Mitsubishi MELFA CR1D Instruction Manual page 397

(3) Switching to the ROM operation
Use the following procedure (steps [1] to [3]) to switch to the ROM operation.
[1] Prepare to copy the information in the RAM area into the ROM area.
The programs created before the RAM operation was switched
to the ROM operation are saved in the RAM area of the file sys-
tem of the controller. First, copy these programs into the ROM
area using the following procedure.
After the programs in the ROM area are cleared once, they are
copied from the RAM area.
<MENU>
1.FILE/EDIT 2.RUN
3.PARAM. 4.ORIGIN/BRK
5.SET/INIT.
123
<PARAMETER> NAME(BACKUP
ELE( )
DATA
(
Prev
DATA
123
<PARAMETER> (BACKUP
(SRAM->FLROM
123
Power shutoff
Return to RAM operation
CLOSE
)
)
Next
CLOSE
) ( )
)
CLOSE
1) Display the parameter setting screen from the
maintenance screen.
2) Enter "BACKUP" in the parameter name field, and
press the [EXE] key.
3) When "SRAM->FLROM" is displayed in the data
field, press the [EXE] key again as is.
* Do not change the content of the data field.
A self-check is performed to check whether or not
the programs are normal prior to writing them into
the ROM area. The ALWAYS program is
automatically stopped during the self-check. When
the program check is complete, the cursor moves to
the parameter name field. If any abnormality is
found during the program check, an error is output
and the date of ROM write operation is registered in
an error log.
[Cancel Operation]
When the function key corresponding to the
"CLOSE" is pressed then data is not changed.
4) Be sure to shut off the power here. Also, be sure to
shut off the power during [Cancel Operation] in step
3) above. Copy to the ROM area is performed the
next time the power is turned on. If the power is not
shut off after the operation in step 3), data will not be
properly copied into the ROM area.
5) Turn on the power to the controller.
After the power is turned on, "OK" is displayed in
"STATUS NUMBER" on the operation panel. After
verifying that "OK" is displayed, press the [START]
button on the operation panel. (The following page
describes the detail of this operation.)
About ROM operation/high-speed RAM operation function 5-384
5Functions set with parameters
File system of the controller
ROM area
Program s
[1]
Param eters
Com m on
Copy
variables
Error logs
RAM area
Program s
Param eters
Com m on
variables
Error logs