Neovolt via Modbus TCP
This guide describes step by step how to connect a Neovolt battery system to the Currentt Navigator via Modbus TCP over the local network (Ethernet).
See also: For connection via RS-485 (Modbus RTU), see the guide Neovolt Modbus RTU.
✅ Compatible models
| Model | Power |
|---|---|
| BW-INV-SPH5K + BW-BAT-10.1P | 5 kW |
| BW-INV-SPH3.6K + BW-BAT-10.1P | 3.6 kW |
| BW-INV-SPB5K + BW-BAT-10.1P | 5 kW (AC-coupled) |
| BW-INV-TPH10K + BW-BAT-4.8S | 10 kW (three-phase) |
🧰 Requirements
- Currentt Navigator (connected to the local network)
- Ethernet cable (RJ45, CAT5/Cat6)
1️⃣ Step 1: Install the Neovolt
- Install the Neovolt according to the supplied installation manual
- Ensure the system is powered on and functioning correctly
2️⃣ Step 2: Connect Ethernet cable
- Remove the cover from the communication panel on the bottom of the inverter (4 screws)
- Connect an Ethernet cable (RJ45) to the LAN port on the inverter
- Connect the other end to your network switch or router
- The inverter automatically obtains an IP address via DHCP
3️⃣ Step 3: Enable Modbus on the inverter
Modbus must be manually enabled via the LCD display on the inverter.
- Navigate on the display to Function
- Enter the installer password: 1111
- Go to ModBus
- Set Modbus enable to YES
- Confirm the setting
4️⃣ Step 4: Configure network settings
Check the network settings on the inverter:
- Navigate on the display to Function > Ethernet Settings
- Check the following settings:
| Setting | Value |
|---|---|
| DHCP | Enabled (recommended) |
| IP address | (automatically assigned via DHCP) |
- Note the IP address assigned to the inverter
5️⃣ Step 5: Configuration in the Currentt Navigator
After connecting and configuring the inverter, the battery must be added in the Currentt Navigator.
Via the Setup Wizard (recommended)
- Click the settings icon (top right of the screen)
- Choose Setup Wizard
- Follow the on-screen steps
Manual configuration
- Click the settings icon (top right of the screen)
- Go to Components
- Click the + button in the Batteries section
- Select Neovolt
- Enter the connection details:
| Parameter | Value |
|---|---|
| Connection | Modbus TCP |
| IP address | (IP address of the Neovolt inverter) |
| Port | 502 |
| Modbus address | 85 (default) |
📋 Settings summary
| Parameter | Value |
|---|---|
| Connection | Ethernet (Modbus TCP) |
| Protocol | Modbus TCP |
| IP address | (dynamic or static) |
| Port | 502 |
| Modbus address | 85 (default) |
🛟 Troubleshooting
| Problem | Possible cause | Solution |
|---|---|---|
| No connection | Modbus not enabled | Check that Modbus enable is set to YES via the LCD display |
| No connection | Wrong IP address | Check the IP address via the LCD display or the router |
| No connection | Devices on different network | Ensure the Navigator and the Neovolt are on the same (V)LAN |
| No connection after restart | IP address changed (DHCP) | Set a static IP address |
| Battery not responding | System not powered on | Check that the Neovolt is powered on and operational |