Hager ECA380D Three-phase energy meter

Installation

1. 1Wire the RS-485 A and B terminals of the Hager ECA380D to the corresponding terminals on your ModbusCloud gateway (MCG or MLP series).
2. 2Set the Modbus slave address on the Hager ECA380D using the front panel buttons, and note the address for gateway configuration.
3. 3Confirm that the meter is configured for 19200 baud and even parity (these are the default communication settings for this device).
4. 4Import the Hager ECA380D template from the ModbusCloud template library into your project.
5. 5Assign the correct Modbus slave address in the ModbusCloud device settings to match the address configured on the meter.
6. 6Verify that live readings for voltage, current, and power appear on the ModbusCloud dashboard after the first polling cycle.

Things to watch for

01

I see zero values for current and power registers. What is wrong?

Current and power registers are 32-bit values spanning two consecutive Modbus registers. Make sure your gateway is configured for 32-bit register reads with the correct byte and word order. The template expects uint32 for current and int32 for power.

02

What baud rate and parity settings should I use?

The Hager ECA380D defaults to 19200 baud with even parity (8E1). These settings must match on both the meter and the ModbusCloud gateway. A mismatch will cause communication timeouts.

03

Energy registers do not update or show unexpected values. How do I fix this?

Energy registers are located at higher address ranges starting at 45160 and 45440. Verify that your gateway supports this address range and that the register offset mapping in the template matches your firmware version.

04

Can I use this template for the Hager ECA300 or other AGARDIO meters?

This template is built specifically for the Hager ECA380D. Other AGARDIO models may use different register maps or data types. Using the wrong template can result in incorrect readings.

Registers (25)

25 read / 0 write

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