Configure the Energy Meter

Energy meters are optional but recommended for Edge systems. They serve two primary functions:

  • As a GUARD: protecting maximum current draw in a grid
  • As a CONSUMER: measuring and compensating for uncontrollable loads (buildings, solar installations)
GUARD vs CONSUMER energy meter roles

With both methods, Edge knows the total current that's taken from the grid, enabling Edge to load balancing and protect the fuse.

With the GUARD option, the measurements are most accurate and most up to date since Edge does not rely on the charger connectivity and metervalue-interval to know the total current consumption. Therefore this option is recommended

Step 1: Physical Connection

Install and connect a Modbus energy meter following the energy meter installation guide.

Step 2: Add the Meter to Edge

Add a new energy meter

Open the Edge in EdgeManager, from the LiveView, if an energy meter shows up, click on the energy meter to configure it.

If you do not see an energy meter, click on the + button in the bottom-right corner to add a new energy meter.


Configure the energy meter

Click on the energy meter to open the energy meter dashboard. In the dashboard, various settings can be changed.

  • Model — the energy meter model
  • Name — user-specific name for the device

  • Grid Role — GUARD or CONSUMER
  • On failure — how Edge responds if the meter goes offline
    • Panic (default): shuts down grid if meter goes offline
    • Safe current: allows continued operation at specified amperage

  • Protocol — Modbus RTU or Modbus TCP
  • Modbus address — the meter's Modbus address
  • Interface — which RS-485 port the energy meter is on (Modbus RTU only)
  • For Modbus RTU, serial settings can be configured for the RS-485 port (these are shared for all devices on the RS-485 port)

Step 3: Add Meter to Grid

Configure grid assignment following the simple grid configuration example.

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