3
SEQUENCE PROGRAM CONFIGURATION AND
EXECUTION CONDITIONS
(2) Program execution order of High Performance model QCPU, Process
Figure 3.2 Program execution order of High Performance model QCPU, Process CPU, Redundant CPU or
).
3
- 2
CPU, Redundant CPU or Universal model QCPU
The High Performance model QCPU, Process CPU, Redundant CPU or Universal
model QCPU executes a program in the following order (Figure 3.2).
Initial processing
I/O module refresh processing
Program operation processing
END processing
POINT
The High Performance model QCPU, Process CPU, Redundant CPU or Universal
model QCPU can store multiple programs.
Set the program execution order on the Program tab of PLC parameter in GX
Developer. (
Section 3.3.6)
Execution order can be changed.
Operation processing of program B
Operation processing of program C
Operation processing of program A
Universal model QCPU