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MELSEC-Q
APPENDICES
Error code
(hexadecimal)
Error
item
Error description Countermeasure
4050
H
The request contents cannot be executed
because the memory card write protect switch
is on.
Turn off the memory card write protect switch.
4051
H
The specified device memory cannot be
accessed.
Check the following and make it countermeasures.
• Is the memory one that can be used?
• Is the specified drive memory correctly installed?
4052
H
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.
4053
H
An error occurred when writing data to the
specified drive memory.
Check the specified drive memory.
Or reexecute write after changing the corresponding
drive memory.
4054
H
Protect error
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.
4060
H
The monitor condition registration CPU module
system area is already being used by another
piece of equipment.
Reexecute monitor after the monitor by the other
equipment has completed. Or increase the system area
of the program memory using the format with option.
4061
H
Communication failed. Execute a re-communication.
4062
H
The monitor detail condition is already being
used and monitored by another piece of
equipment.
Do not conduct monitor detail condi-tions from the
specified equipment.
Or reexecute monitoring after deleting the monitor detail
conditions of the other equipment.
4063
H
The number of the file lock registrations
exceeds 16.
Reduce the number of registrations to 16 or less.
4064
H
There is a problem with the specified contents. Check the specified contents.
4065
H
The device allocation information differs from
the parameter.
Check the parameter.
Or check the data.
4066
H
A keyword that differs from the keyword set in
the specified driver memory has been specified.
Check the specified keyword.
4067
H
The specified monitor file cannot be obtained. Conduct monitor after obtaining the monitor file.
4068
H
Registration/deletion cannot be conducted
because the specified command is being
executed.
Reexecute the command after the request from the
other equipment has been completed.
4069
H
The conditions have already been reached by
the device match.
Check the monitor conditions.
Or reconduct monitor registration and execute monitor.
406A
H
Online
registration
error
A drive other than Nos. 1 to 3 has been
specified.
Check the specified drive and specify the correct drive.
4070
H
Circuit inquiry
Program before correction and the registration
program differ.
Check the registration program and make the programs
match.
4080
H
Data error Check the requested data contents.
4081
H
The sort subject cannot be detected. Check the data to be searched.
4082
H
The specified command is executing and
therefore cannot be executed.
Reexecute the command after the request from the
other equipment is completed.
4083
H
Other errors
Trying to execute a program that is not
registered in the parameter.
Register the program to be executed in the parameter.