Campbell-scientific CR800 and CR850 Measurement and Control Systems Manuel d'utilisateur Page 459

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 566
  • Table des matières
  • DEPANNAGE
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 458
Appendix A. CRBasic Programming Instructions
459
Scan/ExitScan/ContinueScan/NextScan
Establishestheprogramscanrate.ExitScanandContinueScanareoptional.See
FasterMeasurementRates
(p.232)forinformationonuseofScan()/NextScanin
burstmeasurements.
Syntax
Scan(Interval, Units, Option, Count)
[statement block]
ExitScan
[statement block]
ContinueScan
[statement block]
NextScan
SelectCase/Case/ CaseIs/CaseElse/EndSelect
Executesoneofseveralstatementblocksdependingonthevalueofan
expression.CaseElseisoptional.NotethatEndSelectandEndIfcallthesame
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
Marksthebeginningofasectionofcodethatwillrunconcurrentlywiththemain
program.
Syntax
SlowSequence
SubScan/NextSubScan
Controlsamultiplexerormeasuressomeanaloginputsatafasterratethanthe
programscan.SeeFasterMeasurementRates(p.232)fori
nformationonuseof
SubScan/NextSubScaninburstmeasurements.
Syntax
SubScan(SubInterval, Units, Count)
[measurements and processing]
NextSubScan
TriggerSequence
UsedwithWaitTriggerSequencetocontroltheexecutionofcodewithinaslow
sequence.
Syntax
TriggerSequence(SequenceNum, Timeout)
WaitTriggerSequence
UsedwithTriggerSequencetocontroltheexecutionofcodewithinaslow
sequence.
Syntax
WaitTriggerSequence
Vue de la page 458
1 2 ... 454 455 456 457 458 459 460 461 462 463 464 ... 565 566

Commentaires sur ces manuels

Pas de commentaire