CTU (FB)¶

FUNCTION_BLOCK CTU

Increments a given value

(* Example declaration *)
CTUInst : CTU ;

(* Example in ST *)
CTUInst(CU:= VarBOOL1, RESET:=VarBOOL2 , PV:= VarWORD1);
VarBOOL3 := CTUInst.Q ;
VarWORD2 := CTUInst.CV;

InOut:

Scope	Name	Type	Comment
Input	CU	BOOL	Rising edge: Incrementing CV by one
	RESET	BOOL	TRUE: Reset CV to 0
	PV	WORD	Upper limit for incrementing
Output	Q	BOOL	TRUE if CV >= PV
	CV	WORD	Current counter value