MB MBMet-500AB, Operation And Installation Manual, Page: 9 / 13

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6. MBMet-500: – Default Configuration
Default configuration for solar irradiation sensor with RS485 output are shown in table-5
below.
Sr. No Parameter Default Setting
1 Communication Parameters
1.1 Device MODBUS address 1
1.2 Baud rate 9,600
1.3 Parity None
1.4 Stop bits 1
2.
RTD Channel
2.1 Temperature Unit
0
C
Table-6: Default configuration for SmartBox
7. MODBUS Registers
7.1
MODBUS Registers:
MODBUS registers are provided only for models with RS485 communication port.
Parameter values shall be provided as per selected model. Un-supported values will be read as
‘0’.
Parameters from the sensor can be read via MODBUS protocol in both signed integer and
float data formats
.
MODBUS
Register
Address Parameter
Default
Values
Length
(bits)
Register Type
Parameters
Type
Parameters Read Registers
0
Solar Irradiation
- 16 Read only
Unsigned
Integer
1
Cell Temperature
- 16 Read only
Signed
Integer
2
External temperature
(Ambient or PV
Module)
- 16 Read only
Signed
Integer
10
Solar Irradiation
- 32 Read only Float
12
Cell Temperature
- 32 Read only Float
14
External temperature
(Ambient or PV
Module)
- 32 Read only Float
MODBUS Communication Parameters
100
MODBUS ID
(Default:1)
1<ID<247
1 16 Read/Write
Unsigned
Integer
101
Baud rate
(Default: 1)
1 16 Read/Write
Unsigned