Fronius GEN24

Use cases

• Monitor real-time PV production and battery state of charge on a cloud dashboard for residential solar customers.
• Configure battery charge and discharge windows to maximize self-consumption during peak tariff hours.
• Create an alert when the inverter status indicates a fault or unexpected shutdown.
• Track daily and monthly PV yield across multiple Fronius GEN24 installations from a single account.
• Adjust battery discharge capacity remotely to respond to changing grid feed-in regulations.
• View Fronius Tauro inverter data in read-only mode alongside GEN24 systems in a mixed fleet.

Installation

1. 1Enable Modbus TCP on the Fronius GEN24 via its local web interface using the technician or service password.
2. 2Deactivate or remove any existing third-party integration on the inverter to prevent register conflicts.
3. 3Connect the ModbusCloud gateway (MCG or MLP series) to the same local network as the Fronius GEN24.
4. 4Import the Fronius GEN24 template in the ModbusCloud platform and assign the inverter IP address and Modbus TCP port (default 502).
5. 5Verify communication by checking that PV power, battery state, and inverter status values appear on the dashboard.
6. 6Optionally load the example battery control configuration to enable charge and discharge window management.

Things to watch for

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