﻿After central commands or after the bus/mains voltage returns, a KNX line is generally heavily loaded by telegrams because numerous bus devices transmit the state of their communication objects as status. This effect occurs particularly when using visualisations. Collective feedback of the gateway can be used to keep the telegram load low during initialisation.

The collective feedback summarises the switching states of the groups and single devices in bit-orientated form. Up to four separate 4-byte communication objects are available for this, depending on the set addressing type. Each of these objects can visualise the switching state of up to 16 groups or devices.
