Can I put an SDM72D-M and an SDM630 on the same bus?

Yes. Give each meter a unique Modbus slave address (1, 2, 3, ...) using the meter front panel menu. Then create one ModbusCloud device per meter and import the matching template on each.

Import and export energy both increase over time. Is that right?

Yes, those are lifetime counters, so they only go up. To get daily or monthly consumption, compute the difference between two snapshots. ModbusCloud can do that automatically on the dashboard side using a delta aggregation.

Free Modbus template: Eastron SDM72D-M

Name: Eastron SDM72D-M
Brand: Eastron
SKU: 853c8d22-ee21-4ba3-8fd4-dee9df241d75

Try the demo Shop

Free Modbus template: Eastron SDM72D-M | ModbusCloud

Registers (15)

15 read / 0 write

Name	Address	Function	Type	Unit	Access
Voltage L1	0	FC04	float32	V	R
Voltage L2	2	FC04	float32	V	R
Voltage L3	4	FC04	float32	V	R
Current L1	6	FC04	float32	A	R
Current L2	8	FC04	float32	A	R
Current L3	10	FC04	float32	A	R
Power L1	12	FC04	float32	kW	R
Power L2	14	FC04	float32	kW	R
Power L3	16	FC04	float32	kW	R
Total active Power	52	FC04	float32	kW	R
Frequency	70	FC04	float32	Hz	R
Total Energy Import	72	FC04	float32	kWh	R
Total Energy Export	74	FC04	float32	kWh	R
Total apparent Power	56	FC04	float32	VA	R
Total reactive Power	60	FC04	float32	var	R

Eastron SDM72D-M

Overview

Key readings

Use cases

Installation

Things to watch for

Registers (15)

Working with Modbus in your projects?

More Eastron templates

Eastron SDM120M

Eastron SDM630 Series

Eastron SDM630-TCP

Eastron SDM230

Eastron SMART X96-5J

More RTU templates

Alnor HRU-P

Alnor HRU

Wattsonic - Schmachtl Sun Energy Box

Heidelberg Wallbox Energy Control

connecdoor.controller

Belimo Air-Water Actuator Modbus RTU