Allen-Bradley MicroLogix 1200 User manual

MicroLogix™ 1200
Programmable
Controllers
Bulletin 1762 Controllers and
Expansion I/O
User Manual
Allen-Bradley PLCs

Important User Information
Because of the variety of uses for the products described in this
publication, those responsible for the application and use of this
control equipment 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.
The illustrations, charts, sample programs and layout examples shown
in this guide are intended solely for purposes of example. Since there
are many variables and requirements associated with any particular
installation, Rockwell Automation does not assume responsibility or
liability (to include intellectual property liability) for actual use based
upon the examples shown in this publication.
Rockwell Automation publication SGI-1.1, Safety Guidelines for the
Application, Installation and Maintenance of Solid-State Control
(available from your local Rockwell Automation 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 manual we use notes to make you aware of safety
considerations:
Attention statements help you to:
•identify a hazard
•avoid a hazard
•recognize the consequences
MicroLogix, ControlFlash, RSLogix, and RSLinx are trademarks of Rockwell Automation.
PLC-5 is a registered trademark of Rockwell Automation.
Belden is a trademark of Belden, Inc.
DeviceNet is a trademark of The Open DeviceNet Vendors Association.
Modbus is a trademark of Modicon, Inc.
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.

iii Publication 1762-UM001B-EN-P
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.
The table below lists the sections that document new features and
additional or updated information about existing features.
For this information See
1762-L24BXB, 1762-L40BXB controllers
description
wiring
specifications
page 1-2
pages 3-8 and 3-8, 3-12 through 3-15
Appendix A
Expansion I/O
new module descriptions
wiring diagrams for new modules
expanded specifications
page 1-3
pages 3-17 through 3-20, and 3-24
Appendix A
Analog expansion I/O module error codes Appendix C
Simplified controller wiring diagrams Chapter 3
Expanded system loading and heat dissipation
worksheets to cover BXB controllers and new
I/O modules
Appendix F
ASCII protocol page E-17
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Publication 1762-UM001B-EN-P
Summary of Changes iv

iPublication 1762-UM001B-EN-P
Table of Contents
Table of Contents Preface
Who Should Use this Manual. . . . . . . . . . . . . . . . . . . . . . . P-1
Purpose of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . P-2
Common Techniques Used in this Manual . . . . . . . . . . . . . P-3
Rockwell Automation Support . . . . . . . . . . . . . . . . . . . . . . P-3
Local Product Support . . . . . . . . . . . . . . . . . . . . . . . . . P-3
Technical Product Assistance . . . . . . . . . . . . . . . . . . . . P-3
Your Questions or Comments on this Manual . . . . . . . . P-3
Chapter 1
Hardware Overview
Hardware Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Component Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
MicroLogix 1200 Memory Module and/or
Real-Time Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1762 Expansion I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Communication Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Communication Options . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Chapter 2
Installing Your Controller
Agency Certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Compliance to European Union Directives . . . . . . . . . . . . . 2-2
EMC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Low Voltage Directive . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Installation Considerations. . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Hazardous Location Considerations . . . . . . . . . . . . . . . 2-4
Disconnecting Main Power. . . . . . . . . . . . . . . . . . . . . . 2-5
Safety Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Power Distribution. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Periodic Tests of Master Control Relay Circuit . . . . . . . . 2-6
Power Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Isolation Transformers . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Power Supply Inrush . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Loss of Power Source. . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Input States on Power Down . . . . . . . . . . . . . . . . . . . . 2-7
Other Types of Line Conditions . . . . . . . . . . . . . . . . . . 2-7
Preventing Excessive Heat. . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Master Control Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Using Emergency-Stop Switches . . . . . . . . . . . . . . . . . . 2-9
Schematic (Using IEC Symbols) . . . . . . . . . . . . . . . . . . 2-10
Schematic (Using ANSI/CSA Symbols). . . . . . . . . . . . . . 2-11
Installing a Memory Module and/or Real-Time Clock . . . . . 2-12
Controller Mounting Dimensions . . . . . . . . . . . . . . . . . . . . 2-13
Controller and Expansion I/O Spacing . . . . . . . . . . . . . . . . 2-13
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Mounting the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
DIN Rail Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
1762 Expansion I/O Dimensions . . . . . . . . . . . . . . . . . . . . 2-17
Mounting 1762 Expansion I/O . . . . . . . . . . . . . . . . . . . . . . 2-17
DIN Rail Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Connecting Expansion I/O . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Chapter 3
Wiring Your Controller
Wiring Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Wiring Recommendation . . . . . . . . . . . . . . . . . . . . . . . 3-1
Using Surge Suppressors . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Recommended Surge Suppressors . . . . . . . . . . . . . . . . 3-5
Grounding the Controller . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Terminal Block Layouts . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Terminal Groupings . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Sinking and Sourcing Wiring Diagrams . . . . . . . . . . . . . . . 3-10
1762-L24AWA, 1762-L24BWA and 1762-L24BXB Wiring
Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
1762-L40AWA, 1762-L40BWA and 1762-L40BXB Wiring
Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Controller I/O Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Minimizing Electrical Noise. . . . . . . . . . . . . . . . . . . . . . 3-16
Expansion I/O Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Discrete Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . 3-16
Analog Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Chapter 4
Communication Connections
Default Communication Configuration . . . . . . . . . . . . . . . . 4-1
Using the Communications Toggle Push Button . . . . . . . . . 4-2
Connecting to the RS-232 Port . . . . . . . . . . . . . . . . . . . . . . 4-2
Making a DF1 Point-to-Point Connection . . . . . . . . . . . 4-3
Using a Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Isolated Modem Connection. . . . . . . . . . . . . . . . . . . . . 4-4
Connecting to a DF1 Half-Duplex Network. . . . . . . . . . 4-6
Connecting to a DH485 Network . . . . . . . . . . . . . . . . . . . . 4-7
Recommended Tools . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
DH485 Communication Cable. . . . . . . . . . . . . . . . . . . . 4-8
Connecting the Communication Cable to the DH485
Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Grounding and Terminating the DH485 Network . . . . . 4-10
Connecting the AIC+. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Cable Selection Guide . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

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Table of Contents iii
Recommended User-Supplied Components. . . . . . . . . . 4-14
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Installing and Attaching the AIC+ . . . . . . . . . . . . . . . . . 4-15
Powering the AIC+. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
DeviceNet Communications. . . . . . . . . . . . . . . . . . . . . . . . 4-17
Cable Selection Guide . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Chapter 5
Using Trim Pots
Trim Pot Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Trim Pot Information Function File . . . . . . . . . . . . . . . . 5-1
Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Chapter 6
Using Real-Time Clock and
Memory Modules
Real-Time Clock Operation . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Removal/Insertion Under Power. . . . . . . . . . . . . . . . . . 6-1
Writing Data to the Real-Time Clock. . . . . . . . . . . . . . . 6-2
RTC Battery Operation . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Memory Module Operation . . . . . . . . . . . . . . . . . . . . . . . . 6-3
User Program and Data Back-up. . . . . . . . . . . . . . . . . . 6-3
Program Compare . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Data File Download Protection. . . . . . . . . . . . . . . . . . . 6-4
Memory Module Write Protection . . . . . . . . . . . . . . . . . 6-4
Removal/Insertion Under Power. . . . . . . . . . . . . . . . . . 6-4
Appendix A
Specifications
Controller Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Expansion I/O Specifications . . . . . . . . . . . . . . . . . . . . . . . A-7
Discrete I/O Modules. . . . . . . . . . . . . . . . . . . . . . . . . . A-7
Analog Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11
Controller Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . A-14
Expansion I/O Dimensions . . . . . . . . . . . . . . . . . . . . . . . A-14
Appendix B
Replacement Parts
MicroLogix 1200 Replacement Kits. . . . . . . . . . . . . . . . . . . B-1
Controllers Replacement Doors . . . . . . . . . . . . . . . . . . B-1
Controller Replacement Door Labels. . . . . . . . . . . . . . . B-1
Controller Replacement DIN Latches. . . . . . . . . . . . . . . B-1
Controller 40-Point Replacement Terminal Blocks . . . . . B-1
Controller 24-Point Terminal Doors . . . . . . . . . . . . . . . B-2
Controller 40-Point Terminal Doors . . . . . . . . . . . . . . . B-2
1762 Expansion I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Expansion I/O Replacement Doors. . . . . . . . . . . . . . . . B-2
Expansion I/O Replacement DIN Latches . . . . . . . . . . . B-2
Expansion I/O Replacement Door Labels . . . . . . . . . . . B-2
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Publication 1762-UM001B-EN-P
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Appendix C
Troubleshooting Your System
Understanding the Controller LED Status . . . . . . . . . . . . . . C-1
Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Controller Error Recovery Model . . . . . . . . . . . . . . . . . . . . C-3
Analog Expansion I/O Diagnostics and Troubleshooting. . . C-4
Module Operation and Channel Operation . . . . . . . . . . C-4
Power-up Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . C-4
Critical and Non-Critical Errors . . . . . . . . . . . . . . . . . . . C-4
Module Error Definition Table . . . . . . . . . . . . . . . . . . . C-5
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6
Calling Rockwell Automation for Assistance . . . . . . . . . . . . C-7
Appendix D
Using Control Flash to Upgrade
Your Operating System
Preparing for Upgrade. . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
Install ControlFlash Software . . . . . . . . . . . . . . . . . . . . D-1
Prepare the Controller for Updating . . . . . . . . . . . . . . . D-1
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2
Missing/Corrupt OS LED Pattern . . . . . . . . . . . . . . . . . . . . D-2
Appendix E
Understanding the
Communication Protocols
RS-232 Communication Interface . . . . . . . . . . . . . . . . . . . . E-1
DF1 Full-Duplex Protocol . . . . . . . . . . . . . . . . . . . . . . . . . E-1
DF1 Full-Duplex Operation . . . . . . . . . . . . . . . . . . . . . E-2
DF1 Half-Duplex Protocol . . . . . . . . . . . . . . . . . . . . . . . . . E-3
DF1 Half-Duplex Operation . . . . . . . . . . . . . . . . . . . . . E-3
Considerations When Communicating as a
DF1 Slave on a Multi-drop Link . . . . . . . . . . . . . . . . . . E-5
Using Modems with MicroLogix 1200
Programmable Controllers . . . . . . . . . . . . . . . . . . . . . . E-6
DH485 Communication Protocol . . . . . . . . . . . . . . . . . . . . E-8
DH485 Network Description. . . . . . . . . . . . . . . . . . . . . E-8
DH485 Token Rotation. . . . . . . . . . . . . . . . . . . . . . . . . E-8
DH485 Configuration Parameters . . . . . . . . . . . . . . . . . E-9
Devices that use the DH485 Network . . . . . . . . . . . . . . E-9
Important DH485 Network Planning Considerations . . E-10
Example DH485 Connections . . . . . . . . . . . . . . . . . . . E-13
Modbus Communication Protocol . . . . . . . . . . . . . . . . . . E-16
ASCII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-17

Publication 1762-UM001B-EN-P
Table of Contents v
Appendix F
System Loading and Heat
Dissipation
System Loading Limitations . . . . . . . . . . . . . . . . . . . . . . . . F-1
System Loading Example Calculations
(24-Point Controller) . . . . . . . . . . . . . . . . . . . . . . . . . . F-1
System Loading Worksheet . . . . . . . . . . . . . . . . . . . . . . . . F-3
Current Loading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-3
System Loading Example Calculations
(40-Point Controller) . . . . . . . . . . . . . . . . . . . . . . . . . . F-5
System Loading Worksheet . . . . . . . . . . . . . . . . . . . . . . . . F-7
Calculating Heat Dissipation . . . . . . . . . . . . . . . . . . . . . . F-10
Glossary
Index
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Publication 1762-UM001B-EN-P
Table of Contents vi

P-1 Publication1762-UM001B-EN-P
Preface
Read this preface to familiarize yourself with the rest of the manual. It
provides information concerning:
•who should use this manual
•the purpose of this manual
•related documentation
•conventions used in this manual
•Rockwell Automation support
Who Should Use this
Manual
Use this manual if you are responsible for designing, installing,
programming, or troubleshooting control systems that use MicroLogix™
1200 controllers.
You should have a basic understanding of electrical circuitry and
familiarity with relay logic. If you do not, obtain the proper training
before using this product.
Purpose of this Manual
This manual is a reference guide for MicroLogix 1200 controllers and
expansion I/O. It describes the procedures you use to install, wire, and
troubleshoot your controller. This manual:
•explains how to install and wire your controllers
•gives you an overview of the MicroLogix 1200 controller system
Refer to Publication 1762-RM001C-EN-P, MicroLogix 1200 and 1500
Programmable Controllers Instruction Set Reference Manual for the
MicroLogix 1200 and 1500 instruction set and for application examples to
show the instruction set in use. Refer to your RSLogix 500 programming
software user documentation for more information on programming your
MicroLogix 1200 controller.
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Publication 1762-UM001B-EN-P
P-2
Related Documentation
The following documents contain additional information concerning
Rockwell Automation products. To obtain a copy, contact your local
Rockwell Automation office or distributor.
For Read this Document Document Number
Information on understanding and applying micro controllers. MicroMentor 1761-MMB
Information on the MicroLogix 1200 Controllers instruction set. MicroLogix 1200 and 1500
Programmable Controllers Instruction
Set Reference Manual
1762-RM001C-EN-P
Information on mounting and wiring the MicroLogix 1200
Controllers, including a mounting template for easy installation.
MicroLogix 1200 Programmable
Controllers Installation Instructions
1762-IN006C-MU-P
A description on how to install and connect an AIC+. This manual
also contains information on network wiring.
Advanced Interface Converter (AIC+)
User Manual
1761-6.4
Information on how to install, configure, and commission a DNI. DeviceNet™ Interface User Manual 1761-6.5
Information on DF1 open protocol. DF1 Protocol and Command Set
Reference Manual
1770-6.5.16
Information about the Modbus Slave protocol. Modbus Protocol Specifications Available from Schneider
Automation, Inc.
In-depth information on grounding and wiring Allen-Bradley
programmable controllers.
Allen-Bradley Programmable
Controller Grounding and Wiring
Guidelines
1770-4.1
A description of important differences between solid-state
programmable controller products and hard-wired electromechanical
devices.
Application Considerations for
Solid-State Controls
SGI-1.1
An article on wire sizes and types for grounding electrical
equipment.
National Electrical Code - Published by the National Fire Protection
Association of Boston, MA.
A complete listing of current documentation, including ordering
instructions. Also indicates whether the documents are available on
CD-ROM or in multi-languages.
Allen-Bradley Publication Index SD499
A glossary of industrial automation terms and abbreviations. Allen-Bradley Industrial Automation
Glossary
AG-7.1

Publication 1762-UM001B-EN-P
P-3
Common Techniques
Used in this Manual
The following conventions are used throughout this manual:
•Bulleted lists such as this one provide information, not procedural
steps.
•Numbered lists provide sequential steps or hierarchical information.
•Italic type is used for emphasis.
Rockwell Automation
Support
Rockwell Automation offers support services worldwide, with over 75
Sales/Support Offices, 512 authorized Distributors and 260 authorized
Systems Integrators located throughout the United States alone, plus
Rockwell Automation representatives in every major country in the world.
Local Product Support
Contact your local Rockwell Automation representative for:
•sales and order support
•product technical training
•warranty support
•support service agreements
Technical Product Assistance
If you need to contact Rockwell Automation for technical assistance,
please review the information in the Troubleshooting appendix first. Then
call your local Rockwell Automation representative.
Your Questions or Comments on this Manual
If you find a problem with this manual, or you have any suggestions for
how this manual could be made more useful to you, please contact us at
the address below:
Rockwell Automation
Control and Information Group
Technical Communication, Dept. A602V
P.O. Box 2086
Milwaukee, WI 53201-2086
or visit our internet page at: http://www.ab.com/micrologix
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Publication 1762-UM001B-EN-P
P-4

1Publication 1762-UM001B-EN-P
Chapter 1
Hardware Overview
Hardware Features
The Bulletin 1762, MicroLogix 1200 programmable controller contains a
power supply, input and output circuits, and a processor. The controller is
available in 24 I/O and 40 I/O configurations.
The hardware features of the controller are:
Table 1.1 Hardware Features
Feature Description Feature Description
1 Terminal Blocks
(Removable Terminal Blocks
1762-L40xWA and
1762-L40BXB, only)
7 Terminal Doors and Labels
2 Bus Connector Interface to
Expansion I/O
8 Trim Pots
3 Input LEDs 9 Communications Toggle Push
Button
4OutputLEDs 10
Memory Module Port Cover(1) -or-
Memory Module and/or
Real-Time Clock(2)
(1) Shipped with controller.
(2) Optional equipment.
5 Communication Port/
Channel 0
11 DIN Rail Latches
6StatusLEDs
1
2
3
4
5
6
7
7
9
8
10
11
COM
0
1
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Publication 1762-UM001B-EN-P
1-2 Hardware Overview
Component Descriptions MicroLogix 1200 Memory Module and/or Real-Time Clock
The controller is shipped with a memory module port cover in place. You
can order a memory module, real-time clock, or memory module and
real-time clock as an accessory.
Table 1.2 Controller Input Power and Embedded I/O
Catalog
Number
Description
Input Power Inputs Outputs
1762-L24AWA 120/240V ac (14) 120V ac (10) relay
1762-L24BWA 120/240V ac (10) 24V dc
(4) fast 24V dc
(10) relay
1762-L24BXB 24V dc (10) 24V dc
(4) fast 24V dc
(5) relay, (4) 24V dc FET
(1) high-speed 24V dc FET
1762-L40AWA 120/240V ac (24) 120V ac (16) relay
1762-L40BWA 120/240V ac (20) 24V dc
(4) fast 24V dc
(16) relay
1762-L40BXB 24V dc (20) 24V dc
(4) fast 24V dc
(8) relay, (7) 24V dc FET
(1) high-speed 24V dc FET
Table 1.3 Memory Module and/or Real-Time Clock
Catalog Number Descriptions
1762-MM1 Memory Module only
1762-RTC Real-Time Clock only
1762-MM1RTC Memory Module and Real-Time Clock

Publication 1762-UM001B-EN-P
Hardware Overview 1-3
1762 Expansion I/O
1762 expansion I/O can be connected to the MicroLogix 1200 controller,
as shown below.
NOTE A maximum of six I/O modules, in certain combinations,
may be connected to a controller. See Appendix F System
Loading and Heat Dissipation to determine valid
combinations.
1762 Expansion I/O 1762 Expansion I/O Connected to MicroLogix 1200 Controller
Table 1.4 Expansion I/O
Catalog Number Descriptions
1762-IA8 8-Point 120V ac Input
1762-IQ8 8-Point Sink/Source 24V dc Input
1762-IQ16 16-Point Sink/Source 24V dc Input
1762-OA8 8-Point AC Triac Output
1762-OB8 8-Point Sourcing 24V dc Output
1762-OB16 16-Point Sourcing 24V dc Output
1762-OW8 8-Point AC/DC Relay Output
1762-OW16 16-Point AC/DC Relay Output
1762-IF2OF2 2-Channel Analog Voltage/Current Input
2-Channel Analog Voltage/Current Output
1762-IF4 4-Channel Analog Voltage/Current Input
Allen-Bradley PLCs

Publication 1762-UM001B-EN-P
1-4 Hardware Overview
Communication Cables
Use only the following communication cables with the MicroLogix 1200
controllers.
•1761-CBL-PM02 Series C or later
•1761-CBL-HM02 Series C or later
•1761-CBL-AM00 Series C or later
•1761-CBL-AP00 Series C or later
•2707-NC8 Series A or later
•2702-NC9 Series B or later
•2707-NC10 Series B or later
•2707-NC11 Series B or later
Programming
Programming the MicroLogix 1200 programmable controller is done using
RSLogix™ 500, Revision 4 or later. You must use Revision 4.5 or later of
RSLogix™ 500 in order to use the new features of the Series B MicroLogix
1200 controllers, including the full ASCII instruction set. Communication
cables for programming are not included with the software.
Communication Options
The MicroLogix 1200 can be connected to a personal computer. It can
also be connected to the DH485 network using an Advanced Interface
Converter (catalog number 1761-NET-AIC) and to the DeviceNet™
network using a DeviceNet Interface (catalog number 1761-NET-DNI).
The controller can also be connected to DF1 Half Duplex or Modbus™
SCADA networks as an RTU slave. Series B controllers may also be
connected to serial devices using ASCII. See Chapter 4 Communication
Connections for more information on connecting to the available
communication options.
NOTE Series C or higher cables are required.

1Publication 1762-UM001B-EN-P
Chapter 2
Installing Your Controller
This chapter shows you how to install your controller. The only tools you
require are a flat or Phillips head screwdriver and drill. Topics include:
•agency certifications
•compliance to European Union Directives
•installation considerations
•safety considerations
•power considerations
•preventing excessive heat
•master control relay
•installing the memory module and/or real-time clock
•controller mounting dimensions
•controller and expansion I/O spacing
•mounting the controller
•mounting 1762 expansion I/O
•connecting 1762 expansion I/O
Agency Certifications
•UL 508
•C-UL under CSA C22.2 no. 142
•Class I, Division 2, Groups A, B, C, D
(UL 1604, C-UL under CSA C22.2 no. 213)
•CE compliant for all applicable directives
•C-Tick compliant for all applicable acts.
Allen-Bradley PLCs

Publication 1762-UM001B-EN-P
2-2 Installing Your Controller
Compliance to European
Union Directives
This product has the CE mark and is approved for installation within the
European Union and EEA regions. It has been designed and tested to
meet the following directives.
EMC Directive
This product is tested to meet Council Directive 89/336/EEC
Electromagnetic Compatibility (EMC) and the following standards, in
whole or in part, documented in a technical construction file:
•EN 50081-2
EMC - Generic Emission Standard, Part 2 - Industrial Environment
•EN 50082-2
EMC - Generic Immunity Standard, Part 2 - Industrial Environment
This product is intended for use in an industrial environment.
Low Voltage Directive
This product is tested to meet Council Directive 73/23/EEC Low Voltage,
by applying the safety requirements of EN 61131-2 Programmable
Controllers, Part 2 - Equipment Requirements and Tests.
For specific information required by EN 61131-2, see the appropriate
sections in this publication, as well as the following Allen-Bradley
publications:
•Industrial Automation Wiring and Grounding Guidelines for Noise
Immunity, publication 1770-4.1
•Guidelines for Handling Lithium Batteries, publication AG-5.4
•Automation Systems Catalog, publication B113