Hello everyone, I’m looking for some help getting a stable Modbus TCP connection between my Growatt inverters and Homey Pro 2023. System setup 46 × 420 Wp solar panels 3 × Growatt MIN inverters: MIN 3600TL-XH MIN 4200TL-XH MIN 4600TL-XH All inverters connected through an Elfin EW11 RS485-to-W…

Hi @Niels_Wijnbergen , Please report your issue in the app topic: [image] [APP][Pro] SolarEdge + Growatt TCP modbus Apps Purpose The difference of this app and the already existing solar panels app is that this app reads the data directly from the inverter. …

Hello Sven, Thanks for your reply! I have updated the 2024 to 2023. I don’t use the SolarEdge + Growatt Modbus TCP app, but the Modbus TCP/IP app, because with the SolarEdge + Growatt app you can only read data and cannot write data. Is it normal to post issues directly in the topic of the app? …

[image] Niels_Wijnbergen: Is it normal to post issues directly in the topic of the app? I wasn’t aware of that, so I will do that from now on. The app specific topics are there to combine all posts related to that app. So all questions, answers, knowledge is available in one place. Normally …

hey, 1st the solaredge modbus app supports a lot also writing many registers from flow but use the test version of the app. many growatt users submitted PRs to make it better. lst year was all about Growatt. so modbus app is maybe good for writing things once in a while . but like always make …

Hello gents, Thanks for the support and reactions. I have replaced the EW11 by a waveshare Waveshare RS232/485/422 naar PoE Ethernetgateway | Elektronica voor jou now all is working good. reading register 3 ever 30 seconds and if needed, price below zero, write register 3 and if price is below tax…

Growatt MIN XXXX TL-XH + EW11 Modbus TCP instability ("Connection to modbus server closed")

Questions & Help

smarthomesven October 2, 2026, 8:41pm 2

Hi @Niels_Wijnbergen ,
Please report your issue in the app topic:

Homey Pro 2024 does not exist. I assume you mean Homey Pro 2023?

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Growatt MIN XXXX TL-XH + EW11 Modbus TCP instability ("Connection to modbus server closed")

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