[afbeelding] I hope somebody can help me with this: After installing this app on my Homey Pro 2023 I get no data and error: “Modbus polling failed”. I own a Fronius GEN24 12 inverter with 15.8 Reserva battery from Fronius. I used the internal (static) ip-adres of my inverter. I enabled the …

First of all which Fronius app, Willem? [Screenshot20260522011205Ecosia] Probably it’s this one: [image] Fronius GEN24 Modbus Control | Homey Smarter Fronius GEN24 control over Modbus TCP. but there’s no forum topic or active support by the developer.

Yes Peter, That is the one. No support, I saw that. But, I was hoping some user could help me with it. I would like to control my Inverter and battery with advanced flows in Homey. With the other apps I do not get ‘and-’ and ‘then-’ cards. I could miss something (which has happened before) Th…

Hi Willem, Perhaps Ronny can show you some possibilities? He uses his Modbus app to control stuff [image] Homevolt battery from Tibber in Homey? Energy We are getting a lot offtopic. But last one…I use my Modbus app to control the Fronius Gen24. To set charg…

fronius is not so hard and Ronny has 1 I think and uses his app to control it had many request for this but no 1 can provide me some vpn access , mostly in a few hours I have a working one. controlling requires more testing. you can also do it yourself , not so hard and code is on github. any hel…

Thanks for the tip guys! I will dive in. Experience learns that this kind of things often are very difficult for me. But who knows, maybe I’ll surprise myself.

The local Fronius API (REST API used by the other apps) is readonly access. It can only read realtime data. In addition there is a Solarweb cloid API to get additional data. I’m using the HomeAssistant Integration, because it combines both. Then I just import the data to Homey via HA community app…

nowadays with chatgpt codex and these homey, HA github repos from me and others plus have the right modbus registers pdf , it should be easy to add new driver to the apps. or make a new 1 from scratch. really impressive

Thanks Ronny, Appreciate this. I will look int it when I find some time for it. I am very careful about this. My knowledge of mod-bus-stuff is zero. My wife is quite ‘specific’ about taking risks with meddling with essential installations. Spouse-acceptance’ for Homey is high, and I would’t wan…

Maybe someone has a tip. In the Fronius GEN24 Modbus Control app I get an error (Modbus polling failed) and it loses connection.. After restarting the inverter, Homey and restarting the app itself, it comes online for maybe a minute or so. When I restart the app after that, it workes again for a …

Hi Ronny, maybe you can give me a tip. I really appreciate your examples and help. Maybe you have a tip. The examples are too risky for me. I do not understand almost every cards or terms used in it :-). But I am still hoping to get the app Fronius GEN24 Modbus Control working here (its a pity deve…

Fronius GEN24 Modbus Control - how to get it working?

Apps

Andreas_Kjork August 28, 2026, 5:49pm 19

The Fronius Control now have its own thread [APP][Pro] Fronius Control - Questions & Help - Homey Community Forum

Topic		Replies	Views
[APP][Pro] Support for Fronius inverters and smart meters Apps app , homey-pro	93	5310	September 13, 2025
[APP][Pro] Fronius Control Apps app , homey-pro	3	50	August 29, 2026
[APP][Pro] Modbus - Connect every Modbus devices Apps app , homey-pro , advancedflow	585	19554	August 19, 2026
[App][Pro] Fronius GEN24 Local app Apps homey-pro	8	219	March 24, 2026
[APP][Pro] SolarEdge + Growatt TCP modbus Apps app , pv-solar	1857	58539	September 6, 2026

Fronius GEN24 Modbus Control - how to get it working?

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