X20AT6402-ENG.pdf
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X20AT6402-ENG.pdf
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TemperaturemoduleAT64021DatasheetV2.021.1AT64021.1.1GeneralinformationTheAT6402moduleisequippedwithsixinputsforJ,K,NandSthermocouplesensors.Themodulehasanintegratedterminaltemperaturecompensation.6inputsforthermocouplesForsensortypesJ,K,N,SAdditionaldirectrawvaluemeasurementIntegratedterminaltemperaturecompensationFiltertimecanbeconfigured1.1.2OrderdataModelnumberShortdescriptionFigureTemperaturemoduleX20AT6402X20temperatureinputmodule,6thermocoupleinputs,typeJ,K,N,S,resolution0.1KRequiredaccessoriesX20TB12X20terminalblock,12-pin,24VcodedX20BM11X20busmodule,24Vcoded,internalI/OsupplyisinterconnectedTable1:
AT6402-Orderdata2TemperaturemoduleAT6402DatasheetV2.021.1.3TechnicaldataProductIDAT6402ShortdescriptionI/Omodule6inputsforthermocouplesThermocoupletemperatureinputsInputThermocoupleDigitalconverterresolution16-bitFiltertimeConfigurablebetween1msand66.7msConversiontime1channelnchannels80.4msat50Hzfilter(n+1)x40.2msat50HzfilterOutputformatUINTBasicaccuracyTypeJTypeKTypeN(Rev.D0)TypeS0.10%at25C1)0.11%at25C1)0.11%at25C1)0.17%at25C1)MeasurementareaSensortemperatureFeCuNi:
TypeJNiCrNi:
TypeKNiCrSi:
TypeN(Rev.D0)PtRhPt:
TypeSTerminaltemperatureRawvalue-210Cto+1200C-270Cto+1372C-270Cto+1300C-50Cto+1768C0Cto+85C65.534mVTerminaltemperaturecompensationInternalGeneralinformationStatusindicatorsI/Ofunctionperchannel,operatingstate,modulestatusDiagnosticsModulerun/errorInputsYes,withstatusLEDandsoftwarestatusYes,withstatusLEDandsoftwarestatusElectricalisolationChannel-BusChannel-ChannelYesNoPowerconsumptionBusI/Ointernal0.01W0.91WCertificationCE,C-UL-US,GOST-ROperationalconditionsOperatingtemperatureHorizontalinstallationVerticalinstallation0Cto+55C0Cto+50CRelativehumidity5to95%,non-condensingMountingorientationHorizontalorverticalTable2:
AT6402-TechnicaldataTemperaturemoduleAT64023DatasheetV2.021.1.4AdditionaltechnicaldataInstallationataltitudesabovesealevel0-2000m2000mNoderatingReductionofambienttemperatureby0.5Cper100mProtectiontypeIP20StorageandtransportconditionsTemperature-25Cto+70CRelativehumidity5to95%,non-condensingMechanicalcharacteristicsSpacing12.5+0.2mmCommentOrderterminalblock1xX20TB12separatelyOrderbusmodule1xX20BM11separately1)Basedonthemeasurementrange,withoutconsiderationofthereferencejunctionmeasurementerror.ProductIDAT6402ThermocoupletemperatureinputsSensorstandardEN60584ResolutionSensortemperatureTerminaltemperatureRawvalueoutputwithrespecttogain1LSB=0.1C1LSB=0.1C1LSB=1Vor2VGainsetting-seesection1.1.16Sensortypeonpage9StandardizationTypeJTypeKTypeN(Rev.D0)TypeSTerminaltemperature-210.0Cto+1200.0C-270.0Cto+1372.0C-270.0Cto+1300.0C-50.0Cto+1768.0C-25.0Cto+85.0CMonitoringOpeninputsWirebreakBelowlowerrangelimitAboveupperrangelimitGeneralerror$7FFF$7FFF$8001$7FFF$8000ConversionmethodSigmaDeltaLinearizationmethodInternalPermittedinputsignalMax.5VInputfilterLowpass1storder/cut-offfrequency500HzMaximumgaindrift0.01%perC,basedonthecurrentmeasurementvalueMaximumoffsetdriftTypeJTypeKTypeN(Rev.D0)TypeS0.0019%perC,basedontheentiremeasurementrange0.0024%perC,basedontheentiremeasurementrange0.0029%perC,basedontheentiremeasurementrange77dB77dBSynchronizedzone15VCross-talkbetweenchannels-70dBNon-linearity0.001%,basedontheentiremeasurementrangeIsolationvoltagebetw.channelandbus500VeffGeneralinformationB&RIDcode$1BA9FigureLEDColorStatusDescriptionrGreenOffModulesupplynotconnectedSingleflashResetmodeBlinkingPreoperationalmodeOnRUNmodeeRedOffModulesupplynotconnectedoreverythingisOKOnErrororresetstateSingleflashWarning/errorforanI/Ochannel.Overfloworunderflowoftheanaloginputs.e+rSteadyred/singlegreenflashInvalidfirmware1-6GreenOffTheinputisswitchedoffBlinkingOverflow,underfloworbrokenconnectionOnTheanalog/digitalconverterisrunningTable4:
AT6402-StatusindicatorsProductIDAT6402Table3:
AT6402-Additionaltechnicaldata(cont.)TemperaturemoduleAT64025DatasheetV2.021.1.6Pinassignments1.1.7ConnectionexampleFigure1:
AT6402-PinassignmentsFigure2:
AT6402-Connectionexample1X20AT6402X20AT64022TC+1TC-1TC+3TC+2TC-2TC+4DI1Geber124V+GNDDI2Geber224V+GNDTC-3TC+5TC-5TC-4TC+6TC-6343456reGND+24VDCGND+24VDCATTC1TC3TC5TC2TC4TC6+_+_6TemperaturemoduleAT6402DatasheetV2.021.1.8Inputcircuitdiagram1.1.9AnaloginputsTheconvertedanalogvaluesareoutputbythemoduleintheregisters.Thesensortypeconfiguredwillaffectthevalueranges.1.1.10RawvaluemeasurementIfasensortypeotherthanJ,K,NorSisused,theterminaltemperaturemustbemeasuredonatleastoneinput.Basedonthisvalue,theusermustperformaterminaltemperaturecompensation.1.1.11TimingsettingThetimingsettingfordataacquisitionismadeusingtheconverterhardware.Allswitchedoninputsareconvertedduringeachconversioncycle.Aterminaltemperaturemeasurementalsotakesplace(notinfunctionmodel1).Ifaninputisnotnecessary,itcanbeswitchedoff,therebyreducingtherefreshtime.Inputscanalsobeonlytemporarilyswitchedoff.Themeasurementoftheterminaltemperatureisswitchedoffinfunctionmodel1.Figure3:
AT6402-InputcircuitdiagramTC+xTC-x+LB-LBChannel1MultiplexerA/DconverterChannel6Internalterminaltemperaturemeasurement?
Internalterminaltemperaturemeasurement?
InputvalueI/OstatusLED(green)TemperaturemoduleAT64027DatasheetV2.021.1.12ConversiontimeTheconversiontimedependsonthenumberofchannelsandonthefunctionmodel.Fortheformulaslistedinthetable,ncorrespondstothenumberofchannelsthatareswitchedon.ExamplesTheinputsarefilteredusinga50Hzfilter.1.1.13CompensationtemperatureThemodulescompensationtemperaturescanberead.FunctionmodelConversiontimeModel0-nchannelsModel1-nchannelsModel1-1channelCorrespondstothefiltertimeExample1Example2Functionmodel0Functionmodel1Functionmodel0Functionmodel1Switchedoninputs111-61-6Inputconversiontimes40.2ms20ms241.2ms241.2msConversiontimefortheterminaltemperature40.2ms-40.2ms-Totalconversiontime80.4ms20ms281.4ms241.2msn1+()2Filtertime200s+()n2Filtertime200s+()8TemperaturemoduleAT6402DatasheetV2.021.1.14ExternalreferencejunctionGeneralinformationReferencejunctiontemperaturevaluescanbespecifiedforeachchanneltocorrectmeasurements.Thisallowsanexternalreferencejunctiontobesetup.Itisimportanttoensurethatoperationwithanexternalreferencejunctionisonlypossiblefortheentiremodule.Anexternalreferencejunctionisusefulforthefollowingapplications:
WhenthereisalargedistancebetweenthecontrollerandpointofmeasurementToincreaseprecisionBridginglargedistancesWhenthereisalargedistancebetweenthecontrollerandthepointofmeasurement,anexternalreferencejunctionisrecommended.ThethermocouplevoltageisfedviacoppercablefromtheexternalreferencejunctiontotheterminalontheAT6402.Thetemperaturemeasuredattheexternalreferencejunction(e.g.usingPT100-AT4222)isstoredintheI/OareaoftheAT6402module.TheAT6402modulecalculatesthethermocoupletemperatureinternallyfromthemeasuredvoltageandthereferencejunctiontemperaturevalue(perchannel).IncreasedprecisionToincreasetheprecision,anexternalreferencejunctionisrecommended.Theconstructionoftheexternalreferencejunctionisthesameasdescribedabove.Theinstallationofanexternalreferencejunctionisespeciallyhelpfulinthefollowingcases.ThereisamodulenexttotheAT6402thatrequiresmorethan1WThereisnomodulenexttotheAT6402Withstronglyfluctuatingambientconditions(draft,temperature)Figure4:
AT6402-ExternalreferencejunctionforbridginglargedistancesPointofmeasurementTemperatureatreferencejunction(e.g.usingPT100sensor)SensorstypeJ,K,N,SCoppercable(longdistance)ReferenceJunctionAT6402AT4222TemperaturemoduleAT64029DatasheetV2.021.1.15InputfilterThefiltertimeforallanaloginputsisdefinedusingtheinputfilterparameter.1.1.16SensortypeThemoduleisdesignedforvarioussensortypes.Thesensortypemustbespecifiedbecauseofthedifferentadjustmentvalues.1.1.17ChanneldeactivationThedefaultsettingforallchannelsisON.Tosavetime,individualchannelscanbeswitchedoff(seesection1.1.12Conversiontimeonpage7).ValueFilterFiltertimeDigitalconverterresolution015Hz66.7ms16-bit125Hz40ms16-bit230Hz33.3ms16-bit350Hz20ms16-bit460Hz16.7ms16-bit5100Hz10ms16-bit6500Hz2ms16-bit71000Hz1ms16-bitCodeInputsignal0Conversionswitchedoff1SensortypeJ2SensortypeK3SensortypeS4SensortypeN5Conversionswitchedoff6RawvaluewithoutlinearizationandterminaltemperaturecompensationResolution1Vforameasurementrangeof32.767mV7RawvaluewithoutlinearizationandterminaltemperaturecompensationResolution2Vforameasurementrangeof65.534mVCodeDescription0Channelx:
Switchedoff1Channelx:
Switchedon10TemperaturemoduleAT6402DatasheetV2.021.1.18InputstatusThemodulesinputsaremonitored.Achangeinthemonitoringstatusgeneratesanerrormessage.1.1.19StatusInput01registerCodeChannelx0Noerror1Belowlowerlimitvalue2Aboveupperlimitvalue3WirebreakBitDescription0-1Channel1:
00.Noerror01.Belowlowerlimitvalue10.Aboveupperlimitvalue11.Wirebreak2-3Channel2:
00.Noerror01.Belowlowerlimitvalue10.Aboveupperlimitvalue11.Wirebreak4-5Channel3:
00.Noerror01.Belowlowerlimitvalue10.Aboveupperlimitvalue11.Wirebreak6-7Channel4:
00.Noerror01.Belowlowerlimitvalue10.Aboveupperlimitvalue11.WirebreakTemperaturemoduleAT640211DatasheetV2.021.1.20Register:
StatusInput02Inadditiontothestatusinfo,theerrortypealsosetstheanalogvalueasfollows:
1.1.21IOCyclicCounterThe
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