Siemens Simantic ET 200S - Switching Hysteresis Parameter

4 IQ-SENSE (6ES7138-4GA00-0AB0)
5.2 Parameters for the 4 IQ-SENSE
ET 200S
5-6 Manual, Edition 10/2005, A5E00514527-01
5.2.5 Switching hysteresis parameter
Faults with the diffuse sensor or in the production process can result in signal wobbles. The
measured value then changes the switching threshold by 100 % (object detected - object not
detected). You can prevent this switching threshold wobble using the switching hysteresis
parameter. This will ensure a stable output signal on the sensor.
You can assigned parameters to 5 %/10 %/20 %/50 % for switching hysteresis.
Prerequisites
You can only set the switching hysteresis parameter for diffuse sensors with background
fadeout.
Operating principle
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Figure 5-2 Switching hysteresis parameter