TON (FB)¶

FUNCTION_BLOCK TON

Implements a timer with a turn-on delay

(* Example declaration *)
TONInst : TON ;

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

InOut:

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