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2.8.1 Initial execution type program
Initial execution type program is executed only once when the CPU module is powered on or its operating status is
changed from STOP to RUN.
This type of program can be used as a program that need not be executed from the next scan and later once it is
executed, like initial processing to an intelligent function module.
(1) Processing
After completion of all the initial execution type program execution, END processing is performed. In the next
scan and later, scan execution type programs are executed.
Creating an initial execution type program
Program A
Program B
Control by one program
Processing
performed once
Processing performed
in every scan
Initial execution
type program
Scan execution
type program
One program is divided into
an initial execution type program
and scan execution type program.
Power-on or STOP RUN
Initial execution
type program A
Initial execution
type program B
Initial execution
type program n
END processing
Scan execution
type program
1 scan
If there are multiple initial execution
type programs, the CPU module
executes them starting from the one
that was set first.
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