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CHAPTER 12 TROUBLESHOOTING
12
12.5 Error Code List
D728
H
Data link start/stop command-
instructing stations different
Data link start was instructed during execution of data link. Instruct data link
stop then data link start.
D72B
H
to D72C
H
Illegal access to network module error
Data were written to a use-prohibited SB/SW or buffer memory. Correct the
destination address.
D730
H
Illegal access to network module error
Data were written to a use-prohibited SB/SW or buffer memory. Correct the
destination address.
D780
H
History acquisition setting data full
The area for writing history acquisition setting data for network event history
is insufficient. Reset or power off and on the CPU module.
D781
H
Network module failure
• 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.
• Execute hardware and self-loopback tests. If a failure occurs again, the
hardware of the master/local module may be faulty. Please consult your
local Mitsubishi representative.
D782
H
History acquisition setting data error
The previous history acquisition setting data for network event history were
not written successfully. Reset or power off and on the CPU module.
D783
H
to D784
H
Transient data request error
• 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.
D785
H
Flash ROM failure
The maximum number of writes to the flash ROM is exceeded. Replace the
master/local module.
D786
H
Flash ROM failure
The flash ROM may be faulty. Execute hardware and self-loopback tests. If a
failure occurs again, the hardware of the master/local module may be faulty.
Please consult your local Mitsubishi representative.
D800
H
Network module failure
• 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.
• Execute hardware and self-loopback tests. If a failure occurs again, the
hardware of the master/local module may be faulty. Please consult your
local Mitsubishi representative.
D803
H
to D805
H
Network module failure
• 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.
• Execute hardware and self-loopback tests. If a failure occurs again, the
hardware of the master/local module may be faulty. Please consult your
local Mitsubishi representative.
D806
H
Receive queue full
• Reduce the frequency of transient transmission, and retry the operation.
• Check if the cables and the switching hub are connected properly.
D807
H
Network module failure
• 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.
• Execute hardware and self-loopback tests. If a failure occurs again, the
hardware of the master/local module may be faulty. Please consult your
local Mitsubishi representative.
D80A
H
to D80F
H
Parameter error
• Write the network parameters to the CPU module again.
• If this error persists, please consult your local Mitsubishi representative
D812
H
to D813
H
Parameter error
• Write the network parameters to the CPU module again.
• If this error persists, please consult your local Mitsubishi representative.
Error code Error Action