
Errorhandlinganddiagnostics
LEDsforKbusdiagnostics
Errorcode Errorcodeargu
ment
Description Remedy
Persistent,continuous
flashing
EMCproblems Checkpowersupplyfor
overvoltageorundervoltage
peaks
ImplementEMCmeasures
IfaKBuserrorispresent,it
canbelocalizedbyarestartof
thepowersupply(byswitching
itoffandthenonagain)
3pulses 0 Kbuscommanderror NoBusTerminalinserted
OneoftheBusTerminalsis
defective;halvethenumberof
BusTerminalsattachedand
checkwhethertheerrorisstill
presentwiththeremainingBus
Terminals.Repeatuntilthe
defectiveBusTerminalis
located.
4pulses 0 KBusdataerror,break
behindthepowersupply
Checkwhetherthen+1Bus
Terminaliscorrectlyconnected;
replaceifnecessary.
n BreakbehindBusTerminal
n
CheckwhethertheBusEnd
Terminal9010isconnected.
5pulses n Kbuserrorinregister
communicationwithBus
Terminaln
Exchangethenthbusterminal
6pulses 0 Erroratinitialization ExchangeBusCoupler
1 Internaldataerror Performahardwarereseton
theBusCoupler(switchoffand
onagain)
8 Internaldataerror Performahardwarereseton
theBusCoupler(switchoffand
onagain)
7pulses 0 Processdatalengthsofthe
setandactual
configurationsdonot
correspond
Checkconfigurationand
terminalsforconsistency
Errorcodeargument
ThenumberofpulsesindicatesthepositionofthelastBusTerminalbeforethefault.PassiveBusTerminals,
suchasapowerfeedterminal,arenotincludedinthecount.
Inthecaseofsomeerrors,rectificationdoesnotcausethepowersupplytoleavetheblinksequence.The
powersupplycanonlyberestartedbyswitchingitssupplyvoltageoffandonagain.
TheCX51xxrecognizestheseterminalsautomaticallyonscanning,readsouttheterminaltypesand
automaticallyplacesthemintheSystemManager.
CX51x0 79Version1.0
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