Distributed I/O System ET 200S

Digital electronic modules
3.2 Parameters of the Digital Electronic Modules
3.2 3.2
Parameters of the Digital Electronic Modules
3.2.1 Hardware interrupt
3.2.2 Input delay
This parameter enables the hardware interrupts for the module.
This parameter can be used to suppress signal interference. Changes in the signal are only
detected if they remain stable for longer than the configured input delay time.
3.2.3 Trigger for hardware interrupt, rising edge
3.2.4 Pulse stretching
Definition
This parameter can be be used to enable a hardware interrupt with rising edge (a signal
status change) by channel.
The pulse stretching is a function used to modify a digital input signal. A pulse at a digital
input is stretched to at least the length set in the parameters. If the input pulse is already
longer than the selected length, it is not changed
ET 200S
3-4 Manual, 12/2005, A5E00514527-03