PD668U-9K4 Digital Display Meter
PD668U-9K4 Digital Display Meter is a high-quality power metering product from Huabang Power Technology. Category: Digital Display Meter Series. Model: PD668U-9K4. This product complies with relevant Chinese national standards (GB/T series) and is widely used in electrical metering, energy management, smart grid, industrial distribution and building energy monitoring applications. Features include high measurement accuracy, long service life, low power consumption and reliable operation in various environmental conditions. Multiple communication options (RS-485, MBUS, NB-IoT, 4G, LoRa) available depending on the model.
Key Features
- Brand: Huabang
- Category: Digital Display Meter Series
- Model: PD668U-9K4
- 接线：时请保证输入信号的相序、极性与端子一一对应。输入电压应不高于产品的额定输入电压， 否则应考虑使用PT， 在电压输入端须安装1 A保险丝； 输入电流应不高于产品的额定输入电流， 否则应考虑使用外部CT。 RS 485通讯
- 接线：仪表提供一个RS 485通讯接口， 采用MODBUS_RTU通讯规约(见附录)。在一条通讯线路上最多可以同时连接32台仪表， 每台仪表应设置线路内唯一的通讯地址。通讯连接应使用带有铜网的屏蔽双绞线，线径不小于0 . 5 mm。布线时应使通讯线远离强电电缆或其他强电场环境， 用户可根据具体情况选用其他
- 功能：码每个通讯信息帧的第2字节。主机发送，通过
