Mitsubishi 900 Series User Manual page 80

9 ERROR CODES AND ERROR MESSAGES
Error
Error Message
Code
The same bureau is set by
424
GOT and monitor data.
Devices outside file register
448
and other ranges included
Communication destination
470
faulty
499 CPU communication error
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Definition
The station number set on the utility screen of
the GOT is the same as the station number set
in the Ethernet setting of GT Designer (station
number of the PLC side Ethernet module) or
the station number set as the screen data.
Devices specified are outside file register or
buffer memory range of QnACPU
During monitoring of the other station via
MELSECNET/10, a fault occurred in the
corresponding communication station
Other communication error
MELSEC-GOT
Action
Check the following data and do not use the
same station number.
1. Check the station number of the GOT on the
utility screen of the GOT.
2. Check the station number set as the screen
data.
3. Check the station number set in the Ethernet
setting.
(Use the station number of the PLC side
Ethernet module set in the parameter setting
of GX Developer.)
Set PLC file registers. Also correct monitor
devices
Check whether the corresponding
communication station has been set correctly
in the management station (reconsider the
parameters, switch setting, etc.)
Check for any disconnected cable or
improperly fitted communication module
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