Analog Input Module Cat. No. 1771IFE

1 Analog Input ModuleCat. No. 1771 IFEUser ManualBecause of the variety of uses for the products described in thispublication, those responsible for the application and use of this controlequipment must satisfy themselves that all necessary steps have been takento assure that each application and use meets all performance and safetyrequirements, including any applicable laws, regulations, codesand illustrations, charts, sample programs and layout examples shown inthis guide are intended solely for example. Since there are many variablesand requirements associated with any particular installation, Allen-Bradleydoes not assume responsibility or liability (to include intellectual propertyliability) for actual use based upon the examples shown in this publication SGI , Safety Guidelines For TheApplication, Installation and Maintenance of Solid State Control (available from your local Allen-Bradley office)

2 Describes some importantdifferences between solid-state equipment and electromechanical deviceswhich should be taken into consideration when applying products such asthose described in this of the contents of this copyrighted publication, in whole orin part, without written permission of Allen Bradley Company, this manual we make notes to alert you to possible injury topeople or damage to equipment under specific : Identifies information about practices orcircumstances that can lead to personal injury or death, propertydamage or economic helps you: Identify a hazard.

3 Avoid the hazard. Recognize the : Identifies information that is especially important forsuccessful application and understanding of the : We recommend you frequently backup your applicationprograms on appropriate storage medium to avoid possible data User InformationSummary of ChangesS ISummary of ChangesThis release of the publication contains updated information from the InformationThis release includes information previously included in a documentationupdate (publication RN1 dated March 1993).In addition, many areas in this publication have been restructured help you find new and updated information in this release of thepublication, we have included change bars as shown to the right of of ChangesSummary of Changes S I.

4 Using This Manual P 1.. Purpose of Manual P 1.. Audience P 1.. Vocabulary P 1.. Manual Organization P 1.. Related Products P 2.. Product Compatibility P 2.. Related Publications P 3.. Overview of the Analog Input Module 1 1.. Chapter Objectives 1 1.. Module Description 1 1.. Features 1 1.. How Analog Modules Communicate with Programmable Controllers 1 2 Accuracy 1 3.. Chapter Summary 1 3.. Installing the Input Module 2 1.. Chapter Objectives 2 1.. Before You Install Your Input Module 2 1.. Electrostatic Damage 2 1.

5 Power Requirements 2 2.. Module Location in the I/O Chassis 2 2.. Module Keying 2 2.. Wiring Your Input Module 2 3.. Grounding 2 8.. Changing the Module 's Configuration 2 9.. Module Installation 2 12.. Indicator Lights 2 12.. Chapter Summary 2 12.. Module Programming 3 1.. Chapter Objectives 3 1.. Block Transfer Programming 3 1.. PLC 2 Programming 3 2.. PLC 3 Programming 3 3.. PLC 5 Programming 3 4.. Module Scan Time 3 5.. Table of ContentsTable of ContentsiiChapter Summary 3 5.. Configuring Your Module 4 1.

6 Chapter Objectives 4 1.. Configuring Your Input Module 4 1.. Input Range Selection 4 2.. Input Type 4 3.. Data Format 4 3.. Digital Filtering 4 4.. Real Time Sampling 4 5.. Scaling 4 6.. Default Configuration 4 8.. Chapter Summary 4 9.. Module Status and Input Data 5 1.. Chapter Objectives 5 1.. Reading Data From Your Module 5 1.. Block Transfer Read Format 5 2.. Chapter Summary 5 2.. Calibrating Your Module 6 1.. Chapter Objectives 6 1.. Tools and Equipment 6 1.. Calibration Procedure 6 1.. Chapter Summary 6 3.

7 Troubleshooting Your Input Module 7 1.. Chapter Objective 7 1.. Diagnostics Reported by the Module 7 1.. Chapter Summary 7 3.. Specifications A 1.. Programming Examples B 1.. Sample Programs for the Analog Input Module B 1.. PLC 2 Family Processors B 1.. PLC 3 Family Processor B 2.. PLC 5 Family Processors B 4.. Data Table Formats C 1.. 4 Digit Binary Coded Decimal (BCD) C 1.. Signed magnitude Binary C 2.. Two's Complement Binary C 3.. Table of ContentsiiiBlock Transfer (Mini PLC 2 and PLC 2/20 Processors) D 1.

8 Multiple GET Instructions Mini PLC 2 and PLC 2/20 Processors D 1. Setting the Block Length (Multiple GET Instructions only) D 3.. Forms E 1.. Analog Block Transfer Read E 2.. Analog Block Transfer Write E 3.. PrefaceP-1 Using This ManualThis manual shows you how to use your Analog Input Module with anAllen-Bradley programmable controller. It helps you install, program,calibrate, and troubleshoot your must be able to program and operate an Allen-Bradleyprogrammable controller to make efficient use of your Input Module .

9 Inparticular, you must know how to program block assume that you know how to do this in this manual. If you do not,refer to the appropriate programming and operations manual before youattempt to program this this manual, we refer to:- Each individual Analog Input Module as the Input Module - The Programmable Controller as the controller This manual is divided into seven chapters. The following chart showseach chapter with its corresponding title and a brief overview of the topicscovered in that Covered1 Overview of the Input modulesDescription of the Module including general and hardwarefeatures2 Installing the moduleModule power requirements, keying.

10 Chassis locationWiring of the field wiring arm3 Module programmingSample programs4 Module configurationHardware and software configurationInput range selectionData format5 Module status and Input dataReading data from the moduleRead block format6 CalibrationInformation on calibrating your module7 Troubleshooting your moduleTroubleshooting guide for problem diagnosisPurpose of ManualAudienceVocabularyManual OrganizationUsing This ManualPrefaceP-2 Topics CoveredTitleChapterAppendixTitleTopics CoveredASpecificationsBProgramming ExamplesCData FormatsInformation on BCD, 2s complement binary, signedmagnitude (12 bit)