Campbell CS300, Руководство по эксплуатации продукта, Страница: 23 / 26

B-1
Appendix B. Example Programs
The following programs measure the pyranometer every 10 s and convert the
millivolt output to Wm
–2
and MJm
–2
. The scan interval is entered as a constant
at the beginning of the program. This way the user changes the constant when
they want to change their scan rate and it ripples through the program. Both
programs output an hourly average flux (Wm
–2
), and a daily total flux density
(MJm
–2
). Negative values are set to zero before being processed. Wiring for the
examples is given in TABLE B-1 .
TABLE B-1. Wiring for Example Programs
CS300
Wire Colour
CS301
Wire Colour Description CR1000X CR6
Red White Signal SE 1 U1
Black Black Signal Ground
⏚ ⏚
Clear Clear Shield
⏚ ⏚
B.1 CR1000X Program
CRBasic Example B-1. CR1000X Program Measuring the CS300 or CS301
'CR1000X
'Declare Constants
't=scan rate in seconds
Const t = 10
'Declare Variables and Units
Public BattV
Public PTemp_C
Public SlrW
Public SlrMJ
Units BattV=Volts
Units PTemp_C=Deg C
Units SlrW=W/m²
Units SlrMJ=MJ/m²
'Define Data Tables
DataTable (Hourly,True,-1)
DataInterval (0,60,Min,10)
Average (1,SlrW,FP2,False)
EndTable
DataTable (Daily,True,-1)
DataInterval (0,1440,Min,10)
Minimum (1,BattV,FP2,False,False)
Totalize (1,SlrMJ,IEEE4,False)
EndTable
'Main Program
BeginProg
Scan (t,Sec,1,0)
'Default Datalogger Battery Voltage measurement 'BattV'
Battery (BattV)
'Default Wiring Panel Temperature measurement 'PTemp_C'
PanelTemp (PTemp_C,60)