Pilz PNOZ m EF PDP Link Manuel d'utilisateur télécharger pdf (Page 11)

Functiondescription

OperatingManualPNOZmEFPDPLink

1003019EN02

4 Functiondescription

4.1 Integratedprotectionmechanisms

Therelayconformstothefollowingsafetycriteria:

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Thecircuitisredundantwithbuiltinselfmonitoring.

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Thesafetyfunctionremainseffectiveinthecaseofacomponentfailure.

4.2 Functions

ThelinkmodulePNOZmEFPDPLinkisusedtosafelytransfertheinputinformationfrom

decentralisedmodulestothecontrolsystemPNOZmulti2.

Thefunctionoftheinputsandoutputsonthecontrolsystemdependsonthesafetycircuit

createdusingthePNOZmultiConfigurator.Achipcardisusedtodownloadthesafetycir

cuittothebaseunit.Thebaseunithas2microcontrollersthatmonitoreachother.They

evaluatetheinputcircuitsonthebaseunitandexpansionmodulesandswitchtheoutputs

onthebaseunitandexpansionmodulesaccordingly.

TheLEDsonthebaseunitandexpansionmodulesindicatethestatusoftheconfigurable

controlsystemPNOZmulti.

TheonlinehelponthePNOZmultiConfiguratorcontainsdescriptionsoftheoperating

modesandallthefunctionsofthecontrolsystem,plusconnectionexamples.

Dataexchange:

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Communicationwiththedecentralisedmodulesisviaasafedatalink.

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ThelinkmodulePNOZmEFPDPLinkreadstheinputinformationfromthedecentral

isedmodulesaspartofeachcycleandthenforwardsittothebaseunit.

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AttheendofaPNOZmulticycle,thebaseunitsendsitsoutputdatatoitslinkmodule.

Thisoutputdataisimmediatelysenttothedecentralisedmodules.

Linkingseveraldecentralisedmodules:

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Amaximumof4linkmodulescanbeconnectedtoabaseunitPNOZmulti2.

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Amaximumof4decentralisedmodulescanbeconnectedtoalinkmodulePNOZmEF

PDPLink.

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Ifadecentralisedmodulereceivesdataintendedforadifferentdecentralisedmodule

thatisconnected,thedataisforwardedwithoutbeingprocessed.

4.3 Systemreactiontime

Calculationofthemaximumreactiontimebetweenaninputswitchingoffandalinkedout

putinthesystemswitchingoffisdescribedinthedocument"SystemExpansion".

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Pilz PNOZ m EF PDP Link Manuel d'utilisateur Page 11

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