ
76
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Synchronous errors
ÁÁÁ
ÁÁÁ
X
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
4D
ÁÁÁ
ÁÁÁ
77
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Version
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
4E
ÁÁÁ
ÁÁÁ
78
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Checksum
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
ÁÁÁ
ÁÁÁ
4F
ÁÁÁ
ÁÁÁ
79
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Reserved
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
O
ÁÁÁÁ
ÁÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
No
Commu-
nication
ÁÁÁ
ÁÁÁ
64
ÁÁÁ
ÁÁÁ
100
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Fetch telegram
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
1
ÁÁÁ
ÁÁÁ
-
ÁÁÁ
ÁÁÁ
-
ÁÁÁÁ
ÁÁÁÁ
I
ÁÁÁÁ
ÁÁÁÁ
No
n
i
ca
ti
on
tele-
grams
ÁÁÁ
Á
Á
Á
ÁÁÁ
65
ÁÁÁ
Á
Á
Á
ÁÁÁ
101
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Acknowledgment
telegram
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
3
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁ
Á
Á
Á
ÁÁÁ
-
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
O
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
No
1) Explanation:
1: Only channel 1
2: Only channel 2
X: Both channels
-: Not dependent on channel
2) I: Input (from external source to SIWAREX U)
O: Output (from SIWAREX U to external source)
3) Dependent on parameterization bit
!Caution
With channel-independent data records, the data for the first or second chan-
nel can be transferred for a two-channel module. When different values are
transferred simultaneously for both channels, the value for channel 2 over-
writes the value for channel 1.
Data Record Descri
p
tion
9-3
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
9.2 Data Formats
Table 9-2 Data record formats
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
DR byte n+3
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
DR byte n+2
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
DR byte n+1
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
DR byte n+0
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Byte, char
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Á
ÁÁÁÁ
Á
27 20
ÁÁÁÁÁÁ
Á
ÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
Á
Word
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁ
Á
ÁÁÁÁÁÁ
High byte
ÁÁÁÁÁÁ
Á
ÁÁÁÁ
Á
ÁÁÁÁÁÁ
Low byte
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Á
ÁÁÁÁ
Á
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
215
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
27 20
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
dint
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
, time (msec)
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
High word
ÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁ
Low word
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
High byte
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Low byte
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
High byte
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Low byte
231 223 215 27 20
Since the data operands in the data blocks are addressed by byte with STEP 7
and by word with STEP 5, the addresses of the data operands must be recal-
culated accordingly.
891012131415 2356711 4
DL [n] DR[n]
1 0
DW [n]
STEP 5
0124567 2356734
DBB [2n] DBB [2n+1]
1 0
DBW [2n]
STEP 7
Figure 9-1 Comparison of data addressing with STEP 5 and STEP 7
In contrast to STEP 5, the address of a data word is doubled with STEP 7. A
data byte can no longer be divided into a right and a left data byte. Bit num-
bering is always from 0 to 7.
Intel: Low byte: bits 0 to 7; high byte: bits 8 to 15
Motorola: Low byte: bits 8 to 15; high byte: bits 0 to 7
SIWAREX U uses the Intel format.
High and low bytes must be reversed when couplings to Motorola-based sys-
tems are used.
Data formats in S7
Comparison of
S5/S7 formats
Data formats
for Intel/Motorola
Data Record Descri
p
tion
9-4 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
9.3 Description of the Data Records
These basic parameters are transferred to the module by the applicable SI-
MATIC system during startup. They contain settings which determine the
behavior of the module in the SIMATIC system. The basic parameters are
stored in the SIWAREX U in a memory area which is not protected against
power failure.
These parameters can be transferred via the SIMATIC or via the serial inter-
face. The parameters are checked on the module for plausibility and, after a
positive check, stored in a memory area which is protected against power
failure. If a data record contains parameters which are not plausible, the
entire data record is rejected (i.e., the data are not accepted by the
SIWAREX U).
9.3.1 DR0: Basic Parameters (Write)
Table 9-3 DR0: Basic parameters (length: 4)
DR
No.
P
No.
Mode Parameter
(Menu String)
Data
Format
Value Range
(Visible)
Value Range
(Coding)
Factory
Setting
ADR
Byte
ADR
Bit
0 1 BPAR Alarm
generation
BYTE {NO | YES} { 0|1 } 1 0 -
0 2 SPAR Alarm
selection
BYTE {(none) |
diagnosis |
process |
diagnosis+
process )}
{(0) | (1|2|3)} 1 1 -
0 3 Not used by SIWAREX U -
0 4 0 Data interface BYTE {SFC| I/O} { 0 | 1 } 0 4 -
BPAR: Parameter is a basic parameter.
SPAR: Parameter is a sub parameter.
9.3.2 DR1 - Parameter (Write)
Table 9-4 DR1 - Parameter (length: 16)
DR
No.
P
No.
Mode Parameter
(Menu String)
Data
Format
Value Range
(Visible)
Value Range
(Coding)
Factory
Setting
ADR
Byte
ADR
Bit
1 5 In reserve 0
1 6-16 In reserve 0
Basic parameters
DR0 and DR1
User-related
parameters,
starting with DR3
Data Record Descri
p
tion
9-5
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
9.3.3 DR0: Diagnosis, Part 1 (Read)
Table 9-5 Diagnostic data
Byte Bit Meaning Remarks
0 0 Module error
1Internal error
2External error
3Channel error exists
4External auxiliary voltage missing
5Not used, always 0
6Parameterization missing
7Wrong parameters on the module (EEPROM error here)
1 0
to
3
Module class 0101 = Analog module
0000 = CPU
1000 = Function module = SIWAREX U
1100 = CP
1111 = Digital module
4Channel information exists
5User information exists
6Not used, always 0
7Not used, always 0
2 0 Not used, always 0
1Not used, always 0
2Not used, always 0
3Watchdog error
4Not used, always 0
5Not used, always 0
6Not used, always 0
7Not used, always 0
3 0 Not used, always 0
1Not used, always 0
2EPROM error
3RAM error
4ADC error (ADC error during read-access)
5Not used, always 0
6Process interrupt lost
7Not used, always 0
Note
The data of DR0 are also available in the local data of OB82.
Data Record Descri
p
tion
9-6 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
9.3.4 DR1 - Diagnosis, Part 2 (Read)
Table 9-6 Diagnostic data
Byte Bit Meaning Remarks
4 0
to
6
Channel type
7(Other channel type present) -
5 0
to
7
Number of diagnostic bits per channel All bits are used
6 0
to
7
Number of channels (Here 1 or 2)
7 0 Channel error, channel 0
(SIWAREX U: Weighing channel 1)
Channel-related error, see byte 9/10
1Channel error, channel 1
(SIWAREX U: Weighing channel 2)
2
3
4
5
6
7
8, 9 0 0 Byte 9 = channel 1
1 0 Byte 10 = channel 2
2 0
3 0
4Min. voltage underranged on sense lines
5 0
6Number overflow for gross weight
7Measuring area exceeded
10-15 Not used (factory setting 0)
Data Record Descri
p
tion
9-7
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
9.3.5 DR3: Adjustment Data, Channel 1
Table 9-7 DR3: Adjustment data, channel 1 (length: 10 bytes)
Meaning Byte Unit Format Factory
Setting
Explanation
Zero setting value 0, 1 Digits WORD 0
Char. value, LC/filter setting/
setting data
2, 3 -16 x BOOL 0000 0000
0100 0001
Adjustment digit 0 4, 5 Digits WORD 0
Adjustment digit 1 6, 7 Digits WORD 0
Adjustment weight 8, 9 Weight INT 10000 -32768 to +32767
Data Record Descri
p
tion
9-8 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 9-8 Char. value, LC/filter setting/setting data
Bit Meaning
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Characteristic value of the load cell
0 0 ≤ 1 mV/V
0 1 ≤ 2 mV/V (factory setting)
1 0 ≤ 4 mV/V
1 1 In reserve
Decimal point for remote display
000 Decimal point 0 (factory setting)
001 Decimal point 1
010 Decimal point 2
011 Decimal point 3
100 Decimal point 4
101 Decimal point 5
Filter setting
000 Not filtering
001 Limit frequency: 5 Hz
010 Limit frequency: 2 Hz
(factory setting)
011 Limit frequency: 1 Hz
100 Limit frequency: 0.5 Hz
101 Limit frequency: 0.2 Hz
110 Limit frequency: 0.1 Hz
111 Limit frequency: 0.05 Hz
Average value filter
0Average value filter disabled
(factory setting)
1Average value filter enabled
Data to EEPROM
(Only applicable to limit values and
zero setting value via command)
0Store in EEPROM
(factory setting)
1Store only in RAM
Channel in operation
0Channel enabled
1Channel disabled
Data Record Descri
p
tion
9-9
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
9.3.6 DR4: Adjustment Data, Channel 2
Table 9-9 DR4: Adjustment data, channel 2 (for two-channel modules only) (length: 10 bytes)
Meaning Unit Format Factory
Setting
Explanation
- Allocation same as DR3 -
9.3.7 DR5: General Parameters (Regardless of Channel)
Table 9-10 DR5: General parameters (length: 6 bytes)
Meaning Byte Unit Format Factory
Setting
Explanation
Module number 0 BYTE 0
Interface parameters 1 BYTE 0
Type of remote display 2 BYTE 0
Allocation, LED 1 3 BYTE 101 Limit 1, channel 1
Allocation, LED 2 4 BYTE 102 Limit 2, channel 1
In reserve 5 BYTE 0
Table 9-11 TTY/RS 232C interface parameters
(fixed: 8 data bits, 1 stop bit, 9600 baud)
Bit No. Reset Set
0With parity bit (default setting) Without parity bit
1Even parity (default setting) Odd parity
2In reserve
3In reserve
4In reserve
5In reserve
6In reserve
7In reserve
Table 9-12 Type of remote display
Code (Dec.) Meaning
0No remote display
14-position remote display
25-position remote display
36-position remote display
Data Record Descri
p
tion
9-10 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 9-13 Allocation of LED 1 or LED 2
Code
(Hex.)
Code
(Dec.)
Status Channel
64 100 Channel error Channel 1
65 101 Limit value 1 Channel 1
66 102 Limit value 2 Channel 1
67 103 Scales adjusted Channel 1
C8 200 Channel error Channel 2
C9 201 Limit value 1 Channel 2
CA 202 Limit value 2 Channel 2
CB 203 Scales adjusted Channel 2
9.3.8 DR6: Specified Values, Remote Display
Table 9-14 DR6: Specified values, remote display (length: 4 bytes)
Meaning Byte Unit Format Factory
Setting
Explanation
Specified value 1 0, 1 INT 0
Specified value 2 2, 3 INT 0
Data Record Descri
p
tion
9-11
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
9.3.9 DR11: Commands, Channel 1
Table 9-15 DR11: Commands, channel 1 (length: 2 bytes)
Meaning Unit Format Factory
Setting
Explanation
Command word - WORD 0
Table 9-16 Possible entries, command word
Code (Dec.) Meaning
0No command (Synchronous errors are deleted)
1Set as zero
2 Adjust
3Move zero point (set to zero)
4
5Load factory setting
(affects both channels of a two-channel SIWAREX U)
100 100 msec measuring cycle, sevice command, starting with release status
5 (affects both channels of a two-channel SIWAREX U)
Data Record Descri
p
tion
9-12 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
9.3.10 DR12: Commands, Channel 2
Table 9-17 DR12: Commands, channel 2 (for two-channel modules only) (length: 2 bytes)
Meaning Unit Format Factory
Setting
Explanation
- Allocation same as DR11 -
9.3.11 DR21: Limit Values, Channel 1
Table 9-18 DR21: Limit values, channel 1 (length: 8 bytes)
Meaning Byte Unit Format Factory
Setting
Explanation
Limit value 1 ON 0, 1 Weight INT 10000
Limit value 1 OFF 2, 3 Weight INT 9990
Limit value 2 ON 4, 5 Weight INT 1000
Limit value 2 OFF 6, 7 Weight INT 1010
9.3.12 DR22: Limit Values, Channel 2
Table 9-19 DR22: Limit values, channel 2 (for two-channel modules only) (length: 8 bytes)
Meaning Byte Unit Format Factory
Setting
Explanation
Limit value 1 ON 0, 1 Weight INT 10000
Limit value 1 OFF 2, 3 Weight INT 9990
Limit value 2 ON 4, 5 Weight INT 1000
Limit value 2 OFF 6, 7 Weight INT 1010
Data Record Descri
p
tion
9-13
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
9.3.13 DR31: Measured Values/Status/Error, Channel 1
Table 9-20 DR31: Measured values/status/error, channel 1 (length: 10 bytes)
Meaning Byte Unit Format Factory
Setting
Explanation
Gross 0, 1 Weight INT - -32768 to +32767
Status 2 8 x BOOL -
Measured value update counter 3 BYTE - Starting with release
status 5
Current digit value (filtered) 4, 5 Digits WORD - 0 to 65535
Asynchronous error 6, 7 16 x BOOL -
Synchronous error 8, 9 16 x BOOL -
9.3.14 DR32: Measured Values/Status/Error, Channel 2
Table 9-21 DR32: Measured values/status/error, channel 2 (length: 10 bytes)
Meaning Byte Unit Format Factory
Setting
Explanation
Gross 0, 1 Weight INT - -32768 to +32767
Status 2 8 x BOOL -
Measured value update counter 3 BYTE - Starting with release
status 5
Current digit value (filtered) 4, 5 Digits WORD - 0 to 65535
Asynchronous error 6, 7 16 x BOOL -
Synchronous error 8, 9 16 x BOOL -
Contains current status information
Table 9-22 Status byte
Bit
No.
Designation Bit = 0 Bit = 1
0Asynchronous error
(group error)
No internal/external error Internal/external error
1Synchronous error No error occurred during
last write-access
An error occurred during
last write-access
2Limit value 1 Limit value 1 not active Limit value 1 active
3Limit value 2 Limit value 2 not active Limit value 2 active
4Scales adjusted Scales not adjusted Scales adjusted
Status byte
Data Record Descri
p
tion
9-14 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 9-22 Status byte
Bit
No.
Bit = 1Bit = 0Designation
5Measured value update
bit
Is inverted each time the SIWAREX U updates its
measured value (starting with release status 5)
6Life bit Only used for I/O communication
7Job acknowledgment
bit
Only used for I/O communication
SCan happen any time
SAre automatically deleted when error disappears
SSeveral errors can be queued at the same time.
Table 9-23 Asynchronous errors
Bit
No.
Designation Bit = 0 Bit = 1
0Control limit ADC1) Not exceeded Exceeded
1Minimum voltage on sense
line 1)
Not underranged Underranged
2 Watchdog Has not been triggered Has been triggered
3Error in EPROM (program) Does not exist Exists
4Error in EEPROM (data) Does not exist Exists
5RAM error (read/write error) Does not exist Exists
6ADC error during read-
access
Does not exist Exists
7Number overflow for gross
weight 1)
Does not exist Exists
8Ext. supply voltage (24 V) Is available Is not available
9In reserve
10 In reserve
11 In reserve
12 In reserve
13 In reserve
14 In reserve
15 In reserve
1) These errors are only reported for the specific channel. The other errors are entered
for both channels.
Asynchronous
errors
Data Record Descri
p
tion
9-15
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
SCan occur after command input
SAre reported in DR31, 32 and 76 only on the interface which caused the
synchronous error
SAre only output to the interface via which the applicable job arrived
SThis DR is not updated again until a new command is issued or a reset
occurs.
Table 9-24 Synchronous error
Bit
No.
Bit = 0 Bit = 1
0 - Adjustment command could not be executed since distance to ad-
justment points is too small.
1 - Job could not be executed due to malfunction.
2 - A non-existent or inactive channel was addressed.
3 - Code not defined (e.g., limit frequency, digital filter and so on)
4 - Data record/identifier unknown
5 - Command not possible since scales not adjusted
6 - Wait time of 5 sec not adhered to during adjustment commands
7 - The adjustment weight is negative.
8 - In reserve
9 - In reserve
10 - In reserve
11 -In reserve
12 - In reserve
13 - In reserve
14 - In reserve
15 - In reserve
9.3.15 DR40: Version/Checksum/Switches
Table 9-25 DR40: Version/checksum/switches (length: 8 bytes)
Meaning Byte Unit Format Factory
Setting
Explanation
Version 0, 1 WORD - FW version
Checksum 2, 3 WORD - 0 to 65535
In reserve 48 x BOOL -
Module type 5 BYTE 1/2 Depends on number of channels
In reserve 6, 7 INT -
Synchronous
errors
Data Record Descri
p
tion
9-16 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
9.3.16 DR57 to 79: Data Records for I/O Area
Table 9-26 DR57 to 79: Data records for I/O area (S5 data records)
DR
No.
Meaning Unit Format Factory
Setting
Explanation
57 Commands Digit WORD 0
58 Module number Digit CHAR 0
59 Interface parameters Digit BOOL 0
60 Adjustment digits 0 Digit WORD 0
61 Adjustment digits 1 Digit WORD 0
62 Adjustment weight Weight INT 1000
63 LED allocation Code 2 x BYTE 101
102
64 Zero setting value Digit WORD 0
65 Characteristic value, LC/filter setting/
setting data
16 x BOOL 0000 0000
0100 0001
66 Limit value 1 ON Weight INT 10000
67 Limit value 1 OFF Weight INT 9990
68 Limit value 2 ON Weight INT 1000
69 Limit value 2 OFF Weight INT 1010
70 Specified value 1 for remote display - INT 0
71 Specified value 2 for remote display - INT 0
72 Type of remote display - WORD 0 Only low byte used
73 Current digit value Digit WORD - 0 to 65535
74 Gross Weight INT - -32768 to +32767
75 Asynchronous errors -16 x BOOL -
76 Synchronous errors -16 x BOOL -
77 Version - WORD -
78 Checksum - WORD -
79 Reserved - BOOL -
The setup of data records DR57 to DR78 is similar to the setup of data re-
cords DR3 to DR40.
Example:
For DR65, see setup of byte 2–3 of DR3.
Setup of data re-
cords DR57 to 78
Data Record Descri
p
tion
9-17
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
9.3.17 DR100: Fetch Telegram
Table 9-27 DR100: Fetch telegram (length: 1 byte)
Meaning Format Factory Setting
Number of request data record BYTE 0
9.3.18 DR101: Acknowledgment Telegram
Table 9-28 DR101: Acknowledgment telegram (length: 3 bytes)
Meaning Format Factory Setting
No. for acknowledged data record (0 for
error type 60hex)
BYTE 0
Type of error BYTE 0
Error number (See also section 12) BYTE 0
Table 9-29 Error types in the acknowledgment telegram
Code Meaning
00 hex No error
40 hex Synchronous errors (handling or data errors)
60 hex Transmission error
The error number is only valid for the “synchronous error” type of error and
corresponds to the less significant byte of the synchronous error word.
Error number
Data Record Descri
p
tion
9-18 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Data Record Descri
p
tion
10-1
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Optional Components
Optional components are external devices such as remote displays and so on.
The figure below shows how external devices can be connected.
Operator panel
Remote display
PC
PS S7-300
RS 485 TTY
RS 232C
SIWAREX U
MPI bus
CPU
Figure 10-1 Connection of optional components
A remote display can be connected to the TTY interface. A PC can be con-
nected to the RS 232 interface for commissioning purposes, or a host can be
connected.
10
10-2 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
10.1 Connection of Digital Remote Displays
Digital remote displays can be connected to the TTY interface of the
SIWAREX U. The SIWAREX U contains an appropriate protocol for con-
nection of digital remote displays. All digital remote displays which support
this protocol and are equipped with a TTY interface can be connected to the
SIWAREX U. 4-digit, 5-digit and 6-digit remote displays are supported.
Note
It is the user’s responsibility to determine whether the digital remote display
chosen actually supports this protocol. Siemens AG accepts no liability for
damage caused by connection of remote displays.
The documentation of the remote display manufacturer must be adhered to.
Weight
Scale 1
TTY
SIWAREX U
WEIGHING MODULE SF
24V
ST1
ST2
7MH4601-1BA01
2
13
X
Weight
Scale 2
Specified
value 1
Specified
value 2
Figure 10-2 Example: Connection of 4 digital remote displays to the SIWAREX U
The following values can be indicated on a digital remote display:
SGross weight value, weighing channel 1
SGross weight value, weighing channel 2 (for two-channel SIWAREX U
only)
SSpecified value 1 (can be assigned as desired via SIMATIC)
SSpecified value 2 (can be assigned as desired via SIMATIC)
The value to be indicated is set on the remote display.
Introduction
Description
Value output
O
p
tional Com
p
onents
10-3
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Note
Since the specified values are stored in the RAM of the SIWAREX U, the
specified values must be supplied again by the SIMATIC CPU after a power
OFF/ON.
When special operating states occur (e.g., the indication range of the remote
display is exceeded), the SIWAREX U sends appropriate ASCII characters
via the protocol. If the remote display can indicate these ASCII characters,
the special operating state is indicated on the remote display. See also cha-
racter set used for display data, table 5-8.
Table 10-1 Special operating states
Indication Description
“_ _ _ _ _” The indication range of the remote display has been exceeded
(e.g., 11.456 kg cannot be shown on a 4-digit display).
“E r r” The SIWAREX U reports a system error SF
(e.g., EEPROM error).
“_ _ _ _ _”
or
“≡ ≡ ≡ ≡ ≡”
Timeout function for monitoring the serial connection for wire
break. This function must be included in the remote display.
The function is indicated differently depending on the type of
display.
The connection to the remote display is made with the free-floating TTY in-
terface of the SIWAREX U (via 20-way multipoint connection strip). The
interface is unidirectional (i.e., the weight values are transferred cyclically to
the remote display(s)).
Several digital remote displays can be connected to the SIWAREX U.
Example: Connection of two remote displays, remote display 2 active.
TxD+
(Pin 6)
TxD-
(Pin 7)
RXD-
RXD+
RXD-
RXD+
20mA/R
M/R
Display 1
(passive)
Display 2
(active)
SIWAREX U
(passive)
< 1000 m
(e.g.: LIYCY 2x2x0.5mm2)
Figure 10-3 Connection of remote displays
Special operating
states
Connection of the
remote displays
O
p
tional Com
p
onents
10-4 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 10-2 Pin assignment of the TTY interface
Connection Assignment of the TTY Interface
Pin Signal Name
6 TxD2+ Sending data + of SIWAREX U
7 TxD2- Sending data - of SIWAREX U
For pin assignment of the remote display, see the documentation of your re-
mote display.
Note
Pin assignment of the remote displays may differ depending on the manufac-
turer. For example, S+/S- is used for sender power, and TX+/TX-/RX+/RX-
is used for sender or receiver lines. Some remote displays use the 24 V con-
nection instead of 20 mA/R and GND instead of M/R since these types of
remote displays are equipped with constant current control which limits the
current on the TTY interface. For details, see the documentation of your
remote display.
When several remote displays are to be connected to the TTY interface of
the SIWAREX U, we recommend asking the manufacturer of the remote
displays whether the power capacity of the active remote display is suffi-
cient.
4-digit, 5-digit and 6-digit displays can be connected to the
SIWAREX U. Selection of the display to be connected is made in the appro-
priate data record via the SIMATIC or via SIWATOOL.
The number of positions set applies to all remote displays connected to the
TTY interface.
In addition, the specified values can be specified via the SIMATIC.
Table 10-3 Remote display
Function Data Record, Channel 1 (Channel 2) Format Comments
S5 S7
DR
No.
DR
No.
DR
Byte
DR
Bit
Length
(Byte)
Number of posi-
tions of the re-
mote display
72 5 2 6 BYTE Selection code (dec.)
No indication = 0 (*)
4-position indication = 1
5-position indication = 2
6-position indication = 3
Specified value 1
for remote dis-
play
70
QB
6, 7
6 0 6 INT 0 (*)
Assignment
Settings on the
SIWAREX U
O
p
tional Com
p
onents
10-5
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 10-3 Remote display
Function CommentsFormatData Record, Channel 1 (Channel 2)
S7S5
Length
(Byte)
DR
Bit
DR
Byte
DR
No.
DR
No.
Specified value 2
for remote dis-
play
71
QB
14, 15
6 2 6 INT 0 (*)
Interface parame-
ters for RS 232C
and TTY inter-
face
59 5 1 6 BYTE Bit0=0: With parity (*)
Bit0=1: Without parity
Bit1=0: Even parity (*)
Bit1=1: Odd parity
(*) Factory setting
When the type of indication is set via data record 5 or 72 (parameters not
dependent on the channel), the indication data are output on the TTY inter-
face every 100 msec.
Gross, scales 1 Spec. value 1 Gross, scales 2 Spec. value 2
After 100 msec After 100 msec After 100 msec
After 100 msec
When a digital remote display is connected to the SIWAREX U, settings
must be made on the remote display. The number of settings depends on the
remote display used.
For detailed information on the parameterization of remote displays, see the
documentation of the manufacturer of your remote display.
Table 10-4 Settings of the remote display
Meaning Setting
Interface TTY
Data format 8 bit
Parity Even/odd/without
Baud rate 9600 Baud
Protocol STX/ETX
Protocol response None
Ignore characters (See protocol layout) Ignore one character
Address length 2 positions
Output of the
indication data
Settings on the re-
mote display
O
p
tional Com
p
onents
10-6 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 10-4 Settings of the remote display
Meaning Setting
Address Gross value, channel 1 = 01
Specified value 1 = 05
Gross value, channel 2 = 21
Specified value 2 = 06
Timeout Example: timeout after 2 sec
Decimal point No decimal point
Leading zeros Leading zeros are indicated.
Segment test If present on the remote display, segment
test should be enabled.
Depending on the remote display selected, the weight value can be indicated
with 4, 5 or 6 digits. When negative values are involved, the minus sign
takes up one of the positions.
Example of a 5-digit display with 2 positions after the decimal point:
Display range -99.99 to 999.99.
When the number range which can be represented is exceeded, this is shown
by “- - - -”.
The following configurations should be avoided when representing output
values since negative values cannot be represented otherwise.
Table 10-5 Number range which can be indicated on the remote display
Remote Display Type Number of Positions Con-
figured after the Decimal
Point
Example
4-digit remote display 3 positions after the decimal
point
0.123
-0.123 cannot be represented
since 5 positions required.
5-digit remote display 4 positions after the decimal
point
0.1234
-0.1234 cannot be represented
since 6 positions required.
6-digit remote display 5 positions after the decimal
point
0.12345
-0.12345 cannot be represen-
ted since 7 positions required.
Number range
which can be
represented
O
p
tional Com
p
onents
10-7
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Weight values
The position of the decimal point can be specified via SIWATOOL or via the
SIMATIC separately for weight channel 1 and weight channel 2.
The decimal point position is kept static. After a decimal point position has
been parameterized, it is transferred with the protocol. When several remote
displays are used, the decimal point position can be set individually on some
remote displays by not specifying a decimal point position for the
SIWAREX U. The desired decimal point position must then be set directly
on the remote display.
Specified value
The SIWAREX U always transfers the specified values to the remote
display(s) without a decimal point. If you want to have a decimal point indi-
cated, this must be set on the remote display.
An address must be set on each display (e.g., by using the appropriate para-
meterization menu of the display). The address determines the value to be
indicated.
The following settings are possible
Table 10-6 Assignment of the addresses on the remote display
Address
ASCII coded 1)
Remote Display Data
01 Gross value, channel 1
05 Specified value 1
06 Specified value 2
21 Gross value, channel 2
1) Since the address is represented as ASCII characters in the remote display protocol,
address “01” corresponds to the ASCII characters 30h and 31h.
The layout of the protocol will now be described. All digital remote displays
which can be connected electrically to the SIWAREX U and which can be
operated with the described protocol can be used with the SIWAREX U.
Description of the protocol
Data format: 8 bits, 1 stop bit
Baud rate: 9600 Baud
Protocol: STX/ETX without protocol response
Addressing: 2 bytes for addressing the displays
Position of the de-
cimal point
Addressing
Protocol layout
O
p
tional Com
p
onents
10-8 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Table 10-7 Description of the string layout
Byte No. Contents Commentary/Example
4-Digit
Display
5-Digit
Display
6-Digit
Display
HEX
(Ex.)
1 1 1 STX 02 02h
2 2 2 Address 30 2 digits, ASCII-coded
3 3 3 Address 31 (can be parameterized on
display)
4 4 4 Reserved 20 Blank
555 1st digit 35 Weight value channel 1, 2
Specified value 1, 2
666 2nd digit 34
777 Decimal point 2C (*)
888 3rd digit 33
999 4th digit 32
Blank 10 10 5th digit 31
Blank Blank 11 6th digit 30
12 12 12 Reserved 20 Blank
13 13 13 Reserved 20 Blank
14 14 14 Reserved 20 Blank
15 15 15 ETX 03
(*) Position depends on the decimal point position parameterized for SIWAREX U.
If no decimal point is parameterized, the data string has one byte less.
Table 10-8 Character set used for display data
Character Hexadecimal Code Commentary
Digits 0 to 9 30 to 39 Representation of the digits
Minus sign “-” 2D Sign for negative values
Underline “_” 5F For “range exceeded” - indicated in
all character positions
Decimal point 2C Decimal point representation
Blank 20 For blanking out characters
Letter E
Letter r
45
72
For error display:
“Error”
STX 02 Protocol control character for start of
data string
ETX 03 Protocol control character for end of
data string
O
p
tional Com
p
onents
10-9
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Digital remote displays from the company Siebert Industrieelektronik GmbH
can be directly connected to the SIWAREX U via the TTY interface.
Remote displays which can be used:
-S10/SX10
-S30
-S70 (with option 97/16)
-S300
Siebert Industrieelektronik GmbH
Postfach 1180
D-66565 Eppelborn
Tel: +49 (0) 6806/980-0
Fax: +49 (0) 6806/980-111
Internet: http://www.siebert.de
Contact the manufacturer for detailed information.
Siebert remote
displays
O
p
tional Com
p
onents
10-10 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
10.2 Ex-i Interface for SIWAREX U
An Ex-i interface must be switched between the SIWAREX U and the force
and pressure sensors when these sensors are located in potentially explosive
areas. The Ex-i interface SIWAREX Pi or SIWAREX IS is used for this pur-
pose. This interface can be used for the SIWAREX U, P, M.
When the two-channel model of the SIWAREX U is used, each measuring
channel requires an Ex-i interface.
The Ex-i interface makes the 6 lines for connection of a load cell (i.e., sup-
ply, sense and measuring lines) intrinsically safe in accordance with ignition
protection type [EEx ib] IIC. ATEX approval certifies that pertinent stan-
dards and regulations have been complied with.
!Danger
The safety of the potentially explosive area is dependent on this device.
Only qualified personnel may perform the required connection and installa-
tion work.
In case of non-adherence:
D A N G E R O F E X P L O S I O N !
Description
O
p
tional Com
p
onents
10-11
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
10.2.1 Layout
The Ex-i interface provides 6 safety barriers.
Two voltage limiters and 2 active current limiters are provided for each of the
two supply lines.
Two voltage limiters and 2 passive current limiters are provided for each of
the measured value lines and sense lines.
Supply
lines
Sense
lines
Measured
value lines
Voltage
limiter
Intrinsi-
cally
safe area
Current
limiter
(active)
14
25
36
Shield Shield
Voltage
limiter
Voltage
limiter
Current
limiter
(passive)
Current
limiter
(passive)
Figure 10-4 Diagram of the Ex-i interface
O
p
tional Com
p
onents
10-12 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
O
p
tional Com
p
onents
11-1
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
SIWATOOL - Description and Use
SIWATOOL is used for error diagnostics and to parameterize and commis-
sion the SIWAREX U. SIWATOOL can be started with Windows and
STEP 7.
SIWATOOL permits several SIWAREX U modules to be processed at the
same time.
However, only one SIWAREX U module can be parameterized online at the
same time.
When several scales are parameterized, the individual parameterization win-
dows of several offline modules and one online module can be indicated si-
multaneously on the monitor screen.
This makes it easy to adjust parameters of different modules to each other, or
compare them.
SIWATOOL runs under WINDOWS. It uses the typical WINDOWS environ-
ment and structure.
WINDOWS users will have no trouble using SIWATOOL. Its well-organized
pull-down menus make it almost self-explanatory. On-line aids provide sup-
port when commissioning the scales.
The status of the scales can be used as a diagnostic tool or for error diagnos-
tics.
Purpose
Use
11
11-2 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
11.1 Installing SIWATOOL on PC/PG
The following requirements apply to the installation and use of SIWATOOL.
SPC (processor 80486 or later)
SWorking storage (min. of 4 Mbytes)
SWindows 95/98/NT/ME/2000
SHard disk (10 Mbytes free memory space)
SFree serial interface (COM n)
Proceed as follows to install SIWATOOL:
1. Place the installation CD (SIWAREX U configuration package)
in the drive.
2. Call the installation program via the Windows Explorer.
– SETUP.EXE is located in the “SIWATOOL” directory
3. Specify the installation directory and a program group.
4. Setup is now performed automatically.
Figure 11-1 S7 setup
Requirements
Installation
SIWATOOL - Descri
p
tion and Use
11-3
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
11.2 Commissioning SIWAREX U with SIWATOOL
If your SIWAREX U is to be commissioned online, the SIWAREX U must be
connected to the PC or PG (i.e., programmer) with a suitable, serial interface
cable (order no. 7MH4 607-8CA).
Call SIWATOOL:
SDouble click the program icon
SOr double click SIWATOOL.EXE in Explorer
After the interface has been selected, a new set of scales can be set up via the
menu command “File > New”. The scales names and units of weights must
be set. The numbers 0 to 15 may be used as module numbers.
Note
Every SIWAREX U can be addressed with module number “0” regardless of
which module number is assigned to it.
If, for example, the module number “4” was assigned to a SIWAREX U, this
SIWAREX U can be addressed under module number “0” and “4”.
On delivery, the module number for the SIWAREX U has been set to “0” at
the factory. This means that the module number must always be specified as
“0” during initial commissioning. The module number can then be changed
later in the menu.
After SIWATOOL has been started, the serial interface used on the PC/PG
(e.g., COM1) must be set via the menu command “Option > Select Inter-
face”.
Start SIWATOOL
Set up new
scales
Select interface
SIWATOOL - Descri
p
tion and Use
11-4 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
After the new set of scales has been set up, the message “No communication”
appears in the status bar. To establish communication, the serial RS 232 in-
terface must now be set via the menu command “Option > Select Parity”.
Factory setting of SIWAREX U: Even parity
The menu command “Module > Connect” causes the PC to establish commu-
nication with the SIWAREX U. The message “offline” disappears, and a
measured value is indicated.
If the SIWAREX U has not been adjusted yet, the measured value is still
“frozen” (i.e., it does not change when the scales are loaded).
Note
Even if the parity of the RS 232 interface has been set incorrectly,
SIWATOOL determines the correct interface setting automatically. If com-
munication cannot be established after 20 seconds, check the following.
SThe wiring
SThe COM setting (COM1, COM2 ...)
SThe module number
Set interface
Activate
communication
SIWATOOL - Descri
p
tion and Use
11-5
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
11.3 SIWATOOL Menu Tree
After a new set of scales has been set up, the main menu bar is displayed.
The main menu bar contains the following submenus.
Help Contents
About
View Error Report
Toolbar
Status Bar
Option Select Interface
Select Parity
File New
Open
Save
Save As...
Close
Print
Print Preview
Printer Set
Exit
Edit Cut
Copy
Delete
Module Connect
Disconnect
Read All Data
Send All Data
Digit Values
Read Memory
Window Arrange
Arrange Icons
Cascade
Horizontally
Vertically
SIWATOOL - Descri
p
tion and Use
11-6 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
11.4 Adjustment of the Scales
Before adjusting the scales, you should always know the number of positions
after the decimal point since it determines the available resolution (see also
section 11.5).
Use the button to access the “Adjustment Data” dialog.
Figure 11-2 Dialog on scales adjustment
When a new adjustment is to be performed, the factory settings should al-
ways be loaded first (“Factory” button).
The number of positions after the decimal point should then be specified
since the format of all other entries are based on this factor.
As the next step, enter the adjustment weight. These values are transferred to
the SIWAREX U by activating the Send button.
Note
Decimal points are indicated as “.” in SIWATOOL.
New adjustment
SIWATOOL - Descri
p
tion and Use
11-7
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Adjustment with a test weight is described in detail in section 3.3.
Proceed as follows with SIWATOOL.
SEnter characteristic value, decimal point and adjustment weight and then
press the “Send” button.
SEmpty the scales, and activate the “Set as Zero” button.
SLoad the scales with the test weight, and activate the “Adjust” button.
The adjustment digits “0” and “1” are not indicated by SIWATOOL until the
scales are in adjusted status (i.e., both the zero point and the adjustment
weight have been declared valid).
Theoretical adjustment is also described in section 3.3.
After the scales have been adjusted, you can then enter the remaining settings
(e.g., filter and so on).
Clicking the “Send” button sends the settings entered with SIWATOOL to the
SIWAREX U.
In reverse, the parameters set in SIWAREX U can be sent to SIWATOOL by
clicking the “Receive” button.
Adjust with test
weight
Theoretical adjust-
ment
Other settings
SEND
RECEIVE
SIWATOOL - Descri
p
tion and Use
11-8 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
11.5 Important Notes on Settings in SIWATOOL
The decimal point only applies to the remote displays. The weighing values
are represented as fixed point numbers without decimal point on the S7 bus
and the serial interfaces.
Example:
If the decimal point XX.XXX is set via SIWATOOL, a weighing value is in-
dicated by SIWATOOL as 4,123 kg for example, and as the fixed point num-
ber 4123 by the SIMATIC.
(The weight values are shown on a remote display as they are shown in
SIWATOOL.)
The setting of the number of positions after the decimal point determines the
resolution available.
Table 11-1 Example
Adjustment
Weight
Measuring
Range
Digit
Increment
Resolution
in g
Resolution of
Measuring Range
100 kg 0 to 200 kg 11000 g 200 parts
100.00 kg 0 to 200.00 kg 110 g 20,000 parts
Changing the decimal point later may mean that you will also have to make
changes on the SIMATIC side.
SModule number
SInterface parameters
SIndication type
SAllocation of the LEDs
are parameterized in different SIWATOOL screens but are all stored in data
record DR5 of the SIWAREX U.
Remember that these 4 settings can only be read and written together.
Example:
When the indication type is written to the SIWAREX U, the module number,
interface parameters and LED allocation are also written to the
SIWAREX U.
Decimal point
Special case, DR5
SIWATOOL - Descri
p
tion and Use
11-9
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
11.6 Weighing Status
The status window can be used to view the weighing status of the
SIWAREX U.
Figure 11-3 Status window of the set scales
Functions of the function keys (from left to right)
1st function key: Set new weighing parameters
2nd function key: Load weighing parameters
3rd function key: Store weighing parameters
4th function key: Print
5th function key: Indicate program information
6th function key: Error report
The weighing status and the weighing value are displayed on the monitor
screen.
SIWATOOL - Descri
p
tion and Use
11-10 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
11.7 Diagnostic Capabilities with SIWATOOL
When an online connection exists, the synchronous errors triggered by
SIWATOOL actions are indicated in an online error report. “Cut” or “De-
lete” can be used to delete the synchronous errors from the error report. Cur-
rently queued asynchronous errors are also indicated in the online error re-
port. The error status of the SIWAREX U (i.e., group errors) is also indicated
in the main window.
During online operation, SIWATOOL acquires and logs the errors of the sca-
les.
The online error report is indicated by clicking on .
Figure 11-4 Online error report
The menu command “Help > About” can be used to read the firmware ver-
sion of the SIWAREX U. In addition, the software status of SIWATOOL is
indicated. Before contacting our hotline for technical problems, please read:
1. The firmware version of SIWAREX U
2. The software status of SIWATOOL
This function is only used by the Siemens hotline for service purposes.
Error handling
Online error report
Version
information
Read memory
SIWATOOL - Descri
p
tion and Use
12-1
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Error Diagnostics and Treatment
The SIWAREX U supports the user during commissioning and trouble-
shooting with a structured diagnostic concept. The malfunction and error
messages are divided into various classes of errors.
When an error causes the SIWAREX U to switch to FAULT operating mode,
no weighing commands are possible. This operating mode is retained until
the fault has been corrected. An error acknowledgment is not required.
In this state, a command is rejected with an error message. Reading and
writing of data records is still possible if the type of error permits.
Internal errors and external errors cause the group error status (³ SF LED
goes on). The module switches to FAULT operating mode.
FAULT operating mode is exited automatically after the fault has been cor-
rected (e.g., A/D converter, control level limit exceeded).
The following table provides an overview of the various types of fault and
error messages and their differences.
Table 12-1 Types of errors
Type of Error Description
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Data errors
(synchronous error) (*)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Plausibility errors which occur when parameters and pre-
specified values are transferred
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Handling errors
(synchronous error) (*)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Errors which occur while a command is being executed.
The command is then not executed.
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Internal errors
(asynchronous error)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Hardware errors which can be detected by the module and
which are reported
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
External errors
(asynchronous error)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Errors of the connected periphery (hardware errors)
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Other errors
(section 12.2)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Errors which do not fit into one of the above mentioned
classes
(*) Synchronous errors are only reported back to the interface which caused the error.
General faults
Error classification
12
12-2 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Synchronous errors are only output on the interface which caused the error.
Evaluation via data record DR31, 32 or 76.
Table 12-2 Synchronous errors
Bit
No.
Bit = 1 Corrective Measures
0Adjustment command could not be
executed since the distance to the ad-
justment point is too short.
Use heavier adjustment weight (at
least 5% of the set measuring range).
1Job could not be executed due to mal-
function.
Correct module malfunction first.
2A non-existent or inactive channel
was addressed.
Use another channel or enable the
channel.
3Code not defined (e.g., limit fre-
quency, digital filter and so on)
Use correct code.
4Data record identifier unknown Check data record identifier.
5Command not possible since scales
not adjusted
Adjust scales first.
6Wait time of 5 sec not adhered to du-
ring adjustment command
Adhere to the 5-sec wait time between
two adjustment commands.
7The adjustment weight is negative. Adhere to the permissible number
range.
7-15 Reserved
When the SIWAREX U is coupled to a host system with the RS 232C inter-
face, a synchronous error in the acknowledgment telegram (DR101) may be
reported to the host. The error number is only valid for synchronous errors
and corresponds to the less significant byte of the synchronous error word.
!Warning
In the event of an error, take appropriate measures by evaluating the error.
Synchronous
errors
Error Dia
g
nostics and Treatment
12-3
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Asynchronous errors cause the group error state. The SF LED goes on, and
the module assumes malfunction status. This malfunction state is automati-
cally exited as soon as the error is corrected. When a channel-related error
occurs on a two-channel module, the channel which is not malfunctioning
remains fully functional although the malfunction state is assumed.
Asynchronous errors are available on all interfaces.
Evaluation via data records DR31, 32 or 75
Table 12-3 Asynchronous errors
Bit
No.
Bit = 1 Corrective Measures
0Control limit, ADC (*) Is SIWAREX U characteristic value
range set incorrectly, or are the scales
overloaded?
1Minimum voltage on sense line
(Usense± < 5V) (*)
SCheck lines for wire breaks
SLoad cells with 4-conductor tech-
nology:
Were wire jumpers forgotten?
SMax. cable length exceeded
SShort circuit in the power lines? If
so, both channels are affected.
2 Watchdog Reset module via power OFF/ON. If
th ti t t
3Error in EPROM (program) the error continues to occur, execute
the load factory settings command. If
4Error in EEPROM (data)
the load factory settings command
.
If
the error is still reported, contact the
5RAM error (read/write error)
p,
hotline.
6ADC error during read-access
7Number overflow for gross weight (*) Is SIWAREX U characteristic value
range set incorrectly, or are the scales
overloaded?
8Ext. supply voltage (24 V) Check 24 V supply.
9-15 Reserved
(*) These errors are only reported for specific channels. The other errors are entered for
both channels.
Asynchronous
errors
Error Dia
g
nostics and Treatment
12-4 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
12.1 Error Treatment
Data errors are plausibility errors which occur during the transmission of pa-
rameters and prespecified values.
These error messages are reported in the acknowledgment telegram and in
data record DR31/32 on the serial RS 232C interface.
When a data error occurs, none of the data of this data record are accepted
and processing continues with the old data.
Handling errors are errors which usually occur while a command is being
executed. When a handling error occurs, the desired command is not execu-
ted.
These error messages are reported in the acknowledgment telegram and in
data record DR31/32 on the serial interface.
Internal errors are hardware errors which have been detected by the module
and which can be reported.
These errors are reported on the S7 interface with a diagnosis alarm.
The current error states can be fetched with a fetch telegram on the serial
interfaces.
External errors are hardware errors of the connected periphery.
These errors are reported on the S7 interface with a diagnosis alarm.
The current error states can be fetched with a fetch telegram on the serial
interfaces.
Data errors
Handling errors
Internal errors
External errors
Error Dia
g
nostics and Treatment
12-5
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
12.2 General Behavior During Malfunctions
When one channel of the module is malfunctioning due to an internal or ex-
ternal hardware error, commands cannot be issued to this channel. This does
not affect reading and writing data, or commands for other channels.
Channel-related asynchronous errors (minimum voltage underranged on
sense lines or measuring range exceeded, and so on) are only reported by
individual channel when the channel is enabled or is present. This makes it
possible to use only one channel of a two-channel module without wire
breaks being reported for the unused channel.
Other errors are errors which do not fit the error classes previously mentio-
ned. Examples include errors which can be deduced from the front LEDs or
errors which cause unusual behavior.
Various status and error message lamps are located on the right side of the
housing (see view of the front). These LEDs indicate various operating sta-
tes.
Table 12-4 Diverse errors
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
Behavior
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
Possible Cause
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
Corrective Measures
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
24 V present
(24 V LED on), but no
other function
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Soldered in fuse on the
power supply PCB is de-
fective, or other hardware
defect
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Send in module for repairs
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
24 V present
(24 V LED on), but no
other function
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
SIWAREX U is not being
supplied with 5 V by the
S7 bus
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Check bus plug connector.
Is S7 CPU or IM 153-1
turned on?
24 V LED off 24 V supply voltage is not
present
Turn on supply voltage
SF-LED on Internal or external error Cf. description of internal
and external errors
Failure of the 24 V supply voltage triggers a diagnostic alarm on the
SIMATIC S7.
Behavior during
malfunctions
Other errors
Error Dia
g
nostics and Treatment
12-6 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Error Dia
g
nostics and Treatment
13-1
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Technical Specifications 13
13-2 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
13.1 Interfaces
A function low voltage with safe isolation (in accordance with EN 60 204-1,
section 6.4, PELV) must be provided by the system voltage supply.
Nominal voltage 24 V DC (Protection Against
Pole Reversal)
Lower/upper limits, static 20.4 V/28.8 V DC
(in acc. with DIN 19 240)
Lower/upper limits, dynamic 18.5 V/30.2 V DC
(in acc. with DIN 19 240)
Noncyclic overvoltages 35 V DC for 500 msec
at a recovery time of 50 sec
Maximum current consumption 220 mA
Power loss of the module (typical) 4.8 W
Switchon current surge at 25° C (typical) 2.5 A
Current consumption from S7-300 backplane bus 100 mA (typical)
Voltage supply,
24 V DC
Voltage supply
from the
SIMATIC S7-300
backplane bus
Technical S
p
ecifications
13-3
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Class accuracy at 20° C "10 K
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
0.05 %
(0.05% with Ex-i interface)
Minimum measuring signal D uMin per d 1.5 mV
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Update rate
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
20 msec
100 msec (up to release
status 4)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Internal resolution
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
16 bits (65,535 parts)
Representation range of the weight values -32,768 to 32,767
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
3 measuring ranges
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
0 to 1 mV/V
0 to 2 mV/V
0 to 4 mV/V
Permissible range of the measuring signal (largest
characteristic value set)
–1.5 to 42.5 mV
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Max. distance of the load cell
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
1000 m (*)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Max. distance of the load cell to the Ex-i interface in
Ex area
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
Gas group II B: 1000 m (*)
Gas group II C: 300 m (*)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Load cell supply
SVoltage
SCurrent per channel
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
SShort circuit and overload-
proof
S6-conductor technology
SWire break monitoring
Typical DC 10.3 V (**)
v 240 mA (one-channel SI-
WAREX U)
v 120 mA (two-channel SI-
WAREX U per channel)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Permissible load cell resistance without
Ex-i interface
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
> 41 Ω (one-channel SIWA-
REX U)
> 82 Ω (two-channel SIWA-
REX U)
< 4010 Ω
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Permissible load cell resistance with Ex-i interface
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
> 87 W
< 4010 W
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Monitoring of the sense inputs
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
" 2.5 V
Hysteresis, 300 mV
Max. permissible input voltage on the signal and
sense inputs
15 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Triggering time of the sense line monitor
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
1 sec
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Noise (band width of 10 Hz)
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
150 nV, typical
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Common mode suppression, CMRR @ 50 Hz
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
200 dB, typical
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Measured value filter
- Digital filter, 4th order, critical attenuation
- Switchable, average value filter
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
0.5 to 5 Hz
Average value over 32
measured values
(*) The minimum voltage must be maintained on the sense lines.
(**) Measured values apply to the output of the module.
Load cell interface
Technical S
p
ecifications
13-4 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Baud rate 9600 baud
Max. distance 15 m
Signal level In acc. with EIA-RS 232C
Max. loop current for external supply
(Must be provided by the user)
25 mA
Operating mode One-direction
(i.e., only sending (TxD))
Typ. loop current 20 mA
Potential isolation (external supply) 500 V
Baud rate 9600 baud
Max. distance (external supply) 1000 m
Max. external voltage, sender Max. of 28.8 V
Voltage drop, sender (typ.) 0.5 V
Basic data (i.e., parameterization data and adjustment data) are backed up on
EEPROM memory safe from loss due to a power failure.
Since it is not equipped with a battery, the module is completely maintenance
free.
Buffering time of the data in the EEPROM 100 years
Permissible number of write accesses for
EEPROM
100,000
MTBF in acc. with SN 29500 40 years
RS 232 interface
TTY interface
Data buffering
Reliability
Technical S
p
ecifications
13-5
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
13.2 Physical Requirements and Data
130 mm 40 mm
125 mm
Weight: Approx. 325 g
SIWAREX U
WEIGHING MODULE SF
ST1
ST2
24V
X2
34
Figure 13-1 Dimensions
Tests
Test Standards Test Values
Vibration stress
during operation
DIN IEC 68-2-6
DIN IEC 721, part 3-3
IEC 1131-2
Class 3M3
Test Fc
10 to 58 Hz: 0.075 mm displacement
58 to 150 Hz: 9.8 m/sec2
10 cycles per axis
1 octave/min.
Shock stress
during operation
DIN IEC 68-2-27
DIN IEC 721, part 3-3
IEC 1131-2
Class 3M3
Test Ea
150 m/sec2, semi-sinus
Duration: 11 msec
Number: 3 per axis
In neg. and pos. direction
Dimensions
Technical S
p
ecifications
13-6 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
13.3 Electrical, EMC and Climatic Requirements
Electrical Protection and Safety Requirements
Requirement Met Standards Remarks
Safety regulations EN 60 204, DIN VDE 0113
IEC 1131, UL 508
CSA C22.2, no. 142
FM class I, div. 2
UL/CSA
The electrical protection and safety
requirements stated in UL, CSA and
FM are met. UL, CSA, and FM cer-
tification has been granted.
Protection class VDE 0106, part 1
IEC 536
Protection class I, with protective
conductor
IP protection class DIN 60 529 (x.xx)
IEC 529
In S7 rack: IP20
SIWAREX U alone: IP10
Air and creep paths IEC 1131
UL 508
CSA C22.2, no. 142
Overvoltage category II
Degree of soiling: 2
PCB material IIIa
Printed circuit interval: 0.5 mm
Isolation test IEC 1131-2: 1992
CSA C22.2, no. 142
Nominal voltage: 24 V
Test voltage: 500 V DC
Fire resistance For open type controller:
IEC 1131-2: 1992, UL 508
Manufacturing materials SN 36350 (3.93)
Electromagnetic Compatibility
Remarks Standards Accuracy
Burst pulses on current supply lines: DIN EN 61 000-4-4
(DIN VDE 0843 T4)
2 kV
(in acc. with 90/384/EWG 1 kV)
Burst pulses on data and signal lines: DIN EN 61 000-4-4
(DIN VDE 0843 T4)
2 kV
(in acc. with 90/384/EWG 0,5 kV)
Electrostatic contact discharge (ESD) DIN EN 61 000-4-4
(DIN VDE 0843 T2)
6 kV
Electrostatic air discharge (ESD) DIN EN 61 000-4-4
(DIN VDE 0843 T4)
8 kV
ÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁ
Impulse voltage/surge on current
supply lines
ÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁ
DIN EN 61 000-4-5
(DIN VDE 0843 T10)
ÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁ
" 2 kV non-symmetric(*)
" 1 kV symmetric
ÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁ
Impulse voltage/surge on data and
signal lines:
ÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁ
DIN EN 61 000-4-5
(DIN VDE 0839 T10)
ÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁ
" 1 kV non-symmetric(*)
RF emission (electromagnetic fields),
10 kHz to 80 MHz
DIN EN 61 000-4-3
(DIN VDE 0843 T3)
Up to 3 V/m
RF emission (electromagnetic fields),
80 MHz to 1000 MHz
DIN EN 61 000-4-3
(DIN VDE 0843 T3)
Up to 10 V/m
(in acc. with 90/384/EWG 3 V/m)
RF electrification 10 kHz to 80 MHz IEC 801-6 10 V (mod: 80% AM with 1 kHz)
Technical S
p
ecifications
13-7
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Remarks AccuracyStandards
Interference suppression (**) EN 55 011, VDE 0875, part 11 Class A
(*) Must be ensured via external protective components
(**) Additional measures are required (e.g., installation in 8MC cabinets) when used in residential areas.
The guidelines contained in part 1 of NAMUR NE21, and 89/336/EWG
covering emission and resistance to electromagnetic interferences have been
complied with for electromagnetic compatibility.
The SIWAREX U is designed for permanent use in SIMATIC S7-300 sy-
stems, protected from the weather. IEC 1131-2 describes the conditions of
use.
When used under particularly rugged operating conditions (e.g., high degree
of dust, presence of caustic fumes or gases, etc.), additional protection must
be provided (e.g., encapsulation).
Climatic Requirements
Remarks Environmental Requirements Application Areas
Operating temperature:
Vertical installation in S7-300
Horizontal installation in S7-300
0° to +60° C
0° to +40° C
The standard S7-300 modules may
not be operated at temperatures of
under 0° C.
Storage and transportation tempera-
ture
-40° to +70° C
Relative humidity 5 to 95% Without condensation. Corresponds
to relative humidity degree 2 in acc.
with DIN IEC 1131-2.
Air pressure during operation 795 to 1080 hPa Corresponds to a height of
(-1000 to 1500 m above sea level)
Air pressure during storage 660 to 1080 hPa Corresponds to a height of
(-1000 to 3500 m above sea level)
Pollution concentration SO2: < 0.5 ppm
H2S: < 0.1 ppm
Rel. hum. < 60%, no condensation
EMC
Environmental
requirements
Technical S
p
ecifications
13-8 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
13.4 Potential Isolation
100K
24 V supply
pin 1/2
Load cell
pin 8-13* or
pin 15-20
RS 232C
interface
TTY interface
S7 bus interface
* Only for two-channel SIWAREX U
100K
100K
Technical S
p
ecifications
14-1
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Hotline/Repairs/Replacement Parts/Inter-
net
Siemens AG
A&D PI 14
Tel: +49 (0)721 595 2811
Fax: +49 (0)721 595 2901
Contact your Siemens representative at your local or national branch.
Information available under Internet address
http://www.siwarex.de/
SProduct information
STraining courses
SInformation on current software states
SDownloads
Hotline
Repairs/
replacement parts
Internet
14
14-2 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Hotline/Re
p
airs/Re
p
lacement Parts/Internet
Index-1
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Index
A
A/D conversion, 3-2
Accuracy, 13-3
Active backplane bus, 5-2
Addressing, IM 308C, 6-6
Adjustment procedure, 3-5
Adjustment with adjustment weight, 3-4
Asynchronous errors, 9-14, 12-3
S5, 6-24
S7, 5-4
B
Backup, 3-16
Basic parameters, 5-1
S5, 6-10
BASP signal, 3-18
Booting, 3-14
Bus connector, 2-5
C
Calibration, 3-2
Channel, 3-18
Characteristic value, 3-4
Commissioning, preparation for, 2-16
Communication types, overview, 2-19
Connection, Remote displays, 10-3
Connection elements, 2-8
D
Data backup, 3-16
Data consistency, S5, 6-7
Data errors, 12-4
S7, 5-3
Data formats in S5/S7, 9-3
Data records, overview, 4-4, 9-1
Decimal place, 3-4
Default values, 3-17
Diagnostic alarm
Enable in S7, 5-1
S7, 5-3
Diagnostics
S5, 6-24
S7, 5-4
Digital filter, 3-3
Distributed, S5/S7 overview, 1-5
DR0, 9-4
DR1, 9-6
DR100, 9-17
DR101, 9-17
DR11, 9-11
DR12, 9-12
DR21, 9-12
DR22, 9-12
DR3, 9-7
DR31, 9-13
DR32, 9-13
DR4, 9-9
DR40, 9-15
DR5, 9-9
DR57 to 79, 9-16
DR6, 9-10
E
EEPROM, 3-4, 3-10, 3-12, 4-3
EMC, 13-7
Enable in S7, 5-1
Environmental requirements, 13-7
Equipotential bonding conductor, 2-11
Error classification, 12-1
Error diagnostics, 12-1
Ex area, 10-10
Ex-i interface, 10-10
External devices, 10-1
External errors, 12-1, 12-4
F
Factory setting, 3-17
FB 192 release states, 6-1
Fill level scales, 1-9
Front, 2-8
Functions, 3-1
Index-2 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
G
GSD files, 7-1
H
Handling errors, 12-4
S7, 5-3
Hotline, 14-1
I
I/O area, allocation, 6-11
I/O communication in S7, 5-2
IM 153-1, release states, 6-2
IM 308-C
Release states, 6-1
Transmission speeds, 6-2
Indicators, 2-8
Installation, SIWATOOL, 11-2
Internal errors, 12-1
Internet, 14-1
Introduction to SIWAREX U, 1-2
J
Job control, I/O communication, 6-11
L
LED, 2-8, 2-17
Allocation of, 3-17
Error message, 12-5
LED color, 2-8
Life bit, I/O communicaton, 6-13
Limit values, 3-12
Load cell connection, 2-10
Load cell interface
4-wire technique, 2-11
6-wire technique, 2-11
M
M7-300, Overview, 1-4
Mean value filter, 3-3
Measured value acquisition, 3-2
Max. limit values, 3-12
Min. limit values, 3-12
Mounting, how to, 2-5
Mounting elements, load cells, 1-8
N
Number of SIWAREX U, 2-3
O
OD signal, 3-18
Overview, 1-9
SIWAREX U, 1-3
system intagration, 1-4
P
Parameter assignment, overview, 2-18
PC connection, wiring, 2-13
Periphery, Overview, 1-7
Potential isolation, 13-8
Power failure, 3-16
Power supply, 2-8, 2-9
Printer, 10-1
Process interrupts
Enable in S7, 5-1
S7, 5-2
R
Readjustment, 3-5
Remote display connection, wiring, 2-15
Remote displays, 10-2
Protocol layout, 10-7
Settings, 10-5
Repair, 14-1
Replacement parts, 14-1
RS 232C interface, 2-13
S
S5-95U/DP
Release states, 6-2
Transmission speeds, 6-2
S7 setup, 5-1
S7-300, Overview, 1-4
Safety, 3-14
Notes on, 2-1
Safety precautions, 2-3
Sample program
S5, 6-16
S7, 5-3
Scales functions, 3-1
Screw terminals, 2-10, 2-13, 2-14
Index
Index-3
SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Serial interface, 2-13, 2-15
Setting to zero, 3-10
Setup
Scales, mechanical, 1-8
SIWAREX Pi, 10-11
SIWAREX U, 1-7
Setup for STEP7, 5-1
SFC communication in S7, 5-2
Shield, mounting, 2-7
Shield holder element, 2-5
Shield terminal, 2-5, 2-7
SIWAREX U, 10-10
SIWATOOL, 11-1
Slot, SIWAREX U, 2-3
Stand alone, 1-7
Standard master, 7-1
Status byte, 9-13
I/O communication, 6-12
Synchronous errors, 12-2
S5, 9-15
S7, 5-4
System integration, Overview, 1-4, 4-2
T
Technical specifications, 13-2
Theoretical adjustment, 3-6
TTY interface, 2-15
Typendateien, 6-5
Types of access, S5, 6-10
Types of addressing, IM 308-C, 6-8
W
Weighing channel, 3-18
Weighing functions, overview, 1-9
Weight calculation, 3-4
Wire break monitoring, 3-14
Wiring, 2-7
Index
Index-4 SIWAREX U Equipment Manual
(4) J31069-D0605-U001-A3-7618
Index
