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3 TROUBLESHOOTING
3.5 List of Error Codes
C1A2H • A response to the request could not be received.
• In transient transmission, the number of relay to other
networks exceeded seven.
• Check and correct the response waiting time.
• Change the system configuration so that the number of
relay stations may be seven or less.
• For the RECV instruction, execute again after
correcting the channels used by own station in the
control data.
• For the RECV instruction, check that 'RECV execution
request' (Un\G5301 b0 to b7) are on.
• Check the operation of the external device.
• Check if the external device supports the executed
function.
C1A4H • Any of the specified command, subcommand, or
request destination module I/O number of the SLMP
message is incorrect.
• The specified clear function set by the ERRCLEAR
instruction is incorrect.
• The specified information to be read set by the ERRRD
instruction is incorrect.
• The Ethernet diagnostics, CC-Link IE Field Network
diagnostics, or CC-Link IE Controller Network
diagnostics was tried to be used when the engineering
tool is directly connected to the Ethernet port of the
RJ71EN71.
• The function which is not supported by the target
device was executed.
• Check that all of the specified command,
subcommand, and request destination module I/O
number of the SLMP message is correct.
• Correct the specified value for the clear function set by
the ERRCLEAR instruction.
• Correct the specified value for the information to be
read set by the ERRRD instruction.
• Connect it directly to the CPU module (built-in Ethernet
port part) or use a USB cable to use the Ethernet
diagnostics, CC-Link IE Field Network diagnostics, or
CC-Link IE Controller Network diagnostics.
C1A5H The specified target station or clear target is incorrect. Correct the specified the target station or clear target.
C1A6H The specified connection number is incorrect. Correct the setting value of the connection number.
C1A7H The specified network number is incorrect. Correct the specified network number.
C1A8H The specified station number is incorrect. Correct the specified station number.
C1A9H The specified device number is incorrect. Correct the specified device number.
C1AAH The specified device name is incorrect. Correct the specified device name.
C1ACH The specified number of resends is incorrect. Correct the number of resends.
C1ADH The specified data length is incorrect. Correct the specified data length.
C1AFH The specified port number is incorrect. Correct the specified port number
C1B0H The open processing of the specified connection has
been already completed.
• Do not perform the open processing to a connection
already opened.
• When communications with the external device cannot
be performed, perform the close processing before the
open processing.
C1B1H The open processing of the specified connection has not
been completed.
After completion of the open processing, perform the
communication.
C1B2H The open or close processing using CONOPEN/
CONCLOSE/OPEN/CLOSE instruction is being executed
in the specified connection.
Execute again after the CONOPEN/CONCLOSE/OPEN/
CLOSE instruction is completed.
C1B3H Another send or receive instruction is being executed in
the specified channel.
• Change the channel number.
• Execute again after the send or receive instruction is
completed.
C1B4H The specified arrival monitoring time is incorrect. Set the arrival monitoring time to a value within the
allowable range.
C1B8H The RECV instruction was executed for the channel that
had not received data.
• Correct the execution condition of the RECV
instruction for the channel that had received data.
• Correct the specified channel of the RECV instruction.
C1B9H The CONOPEN/OPEN instruction cannot be executed
for the specified connection.
Correct the specified connection.
C1BAH The dedicated instruction was executed with the
initialization not completed.
Execute the dedicated instruction after the initial
processing is completed.
C1BBH The target station CPU type of the link dedicated
instruction is incorrect.
Correct the specified target station CPU type.
C
1BCH The target network number of the link dedicated
instruction is incorrect.
• Execute the link dedicated instruction again after
correcting the network number.
• When specifying another network station, check if the
settings in "Routing Setting" of "CPU Parameter" are
made correctly.
Error
code
Error details and causes Action Detailed information
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