Mitsubishi QD75P1N User Manual page 798

APPENDICES
(2) Checking errors on the "Error History" screen. (for the QD75P N/QD75D N
only)
On the "Error History" screen, the error logs of the QD75 are displayed in a list
together with the error logs of other modules. The logs can be output to a CSV
format file. The error codes and the time of error occurrence can be checked
even after the CPU module is powered off and then on or reset.
Select [Diagnostics]
GX Works2.
(a) Error History List
Module error logs are displayed in a list.
[System Monitor...]
Appendix - 112
MELSEC-Q
System Error History button on
(a)
(b)
(c)