<10kWh, the display unit is Wh(1kWh=1000Wh), such as: 9999Wh
≥10kWh, the display unit is kWh, such as: 9999.99kWh
Reset energy: use software to reset.
-Over power alarm:
Active power threshold can be set, when the measured active power exceeds the threshold, it
can alarm
Communication interface :
RS485 interface.
-Communication protocol
Physical layer protocol:
Physical layer use UART to RS485 communication interface
Baud rate is 9600, 8 data bits, 1 stop bit, no parity
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.
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
The address range of the slave is 0x01 ~ 0xF7. The address 0x00 is used as the broadcast
address, the slave does not need to reply the master. The address 0xF8 is used as the general
address, this address can be only used in single-slave environment and can be used for calibration etc.operation.
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SHENZHEN QINDA ELECTRONICS CO.,LTD located in shenzhen,huaqiangbei.leading independent wholesale distributor of electronic components in the industry. We supply Moduels,LED Display,Sensors,Thermoelectric Peltier,Cooler,Temperature controller etc., active components (IC, memory chip, and transistors etc.,) and Passive Components (Capacitor,Resistor and inductor etc.,) to major OEM/EMS. We have extensive industry knowledge and sufficient inventory. This enables us to provide a complete and versatile technical supports to our customers. Our philosophy: let's all make profit together.
