App - 2 App - 2
MELSEC-Q
APPENDICES
APPENDIX 1.2 Description of the errors of the error codes (4000
H
to 4FFF
H
)
The error contents of the error codes (4000
H
to 4FFF
H
) detected by the CPU module
and the messages displayed by the GX Developer are shown below.
Error code
(hexadecimal)
Error
item
Error description Countermeasure
4000
H
Sum check error
Check the connection status of the connection cable
with the CPU module
4001
H
Remote request that is not handled was
executed.
Check the requested remote operation.
4002
H
4003
H
Command for which a global request cannot be
performed was executed.
Check the requested command.
4004
H
CPU module cannot execute the request
contents because it is in system protect
Turn off the CPU module system protect switch.
4005
H
The volume of data handled according to the
specified request is too large.
Reduce the volume of data to that which can be
processed at the specified request.
4006
H
The password cannot be deleted. Delete the set password.
4008
H
CPU
related
error
The CPU module is not BUSY (The buffer is not
vacant).
After the free time has passed, reexecute the request.
4010
H
The CPU module is running to the request
contents cannot be executed.
Execute after setting the CPU module to STOP status.
4011
H
CPU mode
error
The CPU module is not in the STEP-RUN
status so the request contents cannot be
executed.
Execute after setting the CPU module to STEP-RUN
status.
App