10 TROUBLESHOOTING
10.5 List of Error Codes
229
10
C039H Data was not sent correctly with TCP/IP. • Check the settings for connection with the external device
(including an industrial switch) and the operation of the external
device (error or during resetting). Check that there is no connection
failure (if the Ethernet cable is disconnected).
• Since there may be congestion of packets on the line, send data
after a certain period of time.
• Execute the PING test and communication status test, and if the
test was completed with an error, take the corrective action.
C040H • Sufficient data for the data length could not be
received.
• The remaining part of the message divided at
the TCP/IP level could not be received.
• Correct the data length of the communication data.
• Since there may be congestion of packets on the line, send the
data again from the external device after a random amount of time
has passed.
C050H ASCII code data that cannot be converted to
binary code was received.
Check if the ASCII code data that cannot be converted into binary
code data was sent from the external device.
C051H • The number of read/write points from/to the
device of SLMP message is out of the allowable
range in the CPU module (in units of words).
• The number of write points for the long counter
of SLMP message is not in two-word units.
Correct the number of read/write points and send the SLMP
message to the Ethernet-equipped module again.
C052H The number of read/write points from/to the
device of SLMP message is out of the allowable
range in the CPU module (in units of bits).
Correct the number of read/write points and send the SLMP
message to the Ethernet-equipped module again.
C053H The number of read/write points from/to the
random device of SLMP message is out of the
allowable range in the CPU module (in units of
bits).
Correct the number of read/write points and send the SLMP
message to the Ethernet-equipped module again.
C054H The number of read/write points from/to the
random device of SLMP message is out of the
allowable range in the CPU module (in units of
words, double words).
Correct the number of read/write points and send the SLMP
message to the Ethernet-equipped module again.
C055H The read/write size from/to the file data of SLMP
message is out of the allowable range.
Correct the read/write size and send the SLMP message to the
Ethernet-equipped module again.
C056H The read/write request exceeds the largest
address.
• Correct the start address or the number of read/write points so that
the request does not exceed the largest address and send the data
to the Ethernet-equipped module again.
• If the access target and connection stations are modules of the
MELSEC iQ-R series, send the SLMP message again to the
Ethernet-equipped module using 003 and 002 of
subcommands.
C057H The request data length of the SLMP message
does not match the number of data in the
character (a part of text).
Check and correct the text or request data length, and send the
SLMP message to the Ethernet-equipped module again.
C058H The request data length of the SLMP message
after the ASCII/binary conversion does not match
with the number of data in the character (a part of
text).
Check and correct the text or request data length, and send the
SLMP message to the Ethernet-equipped module again.
C059H • The specified command and subcommand of
the SLMP message are incorrect
• A function that is not supported by the target
device was executed.
• Check that there are no errors in the specification of the command
and subcommand of the SLMP message.
• Check whether the function executed is supported by the target
device.
• Check the version of the target device.
C05AH The Ethernet-equipped module cannot read/write
data from/to the device specified by the SLMP
message.
Correct the specification of the device to be read/written and send the
SLMP message to the Ethernet-equipped module again.
C05BH The Ethernet-equipped module cannot read/write
data from/to the device specified by the SLMP
message.
Correct the specification of the device to be read/written and send the
SLMP message to the Ethernet-equipped module again.
Error
code
Error definition and causes Action Detailed
information 1
Detailed
information 2
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