Mitsubishi Electric QJ71E71-100 User Manual page 339

Error
Error description
code
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
H
to (Errors detected by CC-Link IE Field Network)
DFFF
H
E000
H
to (Errors detected by CC-Link IE Controller Network)
EFFF
H
F000
H
(Errors detected by the MELSECNET/H and
to
MELSECNET/10 network system)
FFFF
H
Remark
The error codes listed in the table include those returned to the connected device. Each buffer memory may also store the
error numbers of the response messages returned from the connected device. If an error code other than those listed is
stored, check the manual for the connected device and the response message from the connected device.
CHAPTER 16 TROUBLESHOOTING
Action
• 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.
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