This period is always a multiple of 100 milliseconds (which means that the fastest period is
100ms). It is not guaranteed that the actions can be triggered exactly in the specified
period, a slight deviation is possible (based on CPU load and other circumstances at
runtime). A value has to be entered in this field for the periodic execution to work.
If a device is equipped with an internal sound card (speaker and/or line-out), an audio file
can be played back when certain events happen.