Omron SYSMAC CS Series Operation Manual page 138

Description of Operation
Procedure
Backing up function block
data files to a Memory
Card
Note
106
Note If this operation is performed after downloading specific function
blocks or ITEMs or downloading only the user link table or a se-
quence table online (all of these are possible while the Loop Con-
troller is operating) when the easy backup function is being used to
backup RAM function block data in a Memory Card in the CPU Unit,
always perform the following operation before performing the easy
backup operation to backup the data in RAM to flash memory. If the
following operation is not performed, the contents of the Memory
Card will differ from the contents of flash memory.
• Select Execute - Backup from the CX-Process Tool menus to
backup RAM data to the flash memory.
• Alternately, select the LCB backup indication after download Op-
tion from the CX-Process Tool and download the entire Loop Con-
troller (LCU/LCB).
Set the DIP switch on the front of the CPU as shown in the following table,
then press and hold the Memory Card power supply switch for 3 s.
DIP switch on front of CPU unit
Pin 7 Pin 8
ON OFF
Memory Card power supply switch
Loop Controller
Function block
data in RAM
Backup
This creates a function block data file and writes that file along with other
backup files to the Memory Card. When the Memory Card power supply
switch is pressed, the MCPWR indicator on the front of the CPU Unit flashes
once and remains lit while data is being written. The indicator goes out after
data has been written normally to the Memory Card.
(1) When password protection is set for the Loop Controller using the CX-
Process Tool, the RDY indicator on the front of the Loop Controller will
flash if the Memory Card power supply switch is pressed to perform sim-
ple backup. Perform simple backup after clearing the password set for the
Loop Controller using the CX-Process Tool. If the easy backup operation
is performed to backup data in a Memory Card for function block data in
a Loop Controller for which a password is set, an empty backup file will
be created on the Memory Card.
(2) Online operations may not be possible from the CX-Process Tool during
simple backup. If they are attempted, a communications timeout error or
an error response code of 3001 may occur.
(3) Recovery will start if a Memory Card is inserted and the power supply is
turned ON with pin 7 on the DIP switch turned ON. Be sure to turn OFF
pin 7 after the operation has been completed.
CPU Unit
All data
Memory Card
Section 3-2