
Errorhandlinganddiagnostics
6.1.2 Kbusinterface
Afterswitchingon,thepowersupplyimmediatelycheckstheconnectedBusTerminalconfiguration.Error
freestartupissignalledbythered"I/OERR”LEDbeingextinguished.Ifthe“I/OERR”LEDblinks,anerror
intheareaoftheterminalsisindicated.Theerrorcodecanbedeterminedfromthefrequencyandnumberof
blinks.Thispermitsrapidrectificationoftheerror.
Display LED Meaning
Us24V PowersupplyfortheCPUmodule.TheLEDlights
greenifthepowersupplyiscorrect.
Up24V Powersupplyforterminalbus.TheLEDlights
greenifthepowersupplyiscorrect.
KBUSRUN Kbusdiagnostics.ThegreenLEDlightsupinorder
toindicatefaultfreeoperation."Faultfree"means
thatthecommunicationwiththefieldbussystemis
alsorunning.
KBUSERR Kbusdiagnostics.TheredLEDflashestoindicate
anerror.TheredLEDblinkswithtwodifferent
frequencies.
TheI/OerrorLEDblinkcode
Fastblinking Startoftheerrorcode
Firstslowsequence Errorcode
Secondslowsequence Errorcodeargument
CX51x078 Version1.0
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