West Control Solutions KS98-1 - Manual (Page 96)

III-2 Non-linear functions
III-2.1 LINEAR (linearization function (No. 07))
Block LINEAR can be used for calculation of y = f (x).
Max. 11 adjustable segment points for simulation or linearization of non-linear functions are available. Each segment
point comprises input x(1) and output y(1).
The segment points are connected automatically by straight lines. Each input value x1 has a defined output value y1.
With an input value x1 smaller than parameter x(1), the output value is equal to the y(1) value. If input value x1 ex -
ceeds the highest parameter x(n) value, the output value is equal to the relevant y(n) value.
The condition for input of configuration parameters is that values are input in ascendant order (x(1) < x(2) <...< x(11)).
The end of value pairs is marked by the “OFF” value in the next input value x(n+1).
This function block is cascadable. It has 2 inputs: The 1st input provides the variable which must be linearized. The
2nd input (case) is used to connect the previous linear block.
Inputs/outputs
Analog inputs
X Input variable which must be linearized
Casc Cascade input
Analog outputs
Y Linearization result
Parameter
Parameter Description Range Default
x(1) ...
x(11) Input value for segment point 1...11 -29999...999999, OFF
x(1) x(1) = 0, x(2) = 1, x(3) = 2, ...,
x(11) = 10
y(1) ...
y(11) Output value for segment point 1...11 -29999 ... 999 999 y(1) = 0, y(2) = 1, y(3) = 2, ...,
y(11) = 10
Non-linear functions 9499-040-82711
III-96 LINEAR (linearization function (No. 07))
LINEAR
Y 1
X 1
Casc
100 ts=11
X1
Y1
y
x
1
2
3
4
5
6 7
8 9 10
y1
y2
y11
x1 x2 x11
...
...
Casc