Campbell CR3000 Micrologger, Operator'S Manual

Page: 266 / 644

Section 7. Installation
266
SlowSequence
Do
SDI12SensorSetup (1,5,2,95)
Delay (1,95,Sec)
SDI12SensorResponse (Temp(3))
Loop
EndSequence
SlowSequence
Do
SDI12SensorSetup (1,7,3,95)
Delay (1,95,Sec)
SDI12SensorResponse (Temp(4))
Loop
EndSequence
EndProg
Using Alternate Concurrent Command (aC)
'This program example demonstrates the use of the special SDI-12 concurrent measurement
'command (aC) when back-to-back measurements are not desired, as can occur in an application
'that has a tight power budget. To make full use of the aC command, measurement control
'logic is used.
'Declare variables
Dim X
Public RunSDI12
Public Cmd(4)
Public Temp_Tmp(4)
Public Retry(4)
Public IndDone(4)
Public Temp_Meas(4)
Public GroupDone
'Main Program
BeginProg
'Preset first measurement command to C!
For X = 1 To 4
cmd(X) = "C!"
Next X
'Set five-second scan rate
Scan (5,Sec,0,0)
'Other measurements here
'Set five-minute SDI-12 measurement rate
If TimeIntoInterval (0,5,Min) Then RunSDI12 = True
'Begin measurement sequence
If RunSDI12 = True Then
For X = 1 To 4
Temp_Tmp(X) = 2e9 'when 2e9 changes, indicates a change
Next X