CS225 Temperature String
14
7.2.4 Example Programs
7.2.4.1 CR1000 Program for Measuring 15 Sensors Every 60 Seconds
In this example a single CS225 is being measured on Control Port 1 of a
CR1000. The CS225 includes 15 sensors with SDI-12 addresses 1 through 15.
Each sensor is polled with the “aR0!” command every 60 seconds, and stored
to a data table on the same interval. Other common station data is measured
every 60 seconds and stored to a daily data table.
'CR1000 Series Datalogger
'The following Sample program reads a CS225 string that has 15 temperature Sensors
'Declare Public Variables
Public PTemp, batt_volt
'Enter the number of temperature sensors that are in the string (will need to be adjusted
to 'fit specific applications)
Const NumTempSensors=15
'Uses the control port C1 on the CR1000 (valid port options are 1,3,5,7)
Const CS225_SDI12_Port=1
Public CS225Temp(NumTempSensors) As Float
Dim i As Long
'Define Data Tables
DataTable (Daily,1,-1)
DataInterval (0,1440,Min,10)
Minimum (1,batt_volt,FP2,0,False)
Maximum (1,batt_volt,FP2,0,False)
Average (1,batt_volt,FP2,0)
Minimum (1,PTemp,FP2,0,False)
Maximum (1,PTemp,FP2,0,False)
Average (1,PTemp,FP2,0)
EndTable
DataTable (TempSample,1,-1)
DataInterval (0,60,Sec,10)
Sample (NumTempSensors,CS225Temp(),IEEE4)
EndTable
'Define Subroutines
'*****************************************************************************
'* --------------------- ConvertNumToSDI12address() ---------------------- *
'* Convert SDI-12 character address (0->9, A->Z, & a->z) to number value *
'* (0->61). *
'*****************************************************************************
Function ConvertNumToSDI12address(address As Long) As String * 1
Select Case address
Case 0 To 9 'ASCII Code 48->57 = 0->9
Return(CHR(a 48))
Case 10 To 35'ASCII Code 65->90 = A->Z = 10->35
Return(CHR(a 55))
Case 36 To 61'ASCII Code 97->122 = a->z = 36->61
Return(CHR(a 61))
EndSelect
Return("")
EndFunction 'ConvertNumToSDI12address()
'EndSub
Summary of Contents for CS225
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