Mitsubishi Electric MELSEC iQ-R Series User Manual page 120

Error codes detected by other causes than self-diagnostic function (4000H to 4FFFH)
If an error occurs when the data communications are requested from the engineering tool, intelligent function module, or
network system connected, the remote head module returns the corresponding error code (4000H to 4FFFH) to the request
source.
These error codes are not stored in 'Latest self-diagnostic error code' (SD0) because the errors are not the ones detected by
the self-diagnostic function of the remote head module.
When the request source is an engineering tool, a message and an error code are displayed on the engineering tool.
When the request source is an intelligent function module or network system, the remote head module returns an error code
to the request source.
Error code Error name
4000H Common error
4001H Common error
4002H Common error
4003H Common error
4004H Common error
4005H Common error
4006H Common error
4008H Common error
4010H Remote head module
operation error
4013H Remote head module
operation error
4021H File related error
4022H File related error
4023H File related error
4024H File related error
4025H File related error
4026H File related error
4 TROUBLESHOOTING
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4.7 Error Codes
Error details and cause
Serial communication sum check error
An unsupported request was executed.
(The request was executed to the remote head
module that does not support the request.)
An unsupported request was executed.
Command for which a global request cannot be
performed was executed.
All the operations to the remote head module are
disabled because of the following reason:
• The remote head module is starting up.
The volume of data handled according to the
specified request is too large.
Initial communication has failed.
The remote head module is BUSY. (The buffer is not
vacant.)
The request cannot be executed because the
remote head module is running.
The request cannot be executed because the
remote head module is not in a STOP state.
The specified drive (memory) does not exist or there
is an error.
The file with the specified file name or file No. does
not exist.
The file name and file No. of the specified file do not
match.
The specified file cannot be handled by a user.
The specified file is processing the request from
another engineering tool.
The file password set in advance to the target drive
(memory) must be specified.
Action
• Connect the serial communication cable correctly.
• Take measures to reduce noise.
• 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.
• 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 remote
head module. Please consult your local Mitsubishi
representative.
Check the command data of the SLMP/MC protocol.
Perform operations to the remote head module
again after the start-up processing ends.
Check the command data of the SLMP/MC protocol.
• 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.
Execute the request again after the specified period
of time has elapsed.
Set the operating status of the remote head module
to STOP, and execute the request again.
Set the operating status of the remote head module
to STOP, and execute the request again.
• Check the specified drive (memory) status.
• Back up data in the remote head module, and
then initialize the memory.
Check the specified file name and file No.
Delete the file and then recreate the file.
Do not access the specified file.
Forcibly execute the request. Or, execute the
request again after the processing being performed
ends.
Specify the file password set in advance, and then
access to the drive (memory).