Howto Access AZZURRO 3PH HYD20000 ZSS Hybrid Inverter

[Hetzi74]

I have this Azzurro Inverter connected to the RJ45 Ethernet interface (I think it is also called Ethernet LSE-3 Stick Serial 210xxxxxxx).

Access to the inverter data does not currently work out of the box with Home Assistant and the Solarman HACS integration.

For this the following changes were necessary:

• copy the hyd-zss-hp-3k-6k.yaml file from https://github.com/StephanJoubert/home_assistant_solarman/blob/main/custom_components/solarman/inverter_definitions/hyd-zss-hp-3k-6k.yaml into your /custom_components/solarman/inverter_definitions directory of your Home Assistant installation.

• Modify the file /custom_components/solarman/const.py at LOOKUP_FILES and add a line with 'hyd-zss-hp-3k-6k.yaml', so that the inverter also appears in the Solarman Configuartion and can be selected.

If you have the WiFi stick in use, the access should be possible with the changes.

• For the wired RJ45 ethernet stick you still have to apply the modifications described by ADNOVEA changes can be found at Switched from wireless lan logger LSW-3 to cable logger LSE-3 #247 (comment) This includes changes to parser.py and solarman.py in 3 places.

With this it worked at least for me to be able to access the data of the inverter. With this data the energy dashboard works. But I also wanted to configure the Power Flow Card Plus to see the energy flow live. To do this, I still have to calculate a few values via templates from the Solarman data, this mainly concerns the current total solar power and the current power of the grid feed.

Planned for the future:

• Read out additional values of the inverter, e.g. the voltage of the 3 phases in the power grid. For this purpose the hyd-zss-hp-3k-6k.yaml file will have to be modified. The document from https://github.com/StephanJoubert/home_assistant_solarman/files/10862339/ModBus-RTU.Communication.Protocol.3PH.Hybrid.and.Inverter.pdf should at least contain the necessary information for this.

• My wish would be to be able to control the inverter from Home Assistant. Because in the installation is prescribed a derating at 12kW power to the grid and the charging of the battery and the period of derating should be postponed. But I am not sure if this is even technically possible with the RJ45 Ethernet stick, or it still needs something like Sofar2mqtt for this. (See: https://github.com/cmcgerty/Sofar2mqtt ) Does anyone know if with existing hardware a control of the inverter could be possible?