Documentation

PROGRAM TEST B83
	VAR
 	FB : LIB.CORE.V1_0.B83_LINEARINTERPOLATION;
	END_VAR
	FB(IN:=REAL1, XVALUES:=POLE,YVALUES:=POLE2,ENABLEVALUES:=POLE3,RECALCULATESLOPES:=BOOL1,
		ENABLEMIN:=TRUE,ENABLEMAX:=TRUE,XMIN:=0,XMAX:=50,OUT=>REAL2);
END_PROGRAM

Library

LIB\CORE

Version

V1.0

Description

The block converts the input signal to the output using interpolation curve consisting of 10 segments.

Inputs

Input	Type	Description	Default value
IN	REAL	Input signal	0
XVALUES	ARRAY[1..10] OF REAL	Array of X coordinates 1-10	[0,0,...,0]
YVALUES	ARRAY[1..10] OF REAL	Array of Y coordinates 1-10	[0,0,...,0]
ENABLEVALUES	ARRAY[1..10] OF BOOL	Array of enable values	[False,...,False]
ENABLEMIN	BOOL	Enable of low alarm	False
ENABLEMAX	BOOL	Enable of high alarm	False
XMIN	REAL	Low alarm limit	0
XMAX	REAL	High alarm limit	0
RECALCULATESLOPES	BOOL	Rising edge recalculates the block with new XValues/YValues/EnableValues.	False

Outputs

Output	Type	Description
OUT	REAL	Output value
MINALARM	BOOL	Low alarm
MAXALARM	BOOL	High alarm

Function

The block calculates a transfer function defined by up to 10 points [X1,Y1] ... [X10,Y10], which are linked by lines. The Enable values activate the corresponding (X, Y) point.

Documentation

Linear Interpolation (B83)

Block name

ST call