EnableEvents

 Function A function calculates a result according to the current value of its inputs. A function has no internal data and is not linked to declared instances. - Enable or disable the production of events for binding (runtime In computer science, runtime (or run-time) describes the operation of a computer program, the duration of its execution, from beginning to termination (compare compile time). Within KAS, runtime also refers to the virtual machine that manage the program written in a computer language while it is running to runtime variable exchange).

Inputs

Input	Data Type	Range	Unit	Default	Description
EN	BOOL				TRUE to enable events. FALSE to disable events.

Outputs

Output	Data Type	Range	Unit	Description
ENO	BOOL			Echo of EN input.

Remarks

• Production is enabled when the application starts.
• The first production is operated after the first cycle.
• To disable events since the beginning, you must call EnableEvents (FALSE) in the very first cycle.

FBD Language Example

FFLD Language Example

• The input rung (EN) enables the event production.
  • The output rung keeps the state of the input rung.
  • Events are enables if EN is TRUE.
  • ENO has the same value as EN.

IL Language Example

• In the IL "Instruction List" This is a low-level language and resembles assembly Language, the first input must be loaded before the function call.

Op1: LD "Ladder diagram"
Ladder logic is a method of drawing electrical logic schematics. It is now a very popular graphical language for programming Programmable Logic Controllers (PLCs). It was originally invented to describe logic made from relays. The name is based on the observation that programs in this language resemble ladders, with two vertical "rails" and a series of horizontal "rungs" between them  EN
     EnableEvents
     ST  ENO

ST Language Example

ENO := EnableEvents (EN);

See Also

Alarm_A