Sequence Controls
Sequence controls are divergences or convergences. These elements adjust automatically to the context of the Sequential Function Chart (SFC) diagram. The editor automatically inserts the type of sequence control required according to the elements at the insertion point. When adding a parallel element below a sequence control, the sequence control automatically branches out to the added element. When a sequence control is placed erroneously within a diagram, the editor displays it as red.
- Selection Divergences, a multiple link from a step to multiple transitions
- Selection Convergences, a multiple link from multiple transitions to a single step
- Simultaneous Divergences, a multiple link from a transition to multiple steps
- Simultaneous Convergences, a multiple link from multiple steps to a single transition
Divergences are multiple links from one SFC element (step or transition) to multiple SFC symbols. Convergences are multiple connections from more than one SFC symbol to one other symbol.
When inserting a sequence control, the type is determined logically according to the number of SFC elements of a same type (whether multiple) located initially above then below the control.
To insert a sequence control
- From theToolbox, drag the sequence control to the required location in the language container.
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