Command Set Start of Feedback

Symbol: Command Set Start of Feedback 1:

Function: The command defines the selected element as the starting point within a feedback loop.

Call:

CFC > Execution order menu
Context menu in the CFC editor > Execution order

Requirements: A CFC editor is active and the Automatic data flow mode is enabled. A network of the CFC programming block maintains a feedback loop and an element within this feedback loop is selected.

In the CFC editor, the starting point within feedbacks is decorated with the symbol Command Set Start of Feedback 2: . This element has the lowest execution order number within the feedbacks. At runtime, the processing of the feedback starts with this element.

See also:

PLC documentation: Command Display Execution Order
PLC documentation: Continuous Function Chart (CFC)
PLC documentation: CFC Editor
PLC documentation: Automatic execution order by data flow
PLC documentation: CFC settings