Siemens SIMATIC ET 200SP Manual page 21

Parameters/address space
4.2 Explanation of parameters
Principle of pulse stretching
The figure below uses examples to show whether and how input pulses are changed.
T
1
Figure 4-1
Hardware interrupt, rising edge
Specifies whether a hardware interrupt is generated by a rising edge.
Hardware interrupt, falling edge
Specifies whether a hardware interrupt is generated by a falling edge.
20
Pulse stretching parameter
Principle of pulse stretching
Digital input module DI 8x24VDC HF (6ES7131-6BF00-0CA0)
Manual, 12/2017, A5E03576305-AE