Omron CS CJ1W-ETN21 Operation Manual page 105

Using File Memory
File Names Handled by CPU Unit
File type
Data file ********
Program file ********
Parameter area file ********
Files Data files AUTOEXEC .IOM
trans-
ferred at
startup
Program AUTOEXEC .OBJ
files
Parameter AUTOEXEC .STD
area file
The files described in the following table can be read or written by the CPU
Unit.
File name Extension
.IOM
.OBJ
.STD
Note 1. Refer to information on file memory in the CS/CJ-series Programmable
Controllers Operation Manual (W339).
2. All files transferred automatically at startup must have the name
AUTOEXEC.
Contents
Specified ranges of I/ • Contains word (16-bit) data from a starting
O Memory word through an end word in one memory
area.
• The following areas can be used: CIO, HR,
WR, AR, DM, and EM.
Complete user pro- • Contains all the programs for cyclic tasks
gram and interrupt tasks, as well as task infor-
mation for one CPU Unit.
• PLC Setup • Contains all of the parameter data for one
CPU Unit.
• Registered I/O
tables • There is no need for the user to distinguish
the various types of data contained in the
• Routing tables
file.
• CPU Bus Unit
• The file can be automatically read to or
Setup and other
written from the CPU Unit simply by speci-
setup data
fying the extension (.STD)
I/O Memory data for • There does not necessarily need to be a
the specified number data file in the Memory Card when the
of words starting from automatic file transfer function is used at
D20000 startup.
• The AUTOEXEC.IOM file always contains
DM Area data starting at D20000.
• All data in the file will be transferred to
memory starting at D20000 at startup.
Complete user pro- • There must be a program file in the Mem-
gram ory Card when the automatic file transfer
function is used at startup.
• Contains all the programs for cyclic tasks
and interrupt tasks, as well as task infor-
mation for one CPU Unit.
• PLC Setup • There must be a parameter file in the
Memory Card when the automatic file
• Registered I/O
transfer function is used at startup.
tables
• Contains all of the parameter data for one
• Routing tables
CPU Unit.
• CPU Bus Unit
• There is no need for the user to distinguish
Setup and other
the various types of data contained in the
setup data
file.
• All parameters in the file will be automati-
cally transferred to specified locations in
memory at startup.
Section 4-7
Description
81