How to connect Lovato Electric DMG series energy meter with Reduxi controller
Connect your Lovato Electric DMG meter to the Reduxi Controller via Modbus.
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Product photo of a light grey square panel-mount multimeter on a white background. Top left: orange 'Lovato' logo; model 'DMG 6'. Blue backlit LCD with 'V' and phase labels: L1-L2 385.0 (100 %), L2-L3 384.0 (100 %), L3-L1 387.2 (100 %), and 385.9 with the label 'eqv' (100 %); bottom line 0000000 79.6 kWh with an 'IN' marker. Below the display four orange buttons: MENU, up arrow, down arrow, and a circular arrow symbol. At the bottom an infrared window labelled 'IR' with two small round holes beside it. Ventilation slots at the sides and the top.
1 Technical documentation
The Lovato Electric DMG series are digital multimeters and power analyzers for energy measurement. The models differ in communication options. Reduxi reads the meter over Modbus.
| Model | Communication (according to Lovato Electric) |
|---|---|
| DMG110, DMG210 | Built-in RS485 |
| DMG610, DMG611, DMG615 | Built-in RS485; expansion modules for RS485 or Ethernet |
| DMG620 | Built-in Ethernet; expansion modules for RS485 or Ethernet |
| DMG600 | No built-in port; expansion module for RS485 (EXP1012) or Ethernet (EXP1013) |
| DMG100, DMG200 | No built-in communication port |
Manufacturer documents:
- Lovato Electric catalogue: DMG series – Instructions for connecting and configuring the meter
- DMG multimeters and power analyzers – Models, features and communication options
- Manual DMG600 / DMG610 – Setup menu, RS485 interface and Modbus parameters
2 Required equipment
- Lovato Electric DMG meter with an RS485 interface (built in or expansion module)
- Data cable between the meter and the Reduxi Controller
- Reduxi Controller
- Laptop or tablet with internet access to configure the device in Reduxi
3 Device configuration on the meter
3.1 Modbus settings
Set the Modbus parameters on the meter. The Modbus unit ID is normally 1. Note the settings. You enter the same values in Reduxi (see Point 5).
Default values of the DMG610 on its built-in RS485 port COM1, according to the Lovato Electric manual:
| Parameter | Default |
|---|---|
| Protocol | Modbus RTU |
| Node address | 01 |
| Baud rate |
9600 bps |
| Data format |
8 bits, no parity |
| Stop bits | 1 |
4 Log in to the Reduxi web interface
You can open the Reduxi web interface in two ways:
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Screenshot of three Reduxi mobile app screens side by side, with cyan boxes and number badges 2 to 4. Left screen (dashboard, dark theme): menu icon at top left marked with a box and badge 2; 'reduxi' logo; tabs 'Real time data' (active) and 'Statistics'; price 5.79 € and temperature 3.2 °C; energy flow diagram with a house in the centre (-1.25 kW) and icons with values 69.0 W, 1.3 kW, 1.1 kW (red ring), -165.0 W with 97 % (red ring) and 0.0 W values at the bottom; tabs 'Power' and 'Energy'; bottom navigation: Dashboard, Diagnostics, Device control, Settings. Middle screen (side menu): 'reduxi' logo, 'Number of locations: 1233', heading 'Reduxi device management', entries '+ Add Reduxi location' and 'Reduxi devices' (marked with a box and badge 3), then 'My profile' and 'About app'. Right screen (device page): Back; picture of a black Reduxi controller with two Ethernet ports; status 'Connected'; card 'Update available': 'New update is available for your Reduxi device.' with button 'Download and install update'; card 'Connect to configurator': 'Tunnel connection enables remote access to your Reduxi configurator, without need to be connected to the same local network.' with button 'Activate tunnel connection' (marked with a box and badge 4); card 'Unit details' with field 'Unit ID'.
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Screenshot made of two parts side by side. Left part: Reduxi mobile app screen on a dark background. Top: Back button; picture of a black Reduxi controller with two Ethernet ports and a terminal block; status 'Connected' with a Wi-Fi icon. Card 'Update available': 'New update is available for your Reduxi device.' with button 'Download and install update'. Card 'Connect to configurator' with a key icon: 'Tunnel connection enables remote access to your Reduxi configurator, without need to be connected to the same local network.' and button 'Open configurator', marked with a cyan box and number badge 5. Below: card 'Unit details' with a field 'Unit ID' (value not visible). Right part: Reduxi Configurator opened in a browser, marked with a cyan frame and number badge 6. Header: back arrow, 'Tunnel connection', reload icon. Left sidebar with icons (lightning, chip, lightning bolt, bar chart, gear). Page 'Home' with a green link icon. Green notice: 'New patch available. Click here to apply.' with a close X. Time 09:12:56. Energy flow diagram with a house in the centre (1.700 kW) and icons for grid (0.000 kW), solar (1.700 kW), battery (green, 0.000 kW and 0.800 kW), a device at left (0.900 kW), electric vehicle and a charger or device at bottom. Label 'Energy manager' at the bottom.
http://reduxi.local. You can find the controller's IP address in your router's device list or in the Reduxi app under Reduxi devices.admin · Password: admin (factory default)Text description of this image
Screenshot of the Reduxi Configurator login page in a Chrome browser window. The address bar shows 'Not secure' and 'reduxi.local'; the address bar is marked with a cyan box and an enlarged copy of it (cyan box, text 'Not secure reduxi.local') is shown at the left, connected by a cyan line. Page background: light grey line drawing of a house with solar panels (green), a wall box, an inverter, a car and a charger. Top left: 'reduxi configurator' logo. Login box in the centre with title 'Login', a language selector (English flag, 'English'), a username field and a password field, and a dark 'Login' button.
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Screenshot of the Reduxi Configurator web interface after login, light theme. Top left: 'reduxi configurator' logo. Header bar: 'Home' at left, green 'Connected' status at top right. Left sidebar: expanded section 'Devices' with a list of entries, then collapsed sections 'Manager' and 'Configuration' and 'Settings'. Main area: energy flow diagram. House in the centre with ring, value 24.20 kW. Grid icon at top left, 24.20 kW (red dot on its line). Solar icon at top right, value '-'. Left icon (battery or device), 6.700 kW (green dot on its line). Right icons (battery storage and a device), values '-'. EV charger icon at bottom left, 31.00 kW. A further device icon at bottom right. Label 'Energy manager' below the house.
5 Add the Lovato Electric DMG meter to Reduxi
5.1 Basic settings
Log in to the Reduxi Configurator via the browser (see Point 4).
- Click + Add device.
- Enter the basic settings: device type
Energy meter, typeLovato Electric DMG series, and a name of your choice. - Press Next.
5.2 Communication settings
Select the communication channel and enter the device configuration:
| Parameter | Value |
|---|---|
| Communication channel | The channel the meter is connected to |
| Modbus unit ID | Normally 1. Use the node address set on the meter. |
| Serial parameters | Same values as on the meter (see Point 3) |
| Advanced settings | Enter and choose them as needed |
5.3 Test communication
Click Test communication at the bottom of the wizard. It reads the Lovato Electric DMG once and saves nothing. If the test succeeds, click Done: only Done creates the device.
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Screenshot of the bottom button bar of a Reduxi Configurator page. Left: button 'Back'. Right: button 'Test communication' (marked with a cyan box) and dark button 'Done'.
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Screenshot of the Reduxi Configurator page 'Communication channel and device configuration'. Connection *: TCP/IP (dropdown). IP *: 192.168.50.243, with button 'Scan for IP'. Port *: 502, with button 'Test port'. Modbus unit ID *: 1. Buttons at the bottom: Back (left), Test communication and Done (right). The Done button is marked with a cyan box.
6 Check the readings
6.1 Last measurements
After communication is established, check the values under Devices – Lovato Electric DMG in the Reduxi Configurator.
6.2 Use the meter in a strategy
To use the readings in the Reduxi strategy, define a strategy as described in Strategies for Reduxi controller.
✓ Summary
Preparation (Points 1–2): Check that your DMG model has an RS485 interface. Prepare the cable, the controller and a laptop or tablet.
Lovato DMG (Point 3): Set the Modbus parameters on the meter. The Modbus unit ID is normally 1.
Add to Reduxi (Points 4–5): Log in to the Reduxi web interface. Add the device as Energy meter, type Lovato Electric DMG series. Test the communication.
Go live (Point 6): Check the last measurements and use the meter in your strategy.
→ Common issues
| Issue | Solution |
|---|---|
| Test communication fails | Check the Modbus unit ID (normally 1) and that the serial parameters in Reduxi match the meter. Check the cable. Check that your model has an RS485 interface. |
| Open configurator does not open or stays empty | The tunnel is not active yet. Wait about 30 seconds and check that the controller is online. |
Login with admin is rejected |
The password was changed during installation. Ask the installer. The Reduxi account password does not work here. |
reduxi.local does not load |
Your device is not in the same network as the controller. Use the IP address or the tunnel connection. |
| Communication test fails, device shows offline | Check reachability, IP address / port / unit ID, and that the protocol is enabled on the device. |