KNX Single-family House Examples for Physical Addresses (PAs) and Group Addresses (GAs)

Some of you have equipped your single-family house with KNX. I am also currently in the process of setting up our house in ETS.

There are some examples and suggestions to be found, but few concrete, current, and complete "best practices in single-family houses."

Therefore, I would be happy if one or the other could show their version of the structure for PAs and GAs here.

For the PAs you actually don't need any structure. You can group/sort the devices somehow, but by the latest with the next addition, that's worthless.

As for the GAs, take a look at the KNX Association. There are several articles there and I also think a PDF, which at least explains a system. In general: I would always choose three-level GAs. In our case, we decided on the variant Room - Trade - Function, and so far I can't really name any negative consequences (for our single-family house). Ultimately, I think it doesn't even play that huge a role, as long as you consistently stick to "YOUR" system. Accordingly: it's best to think in advance about how you want to implement the naming, whether with abbreviations, without, in which order, which unambiguous names for rooms to use, and so on. Then it will work out.

Hello, I proceeded as follows:

Each room/area was assigned its own number. Starting from 01-Entrance up to 21-Carport.

For the physical addresses, each room received its own range of ten.

The motion detector at the entrance consequently has the physical address ending in 11, the switch at the entrance 12. The motion detector at the carport has 211. The actuators in the control cabinet then start at 22. These are further divided into actuator groups.
For example, a dimming actuator has 220/221/222, a switching actuator 230/231/232, a blind actuator 240/241/242.

With this division, the installation location can already be clearly determined based on the physical address. Quite interesting for diagnostics.

For the group addresses, I did it like this:

Main groups are sorted by trades.
0 - Central
1 - Lighting
2 - Switchable sockets
3 - Roller blinds/Shutters
4 - Window contacts
5 - Heating
etc.
Philips Hue and Sonos also have their own main groups here. Likewise presence detectors, weather station, and so on.

Middle groups are then chosen according to function, in the case of lighting:

1/0 - Central
1/1 - Switching
1/2 - Dimming
1/3 - Absolute dimming
1/4 - Switching feedback
1/5 - Dimming feedback

The respective group addresses are then again assigned to the aforementioned room numbers, also in ranges of tens.

The group address for switching the light in the entrance thus has 1/1/11, the associated status feedback has 1/4/11.
The lamp in the carport accordingly has 1/1/211, status 1/4/211.

Here, too, you can immediately see from the address which room it concerns.

We have been living in the house since 2017, and by now I rarely make changes. But I still find this structure very easy to manage and have never had any major space problems.
Only with the blocking functions of the blinds did it get a bit tight, but that was manageable too.

To be honest, I can no longer say where I got the structure from. I think I slightly modified either a version from Heinle or from EIBmeier.
But it doesn’t matter, I’m not claiming the idea for myself anyway ;)

It looks almost exactly the same in my ETS as well.;)

You actually don't need any structure for the PAs. You can sort/group the devices somehow, but at the latest with the next addition, that’s useless anyway.

I just took 5 PAs per room for now. Most of the time it’s only one motion detector and sometimes a switch. Most of it is centralized in the distributor. There I again have 5 PAs per panel/row.

Regarding the GAs, have a look at the KNX Association. There are several posts and I think also a PDF that explains at least one system.

In one of the PDFs, the floor is used as the main group as an example. That didn’t seem really intuitive for a single-family house to me.

For the GAs, I did it like this: Main groups are sorted by trades. 0 - Central 1/0 - Central

How do you distinguish these central variants? So what goes into 0 and what into 1/0, 2/0, etc.?

In HG0 there are cross-trade functions and in MG0 trade-specific functions.