3 TROUBLESHOOTING
3.5 List of Error Codes
313
3
3C00H
to
3C03H
A hardware failure has been detected. • Take measures to reduce noise.
• Reset the CPU module, and run it again. If the same
error code is displayed again, the possible cause is a
hardware failure of the error module. Please consult
your local Mitsubishi representative.
3C0FH
to
3C11H
A hardware failure has been detected. • Take measures to reduce noise.
• Reset the CPU module, and run it again. If the same
error code is displayed again, the possible cause is a
hardware failure of the error module. Please consult
your local Mitsubishi representative.
3C13H A hardware failure has been detected. Reset the CPU module, and run it again. If the same
error code is displayed again, the possible cause is a
hardware failure of the error module. Please consult your
local Mitsubishi representative.
3C14H A hardware failure has been detected. Reset the CPU module, and run it again. If the same
error code is displayed again, the possible cause is a
hardware failure of the error module or CPU module.
Please consult your local Mitsubishi representative.
3C2FH An error was detected in the memory. Reset the CPU module, and run it again. If the same
error code is displayed again, the possible cause is a
hardware failure of the error module. Please consult your
local Mitsubishi representative.
3E01H Network type of the own station is unexpected setting. Rewrite the module parameter using the engineering
tool. If the same error code is displayed again, the
possible cause is a hardware failure of the error module.
Please consult your local Mitsubishi representative.
4000H
to
4FFFH
Errors detected by the CPU module ( MELSEC iQ-R CPU Module User's Manual (Application))
C001H • The IP address setting value of the E71 for the initial
processing is incorrect.
• The setting value of the subnet mask field for the router
relay function is incorrect.
• Correct the IP address setting value for the initial
processing.
• Check if the class of the IP address is set to A/B/C.
• Correct the subnet mask setting value for the initial
processing.
C012H The port number used in a connection already opened is
set. (For TCP/IP)
Correct the port numbers of the Ethernet-equipped
module and the external device.
C013H The port number used in a connection already opened is
set. (For UDP/IP)
Correct the port numbers of the Ethernet-equipped
module and the external device.
C015H • The specified IP address of the external device for the
open processing is incorrect.
• The specified IP address of the external device of the
dedicated instruction is incorrect.
• Correct the specified IP address of the external device
of the CONOPEN/OPEN instruction. Set the class to A/
B/C.
• Execute the dedicated instruction again after
correcting the specified IP address of the external
device.
C016H The open processing of the connection specified for
pairing open has been already completed.
• Check that none of the connections targeted for pairing
open has been opened.
• Correct the combination of modules set for pairing
open.
C018H The specified IP address of the external device is
incorrect.
Correct the specified IP address of the external device.
C020H The send/receive data length exceeds the allowable
range.
• Correct the data length to be sent.
• When the amount of data to be sent exceeds the limit,
divide the data into smaller chunks to send it.
C021H An abnormal end response was received for
communications using the fixed buffer and random
access buffer.
• Check the command/response type of the subheader.
• Check the data length setting to be sent.
• Check if the communication data code setting of the
Ethernet-equipped module meets the binary/ASCII of
the message to be sent.
C022H • A response could not be received within the response
monitoring timer value.
• The connection with the external device was closed
while waiting for a response.
• Check the operation of the external device.
• Correct the response monitoring timer value of the
Ethernet-equipped module.
• Check the open status of the connection with the
ex
ternal device.
Error
code
Error details and causes Action Detailed information
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