Mitsubishi Electric MELSEC-Q Series User Manual page 277

(2) Troubleshooting by the status logging
Select "RAM".
Start
Register
No
the logs to the
flash ROM?
Yes
Delete the
No
flash ROM data and
execute logging?
Yes
No
Is the system
in data link?
Yes
Stop data link.
Select "RAM + Flash ROM".
Clear the logs.
Restart data link.
Select "RAM + Flash ROM".
Start the logging.
Stop the logging.
No
There is a faulty station.
Yes
Check the cables and noise
around the faulty station.
Check items B2-2 and B2-3 in
Page 282, Section 11.2.1 (2)
End
CHAPTER 11 TROUBLESHOOTING
Select "RAM + Flash ROM".
Clear the logs.
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