Campbell LS300G-EU, User Manual

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A-1
Appendix A. Controlling Power to the
LS300G-EU
The LS300G-EU uses considerably more power than cellular modems previously
offered by Campbell Scientific, Inc. Therefore, it may be necessary to use the
datalogger to control power to the LS300G-EU. The following program examples
show how to control power to the LS300G-EU using the switched 12V terminal
on the datalogger.
The first program, created by Short Cut , uses the TimeIsBetween instruction to
turn on SW12 for 15 minutes every 60 minutes between 9:00 a.m. and 5:00 p.m.
(Note that the
TimeIsBetween instruction requires operating system version 28 or
later in the CR1000, CR3000, or CR800. It is supported in all CR6 operating
systems.)
'CR6 Series
'Created by Short Cut (3.1)
'Declare Variables and Units
Public BattV
Public PTemp_C
Public SW12State As Boolean
Units BattV=Volts
Units PTemp_C=Deg C
'Define Data Tables
DataTable(Table2,True,-1)
DataInterval(0,1440,Min,10)
Minimum(1,BattV,FP2,False,False)
EndTable
'Main Program
BeginProg
'Main Scan
Scan(5,Sec,1,0)
'Default Datalogger Battery Voltage measurement 'BattV'
Battery(BattV)
'Default Wiring Panel Temperature measurement 'PTemp_C'
PanelTemp(PTemp_C,60)
'SW12 Timed Control
'Turn ON SW12 between 0900 hours and 1700 hours
'for 15 minutes every 60 minutes
If TimeIsBetween(540,1020,1440,Min) And TimeIsBetween(0,15,60,Min) Then
SW12State=True
Else
SW12State=False
EndIf
'Always turn OFF SW12 if battery drops below 11.5 volts
If BattV<11.5 Then SW12State=False
'Set SW12-1 to the state of 'SW12State' variable
SW12(1,SW12State,0)
'Call Data Tables and Store Data
CallTable Table2
NextScan