Siemens ET 200S - Page 501

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