SNAP-LCM4 - Opto 22 - Datasheet.Live

SNAP-LCM4

INSTALLATION GUIDE

Form 1122-081008—October 2008

43044 Business Park Drive • Temecula • CA 92590-3614

Phone: 800-321-OPTO (6786) or 951-695-3000

Fax: 800-832-OPTO (6786) or 951-695-2712

www.opto22.com

Product Support Services

800-TEK-OPTO (835-6786) or 951-695-3080

Fax: 951-695-3017

Email: support@opto22.com

Web: support.opto22.com

SNAP-LCM4 Installation Guide

Form 1122-081008—October 2008

Printed in the United States of America.

The information in this manual has been checked carefully and is believed to be accurate; however, Opto 22

assumes no responsibility for possible inaccuracies or omissions. Specifications are subject to change without

notice.

Opto 22 warrants all of its products to be free from defects in material or workmanship for 30 months from the

manufacturing date code. This warranty is limited to the original cost of the unit only and does not cover installation,

labor, or any other contingent costs. Opto 22 I/O modules and solid-state relays with date codes of 1/96 or later are

guaranteed for life. This lifetime warranty excludes reed relay, SNAP serial communication modules, SNAP PID

modules, and modules that contain mechanical contacts or switches. Opto 22 does not warrant any product,

components, or parts not manufactured by Opto 22; for these items, the warranty from the original manufacturer

applies. These products include, but are not limited to, the OptoTerminal-G70, OptoTerminal-G75, and Sony Ericsson

GT-48; see the product data sheet for specific warranty information. Refer to Opto 22 form number 1042 for

complete warranty information.

Opto 22 FactoryFloor, Cyrano, Optomux, and Pamux are registered trademarks of Opto 22. Generation 4, ioControl,

ioDisplay, ioManager, ioProject, ioUtilities, mistic, Nvio, Nvio.net Web Portal, OptoConnect, OptoControl,

OptoDisplay, OptoENETSniff, OptoOPCServer, OptoScript, OptoServer, OptoTerminal, OptoUtilities, SNAP Ethernet

I/O, SNAP I/O, SNAP OEM I/O, SNAP Simple I/O, SNAP Ultimate I/O, and SNAP Wireless LAN I/O are trademarks of

Opto 22.

ActiveX, JScript, Microsoft, MS-DOS, VBScript, Visual Basic, Visual C++, and Windows are either registered

trademarks or trademarks of Microsoft Corporation in the United States and other countries. Linux is a registered

trademark of Linus Torvalds. Unicenter is a registered trademark of Computer Associates International, Inc. ARCNET

is a registered trademark of Datapoint Corporation. Modbus is a registered trademark of Schneider Electric.

Wiegand is a registered trademark of Sensor Engineering Corporation. Nokia, Nokia M2M Platform, Nokia M2M

Gateway Software, and Nokia 31 GSM Connectivity Terminal are trademarks or registered trademarks of Nokia

Corporation. Sony is a trademark of Sony Corporation. Ericsson is a trademark of Telefonaktiebolaget LM Ericsson.

All other brand or product names are trademarks or registered trademarks of their respective companies or

organizations.

SNAP-LCM4 Installation Guide  iii
Table of Contents
Chapter 1: Introduction............................................................................. 1-1
What’s In This Guide............................................................................................................1-2
For Help ................................................................................................................................ 1-2
SNAP-LCM4 Description ......................................................................................................1-3
System Architecture......................................................................................................1-3
Ethernet Network...................................................................................................1-3
Serial Direct Connection ........................................................................................1-4
ARCNET Network...................................................................................................1-4
Remote Communication .........................................................................................1-4
LCM4 I/O Connection Options................................................................................1-5
Options ..........................................................................................................................1-6
Interface Adapter Cards .........................................................................................1-6
Memory ..................................................................................................................1-6
Software........................................................................................................................1-6
Chapter 2: Quick Start............................................................................... 2-1
What You Will Need ............................................................................................................2-1
Instructions...........................................................................................................................2-2
Chapter 3: Jumpers and Communication ................................................ 3-1
Setting Jumpers ...................................................................................................................3-1
Setting the Controller Address......................................................................................3-2
Setting the Host Port.....................................................................................................3-2
Setting the Host Port Baud Rate ...................................................................................3-3
Setting the Communication Mode ................................................................................3-3
Setting the Boot Mode..................................................................................................3-3
AUTO and E/R Jumpers..........................................................................................3-3
X1 Jumper ..............................................................................................................3-4
Configuring Serial Ports .......................................................................................................3-4
Removing the Serial Card..............................................................................................3-5

iv  SNAP-LCM4 Installation Guide
Configuring Port 0..........................................................................................................3-5
COM0 RS-485 Configuration and Wiring...............................................................3-6
COM0 Modem Configuration and Wiring ..............................................................3-7
Configuring Port 1..........................................................................................................3-7
Configuring Ports 2 and 3..............................................................................................3-8
Pin Connections for COM2 and COM3...................................................................3-8
Setting the Mode for Port 2 ...................................................................................3-9
Setting the Mode for Port 3 ...................................................................................3-9
Connecting the Controller to Remote I/O...........................................................................3-10
Downloading New Firmware .............................................................................................3-10
Chapter 4: Troubleshooting .......................................................................4-1
Appendix: Specifications  .......................................................................... A-1
Specification Table.............................................................................................................. A-1
LED Descriptions .......................................................................................................... A-2
Dimensional Drawings and Mounting Diagrams................................................................ A-3
DIN-Rail Mounting ....................................................................................................... A-4
Cable Recommendations..................................................................................................... A-5
Ethernet ........................................................................................................................A-5
Serial ............................................................................................................................ A-5
Power Supply Recommendations........................................................................................ A-6
Third-Party Power Supply Vendors............................................................................... A-6

SNAP-LCM4 Installation Guide 1-1

CHAPTER 1

Chapter 1

Introduction

The SNAP-LCM4 is a powerful industrial controller that provides real-time control and

communication to input/output (I/O) systems, serial devices, motion controllers, and networks.

The SNAP-LCM4 controller is designed for use with Opto 22’s SNAP or Mistic remote I/O systems

and Opto 22 FactoryFloor® software for industrial automation. The SNAP-LCM4 provides the

flexibility of Ethernet, ARCNET, serial, or remote communication options.

INTRODUCTION

1-2 SNAP-LCM4 Installation Guide

What’s In This Guide

This guide includes the following:

•Chapter 1—Introduction discusses applications, options, and software for the LCM4.

•Chapter 2—Quick Start shows how to install a generic SNAP-LCM4 controller using

factory settings.

•Chapter 3—Jumpers and Communication gives detailed instructions for changing

factory settings.

•Chapter 4—Troubleshooting helps solve problems you may encounter.

•Appendix—Specifications includes specifications and dimensional drawings, as well

as DIN-rail mounting diagrams and information on cables and power supplies to use with

the SNAP-LCM4.

For Help

If you have problems installing or using the SNAP-LCM4 controller and cannot find the help you

need in this guide, contact Opto 22 Product Support.

Phone: 800-TEK-OPTO (835-6786)

951-695-3080

(Hours are Monday through Friday,

7 a.m. to 5 p.m. Pacific Time)

Fax: 951-695-3017

Email: support@opto22.com

Opto 22 website: www.opto22.com

When calling for technical support, be prepared to provide the following information about your

system to the Product Support engineer:

•Software and version being used

•Controller firmware version

•PC configuration

•A complete description of your hardware and operating systems, including:

– jumper configuration

– accessories installed (such as expansion daughter cards)

– type of power supply

– types of I/O units installed

– third-party devices installed (for example, barcode readers)

NOTE: Email messages

and phone calls to

Opto 22 Product Support

are grouped together

and answered in the

order received.

INTRODUCTION

SNAP-LCM4 Installation Guide 1-3

•Specific error messages seen.

SNAP-LCM4 Description

System Architecture

The SNAP-LCM4 is designed for easy configuration in a variety of communication scenarios,

including Ethernet, serial, ARCNET, and remote connections. It can be integrated with Opto 22’s

digital and analog I/O systems as well as with other intelligent equipment devices, such as

industrial PCs, M4RTUs, or other Opto 22 controllers.

The following diagrams show the versatility of communications using the SNAP-LCM4.

Ethernet Network

INTRODUCTION

1-4 SNAP-LCM4 Installation Guide

Serial Direct Connection

ARCNET Network

Remote Communication

INTRODUCTION

SNAP-LCM4 Installation Guide 1-5

Using these communication options, the LCM4 can connect to a variety of Opto 22 I/O, as the

following diagram demonstrates:

LCM4 I

O Connection Options

INTRODUCTION

1-6 SNAP-LCM4 Installation Guide

Options

Interface Adapter Cards

The SNAP-LCM4 has four expansion slots that can accommodate the following communication

interface cards. (For installation information, see the interface card documentation.)

Memory

Memory (RAM and Flash EEPROM) is not expandable.

Software

The SNAP-LCM4 controller is designed to work with Opto 22’s FactoryFloor software suite, which

consists of four integrated components:

•OptoControl™, a graphical, flowchart-based development environment for machine control

and process applications, which can run on a real-time industrial controller such as the

SNAP-LCM4 or in a pure Microsoft® Windows NT® environment

•OptoDisplay™, an intuitive, shared database, human-machine interface (HMI) and trending

package

•OptoServer™, a robust, OPC-compliant data server that connects the controller network

with the PC network

•OptoConnect™, a bi-directional link between the SNAP controller database and Microsoft’s

SQL Server® and Access® databases.

The SNAP-LCM4 controller is programmed using OptoControl on a PC workstation. OptoControl

is easy to use and self-documenting. It uses a plain English command set and a long tagname

database shared by all FactoryFloor components.

The SNAP-LCM4 also works with Opto 22’s Classic 16-bit software: Cyrano, Mistic MMI, and

Mistic Data Server (MDS).

Interface Adapter

Card Use Current Draw

M4SARC High-performance coaxial ARCNET

200 mA

M4DUALARC Dual twisted-pair ARCNET (for HA brains)

150 mA

M4SARCF Fiber optic ARCNET

250 mA

M4SARCFR Fiber optic ARCNET with repeater

350 mA

M4SENET100 10/100 Mbps Ethernet* (Cat. 5 UTP)

1.00 A

*NOTE: Only one Ethernet card per controller is supported at this time. The Ethernet card currently

accommodates 128 sessions, including FactoryFloor, Ethernet brains, and other Ethernet devices.

SNAP-LCM4 Installation Guide 2-1

CHAPTER 2

Chapter 2

Quick Start

This section gives quick instructions for installing a generic SNAP-LCM4 controller using

factory-default settings, which are shown on page 3-1. If you are not using the factory defaults,

see the detailed instructions in the following sections:

What You Will Need

•SNAP-LCM4 controller

•+5 VDC power supply

•PC with OptoControl and a free RS-232 serial port

•RS-232 cable

•multimeter

•small flathead screwdriver

•pair of wire strippers/cutters.

For help with See page

Setting jumpers:

•controller address

•host port

•host port baud rate

•boot mode

3-1

3-2

3-3

Opening the controller and configuring the serial ports

3-4

Connecting the controller to remote I/O

3-10

QUICK START

2-2 SNAP-LCM4 Installation Guide

Instructions

1. Unpack the controller. Check to make sure you have the following:

•SNAP-LCM4 controller

•jumpers

•connectors

•3.6-V lithium backup battery

•floppy disk containing firmware.

2. With the power supply off or unplugged, connect it to the controller.

The SNAP-LCM4 controller requires only 5 VDC power, which can be supplied by the

Opto 22 SNAP-PS5 or any 5 V power supply meeting SNAP-LCM4 power requirements.

The controller does not have a power switch; to turn it off, switch off the power supply.

CAUTION

Reversing wire polarity may cause damage to your controller. This damage is not covered by Opto 22’s

warranty. If in doubt about which wire is which on your power supply, check with a meter.

a. With the power supply off or unplugged, connect the +5 V lead from the power supply

(normally red) to the +5V terminal on the SNAP-LCM4 backplane.

b. Connect the COM wire from the power supply (normally black) to the GND terminal on

the SNAP-LCM4 backplane. Optionally, you can connect the earth ground terminal to

panel ground.

3. If necessary, change the configuration jumpers.

Default jumper settings are as follows:

Default Jumper Settings

EEPROM/RAM: Run from RAM

Autoboot: Disabled

Communication: Binary

BootLoader: Boot to kernel

Host port: COM 0

Baud rate: 38.4 K

Address: 1

QUICK START

SNAP-LCM4 Installation Guide 2-3

If you are not using factory defaults, see Chapter 3 to change the jumpers.

4. If necessary, install optional adapter cards.

See the data sheet for the adapter card for complete installation instructions.

5. Mount the SNAP-LCM4.

The SNAP-LCM4 controller can be panel-mounted or mounted on a DIN rail. DIN-rail

mounting requires a DIN clip package, part number SNAP-LCM4DIN (not included). For

dimensional drawings, see page A-3.

•For panel mounting, use two screws on each side of the SNAP-LCM4 controller to

mount it to a panel.

•For DIN-rail mounting, see instructions on page A-4.

6. Connect the SNAP-LCM4 controller to Opto 22 I/O units.

Use the built-in COM1 port to communicate with Opto 22 digital or analog (or both) I/O. Set

up the I/O unit as shown in its installation guide. The diagram below illustrates connection

with a B3000 brain board:

7. Connect the SNAP-LCM4 controller to a personal computer (PC).

You can start with a pre-wired RS-232 cable that you don’t mind cutting, or you can make

your own cable. Cut off the end of the cable that DOES NOT plug into the computer and

wire the cable as shown in the diagram on the following page.

QUICK START

2-4 SNAP-LCM4 Installation Guide

Important: If RTS and CTS are not used, be sure to connect RTS to CTS on the SNAP-LCM4

as shown below.

8. Configure the controller using OptoControl.

In order to be useful with a SNAP-LCM4 controller, a PC must have at least one element of

Opto 22’s FactoryFloor software suite installed: OptoControl, OptoDisplay, OptoServer, or

OptoTerm. This guide assumes that you will configure the controller using OptoControl. For

instructions, see the OptoControl User’s Guide (Opto 22 Form number 724).

Cycle power to the SNAP-LCM4 by flipping the power supply’s power switch off, waiting

10 seconds, then turning it on again. Any change to configuration jumpers will only take

place after power is cycled.

9. Verify communications by using the OptoTerm utility included with FactoryFloor.

a. Choose Start➞Programs➞Opto22➞OptoUtilities➞OptoTerm.

b. In the OptoTerm main window, double-click the controller’s name in the list.

c. Look for a window displaying information about the controller.

d. If the window does not appear, make sure you cycled power to the controller after any

change. If it still doesn’t appear, check wiring connections and jumper settings.

Your SNAP-LCM4 controller is now ready to run OptoControl strategies.

SNAP-LCM4 Installation Guide 3-1

CHAPTER 3

Chapter 3

Jumpers and Communication

Setting Jumpers

The following table summarizes faceplate jumper settings. Shaded entries show default

settings.

Jumper(s) Description Position Setting

E/R EEPROM/RAM In Run from RAM

Out Run from

EEPROM

Auto Autoboot In Autoboot

enabled

Out Autoboot

disabled

X0 Communication In Binary

Out ASCII

X1 Boot Loader In Boot to kernel

Out Boot to loader

H0, H1 Host Port H0 H1 —

In In COM0

Out In COM1

In Out ARCNET

Out Out Ethernet

Baud 0–3 Baud Rate B0 B1 B2 B3 —

Out In In In 115.2 KBd

In Out In In 76.8 KBd

Out Out In In 57.6 KBd

In In Out In 38.4 KBd

Out In Out In 19.2 KBd

In Out Out In 9600 Bd

Out Out Out In 4800 Bd

In In In Out 2400 Bd

Out In In Out 1200 Bd

In Out In Out 600 Bd

Out Out In Out 300 Bd

Address

0–7 Address Bits Bit 0 In 1

Bit 1 In 2

Bit 2 In 4

Bit 3 In 8

Bit 4 In 1 6

Bit 5 In 3 2

Bit 6 In 6 4

Bit 7 In 128

Pin 1

JUMPERS AND COMMUNICATION

3-2 SNAP-LCM4 Installation Guide

Setting the Controller Address

Each Opto 22 controller connected to a host computer must have a unique address between

1 and 255 (1 and FF hexadecimal). Zero is not a valid address. The following table shows possible

addresses and their corresponding jumper settings. The factory default is 1. The most significant

bit is 7 and the least significant bit is 0.

Setting the Host Port

The controller host port jumpers H0 and H1 determine which port the controller’s default host

task will be started on. Because the host task is required for communication to any of Opto 22’s

programming or interface software, the default host port must be set to the port attached to the

host computer. The factory setting is COM0.

You can change the host port to COM1, as shown in the table

at right. However, in general it should not be used this way with

I/O, since COM1 was designed to communicate with I/O.

Address Jumpers

COM Port H0 H1

COM0 In In

COM1 Out In

ARCNET In Out

Ethernet Out Out

JUMPERS AND COMMUNICATION

SNAP-LCM4 Installation Guide 3-3

Setting the Host Port Baud Rate

The factory setting for the host port baud rate is 38.4

KBd, but baud rates from 300 Bd to 115.2 KBd are

selectable using jumpers B0 through B3. In general, it

is best to choose the fastest baud rate the host

computer and the controller will both support. Lower

baud rates may be necessary for long cable runs, in

high-noise environments, or for compatibility with

modems or other data transmission equipment.

The table at right shows jumper settings for available

baud rates. The shaded entry is the default setting.

Setting the Communication Mode

You can select ASCII or binary communication mode using

jumper X0. The factory default is binary, which is generally

faster than ASCII. ASCII is typically used only for compatibility

with modems or other data transmission equipment, or with

host devices that for some reason cannot support binary mode.

Setting the Boot Mode

The boot mode jumpers determine how the controller acts when it is turned on. The AUTO, E/R,

and X1 jumpers set the boot mode.

AUTO and E/R Jumpers

The AUTO jumper determines whether the controller automatically starts running your strategy

(autoboot) or waits until instructed to do so by the host computer. The E/R jumper determines

whether the strategy is executed from battery-backed RAM or from Flash ROM. The factory

settings are non-autoboot and execute from RAM.

There is no operational difference between execution from battery-backed RAM or ROM, except

that the SNAP-LCM4 has significantly more space available in RAM for program storage. The

drawback to execution from RAM is that the program is lost when the backup battery dies.

(Battery life typically exceeds three years.)

Before the controller will execute a program from ROM, you must have stored the program in

Flash ROM by selecting that download function in OptoControl. In general, it is best to wait until

program development is complete to use the autoboot feature or store the program in Flash ROM.

Baud Rate B0 B1 B2 B3

115.2 KBd Out In In In

76.8 KBd In Out In In

57.6 KBd Out Out In In

38.4 KBd In In Out In

19.2 KBd Out In Out In

9600 Bd In Out Out In

4800 Bd Out Out Out In

2400 Bd In In In Out

1200 Bd Out In In Out

600 Bd In Out In Out

300 Bd Out Out In Out

Communication Mode X0

Binary In

ASCII Out

JUMPERS AND COMMUNICATION

3-4 SNAP-LCM4 Installation Guide

X1 Jumper

Under normal conditions, you can update the controller firmware with the X1 jumper in the

default position (boot to kernel).

If the firmware in the controller has somehow been

corrupted, however, and the controller cannot execute its

full kernel properly, remove this jumper. Removing the X1

jumper sets the controller to “boot to loader” mode,

preparing it to receive the firmware download from the

loader.

The table at right shows Auto, E/R, and X1 jumper

settings. Default settings are shaded.

Configuring Serial Ports

The SNAP-LCM4 comes with four serial ports:

•COM0 is selectable as RS-232, RS-485 half-duplex (2-wire), or RS-485 full duplex (4-wire).

The default mode is RS-232 for connection to a PC. In RS-232 mode, COM0 also supports

RTS and DTR/DCD flow control for use with modems.

•COM1 is an Opto 22 remote I/O port (half-duplex RS-485 only).

•COM2 and COM3 are both configurable either as RS-232 or as half- or full-duplex RS-485.

The default mode is RS-232. In RS-232 mode, COM2 and COM3 support RTS flow control

only. Interrupt (IRQ) functionality is available in RS-485 2-wire mode only.

Since most systems use the default modes, it’s not normally necessary to configure serial ports.

However, if you need to change the serial port configuration, you must open the controller and

set configuration jumpers on the serial card inside. See page 5 for instructions.

In addition, all COM ports communicate using the following defaults:

If you need to change these defaults, use the OptoControl command Configure Port. See the

OptoControl Command Reference (Opto 22 form #725) for details on using the command.

Boot Mode Auto E/R X1

Autoboot enabled In

Autoboot disabled Out

Run from RAM In

Run from EEPROM Out

Boot to kernel In

Boot to loader Out

Baud rate = 115,200

Parity = None

Data Bits = 8

St op bit = 1

CTS = Disabled

JUMPERS AND COMMUNICATION

SNAP-LCM4 Installation Guide 3-5

Removing the Serial Card

Remove the faceplate thumbscrews and the faceplate. Carefully pull straight up on the serial

card (the one with the port connectors) to remove it.

The internal jumpers are shown in the diagram on the following page.

To change the serial port configuration, set jumpers on the serial card for each port as illustrated

in the following sections.

Configuring Port 0

The default mode for COM0 is RS-232, and the wiring

diagram is shown on page 2-4. Jumper groups JP3 and

CFG0 control COM0. Default jumper settings are shown in

the diagram at right. Note that only some of the jumpers

in JP3 control COM0; the jumpers shown grayed out are

included for reference only.

COM0 can also be configured for RS-485 two- or four-wire

or for use with a modem. Note that IRQ settings for COM0

cannot be configured.

Pin 1

JUMPERS AND COMMUNICATION

3-6 SNAP-LCM4 Installation Guide

COM0 RS-485 Configuration and Wiring

The following diagrams illustrate jumper settings and wiring for RS-485 two-wire and RS-485

four-wire. Again, the grayed-out jumpers are shown for reference only.

JUMPERS AND COMMUNICATION

SNAP-LCM4 Installation Guide 3-7

COM0 Modem Configuration and Wiring

In RS-232 mode, COM0 also supports RTS and DTR/DCD flow control for use with modems,

either with or without a carrier detect. Check your modem documentation for additional wiring

information, possible jumper configuration, and initialization setup. You may also want to read

Opto 22’s communication application notes, available on the Opto 22 Web site or through our

Bulletin Board Service. See page 1-2 for details.

The following diagrams illustrate wiring for modems. Use the COM0 default jumper settings for

modems (shown in the diagram on page 3-5).

Configuring Port 1

COM1 comes from the factory set up for

communicating with Opto 22 remote I/O. COM1 is a

two-wire RS-485 port only. It will not typically require

configuration unless you are using it with devices

that are not Opto 22 remote I/O.

CFG1 jumpers control COM1. Default jumper settings

are shown in the diagram at right.

Pin connections are shown in the following table:

Pin RS-485 2-wire

1TX/RX +

2TX/RX -

3COM

4IRQ +

5IRQ -

Wiring to a Modem without Carrier Detect Wiring to a Modem with Carrier Detect

COM1 Default Jumpers

JUMPERS AND COMMUNICATION

3-8 SNAP-LCM4 Installation Guide

Configuring Ports 2 and 3

The default for COM2 and COM3 is RS-232, but these ports can also be configured as RS-485

two-wire or four-wire. See page 3-9 for jumper settings to configure RS-232 or RS-485 mode.

Jumper functions and two-wire and four-wire jumper settings are shown below. Use CFG2

jumpers for COM2 and CFG3 jumpers for COM3.

Pin Connections for COM2 and COM3

Pin RS-232 RS-485 2-wire RS-485 4-wire

1 TX TX/RX + TX +

2 RX TX/RX - TX -

3 COM COM COM

4 RTS IRQ +* RX +

5 CTS IRQ -* RX -

TX = Transmit

RX = Receive

COM = Common Ground

RTS = Request to Send

CTS = Clear to Send

IRQ = Interrupt

*NOTE: For 2-wire, use pins 4 and 5 only if

you are using an interrupt (I RQ). The IRQ

function is supported in 2-wire mode only.

Use pins 4 and 5 for the IRQ wires.

RS-485 Jumper Functions

COM2 and COM3 Two-Wire and Four-Wire Jumper Settings

COM2 = CFG2

COM3 = CFG3

Pin 1

JUMPERS AND COMMUNICATION

SNAP-LCM4 Installation Guide 3-9

Setting the Mode for Port 2

As shown in the diagram at right, jumper groups JP3 and

JP4 control the mode for COM2. Only some of the jumpers

in each group control COM2, however. The grayed-out

jumpers are included for reference only.

NOTE: RS mode may be shown incorrectly on the board

itself. Follow the diagram to set the RS mode.

Setting the Mode for Port 3

For COM3, jumper group JP4 controls the mode for COM3.

The jumper settings are shown in the diagram at right. Only

some of the these jumpers control COM3, however;

grayed-out jumpers are included for reference only.

NOTE: RS mode may be shown incorrectly on the board

itself. Follow the diagram to set the RS mode.

JUMPERS AND COMMUNICATION

3-10 SNAP-LCM4 Installation Guide

Connecting the Controller to Remote I/O

Connections from a SNAP-LCM4 controller to a SNAP brain are shown on page 2-3. If you are

connecting the controller to Mistic I/O, follow the diagram below:

Downloading New Firmware

Occasionally you may need to download new firmware to the SNAP-LCM4 controller. To find out

what firmware release your controller has and update it if necessary, follow these steps:

1. Connect the PC running FactoryFloor to the controller.

•For a serial connection, COM 0 is usually used.

•If the controller has an ARCNET card, you can use ARCNET.

•If the controller has an M4SENET-100 card, you can use Ethernet if you have all of the

following:

– R4.0a or higher loader in the LCM4

– R4.1a or higher firmware in the LCM4

– OptoTerm version R4.1a or newer

2. Choose Start➞Programs➞Opto 22➞OptoUtilities➞OptoTerm.

JUMPERS AND COMMUNICATION

SNAP-LCM4 Installation Guide 3-11

3. In the OptoTerm main window, double-click the name of the controller. (If the controller is

not listed, add it, following directions in the OptoControl User’s Guide.)

In the Inspect Controller dialog box, look for the firmware version in the upper-right corner.

4. If you need to download new firmware, close the Inspect Controller dialog box. In the main

OptoTerm window, right-click the controller name and from the pop-up menu choose

Download➞Controller Kernel (or in older versions of OptoTerm, use Download Flash Files).

5. In the Open dialog box, locate your OptoKernel directory (C:\Opto22\OptoKrnl, by default).

Click Files of Type and choose the name of your controller from the list. When the correct

firmware file for your controller appears, double-click the file name.

If you do not have the correct firmware, contact Opto 22 Product Support. (See page 2.)

6. When the full path to the correct file appears in the Download File dialog box, click OK.

The firmware download begins, and a dialog box shows its progress.

7. When the download has finished, exit OptoTerm.

Controller firmware

version

JUMPERS AND COMMUNICATION

3-12 SNAP-LCM4 Installation Guide

SNAP-LCM4 Installation Guide 4-1

CHAPTER 4

Chapter 4

Troubleshooting

If you encounter a problem while installing or using the SNAP-LCM4 controller, check this section

for suggestions. See “For Help” on page 1-2 if you need to contact Opto 22 Product Support.

If you see this It means Try this

LINE LED is off. No power. Check wiring.

LINE LED is red

Controller re se ts.

Power may be out of

specification. Check the power supply. A minimum of 5.0 VDC

power is required. The allowed deviation for any

amount of time, no matter how short, is +/– 0.10

VDC.

STAT LED is off. Controller has an internal

problem. Call Opto 22 Product Support.

STAT LED blinks red. Firmware problem. Remove jumper X1 and cycle power to the

controller. If the STAT LED is solid, download new

firmware. If the STAT LED still blinks, call Opt o 22

Product Support .

BATT LED is red. Backup battery is low. Replace the backup battery.

RX LED is stuck on. Wiring polarity problem. If you’re using two-wire mode, try swapp ing the

TX+ and TX- wires . If you’re using four-wir e mode,

try swapping the RX+ and RX- wires.

Controller cannot transmit

to PC. Configuration jumpers were

changed without cycling

power.

Cycle power and retry transmission.

If using RS-232 port on SNAP-LCM4, make sure

pin 4 (R TS) and pin 5 (CTS) are jumpered.

No communication to host

PC and no TX/RX LEDs. Communication problems. Check the PC serial port.

No communication to host

PC. RX LED is on, but TX

LED is off.

Communication problems. Check controller address, baud rate, and

ASCII/binary settings. See “Set ting Jumpers” on

page 3-1.

No communication to host

PC. Both TX and RX LEDs

are on.

Communication problems. Try a slower baud rate.

TROUBLESHOOTING

4-2 SNAP-LCM4 Installation Guide

No communication to I/O.

TX LED is off while trying

to communicate .

Communication problems . Check that I/O port software is configured for

correct port.

If RX LEDs on I/O are off while trying to

communicate, check wire for loose connections,

shorts, or breakage.

If RX LEDs on I/O are on, chec k I/O address, baud

rate, and protocol settings in software.

Also check voltage at I/O units to make sure the

power supply voltage is within specs.

Digital output is not

working. 1. Bad module fuse.

2. Wrong module type or

incorrect wiring.

1. Replace fuse.

2. Make sure module is 5V logic. Match the out put

module with the load.

Digital input is not working. 1. Input device is not working

properly.

2. Wrong module type.

3. Voltage on input is not

compatible with module

volt age range.

4. I/O or brain may be bad.

1. Check input device wiring and power source.

Rewire, replace, or fix power source as needed.

2. Make sure module is 5V logic.

3. Change voltage to match module, or change

module to match field voltage.

4. See brain manual.

Analog output is not

working. 1. Output is wired incorr ectly.

2. Device is not properly

matched to module type.

3. I/O or brain may be bad.

1. Check wiring to output device.

2. Change voltage to match module or module to

match voltage.

3. Measure output with a multimeter.

Analog input is not

working. 1. Voltage input device is

wired incorrectly.

2. Thermocouple has a

break.

3. RTD has open or incorr ect

wiring.

4. I/O or brain may be bad.

1. Check device and wiring. Connect voltage

source or curr ent source, depending on input type,

and use multimeter to see whether input is

functioning.

2. For a thermocouple, check for co ntinuity across

test points next to module.

3. For an RTD input, check resistance across test

points next to module.

4. Contac t Opt o 22 Product Support if you find the

following:

–If value in software does not change with input

when testing input voltage or current with

multimeter

–If thermocouple has continuity across test points

–If resist ance across test point s is about 100 ohms

for RTD input.

If you see this It means Try this

SNAP-LCM4 Installation Guide A-1

APPENDIX

Appendix A

Appendix: Specifications

Specification Table

Item Specification

CPU 32-bit Moto ro la pr o ces s o r

IEEE floating-point math co-processor

CPU clock frequency 33 MHz

Memory

RAM

Flash EEPROM 4 MB with battery backup, for user programs and data, not expandable

2 MB for controller firmware and user programs, not expandable

RAM/clock battery 3.6-volt lithium, non-rechargeable

I/O Opto 22 remote I/O using RS-485, Ethernet I/O, ARCNET I/O

Communication, base unit

COM 0:

jumper selectable as RS-232 or RS-485, 2-wire or 4-wire. Modem

control signals are presen t for RS-232 (R TS, CTS, DTR, DCD, and R). Pull-up,

pull-down, and termination are jumper selectable for RS-485 operation,

allowing multidrop operation.

COM 1:

dedicated Opto 22 remote I/O port (2-wire RS-485 with interrupt

capability)

COM 2 and COM 3:

jumper selectable RS-232 or RS-485. RS-232 signals

include TX, RX, R TS, and CTS. RS-485 is either 2-wire or 4-wire, with

selectable termination and biasing.

Note:

All ports use low-noise slew-rate-limited drivers and are transient

protected to 400 W.

Real-time clock Clock/calendar, Epson 64613 with battery backup. Y2K compliant

Power requirements

(processor only; does not

include expansion cards) )

5 VDC ± 0.1 VDC at 1 A (maximum)

Typical operating temperature 0

C to 70

Storage temperature -40

C to 85

Humidity 5% to 95% relative humidity, non-condensing

Software FactoryFloor (OptoControl, OptoDisplay, OptoServer, and OptoConnect) and

Classic softwar e (Cyrano, Mistic MMI, and MDS)

Hard system monitors

(including watchdog timer and

volt age monitor

Detect main power supply opera tion and proper microprocessor operat ion

Soft system monitors Program/data cor ruption

Host and I/O communication

A-2 SNAP-LCM4 Installation Guide

LED Descriptions

The SNAP-LCM4 includes the following LEDs:

BATT

—The BATT LED is normally green. If it is red, the

backup battery is low and should be replaced.

LINE

—The LINE LED is normally green. If it is off, the

controller is not receiving power. If the LED is red, power is

outside specifications.

STAT—The STAT LED is normally green. If it blinks red or is

off, see Chapter 4—Troubleshooting.

— Each communication port has a TX LED, which is on

whenever the controller is actively transmitting data through

that port.

— Each communication port also has an RX LED. It is on

whenever the controller is actively receiving data through that port.

SNAP-LCM4 Installation Guide A-3

Dimensional Drawings and Mounting Diagrams

The following diagrams show dimensions for the SNAP-LCM4:

Top View

Side A View

A-4 SNAP-LCM4 Installation Guide

DIN-Rail Mounting

The SNAP-LCM4 can be panel-mounted or mounted on a DIN rail that you supply. DIN-rail

mounting requires a DIN clip package, part number SNAP-LCM4DIN (not included). The following

diagram shows a side view of the SNAP-LCM4 as mounted on a DIN rail:

1. Use two screws on each side of the SNAP-LCM4 to attach the controller to the DIN clip:

2. Snap both clips to the DIN rail.

Side B View

SNAP-LCM4 Installation Guide A-5

Cable Recommendations

Ethernet

For Ethernet communications, use Category 5 UTP (unshielded twisted pair) cable.

Serial

For serial communications, Opto 22 recommends the following cables for use with the

SNAP-LCM4. Although you can use other cables, keep in mind that low capacitance (less than

15pF/ft.) is important for high-speed digital communication links. The cables listed below are all

24-gauge, 7x32 stranded, with 100-ohm nominal impedance and a capacitance of 12.5 pF/ft.

It is recommended that you choose a cable with one more pair of wires than your application

requires. Use one of the extra wires, rather than the shield, for the common.

Two-Pair:

•Belden P/N 8102 (with overall shield)

•Belden P/N 9729 (individually shielded)

•Belden P/N 8162 (individually shielded with overall shield)

•Manhattan P/N M3475 (individually shielded with overall shield)

•Manhattan P/N M39249 (individually shielded with overall shield)

Three-Pair:

•Belden P/N 8103 (with overall shield)

•Belden P/N 9730 (individually shielded)

•Belden P/N 8163 (individually shielded with overall shield)

•Manhattan P/N M4376 (individually shielded with overall shield)

•Manhattan P/N M39250 (individually shielded with overall shield)

Four-Pair:

•Belden P/N 8104 (with overall shield)

•Belden P/N 9728 (individually shielded)

•Belden P/N 8164 (individually shielded with overall shield)

•Manhattan P/N M3477 (individually shielded with overall shield)

•Manhattan P/N M39251 (individually shielded with overall shield)

A-6 SNAP-LCM4 Installation Guide

Power Supply Recommendations

The power supply used for the SNAP-LCM4 controller should not be used to supply any other

equipment. Field devices must not be supplied by the same power supply used for the controller,

as the optical isolation of the I/O modules would be bypassed and voltage fluctuations to the

controller might cause controller resets.

Opto 22 recommends that the SNAP-LCM4 be powered with an Opto 22 SNAP-PS5 or

SNAP-PS5-24 power supply. The controller requires only 5 VDC. The total amount of current

required depends upon the expansion cards installed (see the table on page 1-6); the controller

itself requires 1.0 amp.

Third-Party Power Supply Vendors

If you are not using an Opto 22 power supply, use only good quality power supplies that offer

tight voltage regulation. Opto 22 recommends a linear supply with adequate current ratings for

the load. The following vendors carry suitable third-party power supplies:

ELPAC Electronics Inc.

1562 Reynolds Avenue

Irvine, CA 92614

Phone: 949-476-6070

Fax: 949-476-6080

E-mail: sales@elpac.com

Web site: www.elpac.com

Lambda Electronics

515 Broadhollow Road

Melville, NY 11747

Phone: 800-LAMBDA-4

Web site: www.lambdapower.com

Power-One

740 Calle Plano

Camarillo, CA 93012-8583

Phone: 805-987-8741

Web site: www.power-one.com

SOLA

199 Scott Swamp Road

Farmington, CT 06034

Phone: 800-377-4384

Web site: www.sola-hevi-duty.com