Mitsubishi 00JCPU User Manual page 285

6.18 Error History
This function stores an error detected by the self-diagnostic function and the detection time as an error history in a
memory.
Select [Diagnostics]
The detection time is based on the clock in the CPU module. Make sure to set the correct time before the first use of the
CPU module.
( Section 6.5)
6.18.1Basic model QCPU
(1) Storage area
16 latest error logs are stored in the latched error history storage memory of the Basic model QCPU.
(2) Storage data
If the same error occurs several times while the CPU module is on, the error logs are stored in the error history
storage memory once.
(3) How to clear error history
To clear the storage memory for error history, select [Diagnostics]
the
Clear log
This method clears all data stored in the storage memory for error history of the Basic model QCPU.
[PLC diagnostics] of GX Developer to check the history.
button.
CHAPTER6 FUNCTIONS
[PLC diagnostics] in GX Developer and click
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