Mitsubishi Electric MELSEC Q Series Reference Manual page 519

Error code Error
Communication test
E174
transmission completion
H
signal retried out
Communication test
E175
H
monitoring time timeout
Communication test
E176
transmission completion wait
H
time timed out
E177
H
to Network module error
E179
H
Duplicated communication
E17A
H
test data reception
E17B
Network module error
H
Communication test target
E17C
H
station specification error
IP address not set (own
E17D
H
station)
E17E
Destination IP address error
H
E17F
Network module failure
H
E200
Network module error
H
Duplicated transient data
E201
H
reception error
E202
Network module error
H
E203
Send buffer full
H
Error detail
The maximum number of
transmission completion
signal retries was reached.
No response has been
returned within the
communication monitoring
time.
Timeout has occurred without
transmission completion.
The hardware has failed.
The response data have been
received two times or more.
The hardware has failed.
The communication test
target station is specified
incorrectly.
The own station's IP address
cannot be obtained when an
IP communication test is
performed.
The same numbers are not
used for the first and second
octets of the IP addresses set
in the IP communication test
destination setting in the
network of the request source
device, request destination
device, and modules between
them.
The hardware has failed.
The hardware has failed.
The same transient data have
been received two times or
more.
The hardware has failed.
The send buffer is full.
CHAPTER 10 TROUBLESHOOTING
Corrective action
• Check the network status in the CC IE Control
diagnostics, and retry the operation.
• Check if the routing parameters are set correctly.
• Please consult your local Mitsubishi representative.
• Check the network status in the CC IE Control
diagnostics, and retry the operation.
• Please consult your local Mitsubishi representative.
• Check the "Target Station" setting of communication
test parameters, and retry the operation.
• The communication test cannot be executed to the own
station, a relay station, and a station mounted on the
same base unit (main base unit and extension base
unit).
• Check the destination IP address of the IP
communication test.
• Check the destination IP address of the IP
communication test.
• Retry the operation after a while.
• If the error persists even after taking the above actions,
please consult your local Mitsubishi representative.
• Please consult your local Mitsubishi representative.
• Check the network status in the CC IE Control
diagnostics, and retry the operation.
• Please consult your local Mitsubishi representative.
• Temporarily stop the transient transmission, and then
retry it.
• Reduce the operation frequency of transient
transmission, and then retry the operation.
• Using the COM instruction, increase the processing
frequency of transient transmission.
( Page 326, Section 9.2.1)
• If the error persists even after taking the above actions,
please consult your local Mitsubishi representative.
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