Mitsubishi L26CPU-BT, User Manual, Page: 341 / 450

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15 TROUBLESHOOTING
(b) Checking on the "Error History" screen
On this screen, errors including those occurred in other modules are
displayed, and these data can be output in a CSV file.
Error code and date and time of error occurrence can be checked even
after powering off and then on the programmable controller or resetting the
programmable controller CPU.
In GX Works2, select [Diagnostics] [System Monitor], and then click the
Error History Detail button.
1)
2)
3)
1) Error History List
The error log of the module is displayed.
For errors occurred during initial processing of the programmable
controller CPU, the date and time will be 0000/00/00 00:00:00,
therefore the displayed order under Error history list is not in the order
in which the errors occurred. (Example: Station number setting error)