- 10 -
SunSpec and Modbus
The PV
MET
-100-2 follows the SunSpec standard. Refer to the official SunSpec
specifications for application information. The full register map is listed below. The
PV
MET
-100-2 has the following default communication settings:
Serial/ General
Baud Rate
9600
Parity
None
Stop Bits
1
RS-232
Flow control None
RS-485
2-Wire Half Duplex
Modbus
Device ID
60
Register Map:
Start End
# Name
Type
Units
Scale
Factor
Contents
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
"Rainwise_Inc" Well-known value
0021 0036 16 C-Model
String(32)
N/A
N/A
"PVmet-100" Manuf specific value
0037 0044
8 C-Options
String(16)
N/A
N/A
"0"
Manuf specific value
0045 0052
8 C-Version
String(16)
N/A
N/A
"1"
Manuf specific value
0053 0068 16 C_Serial Number
String(32)
N/A
N/A
"Serial"
Manuf specific value
0069 0069
1 C_DeviceAddress
unint16
N/A
N/A
60
Modbus Id
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_Spee
d
int16
m/s
0
N/A
Wind Speed