Mitsubishi Electric L26CPU-BT User Manual page 346

(2) Troubleshooting by status logging
Select "RAM".
*1 Page 351, Section 15.2.1 (2)
344
Start
Register
No
the logs to the
flash ROM?
Yes
No
Clear the flash ROM 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
*1
around the faulty station.
End
Select "RAM + Flash ROM".
Clear the logs.