Bring your PV inverter data into KNX. This guide walks you through mounting, wiring, configuring and testing your ELAUSYS INV-KNX inverter gateway. For full details, see the user manual.
1. Connection
- Mount on DIN rail — 2 SU module in the cabinet.
- Connect the KNX bus — top terminal.
- Connect 12–30 VDC power — bottom screw terminal.
- Plug Ethernet (RJ45) — same LAN as the inverter / dongle.
Front panel LEDs
- Network — link OK.
- Connected — inverter Modbus OK.
- P — KNX programming button.
- Red — programming status.
2. Configuration
- Enable Modbus TCP on the inverter — see the user manual.
- Open the web interface — browse to
192.168.1.51(default). - Set IP & Modbus TCP — static IP, server IP, port number, unit ID.
- Add the gateway in ETS — pick a free physical address (e.g. 1.1.2).
- Configure ETS parameters — inverter model, AC type, PV, batteries.
- Group addresses & load — assign GAs, press P, download the application.
3. Quick test
- ✅ Network LED on — powered and Ethernet link established.
- ✅ Connected LED on — Modbus link with inverter OK.
- ✅ AC Power object updates — value visible in the ETS group monitor.
4. Troubleshooting
| Symptom | What to check |
|---|---|
| Network LED off | Power supply, RJ45 cable, switch and router link. |
| Connected LED off | Inverter IP, port and Modbus TCP enabled. |
| No KNX communication | Bus voltage; reprogram with button P. |
| Incorrect or no values | Inverter model code must match your brand / series. |
5. Download the Quick Start Guide Sheet
ELAUSYS-INV-KNX_-_Quick_Start_Guide.pdf
Need help? Get the full user manual at elausys.com/support or contact info@elausys.be.