Ik probeer al daaaaagen een Modbus te koppelen met een waveshare ( RS485 to ETH ( B) ) Ik gebruik de app SolarEdge + Growatt TCP modbus met een Waveshare RS 485 to ETH ( B) en een Growatt MIN 3300 TL-X Script wordt als goed ervaren door de test functie echter er gebeurd niks. De Homey stuurt wel i…

Have a look it the app’s topic, your likely find a solution there: [image] [APP][Pro] SolarEdge + Growatt TCP modbus Apps So, took the plunge and ordered the Waveshare RS485 to PoE Ethernet Module and had some time today to hook it up and configure it. I conne…

thank you. But still things are not clear for me.. I connected a waveshare with my network en my inverter ( growatt ) ,made a script and nothing happens… Do i have to read and write via modbus device the inverter ?. for me that part is not clear since i also have a script. Feels like double…

Did you install the before mentioned app? That should take care of everything (most :wink:)

I installed the Solaredge + growatt TCp modbus yes. I checked the + and - on the 3 and 4 connection of the growatt. If that would be enough , I pinged the waveshare ( LAN ) and have connectiong. ( I suppose offcourse with a script ) then it should work, but it doesnt… If I “test” te script I get a…

Please use the app’s topic to get support, that’s customary on this community. A lot more people will read you post and might be able to help you. Also, provide some more information, which Growatt Inverter, show a screenshot of the waveshare config, show a screenshot of the Growatt device config i…

Hi @DaneedeKruyff , Sorry, since I am new here, it takes a bit to know how it works. I use a growatt MIC 3300 TL-X inverter connected via de wifi dongle from Growatt and also connected via a waveshare. The wifi dongle works with a homescript and the Solardge + growatt TCP Modbuss app

[screenshot.53] screenshot of my waveshare

Settings of the Inverter settings in the homey App [screenshot.54]

the script gives a result , output should be working then?. [screenshot.55] The + and - on the connector are ok and i used the 3 and 4.

Growatt verbinden via Modbus

🇳🇱 Nederlands (Dutch) Vragen & hulp

DaneedeKruyff June 27, 2026, 4:19pm 2

Have a look it the app’s topic, your likely find a solution there:

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Growatt verbinden via Modbus

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