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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 public register preview. Check the catalog in your installed XPF version for complete-map availability and licensing.

Confirm the exact model and firmware, address base, register function, word order, scaling and units against the manufacturer manual before polling. This preview does not establish hardware validation.

Overview

  • Device: Eaton EM20
  • Type: Power Meter
  • Protocol: Confirm the supported transport for the exact device and firmware in the manufacturer manual.
  • Use case: power monitoring, energy metering, and facility automation
  • Works with: Modbus Monitor XPF (import directly)

Download Modbus Map

The sample below is a public preview. Check the catalog in your installed XPF version for current availability, access and licensing.

Public JSON preview · Preview data terms

Register Table (Sample)

Sample registers from the Eaton EM20 Modbus map. Confirm the sample against the exact device and firmware before use.

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 — check availability and access in the installed application catalog.
  3. Connect to your device — confirm transport, addressing and data types before starting a read operation.
  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 — reusable maps reduce repeated manual entry; validate addresses and data types for your device
  • 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