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Eaton EM20 Modbus Register Map

The Eaton EM20 is a power meter used for power monitoring, energy metering, and facility automation. This page provides a sample Modbus register map with addresses, data types, and signal categories to help engineers commission, troubleshoot, and monitor the device. For Eaton EM20 deployments, teams often use this map to surface demand and energy data in critical power distribution and electrical monitoring systems.

This page shows a preview subset of the full device map available in Modbus Monitor XPF.

Engineers searching for Eaton EM20 Modbus map, Eaton EM20 register map, or Eaton EM20 Modbus registers can use this page as a compatibility snapshot before importing the full map into Modbus Monitor XPF.

Overview

  • Device: Eaton EM20
  • Type: Power Meter
  • Protocol: Modbus RTU / Modbus TCP
  • Use case: power monitoring, energy metering, and facility automation
  • Works with: Modbus Monitor XPF (import directly)

Download Modbus Map

The full Eaton EM20 Modbus register map is available inside Modbus Monitor XPF as a pre-built device map. Download the free feature-locked version to access and export the complete map.

Register Table (Sample)

Sample registers from the Eaton EM20 Modbus map. Import the full map in Modbus Monitor XPF to access all registers.

Signal Address Type Units Category
TotalEnergy 400067 FLOAT32 kWh Energy
DemandTotalWatts 400043 FLOAT32 kW Demand
ACVAN 400001 FLOAT32 - General
DemandVAs 400045 FLOAT32 kW Demand
DemandWattsA 400047 FLOAT32 kW Demand
DemandVAsA 400049 FLOAT32 kW Demand
DemandWattsB 400051 FLOAT32 kW Demand
DemandVAsB 400053 FLOAT32 kW Demand
PeakDemandWatts 400055 FLOAT32 kW Demand
PeakDemandVAs 400057 FLOAT32 kW Demand
PeakDemandVAsA 400059 FLOAT32 kW Demand
PeakDemandWattsA 400059 FLOAT32 kW Demand

How to Use This Map

  1. Download Modbus Monitor XPF — Get the free version.
  2. Select the Eaton EM20 device map — pre-built maps are bundled and ready to load.
  3. Connect to your device — enter the device IP or COM port and start polling registers immediately.
  4. Visualise and log — build dashboards, trend data, and export readings without manual register entry.

Why Use Pre-Built Maps

  • Saves time — no need to manually look up or enter register addresses
  • Reduces errors — pre-validated maps eliminate mis-typed addresses and wrong data types
  • Speeds commissioning — connect and poll within minutes instead of hours
  • Reusable across projects — use the same map across multiple sites and installations

Data Categories Available

  • Demand
  • Energy