fbpx
How can we help?
< All Topics
Print

Lovato DMED330 Electricity Meter

This guide will show you how to connect the Polar Monitoring Gateway to the Lovato DMED330 electricity meter. It will also take you through the setup and parameters required on the Lovato DMED330 to ensure communications to the Polar Gateway.

Steps to follow:

  1. Connect power to the Gateway.
  2. Connect RS-485.
  3. Final checks.
  4. Power on the system.
  5. Configure the DMED330 Serial Parameters
 

Lovato DMED330 Connection Setup

Lovaro DMED330 Wiring Diagram
1. Connect power to the Gateway
Power Polar 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
Before you switch on the device make sure you have done everything correctly in the previous steps.
 
  • 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 DMED330.  

5. Configure DMED330 Serial Parameters
In order for the Gateway to correctly communicate with the Lovato DMED330 controller, there will need to be some changes made to the communication 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

Serial Node Address

P7.01

1

1

Serial Speed

Baud Rate

P7.02

9600

9600

Communication Protocol

Data Format

P7.03

8bit – n

8bit – n

Stop Bits

Communication Stop Bits

P7.04

1

1

Protocol

Communication Protocol

P7.05

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.

Previous Lovato DMED301 Electricity Meter
Next Lovato DMG110 Electricity Meter
Table of Contents
Copyright © 2022 Polar Monitoring