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CHAPTER2 SEQUENCE PROGRAMS
2
3
2.3 Settings When Progr
am is Divided
2.3.5 F
ixed scan execution type pr
ogram
(d) When the execution condition is established during END processing
When the execution condition is established during the waiting time of the constant scan execution or the END
instruction, a fixed scan execution type program is executed.
(3) Processing at program execution type change
For how to save and restore data in the index register when the program execution type is changed, refer to
Section 2.2.3(4). (The method is the same as that for interrupt programs.)
Figure 2.40 When the execution condition is established during the waiting time
Fixed scan interval
END processing
Scan execution
type program
Fixed scan execution
type program
*1: Waiting time
*2: If processing is not completed within the
waiting time, the scan time increases.
Condition
established
Constant scan
*2
*1
