Beckhoff CX51x0 Instrukcja Użytkownika Pobierz pdf (Strona 80)

Errorhandlinganddiagnostics

Kbusstate

TheKbusstatusissavedinthestatebyte(seefig.Kbusinterface“1”).Ifthevalueis0theKbusis

operatingsynchronouslyandwithouterrors.Ifthevalueis<>”0”theremaybeafault,oritmayonlybean

indicationthattheKbuscycleislongerthanthetask,inwhichcaseitwouldnolongerbysynchronouswith

thetask.Thetasktimeshouldbefasterthan100ms.Werecommendatasktimeoflessthan50ms.TheK

busupdatetimetypicallyliesbetweenoneandfivems.

Bit0=KBuserror

Bit1=terminalconfigurationhaschangedsincethestart

Bit2=processimagelengthsdonotmatch

Bit8=novalidinputs(yet)

Bit9=Kbusinputupdatenotyetcomplete

Bit10=Kbusoutputupdatenotyetcomplete

Bit11=watchdog

Bit15=acyclicKbusfunctionactive(e.g.Kbusreset)

IfthereisaKbuserror,thiscanberesetviatheIOF_DeviceResetfunctionblock(intheTcIoFunctions.lib).

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Beckhoff CX51x0 Instrukcja Użytkownika Strona 80