Siemens SIMATIC ET 200SP HA Manual - Halaman 20

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Siemens SIMATIC ET 200SP HA Manual
Parameters
4.3 Explanation of the module/channel parameters
Principle of pulse stretching
The figure below uses examples to show whether and how input pulses are changed.
Figure 4-1
Note
If you configure pulse stretching for an input channel, it also affects flutter monitoring enabled
for this channel. The "pulse-stretched" signal is the input signal for flutter monitoring. You
therefore need to adapt the parameter settings of pulse stretching and flutter monitoring to
each other. You can adapt the functions to your process by selecting the appropriate values
for the parameters.
20
Principle of pulse stretching
Digital Input Module DI 16xNAMUR HA (6DL1131-6TH00-0PH1)
Manual, 11/2017, A5E39293880-AB