Mitsubishi Electric melsec q00ujcpu User Manual page 138

(4) Operation for stopping boot operation
To stop boot operation and operate the CPU module by the parameters and program files written to the program
memory, perform the following operations.
1) Remove the memory card and write parameters without boot file setting to the program memory by
GX Developer.
2) Power on the programmable controller again or reset the CPU module.
(5) Precautions for executing the program in the memory card
(a) Storage location of parameters
• Store the parameters (PLC parameter) in which the boot file setting was made to the memory card.
The CPU module ignores the boot file setting if the parameters with the setting are stored in the program
memory or standard ROM.
A boot operation does not start even after the CPU module is powered off and then on or is reset.
( Section 5.1.10)
• When both of the following status 1) and 2) occurs, the CPU module is not operated by the parameters in
the memory card, but by the parameters in the program memory.
1) There are parameters in the program memory.
2) The parameters in the memory card are not set in the Boot file tab.
(b) Online change in boot operation
1) Memory card (RAM)
When data are written to a program in the program memory in the RUN status (
change can be updated to the program in the boot source memory card (RAM).
2) Memory card (ROM)
Even if data are written to a program in the program memory in the RUN status, the change is not updated to
the program in the boot source memory card (ROM).
Therefore, write the same file whose program was written to the program memory to the memory card (ROM)
by Write to PLC (Flash ROM). (
(c) Maximum number of settable boot files
Set the maximum number of settable boot files in the Boot file tab of the PLC parameter dialog box so that it
may be the same with the number of files storable to the program memory.
However, the number of boot files reduces by 1 when:
• a heading is set, or
• the PLC parameters (where the boot file setting was made) stored in the memory card is booted.
CHAPTER5 MEMORIES AND FILES USED FOR CPU MODULE
Section 5.1.7)
Section 6.12), the
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