Allen-Bradley POINT I/O 1734-232ASC Bedienungsanleitung

POINT I/O RS-232

ASCII Module

1734-232ASC

User Manual

Spare Allen-Bradley Parts

Important User Information

Because of the variety of uses for the products described in this

publication, those responsible for the application and use of these

products must satisfy themselves that all necessary steps have been

taken to assure that each application and use meets all performance

and safety requirements, including any applicable laws, regulations,

codes and standards. In no event will Allen-Bradley be responsible or

liable for indirect or consequential damage resulting from the use or

application of these products.

Any illustrations, charts, sample programs, and layout examples

shown in this publication are intended solely for purposes of

example. Since there are many variables and requirements associated

with any particular installation, Allen-Bradley does not assume

responsibility or liability (to include intellectual property liability) for

actual use based upon the examples shown in this publication.

Allen-Bradley publication SGI-1.1, Safety Guidelines for the

Application, Installation and Maintenance of Solid-State Control

(available from your local Allen-Bradley office), describes some

important differences between solid-state equipment and

electromechanical devices that should be taken into consideration

when applying products such as those described in this publication.

Reproduction of the contents of this copyrighted publication, in whole

or part, without written permission of Rockwell Automation, is

prohibited.

Throughout this publication, notes may be used to make you aware of

safety considerations. The following annotations and their

accompanying statements help you to identify a potential hazard,

avoid a potential hazard, and recognize the consequences of a

potential hazard:

WARNING

Identifies information about practices or

circumstances that can cause an explosion in a

hazardous environment, which may lead to personal

injury or death, property damage, or economic loss.

ATTENTION

Identifies information about practices or

circumstances that can lead to personal injury or

death, property damage, or economic loss.

IMPORTANT Identifies information that is critical for successful

application and understanding of the product.

Rockwell Automation

Support

Before you contact Rockwell Automation for technical assistance, we

suggest you please review the troubleshooting information contained

in this publication first.

If the problem persists, call your local Rockwell Automation

representative or contact Rockwell Automation in one of the

following ways:

Your Questions or Comments on this Manual

If you find a problem with this manual, please notify us of it on the

enclosed How Are We Doing form.

Phone United

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Outside United

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You can access the phone number for your

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2. Click on Product Support

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1Publication 1734-UM009A-EN-P - June 2002

Preface

Purpose of This Manual

This manual describes how to install, configure, and troubleshoot

your POINT I/O RS-232 ASCII module.

Who Should Use

This Manual

You must be able to use RSNetWorx for DeviceNet software or similar

configuration software to set this module. You must have the

capability to download and use Electronic Data Sheet (EDS) files.

We assume you know how to do this in this manual. If you do not,

refer to your software user manuals or online help before attempting

to use this module.

For Information on See

Chapter/

Appendix

Installing the RS-232 ASCII Module 1

Configuring Your RS-232 ASCII Module 2

Diagnostics 3

Specifications A

Spare Allen-Bradley Parts

Publication 1734-UM009A-EN-P - June 2002

Preface 2

Related Products and

Documentation

The following table lists related POINT I/O products and

documentation.

Catalog Number Description Related Publications

Communication

Adapter

DeviceNet Adapter (Cat. No. 1734-ADN) Installation Instructions 1734-IN007

Communication

Interface

DeviceNet Interface (Cat. No. 1734-PDN) Installation Instructions 1734-IN057

1734D Series 1734D Series 24V dc 8 In/8 Out Combo Module (Cat. No. 1734D-IB8XOB8E,

-IB8XOB8ES)

Installation Instructions 1734-5.20

1734D Series 24V dc 8 In/8 N.O. Relay Combo Module (Cat. No.

1734D-IB8XOW8, -IB8XOW8S)

Installation Instructions 1734-5.21

1734D Series 120V ac 8 In/8 Out Combo Module (Cat. No. 1734D-IA8XOA8,

-IA8XOA8S)

Installation Instructions 1734-5.22

1734D Series 120V ac 8 In/8 N.O. Relay Combo Module (Cat. No.

1734D-IA8XOW8, -IA8XOW8S)

Installation Instructions 1734-5.23

Wiring Base

Assemblies

Wiring Base Assembly with 8 Screw-Clamp or Spring-Clamp Removable

Terminal Blocks (Cat Nos. 1734-TB, -TBS)

Installation Instructions 1734-IN511

Wiring Base Assembly with 12 Screw-Clamp or Spring-Clamp Removable

Terminal Blocks (Cat Nos. 1734-TB3, -TB3S)

Installation Instructions 1734-IN013

AC Modules 120V ac 2 Input Module (Cat. No. 1734-IA2) Installation Instructions 1734-IN010

120/220V ac 2 Output Module (Cat. No. 1734-OA2) Installation Instructions 1734-IN009

220V ac 2 Input Module (Cat. No. 1734-IM2) Installation Instructions 1734-IN008

DC Modules 24V dc 2 Input Sink Module (Cat. No. 1734-IB2) Installation Instructions 1734-IN051

24V dc 4 Input Sink Module (Cat. No. 1734-IB4) Installation Instructions 1734-IN051

24V dc 2 Input Source Module (Cat. No. 1734-IV2) Installation Instructions 1734-IN052

24V dc 4 Input Source Module (Cat. No. 1734-IV4) Installation Instructions 1734-IN052

24V dc Electronically Protected 2 Point Output Module (Cat. No.

1734-OB2E)

Installation Instructions 1734-IN056

24V dc Electronically Protected 4 Point Output Module (Cat. No. 1734-0B4E) Installation Instructions 1734-IN056

Analog Modules 24V dc Analog 2 Current Input Module (Cat. No. 1734-IE2C) Installation Instructions 1734-IN053

24Vdc Analog 2 Current Output Module (Cat. No. 1734-OE2C) Installation Instructions 1734-IN054

24V dc Analog 2 Voltage Input Module (Cat. No. 1734-IE2V) Installation Instructions 1734-IN001

24Vdc Analog 2 Voltage Output Module (Cat. No. 1734-OE2V) Installation Instructions 1734-IN002

RTD Module RTD Input Module (Cat. No. 1734-IR2) Installation Instructions 1734-IN012

Thermocouple

Module

Isolated Thermocouple Input Module (Cat. No. 1734-IT2I) Installation Instructions 1734-IN011

Publication 1734-UM009A-EN-P - June 2002

Preface 3

Counter Modules 24V Encoder/Counter Module (Cat. No. 1734-IK) Installation Instructions

User Manual

1734-IN006

1734-UM006

5V Encoder/Counter Module (Cat. No. 1734-IJ) Installation Instructions

User Manual

1734-IN005P

1734-UM006

24V dc Very High Speed Counter Module (Cat. No. 1734-VHSC24) Installation Instructions

User Manual

1734-IN003

1734-UM003

5V dc Very High Speed Counter Module (Cat. No. 1734-VHSC5) Installation Instructions

User Manual

1734-IN004

1734-UM003

Relay Module 24V dc, 120V ac, and 240V ac 2 Relay Sink/Source Output Module (Cat. No.

1734-OW2)

Installation Instructions 1734-IN055

Field Power

Distributor

Field Power Distributor (Cat. No. 1734-FPD) Installation Instructions 1734-IN059

Expansion Power

Supply

24V dc Expansion Power Supply (Cat. No. 1734-EP24DC) Installation Instructions 1734-IN058

Catalog Number Description Related Publications

Spare Allen-Bradley Parts

Publication 1734-UM009A-EN-P - June 2002

Preface 4

Notes:

iPublication 1734-UM009A-EN-P - June 2002

Table of Contents

Chapter 1

Installing the RS-232

ASCII Module

General Information on the 1734-232ASC Module. . . . . . . . 1-1

Installing the Mounting Base/ Wiring Base Assembly . . . . . 1-1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Installing an I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Installing the Removable Terminal Block . . . . . . . . . . . . . . 1-4

Removing a Mounting Base . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Wiring the 1734-232ASC Module . . . . . . . . . . . . . . . . . . . . 1-6

Cable Pinouts for Standard DB Connectors. . . . . . . . . . . . . 1-7

How to Install a Serial Network . . . . . . . . . . . . . . . . . . . . . 1-7

How to Read Serial Device Input Data from

the 1734-232ASC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

How to Write Serial Output Data to the 1734-232ASC . . . . . 1-9

Setting Up DeviceNet Communications . . . . . . . . . . . . . . . 1-10

Polled I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Cyclic and Change of State I/O. . . . . . . . . . . . . . . . . . . 1-11

Setting Up the DeviceNet I/O Connections . . . . . . . . . . 1-11

Setting Up the Connection Timer (EPR) . . . . . . . . . . . . 1-12

Operating Mode Selections . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Transmit Handshake vs. Transmit Immediate Option. . . 1-13

Produce Immediate vs. Master/Slave Handshake Option 1-14

Pad vs. No Pad Option. . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Chapter 2

Configuring Your RS-232

ASCII Module

About Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Configuration Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Adding the RS-232 ASCII Module to Your Network . . . . 2-4

Adding I/O Modules to Your Network . . . . . . . . . . . . . 2-5

Setting the RS-232 ASCII Module’s Parameters . . . . . . . . . . 2-6

Checking I/O Status and Viewing the EDS File. . . . . . . . . . 2-8

Configuration Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Parameter List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

POINT I/O Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Receiving Serial Data from the ASCII Device . . . . . . . . . 2-15

Setting Up the Receive Character Buffer Length. . . . . . . 2-15

Setting Up and Using Pad Mode . . . . . . . . . . . . . . . . . . 2-16

Setting Up and Using the Swap Bytes Mode . . . . . . . . . 2-17

Setting Up and Using Delimiter Operation . . . . . . . . . . 2-18

Receive String Data Type . . . . . . . . . . . . . . . . . . . . . . . 2-18

Setting Up the Scanner I/O Receive Size . . . . . . . . . . . . 2-19

Explicit Messages to Receive the Serial Data String . . . . 2-20

Status Byte Description . . . . . . . . . . . . . . . . . . . . . . . . 2-20

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Publication 1734-UM009A-EN-P - June 2002

Table of Contents ii

Transmitting Serial Data to the ASCII Device . . . . . . . . . . . 2-21

Setting Up the Transmit Character Buffer Length . . . . . . 2-22

Setting Up and Using the Transmit Delimiter. . . . . . . . . 2-22

Transmit String Data Assemblies . . . . . . . . . . . . . . . . . . 2-23

Transmit Handshake vs. Transmit Immediate Mode . . . . 2-24

Transmitting Serial Data . . . . . . . . . . . . . . . . . . . . . . . . 2-26

Setting Up the Scanner I/O Transmit Size . . . . . . . . . . . 2-26

Produce Immediate vs. Master/Slave Handshake Mode . 2-27

Explicit Messages to Transmit Serial Data String . . . . . . 2-28

Chapter 3

Diagnostics

Using the Indicators for Troubleshooting . . . . . . . . . . . . . . 3-1

Appendix A

Specifications

Specifications for the 1734-232ASC Module . . . . . . . . . . . . A-1

Appendix B

Using the 1734-232ASC Module

with the ControlLogix System

Application Examples

About These Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Serial Port Connector . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

EDS Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

DeviceNet Data Details . . . . . . . . . . . . . . . . . . . . . . . . B-3

Sending Data Through the 1734-232ASC Module. . . . . . B-3

Receiving Data From the 1734-232ASC Module . . . . . . . B-3

Reading Data from the 1734-232ASC Module into

ControlLogix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

Transmitting Data from ControlLogix Through the

1734-232ASC Module . . . . . . . . . . . . . . . . . . . . . . . . . . B-6

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