7-3SectionUsing File Memory
143
The files described in the following table can be read or written by the CPU Unit.
File type File name Extension Contents Description
Data file ******** .IOM Specified ranges of
I/O Memory
• Contains word (16-bit) data from a starting
word through an end word in one memory
area.
• The following areas can be used: CIO, HR,
WR, AR, DM, and EM.
Program file ******** .OBJ Complete user
program
• Contains all the programs for cyclic tasks
and interrupt tasks, as well as task informa-
tion for one CPU Unit.
Parameter area file ******** .STD • PC Setup
• Registered I/O
tables
• Routing tables
• CS1 CPU Bus Unit
Setup and other
Setup data (See
Note 1.)
• Contains all of the parameter data for one
CPU Unit.
• There is no need for the user to distinguish
the various types of data contained in the
file.
• The file can be automatically read to or writ-
ten from the CPU Unit simply by specifying
the extension (.STD)
Files
trans-
ferred at
startup
Data files AUTOEXEC .IOM I/O Memory data for
the specified number
of words starting
from D20000
• There does not necessarily need to be a
data file in the Memory Card when the auto-
matic file transfer function is used at 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.
Program
files
AUTOEXEC .OBJ Complete user
program
• There must be a program file in the Memory
Card when the automatic file transfer func-
tion is used at startup.
• Contains all the programs for cyclic tasks
and interrupt tasks, as well as task informa-
tion for one CPU Unit.
Parameter
area file
AUTOEXEC .STD • PC Setup
• Registered I/O
tables
• Routing tables
• CS1 CPU Bus Unit
Setup and other
Setup data (See
Note 1.)
• There must be a parameter file in the
Memory Card when the automatic file trans-
fer function is used at startup.
• Contains all of the parameter data for one
CPU Unit.
• There is no need for the user to distinguish
the various types of data contained in the
file.
• All parameters in the file will be automatical-
ly transferred to specified locations in
memory at startup.
Note 1. Refer to information on file memory in the CS1-series CS1G/H-CPUjj-E
Programmable Controllers Operation Manual (W339).
2. All files transferred automatically at startup must have the name AUTOEX-
EC.
Initializing File Memory
Memory Initialization method
Memory
Cards
1. Insert the Memory Card into the CPU Unit.
2. Initialize the Memory Card from a Programming Device
(Programming Consoles included).
EM File
Memory
1. Specify in the PC Setup the first bank to convert to file memory.
2. Initialize EM File Memory from the CX-Programmer.
File Names Handled by
CPU Unit
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