158
Command Lists Section 5-1
20: Read not
possible
02: Protected --- The program area is pro-
tected.
Release protection from a Program-
ming Device and then execute the
command.
03: Table miss-
ing
Table A table has not been regis-
tered.
Register a table.
There is an error in the table. Correct the table.
04: Data
missing
--- The search data does not
exist.
---
05: Program
missing
Program num-
ber in command
data
A non-existing program
number has been specified.
Check the program numbers and
specify a valid one.
06: File missing File name and
file device
The file does not exist at the
specified file device.
Check the path and file name, and
correct them.
07: Data
mismatch
Contents of
memory being
compared
A data being compared is not
the same.
Check memory contents and use
the correct data.
--- A file read operation failed. Check the contents of the file.
21: Write not
possible
01: Read-only --- The specified area is
read-only.
If the area is protected using a
switch setting, release protection
and then execute the command. If
the area is permanently read-only,
the command cannot be executed.
02: Protected
Cannot write
data link table
--- The program area is
protected.
Release protection from a
Programming Device and then
execute the command.
PLC Setup Writing is not possible
because automatic data link
table generation has been
specified.
Change the PLC Setup so that the
data link tables can be manually
written.
03: Cannot
register
Number of files
in file device
The file cannot be created
because the limit has been
exceeded.
Delete any unnecessary files or
create more file memory.
Number of files
open
The maximum number of
files has already been
opened for the system limit.
Close one or more files and then
execute the command.
05: Program
missing
Program
number in
command data
A non-existing program
number has been specified.
Check the program numbers and
specify a valid one.
06: File missing File name The file does not exist at the
specified file device.
Correct the file name and then
execute the command.
07: File name
already exists
File name A file with the same name
already exists in the specified
file device.
Change the name of the file being
written and then execute the
command.
08: Cannot
change
Contents of
memory being
chan
ged
The change cannot be made
because doing so would
create a problem.
---
Main code Sub-code Check point Probable cause Correction
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