Rockwell Automation Allen-Bradley 1769-OF4 User Manual
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Rockwell Automation Allen-Bradley 1769-OF4 User Manual

Compact i/o analog output module
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Compact I/O Analog Output Module
Catalog Number 1769-OF4
User Manual

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Summary of Contents for Rockwell Automation Allen-Bradley 1769-OF4

  • Page 1 Compact I/O Analog Output Module Catalog Number 1769-OF4 User Manual...
  • Page 2 Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach dangerous temperatures. 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.

  • Page 3: Table Of Contents

    Table of Contents Preface Introduction ........7 About This Publication .
  • Page 4 Module Inhibit Function ......50 Contacting Rockwell Automation ..... 50...
  • Page 5 Table of Contents Appendix A Specifications Introduction ........51 General Specifications –...
  • Page 6 Table of Contents Publication 1769-UM020A-EN-P - December 2009...

  • Page 7: Preface Introduction

    Preface Introduction Read this preface to familiarize yourself with the rest of the manual. Topic Page About This Publication Who Should Use This Publication Additional Resources About This Publication This manual is a guide for using the Compact I/O Analog Output Module, catalog number 1769-OF4.

  • Page 8: Additional Resources

    In-depth information on grounding and wiring Allen-Bradley publication 1770-4.1 programmable controllers. You can view or download publications at http://literature.rockwellautomation.com. To order paper copies of technical documentation, contact your local Rockwell Automation distributor or sales representative. Publication 1769-UM020A-EN-P - December 2009...

  • Page 9: Chapter 1 Introduction

    Chapter Overview Introduction Topic Page Module Description System Overview Module Operation 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...
  • Page 10 Chapter 1 Overview Hardware Features Analog DANGER Do Not Remove RTB Under Power 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 ANLG Ensure Adjacent...

  • Page 11: System Overview

    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.
  • Page 12 Chapter 1 Overview The channel status words are described in the Input Data File on page 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.

  • Page 13: Chapter 2 Introduction

    Chapter Installation and Wiring Introduction Topic Page 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 General Considerations The Compact I/O system is suitable for use in an industrial...

  • Page 14: Hazardous Location Considerations

    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. EXPLOSION HAZARD ATTENTION •...

  • Page 15: Removing Power

    Installation and Wiring Chapter 2 Removing Power Remove power before removing or inserting this module. When ATTENTION 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: •...

  • Page 16: Assemble The Compact I/O System

    Chapter 2 Installation and Wiring Assemble the Compact I/O The module can be attached to the controller or an adjacent I/O module before or after mounting. System For mounting instructions, see Panel Mounting By Using the Dimensional Template on page 18, or Mount to a DIN Rail on page 19.

  • Page 17: Mounting The Module

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

  • Page 18: Mount To A Panel

    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).

  • Page 19: Mount To A Din Rail

    Installation and Wiring Chapter 2 6. Attach the modules to the panel by using the mounting screws. 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. 7.

  • Page 20: Grounding The Module

    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.

  • Page 21: System Wiring Guidelines

    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. •...

  • Page 22: Effect Of Transducer/Sensor And Cable Length Impedance On Voltage Output Accuracy

    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.

  • Page 23: Label The Terminals

    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.

  • Page 24: Wire The Finger-Safe Terminal Block

    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.

  • Page 25: Wire Size And Terminal Screw Torque

    Installation and Wiring Chapter 2 Wire Size and Terminal Screw Torque Each terminal accepts up to two wires. Wire Type Wire Size Terminal Screw Torque Retaining Screw Torque Solid Cu-90 °C (194 °F) 0.68 N•m (6 lb•in) 0.46 N•m (4.1 lb•in) 0.325…2.080 mm (22…14 AWG) Stranded...
  • Page 26 Chapter 2 Installation and Wiring 3. Strip about 5 mm (3/16 in.) of insulation away to expose the end of the wire. Be careful when stripping wires. Wire fragments that ATTENTION fall into a module could cause damage when you cycle power.
  • Page 27 Installation and Wiring Chapter 2 Wiring Analog Outputs Terminal Block V out 3+ I out 3+ V out 2+ Voltage Load I out 2+ ANLG Com ANLG Com Earth Ground V out 0+ I out 0+ Current Load V out 1+ I out 1 + Earth Ground Analog outputs may fluctuate for less than a second when...
  • Page 28 Chapter 2 Installation and Wiring Notes: Publication 1769-UM020A-EN-P - December 2009...

  • Page 29: Introduction

    Chapter Module Data, Status, and Channel Configuration Introduction Topic Page Module Addressing Input Data File Output Data File Configuration Data File Channel Configuration Module Addressing This memory map shows the output, input, and configuration tables for the module. Memory Map Output Clamp Status Bits Word 0 Slot e...

  • Page 30: Input Image

    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.

  • Page 31: Input Data File

    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.

  • Page 32: Under-Range (Low Clamp) Status Bits (U0

    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.

  • Page 33: Configuration Data File

    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.

  • Page 34: Channel Configuration

    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.

  • Page 35: Enable/Disable Channel (Ec)

    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 0 mA. Program Mode (PM) This configuration selection provides individual Program mode selection for the output channels.

  • Page 36: Fault Mode (Fm)

    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.

  • Page 37: Clamping (Limiting)

    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.

  • Page 38: Output Ramping

    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.
  • Page 39 Module Data, Status, and Channel Configuration Chapter 3 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 Output Data Format Output Type/Range Total Counts in Full Scale Number of Counts for Real Units/Second for Every 1% of Ramp Rate Every 1% of Ramp Rate...

  • Page 40: Type/Range Selection

    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.
  • Page 41 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...
  • Page 42 Chapter 3 Module Data, Status, and Channel Configuration Notes: Publication 1769-UM020A-EN-P - December 2009...

  • Page 43: Module Diagnostics And Troubleshooting

    Non-critical versus Critical Module Errors Module Error Definition Table Error Codes Module Inhibit Function Contacting Rockwell Automation 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.

  • Page 44: Activate Devices When Troubleshooting

    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.

  • Page 45: Power Cycle Diagnostics

    Module Diagnostics and Troubleshooting Chapter 4 Power Cycle 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.

  • Page 46: Module Error Definition Table

    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 fields are Module Error and Extended Error Information. Don’t Care Bits Module Error Extended Error Information...

  • Page 47: Error Codes

    Module Diagnostics and Troubleshooting Chapter 4 Error Codes Error codes can help troubleshoot your module. Extended Error Codes for Hardware Errors Error Type Module Extended Error Error Description Error Information Equivalent Code Code Binary Binary No Error X000 0 0000 0000 No error General Common X200...

  • Page 48: Invalid Output Range Selected

    Chapter 4 Module Diagnostics and Troubleshooting Extended Error Codes for Configuration Errors Module Extended Error Error Description Hex Equivalent Error Code Information Code Binary Binary X40D 0 0000 1101 Invalid program/idle value (channel 0) X40E 0 0000 1110 Invalid program/idle value (channel 1) X40F 0 0000 1111 Invalid program/idle value (channel 2)

  • Page 49: Invalid Fault Value Selected

    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.

  • Page 50: Module Inhibit Function

    1769 Compact Bus Master (for example, a CompactLogix controller). Contacting Rockwell If you need to contact Rockwell Automation for assistance, please have the following information available: Automation • A clear statement of the problem, including a description of what the system is actually doing.

  • Page 51: Appendix A Introduction

    Appendix Specifications Introduction Topic Page General Specifications – 1769-OF4 Output Specifications – 1769-OF4 Certifications – 1769-OF4 Replacement Parts General Specifications – Attribute 1769-OF4 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 280 g (0.61 lb) (with carton), approx.

  • Page 52: Output Specifications - 1769-Of4

    Appendix A Specifications Attribute 1769-OF4 Vendor I.D. code Product type code Product code Input words Output words Configuration words Output Specifications – Attribute 1769-OF4 1769-OF4 Analog normal operating 0…20 mA, 4…20 mA, ±10V DC, 0…10V DC, 0…5V DC, 1…5V DC ranges 0…21 mA, 3.2…21 mA, ±10.5V DC, -0.5…10.5V DC, Full scale analog ranges...

  • Page 53: Certifications - 1769-Of4

    Specifications Appendix A Certifications – 1769-OF4 Certification 1769-OF4 • C-UL certified (under CSA C22.2 No. 142) Agency certification • 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.
  • Page 54 Appendix A Specifications Notes: Publication 1769-UM020A-EN-P - December 2009...

  • Page 55: Appendix B Introduction

    Appendix Module Addressing and Configuration with MicroLogix 1500 Controller Introduction Topic Page Module Input Image Module Configuration File Configure Analog I/O Modules in a MicroLogix 1500 System This appendix examines the modules’ addressing scheme and describes module configuration using RSLogix 500 software and a MicroLogix 1500 controller.

  • Page 56: Module Output Image

    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.
  • Page 57 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 This example takes you through configuring your 1769-OF4 module with RSLogix 500 programming software. This application example Modules in a assumes your module is installed as expansion I/O in a MicroLogix MicroLogix 1500 System...
  • Page 58 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.
  • Page 59 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.
  • Page 60 Appendix B Module Addressing and Configuration with MicroLogix 1500 Controller Notes: Publication 1769-UM020A-EN-P - December 2009...

  • Page 61: Appendix C Introduction

    Appendix Configuration Using the RSLogix 5000 Generic Profile for CompactLogix Controllers Introduction Topic Page Add the Module to Your Project Configure Each I/O Module 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.
  • Page 62 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. Publication 1769-UM020A-EN-P - December 2009...
  • Page 63 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.

  • Page 64: Configure Each I/O Module

    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.

  • Page 65: Positive Decimal Values

    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.

  • Page 66: Negative Decimal Values

    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.

  • Page 67: Glossary

    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.
  • Page 68 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.
  • Page 69 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.
  • Page 70 Glossary Notes: Publication 1769-UM020A-EN-P - December 2009...
  • Page 71 37 definition 67 configuration errors 47 full scale range configuration word definition 68 definition 67 contacting Rockwell Automation 50 gain error. See full scale error. generic profile D/A converter configuration example 61 definition 67 grounding 20 data echo...
  • Page 72 Index installation 13 grounding 20 panel mounting 18 heat and noise considerations 15 positive decimal values 65 power-up diagnostics 45 power-up sequence 11 latch clamp status selection 37 program alteration 44 least significant bit. See LSB. program mode selection 35 LED.
  • Page 73 Index Notes: Publication 1769-UM020A-EN-P - December 2009...
  • Page 74 Index Notes: Publication 1769-UM020A-EN-P - December 2009...
  • Page 76 Rockwell Automation representative. 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.

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