Is Smarthome KNX automation possible based on the floor plan?

that's exactly how it's done. but since I assumed that the OP only needed it for 'understanding' I didn't go into that much detail

That would certainly have been one of the next questions. The OP didn't even have KNX in their own house two days ago and now is already asking where the phase and neutral conductor are connected.

I have 6 installed. 1 RCD for lighting, 1 RCD for kitchen cooling devices/freezer chest, 1 RCD for outdoor area, 1 RCD for sockets/blinds, 1 RCD for kitchen, 1 RCD for internal distribution cabinet

Also an interesting approach, we have one per floor, one for outdoors, one for the heating, and one for the garage. That also made it easier for the planning of the terminals.

You need to get to "know" Grym better - that's just how he is. For me, this is going in a totally wrong direction because the horse is being put before the cart.

Except for the garage, it is like with Uwe here - I actually wanted a French wiring where lights and sockets are separate, but somehow that got lost.

You have to "get to know" Grym better - that's how he is. For me, this goes in a totally wrong direction, because the horse is being saddled from the back.

Well, I’m only trying to convey basics, give suggestions, and point out false statements. One of the biggest misconceptions is still that KNX is expensive. Anyone who has understood the basics will also understand that the additional costs for functionally comparable equipment are, if anything, only minimally higher. It only gets expensive through 'showing off', and that no longer has anything to do with comparable functionality but is like comparing a duck with a Lamborghini.

Whether or not to decide on it is up to each person.

My opinion is that when building new, one should definitely install a bus system like KNX. I also tell everyone who asks me that they should lay at least 1 IP cable in EVERY room. Because that is the future. Whether television, telephone, or internet— everything runs through it.

Except for the garage, it is like with Uwe for us - I actually wanted a French wiring system where lights and sockets are separate, but somehow that got lost.

Separating lights and sockets is a must for me. What good does it do if the RCD trips on the ground floor and I’m standing in the entire floor in the dark without power while upstairs there is still electricity?

The highest likelihood of the RCD tripping is the sockets. A defective or damp device and the RCD trips. Then at least I’m not standing there in the dark.

For me, separating light and socket is a must.

And what’s the use if the RCD for the light trips? Then you really have darkness throughout the whole house. It’s enough to connect N and PE when installing lamps and suddenly ... it’s gone. I have the lights on the circuits of the rooms, with the entire hallway connected to the upstairs RCD. The probability of a short circuit there is the lowest, and then you still have the light if the downstairs RCD trips. So you can get to the fuse box in the light. On the other hand, if one trips in a room, at least I immediately notice because the light in that area goes out.

Well, with the RCD it’s like that – I don’t find it particularly dramatic, it would have just been nice. The case is rather rare and if it happens, there are flashlights or the other floors provide light. In the end, it’s again one of those contrived things.

You’re probably somewhat right about the additional costs, because what it offers conventionally costs – if at all possible – usually more or just as much.

But that’s the problem with you "freaks": It’s part of new builds – like all houses without floor-to-ceiling showers are Hartz4 [untranslated]. It’s not part of it and a house doesn’t become less livable because of it – which is implied in many posts here. Whether consciously or unconsciously worded that way – and that always bothers me at least.

Nevertheless, I think it’s very good how you provide clarification here – although the questioner is still approaching the matter incorrectly.

well, not for me. I only have 1 floor for living
the [og] is an office, it has its own supply and distribution with its own [rcd] circuits ....
there is no basement either. I don’t need one, I have a generous floor area and one is modest after all