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Hi,

I can't figure how to retrieve data on a SMP3-1 Kipp & Zonen pyranometer, I have seen the instruction manual, the comlunication manual, and I'm working with CRBasic to make a simple program but, all value still zero.

'CR350 Series Datalogger
'Declare Public Variables 

Public PTemp, batt_volt,ModbusData(20),Result

'Define Data Tables
DataTable (Test,1,-1)
  DataInterval (0,30,Sec,10)
  Minimum (1,batt_volt,FP2,0,False)
  Sample (1,PTemp,FP2)
  Sample (1,ModbusData(),FP2)
EndTable

'Main Program
BeginProg
  Scan (5,Sec,0,0)
    PanelTemp (PTemp,50)
    Battery (batt_volt)

    'Retrieve Modbus Data
    ModbusClient (Result,Com2,19200,1,4,ModbusData(),5,20,3,100)   

    'Enter other measurement instructions
    'Call Output Tables
    CallTable Test
  NextScan
EndProg

I'm looking for the values 5, 6, 10 and 11 on the input registers.

(link of the pyranometer : https://www.kippzonen.com/Product/266/SMP3-Pyranometre)

Waht Am I missing ?

EDIT : I said a SMP3-1 (twice) but it's a SMP3-A for "amperage" because there also a 4-20mA ouput.