Fronius GEN24
Die Stromversorgung wurde geändert
Fronius GEN24 Modbus Control
Smarter Fronius GEN24 control over Modbus TCP.
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.
Unterstützte Geräte
Flow-Karten
Klicke oben auf ein Gerät, um nur verwandte Flow-Karten anzuzeigen.
Wenn ...
Fronius GEN24
Export exceeds Threshold (W) W
Triggers when grid export exceeds the specified threshold.
Fronius GEN24
Import exceeds Threshold (W) W
Triggers when grid import exceeds the specified threshold.
Fronius GEN24
Limited charging started
Triggers when limited charging mode is activated.
Fronius GEN24
Limited charging stopped
Triggers when limited charging mode is deactivated.
Fronius GEN24
Peak shaving started
Triggers when peak shaving mode is activated.
Fronius GEN24
Peak shaving stopped
Triggers when peak shaving mode is deactivated.
Fronius GEN24
Auto zero export started
Triggers when auto zero export mode is activated.
Fronius GEN24
Auto zero export stopped
Triggers when auto zero export mode is deactivated.
Und ...
Fronius GEN24
Limited charging is active
Check if limited charging mode is currently running.
Fronius GEN24
Peak shaving is active
Check if peak shaving mode is currently running.
Fronius GEN24
Auto zero export is active
Check if auto zero export mode is currently running.
Dann ...
Fronius GEN24
Disable inverter export limit
Enables Modbus override: ramp=0, WMaxLimPct=100%, WMaxLim_Ena=1.
Fronius GEN24
Use inverter export limit
Disables Modbus override (WMaxLim_Ena=0) so the inverter's Grid Regulations/export limit setting controls export.
Fronius GEN24
Discharge at least Discharge power (W) W
Forces battery to discharge at minimum this rate, even if the house doesn't need the power (excess is exported). Example: Set to 3000 W but house uses 1000 W → battery discharges 3 kW (1 kW to house, 2 kW exported).
Fronius GEN24
Reset battery control
Stops external control: zeros charge/discharge limits and sets StorCtl_Mod=0.
Fronius GEN24
Charge at least Charge power (W) W
Charges battery at minimum this rate. Pulls power from the grid if solar is insufficient. Example: Set to 3000 W but only 1000 W solar → battery charges at 3 kW (1 kW solar + 2 kW from grid).
Fronius GEN24
Discharge at most Discharge power (W) W
Limits battery discharge to maximum this rate. If the house needs more power, it pulls from the grid instead. Example: Set to 2000 W and house uses 5000 W → battery provides 2 kW, grid provides 3 kW.
Fronius GEN24
Set export limit to Max production (W) W
Limits grid export (feed-in) to this W target. Uses WMaxLimPct to cap how much power is sent to the grid. Same register as production limit but different use case.
Fronius GEN24
Charge at most Max charge (W) W
Limits battery charging to maximum this rate from solar only. Any excess solar power is exported to the grid. Example: Set to 1000 W and you have 3000 W solar → battery charges at 1 kW, 2 kW is exported.
Fronius GEN24
Start limited charging up to Max charge (W) W (max import Max grid import (W) W, fuse Main fuse per phase (A, optional) A/phase, interval Check interval (s, min 30) s)
Fronius GEN24
Keep import under Peak target (W) W (duration Duration (minutes, 0 = until stopped) min, interval Update interval (seconds) s)
Discharge to keep import below the peak target. Runs periodically until duration expires or stopped.
Fronius GEN24
Set production limit to Max production (W) W
Limits total inverter AC output (WMaxLimPct) to this W target as percentage of installed capacity. This caps how much the inverter produces regardless of house consumption.
Fronius GEN24
Start auto zero export (interval Update interval (seconds) s, duration Duration (minutes, 0 = until stopped) min)
Adjusts feed-in limit to keep export near 0 W using Smart Meter. Runs periodically until stopped or duration expires.
Fronius GEN24
Stop limited charging
Fronius GEN24
Stop peak shaving
Stops running peak shaving and resets discharge to 0.
Fronius GEN24
Remove production limit (restore 100%)
Fronius GEN24
Stop auto zero export
Stops running auto zero export and disables Modbus override.
Support
Der Entwickler dieser App bietet keinen direkten Support an.
Was ist neu?
Version 1.3.30 — Charge and discharge limits now work together. StorCtl_Mod is automatically computed (1=charge limit, 2=discharge limit, 3=both). Renamed flow cards: 'Charge at least/most', 'Discharge at least/most' with clear hints and examples.
Fronius GEN24 Modbus Control
Fronius GEN24 Modbus Control ist mit dem gewählten Homey nicht kompatibel.
Fronius GEN24 Modbus Control wird in Kürze auf Homey installiert.
Changelog
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Wir lassen Andreas Kjörk wissen, dass du die App magst. Vielleicht erwägst du, Andreas Kjörk durch eine Spende zu unterstützen?
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Der Entwickler von Fronius GEN24 Modbus Control akzeptiert Spenden.
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