AC Current Voltage Power Energy Frequency Power Factor Communication Module Meter 100A Ammeter Voltmeter Multimeter with RS485 USB Interface and Split Core Current

AC Current Voltage Power Energy Frequency Power Factor Communication Module Meter 100A Ammeter Voltmeter Multimeter with RS485 USB Interface and Split Core Current

• 1. Multimeter: the module is mainly used for measuring AC voltage, current, active power, frequency, power factor and active energy, the module is without display function, the data is read through the RS485 interface and computer software.
• 2. Over power alarm: active power threshold can be set, when the measured active power exceeds the threshold, it can alarm.
• 3. Physical layer protocol: physical layer use UART to RS485 communication interface Baud rate is 9600, 8 data bits, 1 stop bit, no parity.
• 4. Application layer protocol: the application layer use the Modbus-RTU protocol to communicate. At present, it only supports function codes such as 0x03 (Read Holding Register), 0x04 (Read Input Register), 0x06 (Write Single Register), 0x41 (Calibration), 0x42 (Reset energy). etc.
• 5. Note: You can find the software download address in the file: user manual in the listing, run "RUN.BAT" and "PZEM014-Master" as administrator. If you have any problem about the product, please feel free to contaut us, we will reply you in 24 hours.