Kermi Modbus Binding

Add-ons Bindings
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1

Hi guys,

i just got a kermi heat pump installed, checking to get this included in my smart home system (openhab, homematic, etc).
So i researched how this is done. I found some integrations for KNX using modbus.
Contacting kermi they activated modbus-tcp for reading values.

As it is very long and stupid work to have all these items created in UI with modbus, poller and data-Things and Items i decided to make it easier, checking already implemented modbus-binding (as e3dc).

I’ve currently a working version, starting a pull-request to openhab-addons.

As described in the pull-request template of openhab it may a good idea to contribute to market-place (also or instead) ?

Feel free to comment.

Current PR : https://github.com/openhab/openhab-addons/pull/16329

2

Any chances to make it for the usage of redmatic ?
that would be great.

3

Hi,
i’m not using redmatic or had any intention to use it.
Do you know the requirements or changes to implement ?
Any help will be appreciated.

Regards,
Kai

4

I will try to implement it.

Wolfgang Hauck

5

I used to use the modbus kermi extension for a year now. But since it lacks write support and the 50/51 devices (storage modules), I now created a full implementation exposing all available modbus registers. It requires a .things file and some .transform, and I also created a .items file for easier integration. Thanks to artificial intelligence, it took only half a day :smiley: :smiley:

6

Hi @daabm
as it is in the main-branch of openhab, feel free to fork and add your part to it.
Create a PR and all will be helped.

I’m out, as i dont use openhab anymore. Go for it !

7

Looked into your code - I don’t understand how openhab bindings work, seems to be way overcomplicated. So rather „no" :partying_face::joy: