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188
File Memory
Section 5-1
5-1-3
Files
Files are formatted in DOS, and therefore can be used as regular files on a
Windows computer.
Files are identified by file names and extensions, as shown in the following
table. A file name is written using the following characters: Letters A to Z,
numbers 0 to 9, !, &, $, #, `, {, }, –, ^, (, ), and _
The following characters cannot be used in file names: ,, ., /, ¥, ?, *, “, :, :, <, >,
=, +, space
The filename extensions depend upon the type of file being stored. Data files
can have extensions IOM, TXT, CSV, or IOR. (TXT, CSV, and IOR extensions:
Not supported by CS-series CS1 CPU Units that are pre-EV1.) Program files
have the extension OBJ and parameter files have the extension STD. The
location of a file in memory can be specified in the directory, and a directory
can be up to 5 subdirectories deep (counting the root directory).
File Types, Names, and Extensions
There are 3 types of files that can be managed (read and written) by the CPU
Unit.
• General-purpose Files
These files can be accessed (read or written) with Programming Devices,
FINS commands, instructions, or Auxiliary Area control bit operations.
The file names can be defined freely by the user.
• Automatic Transfer at Startup Files
These files are automatically transferred from the Memory Card to the
CPU Unit when the power is turned ON. The file names are fixed as
AUTOEXEC or ATEXEC
@@
.
• Backup Files (Not supported by CS-series CS1 CPU Units that are pre-
EV1)
These files are transferred between the Memory Card and CPU Unit by
the backup function. The filenames are fixed as BACKUP
@@
.
General-purpose Files
The following table shows file names and extensions of general-purpose files.
Note
1.
File names, represented by “********” above, consist of up to 8 ASCII char-
acters.
2.
The TXT and CSV file formats: Not supported by CS-series CS1 CPU
Units that are pre-EV1.
3.
One example of the CPU Bus Unit settings would be the Data Link Tables.
Refer to the operation manuals for specific Units for other setup data.
Type
Name
1
Extension
Description
Explanation
Data File
********
.IOM
Specified range in
I/O memory
• Data from start to end word in
word units (16 bits) located in
one area.
• The area can be the CIO, HR,
WR, AR, DM, or EM Area.
Binary format
.TXT
TXT format
2
(non-delimited or
tab-delimited)
.CSV
CSV format
2
(comma-delimited)
Program File
********
.OBJ
Entire user pro-
gram
• All cyclic and interrupt tasks as well as task data for
one CPU Unit.
Parameter
Area File
********
.STD
PLC Setup, regis-
tered I/O table,
routing tables,
CPU Bus Unit
settings
3
, etc.
• Includes all initial settings for one CPU Unit.
• The user does not have to distinguish parameter data
in the file by type.
Summary of Contents for CJ1G-CPU series
Page 3: ...iv...
Page 5: ...vi...
Page 21: ...xxii Conformance to EC Directives 6...
Page 169: ...148 Task Control Instructions Section 3 32...
Page 203: ...182 Programming Device Operations for Tasks Section 4 4...
Page 253: ...232 Using File Memory Section 5 3...
Page 337: ...316 Other Functions Section 6 11...
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Page 369: ......
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Page 381: ...360 Revision History...