Pulse Stretching - Siemens SIMATIC ET 200SP HA Equipment Manual

Parameters
6.4 Explanation of the module/channel parameters
Description
Change-over contacts (NAMUR change-over contacts, unconnected change-over contacts,
change-over contacts with 10 kΩ) can only be configured for channels with an even-numbered
channel number (normally open channel: 0, 2, 4, ...). The following channel (NC channel: 1, 3,
5, ...) is then marked as disabled.
6.4.11

Pulse stretching

Definition
Pulse stretching is a function for changing a digital input signal. A pulse on a digital input is
extended to at least the configured length. If the input pulse is already longer than the
configured length, the pulse is not changed.
If hardware interrupts are supported, the pulse-stretched signal is the signal that triggers a
hardware interrupt.
24
Equipment Manual, 08/2019, A5E39293880-AD
DI 16xNAMUR HA