File Memory Operations; Types Of File Memory Operations - Omron CJ2 - 02-2010 User Manual

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File Memory Operations

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Types of File Memory Operations

The following can be performed to use file memory:
• Procedures from the CX-Programmer
• Automatic transfer at startup
• Simple backup function
• FREAD(700) and FWRIT(701) instructions
• Replacement of the entire program using Auxiliary Area control bits
• FINS commands
Procedures from the CX-Programmer
Refer to the CX-Programmer operation manual for details on the following procedures.
Transferring Data in the Memory Card Dialog Box of the CX-Programmer
The following files can be created, read, and written.
• Files automatically transferred at startup (program/network symbol files, data files, parameter
files)
• General-purpose files (program/network symbol files, data files, parameter files)
• CX-Programmer files (symbol tables, comment files, program index files)
Transferring Data Online/Offline
General-purpose files (i.e., program/network symbol files, data files, and parameter files) can be
transferred online to the PLC or offline to a computer memory device.
Files Transferred Automatically at Startup
Changeover programs, parameters, and I/O memory can be stored in a Memory Card and read from
the Memory Card at startup. (Refer to Section 10 CPU Unit Functions for details.)
AUTOEXEC
.OBJ
Simple Backup Operation
The simple backup operation enables backing up and restoring all PLC data, including data in the CPU
Unit, Special I/O Units, and CPU Bus Units, to and from a Memory Card without requiring a Program-
ming Device. (Refer to the CJ2 CPU Unit Hardware User's Manual (Cat. No. W472) for details.)
CJ2 CPU Unit Software User's Manual
AUTOEXEC AUTOEXEC
.OBJ .OBJ
7 File Operations
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