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MELSEC-F
TROUBLESHOOTING11
11 - 23
Error code
(abnormal
code)
Description of error Error handling
Storage destination
Initial
Open
Fixed
sending
Connection
Error code
E-mail log
BFM#
105
BFM#
124
BFM#
125
BFM#
126
BFM#
229
BFM#
23361
C05F
H
The request could not be executed on the target
PLC.
• Correct the network number and PC number.
• Correct the content of the read/write request.
C060
H
The content of a request is incorrect.
(Incorrect data was designated for bit devices,
etc.)
• Correct the content of the request and send
to the Ethernet module again.
(Correction of data, etc.)
C072
H
The content of a request is incorrect.
(Requested read/write in bit units to word
devices.)
• Check whether the content can be requested
to the target PLC.
• Correct the content of the request and send it
to the Ethernet module again.
C073
H
Request was not supported by the Ethernet
module of the target PLC.
• Review the content of the request.
C086
H
A message exceeding the receive message
size was received.
• Correct the send message size from the
requesting source.
C091
H
System Error
(Flash ROM write error)
(*1)
C093
H
System Error
(The parameters written to flash ROM are
abnormal.)
(*1)
C0B5
H
Data that could not be processed by the PLC/
Ethernet module was designated.
• Review the content of the request.
• Cancel the current request.
C0B9
H
The open processing of the applicable
connection is has not been completed.
• Execute the open processing.
• Check the operation of the external device.
C0BA
H
Cannot acknowledge sending request since the
close processing is being executed via the
CLOSE instruction.
• Execute the open processing and make a
sending request.
C0BB
H
System error
• The OS detected any error.
(*1)
C0BC
H Designated communication line is closed.
• Open the communication line.
• Review the target connection number.
C0BD
H
Cannot send by acknowledging continuous
requests.
• Check whether or not requests are made
continuously without waiting for responses.
C0BE
H
System error
• The OS detected any error.
(*1)
C0BF
H
C0C0H
The receiving completion confirmation signal
was turned on when the receiving completion
signal was not on.
• Review and correct the program.
C0C1
H The transmission interval of UDP is too short.
• Check whether or not sending requests are
repeated.
• Make the sending interval longer.
C0C2
H
to
C0C3
H
Systevm error
• The OS detected any error.
(*1)
C0C4
H
Re-initialization was started during
communication
• Execute re-initialization after closing all
connections.
C0C5
H
• A sending request was made to an external
device whose class/network address are
different from those of the local station when
the router relay function is not used.
• The setting of the router relay parameter is
incorrect.
• Execute the initial processing by setting that
the router relay function should be used.
• Set the correct data for the router relay
parameter.
• Correct the IP address of the external device
and execute the open processing.
• Check that the network address is correct.
When it is changed, execute the initial
processing again.
C0C6
H
System error
• The OS detected any error.
(*1)