APPX
Appendix 1 Error Codes
761
A
Codes of errors detected by other than the self-diagnostic function (4000H to 4FFFH)
The following table lists the codes of errors, other than those detected by the self-diagnostic function of the CPU module.
■Error codes returned to request source during communications with the CPU module
• Errors generated when the data communications are requested from the engineering tool, intelligent function module, or
network system connected
• Errors generated with the data logging function
These error codes are not stored in SD0 because they are not detected by the self-diagnostic function of the CPU module.
Error
code
Error name Error details and cause Action
4000H Common error • Serial communication sum check error • Connect the serial communication cable correctly.
• Take measures to reduce noise.
4001H Common error • An unsupported request was executed.
(The request was executed to the CPU module that does not
support the request.)
• Check the command data of the SLMP/MC protocol.
• Check the CPU module model name selected in the
engineering tool.
• Check the target CPU module model name.
4002H Common error • An unsupported request was executed. • Check the command data of the SLMP/MC protocol.
• Check the CPU module model name selected in the
engineering tool.
• Execute the request 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.
4003H Common error • Command for which a global request cannot be performed
was executed.
• Check the command data of the SLMP/MC protocol.
4004H Common error All the operations to the CPU module are disabled because of
the following reason:
• The CPU module is starting up.
• Perform operations to the CPU module again after the start-
up processing ends.
4005H Common error • The amount of data handled according to a specified
request is out of range.
• Check the command data of the SLMP/MC protocol.
4006H Common error • Initial communication has failed. • When using serial communication, inquire of the external
device manufacturer for support conditions.
• When using serial communication, check the CPU module
model name selected in the engineering tool.
• When using Ethernet communication, shift the
communication start timing.
4008H Common error • The CPU module is BUSY. (The buffer is not vacant.) • Execute the request again after the specified period of time
has elapsed.
400BH Common error • A set value of data handled according to a specified request
is invalid.
• Check the request data of a dedicated instruction.
• Check the command data of the SLMP/MC protocol.
4010H CPU module
operation error
• The request cannot be executed because the CPU module
is running.
• Set the operating status of the CPU module to STOP, and
execute the request again.
4013H CPU module
operation error
• The request cannot be executed because the CPU module
is not in the STOP state.
• Set the operating status of the CPU module to STOP, and
execute the request again.
4021H File related error • The specified drive (memory) does not exist or there is an
error.
• Check the specified drive (memory) status.
• Back up data in the CPU module, and then initialize the
memory.
4022H File related error • The file with the specified file name or file No. does not exist.
• The specified program block does not exist.
■When CPU Module Logging Configuration Tool is used
The data logging was started in the following state.
• A program name (program No.) that does not exist was
specified.
• Check the specified file name and file No.
• Check the specified program block name.
■When CPU Module Logging Configuration Tool is used
• Check the specified program name.
4023H File related error • The file name and file No. of the specified file do not match. • Delete the file and then recreate the file.
4024H File related error • The specified file cannot be handled by a user. • Do not access the specified file.
4025H File related error • The specified file is processing the request from another
engineering tool.
• Forcibly execute the request. Or, execute the request again
after the processing being performed ends.
4026H File related error • The file password set in advance to the target drive
(memory) must be specified.
• Specify the file password set in advance, and then access to
the drive (memory).
4027H File related error • The specified range is larger than the file size. • Check the specified range and access within that range.
4028H File related error • The same file already exists. • Forcibly execute the request. Or, change the file name and
execute the request again.
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