APPENDICES

MELSEC-Q

APPENDIX 1.2 Description of the errors of the error codes (4000H to 4FFFH)

The error contents of the error codes (4000H to 4FFFH) detected by the CPU module and the messages displayed by the GX Developer are shown below.

App

 

Error code

 

Error

Error description

Countermeasure

 

(hexadecimal)

 

item

 

 

 

 

 

 

4000H

 

 

Sum check error

Check the connection status of the connection cable

 

 

 

 

with the CPU module

 

 

 

 

 

 

 

 

4001H

 

 

Remote request that is not handled was

Check the requested remote operation.

 

 

 

 

executed.

 

 

 

 

 

 

 

 

4002H

 

 

Command for which a global request cannot be

Check the requested command.

 

 

4003H

CPU

 

 

 

 

performed was executed.

 

 

 

4004H

related

CPU module cannot execute the request

Turn off the CPU module system protect switch.

 

 

error

 

contents because it is in system protect

 

 

 

 

 

 

 

4005H

 

 

The volume of data handled according to the

Reduce the volume of data to that which can be

 

 

 

 

specified request is too large.

processed at the specified request.

 

 

 

 

 

 

 

4006H

 

 

The password cannot be deleted.

Delete the set password.

 

 

4008H

 

 

The CPU module is not BUSY (The buffer is not

After the free time has passed, reexecute the request.

 

 

 

 

 

vacant).

 

 

 

4010H

 

 

The CPU module is running to the request

Execute after setting the CPU module to STOP status.

 

 

 

 

contents cannot be executed.

 

 

 

CPU mode

 

 

 

 

The CPU module is not in the STEP-RUN

 

 

 

 

error

 

Execute after setting the CPU module to STEP-RUN

 

 

4011H

 

status so the request contents cannot be

 

 

 

 

status.

 

 

 

 

 

executed.

 

 

 

 

 

 

App - 2

App - 2