Knowledge base Automation Systems Programmable Logic Controllers (PLC /C Series)

Transfer Compact Flash memory card

Modified on Sun, 11 May, 2025 at 10:44 PM

Introduction

This tutorial is designed to explain the transfer process of compact flash memory cards for CS1/CJ1 PLCs.

Saving configuration files / program on the CF memory card

There are several ways to create / save the configuration of an machine, either with or without using a PLC.

Method 1: "Backup" of machine using CJ1 / CS1:

Insert the CF card
Switch the switch 7 to ON
Press MCPWR for 3 seconds
When the transfer finishes, LEDs Busy and MCPWR turn off
Switch the switch 7 to OFF

Method 2: With a different PLC and using CX-Programmer:

From the CX-Programmer I/O editor table, add the cards corresponding I/O to the desired configuration and then move the table in the PLC. The transfer is possible in only two cases: - The actual configuration of PLC I / O is identical to one created. - The PLC is equipped with no map I / O and has no table I / O recorded.
Insert a CF memory card
Run a backup as described above

Method 3: Using CX-Simulator instead of a PLC:

Run CX-Simulator
Open the memory card manager
Make a copy-and-paste of the data files involved with the renaming as described in the table below.
Then copy the files from the virtual memory of the PLC to a CF card:

Method 4: With CX-Programmer only (without PLC):

Insert a CF card into the appropriate drive of the PC
Run CX-Programmer
Right click on the PLC, select from the context menu ... Forward. To file.
Copy / paste the generated files into the CF memory card.

Warning: This operation does not achieve all of the data (program and comments only). Automatic loading CF -> PLC requires several files (see next section "Automatic Transfer")

Automatic transfer from CF card to the CJ1 / CS1 PLC

There are 3 loading procedures:

RESTORE: To restore on power up all data previously saved by a backup
AUTOEXEC: Used to load at power and selectively programs / parameters and partial memories
REPLACE: Restore the Program alone on power up. Note: This function requires a CPU V2 or higher

Table 1: Types of files used
	AUTOEXEC	RESTORE	REPLACE	Description
Program	AUTOEXEC.OBJ	BACKUP.OBJ	REPLACE.OBJ	User program
Data	AUTOEXEC.IOM	BACKUP.IOM		DM special cards (D20000-D32767)
	ATEXECDM.IOM	BACKUPDM.IOM		DM users (D0-D19999)
	ATEXECE*.IOM	*BACKUPE.IOM**		EM memory bank (0 to C from the CPU)
		BACKUPIO.IOR		CIO, WR, HR, AR, T / C val. Current
Parameters	AUTOEXEC.STD	BACKUP.STD		PLC Configuration, table I / O, routing tables, table data-link
Special		BACKUP**.PRM		Data / maps specific program (Protocol macro, etc.).

Key: The files in bold type are essential for the proper conduct of the proceedings. Non-bold filenames are optional.

Procedure for AUTOEXEC:

Rename files necessary AUTOEXEC (retaining the extension) *
Turn off the PLC
Switch the switch 2 to ON
Power on the PLC
When the transfer is complete the LED Busy turns off
Switch the switch 2 to OFF

Procedure for RESTORE:

Turn off the PLC
Insert the CF card in the PLC
Switch the switch 7 to ON
Turn on the PLC power
When the transfer is complete, the BKUP LED turns off
Switch the switch 7 OFF

Note: If SW2 and SW7 is ON at power, the RESTORE procedure takes precedence over the procedure AUTOEXEC

Procedure for REPLACE:

Rename the file necessary REPLACE.OBJ
Turn off the PLC
Switch ON switch 2
Turn on PLC the power
When the transfer is complete the LED Busy turns off
Switch OFF switch 2

Program hot transfer (from CPU-V3)

Rename the program file (eg ABC.OBJ)
Authorize this transfer by placing the word A5A5 in A651
Specify the file name in the words A654 to A657 (ex: 4142 4320 2020 2020)
Force the bit A650.15 ON to execute the transfer

Note: At the end of the transfer words A650-657 and the bit A650.15 are re-initialized