VSN800 Weather Station Product Manual
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SunSpec register map
Start End # Name Type Units
Factor
Constants Description
0001 0002 2 C_SunSpec_ID uint32 N/A N/A "SunS"
Well-
known value. Uniquely identifies
this as a SunSpec Modbus Map
0003 0003 1 C_SunSpec_DID uint16 N/A N/A 0x0001
Well-
known value. Uniquely identifies
this as a SunSpec Common Model
block
0004 0004 1 C_SunSpec_Length uint16 registers N/A 65 Length of common model block
0005 0020 16 C-Manufacturer String(32) N/A N/A "ABB" Well-known value
0021 0036 16 C-Model String(32) N/A N/A
"VSN800-
“VSN800-14”
Manufacturer specific value
0037 0044 8 C-Options String(16) N/A N/A "0" Manufacturer specific value
0045 0052 8 C-Version String(16) N/A N/A "1" Manufacturer specific value
0053 0068 16 C_Serial Number String(32) N/A N/A "Serial" Manufacturer specific value
0069 0069 1 C_DeviceAddress unint16 N/A N/A 60 Modbus Id
SunSpec Device Model Measurement Registers
0070 0070 1 C_SunSpec_DID int16 N/A N/A 307 Start of next Device
0071 0071 1 C_SunSpec_Length int16 N/A N/A 11 Device Model Block Size
0072 0072 1
E_BaseMet_Air
Temperature
int16 °C -1 Measured Ambient Air Temperature
0073 0073 1
E_BaseMet_Relative
Humidity
int16 % 0 N/A Relative Humidity
0074 0074 1
E_BaseMet_Barometric_
Pressure
int16 Hpa 0 N/A Barometric Pressure
0075 0075 1
E_BaseMet_Wind
_Speed
int16 m/s 0 Measured Wind Speed
0076 0076 1
E_BaseMet_Wind
_Direction
int16 Degrees 0 Measured Wind Direction
0077 0077 1 E_BaseMet_Rain int16 Inches 0 N/A Rainfall
0078 0078 1 E_BaseMet_Snow int16 Inches 0 N/A Snowfall since last poll
0079 0079 1 E_BaseMet_PPT_Type int16 Inches N/A N/A
Precipitation Type (WMO 4680 SYNOP
code reference)
0080 0080 1
E_BaseMet_Electric
_Field
int16 V/m 0 N/A Electric Field
0081 0081 1
E_BaseMet_Surface
_Wetness
int16 kOhms 0 N/A Surface Wetness
0082 0082 1
E_BaseMet_Soil
_Moisture
int16 % 0 N/A Soil Moisture
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