This logic group cyclically expects a KNX telegram at the "Input". This telegram triggers this logic group again and again.
This allows cyclical telegrams to be monitored.

The telegrams at the input must be received within this interval so that it does not run out and restart.

The interval can be set by the user via the "Time interval" input.

If the input signal remains away or does not arrive within the interval, a telegram is sent at the output as a message.