Rockwell-automation 1771-IL/B , D17716.5.91 ISOLATED ANALOG INPUT Modu Manual de usuario

Isolated Analog Input ModuleCat. No. 1771-IL Series BUser Manual

Overview of the Input ModuleChapter 11-2Table 1.AProgram Selectable Input RangesVoltage Ranges Current Ranges1 to 5V dc 4 to 20mA0 to 5V dc 0 to 20mA-

Overview of the Input ModuleChapter 11-33. The module converts analog signals into binary or BCD format, andstores these values until the processor re

Chapter 22-1Installing the Input ModuleThis chapter gives you information on: calculating the chassis power requirement choosing the module’s locat

Installing the Input ModuleChapter 22-2Your module receives its power through the 1771 I/O power supply. TheIsolated Analog input module requires 1.

Installing the Input ModuleChapter 22-3Figure 2.1Configuration Jumper Settings for 1771-IL/B InputsChannel 1Channel 2Channel 3Channel 4Channel 5Channe

front of chassislocking-bar pins12453-IInstalling the Input ModuleChapter 22-4To install your module in an I/O chassis:1. First, turn off power to the

Installing the Input ModuleChapter 22-5Figure 2.2Keying PositionsUpper Connector11022-IATTENTION: Insert or remove keying bands with your fingers.I/O

Installing the Input ModuleChapter 22-6Figure 2.3Wiring Connections for the Isolated Analog Input Module (1771-IL/B)++––Channel 3Channel 2Channel 1Cha

Installing the Input ModuleChapter 22-7When using shielded cable wire, ground the foil shield and drain wire onlyat one end of the cable. We recommen

Installing the Input ModuleChapter 22-8 The front panel of the input module contains a green RUN and a red FLT(fault) indicator (Figure 2.5). At power

Because of the variety of uses for the products described in thispublication, those responsible for the application and use of this controlequipment m

Chapter 33-1Communicating With Your Module In this chapter, we describe block transfer programming quick-start sample programs in the PLC-2, PLC-3 a

Communicating With Your ModuleChapter 33-2The PLC-2 program example regulates when each block transfer will beinitiated to eliminate problems caused b

Communicating With Your ModuleChapter 33-3Block transfer instructions with the PLC-3 processor use one binary file ina data table section for module l

Communicating With Your ModuleChapter 33-4The PLC-5 program is very similar to the PLC-3 program with thefollowing exceptions:1. Block transfer enable

Communicating With Your ModuleChapter 33-5Scan time is defined as the amount of time it takes for the input module toread the input channels and place

Chapter 44-1Configuring Your ModuleIn this chapter you will read how to: configure your module’s hardware condition your inputs enter your configur

Module ConfigurationChapter 44-2During normal operation, the processor transfers from 1 to 37 words to themodule when you program a BTW instruction to

Module ConfigurationChapter 44-3Table 4.BInput Voltage and Current Ranges for the Analog Input ModuleNominal Voltageor Current RangeDefault ScalingBCD

Module ConfigurationChapter 44-4You must also indicate what format will be used to read data from yourmodule. Typically, BCD is selected with PLC-2 pr

Module ConfigurationChapter 44-5Figure 4.2Digital Filter Lag Equation Illustration100%63%0 0.01 0.5 0.99 Time in Seconds16723TA = 0.99 secTA = 0.5 sec

Summary of ChangesS-1Summary of ChangesThis release of this publication contains new and revised information fromthe last release.New InformationThis

Module ConfigurationChapter 44-6Set appropriate bits in the BTW data file to enable the RTS mode. You canselect RTS periods ranging from 50 ms to 3.1

Module ConfigurationChapter 44-7Each channel has two scaling points, low and high. The signal value atthese points is fixed. For example, the high sca

Module ConfigurationChapter 44-8Scaling RangesThe maximum range of the scaling values is +9999 BCD or +32767 binary.These values must be entered in th

Module ConfigurationChapter 44-9AlarmsEach input channel has alarm functions that provide status indicationthrough associated status bits in the block

Module ConfigurationChapter 44-10 If a write block with all zeroes is written to the module, the defaultselections will be: 1 to 5V dc or 4 to 20mA (

Module ConfigurationChapter 44-1100010203040506070809101112131415Decimal Bits00010203040506071011121314151617Octal Bits17 Channel 7 - maximum scaling1

Module ConfigurationChapter 44-12Bit/Word Descriptions for the Isolated Analog Input ModuleConfiguration BlockNote that decimal bits are shown. Octal

Module ConfigurationChapter 44-13DescriptionDecimal Bit(Octal Bit)WordBit 00Offset Calibration bit. When this bit is set (1), offset calibration is to

Chapter 55-1Module Status and Input DataIn this chapter you will read about: reading data from your module block transfer read data formatBlock tran

Module Status and Input DataChapter 55-2The Isolated Analog Input Module (1771-IL series B) reports the status ofall eight channels to the processor a

PrefaceP-1Using This ManualThis manual shows you how to use your Isolated Analog Input modulewith an Allen-Bradley programmable controller. It helps y

Module Status and Input DataChapter 55-3DescriptionDecimal Bit(Octal Bit)WordWord 13Bits 00-07(00-07)Low Alarm bits for channels 1 through 8 respectiv

Chapter66-1Module CalibrationIn this chapter we tell you how to calibrate your module.To calibrate your input module you will need the following tools

Module CalibrationChapter 66-2Calibration of the module consists of applying 0.00000V across each inputchannel for offset calibration, and +10.00000V

Module CalibrationChapter 66-34. After the connections stabilize, request the offset calibration by setting bit00 in block transfer write word 37 and

Module CalibrationChapter 66-4Gain CalibrationCalibrating gain requires that you apply +10.00000V across each input channel.To calibrate the gain of a

Module CalibrationChapter 66-5Save Calibration ValuesIf any ”uncalibrated channel” bits 08-15 (10-17 octal) of word 15 are set, a savecannot occur. Au

Chapter 77-1TroubleshootingWe describe how to troubleshoot your module by observing indicators and bymonitoring status bits reported to the processor.

RUNFLTRUNFLTRUNFLTRUNFLTTroubleshootingChapter 77-2Table 7.A shows indications, probable causes and recommended actions tocorrect common faults.Table

TroubleshootingChapter 77-3Table 7.BStatus Reported in Word 1WordDecimal Bit(Octal Bit)DescriptionBit 00Power up bit (PU) is set after initial power u

TroubleshootingChapter 77-4Status Reported in Words 13 and 14Design your program to monitor over/under alarm bits, and to take appropriateaction depen

Using This ManualPrefaceP-2Appendix Title Topics CoveredA SpecificationsB Configuration ExampleC Data FormatsInformation on BCD, 2s complement binary,

TroubleshootingChapter 77-5Status Reported in Word 15Design your program to monitor status bits in word 15 during auto-calibration,and to take appropr

AppendixAA-1SpecificationsInputs per module 8 fully isolated differentialModule Location 1771 I/O rack - 1 slotInput voltage ranges (nominal) +1 to +5

SpecificationsAppendix AA-2Specifications continuedCalibration Interval calibration should be checked at 6 month intervals to maintainspecified accura

AppendixBB-1Configuration ExampleThe following is a sample configuration for the 1771-IL series B isolatedanalog input module. Entering the data shown

Configuration ExampleAppendix BB-2Figure B.1Sample PLC-5 Data File (Hexadecimal Data) for an Isolated Analog InputModule (cat. no. 1771-IL series B)Ad

AppendixCC-1Data Table FormatsThe 4-digit BCD format uses an arrangement of 16 binary digits to represent a4-digit decimal number from 0000 to 9999 (f

Data FormatsAppendix CC-2Table C.ABCD Representation Place Value 23 (8) 22 (4) 21 (2) 20 (1)Dec

Data FormatsAppendix CC-3First, the two’s complement method places an extra bit (sign bit) in the left-mostposition, and lets this bit determine wheth

AppendixDD-1Block Transfer (Mini-PLC-2 and PLC-2/20Processors)Programming multiple GET instructions is similar to block format instructionsprogrammed

Block Transfer (Mini–PLC–2 andPLC–2/20 Processors)Appendix DD-2Rungs 2 and 3: These output energize instructions (012/01 and 012/02) definethe number

Using This ManualPrefaceP-3You can place your input module in any I/O module slot of the I/O chassis.You can put two input modules in the same module

Appendix DBlock Transfer (Mini–PLC–2 andPLC–2/20 Processors)D-3The input module transfers a specific number of words in one block length. Thenumber of

IndexIAalarms, 4-9overrange, 4-9underrange, 4-9BBCD format, 1-3bit settings, voltage or current input,4-2block transfer, 1-1, 2-2, 3-1write, 4-5block

IndexIISscalingimplementation, 4-7ranges, 4-8scan time, 3-5specifications, A-1TTroubleshooting, table, 7-2Uupdate time, 1-1Wwiring connections, 2-6PLC

With major offices worldwide.Algeria • Argentina • Australia • Austria • Bahrain • Belgium • Brazil • Bulgaria • Canada • Chile • China, PRC • Colombi

Table of ContentsIChapter 1Chapter Objectives 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Module Descriptions

Table of ContentsIIChapter 5Chapter Objectives 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reading Data From

Chapter 11-1Overview of the Input ModuleThis chapter gives you information on: features of the module how the input module communicates with program