602
36 ERROR CODES
36.4 List of Error Codes
3E00H Operation circuit
error
■CPU module
• An error has been detected in the
CPU module.
■Redundant function module
• An error has been detected in the
redundant function module.
Stop ■CPU module
• Take measures to reduce noise.
• Check the mounting status of the
CPU module.
• Format the memory. Write all files
to the CPU module. Then, 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 CPU
module. Please consult your local
Mitsubishi representative.
■Redundant function module
• Reset the CPU module.
• If the error code is displayed again
even after taking an action, please
consult your local Mitsubishi
representative.
Failure
information
At power-on, at
RESET
3E20H Program
execution error
• The entire program was executed
without executing the END instruction.
Stop • Take measures to reduce noise.
• Check the mounting status of the
CPU module.
• Format the memory. Write all files
to the CPU module. Then, 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 CPU
module. Please consult your local
Mitsubishi representative.
Failure
information
At END
instruction
execution
3E22H Program
execution error
• The FB/FUN program did not
complete successfully.
Stop • Take measures to reduce noise.
• Check the mounting status of the
CPU module.
• Format the memory. Write all files
to the CPU module. Then, 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 CPU
module. Please consult your local
Mitsubishi representative.
Failure
information
At instruction
execution
Error
code
Error name Error details and cause Stop/
continue
Action Detailed
information
Diagnostic
timing
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