Set - Peacefair PZIOT-E02 AC Single Phase Din Rail Meter WiFi Energy Power Meter Electric Wattmeter

Features:
1. Physical layer protocol - Physical layer use UART to TTL communication interface, Baud rate is 9600, 8 data bits, 1 stop bit, no parity.
2. 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.
3. 0x41 function code is only for internal use (address can be only 0xF8), used for factory calibration and return to factory maintenance occasions, after the function code to increase 16-bit password, the default password is 0x3721
4. The address range of the slave is 0x01 - 0xF7. The address 0x00 is used as