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[bolliy]

Hello everyone,

I have developed an adapter for my Huawei inverter SUN2000 and storage LUNA2000 that reads the register data via modbus TCP. The first executable version (0.1.1) can be installed directly via github.
There is also an adapter request https://github.com/ioBroker/AdapterRequests/issues/752 which has already been taken up. Nevertheless, I decided to get my own adapter because the implementation does not meet my requirements.

https://github.com/bolliy/ioBroker.sun2000.git

What already works:

• currently A maximum of 2 inverters (master/slave) can be processed, each with a battery module (max. 30kWh).

• Live data such as input power (inputPower), output power (activePower), battery charging/discharging power (chargeAndDischargePower) and the grid consumption (meter.activePower) of the Smart power sensor are read out at a fixed interval (default 20 seconds) and the corresponding states are written.

• States are only written for changed data from the inverter. This relieves the burden on the iobroker instance.

• The states “inputPower” or “activePower” in the “collected” path can be monitored with a “was updated” trigger element. Because these states are always written within the set interval.

What else needs to be implemented:

• Charge from Grid: Save cheap exchange electricity (e.g. Tibber).
• Maximum Battery Discharge Power: Limit battery discharge. For example, when charging an electric car, the uneconomical unloading of the home storage system can be prevented.

I am very happy about tests and your feedback.

[mcm1957]

Please note that another Adapter based on Adapter Request 752 has already been developed and has almost passed review for ioBroker repositories.

https://github.com/daolis/ioBroker.sun2000-modbus

Will be available at ioBroker standard repositories in the near future.

[bolliy]

Feel free to follow the discussions in the german iobroker forum