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Scilabヘルプ >> Xcos > palettes > Event handling palette > EDGE_TRIGGER


generate an event when the input signal sign changes

Block Screenshot


This block generates an event on rising, falling or both edges of the input signal (depending on block parameter). A rising edge is a change in value from strictly negative to positive or zero, or a change in value from zero to strictly positive. A falling edge is the opposite.

Note that this block only generates an event if the input jumps due to an event. The generated event is synchronous with the event causing the jump. This block does not detect continuous-time zero-crossings.


  • Rising (1), falling (-1), both (0)

    Properties : Type 'vec' of size 1.

Default properties

  • always active: no

  • direct-feedthrough: no

  • zero-crossing: no

  • mode: no

  • regular inputs:

    - port 1 : size [-1,1] / type 1

  • number/sizes of activation inputs: 0

  • number/sizes of activation outputs: 1

  • continuous-time state: no

  • discrete-time state: no

  • object discrete-time state: no

  • name of computational function: csuper

Interfacing function

  • SCI/modules/scicos_blocks/macros/Misc/EDGE_TRIGGER.sci


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Last updated:
Tue Feb 25 08:53:25 CET 2020