Omron CJ - 08-2008 - Error Categories; Error Information; Error Processing

501
Error Processing Section 11-2
Note The Error Log Pointer can be reset by turning ON the Error Log Pointer Reset
Bit (A50014), effectively clearing the error log displays from the Programming
Consoles or CX-Programmer. The contents of the Error Log Area will not be
cleared by resetting the pointer.
11-2 Error Processing
11-2-1 Error Categories
Errors in CJ-series PLCs can be broadly divided into the following three cate-
gories.
11-2-2 Error Information
There are basically four sources of information on errors that have occurred:
1,2,3... 1. The CPU Unit’s indicators
2. The Auxiliary Area Error Flags
3. The Auxiliary Area Error Information Words
4. The Auxiliary Area Error Code Word
Error code
Error Log Area
Error code
Error contents
Error code
Error contents
Error code
Error contents
Order of
occurrence
Minute, second
Minute, second
Day, hour
Day, hour
Year, month
Minute, second
Day, hour
Year, month
Year, month
Time of
occurrence
Time of
occurrence
Time of
occurrence
Error Log Pointer (error counter)
Category Result Indicators Comments
RUN ERR/ALM
CPU Standby The CPU Unit will not start opera-
tion in RUN or MONITOR mode.
OFF OFF ---
Non-fatal Errors
(including FAL(006))
The CPU Unit will continue oper-
ating in RUN or MONITOR mode.
ON
(Green)
Flashing
(Red)
Other indicators will also operate
when a communications error has
occurred or the Output OFF Bit is ON.
Fatal Errors
(including FALS(007))
The CPU Unit will stop operating
in RUN or MONITOR mode.
OFF ON
(Red)
The indicators will all be OFF when
there is a power interruption.