Siemens ET 200S Manual page 501

Requirements
You can only set the switching hysteresis parameter for diffuse sensors with
background fadeout.
Operating Principle
Receiving level
Switching thres-
hold
100%
1
0
Figure 13-4
13.1.5 Time Functions and Time Value Parameters
Features
Using these parameters you can customize the electronic module to suit your
application.
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
Switching Hysteresis Parameter
4 IQ-SENSE
Switching hysteresis
5%/10/20%/50%
Time t
Switching output
on the sensor
Time t
13-7