F_TRIG (FB)¶

FUNCTION_BLOCK F_TRIG

Detects a falling edge of a boolean signal

(* Example declaration *)
FTRIGInst : F_TRIG ;

(* Example in ST *)
FTRIGInst(CLK := VarBOOL1);
VarBOOL2 := FTRIGInst.Q;

InOut:

Scope	Name	Type	Comment
Input	CLK	BOOL	Boolean signal to be checked
Output	Q	BOOL	TRUE: Falling edge detected