Huawei modbus

Third party integrations
1

Hi , I’m using SUN2000 (8KTL-M1) mit 10kWh LUNA (also 2 Packs) + Smartmeter DTSU 666 + SDonge. I have all integratet with “HUAWEI Solar” from HACS via TCP Modbus.
Everything works perfect until I have installed a Huawei Wallbox.
Looks like there are to many Clients connecting to the modbus / SDongle.-> lost connectin from HA to Huawei

A Modbus Proxy seams not to be the solution, because I can’t set the proxy IP in the Wallbox.

Is there anyone who has the same Installation and managed it to have a stable Integration to Home Assistant

2

I’m using fusion solar and wanted to install HACS Huawei modbus without success.
Always got failed integration.
Later on I tried to access some mdobus registers with the pure modbus integration. And it worked at least after setting up timeouts and repeats.

So for sure the SDongle response behaviour can influence the bahaviour heavily (maybe cause by #clients, generell lan setup, …)

modbus:
  - name: huawei_sun2000
    type: tcp
    host: 192.xxx
    port: 502

    delay: 2                       # nach Verbindungsaufbau 2 s warten
    timeout: 5                    # bis zu 5 s auf Antwort warten
    message_wait_milliseconds: 2500  # 250 ms zwischen Requests
    retries: 3                    # WICHTIG: keine 3 schnellen Wiederholungen
    # retry_on_empty: true

    sensors:
      - name: "Huawei AC Ladeabschalt-SOC"
        slave: 1
        address: 47088
        input_type: holding
        data_type: uint16
        scale: 0.1
        precision: 1
        unit_of_measurement: "%"
        scan_interval: 60         # alle 60 s reicht völlig
        
      - name: "Huawei Energy Working Mode"
        slave: 1
        address: 47086
        input_type: holding
        data_type: uint16
        scan_interval: 60