﻿At this point, you can define when the gateway is to update the status of the collective feedback. The object value most recently updated by the gateway is then actively reported to the KNX, provided the "Transmit" flag is set on the communication objects.

*with each update of the "Switching"/"Central switching" object*: The gateway updates the feedback values in the collective feedback as soon as the input objects "Switching - Default" or "Central Function... - Switching" for groups or single devices are updated. A new telegram is also then actively transmitted to the KNX each time. The telegram value does not necessarily have to change. Hence, corresponding collective feedbacks are also generated, e.g. in the event of cyclical telegrams to the input objects.

*Only if the feedback value changes*: The gateway updates the feedback values in the collective feedback objects only if the telegram values of the inputs also change. The feedback remains unchanged if telegram values do not change (e. g. in the event of cyclical telegrams to the input objects with the same telegram value). Consequently, no telegram with the same content is then issued repeatedly.
