Hukseflux SR05 series - 6.3 Silicon Reference Cell Compatible Modbus Output

SR05-D1A3-PV manual v1801 45/83
6.3 Silicon Reference Cell compatible Modbus output
SR05-D1A3-PV has an IMT-Solar Si-RS485TC-T-MB silicon reference cell compatible
Modbus output. The corresponding input registers, diagnostic function and serial
communication settings are explained below.
6.3.1 Input registers (0x04)
Table 6.3.1.1 PV reference cell compatible input registers.
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
6.3.2 Diagnostics (0x08)
Diagnostic subfunction codes supported by SR05-D1A3-PV are listed in Table 6.3.2.1
Table 6.3.2.1 Diagnostic subfunction codes supported by SR05-D1A3-PV
DIAGNOSTIC SUBFUNCTION CODES
SUB
FUNCTION
CODE
NAME DATA COMMENT
0x0000
Return query data
Any
0x0001 Restart communications
option
0x0000 or
0xFF00
0x0004
Force listen only mode
0x0000
0x000A
Clear counters
0x0000
0x000B Bus message count 0x0000 Only counts messages for this
device
0x000C
Checksum error count
0x0000
0x000D
Error exception count
0x0000
0x000E
Slave message count
0x0000
0x000F
Slave no response count
0x0000
Not available, always returns 0
0x0010
Slave NAK count
0x0000
Not available, always returns 0
0x0011
Slave busy count
0x0000
Not available, always returns 0
0x0012
Bus overrun count
0x0000