2-61
Section 2 Programming Languages
2-6-4 SFC programming precautions
(1) Step reset processing
The system does not reset the action program that is connected to a step when its state is switched from the active to inactive
state. If necessary, such action programs must be reset by the application.
<Example of resetting an action program>
In the above example, “OUT” remains on when the step active state switches from “S018” to “S019.” To turn off “OUT” on state
transition, create the following program in the action:
Add the S018 of step ag as an interlock.
(2) Programming a jump in an action/transition
When programming a jump in an action or transition, make sure that the jump destination falls within the program. A jump
specied in a program must not go out of the program.
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