ScaleLin

Function - Scaling - linear conversion.

Inputs

IN : REAL Real value
IMIN : REAL Minimum input value
IMAX : REAL Maximum input value
OMIN : REAL Minimum output value
OMAX : REAL Maximum output value

Outputs

OUT : REAL Result: OMIN + IN * (OMAX - OMIN) / (IMAX - IMIN)

Truth table

inputs	OUT
IMIN >= IMAX	= IN
IN < IMIN	= IMIN
IN > IMAX	= IMAX
other	= OMIN + IN * (OMAX - OMIN) / (IMAX - IMIN)

Remarks

In LD language, the operation is executed only if the input rung (EN) is TRUE. The output rung (ENO) keeps the same value as the input rung. In IL, the input must be loaded in the current result before calling the function.

ST Language

OUT := ScaleLin (IN, IMIN, IMAX, OMIN, OMAX);

FBD Language

LD Language

(* The function is executed only if EN is TRUE *)
(* ENO keeps the same value as EN *)

IL Language

Op1: LD       IN
     ScaleLin IMAX, IMIN, OMAX, OMIN
     ST       OUT