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CHAPTER 2 APPLICATION OF PROGRAMMING
2
2.8 Executing Multiple Programs
(1) Program sequence in the CPU module
The following shows the program sequence after the CPU module is powered on or its operating status is
changed from STOP to RUN. Use an appropriate type of program as required.
Power-on or STOP RUN
Initial execution
type program
Fixed scan execution
type program
Scan execution
type program
Standby type
program
END processing
Executed once when
the CPU module is
powered on or switched
from STOP to RUN.
Executed at specified
intervals.
Program execution sequence
Program execution when
a subroutine program or
interrupt program is called
Executed upon request.
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