XITRON XT2640 - Synchronizing Measurements Within a Group of Units; Holding and Releasing Measurements in a Group of Units; Starting, Stopping and Configuring Integration in a G; Units

XT2640OperatingManual 13July2016 Page113of187
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o AnynumberofVPAsinanynumberofXT2640smayuseeachGFUNDmeasurementdata(includingaVPAwithinthe
sameXT2640whichisprovidingthedata).
o AGFUNDdatacannotbecircularlyconfigured,e.g.ifVPA1withinaXT2640isconfiguredtouseGFUND1asits
fundamentalthenVPA1withinthatXT2640cannotbeconfiguredtoprovidetheVPA1fundamentalasGFUND1.
o IfaconflictisdiscoveredinaGFUNDdataprovidedbythisXT2640(i.e.anotherXT2640isalsoconfiguredtoprovide
thisdata)thenthebuttoniscoloredRED.
 Youcandisplayalistoftheunitsdiscoveredwithintheconfiguredmulti‐unitgroupintheOTHERMEMBERSareaoftheMulti‐
UnitConfigurationscreen(otherthantheXT2640onwhichitisbeingdisplayed).Typicallythiscantakeafewsecondsto
respondtootherXT2640sbeingtakenintooroutofserviceortheirmulti‐unitconfigurationbeingchanged.Ifmorethanone
otherunitisdetectedthenPREVand/orNEXTbuttonsareprovidedtoscrollbetweenthediscoveredunits.Theinformation
displayedforeachdiscoveredunitincudes–
o Theidentityname(ifany)forthatunit.
o TheIPaddressofthatunit.
o IfthatunitisconfiguredforSYNCmodemeasurements.
o IfthatunitprovidesanyIN,MIDand/orOUTmeasurementdata.
o IfthatunitisconfiguredtoprovideanyGFUNDmeasurementdata.
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21.3 SYNCHRONIZINGMEASUREMENTSWITHINAGROUPOFUNITS
AllXT2640sconfiguredwithinthesameMulti‐Unitgroupnumber,andareconnectedtoeachother,andareconfiguredforSYNC
measurementmode(see12.4.1)willstarttheirmeasurementsatthesametimeandanothermeasurementcannotbestarteduntilall
suchmeasurementshavebeencompletedwithinallVPAsinallconfiguredunitsinthismanner.Seesection22forfurtherdetails
regardingthis.
Note:
 OnlyunitsconfiguredtousetheSYNCmeasurementmodearesynchronizedinthismanner.
 OtherthanconfiguringtherequiredunitstousetheSYNCmeasurementmode,nootherconfigurationisnecessarytoachieve
thiscapability.
Recommendation:
 Thiscapabilityshouldonlybeusedwhennecessary;measurementsaregenerallynotcontinuouswhenoperatedinthismanner.
Typicallythisisonlyusefulwhenunitsaremeasuringvalueswhichvaryconsiderablyovertimeandeveninsuchsituations
typicallysimplyusingafastermeasurementperiodandresultresponseaveragingisusuallyrecommended.
21.4 HOLDINGANDRELEASINGMEASUREMENTSINAGROUPOFUNITS
HoldingorreleasingmeasurementsusingthefrontpaneloraninterfaceonanyXT2640withinamulti‐unitgroupaffectsallunits
withinthatgroupsimultaneously,noconfigurationisnecessarytoachievethiscapability.
21.5 STARTING,STOPPINGANDCONFIGURINGINTEGRATIONINAGROUPOF
UNITS
Startingand/orstoppingintegrationusingthefrontpaneloraninterfaceonanyXT2640withinamulti‐unitgroupaffectsallunits
withinthatgroupsimultaneously,noconfigurationisnecessarytoachievethiscapability.Theintegrationconfigurationoftheunit
onwhichintegrationwasstartedisautomaticallyusedwithinallsuchunits.Seesection15fordetailsregardingintegration.
21.6 STARTINGANDSTOPPINGHISTORICALDATACOLLECTIONINAGROUPOF
UNITS
Startingand/orstoppinghistoricaldatacollectionusingthefrontpaneloraninterfaceonanyXT2640withinamulti‐unitgroup
affectsallunitswithinthatgroupsimultaneously,noconfigurationisnecessarytoachievethiscapability.