Single-Phase Meter Quick Installation Guide
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Current Communication Protocol
Modbus
current communication : 8 data bits of the
protocol, no valid bit and 1 stop bit
Current Communication Address is
11
Baud rate is 9600
1:2400
2:4800
3:9600
5. Trouble Shooting
1. The meter wiring is incorrect;
2. The voltage supplied to the meter is abnormal;
1. If the wiring is incorrect, please follow the correct wiring
instruction (see wiring diagram);
2. If the power supply voltage is abnormal, please supply
power according to the voltage range specification on Manuel
3. If it is not the above problem, please contact the local
supplier.
CT current sampling is abnormal.
Check whether the CT wiring is correct and stable.
RS485
Communication
Abnormal
1. The RS485 communication cable is open,
shorted, or connected reversely;
2. The address, baud rate, and data bit check digit
of the instrument does not match the host;
3. No matching resistor is added to the end of the
RS485 communication cable (usually when the
distance exceeds 100 meters);
4. The communication protocol commands of the
1. If there is a problem with the communication cable, please
replace the communication cable;
2. Set the address, baud rate and data bit check digit of the
meter is same as host by pressing the button, and the button
setting operation will "parameter setting";
3. If the communication distance is more than 100 meters,
and the meter and the host have the same communication
parameter settings, the communication still cannot be reached,