Mitsubishi Electric MELSEC-L SERIES Basic User Manual page 300

Error code
C403
Simultaneous dedicated instructions execution error
H
C404
Protocol cancel request error
H
C405
Protocol number setting error
H
C406
Continuous protocol execution count setting error
H
C407
Connection number setting error
H
C410
Receive wait timeout error
H
C411
Packet size error
H
C417
Data length setting error, data quantity setting error
H
C420
Flash ROM write error
H
C421
Flash ROM write count over limit error
H
Protocol setting data writing during the ECPRTCL
C430
H
instruction execution
Connection close during the ECPRTCL instruction
C431
H
execution
D000 to
H
(Errors detected by CC-Link IE Field Network)
DFFF
H
E000 to
H
(Errors detected by CC-Link IE Controller Network)
EFFF
H
F000 to
(Errors detected by the MELSECNET/H and
H
FFFF MELSECNET/10 network system)
H
298
Error description Action
• Do not execute dedicated instructions which do not
support simultaneous execution.
• Correct the specified connection number and execute the
dedicated instruction again.
• Check the canceled protocol in the control data of the
ECPRTCL instruction (execution count result) and
eliminate the cause of the cancellation.
• Correct the specified protocol number and execute the
protocol again.
• Correct the number of protocols to be executed
continuously and execute the protocol again.
• Correct the specified connection number and execute the
protocol again.
• Correct the connection setting of the specified connection
number and execute the protocol again.
• Check if the cable is disconnected.
• Correct the connection setting of the specified connection
number and execute the protocol again.
• Check that there is no error in the connected device.
• Check that the sending from the connected device is not
interrupted.
• Check that there is no data lost due to a receive error.
• Check that there is no error in the data (packet) sent by
the connected device.
• Check the data sent by the connected device.
• To send data that exceeds 2046 bytes from the connected
device, divide the data into several parts and send them
separately.
• Check the maximum allowable data length and specify the
maximum length or less in the data length storage area.
• Check the maximum allowable data quantity, and specify
the maximum quantity or less in the data quantity storage
area.
• Write the data again.
• If an error still occurs even after rewriting, replace the
module.
• Replace the module because the number of writes
exceeded the limit.
• If the ECPRTCL instruction is under execution, cancel the
instruction and write the protocol setting data.
• Check the operation of the connected device.
• Check the connection open status with the connected
device.
• Open the connection with the connected device again and
execute the instruction.
Refer to the manual for each module.
Refer to the manual for each module.
• Refer to the MELSECNET/H or MELSECNET/10 network
system reference manual, and take corrective action.