Spectrum-controls 1746sc-NI8u Bedienungsanleitung

SLC 500™ UNIVERSALANALOG INPUT MODULEThermocouple, RTD, Resistance, mV/V, mACatalog Numbers1746sc-NI8uOwner’sGuide 0300172-03 Rev. D

vi SLC 500™ Universal Analog Input ModulesChannelConfiguration, Data,and StatusChapter 4Channel Configuration ...

88 SLC 500™ Universal Analog Input Module120Ω Ni 618 RTD, Example Deviations-0.3-0.2-0.100.1-100 0 100 200 300Degrees C RTD InputDegrees C DeviationCh

Appendix A: Module Specifications 89Millivolt, volt, and currentThe universal module supports many input paths in order to support themany different t

90 SLC 500™ Universal Analog Input Module

Thermocouple DescriptionsThe following information was extracted from the NIST Monograph 175issued in January 1990, which supersedes the IPTS-68 Monog

92 SLC 500™ Universal Analog Input Modulethe thermocouple usage. The total and specific types of impurities thatoccur in commercial iron change with

Appendix B: Thermocouple Descriptions 93much as 40uV (or 0.6°C equivalent) per minute when first brought up totemperatures near 900°C.ASTM Standard E2

94 SLC 500™ Universal Analog Input Modulehomogeneity of type KN thermoelements, however, was found [8] to benot quite as good as that of type EN therm

Appendix B: Thermocouple Descriptions 95(3.25mm) wire. It decreases to 1090°C for AWG 14 (1.63mm), 980°C forAWG 20 (0.81mm), 870 for AWG 24 or 28 (0.

96 SLC 500™ Universal Analog Input Modulehelium temperatures (about 4°K) but that its Seebeck coefficient becomesquite small below 20°K. Its Seebeck

Appendix B: Thermocouple Descriptions 97supplied to meet the tolerances specified for temperatures above 0°C.However, the same materials may not satis

Preface viiAppendix C: Using Grounded Junction,Ungrounded Junction, and Exposed Junction ThermocouplesThermocouple Types ...

98 SLC 500™ Universal Analog Input Modulestability of EP and EN type alloys when heated in air at elevatedtemperatures and his work should be consulte

Appendix B: Thermocouple Descriptions 99AWG 20 (0.81mm), 430°C for AWG 24 or 28 (0.51mm or 0.33mm), and370°C for AWG 30 (0.25mm). These temperature l

100 SLC 500™ Universal Analog Input Module0°C and 1450°C. Type R thermocouples can be supplied to meet specialtolerances of +/-0.6°C or +/-0.1% (whic

Appendix B: Thermocouple Descriptions 101short periods of time. However, type B thermocouples are generally moresuitable for such applications above

102 SLC 500™ Universal Analog Input Moduleweight percent increase in rhodium content; the Seebeck coefficientincreases by about 4% per weight percent

Appendix B: Thermocouple Descriptions 103oxidizing atmosphere (air) but also has been used successfully in neutralatmospheres or vacuum by Walker et a

104 SLC 500™ Universal Analog Input Moduleto 14.4% chromium, 1.3 to 1.6% silicon, plus small amounts (usually notexceeding about 0.1%) of other elemen

Appendix B: Thermocouple Descriptions 105The performance of type N thermocouples fabricated in metal-sheathed,compacted ceramic insulated form also ha

106 SLC 500™ Universal Analog Input ModuleReferences[1] Preston-Thomas, H. The International Temperature Scale of 1990(ITS-90). Metrologia 27, 3-10

Appendix B: Thermocouple Descriptions 107[14] Potts, J. F. Jr.; McElroy, D. L. The effects of cold working, heattreatment, and oxidation on the ther

viii SLC 500™ Universal Analog Input ModulesTable 4.1 Channel Configuration Word (O:e.3:0)... 36Table 4.2 Chann

108 SLC 500™ Universal Analog Input Module[24] Glawe, G. E.; Szaniszlo, A. J. Long-term drift of some noble- andrefractory-metal thermocouples at 16

Appendix B: Thermocouple Descriptions 109[33] McLaren, E. H.; Murdock, E. G. Properties of some noble and basemetal thermocouples at fixed points in

110 SLC 500™ Universal Analog Input Module[46] Burley, N. A.; Hess, R. M.; Howie, C. F. Nicrosil and nisil: newnickel-based thermocouple alloys of

Appendix B: Thermocouple Descriptions 111[57] Bentley, R. E. The new nicrosil-sheathed type N MIMSthermocouple: an assessment of the first producti

112 SLC 500™ Universal Analog Input Module

Using Grounded Junction,Ungrounded Junction, and ExposedJunction ThermocouplesThis appendix describes the types of thermocouples available, andexplain

114 SLC 500™ Universal Analog Input ModuleUngrounded (Insulated) JunctionMeasuring Junction isisolated from sheathExposed JunctionMeasuring Junctionha

Appendix B: Using Grounded Junction, Ungrounded Junction, and Exposed Junction Thermocouples 115+-CH3+-CH0MUXES1746sc-NI8uGrounded junction with shiel

116 SLC 500™ Universal Analog Input Module• For multiple exposed thermocouples, do not allow the measuringjunction of the thermocouple to make direct

Getting TechnicalAssistanceIf you need technical assistance, please review the information in Chapter6, “Testing Your Module,” before calling your loc

Module OverviewThis chapter describes the universal analog input module and explains howthe SLC controller reads thermocouple or millivolt analog inpu

©2001-2004 Spectrum Controls, Inc. All rights reserved. Specifications subject to change without notice. The Encompass logo and SLC500 are trademark

2 SLC 500™ Universal Analog Input ModuleTable 1.2 RTD Temperature RangesType °C Temperature Range °F Temperature RangePlatinum (385)1100 Ohm -200°C t

Chapter 1: Module Overview 3All eight input channels are individually configurable for thermocouple,millivolt, volt, or milliamp input types. Channel

4 SLC 500™ Universal Analog Input ModuleThe first four input channels (0 through 3) can receive input signals fromthermocouples, millivolt, volt, or

Chapter 1: Module Overview 5Module OperationThe module’s input circuitry consists of eight differential analog inputs,multiplexed into an A/D converte

6 SLC 500™ Universal Analog Input ModuleCompatibility with RTD and Resistance devices andcablesThe module is compatible 100Ω Platinum 385, 200Ω Platin

Chapter 1: Module Overview 7Block DiagramMultiplexersUser SelectedFilter FrequencyDigitalValueAnalogto DigitalConverterDigitalFilterDC Voltage +Analog

8 SLC 500™ Universal Analog Input Module

Installing And Wiring Your ModuleRead this chapter to install and wire your module. This chaptercovers:• avoiding electrostatic damage• determining po

10 SLC 500™ Universal Analog Input ModuleTable 2.1. Maximum current drawn by themodule5VDC Amps 24VDC Amps 0.120 0.100When using the module i

Chapter 2: Installing And Wiring Your Module 11The following diagram shows the module outline defining the placement ofthe various shunts, looking at

12 SLC 500™ Universal Analog Input ModuleJP9, JP10, and JP12SetupThe NI8u module supports up to four RTD or resistance inputs onchannels 4 through 7.

Chapter 2: Installing And Wiring Your Module 13Selecting A RackSlotTwo factors determine where you should install your module in therack: ambient temp

14 SLC 500™ Universal Analog Input ModuleTo insert your module into the rack, follow these steps:1. Align the circuit board of your module with the ca

Chapter 2: Installing And Wiring Your Module 15Figure 2.2. Terminal block diagram with CJCsensorsCJC SensorsTB1CJC SensorsCH0+CH0-Shield 0/1CH1+CH1-EX

16 SLC 500™ Universal Analog Input Moduletransformers, contactors, and ac devices. As a general rule, allow atleast 6 in. (about 15.2 cm) of separati

Chapter 2: Installing And Wiring Your Module 172-Wire RTD InterconnectionEXC4+CH4+CH4-EXC4-Shield 4/5EXC4+CH4+CH4-EXC4-Shield 4/53-Wire RTD Interconne

Important Notes1. Please read all the information in this owner’s guide before installingthe product.2. The information in this owner's guide app

18 SLC 500™ Universal Analog Input ModuleRTD Type V/°C100Ω Pt 385 58µV/°C200Ω Pt 385 116µV/°C500Ω Pt 385 290µV/°C1000Ω Pt 385 580µV/°C100Ω Pt 3916 68µ

Chapter 2: Installing And Wiring Your Module 19- extract the drain wire and signal wires- remove the foil shield- bundle the input cables with a cable

20 SLC 500™ Universal Analog Input ModuleFigure 2.3 Ferrite EMI suppressor for CEcomplianceModuleNote: Please refer to Appendix C for additional info

Chapter 2: Installing And Wiring Your Module 21The module also has a ground terminal TB1 which should be grounded toa chassis mounting bolt with 14 ga

22 SLC 500™ Universal Analog Input Module

Things To Consider Before UsingYour ModuleThis chapter explains how the module and the SLC processorcommunicate through the processor’s I/O image tabl

24 SLC 500™ Universal Analog Input ModuleFigure 3.1 Image tableInputScanOutput ImageSlot eInput ImageSlot eSLC 5/0XData FilesWord 0 O:e.0Word 1 O:e.1W

Chapter 3: Things To Consider Before Using Your Module 25Input Image - Data Words and Status WordsEight words of the SLC processor’s input image table

26 SLC 500™ Universal Analog Input ModuleTable 3.1 Cut-off frequency, step response time, and effective resolution (based on filter frequency)Filter

Chapter 3: Things To Consider Before Using Your Module 27Figure 3.2 Signal attenuation with 10 Hz input filter0-20-40-60-80-100-120-140-160-180-2000 1

28 SLC 500™ Universal Analog Input ModuleFigure 3.4 Signal attenuation with 60 Hz input filter0-20-40-60-80-100-120-140-160-180-2000 60 120 180 240 30

Chapter 3: Things To Consider Before Using Your Module 29Update TimeThe universal module update time is defined as the time required for themodule to

30 SLC 500™ Universal Analog Input ModuleNote: On alternate module scans, the 314 msec lead resistance samplingtime would be replaced by a 64 msec C

Chapter 3: Things To Consider Before Using Your Module 31a mid voltage input path, and a high voltage input path. The following tablecorrelates input

32 SLC 500™ Universal Analog Input ModuleResponse to SlotDisablingBy writing to the status file in the modular SLC processor, you can disableany chass

Chapter 4: Channel Configuration, Data, and Status 33Channel Configuration, Data,and StatusRead this chapter to:• configure each input channel• check

34 SLC 500™ Universal Analog Input ModuleThe configuration word default settings are all zero. Next, we describehow you set configuration bits of a c

Chapter 4: Channel Configuration, Data, and Status 35input types. Check table 11 to make sure you selected a validcombination.4. Determine the desire

36 SLC 500™ Universal Analog Input ModuleTable 4.1 Channel Configuration Word (O:e.3:0)Channel 3:0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0Channel Channe

Chapter 4: Channel Configuration, Data, and Status 37Table 4.2 Channel Configuration Word (O:e.7:4)Channel 7:4 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0Ch

PrefaceRead this preface to familiarize yourself with the rest of the owner’sguide. This preface covers:• who should use this guide• what this guide c

38 SLC 500™ Universal Analog Input ModuleSelect Channel Enable (Bit 0)Use the channel enable bit to enable a channel. The universal module onlyscans

Chapter 4: Channel Configuration, Data, and Status 39The proportional counts are scaled to fit the defined temperature,voltage, or current range. The

40 SLC 500™ Universal Analog Input ModuleProportional Counts to Engineering UnitsEquation: Engr Units Equivalent = SLOW + {(SHIGH-SLOW) x [(Proportion

Chapter 4: Channel Configuration, Data, and Status 41Table 4.3 1746sc-NI8u Universal Module - Channel Data Word FormatData FormatInput

42 SLC 500™ Universal Analog Input ModuleTable 4.4 1746sc-NI8u Thermocouple Module -Channel Data Word ResolutionData FormatInput Engineering Units x 1

Chapter 4: Channel Configuration, Data, and Status 43Important: Data resolution is not equivalent to data accuracy. Dataresolution merely indicate

44 SLC 500™ Universal Analog Input ModuleFor example, if channel one is configured as a thermocouple type whenthe CJC breaks in an open-circuit condit

Chapter 4: Channel Configuration, Data, and Status 45Select Input Image Type (Bit 15)The input image type bit allows you to select data or status info

46 SLC 500™ Universal Analog Input ModuleThe channel status can be analyzed bit by bit. In addition to providinginformation about an enabled or disab

Chapter 4: Channel Configuration, Data, and Status 47Channel 7:4 15 14 13 12 11 10 9 8 7 6 5 4 3210Channel Channel disabled 0Status Channel enable 14

ii SLC 500™ Universal Analog Input ModulesTable A. Related Allen-Bradley documentsAllen-Bradley Doc. No. Title1747-2.30 SLC 500 System OverviewSGI-1.1

48 SLC 500™ Universal Analog Input ModuleImportant: If the channel for which you are seeking status is disabled,all bit fields are cleared. The st

Chapter 4: Channel Configuration, Data, and Status 49Under-Range Error (Bit 13)This bit is set (1) whenever a configured channel detects an under-rang

50 SLC 500™ Universal Analog Input Module

Chapter 5: Ladder Program Examples 51Programming ExamplesEarlier chapters explained how the configuration word defines the way achannel operates. Thi

52 SLC 500™ Universal Analog Input ModuleProcedure1. Using the memory map function, create integer file N10. Integer fileN10 should contain eight ele

Chapter 5: Ladder Program Examples 53DynamicProgrammingThe following example explains how to change data in the channelconfiguration word when the cha

54 SLC 500™ Universal Analog Input ModuleFigure 5.5 Data table for dynamic programming address 15 data 0 address 15 da

Chapter 5: Ladder Program Examples 55Figure 5.6 Programming for configuration changesexampleSet up all eight channelss:1 ] [ 15COPCOPY FILESource

56 SLC 500™ Universal Analog Input ModuleInterfacing to the PIDInstructionThe universal module was designed to interface directly to the SLC5/02™ or l

Chapter 5: Ladder Program Examples 57Figure 5.9 Data table for PID Control address 15 data 0 address 15 data 0N1

Preface iiiCJC - (Cold Junction Compensation) The means by which the modulecompensates for the offset voltage error introduced by the temperature atth

58 SLC 500™ Universal Analog Input ModuleFigure 5.10 Monitoring channel status bits exampleFirst Pass Bit Initialize NI8uChannel 0Program ListingChann

Chapter 5: Ladder Program Examples 59This is an example of how to automatically switch between reading thechannel status words and channel data words.

60 SLC 500™ Universal Analog Input ModuleRung 2:1This rung tests to see if T4:0.ACC is at a value between 800 and 950counts. If so, the channel confi

Chapter 5: Ladder Program Examples 61Rung 2:3This rung will copy the channel sensor data into registers N7:0 throughN7:7, about 2 seconds after the co

62 SLC 500™ Universal Analog Input Module

Testing Your ModuleThis chapter describes troubleshooting with channel-status and module-status LEDs. It explains the types of conditions that might

64 SLC 500™ Universal Analog Input Modulebit (bits 12-15 of the channel status word). Channel fault bits and LEDsare self-clearing when fault conditi

Chapter 6: Testing Your Module 65Channel-status LEDs (Green)The channel-status LED operates with status bits in the channel statusword to indicate the

66 SLC 500™ Universal Analog Input ModuleChannel Error (Bit 15)The module sets this fault bit when it detects any of the following:Configuration erorr

Chapter 6: Testing Your Module 67Verifying With TestInstrumentationThe 1746sc-NI8u has multiplexed channel inputs which switch in order toread an inpu

iv SLC 500™ Universal Analog Input ModulesLocal System - A control system with I/O chassis within several feet ofthe processor, and using 1746-C7 or 1

68 SLC 500™ Universal Analog Input ModuleFigure 6.1 Troubleshooting FlowchartNormal moduleoperation.ModuleStatus LED(s)off.Module faultcondition.Chec

Chapter 7: Maintaining Your Module And Ensuring Safety 69Maintaining Your ModuleAnd Ensuring SafetyRead this chapter to familiarize yourself with:• pr

70 SLC 500™ Universal Analog Input ModuleStanding Clear Of Machinery – When troubleshooting a problem withany SLC 500 system, have all personnel remai

Chapter 7: Maintaining Your Module And Ensuring Safety 71WARNINGEXPLOSION HAZARDWHEN IN HAZARDOUS LOCATIONS, TURN OFF POWERBEFORE REPLACING OR WIRING

72 SLC 500™ Universal Analog Input Module

Module SpecificationsThis appendix lists the specifications for the 1746sc-NI8u Universal analogInput Module.ElectricalSpecificationsBackplane Current

74 SLC 500™ Universal Analog Input ModulePhysicalSpecificationsLED Indicators 9 green status indicators, one for each of 8channels and one for module

Appendix A: Module Specifications 75RTD Conversion JIS C 1602-1997 for Pt 385JIS C 1604-1989 for Pt 3916SAMA RC21-4-1966 for the 10Ω Cu 426 RTDDIN 437

76 SLC 500™ Universal Analog Input ModuleThe accuracies specified as follows include errors due to the cold junctioncompensation for thermocouples, cu

Appendix A: Module Specifications 77The diagrams that follow for each thermocouple type, give data for asample module over the input range of the ther

Table of ContentsPrefaceWho Should Use This Guide ... iWhat This Guide

78 SLC 500™ Universal Analog Input ModuleThermocouple Type K, Example Deviations (High Range)-0.3-0.2-0.100.10.20.3-200 0 200 400 600 800 1000 1200 14

Appendix A: Module Specifications 79Thermocouple Type T, Example Deviations (High Range)-0.3-0.25-0.2-0.15-0.1-0.0500.05-200 -100 0 100 200 300 400Deg

80 SLC 500™ Universal Analog Input ModuleThermocouple Type R, Example Deviations-1.1-1-0.9-0.8-0.7-0.6-0.5-0.4-0.3-0.2-0.100.10 200 400 600 800 1000 1

Appendix A: Module Specifications 81Thermocouple Type B, Example Deviations-2-1.5-1-0.500.5300 500 700 900 1100 1300 1500 1700 1900Degrees C TC InputD

82 SLC 500™ Universal Analog Input ModuleThermocouple C Type, Example Variations-0.5-0.4-0.3-0.2-0.100.10.20.30.40.50 463 926 1389 1852 2315Degrees C

Appendix A: Module Specifications 83The following table provides the maximum error for each RTD andresistance type when the 10 Hz, 50 Hz, and 60 Hz fi

84 SLC 500™ Universal Analog Input Module200Ω Pt 385 RTD, Example Deviations-0.8-0.7-0.6-0.5-0.4-0.3-0.2-0.100.10.20.3-200 -100 0 100 200 300 400 500

Appendix A: Module Specifications 851000Ω Pt 385 RTD, Example Deviations-1.1-1-0.9-0.8-0.7-0.6-0.5-0.4-0.3-0.2-0.100.10.2-200 -100 0 100 200 300 400 5

86 SLC 500™ Universal Analog Input Module200Ω Pt 3916 RTD, Example Deviations-0.8-0.7-0.6-0.5-0.4-0.3-0.2-0.100.10.20.3-200 -100 0 100 200 300 400 500

Appendix A: Module Specifications 871000Ω Pt 3916 RTD, Example Deviations-0.75-0.5-0.2500.25-200 -100 0 100 200 300 400 500 600 700Degrees C RTD Input