DTSU666-H Smart Power Sensor
User Manual
2 Overview
Issue 01 (2018-05-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
10
Communication function
The Sensor has a RS485 communication interface, the baud rate can be changed between
4800bps and 9600bps. The default Communication parameters is 9600bps, none parity
bits and 1 stop bit, and communication addresses (see factory numbers or LCD display),
support ModBus RTU protocol.
ModBus-RTU interface definition is defined in document “Huawei inverter matching
meter Modbus interface definition description”, Article 2.1 general signal definition table
(Float), document version V100, release date 2018-01-29.
2.3 Application Scenarios
Scenario 1: The smart power sensor is used to realize power restriction of the power grid with
charge and discharge control towards energy storage in the household inverter scheme, which
is the core component for household energy management. It adopts RS485 communication,
which can realize the electrical quantity measurement, energy metering function and in
respond to the upper host for the real-time data query.
Figure 2-5
Application Scenarios
