Direct connection to inverter AP
The inverter has an AP for local configuration. It also exposes a Modbus TCP interface. This works reasonably well. Easiest option if you are able to connect directly to the wifi AP of the inverter (e.g. using a RasPi).
Connection using the SdongleA-05 or FE
You can plug a Huawei dongle into the USB port of the inverter. The A-05 connects to your wifi and exposes a Modbus TCP interface. The FE can be used to connect the inverter to the wired network, it also exposes the Modbus TCP interface.
Connection using a Modbus RTU to TCP gateway
The inverter has a local RS-485 port exposing a Modbus RTU interface. With a RTU to TCP gateway like the Elfin-EW11, you can make this interface available through the local network (wifi or wired).
There is no way to change that with the template because the card requires all sensors to return a positive value, so if you want to change the convention you have to patch the tesla card itself (see calculateIconBubbleData at tesla-style-solar-power-card/TeslaStyleSolarPowerCard.ts at 55b06a1890eb059fad12ded85d9d9f1174b4f7ca reptilex/tesla-style-solar-power-card GitHub
A power distribution card inspired by the official Energy Distribution card for Home Assistant - GitHub - flixlix/power-flow-card-plus: A power distribution card inspired by the official Energy Dis...
Hi, I have a SUN2000L which I think is the older variant. Our setup uses a power meter and this was wired to pin 1 and 2 of the com port as that was the way these older inverters were meant to be s...
Hi, i added some traces to the sensor.py, and I discovered that almost all calls to self.inverter.get(SOMETHING") are taking almost a second.
This means that for taking some 15-20 register values it takes 15 seconds.
Is there a way to performa a single call to the inverter and get all the keys? maybe with a single call it can be faster?
Thank you
My understanding from reading all of this is that I can simply(?) connect the RS485 (A1 and B1) pins to an EE11 type device and then connect that via ethernet to my router (or a EW11 wifi device). I will then need to change the configuration of the device per the instructions at Connecting to the inverter wlcrs/huawei_solar Wiki GitHub
battery_day_discharge is significant higher than the real amount of discharged energy absorved by the house
battery_day_charge is significant lower than the real amount of energy provided by the inverter input