When Receiving Inputs Or Outputting Data From A Remote Station Is Not Possible Despite "Err." Led Off Status Of The Safety Master Module - Mitsubishi Electric MELSEC QS Series User Manual

9
TROUBLESHOOTING
9.2.3 When receiving inputs or outputting data from a remote station is not
possible despite "ERR." LED OFF status of the safety master module
Inputs from a remote station
cannot be received/A remote
station cannot output data.
Are remote input RX, remote output
RY, and remote registers RWr/RWw
in buffer memory updated?
(Check this with the buffer memory
batch monitor function.)
Are addresses of remote input RX, remote
output RY and remote registers RWr/RWw
Is there duplication in station
numbers?
The hardware of the remote station may be faulty.
Replace the remote station.
9.2.3 When receiving inputs or outputting data from a remote station is not possible despite "ERR." LED
No
Is the mode in network parameters
set to "Safety remote network-Ver.1
mode"?
Is the remote station recognized by
the safety master module? (Check
this on the other station monitor of the
CC-Link diagnostics.
Yes
Has an error occurred on the remote
station ? (Check this with the other
station monitor of the CC-Link
Is the remote station set as a
reserved station? (Check this with
the other station monitor of the CC-
Link diagnostics.)
No
correct?
Yes
No
Modify the station No. setting of the
remote station.
Yes
9.2 Check with LEDs (1) - at System Start-up
No
Change the mode in network
parameters to "Safety remote
network-Ver.1 mode".
Yes
No
Modify the network parameter setting.
Yes
Yes
diagnostics.)
Refer to the troubleshooting of
the remote station.
No
Yes
Cancel the reserved station setting.
No
Modify the sequence program and
the auto refresh setting.
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