3
SEQUENCE PROGRAM CONFIGURATION AND
EXECUTION CONDITIONS
CHAPTER3 SEQUENCE PROGRAM CONFIGURATION
As programs that can be executed by the CPU module, there are a sequence program,
SFC program and ST program.
This manual does not explain the SFC program and ST program.
Refer to the following manuals for the SFC program and ST program.
(1) Program execution order of Basic model QCPU
3
- 1
AND EXECUTION CONDITIONS
QCPU (Q Mode)/QnACPU Programming Manual (SFC)
QCPU (Q Mode) Programming Manual (Structured Text)
The Basic model QCPU executes a program in the following order (Diagram 3.1).
Diagram 3.1 Program execution order of Basic model QCPU
Initial processing
I/O module refresh processing
Program operation processing
END processing