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119Chapter 8 Diagnostics and Fault Clearing
PLC Fault Table at the Remote I/O Scanner
If the programmer is communicating with a remote drop and in on–line mode, the
PLC Fault Table shows the remote drop rack and slot locations of the module where
the fault occurred, and a description of the fault.
Faults on option modules (such as the PCM) are listed in the Remote I/O Scanner’s
PLC Fault Table. Faults on I/O modules are listed in the I/O Fault Table.
|PROGRM |TABLES |STATUS | | |LIB |SETUP |FOLDER |UTILTY |PRINT
1plcrun 2passwd 3plcflt 4io flt 5plcmem 6blkmem 7refsiz 8sweep 9clear 10zoom
>
P L C F A U L T T A B L E
TOP FAULT DISPLAYED: 0001 TABLE LAST CLEARED: 09–21 08:00:00
TOTAL FAULTS: 0001 ENTRIES OVERFLOWED: 0000
PLC DATE/TIME: 10–14 10:05:13
FAULT FAULT DATE TIME
LOCATION DESCRIPTION M–D H: M: S
___________ ___________________________________________________ _____ ________
0.4 SYSTEM CONFIGURATION MISMATCH 10–14 16:27:54
0.2 LOSS OF, OR MISSING OPTION MODULE 10–13 09:50:14
MAINPLC RUN/ENABLE 7MS SCAN ONLINE L4 ACC: WRITE CONFIG CONFIG EQUAL
PLC C: LESSON PRG: LESSON
REPLACE
In this example, the highlighted entry shows that an option module configured for slot
2 of remote drop rack 0 has been removed, or has not been installed yet.
Fault Clearing
From this display, all faults currently present in the remote drop can be cleared by
pressing the Clear key.