TOF (FB)¶

FUNCTION_BLOCK TOF

Implements a timer with a turn-off delay

(* Example declaration *)
TOFInst : TOF ;

(* Example in ST *)
TOFInst(IN := VarBOOL1, PT:= T#5s);
VarBOOL2 := TOFInst.Q;

InOut:

Scope	Name	Type	Comment
Input	IN	BOOL	Falling edge: starts delay counter Rising edge: resets delay counter
	PT	TIME	Time for the delay counter [ms]
Output	Q	BOOL	TRUE if IN is TRUE FALSE if IN is FALSE and delay time PT elapsed
	ET	TIME	Elapsed time since falling edge at IN