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12.5 Error codes returned to request source during communication with CPU module
12
TROUBLESHOOTING
Table12.10 Error code (Continue)
Error code
(Hexadecimal)
Error item Error details Corrective action
4021
H
CPU file
related error
The specified drive memory does not exist or
there is an error.
• Check the specified drive memory status.
• After backing up the data in the CPU module, execute
PLC memory format.
4022
H
The file with the specified file name or file No.
does not exist.
Check the specified file name and file No.
4023
H
The file name and file No. of the specified file
do not match.
Delete the file and then recreate the file.
4024
H
The specified file cannot be handled by a user. Do not access the specified file.
4025
H
The specified file is processing the request
from the other peripheral device.
Forcibly execute the request, or make the request again
after the processing from the other peripheral device is
completed.
4026
H
The file password or drive keyword set to the
target drive (memory) must be specified.
Make access after specifying the file password or drive
keyword set to the target drive (memory).
4027
H
The specified range exceeds the file range. Check the specified range and access within that range.
4028
H
The same file already exists.
Forcefully execute the request forcibly.
Or reexecute after changing the file name.
4029
H
The specified file capacity cannot be obtained.
Revise the specified file contents.
Or reexecute after cleaning up and reorganizing the
specified drive memory.
402A
H
The specified file is abnormal.
After backing up the data in the CPU module, execute
PLC memory format.
4030
H
CPU device
specified error
The specified device name cannot be handled. Check the specified device name.
4031
H
The specified device No. is outside the range.
• Check the specified device No.
• Check the device assignment parameters of the CPU
module.
4032
H
There is a mistake in the specified device
qualification.
Check the specified device qualification method.
4040
H
Intelligent
function
module
specification
error
The request contents cannot be executed in
the specified intelligent function module.
Check whether the specified module is the intelligent
function module having the buffer memory.
4041
H
The access range exceeds the buffer memory
range of the specified intelligent function
module.
Check the header address and access number of points
and access using a range that exists in the intelligent
function module.
4042
H
The specified intelligent function module
cannot be accessed.
• Check that the specified intelligent function module is
operating normally.
• Check the specified module for a hardware fault.
4043
H
The intelligent function module does not exist
in the specified position.
Check the I/O No. of the specified intelligent function
module.
4052
H
Protect error
The specified file attribute is read only so the
data cannot be written.
Do not write data in the specified file.
Or change the file attribute.
4054
H
An error occurred when deleting the data in
the specified drive memory.
Check the specified drive memory.
Or re-erase after replacing the corresponding drive
memory.