====== F_TRIG ======

{{:en:mervis-ide:35-help:f_trig.png}}

===== Block name =====

F_TRIG

===== ST call =====

<code st-iec>
PROGRAM F_TRIG_DEMO
     VAR
     BOOL1,BOOL2: BOOL;
  FB:F_TRIG;
 END_VAR
    FB(CLK:=BOOL1,Q=>BOOL2);
END_PROGRAM
</code>

===== Description =====

The block detects a falling edge and generates a pulse on the output with duration of one cycle.\\


===== Inputs =====

|Input|Type    |Description                   |Default value|
|CLK  |ANY_BOOL|Input reacting on falling edge|False        |

===== Outputs =====

|Output|Type|Description  |
|Q     |BOOL|Output signal|

===== Application example =====

{{:en:mervis-ide:35-help:f_trig_example.png}}