verified connector library

Eastron SDM630MCT energy meter

Register map(s) for this device, each at the trust rung it earned. Addresses are 0-based as on the wire; word order and scaling are only confirmed at the hardware-verified rung.

interop-verified

Read + decoded cleanly over a real network vs an independent third-party Modbus test server (transport and framing; reads are remapped into the server's register window, so the map's own addresses are NOT exercised). Does NOT prove word order/scaling against the actual device.

pointaddress (0-based)typescaleunit
phase_1_line_to_neutral_volts0F32BE1V
phase_2_line_to_neutral_volts2F32BE1V
phase_3_line_to_neutral_volts4F32BE1V
phase_1_current6F32BE1A
phase_2_current8F32BE1A
phase_3_current10F32BE1A
phase_1_active_power12F32BE1W
phase_2_active_power14F32BE1W
phase_3_active_power16F32BE1W
phase_1_apparent_power18F32BE1VA
phase_2_apparent_power20F32BE1VA
phase_3_apparent_power22F32BE1VA
phase_1_reactive_power24F32BE1VAr
phase_2_reactive_power26F32BE1VAr
phase_3_reactive_power28F32BE1VAr
phase_1_power_factor30F32BE1
phase_2_power_factor32F32BE1
phase_3_power_factor34F32BE1
average_line_to_neutral_volts42F32BE1V
average_line_current46F32BE1A
sum_of_line_currents48F32BE1A
total_system_power52F32BE1W
total_system_volt_amps56F32BE1VA
total_system_var60F32BE1VAr
total_system_power_factor62F32BE1
frequency_of_supply_voltages70F32BE1Hz
total_import_kwh72F32BE1kWh
total_export_kwh74F32BE1kWh
total_import_kvarh76F32BE1kVArh
total_export_kvarh78F32BE1kVArh
line_1_to_line_2_volts200F32BE1V
line_2_to_line_3_volts202F32BE1V
line_3_to_line_1_volts204F32BE1V
average_line_to_line_volts206F32BE1V
neutral_current224F32BE1A

link settings as documented (unverified): RTU; default 9600 8N1; unit ID 1; FC 03,04,08,16; Register Order controls the order in which the Eastron Digital meter receives or sends floating-point numbers.

bench facts as documented (unverified)
terminals2 screw terminals
A/B polarityA and B
termination120 ohm (0.25 Watt min.) resistor
connectorscrew terminals
shield/groundThe cable screen should be connected to the 'Gnd' terminals.
wiring notestwisted pair screened cable (Typically 22 gauge Belden 8761 or equivalent)
max registers/read60
broadcastnot supported
protocol notesEach request for data must be restricted to 40 parameters or less.
model register464515
serial register464513
firmware register464516
doc revisionV1.7

generated by gemini:gemini-3.5-flash · harvested from https://www.eastroneurope.com/images/uploads/products/protocol/SDM630MCT_MODBUS_Protocol_V1.7.pdf (Eastron); manual-faithful — the document's claims, panel risk: ELEVATED — panel is not confident; proved interop-verified on 2026-06-10 · recorded 2026-06-10

The trust ladder

Each rung states what it proved and what it did not. Gray until proven; green is earned by hardware only.

Have a device that isn't here? Upload its register map — generation is free, and the connector earns its rung by being proven, not claimed.

Need it proven on your own device? Hardware verification — if it doesn't verify, you don't pay.

Building a platform? License the verified library — machine-readable maps, firmware matrix, API access.