Rockwell Automation 1769-OF4 User Manual

Compact I/O Analog Output Module

Catalog Number User Manual

1769-OF4

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 Automation sales office or online at http://www.rockwellautomation.com/literature/ 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.

available from your local Rockwell

) describes some important differences

IMPORTANT

ATTENTION

SHOCK HAZARD

BURN HAZARD

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.

Identifies information that is critical for successful application and understanding of the product.

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

Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present.

Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach dangerous temperatures.

Overview

Installation and Wiring

Preface

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

About This Publication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Who Should Use This Publication . . . . . . . . . . . . . . . . . . . . . 7

Additional Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Chapter 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Module Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Module Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Chapter 2

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

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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

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

Module Diagnostics and Troubleshooting

Chapter 4

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

Invalid Clamp Value Selected . . . . . . . . . . . . . . . . . . . . . 49

Invalid Ramp Rate Selected

(1)

. . . . . . . . . . . . . . . . . . . . . 49

Module Inhibit Function . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Contacting Rockwell Automation . . . . . . . . . . . . . . . . . . . . . 50

(1)

. . . . . . . . . . . . . . 49

4 Publication 1769-UM020A-EN-P - December 2009

Specifications

Module Addressing and Configuration with MicroLogix 1500 Controller

Configuration Using the RSLogix 5000 Generic Profile for CompactLogix Controllers

Table of Contents

Appendix A

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

General Specifications – 1769-OF4. . . . . . . . . . . . . . . . . . . . 51

Output Specifications – 1769-OF4 . . . . . . . . . . . . . . . . . . . . 52

Certifications – 1769-OF4. . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Appendix B

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

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Add the Module to Your Project . . . . . . . . . . . . . . . . . . . . . 61

Configure Each I/O Module. . . . . . . . . . . . . . . . . . . . . . . . . 64

Two’s Complement Binary Numbers

Appendix D

Positive Decimal Values . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Negative Decimal Values. . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Glossary

Index

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Table of Contents

6 Publication 1769-UM020A-EN-P - December 2009

Preface

Introduction

About This Publication

Who Should Use This Publication

Read this preface to familiarize yourself with the rest of the manual.

Topic Page

About This Publication 7 Who Should Use This Publication 7 Additional Resources 8

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.

Use this manual if you are responsible for designing, installing, programming, or troubleshooting control systems that use Compact I/O modules.

7Publication 1769-UM020A-EN-P - December 2009 7

Preface

Additional Resources

These documents contain additional information about control systems that use Compact I/O modules.

Resource Description

MicroLogix 1500 User Manual, publication 1764-UM001

DeviceNet Adapter User Manual, publication 1769-UM001

CompactLogix System User Manual, publication 1769-UM007

CompactLogix Controllers User Manual, publication 1769-UM011

Compact I/O Selection Guide, publication 1769-SG002 MicroLogix Programmable Controllers Selection Guide,

publication 1761-SG001 Industrial Automation Wiring and Grounding Guidelines,

publication 1770-4.1

A user manual containing information on how to install, use, and program your MicroLogix 1500 controller.

A user manual containing information on how to install and use your 1769-ADN DeviceNet adapter.

A user manual containing information on how to install, use, and program your 1769-L20 and 1769-L30 CompactLogix controllers.

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.

An overview of 1769 Compact I/O modules. An overview of the MicroLogix 1500 system, including the 1769

Compact I/O system. In-depth information on grounding and wiring Allen-Bradley

programmable controllers.

You can view or download publications at

http://literature.rockwellautomation.com

technical documentation, contact your local Rockwell Automation distributor or sales representative.

. To order paper copies of

8 Publication 1769-UM020A-EN-P - December 2009

Introduction

Overview

Topic Page

Module Description 9 System Overview 11 Module Operation 11

Chapter

Module Description

The module converts digital data from controllers to provide analog output data. The module provides the following output types and ranges.

Normal and Full Ranges

Signal Type Normal Operating Input Range Full Module Range

±10V DC ± 10.5V DC 1…5V DC 0.5…5.25V DC

Voltage

0…5V DC -0.5…5.25V DC 0…10V DC -0.5…10.5V DC 0…20 mA 0…21 mA

Current

4…20 mA 3.2…21 mA

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.

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Chapter 1 Overview

Hardware Features

Analog

Do Not Remove RTB Under Power

10a

10b

DANGER

Unless Area is Non-Hazardous

V out 0 +

I out 0+

V out 1+

I out 1+

V out 2+

I out 2+

V out 3+

I out 3 +

ANLG Com

Ensure Adjacent Bus Lever is Unlatched/Latched Before/After Removing/Inserting Module

1769-OF4

ANLG Com

Analog

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

10 Publication 1769-UM020A-EN-P - December 2009

Overview Chapter 1

System Overview

The module communicates to the controller through the bus interface. The module also receives 5 and 24V DC power through the bus interface.

You can install as many analog modules as your power supply can support. However, the modules may not be located more than eight modules away from the system power supply.

Determine Power Supply Distance

Adapter

or I/O Communication

CompactLogix Controller

Compact I/O

System Power Supply

Compact I/O

1123432

End Cap

Compact I/O

Power Supply Distance

Module Operation

MicroLogix 1500 Controller

with Integrated System

Power Supply

Compact I/O

234

Compact I/O

End Cap

Compact I/O

Power Supply Distance

When you cycle power, the module performs a check of its internal circuits, memory, and basic functions. During this time, the module-status OK indicator remains off. If no faults are found during power-cycle diagnostics, the module-status OK indicator is turned on.

After power-cycle checks are complete, the module waits for valid channel-configuration data. If an invalid configuration is detected, the module generates a configuration error. Once a channel is properly configured and enabled, the module begins its conversion process.

Each time a new output value is sent to the module, it is tested against user-configured high and low output clamps for each output channel. If output values equal to or exceeding either of these clamp levels are detected, the value sent to the module is clamped at that limit by the module, and unique bits are set in the output-channel status word.

Publication 1769-UM020A-EN-P - December 2009 11

Chapter 1 Overview

The channel status words are described in the Input Data File on

page 31.

The controller uses two’s complement binary data when communicating with the module. This typically occurs at the end of the program scan or when commanded by the control program. If the controller and the module determine that the bus data transfer was made without error, the input data is used in your control program and the output data is used by the module.

No field calibration is required.

12 Publication 1769-UM020A-EN-P - December 2009

Introduction

Installation and Wiring

Topic Page

General Considerations 13 Assemble the Compact I/O System 16 Mounting the Module 17 Replace a Single Module Within a System 19 Grounding the Module 20 System Wiring Guidelines 21 Label the Terminals 23 Remove the Finger-safe Terminal Block 23 Wire the Finger-safe Terminal Block 24

Chapter

General Considerations

Wire the Modules 25

The Compact I/O system is suitable for use in an industrial environment when installed in accordance with these instructions. Specifically, this equipment is intended for use in clean, dry

(1)

environments (Pollution degree 2

(2)

Over Voltage Category II

(IEC 60664-1).

) and to circuits not exceeding

(3)

(1) Pollution Degree 2 is an environment where, normally, only non-conductive pollution occurs except that

occasionally a temporary conductivity caused by condensation shall be expected.

(2) Over Voltage Category II is the load level section of the electrical distribution system. At this level, transient

voltages are controlled and do not exceed the impulse voltage capability of the product’s insulation.

(3) Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commission (IEC)

designations.

13Publication 1769-UM020A-EN-P - December 2009 13

Chapter 2 Installation and Wiring

Hazardous Location Considerations

This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or nonhazardous locations only. The following attention statement applies to use in hazardous locations.

ATTENTION

EXPLOSION HAZARD

• Substitution of components may impair suitability for Class I,

Division 2.

• Do not replace components or disconnect equipment unless

power has been switched off or the area is known to be nonhazardous.

• Do not connect or disconnect components unless power has

been switched off or the area is known to be nonhazardous.

• This product must be installed in an enclosure.

• All wiring must comply with N.E.C. article 501-4(b).

Preventing Electrostatic Discharge

ATTENTION

Electrostatic discharge can damage integrated circuits or semiconductors if you touch analog I/O module bus-connector pins or the terminal block on the module. Follow these guidelines when you handle the module:

• Touch a grounded object to discharge static potential.

• Wear an approved wrist-strap grounding device.

• Do not touch the bus connector or connector pins.

• Do not touch circuit components inside the module.

• Use a static-safe work station, if available.

• Keep the module in its static-shield box, when it is not in use.

14 Publication 1769-UM020A-EN-P - December 2009

Removing Power

Installation and Wiring Chapter 2

ATTENTION

Remove power before removing or inserting this module. When you remove or insert a module with power applied, an electrical arc may occur. An electrical arc can cause personal injury or property damage by:

• sending an erroneous signal to your system’s field devices,

causing unintended machine motion.

• causing an explosion in a hazardous environment.

Electrical arcing causes excessive wear to contacts on both the module and its mating connector and may lead to premature failure.

Reduce Noise

Most applications require installation in an industrial enclosure to reduce the effects of electrical interference. Analog outputs are highly susceptible to electrical noise. Electrical noise coupled to the analog outputs reduces the performance (accuracy) of the module.

Group your modules to minimize adverse effects from radiated electrical noise and heat. Consider the following conditions when selecting a location for the analog module. Position the module:

• away from sources of electrical noise such as hard-contact

switches, relays, and AC motor drives.

• away from modules that generate significant radiated heat, such

as the 1769-IA16 module. Refer to the module’s heat dissipation specification.

In addition, route shielded, twisted-pair analog wiring away from any high-voltage I/O wiring.

Protect the Circuit Board from Contamination

Protect the board from dirt, oil, moisture, and other airborne contaminants by installing the system in an enclosure suitable for the environment. Keep the interior of the enclosure clean and the enclosure door closed whenever possible.

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Chapter 2 Installation and Wiring

Assemble the Compact I/O System

The module can be attached to the controller or an adjacent I/O module before or after mounting.

For mounting instructions, see Panel Mounting By Using the

Dimensional Template on page 18, or Mount to a DIN Rail on page

19. To work with a system that is already mounted, see Replace a Single Module Within a System on page 19.

1. Disconnect power.

2. Check that the bus lever of the module to be installed is in the

unlocked (fully right) position.

3. Use the upper and lower tongue-and-groove slots (1) to secure

the modules together (or to a controller).

4. Move the module back along the tongue-and-groove slots until

the bus connectors (2) line up with each other.

5. Use your fingers or a small screwdriver to push the bus lever

back slightly to clear the positioning tab (3).

16 Publication 1769-UM020A-EN-P - December 2009

Installation and Wiring Chapter 2

6. To allow communication between the controller and module,

move the bus lever fully to the left (4) until it clicks.

Make sure it is locked firmly in place.

Mounting the Module

ATTENTION

When attaching I/O modules, it is very important that the bus connectors are securely locked together to be sure of proper electrical connection.

7. Attach an end cap terminator (5) to the last module in the

system by using the tongue-and-groove slots as before.

8. Lock the end cap bus terminator (6).

IMPORTANT

A 1769-ECR or 1769-ECL right or left end cap must be used to terminate the end of the bus.

Modules may be mounted to a panel or to a DIN rail.

ATTENTION

During panel or DIN rail mounting of all devices, be sure that all debris (that is, metal chips or wire strands) is kept from falling into the module. Debris that falls into the module could cause damage when you cycle power.

Minimum Spacing

Maintain spacing from enclosure walls, wireways, or adjacent equipment. Allow 50 mm (2 in.) of space on all sides for adequate ventilation.

Space Requirements

To p

Host Controller

Side Side

Compact I/O

Bottom

Publication 1769-UM020A-EN-P - December 2009 17

End Cap

Compact I/O

Chapter 2 Installation and Wiring

Mount to a Panel

Mount the module to a panel by using two screws per module. Use M4 or #8 panhead screws. Mounting screws are required on every module.

Panel Mounting By Using the Dimensional Template

Locate holes every 17.5 mm (0.689 in.) to allow for a mix of single-wide and one-and-a-half-wide modules (for example, the 1769-OA16 module).

Spacing for one-and-a-half-wide modules 52.5 mm (2.067 in.).

Refer to host controller documentation for this dimension.

Overall hole spacing tolerance: ±0.4 mm (0.016 in.).

Spacing for single-wide modules 35 mm (1.378 in.).

122.6 mm

(4.826 in.)

132 mm (5.197 in.)

Host Controller

Panel Mounting By Using the Modules as a Template

This procedure lets you use the assembled modules as a template for drilling holes in the panel. If you have sophisticated panel-mounting equipment, you can use the dimensional template provided. Due to module mounting-hole tolerance, it is important to follow these procedures.

1. On a clean work surface, assemble no more than three modules.

2. Using the assembled modules as a template, carefully mark the

center of all module-mounting holes on the panel.

3. Return the assembled modules to the clean work surface,

including any previously mounted modules.

4. Drill and tap the mounting holes for the recommended M4 or #8

screw.

5. Place the modules back on the panel, and check for proper hole

alignment.

18 Publication 1769-UM020A-EN-P - December 2009

Installation and Wiring Chapter 2

6. Attach the modules to the panel by using the mounting screws.

Replace a Single Module Within a System

TIP

7. Repeat steps 1

If mounting more modules, mount only the last one of this group and put the others aside. This reduces remounting time during drilling and tapping of the next group.

…6 for any remaining modules.

Mount to a DIN Rail

The module can be mounted by using the following DIN rails:

• 35 x 7.5 mm (EN 50 022 - 35 x 7.5)

• 35 x 15 mm (EN 50 022 - 35 x 15)

Before mounting the module on a DIN rail, close the DIN rail latches. Press the DIN-rail mounting area of the module against the DIN rail. The latches will momentarily open and lock into place.

The module can be replaced while the system is mounted to a panel (or DIN rail). Follow these steps in order.

1. Remove power.

ATTENTION

2. On the module to be removed, remove the upper and lower

mounting screws from the module or open the DIN latches by using a screwdriver.

3. Move the bus lever to the right to disconnect (unlock) the bus.

•sending an erroneous signal to your system’s field devices,

causing unintended machine motion.

•causing an explosion in a hazardous environment.

Electrical arcing causes excessive wear to contacts on both the module and its mating connector and may lead to premature failure.

Publication 1769-UM020A-EN-P - December 2009 19

Chapter 2 Installation and Wiring

4. On the right-side adjacent module, move its bus lever to the

right (unlock) to disconnect it from the module to be removed.

5. Gently slide the disconnected module forward.

If you feel excessive resistance, check that the module has been disconnected from the bus, and that both mounting screws have been removed or DIN latches opened.

Grounding the Module

TIP

6. Before installing the replacement module, be sure that the bus

lever on the module to be installed and on the right-side adjacent module are in the unlocked (fully right) position.

7. Slide the replacement module into the open slot.

8. Connect the modules together by locking (fully left) the bus

levers on the replacement module and the right-side adjacent module.

9. Replace the mounting screws or snap the module onto the DIN

rail.

This product is intended to be mounted to a well-grounded mounting surface, such as a metal panel. Additional grounding connections from the module’s mounting tabs or DIN rail (if used) are not required unless the mounting surface cannot be grounded. Refer to Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1 for additional information.

It may be necessary to rock the module slightly from front to back to remove it, or, in a panel-mounted system, to loosen the screws of adjacent modules.

20 Publication 1769-UM020A-EN-P - December 2009

Installation and Wiring Chapter 2

System Wiring Guidelines

Consider the following when wiring your system:

• All module commons (ANLG Com) are connected in the analog

module.

• The analog common (ANLG Com) is not connected to earth

ground inside the module.

• Channels are not isolated from each other.

• For optimum accuracy, limit overall cable impedance by

keeping your cable as short as possible. Locate the I/O system as close to your sensors or actuators as your application will permit.

• Use Belden 8761, or equivalent, shielded wire.

• Under normal conditions, the drain wire and shield junction

must be connected to earth ground via a panel or DIN-rail mounting screw at the analog I/O module end.

(1)

• Keep shield connection to ground as short as possible.

• Voltage outputs (Vout 0+…Vout 3+) of the 1769-OF4 module are

referenced to ANLG Com. Load resistance for a voltage output channel must be equal to or greater than 1 kΩ .

• Current outputs (Iout 0+…Iout 3+) of the 1769-OF4 module

source current that returns to ANLG Com. Load resistance for a current output channel must remain between 0 and 600 Ω .

(1) In environments where high-frequency noise may be present, it may be necessary to directly ground cable

shields to earth at the module end and via a 0.01 µF, 2000V capacitor at the sensor end.

Publication 1769-UM020A-EN-P - December 2009 21

Chapter 2 Installation and Wiring

Effect of Transducer/Sensor and Cable Length Impedance on Voltage Output Accuracy

For voltage outputs, the length of the cable used between the load and the module can affect the accuracy of the data provided by the module.

Voltage Output Accuracy

RcRs

Where:

V in

Rc = DC resistance of the cable (each conductor) depending on cable length

Rs = Source impedance (1 Ω)

Ri = Impedance of the voltage input

Vs = Voltage at the output of 1769-OF4 module

Vin = Measured potential at the module input

%Ai = Percent added inaccuracy in a voltage-based system due to source and cable impedance

Ri Vs×[]

Vin

--------------------------------------------------------

[]

Rs 2 Rc×()Ri++

For example, for Belden 8761 two conductor, shielded cable and a 1769-IF4 input module as the load:

Rc = 52.5 Ω/1000 m Rs = 1 Ω

Ai 1

Vin

⎛⎞

---------

100×=

–

⎝⎠

Ri = 220 KΩ

Effect of Output Impedance and Cable Length on Accuracy

Length of Cable DC Resistance of the Cable Rc Accuracy Impact at the

Load

50 m (164 ft) 2.625 Ω 0.00284% 100 m (328 ft) 5.25 Ω 0.00523% 200 m (656 ft) 10.50 Ω 0.01% 300 m (984 ft) 15.75 Ω 0.01477%

22 Publication 1769-UM020A-EN-P - December 2009

Installation and Wiring Chapter 2

As output impedance (Rs) and/or resistance (DC) of the cable (Rc) get larger, system accuracy decreases. If you determine that the inaccuracy error is significant, implementing the following equation in the control program can compensate for the added inaccuracy error due to the impedance of the module’s voltage outputs and cable.

Rs 2 Rc×()Ri++[]

--------------------------------------------------------

Vs Vin

×=

Label the Terminals

Remove the Finger-safe Terminal Block

TIP

For current outputs, source and cable impedance do not impact system accuracy as long as the total resistance of the cable and input impedance of the load remain within the specified maximum limits for the module's current outputs.

A removable, write-on label is provided with the module. Remove the label from the door, mark the identification of each terminal with permanent ink, and slide the label back into the door. Your markings (ID tag) will be visible when the module door is closed.

When wiring field devices to the module, it is not necessary to remove the terminal block. If you remove the terminal block, use the write-on label on the side of the terminal block to identify the module slot location and type. RTB position (for one-and-a-half size modules) can be indicated by circling either the R for right side or L for left side.

Finger-safe Terminal Block

R L

SLOT # ____

MODULE TYPE _____

RoHS

To remove the terminal block, loosen the upper and lower retaining screws. The terminal block will back away from the module as you remove the screws. When replacing the terminal block, torque the retaining screws to 0.46 N•m (4.1 lb•in).

Publication 1769-UM020A-EN-P - December 2009 23

Chapter 2 Installation and Wiring

Wire the Finger-safe Terminal Block

Upper Retaining Screw

Lower Retaining Screw

When wiring the terminal block, keep the finger-safe cover in place.

1. Loosen the terminal screws to be wired.

2. Begin wiring at the bottom of the terminal block and move up.

3. Route the wire under the terminal pressure plate.

You can use the bare wire or a spade lug. The terminals accept a

6.35 mm (0.25 in.) spade lug.

TIP

4. Tighten the terminal screw making sure the pressure plate

secures the wire.

Recommended torque when tightening terminal screws is

0.68 N•m (6 lb•in).

TIP

The terminal screws are non-captive. Therefore, it is possible to use a ring lug (maximum 1/4 in. o.d. with a 0.139 in. minimum i.d. (M3.5)) with the module.

If you need to remove the finger-safe cover, insert a screwdriver into one of the square, wiring holes and gently pry the cover off. If you wire the terminal block with the finger-safe cover removed, you will not be able to put it back on the terminal block because the wires will be in the way.

24 Publication 1769-UM020A-EN-P - December 2009

Wire Type Wire Size Terminal Screw Torque Retaining Screw Torque

Solid Cu-90 °C (194 °F) Stranded Cu-90 °C (194 °F)

Wire the Modules

Wire Size and Terminal Screw Torque

Each terminal accepts up to two wires.

0.325…2.080 mm

0.325…1.310 mm

ATTENTION

After the analog module is properly installed, follow the wiring procedure below. For proper operation and high immunity to electrical noise, always use Belden 8761 (shielded, twisted-pair) or equivalent wire.

(22…14 AWG)

(22…16 AWG)

Installation and Wiring Chapter 2

0.68 N•m (6 lb•in) 0.46 N•m (4.1 lb•in)

0.68 N

•m (6 lb•in)

0.46 N•m (4.1 lb•in)

To prevent shock hazard, care should be taken when wiring the module to analog signal loads. Before wiring any analog module, disconnect power from the system power supply and from any other load to the analog module.

ATTENTION

Never connect a voltage or current source to an analog output channel.

Belden 8761 Wire

Cut foil shield and drain wire.

Signal Wire

Drain Wire

Cable

Foil Shield

Signal Wire

To wire your module, follow these steps.

1. At each end of the cable, strip some casing to expose the

individual wires.

2. Trim the signal wires to 51 mm (2 in.) lengths.

Signal Wire

Publication 1769-UM020A-EN-P - December 2009 25

Chapter 2 Installation and Wiring

3. Strip about 5 mm (3/16 in.) of insulation away to expose the end

of the wire.

ATTENTION

Be careful when stripping wires. Wire fragments that fall into a module could cause damage when you cycle power.

4. At one end of the cable, twist the drain wire and foil shield

together.

Under normal conditions, this drain wire and shield junction must be connected to earth ground, via a panel or DIN rail mounting screw at the analog I/O module end. Keep the length of the drain wire as short as possible.

In environments where high frequency noise may be present, it may be necessary to also ground the cable shields to earth via a

0.1 µF capacitor at the sensor end.

5. At the other end of the cable, cut the drain wire and foil shield

back to the cable, unless the sensor end of the cable requires the shields to be connected to earth ground via the capacitor described in step 4

6. Connect the signal wires to the terminal block.

7. Connect the other end of the cable to the analog output device.

8. Repeat steps 1

Terminal Layout

ANLG Com

…6 for each channel on the module.

I out 0+

I out 1+

I out 2+

I out 3+

V out 0+

V out 1+

V out 2+

V out 3+

ANLG Com

26 Publication 1769-UM020A-EN-P - December 2009

Wiring Analog Outputs

Voltage Load

Current Load

Earth Ground

Installation and Wiring Chapter 2

Terminal Block

V out 3+

I out 3+

V out 2+

I out 2+

ANLG Com

ANLG Com V out 0+

I out 0+ V out 1+

I out 1 +

ATTENTION

Analog outputs may fluctuate for less than a second when power is applied or removed. This characteristic is common to most analog outputs. While the majority of loads will not recognize this short signal, take preventative measures to make sure that connected equipment is not affected. Failure to take these preventative measures may result in unexpected load reactions.

Publication 1769-UM020A-EN-P - December 2009 27

Chapter 2 Installation and Wiring

Notes:

28 Publication 1769-UM020A-EN-P - December 2009

Introduction

Chapter

Module Data, Status, and Channel Configuration

Topic Page

Module Addressing 29 Input Data File 31 Output Data File 32 Configuration Data File 33 Channel Configuration 34

Module Addressing

Slot e

Input Image

File

Slot e

Output Image

File

Slot e

Configuration

File

Input Image 5 Words

Output Image 5 Words

Configuration File 32 Words

This memory map shows the output, input, and configuration tables for the module.

Memory Map

Output Clamp Status Bits

Data Echo Channel 0 Data Echo Channel 1 Data Echo Channel 2 Data Echo Channel 3

Channel 0 Data Word Word 0

Channel 1 Data Word Word 1 Channel 2 Data Word Channel 3 Data Word

Cancel Output Clamp Latch Bits

Channel 0 Configuration Words Channel 1 Configuration Words Channel 2 Configuration Words Channel 3 Configuration Words

Word 0 Word 1

Word 2 Word 3 Word 4

Word 2 Word 3

Word 4

Words 0…7 Words 8…15 Words 16…23 Words 24…31

Bit 15

29Publication 1769-UM020A-EN-P - December 2009 29

Bit 0

Chapter 3 Module Data, Status, and Channel Configuration

Input Image

The input image file represents data words and status bits.

Word 0 holds the general status bits for each output channel as well as the over-range and under-range output-clamp status bits. To receive valid status information, the output channel must be enabled. Words 1…4 contain the data echo values for the most recent data sent to the output channels.

Output Image

Output words 0…3 contain the digital data to be converted by outputs 0…3 into analog output signals. Word 4 contains the cancel clamp alarm latched status control bits for the high and low output-clamp statuses on each output channel. These bits are used to cancel output-clamp statuses when the clamp statuses are latched.

Configuration File

The configuration file contains information that you use to define the way a specific channel functions.

The manipulation of bits from this file is normally done with programming software (for example, RSLogix 5000, RSLogix 500, or RSNetWorx for DeviceNet software) during initial configuration of the system. In that case, graphical screens provided by the programming software simplify configuration.

Some systems, like the 1769-ADN DeviceNet adapter system, also allow the bits to be altered as part of the control program by using communication rungs. In that case, it is necessary to understand the bit arrangement

TIP

Not all controllers support program access to the configuration file. Refer to your controller’s user manual.

30 Publication 1769-UM020A-EN-P - December 2009

Module Data, Status, and Channel Configuration Chapter 3

Input Data File

The input data file lets you access analog module read data for use in the control program, via word and bit access. The data table structure is shown in the table below. For each output module, slot x, word 0 contains the output-channel status bits. Words 1…4 in the intput data file contain the output channel data echo values. The most significant bit (MSB) is the sign bit, which is in two’s complement format. ‘Nu’ indicates not used with the bit set to zero.

Input Data Array

Word/Bit 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Word 0 U3 O3U2O2U1O1U0O0NUNUNUNUS3S2S1S0 Word 1 SGN Output Data Loopback/Echo Channel 0 Word 2 SGN Output Data Loopback/Echo Channel 1 Word 3 SGN Output Data Loopback/Echo Channel 2 Word 4 SGN Output Data Loopback/Echo Channel 3

General Status Bits (S0…S3)

Word 0, bits 0…3 contain the general operational status bits for output channels 0…3. When set (1), these bits indicate an output-clamp range error associated with that channel. The over- and under-range bits are logically ORed to the appropriate general status bit.

Over-range (high clamp) Status Bits (O0…O3)

Over-range (high clamp) status bits for output channels 0…3 are contained in Word 0, bits 8, 10, 12, and 14. When set (1), these bits indicate an output value sent to the module is greater than or equal to the user-configured high clamp value for the output channel. The module clamps the analog output signal at the high clamp value. These bits are automatically reset (0) by the module when the high clamp condition clears, unless the channel’s clamp status bits are latched. The module’s output signals always return to normal operation when directed to values allowed by the high clamp and low clamp settings. If the channel’s clamp status bits are latched, a set (1) high clamp status bit clears via the corresponding Cancel High Clamp Latch bit in your output data file.

Publication 1769-UM020A-EN-P - December 2009 31

Chapter 3 Module Data, Status, and Channel Configuration

Under-range (low clamp) Status Bits (U0…U3)

Under-range (low clamp) bits for output channels 0…3 are contained in Word 0, bits 9, 11, 13, and 15. When set (1), these bits indicate an output value sent to the module is less than or equal to the user-configured low clamp value for the output channel. The module clamps the analog output signal at the low clamp value. These bits are automatically reset (0) by the module when the low clamp condition clears, unless the channel’s clamp status bits are latched. The module’s output signals always return to normal operation when directed to values allowed by the high clamp and low clamp settings. If the channel’s clamp status bits are latched, a set (1) low clamp status bit clears via the corresponding Cancel Low Clamp Latch bit in your output data file.

Output Data File

Word/ Bit

Word 0 SGN Analog Output Data Channel 0 Word 1 SGN Analog Output Data Channel 1 Word 2 SGN Analog Output Data Channel 2 Word 3 SGN Analog Output Data Channel 3 Word 4 NU NU NU NU NU NU NU NU CLO3 CH O3 CLO2 CH O2 CLO1 CH O1 CLO0 CH O0

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

The output data file lets you write analog output data and unlatch command data to the module with the control program and bit access. The data table structure is shown in the table below. For each module, slot x, words 0…3 in the output data file contain the digital values of the data to be converted to analog signals by the module outputs. The most significant bit (MSB) is the sign bit, in two’s complement format. ‘Nu’ indicates not used with the bit set to zero.

Cancel Clamp Alarm Latch Control Bits (CLO0…CLO3 and CHO0…CHO3)

These bits are written during Run mode to cancel any latched low and high clamp status bits. The status bit is unlatched on a low to high transition (0 to 1) of the unlatch bit if the clamp condition no longer exists. If the clamp condition persists, then the low to high transition of the unlatch bit has no effect. You need to continue to toggle the unlatch bit until verification from the appropriate output-channel status word that the clamp status bit has cleared (0).

32 Publication 1769-UM020A-EN-P - December 2009

Module Data, Status, and Channel Configuration Chapter 3

Configuration Data File

The configuration file lets you determine how each individual output channel will operate. Parameters such as the output type and data format are set up by using this file. This data file is writable and readable. The default value of the configuration data table is all zeros.

Configuration Data File

Word/Bit 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Word 0 EC NU EHI ELI LC ER FM PM NU PFE Word 1 NU Format Ch0 NU Type/Range Sel Ch0 Word 2 SGN Fault Value Channel 0 Word 3 SGN Program (Idle) Value Channel 0 Word 4 SGN Clamp High Data Value Channel 0 Word 5 SGN Clamp Low Data Value Channel 0 Word 6 SGN Ramp Rate Channel 0 Word 7 NU Word 8 EC NU EHI ELI LC ER FM PM NU PFE Word 9 NU Format Ch1 NU Type/Range Sel Ch1 Word 10 SGN Fault Value Channel 1 Word 11 SGN Program (Idle) Value Channel 1 Word 12 SGN Clamp High Data Value Channel 1 Word 13 SGN Clamp Low Data Value Channel 1 Word 14 SGN Ramp Rate Channel 1 Word 15 NU Word 16 EC NU EHI ELI LC ER FM PM NU PFE Word 17 NU Format Ch2 NU Type/Range Sel Ch2 Word 18 SGN Fault Value Channel 2 Word 19 SGN Program (Idle) Value Channel 2 Word 20 SGN Clamp High Data Value Channel 2 Word 21 SGN Clamp Low Data Value Channel 2 Word 22 SGN Ramp Rate Channel 2 Word 23 NU Word 24 EC NU EHI ELI LC ER FM PM NU PFE Word 25 NU Format Ch3 NU Type/Range Sel Ch3 Word 26 SGN Fault Value Channel 3 Word 27 SGN Program (Idle) Value Channel 3 Word 28 SGN Clamp High Data Value Channel 3 Word 29 SGN Clamp Low Data Value Channel 3 Word 30 SGN Ramp Rate Channel 3 Word 31 NU

For information on configuring the module by using MicroLogix 1500 and RSLogix 500 software, see Appendix RSLogix 5000 software, see Appendix C

B; for CompactLogix and

The configuration file can also be modified through the control program, if supported by the controller. The structure and bit settings are shown in Channel Configuration

Publication 1769-UM020A-EN-P - December 2009 33

on the following page.

Chapter 3 Module Data, Status, and Channel Configuration

Channel Configuration

Each channel is independently configured via a group of eight consecutive words in the Configuration Data file. The first two words of the group consist of bit fields, the settings of which determine how the output channel operates. See the tables below and the descriptions that follow for valid configuration settings and their meanings. The default bit status of the configuration file is all zeros.

Bit Definitions for Channel Configuration Words

Define To choose Make these bit settings

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Program to Fault Enable (PFE)

(1)

Program Mode (PM)

Fault Mode (FM)

(1)

Enable Ramping (ER)

Latch Clamp Status (LC)

Enable Low Clamp Alarm Interrupt (ELI)

Enable High Clamp Alarm Interrupt (EHI)

Enable Channel (EC) Enable 1

(1) Alternate output states are not supported by all controllers. Refer to your controller’s user manual to determine whether alternate output states and this module function

are supported.

(2) Module interrupts are not supported by all controllers. Refer to your controller’s user manual to determine whether module interrupts are supported.

Program Data 1 Fault Data

(1)

User-defined 1 Hold Last State 0 User-defined 1 Hold Last State 0

(1)

Enable 1 Disable 0 Enable 1 Disable 0 Enable 1

(2)

Disable 0 Enable 1

(2)

Disable 0

Bit Definitions for Type/Range and Data Format Configuration Words

Define To choose Make these bit settings

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Type/Range Select

Data Format Select

-10…10V DC 0…5V DC 0…10V DC 4…20 mA 1…5V DC 0…20 mA Raw/Proportional

Counts

000

0000 0001 0010 0011 0100 0101

Engineering Units 001 Scaled for PID 010 Percent Range 011

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Module Data, Status, and Channel Configuration Chapter 3

Enable/Disable Channel (EC)

This configuration lets each channel be enabled individually. When a channel is not enabled (EC = 0), the output channel is set to 0V or 0mA.

Program Mode (PM)

This configuration selection provides individual Program mode selection for the output channels. When this selection is disabled (PM = 0), the module holds the last state. This means that the output remains at the last converted value prior to the condition that caused the control system to enter Program mode.

IMPORTANT

Hold last state is the default condition for the module during a control system Run-to-Program mode change.

If this selection is enabled (PM = 1), and the system enters the Program mode, the module converts the user-specified value from the channel’s Program Value word to the appropriate analog output for the range selected.

TIP

Not all controllers support alternate output states and this function. Refer to your controller’s user manual for details.

Program Value

Use each output channel’s program value word to set the analog values for the outputs to assume when the system enters the Program mode. Valid values are dependent upon the type/range and data format selected for each output channel or the user-defined output clamp values. If the value you enter is outside the full range for the output type/range and data format selected, or outside the limits set by the channel’s low and high clamp values, the module generates a configuration error. The default value is 0.

TIP

Publication 1769-UM020A-EN-P - December 2009 35

Not all controllers support alternate output states and this function. Refer to your controller’s user manual for details.

Chapter 3 Module Data, Status, and Channel Configuration

Fault Mode (FM)

This configuration selection provides individual Fault mode selection for the output channels. When this selection is disabled (FM = 0), the module holds the last state, meaning that the output remains at the last converted value prior to the condition that caused the control system to enter the Fault mode.

IMPORTANT

Hold last state is the default condition for the module during a control system Run-to-Fault mode change.

If this selection is enabled (FM = 1), and the system enters the Fault mode, the module converts the user-specified value from the channel’s Fault Value word to the appropriate analog output for the range selected.

TIP

Not all controllers support alternate output states and this function. Refer to your controller’s user manual for details.

Fault Value

Use each output channel’s fault value word to set the analog values for the outputs to assume when the system enters the Fault mode. Valid values depend upon the type/range and data format selected for each output channel or the user-defined output clamp values. If the value you enter is outside of the full range for the output type/range and data format selected, or outside of the limits set by the channel’s low and high clamp values, the module generates a configuration error. The default value is 0.

TIP

Not all controllers support alternate output states and this function. Refer to your controller’s user manual for details.

Program to Fault Enable (PFE)

If a system currently in Program mode faults, this setting determines whether the program or fault value is applied to the output. If the selection is enabled (PFE = 1), the module applies the Fault mode data value. If the selection is disabled (PFE = 0), the module applies the Program mode data value. The default setting is disabled.

TIP

36 Publication 1769-UM020A-EN-P - December 2009

Not all controllers support alternate output states and this function. Refer to your controller’s user manual for details.

Module Data, Status, and Channel Configuration Chapter 3

Clamping (limiting)

Clamping limits the outputs from the module to within a user-configured range when the controller commands an output to a value outside of that range. The module supports a high clamp value and a low clamp value for each output channel. Once clamps are set for a module, any data received from the controller that exceeds those clamp values sets an appropriate over-range and under-range clamp status bit and transitions the output to that limit but not beyond.

Clamp High and Clamp Low Data Values

Clamping is disabled on a per channel basis for each output channel by entering a 0 value in both the clamp high data value and clamp low data value words in the configuration-data file. If either the clamp high data value or clamp low data value words have a non-zero value entered, clamping is enabled for the corresponding output channel. Non-zero clamp data values are considered valid only if they are within the full-range limits set by the type/range and data format selections for the channel. Also, the non-zero clamp data values are valid only if the high clamp data value for an output channel is greater than or equal to the low clamp data value.

Latch Clamp Status (LC)

If the selection is enabled (LC = 1), the module latches any over-range or under-range clamp status bits that are set in the Input Data file. Latched clamp status bits must be reset via the Output Data file. If the selection is disabled (LC = 0), any clamp status bits that are set in the Input Data file are automatically reset when the clamp limits are no longer exceeded by the controller. The default setting is disabled.

Enable Low Clamp Alarm Interrupt and Enable High Clamp Alarm Interrupt (ELI and EHI)

If the selection is enabled (ELI = 1 or EHI = 1), the module generates a module interrupt to the controller when an over-range or under-range clamp status bit is set (1). A separate interrupt can be enabled for each output channel’s high clamp status and low clamp status. If the selection is disabled (ELI = 0 or EHI = 0), no module interrupts are generated when output clamp status bits are set. The default setting is disabled.

TIP

Not all controllers support module interrupts and this function. Refer to your controller’s user manual for details.

Publication 1769-UM020A-EN-P - December 2009 37

Chapter 3 Module Data, Status, and Channel Configuration

Output Ramping

Ramping limits the speed at which an output signal can change. This prevents vast transitions in the output from damaging the output controls.

Ramp to Fault mode is the only type of ramping supported by the module. This type of ramping occurs when the present output value changes to the fault value after a change in the controller's status to Fault mode has occurred.

Enable Ramping (ER)

If the selection is enabled (ER = 1), the module controls the ramp rate of the output when the system transitions from Run to Fault mode based on the value entered in the channel’s ramp-rate configuration word. If the selection is disabled (ER = 0), no ramping control of the output is provided. The default setting is disabled.

TIP

Not all controllers support alternate output states and this function. Refer to your controller’s user manual for details.

Ramp Rate

The ramp rate is defined in terms of the selected range/format in units per second. For example, in the 0…20 mA range and percent full scale format, a ramp rate of 1050 is 10% per second (2 mA/s), since 1050 is 10% of the total number of counts in the full scale of the 0…20 mA range when using percent full scale format.

38 Publication 1769-UM020A-EN-P - December 2009

This table describes how the ramp rate is determined for all output types/ranges and output data formats.

Ramp Rates for Output Type/Range and Data Formats

Module Data, Status, and Channel Configuration Chapter 3

Output Data Format Output Type/Range Total Counts in Full Scale Number of Counts for

Every 1% of Ramp Rate

-10…10V DC 0…5V DC 0.058V/s

Proportional Counts

0…10V DC 0.11V/s 1…5V DC 0.048V/s

65,534

(1)

655

0…20 mA 0.21 mA/s 4…20 mA 0.178 mA/s

-10…10V DC 21,000 210 0.21V/s 0…5V DC 5750 58 0.058V/s 0…10V DC 11,000 110 0.11V/s

Engineering Units

1…5V DC 4750 48 0.048V/s 0…20 mA 21,000 210 0.21 mA/s 4…20 mA 17,800 178 0.178 mA/s

-10…10V DC 17,203 172 0.21V/s 0…5V DC 18,840 188 0.058V/s 0…10V DC 18,021 180 0.11V/s

Scaled for PID

1…5V DC 19,455 195 0.048V/s 0…20 mA 17,202 172 0.21 mA/s 4…20 mA 18,226 182 0.178 mA

Real Units/Second for Every 1% of Ramp Rate

0.21V/s

-10…10V DC 21,000 210 0.21V/s 0…5V DC 11,500 115 0.058V/s 0…10V DC 11,000 110 0.11V/s

Percent of Full Scale

1…5V DC 11,875 119 0.048V/s 0…20 mA 10,500 105 0.21 mA/s 4…20 mA 11,125 111 0.178 mA/s

(1) Limited to 32,767 by programming software.

If configured, ramping takes place only when the output is commanded to go to a fault state. Ramping does not occur during normal run operation.

Publication 1769-UM020A-EN-P - December 2009 39

Chapter 3 Module Data, Status, and Channel Configuration

The ramp rate values are entered in the Configuration Data file and are accepted as valid only if:

• the number of counts entered for a channel’s ramp rate is

between a minimum of 1% and a maximum of 100% of the total number of full scale counts for the channel’s selected data format.

• the number of counts entered for a channel’s ramp rate is equal

to zero and ramping is not enabled for that channel.

TIP

Not all controllers support alternate output states and this function. Refer to your controller’s user manual for details.

Type/Range Selection

This selection lets you configure each output channel individually and provides the means of designating whether the output is a voltage or current source. The output range for each output channel is also configured by this selection.

Data Format Selection

This selection configures each output channel to accept digital data in any of the following formats:

• Raw/Proportional Data

• Engineering Units

• Scaled-for-PID

• Percent Range

See Valid Output Data

on page 41.

Raw/Proportional Data

The value sent by the controller to the output channel is proportional to the selected output and scaled into the maximum data range allowed by the bit resolution of the D/A converter. For example, the data value range for a ±10V DC user input is -32,767…32,767, which covers the full-scale range of -10.5…10.5V.

40 Publication 1769-UM020A-EN-P - December 2009

Module Data, Status, and Channel Configuration Chapter 3

Engineering Units

The value sent by the controller to the output channel is the actual current or voltage value for the selected output range. The resolution of the engineering units is 0.001V or 0.001 mA per count.

Scaled-for-PID

The value sent by the controller to the output channel is a signed integer with 0 representing the lower limit of the normal operating range and 16,383 representing the upper limit of the normal operating range. Allen-Bradley controllers, such as the MicroLogix 1500 controller, use this range in their PID equations. The amount over and under the normal operating range (the full-scale range) is also supported.

Percent Range

The value sent by the controller to the output channel is presented as a percentage of the normal operating range selected for that output channel. For example, 0…10V DC equals 0…100%. The resolution of the percent range is 0.01% per count. The amount over and under the normal operating range (the full-scale range) is also supported.

Valid Output Data Word Formats/Ranges

This table shows the valid formats and minimum/maximum data ranges provided by the module.

Valid Output Data

Raw/

Normal Operating Output Range

-10…10V DC -10.5…10.5V

0…5V DC -0.5…5.25V -500…5,250 -1638…17,202 0…10V DC -0.5…10.5V -500…10,500 -819…17,202 -500…10,500 1…5V DC 0.5…5.25V 500…5,250 -2048…17,407 -1250…10,625 0…20 mA 0…21 mA 0…21,000 0…17,202 0…10,500 4…20 mA 3.2…21 mA 3,200… 21,000 -819…17,407 -500…10,625

(1) Includes amounts over and under normal operating range. (2) 1 count = 0.001V or 0.001 mA. (3) 1 count = 0.01%.

Full Range

Proportional Data

(1)

Full Range

-32,767… 32,767

Engineering

(2)

Units Full Range Normal

Operating Range

-10,500…10,500

0…16,383

Scaled-for-PID

Full Range

-410…16,793 -10,000…

Percent Range

Normal Operating Range

10,000

0…10,000

(3)

Full Range

-10,500…10,500

-1000…10,500

Publication 1769-UM020A-EN-P - December 2009 41

Chapter 3 Module Data, Status, and Channel Configuration

Notes:

42 Publication 1769-UM020A-EN-P - December 2009

Introduction

Chapter

Module Diagnostics and Troubleshooting

Topic Page

Safety Considerations 43 Power Cycle Diagnostics 45 Channel Diagnostics 45 Non-critical versus Critical Module Errors 45 Module Error Definition Table 46 Error Codes 47 Module Inhibit Function 50 Contacting Rockwell Automation 50

Safety Considerations

Safety considerations are an important element of proper troubleshooting procedures. Actively thinking about the safety of yourself and others, as well as the condition of your equipment, is of primary importance.

The following sections describe several safety concerns you should be aware of when troubleshooting your control system.

ATTENTION

Never reach into a machine to actuate a switch because unexpected motion can occur and cause injury.

Remove all electrical power at the main power-disconnect switches before checking electrical connections or inputs/outputs causing machine motion.

Power Status Indicator

When the green status indicator on the analog module is illuminated, it indicates that power is applied to the module and the module is operating without error. A module that has sensed a fault condition or is being held in reset by the system’s controller does not illuminate the module’s status indicator even though power is still applied.

43Publication 1769-UM020A-EN-P - December 2009 43

Chapter 4 Module Diagnostics and Troubleshooting

Activate Devices When Troubleshooting

When troubleshooting, never reach into the machine to actuate a device. Unexpected machine motion could occur.

Stand Clear of the Machine

When troubleshooting any system problem, have all personnel remain clear of the machine. The problem could be intermittent, and sudden unexpected machine motion could occur. Have someone ready to operate an emergency stop switch in case it becomes necessary to shut off power to the machine.

Program Alteration

There are several possible causes of alteration to the user program, including extreme environmental conditions, electromagnetic interference (EMI), improper grounding, improper wiring connections, and unauthorized tampering. If you suspect a program has been altered, check it against a previously saved program on an EEPROM or UVPROM memory module.

Safety Circuits

Circuits installed on the machine for safety reasons, like over-travel limit switches, stop push buttons, and interlocks, should always be hard-wired to the master control relay. These devices must be wired in series so that when any one device opens, the master control relay is de-energized, thereby removing power to the machine. Never alter these circuits to defeat their function. Serious injury or machine damage could result.

44 Publication 1769-UM020A-EN-P - December 2009

Module Diagnostics and Troubleshooting Chapter 4

Power Cycle Diagnostics

Channel Diagnostics

When you cycle power to the module, a series of internal diagnostic tests are performed. These diagnostic tests must be successfully completed or the module status indicator remains off and a module error results and is reported to the controller.

Module Status Indicator

On Proper Operation No action required. Off Module Fault Cycle power. If condition persists, replace the

When any channel is enabled, the module performs a diagnostic check to see that the channel has been properly configured. In addition, the module checks each channel during every conversion cycle for over-range (high clamp) and under-range (low clamp) conditions.

Condition Corrective Action

module. Call your local distributor or Rockwell Automation for assistance.

Output Clamp Detection

Whenever data is sent to an output that meets or exceeds that channel’s configured clamp limits, an over-range (high clamp) or under-range (low clamp) error is indicated in the Input Data file.

Non-critical versus Critical Module Errors

Non-critical module errors are typically recoverable. Channel errors (over-range or under-range errors) are non-critical. Non-critical errors are indicated in the module input data table.

Critical module errors are conditions that prevent normal or recoverable operation of the system. When these types of errors occur, the system typically leaves the run or program mode of operation until the error can be dealt with.

Critical module errors are indicated in Error Codes

on page 47.

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Chapter 4 Module Diagnostics and Troubleshooting

Module Error Definition

Module errors are expressed in two fields as four-digit Hex format with the most significant digit as don’t care and irrelevant. The two

Table

Don’t Care Bits Module Error Extended Error Information

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

00 0 0 000000000000

Hex Digit 4 Hex Digit 3 Hex Digit 2 Hex Digit 1

fields are Module Error and Extended Error Information.

Module Error Field

The purpose of the module error field is to classify module errors into three distinct groups, as described in the table below. The type of error determines what kind of information exists in the extended error information field. Refer to your controller manual for details.

Error Type Module Error

Field Value Bits 11…09

(Bin)

Description

No Errors 000 No error is present. The extended error field holds

no additional information.

Hardware Errors

Configuration Errors

001 General and specific hardware error codes are

specified in the extended error information field.

010 Module-specific error codes are indicated in the

extended error field. These error codes correspond to options that you can change directly. For example, the input range or input filter selection.

Extended Error Information Field

Depending upon the value in the module error field, the extended error information field can contain error codes that are module-specific or common to all 1769 analog modules.

TIP

If no errors are present in the module error field, the extended error information field will be set to zero.

46 Publication 1769-UM020A-EN-P - December 2009

Module Diagnostics and Troubleshooting Chapter 4

Error Codes

Extended Error Codes for Hardware Errors

Error Type Hex

Equivalent

No Error X000 000 0 0000 0000 No error General Common

Hardware Error

Hardwarespecific Error

(1) X represents the Don’t Care digit. Module hardware error codes are typically presented in their Hex Equivalent by the programming software.

(1)

X200 001 0 0000 0000 General hardware error; no additional information X201 001 0 0000 0001 Power-up reset state X300 001 1 0000 0000 General hardware error X301 001 1 0000 0001 Microprocessor hardware error X302 001 1 0000 0010 D/A converter communication error

Error codes can help troubleshoot your module.

Module

Error Code

Binary Binary

Extended Error

Information

Code

Error Description

During system configuration, if you set the fields in the configuration file to invalid or unsupported values, the module generates a configuration error and the system controller enters a Fault condition. The invalid configuration data must be corrected and the program downloaded again for the system to enter Run mode. You cannot change module configuration data while the system is in Run mode. Any changes are ignored by the module, which continues to operate with its previous configuration.

Extended Error Codes for Configuration Errors

(1)

Hex Equivalent

X400 010 0 0000 0000 General configuration error; reserve bits set to 1 X401 010 0 0000 0001 Invalid output range selected (channel 0) X402 010 0 0000 0010 Invalid output range selected (channel 1) X403 010 0 0000 0011 Invalid output range selected (channel 2) X404 010 0 0000 0100 Invalid output range selected (channel 3) X405 010 0 0000 0101 Invalid output format selected (channel 0) X406 010 0 0000 0110 Invalid output format selected (channel 1) X407 010 0 0000 0111 Invalid output format selected (channel 2) X408 010 0 0000 1000 Invalid output format selected (channel 3) X409 010 0 0000 1001 Invalid fault value (channel 0) X40A 010 0 0000 1010 Invalid fault value (channel 1) X40B 010 0 0000 1011 Invalid fault value (channel 2) X40C 010 0 0000 1100 Invalid fault value (channel 3)

Module

Error Code

Binary Binary

Extended Error

Information Code

Error Description

Publication 1769-UM020A-EN-P - December 2009 47

Chapter 4 Module Diagnostics and Troubleshooting

Extended Error Codes for Configuration Errors

(1)

Hex Equivalent

X40D 010 0 0000 1101 Invalid program/idle value (channel 0)

X40E 010 0 0000 1110 Invalid program/idle value (channel 1) X40F 010 0 0000 1111 Invalid program/idle value (channel 2) X410 010 0 0001 0000 Invalid program/idle value (channel 3) X411 010 0 0001 0001 Invalid clamp value (channel 0) X412 010 0 0001 0010 Invalid clamp value (channel 1) X413 010 0 0001 0011 Invalid clamp value (channel 2) X414 010 0 0001 0100 Invalid clamp value (channel 3) X415 010 0 0001 0101 Invalid ramp rate (channel 0) X416 010 0 0001 0110 Invalid ramp rate (channel 1) X417 010 0 0001 0111 Invalid ramp rate (channel 2) X418 010 0 0001 1000 Invalid ramp rate (channel 3)

Module

Error Code

Binary Binary

Extended Error

Information Code

Error Description

(1) X represents the Don’t Care digit. Module configuration error codes are typically presented in their Hex Equivalent by the programming software.

Invalid Output Range Selected

These error codes occur when the 4-bit output range code for the indicated channel is not one of the assigned output range codes for the module.

See Bit Definitions for Type/Range and Data Format Configuration

Word s on page 34 for details on the assigned output range codes for

the module.

Invalid Output Format Selected

These error codes occur when the 3-bit output format code for the indicated channel is not one of the assigned output format codes for the module.

See Bit Definitions for Type/Range and Data Format Configuration

Word s on page 34 for details on the assigned output range codes for

the module.

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Module Diagnostics and Troubleshooting Chapter 4

Invalid Fault Value Selected

These error codes occur when the value entered is not within the full-range limits of the indicated channel, as determined by the channel’s output range/type and format setting, or the value entered is not within the limits set by the indicated channel’s output clamp values.

Invalid Program/Idle Value Selected

(1)

Invalid Clamp Value Selected

These error codes occur when the value entered is not within the full-range limits of the indicated channel, as determined by the channel’s output range/type and format setting, or if the low clamp value is greater than the high clamp value.

Invalid Ramp Rate Selected

These codes occur when the value entered is less than 1% or more than 100% of the total full-range counts for the indicated channel, as determined by the channel’s output range/type and format setting, unless output ramping is disabled for the indicated channel. In that case, the ramp rate may be set to zero without causing a configuration error.

(1)

(1) Some controllers do not support alternate output states. Refer to your controller user manual to determine

whether alternate output statues and these associated functions are supported.

Publication 1769-UM020A-EN-P - December 2009 49

Chapter 4 Module Diagnostics and Troubleshooting

Module Inhibit Function

Contacting Rockwell Automation

CompactLogix controllers support the module inhibit function. See your controller manual for details.

Whenever the module is inhibited, it continues to provide information about changes at its inputs to the 1769 Compact Bus Master (for example, a CompactLogix controller).

If you need to contact Rockwell Automation for assistance, please have the following information available:

• A clear statement of the problem, including a description of

what the system is actually doing. Note the state of the status indicators; also note input and output image words for the module.

• List of remedies you have already tried.

• Controller type and firmware number (see the label on the

controller.)

• Hardware types in the system, including all I/O modules.

• Fault code, if the controller is faulted.

See the back cover for contact information.

50 Publication 1769-UM020A-EN-P - December 2009

Introduction

General Specifications – 1769-OF4

Appendix

Specifications

Topic Page

General Specifications – 1769-OF4 51 Output Specifications – 1769-OF4 52 Certifications – 1769-OF4 53 Replacement Parts 53

Attribute 1769-OF4

Dimensions (HxWxD), approx. 118 x 35 x 87 mm (4.65 x 1.38 x 3.43 in.)

Height including mounting tabs is 138 mm (5.43 in.)

Shipping weight (with carton), approx.

Temperature, storage -40…85 °C (-40…185 °F) Temperature, operating 0 …60 °C (32…140 °F) Humidity, operating 5…95% noncondensing Altitude, operating 2000 m (6561 ft) Vibration, operating 10…500 Hz, 5 g, 0.030 in. peak-to-peak Shock, operating 30 g, 11 ms panel mounted (20 g, 11 ms DIN rail

Shock, nonoperating 40 g panel mounted (30 g DIN rail mounted) Bus current draw, max 120 mA @ 5V DC; 170 mA @ 24V DC Heat dissipation 2.86 Total Watts (The Watts per point plus the minimum

Module OK indicator On: module has power, has passed internal diagnostics,

280 g (0.61 lb)

mounted)

Watts with all points energized.)

and is communicating over the bus

Off: Any of the above is not true

System power supply distance rating

Cable, recommended Belden 8761 (shielded) ESD immunity (IEC1000-4-2) 4 kV contact, 8 kV air, 4 kV indirect Radiated immunity (IEC1000-4-3) 10V/m, 80…1000 MHz, 80% amplitude modulation Fast transient burst (IEC1000-4-4) 2 kV, 5 kHz Surge immunity (IEC1000-4-5) 1 kV galvanic gun Conducted immunity (IEC1000-4-6) 10V, 0.15…80 MHz

Publication 1769-UM020A-EN-P - December 2009 51

The module may not be more than 8 modules away from the system power supply

Appendix A Specifications

Attribute 1769-OF4

Vendor I.D. code 1 Product type code 10 Product code 48 Input words 5 Output words 5 Configuration words 32

Output Specifications – 1769-OF4

Attribute 1769-OF4

Analog normal operating

(1)

ranges Full scale analog ranges

(1)

0…20 mA, 4…20 mA, ±10V DC, 0…10V DC, 0…5V DC, 1…5V DC

0…21 mA, 3.2…21 mA, ±10.5V DC, -0.5…10.5V DC,

-0.5… 5.25V DC, 0.5… 5.25V DC Number of outputs 4 single-ended, voltage or current Digital resolution across full

15 bits plus sign unipolar and bipolar

range Conversion rate (all channels)

max Step response to 63%

(2)

Interrupts not enabled: 2.5 ms Interrupts enabled: 3.8 ms

2.9 ms Resistive load Current: 0…600 Ω (includes wire resistance)

Voltage: 1 kΩ or greater

Inductive load, max. 0.1 mH (current loads), 1.0 µF (voltage loads) Field Calibration None required

Overall Accuracy

(1) The over- or under-range flag will come on when either the High Clamp or the Low Clamp values are exceeded.

When either range flag is set, the module clamps the corresponding channel’s output to the High Clamp or the Low Clamp value. Unless latched, the flag automatically resets when directed to a value between the High Clamp and the Low Clamp values. The output channel value always returns to normal operation when directed to a value allowed by the High Clamp and Low Clamp values (even if latching of the Clamp status bits is enabled).

(2) Step response is the period of time between when the D/A converter was instructed to go from minimum to full

range until the device is at 63% of full range.

(3) Includes offset, gain, drift, non-linearity, and repeatability error terms.

(3)

0.5% full scale at 25 °C (77 °F)

52 Publication 1769-UM020A-EN-P - December 2009

Certifications – 1769-OF4

Specifications Appendix A

Certification 1769-OF4

Agency certification • C-UL certified (under CSA C22.2 No. 142)

• UL 508 listed

• CE compliant for all applicable directives

Hazardous environment class Class I, Division 2, Hazardous Location, Groups A, B, C, D

(UL 1604, C-UL under CSA C22.2 No. 213)

Radiated and conducted emissions

EN50011 Class A

Replacement Parts

The module has these replacement parts:

• Terminal block, catalog number 1769-RTBN10 (one per kit)

• Door, catalog number 1769-RD (two per kit)

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Appendix A Specifications

Notes:

54 Publication 1769-UM020A-EN-P - December 2009

Introduction

Appendix

Module Addressing and Configuration with MicroLogix 1500 Controller

Topic Page

Module Input Image 55 Module Configuration File 56 Configure Analog I/O Modules in a MicroLogix 1500 System 57

This appendix examines the modules’ addressing scheme and describes module configuration using RSLogix 500 software and a MicroLogix 1500 controller.

Module Input Image

The module’s input image file represents status bits and data echo words. Input word 0 holds the status bits for the analog output channels. Input words 1…4 hold the data that represents the directed value of the analog outputs for channels 0…3. These data words are valid only when the channel is enabled and there are no errors.

For example, to obtain the general status of channel 2 of the analog module located in slot 3, use address I:3.0/2.

Bit

Input File Type

Slot

Word

I:3.0/2

Element Delimiter

MicroLogix 1500

0123

Word Delimiter

Compact I/O

Bit Delimiter

End Cap

Compact I/O

Slot Number

TIP

Publication 1769-UM020A-EN-P - December 2009 55

The end cap does not use a slot address.

Appendix B Module Addressing and Configuration with MicroLogix 1500 Controller

Module Output Image

The module’s output image file represents data words and unlatch control bits. Output words 0…3 are written with output data that represents the analog value commanded to the module’s output channels 0…3. These data words only represent the state of the module’s outputs when the channel is enabled and there are no errors. Output word 4 is written to control the unlatching of the over-range and under-range status bits.

For example, to control the unlatching of a latched low clamp status bit of channel 0 of the module located in slot 3, use address O:3.4/1.

Bit

Output File Type

Slot

Word

O:3.4/1

Element Delimiter

MicroLogix 1500

Word Delimiter

Compact I/O

Bit Delimiter

End Cap

Compact I/O

Module Configuration File

0123

Slot Number

TIP

The end cap does not use a slot address.

The configuration file contains information that you use to define the way a specific channel functions. The configuration file is explained in more detail in Chapter

The configuration file is modified using the programming software configuration screen.

For an example of module configuration using RSLogix 500 software, see Configure Analog I/O Modules in a MicroLogix 1500 System

TIP

The RSLogix 500 configuration default is to disable each analog input and output channel. For improved analog module

performance, disable any unused channels.

56 Publication 1769-UM020A-EN-P - December 2009

Module Addressing and Configuration with MicroLogix 1500 Controller Appendix B

Software Configuration Channel Defaults

Parameter Default Setting

Enable/Disable Channel Disabled Input/Output Range -10…10V DC Data Format Raw/Proportional

Configure Analog I/O Modules in a MicroLogix 1500 System

This example takes you through configuring your 1769-OF4 module with RSLogix 500 programming software. This application example assumes your module is installed as expansion I/O in a MicroLogix 1500 system, that RSLinx software is properly configured, and a communication link has been established between the MicroLogix controller and RSLogix 500 software. You must program the 1769-OF4 module by using the Generic Module method.

1. From the File menu, choose New to create a new project.

2. Type a name for the project in the Processor Name field.

3. Select your MicroLogix 1500 controller from the list and click

OK.

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Appendix B Module Addressing and Configuration with MicroLogix 1500 Controller

4. Double-click I/O Configuration in the project tree to open the

I/O Configuration dialog box.

5. On the I/O Configuration dialog box, select the slot position

where you want to add your module.

6. In the Current Cards Available list, double-click Other – Requires

I/O Card Type ID to add the module to the project in the indicated slot position.

58 Publication 1769-UM020A-EN-P - December 2009

Module Addressing and Configuration with MicroLogix 1500 Controller Appendix B

7. Enter the module identification parameters as shown.

8. Configure the module's channels by double-clicking the

newly-added module and then clicking the Generic Extra Data Config tab.

9. Change the Radix to Hex/BCD.

10. Enter each of the 32 Configuration Data File words (in

hexidecimal format) as required.

See Configuration Data File

on page 33 for details on setting up

the configuration data.

11. When you are finished entering the data, click Apply and then

OK.

12. Download the project to the MicroLogix 1500 controller.

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Appendix B Module Addressing and Configuration with MicroLogix 1500 Controller

Notes:

60 Publication 1769-UM020A-EN-P - December 2009

Introduction

Appendix

Configuration Using the RSLogix 5000 Generic Profile for CompactLogix Controllers

Topic Page

Add the Module to Your Project 61 Configure Each I/O Module 64

If the Add-on Profile for the 1769-OF4 module is not yet available, follow this procedure to configure your module by using a generic profile.

Add the Module to Your Project

1. Start RSLogix 5000 software.

2. From the File menu, choose New to open an existing project or

start a new project.

3. If this is a new project select a CompactLogix controller, type a

name for the controller, and click OK.

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Appendix C Configuration Using the RSLogix 5000 Generic Profile for CompactLogix Controllers

4. In the controller organizer, right-click CompactBus Local, and

choose New Module.

5. Expand the Other group and select the 1769-MODULE Generic

Profile.

6. Click OK.

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Configuration Using the RSLogix 5000 Generic Profile for CompactLogix Controllers Appendix C

7. Type a Name for the module and an optional Description.

8. Select the slot number.

The slot number begins with the first available slot number, 1, and increments automatically for each subsequent Generic Profile you configure.

9. Enter the Comm Format, Assembly Instance numbers and their

associated sizes, as shown above.

10. Click OK.

11. On the Connection tab, you can choose to inhibit the module or

configure the module to fault if the connection fails.

TIP

Refer to the Help screens in RSLogix 5000 software, under Connection Tab Overview for a complete explanation of these features.

12. Click OK.

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Appendix C Configuration Using the RSLogix 5000 Generic Profile for CompactLogix Controllers

Configure Each I/O Module

Once you have created Generic Profiles for each analog I/O module in your system, you must then enter configuration information into the Tag database that has been automatically created from the Generic Profile information you entered for each of these modules. This configuration information is downloaded to each module at program download, at going to run, and at power cycle.

Tag addresses are automatically created for configured I/O modules. All local I/O addresses are preceded by the word Local. These addresses have the following format:

• Input Data: Local:s.I

• Output Data: Local:s.O

• Configuration Data: Local:s.C

Where s is the slot number assigned the I/O modules in the Generic Profiles.

1. Open the Controller Tag database by double-clicking Controller

Tags in the upper portion of the controller organizer.

2. Open the configuration tag for your module by clicking on the

plus sign to the left of its configuration tag in the tag database.

3. To configure the input modules in slot 1, click the plus sign left

of Local:1.C.

4. Click the plus sign to the left of Local:1.C.Data to reveal the 32

data words where the configuration data may be entered for the module.

64 Publication 1769-UM020A-EN-P - December 2009

Appendix

Two’s Complement Binary Numbers

The controller memory stores 16-bit binary numbers. Two’s complement binary is used when performing mathematical calculations internal to the controller. Analog input values from the analog modules are returned to the controller in 16-bit two’s complement binary format. For positive numbers, the binary notation and two’s complement binary notation are identical.

As indicated in the figure on the next page, each position in the

number has a decimal value, beginning at the right with 2

at the left with 2

. Each position can be 0 or 1 in the controller memory. A 0 indicates a value of 0; a 1 indicates the decimal value of the position. The equivalent decimal value of the binary number is the sum of the position values.

and ending

Positive Decimal Values

The far left position is always 0 for positive values. This limits the maximum positive decimal value to 32,767 (all positions are 1 except the far left position).

Positive Decimal Values

1 x 2 = 16384

1 x 2 = 8192

1 x 2 = 4096

1 x 2 = 2048

1 x 2 = 1024

1 x 2 = 512

1 x 2 = 256

1 x 2 = 128

1 x 2 = 64

1 x 2 = 32

1 x 2 = 16

1 x 2 = 8

1 x 2 = 4

1 x 2 = 2

0111111111111111

0 x 2 = 0

This position is always 0 for positive numbers.

16384

8192 4096 2048 1024

1 x 2 = 1

32767

512 256 128

64 32 16

8 4 2 1

EXAMPLE

0000 1001 0000 1110 = 2 2048+256+8+4+2 = 2318

0010 0011 0010 1000 = 2

11+28+23+22+21

13+29+28+25+23

8192+512+256+32+8 = 9000

Publication 1769-UM020A-EN-P - December 2009 65

Appendix D Two’s Complement Binary Numbers

Negative Decimal Values

In two’s complement notation, the leftmost position is always 1 for negative values. The equivalent decimal value of the binary number is obtained by subtracting the value of the leftmost position, 32,768, from the sum of the values of the other positions. All positions are 1 and the value is 32,767 - 32,768 = -1.

Negative Decimal Values

1 x 2 = 16384

1 x 2 = 8192

1 x 2 = 4096

1 x 2 = 2048

1 x 2 = 1024

1 x 2 = 512

1 x 2 = 256

1 x 2 = 128

1 x 2 = 64

1 x 2 = 32

1 x 2 = 16

1 x 2 = 8

1 x 2 = 4

1 x 2 = 2

1111111111111111

1 x 2 = 32768

This position is always 1 for negative numbers.

16384

1 x 2 = 1

32767

8192 4096 2048 1024

512 256 128

64 32 16

8 4 2 1

EXAMPLE

1111 1000 0010 0011 = (2

14+213+212+211+25+21+20

(16384+8192+4096+2048+32+2+1) - 32768 = 30755 - 32768 = -2013

) - 215 =

66 Publication 1769-UM020A-EN-P - December 2009

Glossary

The following terms and abbreviations are used throughout this manual. For definitions of terms not listed here refer to the Allen-Bradley Industrial Automation Glossary, publication AG-7.1

alternate last state – A configuration selection that instructs the module to convert a user-specified value from the channel fault or program/idle word to the output value when the module enters the Fault or Program mode.

attenuation – The reduction in the magnitude of a signal as it passes through a system.

bus connector – A 16-pin male and female connector that provides electrical interconnection between the modules.

channel – Refers to analog output interfaces available on the module’s terminal block. Each channel is configured for connection to a variable voltage or current input or output device, and has its own data and diagnostic status words.

configuration word – Contains the channel configuration information needed by the module to configure and operate each channel.

D/A converter – Refers to the digital-to-analog converter inherent to the module. The converter produces an analog DC voltage or current signal whose instantaneous magnitude is proportional to the magnitude of a digital value.

dB – (decibel) A logarithmic measure of the ratio of two signal levels.

data echo – The digital value currently being converted by the D/A

converter and shown in words 1…4 of the module’s input data file. Under normal operating conditions, the data echo value is the same value that is being sent from the bus master to the output module.

data word – A 16-bit integer that represents the value of the analog output channel. The channel data word is valid only when the channel is enabled and there are no channel errors. When the channel is disabled the channel data word is cleared (0).

differential operation – The difference in voltage between a channel’s positive terminal and negative terminal.

full scale – The magnitude of voltage or current over which normal operation is permitted.

full scale error – (gain error) The difference in slope between the actual and ideal analog transfer functions.

Publication 1769-UM020A-EN-P - December 2009 67

Glossary

full scale range – (FSR) The difference between the maximum and minimum specified analog input values.

hold last state – A configuration selection that instructs the module to keep the outputs at the last converted value prior to the condition that caused the control system to enter the Fault or Program mode.

input image – The input from the module to the controller. The input image contains the module data words and status bits.

LSB – (Least Significant Bit) The bit that represents the smallest value within a string of bits. For analog modules, 16-bit, two’s complement binary codes are used in the I/O image in the card.

For analog inputs, the LSB is defined as the rightmost bit, bit 0, of the 16-bit field. For analog outputs, the three rightmost bits are not significant, and the LSB is defined as the third bit from the right, bit 2, of the 16-bit field.

linearity error – An analog input or output is composed of a series of voltage or current values corresponding to digital codes. For an ideal analog output, the values lie in a straight line spaced by a voltage or current corresponding to 1 LSB. Any deviation of the converted input or actual output from this line is the linearity error of the output. The linearity is expressed in percent of full scale output. See the variation from the straight line due to linearity error (exaggerated) in the example below.

Actual Transfer Function

Ideal Transfer

number of significant bits – The power of two that represents the total number of completely different digital codes an analog signal can be converted into or generated from.

module scan time – See module update time

module update time – The time required for the module to receive, convert, and drive all output data for the enabled output channels.

multiplexer – A switching system that allows several signals to share a common A/D or D/A converter.

normal operating range – Input or output signals are within the configured range.

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Glossary

overall accuracy – The worst-case deviation of the output voltage or current from the ideal over the full output range is the overall accuracy.

Gain error, offset error, and linearity error all contribute to output channel accuracy.

output accuracy – The difference between the actual analog output value and what is expected, when a given digital code is applied to the d/a converter. Expressed as a ± percent of full scale. The error will include gain, offset and drift elements, and is defined at 25 °C (77 °F), and also over the full operating temperature range, 0…60 °C (0…140 °F).

output image – The output from the controller to the module outputs. The output image contains the digital output data to be converted to analog output signals by the module.

repeatability – The closeness of agreement among repeated measurements of the same variable under the same conditions.

resolution – The smallest detectable change in a measurement, typically expressed in engineering units (for example, 1 mV) or as a number of bits. For example a 12-bit system has 4096 possible output states. It can therefore measure 1 part in 4096.

status word – Contains status information about the channel’s current configuration and operational state. You can use this information in your ladder program to determine whether the channel data word is valid.

update time – See module update time

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Glossary

Notes:

70 Publication 1769-UM020A-EN-P - December 2009

Index

Numerics

1769-ADN

user manual 8

abbreviations 67 alternate last state

definition 67

attenuation

definition 67

bus connector

definition 67 locking 17

bus interface 11

channel

definition 67 diagnostics 45 status indicator 11

clamp high data value word 37 clamp low data value word 37 clamping 37 configuration errors 47 configuration word

definition 67

contacting Rockwell Automation 50

D/A converter

definition 67

data echo

definition 67

data word

definition 67

decibel. See dB. definition of terms 67 DeviceNet adapter

user manual publication number 8

differential operation

definition 67

DIN rail mounting 19

electrical noise 15 end cap terminator 17 error codes 47 error definitions 46 errors

configuration 47 critical 45 extended error information field 46 hardware 47 module error field 46 non-critical 45

extended error codes 47 extended error information field 46

fault condition

at power-up 11

fault mode selection 36 fault value word 36 finger-safe terminal block 24 FSR. See full scale range. full scale

definition 67

full scale error

definition 67

full scale range

definition 68

gain error. See full scale error. generic profile

configuration example 61

grounding 20

hardware errors 47 heat considerations 15 hold last state

definition 68 fault mode 36 program mode 35

inhibit function 50 input image

definition 68

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Index

installation 13-20

grounding 20 heat and noise considerations 15

latch clamp status selection 37 least significant bit. See LSB. LED. See status indicators. linearity error

definition 68

LSB

definition 68

module error field 46 module inhibit function 50 module interrupt

high clamp alarm 37 low clamp alarm 37

module scan time

definition 68

module update time

definition 68

mounting 17-19 multiplexer

definition 68

negative decimal values 66 number of significant bits

definition 68

operation

system 11

output data formats

engineering units 41 percent range 41 raw/proportional data 40 scaled for PID 41 valid formats/ranges 41

output image

definition 69

output ramping 38 output range/type selection 40 overall accuracy

definition 69

panel mounting 18-19 positive decimal values 65 power-up diagnostics 45 power-up sequence 11 program alteration 44 program mode selection 35 program to fault enable selection 36 program value word 35

ramp rate

definition 38 determination 39

Ramp to Fault Mode

definition 38

removing terminal block 23 replacing a module 19 resolution

definition 69

RSLogix 500 software

configuration example 55

RSLogix 5000 software

configuration example 61

safety circuits 44 scan time 68 spacing 17 status indicators status word

definition 69

system operation 11

terminal block

removing 23 wiring 24

terminal screw torque 25 troubleshooting

safety considerations 43

two’s complement binary numbers 65

wire size 25 wiring 13

module 25 routing considerations 15 terminal block 24

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Notes:

Index

Publication 1769-UM020A-EN-P - December 2009 73

Index

Notes:

74 Publication 1769-UM020A-EN-P - December 2009

Rockwell Automation Support

Rockwell Automation provides technical information on the Web to assist you in using its products. At

http://www.rockwellautomation.com/support/

application notes, sample code and links to software service packs, and a MySupport feature that you can customize to make the best use of these tools.

For an additional level of technical phone support for installation, configuration, and troubleshooting, we offer TechConnect support programs. For more information, contact your local distributor or Rockwell Automation representative, or visit

http://www.rockwellautomation.com/support/

Installation Assistance

If you experience an anomoly within the first 24 hours of installation, review the inform ation that's contained in this manual. You can contact Customer Support for initial help in getting your product up and running.

United States or Canada 1.440.646.3434 Outside United States or

Canada

Use the Worldwide Locator or contact your local Rockwell Automation representative.

, you can find technical manuals, a knowledge base of FAQs, technical and

at http://www.rockwellautomation.com/support/americas/phone_en.html,

New Product Satisfaction Return

Rockwell Automation tests all of its products to ensure that they are fully operational when shipped from the manufacturing facility. However, if your product is not functioning and needs to be returned, follow these procedures.

United States Contact your distributor. You must provide a Customer Support case number (call the phone number

above to obtain one) to your distributor to complete the return process.

Outside United States Please contact your local Rockwell Automation representative for the return procedure.

Documentation Feedback

Your comments will help us serve your documentation needs better. If you have any suggestions on how to improve this document, complete this form, publication RA-DU002

, available at http://www.rockwellautomation.com/literature/.

Publication 1769-UM020A-EN-P - December 2009 74

Rockwell Automation 1769-OF4 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Preface

Introduction

About This Publication

Who Should Use This Publication

Additional Resources

Introduction

Module Description

System Overview

Module Operation

Introduction

General Considerations

Assemble the Compact I/O System

Mounting the Module

Replace a Single Module Within a System

Grounding the Module

System Wiring Guidelines

Label the Terminals

Remove the Finger-safe Terminal Block

Wire the Finger-safe Terminal Block

Wire the Modules

Introduction

Module Addressing

Input Data File

Output Data File

Configuration Data File

Channel Configuration

Introduction

Safety Considerations

Power Cycle Diagnostics

Channel Diagnostics

Non-critical versus Critical Module Errors

Error Codes

Module Inhibit Function

Contacting Rockwell Automation

Introduction

General Specifications – 1769-OF4

Output Specifications – 1769-OF4

Certifications – 1769-OF4

Replacement Parts

Introduction

Module Input Image

Module Output Image

Module Configuration File

Configure Analog I/O Modules in a MicroLogix 1500 System

Introduction

Add the Module to Your Project

Configure Each I/O Module

Two’s Complement Binary Numbers

Positive Decimal Values

Negative Decimal Values

Glossary

Index