Mitsubishi Q00JCPU User Manual page 283

5
MEMORIES AND FILES USED IN CPU MODULE
(2) Universal model QCPU
The system automatically determines and specifies the parameter-valid drive.
Users cannot specify the parameter-valid drive.
(a) Parameter-valid drive specification method
Power supply OFF
/Reset clear
Do the boot file
settings exist in the
memory card?
The boot file setting is
configured
Boot the specified transfer
destination with following the
boot file setting of the
parameter in thememory
card. (If a transfer destination
is the program memory, it is
also transferred into the
backup memory.)
Do the
parameters exist
in the program
memory?
Yes (Parameter exists in
the program memory)
Start executing programs in
the parameter of the program
memory
END
Figure 5.41 Operation flowchart to specify a parameter storage drive
5.2 High Performance Model QCPU, Process CPU, Redundant CPU, Universal Model QCPU
The valid parameters are decided by the order of priority set to the drives where
parameters are stored.
Table5.12 shows the priority order of the drives.
Write the parameters need to be valid to the drive.
Table5.12 Priority order of the drives
Priority
High 1
2
3
4
Low
The following describes the operation flowchart for the CPU module to specify a
parameter storage drive.
ON
No boot file setting
No (No parameter in the program memory)
Do parameters
exist in the
memory card?
Yes (Parameter exists
in the memory card)
Start executing programs in
the parameter of the memory
card.
5.2.11 Specifying valid parameters (Parameter-valid drive setting)
Parameter-valid drive
Drive 0 (Program memory)
Drive 1 (Memory card RAM)
Drive 2 (Memory card ROM)
Drive 3 (Standard ROM)
<Operate with following the concepts of the parameter-valid drive>
No (No parameter in the memory card)
Do the parameters
No (No parameter)
exist in the standard
ROM?
Yes (Parameter exists
in the standard ROM)
Start executing programs in
the parameter of the standard
ROM.
Error since parameter does
not exist.
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