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KNX BASIC COURSE

Figure 24: Setting the group speaker: ACK (PL) = Yes

c) Group speaker: Only relevant for Powerline. In Powerline systems, only one
device must be available for each group address to send an acknowledgement
(Acknowledge) when receiving a group telegram with this address. A group
speaker property must be assigned to a Powerline device, i.e. in the object which
is linked to the corresponding group address. Please note: Just as the sending
address in the case of a “Transmit” flag is an object property assigned to this
specific group address, the same applies to the group speaker flag: you first select
the device (in Topology view or in another view), expand the objects in the tree
structure and select the object with the corresponding group address, so that it
appears in the right window pane. The option “Yes” can then be set in the ACK
(PL) column (see figure above).

7.4 Creating large numbers of group addresses

7.4.1 Directly in ETS:
As in the topology, the “Object generator” can also be used for the address structuring.
You can use 2 strategies:
1. Complete each main/middle/subgroup individually with addresses.
2. Copy an existing structure from a main group into another.

Example for strategy 1: Creation of new floor-related main groups

Figure 25: Creation of main groups (1)

Home and Building Management Systems KNX Association
KNX Project Design with ETS: Advanced ETS4_Planning complex_E0411c 22/59