Omron CJ - 08-2008 Operation Manual page 111

Function Tables
Purpose
File Memory Automatically transferring
the program, I/O Memory,
and PLC Setup from the
Memory Card when the
PLC is turned on.
• Easily replacing the pro-
gram onsite.
• Operating without a bat-
tery.
Creating a library of pro-
grams for different pro-
gram arrangements.
Creating a library of param-
eter settings for various
PLC Racks and models.
Creating a library of data
files with settings for vari-
ous PLC Racks and CPU
Bus Units.
Storing I/O Comment data
within the Memory Card.
Storing operating data
(trend and quality data)
within the CPU Unit during
program execution.
Replacing the program
without stopping operation.
Reading and writing I/O
memory data with a
spreadsheet.
Creating data that can be
read with a text editor.
Text string Performing string process-
processing ing at the PLC which was
performed at the host com-
puter previously and reduc-
ing the program load at the
host computer (operations
such as read, insert,
search, replace, and
exchange).
Performing string process-
ing operations such as
rearranging text strings.
Receiving data from exter-
nal devices (such as bar
code readers) through
serial communications,
storing the data in DM, and
reading just the required
string when it is needed.
Function
Enable the "automatic transfer at
start-up" function by turning ON pin 2
of the CPU Unit's DIP switch and cre-
ate an AUTOEXEC file.
Memory Card functions (Program
Files)
Memory Card functions (Parameter
Files)
Memory Card functions (Data Files)
Memory Card functions
(Symbol Table Files)
EM File Memory Functions and the
FREAD(700)/FWRIT(701) instructions
Memory Card functions (Program
Replacement during PLC Operation)
Read/write data files using instruc-
tions in CSV or text format.
Use the WRITE TEXT FILE instruction
(TWRIT(704)).
• Easily replacing the program onsite.
• Operating without a battery.
Combine the Host Link function with
the text string processing instructions.
Replacing the program without stop-
ping operation.
Use the string comparison instructions
and index registers.
Use the WRITE TEXT FILE instruction
(TWRIT(704)).
Combine the protocol macro function
with the text string processing instruc-
tions.
Section 1-8
Manual Reference
Programming SECTION 5
Manual File Memory
(W394) Functions
Instructions 3-26 File
Reference Memory
Manual Instructions
(W340)
Instructions 3-26 File
Reference Memory
Manual Instructions
(W340)
Instructions Text String
Reference Processing
Manual Instructions
(W340)
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