Waveshare RS485 TO ETH - Device Configuration

485 TO ETH (B) User Manual
4 / 36 www.waveshare.com
Register
address
Parameter name
Byte
length
Remarks
0
Current total active
energy
4
Unsigned,keep 2 decimal
places
97
Phase A voltage
2
Unsigned, 1 decimal place is
reserved
98
Phase B voltage
2
99
Phase C voltage
2
100
Phase A current
2
Unsigned, 2 decimal place is
reserved
101
Phase B current
2
102
Phase C current
2
119
Frequency
2
356
A phase active power
4
Unsigned, 3 decimal place is
reserved
358
B phase active power
4
360
C phase active power
4
362
Total active power
4
The so-called signed means that the highest bit of 2 bytes or 4 bytes is the sign bit, for
example, 0xFFFF will be recognized as -1. Keeping 2 decimal places means that after the data
is converted as an integer, the decimal point moves from the rightmost to the left2 digits.
2.3. DEVICE CONFIGURATION
We configure the device as a client.
Use the serial port tool to monitor a TCP server on port 1883 of the local computer.