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Chapter 16 Troubleshooting
(2) Checking errors on the "Error History" screen.
POINT
The PLC CPU and GX Works2 that support the module error collection function are
required to confirm errors on the "Error History" screen. Refer to each PLC CPU
manual for the version of the PLC CPU or GX Works2 that supports the module
error collection function.
On the "Error History" screen, the error logs of the QD77MS 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 PLC CPU is powered off and then on or reset.
Select [Diagnostics]
[System Monitor] [System Error History] button on
GX Works2.
(b)
(c)
(a)
(a) Error History List
Module error logs are displayed in a list.
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