Mitsubishi Electric MELSEC-Q Series User Manual page 232

Error code
Data link start/stop instruction out of
D720H
range
Data link start/stop retry error
D721H
(another station)
Data link start/stop retry error (own
D722H
station)
Data link start/stop retry error
D723H
(entire system)
D724H Data link start/stop station error
Transient data request command
D726H
error
Data link start/stop command-
D727H
instructing stations different
Data link start/stop command-
D728H
instructing stations different
D780H History acquisition setting data full
D781H Network module failure
D782H History acquisition setting data error
D783H to D784H Transient data request error
D785H Flash ROM failure
D786H Flash ROM failure
D800H Network module failure
D803H to D805H Network module failure
D806H Receive queue full
Error
Check the setting, and stop or start data link.
Retry the operation after the stop or restart of data link is completed.
Retry the operation after the stop or restart of data link is completed.
Retry the operation after the stop or restart of data link is completed.
Check the setting, and stop or start data link.
Correct the request command at the request station, and retry the
operation.
• Data link start was instructed from a station different from the one that
had instructed the data link stop. Instruct data link start and data link stop
from the same station.
• The method of the data link start differs from that of the data link stop.
Instruct the data link start using the same method as the data link stop
(ex. Data link is stopped using the CC-Link IE Field Network diagnostics,
and the data link is started using a program).
• Data link start failed. Forcibly restart the data link.
Data link start was instructed during execution of data link. Instruct data
link stop then data link start.
The area for writing history acquisition setting data for network event
history is insufficient. Reset or power off and on the CPU module.
• A malfunction may have occurred due to noise. Check the wire and cable
distances and grounding condition of each device, and take measures
against noise.
• The hardware of the Simple Motion module may be faulty. Please consult
your local Mitsubishi service center or representative.
The previous history acquisition setting data for network event history were
not written successfully. Reset or power off and on the CPU module.
• The read request by the CC-Link IE Field Network diagnostics of the
programming tool is incorrect. Close the "CC IE Field Diagnostics"
window, and request it again.
• Check the read request data at the request station, and retry the
operation.
The maximum number of writes to the flash ROM is exceeded. Replace
the Simple Motion module.
The flash ROM may be faulty. Please consult your local Mitsubishi service
center or representative.
• A malfunction may have occurred due to noise. Check the wire and cable
distances and grounding condition of each device, and take measures
against noise.
• The hardware of the Simple Motion module may be faulty. Please consult
your local Mitsubishi service center or representative.
• A malfunction may have occurred due to noise. Check the wire and cable
distances and grounding condition of each device, and take measures
against noise.
• The hardware of the Simple Motion module may be faulty. Please consult
your local Mitsubishi service center or representative.
• Reduce the frequency of transient transmission, and retry the operation.
• Check if the cables and the switching hub are connected properly.
• Use the COM instruction to increase the frequency of transient
transmission.
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Chapter 12 TROUBLESHOOTING
Action