Linearization - WEST 8800 Operating Manual

Special functions

7.3 Linearization

Linearization for inputs INP1 or INP3
Access to table " Lin" is always with selection of sensor type S.TYP = 18:
special thermocouple in INP1 or INP3, or with selection of linearization S. L in
1: special linearization.
Dependent of input type, the input signals are specified in µV or in Ohm
dependent of input type.
With up to 16 segment points, non-linear signals can be simulated or linearized.
Every segment point comprises an input (In. 1 ... In. 1 6) and an output (Ou. 1
... Ou. 1 6). These segment points are interconnected automatically by means of
straight lines. The straight line between the first two segments is extended
downwards and the straight line between the two largest segments is extended
upwards. I.e. a defined output value is also provided for each input value.
When switching an In. x value to OFF, all other ones are switched off.
Condition for these configuration parameters is an ascending order.
In. 1 < In. 2 < ...< In. 1 6 and Ou. 1 < Ou. 2 ...< Ou. 1 6.
Linearization
In. 1 6
.
.
.
.
.
.
In 1
Ou. 1 ..................... Ou. 1 6
72 8800 process controller