Vaillant <-> Loxone

[Vancraeyenest Tim]

I have two options to connect my new vaillant geotherm installation.
Both of these options requeire a module from ISE one is KNX based the other one MODBUS server.
In light of the new controller im wondering what the best choise whould be

https://www.ise.de/en/products/ise_smart_connect_KNX_Vaillant

https://www.ise.de/en/products/ise_smart_connect_Modbus_Vaillant

please help me disside

[Tico]

I am a frequent user of Modbus/Loxone with a solar/battery installation. I have limited use of KNX with one airconditioner.

Modbus features -

1. Direct connection to the Miniserver via Modbus TCP (ethernet - no further costs required),
2. Use within Lox Config is relatively straight forward,
3. Update rate is good at 5-10 seconds.

KNX features -

1. Direct connection to the Miniserver KNX line but external KNX power supply is required (this is a specific 30V supply that is only built for KNX devices),
2. Use within Loxone is limited to a couple of KNX compatible blocks (one switch and one lighting),
3. Programming is difficult with a separate programming app called ETS5 for the KNX device. This is a really clunky and non user-friendly app for new users. The ETS5 software is free for less than five KNX devices.
4. Update rate is programmed via the ETS5 tool.


I would highly recommend Modbus given the option.

[Gargamel]

https://www.loxwiki.eu/display/LOX/Vaillant

[sprobst]

Raspi + ebus Adapter + Node-Red

cheaper and much more flexible than the „official“ solution (Check the FHEM Forum die the ebus Adapter.)

[olicat]

Hi!

Also a LoxBerry-installation could be a solution:

https://www.loxwiki.eu/display/LOXBERRY/ebusd+plugin

I did not test this plugin yet.
But I do use the referred ebusd along with smarthome.py and a Esera-EBus-Adapter to bring my Vaillant-heatpump VWL 82/3 S into my KNX-system.

https://www.esera.de/produkte/ebus/135/1-wire-hub-platine?c=20

Regards, Oliver