Mitsubishi Electric MELSEC Q Series Reference Manual page 311

8 TROUBLESHOOTING
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(2) Checking with GX Works2
The error codes corresponding to the errors that have occurred in network
modules can be checked by following either procedure (a) or (b) described
below.
(a) Checking on the "Module's Detailed Information" screen
Error code, error contents, and corrective action are displayed.
On GX Works2, select [Diagnostics]
the
Detailed Information button.
MELSEC-Q
[System Monitor], and then click
Displays the latest error code.
Displays error history.
Displays description of the error code that
is currently selected under Error history
and corrective action for the error.
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