Hukseflux SR05 series - Appendix On Function Codes, Register and Coil Overview

SR05-D1A3-PV manual v1801 76/83
9.11 Appendix on function codes, register and coil overview
Table 9.11.1 Supported Modbus function codes
SUPPORTED MODBUS FUNCTION CODES
FUNCTION CODE (HEX) DESCRIPTION
0x01 Read Coils
0x02
Read Discrete Inputs
0x03
Read Holding Registers
0x04 Read Input Register
0x05 Write Single Coil
0x06 Write Single Holding Register
0x08 Diagnostics
0x0F Write Multiple Coils
0x10
Write Multiple Registers
0x46
Serial communication settings
Your data request may need an offset of +1 for each SR05 register number,
depending on processing by the network master. Example: SR05 register
number 7 + master offset = 7 + 1 = master register number 8. Consult the
manual of the device acting as the local master.
Table 9.11.2 Modbus registers 0x0000 to 0x0008
MODBUS REGISTERS 0x0000-0x0008
REGISTER
ADDRESS
(HEX)
PARAMETER DESCRIPTION OF CONTENT TYPE
OF
(R/W)
FORMAT
OF
DATA
0x0000
Irradiance (W/m
2
)
Irradiance = value/10
R
U16
0x0001 Cell temperature (
°
C) Temperature = (value-250)/10 R U16
0x0002
External temperature
(
°
C)
Not available, always returns 0
R
U16
0x0003 Wind speed (m/s) Not available, always returns 0 R U16
0x0004
Factory use only
-
-
-
0x0005
Cell temperature (
°
C)
Temperature = (value-1000)/10
R
U16
0x0006 External temperature
(
°
C)
Not available, always returns 0 R U16
0x0007
Cell temperature (
°
C)
Temperature = value/10
R
S16
0x0008 External temperature
(
°
C)
Not available, always returns 0 R S16