Campbell-scientific CR3000 Micrologger Instrukcja Użytkownika Pobierz pdf (Strona 483)

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Appendix A. CRBasic Programming Instructions

483

-or-

If [condition 1] Then

[then statements]

ElseIf [condition 2] Then

[elseif then statements]

Else

[else statements]

EndIf

Scan/ExitScan/ContinueScan/NextScan

Establishestheprogramscanrate.ExitScanandContinueScanareoptional.See

FasterMeasurementRates

(p.236)forinformationonuseofScan()/NextScanin

burstmeasurements.

Syntax

Scan(Interval, Units, Option, Count)

[statement block]

ExitScan

[statement block]

ContinueScan

[statement block]

NextScan

SelectCase/Case/ CaseIs/CaseElse/EndSelect

Executesoneofseveralstatementblocksdependingonthevalueofan

expression.CaseElseisoptional.NotethatEndSelectandEndIfcallthesame

function.

Syntax

Select Case testexpression

Case [expression 1]

[statement block 1]

Case [expression 2]

[statement block 2]

Case Is [expression fragment]

Case Else

[statement block 3]

EndSelect

SlowSequence

Marksthebeginningofasectionofcodethatwillrunconcurrentlywiththemain

program.

Syntax

SlowSequence

SubScan/NextSubScan

Controlsamultiplexerormeasuressomeanaloginputsatafasterratethanthe

programscan.SeeFasterMeasurementRates(p.236)fori

nformationonuseof

SubScan/NextSubScaninburstmeasurements.

Syntax

SubScan(SubInterval, Units, Count)

[measurements and processing]

NextSubScan

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