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230
Response Codes Section 6-7
20: Read not possible 02 The data is protected. Execute the instruction again after issuing
the PROGRAM AREA PROTECT CLEAR
command to the PLC.
An attempt was made to download a
file that is being uploaded.
Check the file name and either interrupt ser-
vicing or wait for servicing to complete
before re-executing the command.
03 The registered table does not exist or is
incorrect.
Set or reset the registered table.
Too many files open. Close open files and re-execute the com-
mand.
04 The corresponding search data does
not exist.
---
05 A non-existing program no. has been
specified.
Check the program number and be sure
that it is set correctly.
06 A non-existing file has been specified. Check whether the correct file name was
used.
07 A verification error has occurred. Check whether the memory contents are
correct and replace if incorrect.
Check the contents of the file. A read error
may have occurred.
21: Write not possible 01 The specified area is read-only or is
write-protected.
If the specified area is read-only, the write
cannot be performed. If it is write-protected,
turn off the write-protect switch and execute
the instruction again.
02 The data is protected. Execute the instruction again after issuing
the PROGRAM AREA PROTECT CLEAR
command to the PLC.
An attempt was made to simulta-
neously download and upload a file.
Check the file name and either interrupt ser-
vicing or wait for servicing to complete
before re-executing the command.
The data link tables cannot be written
manual because the Unit is set for
automatic generation.
Change the data link mode to manual.
03 The number of files exceeds the maxi-
mum permissible.
Write the file(s) again after erasing
unneeded files, or use different disk or
Memory Card that has free space.
Too many files open. Close open files and re-execute the com-
mand.
05 A non-existing program no. has been
specified.
Check the program number and be sure
that it is set correctly.
06 A non-existent file has been specified. Check the file name and execute again.
07 The specified file already exists. Change the name of the file and execute
the instruction again.
08 Data cannot be changed. ---
Main code Sub-
code
Probable cause Remedy