
FunctionDescription
OperatingManualPNOZmEFMultiLink
1003018EN02
10
4 FunctionDescription
4.1 Integratedprotectionmechanisms
Therelayconformstothefollowingsafetycriteria:
}
Thecircuitisredundantwithbuiltinselfmonitoring.
}
Thesafetyfunctionremainseffectiveinthecaseofacomponentfailure.
4.2 Functions
ThelinkmodulePNOZmEFMultiLinkisusedtosafelytransfertheinputinformationfrom
32virtualinputsand32virtualoutputsbetweentwoPNOZmultisystems.Onelinkmodule
isassignedtoeachbaseunit.Dataisexchangedcyclically.
Thefunctionoftheinputsandoutputsonthecontrolsystemdependsonthesafetycircuit
createdusingthePNOZmultiConfigurator.Achipcardisusedtodownloadthesafetycir
cuittothebaseunit.Thebaseunithas2microcontrollersthatmonitoreachother.They
evaluatetheinputcircuitsonthebaseunitandexpansionmodulesandswitchtheoutputs
onthebaseunitandexpansionmodulesaccordingly.
TheLEDsonthebaseunitandexpansionmodulesindicatethestatusoftheconfigurable
controlsystemPNOZmulti.
TheonlinehelponthePNOZmultiConfiguratorcontainsdescriptionsoftheoperating
modesandallthefunctionsofthecontrolsystem,plusconnectionexamples.
Dataexchange:
}
Dataisexchangedcyclically.
}
AftertheendofaPNOZmulticycle,eachbaseunitsendsitsoutputdatatoitslinkmod
ule.Thisoutputdataisimmediatelysenttothelinkmoduleontheotherbaseunit.
}
Atthesametime,thebaseunitreadstheinputdatafromthelinkmodule.
Connectionofmultiplebaseunits:
Anynumberofbaseunitscanbeconnectedvialinkmodules.Twolinkmodulesarere
quiredforaconnectionbetweentwobaseunits.However,onlyamaximumof4linkmod
ulesmaybeconnectedtoanyonebaseunit.
Virtualinputsandoutputs:
InputsandoutputsforbothPNOZmultisystemsareassignedinthePNOZmultiConfigur
ator.Inputsandoutputswiththesamenumberareassignedtoeachother,e.g.outputo5
ononePNOZmultisystemtoinputi5ontheotherPNOZmultisystem.
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