Digital inputs

The current input level can be found in the process data in the input value "DIP Inputs Channel n" > "Input".

Digital inputs 1:

Each digital input has an input filter with adjustable filter time. The filter can be used to suppress interference, such as the bouncing of a switch signal. Pulses with a shorter pulse duration than the set filter time are suppressed.

Enable and disable filters

The filter is enabled on delivery: The parameter 0x80n0:02 "Enable filter" is TRUE.

You can disable the filter by setting the parameter 0x80n0:02 "Enable filter" to FALSE. In this case, the input signal is only filtered via the hardware. The filter value here is typically 10 µs.

Configuring the filter

You can set the filter time via the parameter 0x8n0:11 "Filter time". Available filter times:

Index 0x80n0:11 „Filter time“

Meaning

100dec: 100 µs

Signals < 100 µs are suppressed

500dec: 500 µs

Signals < 500 µs are suppressed

3000dec: 3 ms

Signals < 3 ms are suppressed (default)

10000dec: 10 ms

Signals < 10 ms are suppressed

20000dec: 20 ms

Signals < 20 ms are suppressed