Fronius GEN24 Modbus Control

Control Fronius GEN24 inverter and battery via Modbus TCP from Homey Pro. Requirements - Homey Pro (local apps) - Fronius GEN24 with Modbus TCP enabled - Optional: Fronius Smart Meter (needed for import/export based cards) Inverter setup (web UI) 1) Communication -> Modbus - Mode: TCP Server - SunSpec Model Type: int + SF - Port: 502 - Allow Control: ON - Note Meter Address Offset (Smart Meter Unit ID, usually 200) 2) Grid Regulations / Export Limitation (optional) - Set Maximum grid feed-in power in the inverter UI - This is used by "Use inverter export limit" 3) Battery charging from grid (optional) - Enable if you want grid charging Add device in Homey - Enter inverter IP/hostname, port and Unit ID (default 1) - If you use a Smart Meter, set Smart Meter Unit ID (default 200) Important settings in the app - Installed PV/site capacity (Wp): total installed PV capacity in Wp (sum of all arrays) Used by "Limit inverter production to X W" - Battery max charge/discharge (kW) and optional battery capacity (kWh) Used to convert W to percent for storage control - Inverter max AC power (kW) fallback Notes - Import-capped charging and zero export run in a loop until stopped. - Intervals are in seconds (min 30 s for import-capped charging). - Modbus control can affect inverter and battery behavior. Use at your own risk.