Lovato DMG700-900 Electricity Meter
This guide will show you how to connect the Polar Monitoring Gateway to the Lovato DMED700-900 electricity meter. It will also take you through the setup and parameters required on the Lovato DMG700-900 to ensure communications to the Polar Gateway.
Steps to follow:
- Connect power to the Gateway.
- Connect RS-485.
- Final checks.
- Power on the system.
- Configure the DMG700-900 Serial Parameters
Lovato DMG700-900 Connection Setup
1. Connect power to the Gateway.
Wire the Polar Gateway to a 12-24 V DC power supply. Connect the positive wire to the positive terminal and the negative wire to the negative terminal.
2. Connect RS-485
Wire the RS-485 cable to allow communication with the Polar Gateway device. Connect A+ => A and the B- => B.
3. Final checks
- Make sure the power is OFF while doing the cable wiring.
- Re-check if there are no short circuits.
- Check if the power cables are not loosely wired to the Gateway.
- Check if the power cables are not loosely wired to the Electricity Meter.
- Re-check the RS-485 twisted pair cables is correctly connected A+ => A and B- => B.
4. Power on the system.
Now you are ready to go, you can now switch on the Polar Gateway and the DMED700-900.
5. Configure DMED700-900 Serial Parameters
Note: It is critical to change the default settings to reflect the table below.
Serial Communication Setup
Name | Description | Parameter | Default | Required |
Communication Address | Node Serial Address | P7.n.01 | 1 | 1 |
Serial Speed | Baud Rate | P7.n.02 | 9600 | 9600 |
Data Format | Communication Parity | P7.n.03 | 8bit – n | 8bit-n (No Parity) |
Stop bits | Communication Stop Bits | P7.n.04 | 1 | 1 |
Protocol | Communication protocol | P7.n.05 | Modbus RTU | Modbus RTU |
You may now sign in to the Polar Portal to monitor the device remotely, the button on the right will take you through a setup process.