KACO blueplanet PV inverter

Implementation of the KACO blueplanet series PV inverters.

Compatibility

  • NX3 M2 Series

  • TL3 Series

    • KACO blueplanet 3.0 TL3 - 10.0 TL3

    • KACO blueplanet 15.0 TL3 + 20.0 TL3

    • KACO blueplanet 29.0 TL3 LV

    • KACO blueplanet 50.0 TL3

    • KACO blueplanet 60.0 TL3

    • KACO blueplanet 87.0 TL3 - 125 TL3

    • KACO blueplanet 125 TL3 - 165 TL3

Additional application notes

Experiences from testing this plugin with a KACO Blueplanet NX3 M2:

  • Modbus Unit-ID was 3, for both Modbus TCP and RTU. Modbus TCP also worked with Unit-ID 1, but RTU only worked with 3.

  • When using the Wlan module to connect via Modbus TCP, make sure no cable is plugged into the RJ45 socket used for Modbus RTU. If there is a cable plugged in, it will still work, but you will get a lot of connection errors.

  • Similar situation when using Modbus RTU - unplug the Wlan module. Modbus RTU still works with the Wlan module plugged in, but you will get a lot of connection errors.

  • The Wlan module that handles the Modbus TCP connection does not automatically reconnect to the configured Wlan router if it looses the connection (for example, when the router is restarted), or if the router is not reachable when the inverter starts up.

  • To reconnect, the inverter needs to restart. Since the NX3 usually shuts down over night and restarts in the morning, this is not too much of a problem.

Source Code