Events and methods
An event is a runtime message that indicates that a certain condition has occurred. Events can trigger methods that create application logic.
Method triggers
An object can trigger a method when:
-
An event occurs at runtime
-
C# NetLogic calls a method
-
A request from an OPC UA client occurs at runtime
-
A C# method calls at design time or at runtime
Tip: You can associate multiple methods with a single event. When the event occurs, the methods are executed in the order in which they are configured in the event.
Examples
| Event | Method |
|---|---|
| A button is clicked | A PDF report generates |
| A variable exceeds a set value | An alarm triggers |
| A request from an OPC UA client occurs | A database is queried |