Function - Enable or disable the production of events for binding (runtime to runtime variable exchange)
EN : BOOL TRUE to enable events / FALSE to disable events
ENO : BOOL Echo of EN input
Production is enabled when the application starts. The first production will be operated after the first cycle. So to disable events since the beginning, you must call EnableEvents (FALSE) in the very first cycle.
In LD language, the input rung (EN) enables the event production, and the output rung keeps the state of the input rung. In IL language, the input must be loaded before the function call.
ENO := EnableEvents (EN);
(* Events are enables if EN is TRUE *)
(* ENO has the same value as EN *)
Op1: LD EN