Huawei DDSU666-H User Manual page 13

DDSU666-H Smart Power Sensor
User Manual
No.
7
8
9
10
1. Backlight closed without button operation for sixty seconds.
2. The combined active energy default by the factory is equal to positive active energy.

The sensor can set the communication address and baud rate through buttons.
Setting method please see Figure 2-4: Long press the button 3s, the sensor will automatically
enter into the communication address setting interface, with cyclic display for setting display
interface of baud rate and communication address. Please press the button when required for
baud rate or communication address settings, it will exit to communication address and baud
rate settings without button operation for twenty seconds.
The details are as follows:
Figure 2-4 Communication address and baud rate setting diagrammatic sketch

The sensor is equipped with one RS485 communication interface, with baud rate changed
among 4800bps and 9600bps. The default baud rate is 9600bps with check bit and stop bit to
be n.1, communication address (see factory number or LCD display), support ModBus-RTU
protocol.
Issue 01 (2018-05-18)
Content
Parameter setting function
Communication function
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Description
Current I=5.000A
Active power P=1.100kW
Power factor Ft=1.000
Frequency F=50.00Hz
2 Overview
8