Allen-Bradley 1747-KE User manual

DH-485/RS-232C
Interface Module
Catalog Number 1747-KE
User Manual
AB Parts

Important User Information
Solid state equipment has operational characteristics differing from those of
electromechanical equipment. Safety Guidelines for the Application,
Installation and Maintenance of Solid State Controls, publication SGI-1.1,
available from your local Rockwell Automation sales office or online at
http://www.literature.rockwellautomation.com, describes some important
differences between solid state equipment and hard-wired electromechanical
devices. Because of this difference, and also because of the wide variety of
uses for solid state equipment, all persons responsible for applying this
equipment must satisfy themselves that each intended application of this
equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for
indirect or consequential damages resulting from the use or application of
this equipment.
The examples and diagrams in this manual are included solely for illustrative
purposes. Because of the many variables and requirements associated with
any particular installation, Rockwell Automation, Inc. cannot assume
responsibility or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to
use of information, circuits, equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without
written permission of Rockwell Automation, Inc., is prohibited.
Throughout this manual, when necessary, we use notes to make you aware
of safety considerations.
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.
IMPORTANT Identifies information that is critical for successful
application and understanding of the product.
ATTENTION Identifies information about practices or circumstances
that can lead to personal injury or death, property
damage, or economic loss. Attentions help you:
•identify a hazard.
•avoid a hazard.
•recognize the consequences.
SHOCK HAZARD Labels may be located on or inside the equipment (for
example, drive or motor) to alert people that dangerous
voltage may be present.
BURN HAZARD Labels may be located on or inside the equipment (for
example, drive or motor) to alert people that surfaces may
be dangerous temperatures.

Publication 1747-UM005B-EN-P - March 2006
Summary of Changes
The information below summarizes the changes to this manual since
the last printing.
To help you find new and updated information in this release of the
manual, we have included change bars as shown to the right of this
paragraph.
For See page
Updated method of ordering publications P-2
Updated battery location on circuit board 1-2, C-2
Revised JW1 jumper illustration 1-2, 1-4
Revised JW2 jumper illustration 1-2, 1-4
Revised JW4 jumper illustration 1-2, 1-4
Replaced APS with RSLinx software throughout
Updated information on configuring your SLC chassis 4-13
Updated information on configuring your DF1 driver with
RSLinx software
4-14
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Notes:

iPublication 1747-UM005B-EN-P - March 2006
Table of Contents
Preface
Who Should Use This Manual . . . . . . . . . . . . . . . . . . . . . . P-1
Purpose of This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . P-1
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . P-2
Terms and Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . P-2
Conventions Used in This Manual . . . . . . . . . . . . . . . . . . . P-3
Chapter 1
Overview
Interface Module Overview . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Jumper JW1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Jumper JW2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Jumper JW4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Use a Modem with Your Interface Module . . . . . . . . . . . . . 1-5
Use DF1 Protocol and Your Module. . . . . . . . . . . . . . . . . . 1-5
Typical Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Full-duplex (Point-to-point) . . . . . . . . . . . . . . . . . . . . . 1-6
Full-duplex (Network, Example 1) . . . . . . . . . . . . . . . . 1-6
Full-duplex (Network, Example 2) . . . . . . . . . . . . . . . . 1-7
Half-duplex (Local Mode). . . . . . . . . . . . . . . . . . . . . . . 1-8
Half-duplex (Remote Mode) . . . . . . . . . . . . . . . . . . . . . 1-9
Half-duplex (Slave-to-slave Communication) . . . . . . . . . 1-10
Chapter 2
Quick Start
Required Tools and Equipment . . . . . . . . . . . . . . . . . . . . . 2-1
Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Unpack the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Install the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Configure the Module . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Start-up the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Chapter 3
Communicate with the Interface
Module
DF1 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Full-duplex DF1 Protocol . . . . . . . . . . . . . . . . . . . . . . . 3-1
Half-duplex DF1 Protocol. . . . . . . . . . . . . . . . . . . . . . . 3-2
Communicate with DH-485 Devices. . . . . . . . . . . . . . . . . . 3-10
DH-485 Token Passing Devices . . . . . . . . . . . . . . . . . . 3-10
DH-485 Non-Token Passing Devices. . . . . . . . . . . . . . . 3-11
Communicate with a Modem. . . . . . . . . . . . . . . . . . . . . . . 3-11
Chapter 4
Installation and System
Configuration
European Union Directives Compliance . . . . . . . . . . . . . . . 4-1
EMC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Choose the Module’s Functionality. . . . . . . . . . . . . . . . . . . 4-2
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Add an Interface Module to Your System . . . . . . . . . . . 4-2
Replace a Series A Interface Module in Your System . . . 4-2
Set the Module’s Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Configure with an ASCII Terminal . . . . . . . . . . . . . . . . 4-4
Configure Through the Backplane . . . . . . . . . . . . . . . . 4-4
Verify CONFIG Port Configuration . . . . . . . . . . . . . . . . . . . 4-5
Verify DF1 Port Configuration . . . . . . . . . . . . . . . . . . . . . . 4-6
Install Your Module in an Open Slot . . . . . . . . . . . . . . . . . 4-7
Connect Cable to CONFIG or DF1 Ports. . . . . . . . . . . . . . . 4-8
Connect Cable to the DH-485 Port . . . . . . . . . . . . . . . . . . . 4-11
Configure Your SLC Chassis. . . . . . . . . . . . . . . . . . . . . . . . 4-13
Configure the DF1 Driver within RSLinx Software. . . . . . . . 4-14
Configure Your Module. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Complete the Installation of Your Module . . . . . . . . . . . . . 4-15
Chapter 5
Module Configuration Using an
ASCII Terminal
ASCII Terminal Configuration . . . . . . . . . . . . . . . . . . . . . . 5-2
Module Configuration with a Terminal Overview . . . . . . . . 5-3
Top Level Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Change Parameters for Menus 1 through 4 . . . . . . . . . . 5-4
CONFIG Port Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
CONFIG PORT Setup Parameters . . . . . . . . . . . . . . . . . 5-5
DF1 Port Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
DF1 Port Setup Parameters. . . . . . . . . . . . . . . . . . . . . . 5-6
DH-485 Port Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
DH-485 Port Setup Parameters . . . . . . . . . . . . . . . . . . . 5-7
DF1 Protocol Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
DF1 Full-duplex Setup Menu . . . . . . . . . . . . . . . . . . . . 5-8
DF1 Full-duplex Setup Parameters . . . . . . . . . . . . . . . . 5-9
DF1 Half-duplex Setup Menu . . . . . . . . . . . . . . . . . . . . 5-10
DF1 Half-duplex Setup Parameters . . . . . . . . . . . . . . . . 5-10
Display Parameters Menu . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Chapter 6
Module Configuration Using the
Backplane
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Configure the Interface Module from the SLC Processor . . . 6-2
Place the Module into Software Run Mode from
SLC Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Read the Module’s Configuration from the SLC Processor . . 6-5
Examine the SLC Processor’s Status Word. . . . . . . . . . . . . . 6-6
SLC Output Status Word to the Interface Module. . . . . . 6-6
SLC Input Status Word from the Interface Module . . . . . 6-6
Status Codes from the Module to the Processor. . . . . . . 6-7
Build the DF1 Configuration Packet . . . . . . . . . . . . . . . . . . 6-8
DF1 Port Setup Parameters. . . . . . . . . . . . . . . . . . . . . . 6-9

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Table of Contents iii
DF1 Full-duplex Setup Parameters . . . . . . . . . . . . . . . . 6-10
DF1 Half-duplex Setup Parameters . . . . . . . . . . . . . . . . 6-11
Build the DH-485 Configuration Packet . . . . . . . . . . . . . . . 6-12
DH-485 Port Setup Parameters . . . . . . . . . . . . . . . . . . . 6-12
Build the Modem Init String Configuration Packets . . . . . . . 6-13
Modem Init String for Characters 1 Through 14 . . . . . . . 6-14
Modem Init String for Characters 15 Through 28 . . . . . . 6-15
Use the Real Time Clock . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Establish a Data Echo Between the Interface Module and
the SLC Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
Reset the Interface Module from the SLC Processor. . . . . . . 6-18
Chapter 7
Interpret the LED Indicators
Interface Module Status Indicators . . . . . . . . . . . . . . . . . . . 7-1
Input Image Description . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Status Codes from the Module to the Processor . . . . . . . . . 7-3
SLC Fault Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Chapter 8
Application Examples
Basic Configuration Example Using the Backplane . . . . . . . 8-1
Parameter Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Parameter Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Configuration Results . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
Backplane Configuration User Program. . . . . . . . . . . . . 8-4
Configuration Data Table . . . . . . . . . . . . . . . . . . . . . . . 8-8
Supplementary Example Using the Backplane . . . . . . . . . . 8-9
Real Time Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Parameter Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Data Echo Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
RSLogix Software to SLC Network via Modem Example . . . 8-14
Configure the Module’s Serial Port . . . . . . . . . . . . . . . . 8-15
Configure the DF1 Modem Driver Using RSLinx 2.x or
Later. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16
Go Online using RSLogix 500 Software and RSLinx
Version 2.x and Later . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25
Appendix A
Specifications
Hardware Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Port Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Maximum Communication Distances . . . . . . . . . . . . . . A-3
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Appendix B
PLC-5 to SLC 500 Communications
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
PLC-5 Message Instruction . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Use the SLC 500 CIF File . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Use the PLC-5 Message Instruction with Word . . . . . . . . . . B-3
Use the PLC-5 Message Instruction with Byte . . . . . . . . . . . B-4
Appendix C
Lithium Battery Replacement,
Handling, and Disposal
Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Battery Handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Battery Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5
Appendix D
Interface Module Configuration
Worksheets
DF1 Full-duplex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2
DF1 Half-duplex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-3
Index

1Publication 1747-UM005B-EN-P - March 2006
Preface
Read this preface to familiarize yourself with the rest of the manual.
This preface covers the following topics.
•Who should use this manual
•The purpose of this manual
•Contents of this manual
•Terms and abbreviations
•Conventions used in this manual
Who Should Use This
Manual
Use this manual if you are responsible for designing, installing,
programming, or troubleshooting control systems that use
Allen-Bradley small logic controllers.
You should have a basic understanding of SLC 500 products, DF1
communications protocol, and DH-485 network communications. If
you do not, contact your local Allen-Bradley representative for
information on available training courses before using this product.
Purpose of This Manual
This manual is a reference guide for the DH-485/RS-232C Interface
Module. It describes the procedures you use to install and configure
your interface module for application with PLC and SLC controllers.
AB Parts

Publication 1747-UM005B-EN-P - March 2006
2 Preface
Related Documentation
The following documents contain additional information regarding
Rockwell Automation products.
Related Documentation
If you would like a manual, you can:
•download a free electronic version from the Internet at
www.literature.rockwellautomation.com.
•purchase a printed manual by contacting your local distributor
or Rockwell Automation representative.
Terms and Abbreviations
The following terms and abbreviations are specific to this product. For
a complete listing of Allen-Bradley terminology, refer to the
Allen-Bradley Industrial Automation Glossary, publication AG-7.1.
ASCII Terminal - an industrial terminal, workstation, or personal
computer with terminal mode software (such as PBASE or Windows
HyperTerminal) that communicates in alphanumeric mode.
Backplane - a printed circuit board, at the back of a chassis, that
provides electrical interconnection between the modules inserted into
the chassis.
DF1 - a serial communication protocol capable of
delimiting-messages, controlling message flow, detecting and
signalling errors, and retrying after errors are detected. See half- and
full-duplex.
DH-485 Link - Data Highway-485 link. An Allen-Bradley token-passing
baseband link for a local area network based on the RS-485 standard.
Full-duplex - a mode of operation for a point-to-point link with two
physical circuits, in which messages or transmission blocks can be
sent in both directions at the same time.
For Read This Document Document
Number
A guide to understanding and selecting SLC 500 products SLC 500 System Selection Guide 1747-SG001
A description on how to install and use your modular SLC 500
programmable controller
User Manual for Modular Hardware Style
Programmable Controllers
1747-UM011
A reference manual that contains status file data, instruction set, and
troubleshooting information
SLC 500 Instruction Set Reference Manual 1747-RM001
A glossary of industrial automation terms and abbreviations Allen-Bradley Industrial Automation Glossary AG-7.1