﻿At this point, you can define when the gateway updates the feedback value for the colour temperature status. The object value updated last by the gateway is then actively signalled to the KNX, provided the "Transmit" flag is set on the communication object.

*after each update of feedback value*: The gateway updates the feedback value in the object as soon as a new telegram is received to specify a colour temperature value or a value is specified by an internal function of the gateway (e. g. scene function, HCL matrices). The default colour temperature value does not necessarily have to change. Consequently, in the event of, for example, cyclical telegrams to the input objects, the corresponding colour temperature status telegrams are also generated.

*only if the feedback value changes*: The gateway updates the colour temperature status only when the telegram value also changes. If the telegram value does not change (e.g. in the case of cyclical telegrams to the input objects with the same telegram value), the status then remains unchanged. Consequently, no telegram with the same content is output repeatedly either. This setting is recommended, for instance, if the objects "Absolute colour temperature - Setting" and "Colour temperature -Status" are linked to an identical group address. This is often the case when activating by means of light scene push-button sensors (recall and storage function).
