Troubleshooting With Gx Developer - Mitsubishi Electric MELSEC QS SERIES User Manual

9
TROUBLESHOOTING

9.4 Troubleshooting with GX Developer

Errors which occur in the safety remote I/O module can be verified on the PLC diagnostics
screen in GX Developer.
(1) Reading an error code
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When an error occurs, its error code, error message, etc. can be read using the PLC
diagnostic function of GX Developer.
Errors of the safety remote I/O module are registered as remote I/O station error
information in "Operation/error history".
The error history of the safety remote I/O module must be read to the safety CPU
module beforehand.
For reading the error history of the safety remote I/O module, refer to Section 4.5.
The following shows the procedure for reading the error code using GX Developer.
1) Start GX Developer.
2) Connect the safety CPU module and personal computer.
3) Read projects from the safety CPU module by selecting [Online]
PLC] in GX Developer.
4) Select [Diagnostic]
5) If the error display part in "Present error" or "Operation/error log" is
double-clicked, the error details dialog box appears.
Figure 9.9 PLC diagnostics screen
[PLC diagnostic] from the menu.
[Read from