Rockwell Automation Allen-Bradley 1769-OF4 User manual

Compact I/O Analog Output Module
Catalog Number 1769-OF4
User Manual

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.rockwellautomation.com/literature/) 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.
Allen-Bradley, Rockwell Automation, Rockwell Software, Compact I/O, CompactLogix, MicroLogix, RSLogix 500, RSLogix 5000, RSNetWorx for DeviceNet, and TechConnect are trademarks of
Rockwell Automation, Inc.
Trademarks not belonging to Rockwell Automation are property of their respective companies.
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, and recognize the consequence
SHOCK HAZARD Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may
be present.
BURN HAZARD Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach
dangerous temperatures.

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Table of Contents
Preface
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
About This Publication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Who Should Use This Publication . . . . . . . . . . . . . . . . . . . . . 7
Additional Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 1
Overview Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Module Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Module Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Chapter 2
Installation and Wiring Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Hazardous Location Considerations . . . . . . . . . . . . . . . . 14
Preventing Electrostatic Discharge . . . . . . . . . . . . . . . . . 14
Removing Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Reduce Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Protect the Circuit Board from Contamination . . . . . . . . . 15
Assemble the Compact I/O System . . . . . . . . . . . . . . . . . . . 16
Mounting the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Minimum Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Mount to a Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Mount to a DIN Rail. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Replace a Single Module Within a System . . . . . . . . . . . . . . 19
Grounding the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
System Wiring Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Effect of Transducer/Sensor and Cable Length Impedance
on Voltage Output Accuracy. . . . . . . . . . . . . . . . . . . . . . 22
Label the Terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Remove the Finger-safe Terminal Block . . . . . . . . . . . . . . . . 23
Wire the Finger-safe Terminal Block . . . . . . . . . . . . . . . . . . 24
Wire Size and Terminal Screw Torque . . . . . . . . . . . . . . 25
Wire the Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Chapter 3
Module Data, Status, and Channel
Configuration
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Module Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Input Image. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Output Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Configuration File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Input Data File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
General Status Bits (S0…S3) . . . . . . . . . . . . . . . . . . . . . . 31
Over-range (high clamp) Status Bits (O0…O3) . . . . . . . . 31

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Table of Contents
Under-range (low clamp) Status Bits (U0…U3) . . . . . . . . 32
Output Data File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Cancel Clamp Alarm Latch Control Bits (CLO0…CLO3
and CHO0…CHO3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Configuration Data File . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Channel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Enable/Disable Channel (EC) . . . . . . . . . . . . . . . . . . . . . 35
Program Mode (PM). . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Program Value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Fault Mode (FM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Fault Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Program to Fault Enable (PFE) . . . . . . . . . . . . . . . . . . . . 36
Clamping (limiting) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Clamp High and Clamp Low Data Values . . . . . . . . . . . . 37
Output Ramping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Type/Range Selection . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Data Format Selection . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Chapter 4
Module Diagnostics and
Troubleshooting
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Power Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Activate Devices When Troubleshooting . . . . . . . . . . . . . 44
Stand Clear of the Machine. . . . . . . . . . . . . . . . . . . . . . . 44
Program Alteration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Safety Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Power Cycle Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Channel Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Output Clamp Detection . . . . . . . . . . . . . . . . . . . . . . . . 45
Non-critical versus Critical Module Errors . . . . . . . . . . . . . . . 45
Module Error Definition Table . . . . . . . . . . . . . . . . . . . . . . . 46
Module Error Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Extended Error Information Field . . . . . . . . . . . . . . . . . . 46
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Invalid Output Range Selected . . . . . . . . . . . . . . . . . . . . 48
Invalid Output Format Selected . . . . . . . . . . . . . . . . . . . 48
Invalid Fault Value Selected . . . . . . . . . . . . . . . . . . . . . . 49
Invalid Program/Idle Value Selected(1) . . . . . . . . . . . . . . 49
Invalid Clamp Value Selected . . . . . . . . . . . . . . . . . . . . . 49
Invalid Ramp Rate Selected(1) . . . . . . . . . . . . . . . . . . . . . 49
Module Inhibit Function . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Contacting Rockwell Automation . . . . . . . . . . . . . . . . . . . . . 50

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Table of Contents
Appendix A
Specifications Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
General Specifications – 1769-OF4. . . . . . . . . . . . . . . . . . . . 51
Output Specifications – 1769-OF4 . . . . . . . . . . . . . . . . . . . . 52
Certifications – 1769-OF4. . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Appendix B
Module Addressing and
Configuration with MicroLogix
1500 Controller
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Module Input Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Module Output Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Module Configuration File . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Configure Analog I/O Modules in a MicroLogix 1500
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Appendix C
Configuration Using the RSLogix
5000 Generic Profile for
CompactLogix Controllers
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Add the Module to Your Project . . . . . . . . . . . . . . . . . . . . . 61
Configure Each I/O Module. . . . . . . . . . . . . . . . . . . . . . . . . 64
Appendix D
Two’s Complement Binary
Numbers
Positive Decimal Values . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Negative Decimal Values. . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Glossary
Index

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Table of Contents

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Preface
Introduction
Read this preface to familiarize yourself with the rest of the manual.
About This Publication
This manual is a guide for using the Compact I/O Analog Output
Module, catalog number 1769-OF4. It describes the procedures you
use to configure, operate, and troubleshoot your module.
For detailed information on related topics like programming your
CompactLogix or MicroLogix controller, or DeviceNet adapter, or for
information on CompactLogix components, see the list of Additional
Resources on page 8.
Who Should Use This
Publication
Use this manual if you are responsible for designing, installing,
programming, or troubleshooting control systems that use Compact
I/O modules.
Topic Page
About This Publication 7
Who Should Use This Publication 7
Additional Resources 8

8Publication 1769-UM020A-EN-P - December 2009
Preface
Additional Resources
These documents contain additional information about control
systems that use Compact I/O modules.
You can view or download publications at
http://literature.rockwellautomation.com. To order paper copies of
technical documentation, contact your local Rockwell Automation
distributor or sales representative.
Resource Description
MicroLogix 1500 User Manual, publication 1764-UM001 A user manual containing information on how to install, use, and
program your MicroLogix 1500 controller.
DeviceNet Adapter User Manual, publication 1769-UM001 A user manual containing information on how to install and use your
1769-ADN DeviceNet adapter.
CompactLogix System User Manual, publication 1769-UM007 A user manual containing information on how to install, use, and
program your 1769-L20 and 1769-L30 CompactLogix controllers.
CompactLogix Controllers User Manual, publication 1769-UM011 A user manual containing information on how to install, use, and
program your 1769-L31, 1769-L32C, 1769-L32E, 1769-L35CR, and
1769-L35E CompactLogix controllers.
Compact I/O Selection Guide, publication 1769-SG002 An overview of 1769 Compact I/O modules.
MicroLogix Programmable Controllers Selection Guide,
publication 1761-SG001 An overview of the MicroLogix 1500 system, including the 1769
Compact I/O system.
Industrial Automation Wiring and Grounding Guidelines,
publication 1770-4.1 In-depth information on grounding and wiring Allen-Bradley
programmable controllers.

9Publication 1769-UM020A-EN-P - December 2009 9
Chapter 1
Overview
Introduction
Module Description
The module converts digital data from controllers to provide analog
output data. The module provides the following output types and
ranges.
The data can be configured as:
•engineering units.
•scaled-for-PID.
•percent range.
•raw/proportional data.
Module configuration is normally done via the controller’s
programming software. In addition, some controllers support
configuration via the user program. In either case, the module
configuration is stored in the memory of the controller. Refer to your
controller’s user manual for more information.
Topic Page
Module Description 9
System Overview 11
Module Operation 11
Normal and Full Ranges
Signal Type Normal Operating Input Range Full Module Range
Voltage
±10V DC ± 10.5V DC
1…5V DC 0.5…5.25V DC
0…5V DC -0.5…5.25V DC
0…10V DC -0.5…10.5V DC
Current 0…20 mA 0…21 mA
4…20 mA 3.2…21 mA

10 Publication 1769-UM020A-EN-P - December 2009
Chapter 1 Overview
Hardware Features
1769-OF4
DANGER
Do Not Remove RTB Under Power
Unless Area is Non-Hazardous
Ensure Adjacent
Bus Lever is Unlatched/Latched
Before/After
Removing/Inserting Module
I out 3 +
I out 0+
I out 2+
ANLG
Com
ANLG
Com
Vout 0 +
Vout 2+
Vout 1+
Vout 3+
I out 1+
OK
Analog
OK
Analog
2a
1
3
10a
10
10b 4
2b
8a
7a
9
7b 8b
7a
5b
6
5a
7b
Item Description
1 Bus lever (with locking function)
2a Upper-panel mounting tab
2b Lower-panel mounting tab
3 Module status indicators
4 Module door with terminal identification label
5a Movable bus connector with female pins
5b Stationary bus connector with male pins
6 Nameplate label
7a Upper tongue-and-groove slots
7b Lower tongue-and-groove slots
8a Upper DIN-rail latch
8b Lower DIN-rail latch
9 Write-on label for user identification tags
10 Removable terminal block (RTB) with finger-safe cover
10a RTB retaining screw
10b RTB retaining screw