Campbell-scientific CR800 and CR850 Measurement and Control Systems Manuel d'utilisateur télécharger pdf (Page 427)

Section 11. Glossary

427

CacheData

Thedatacacheisasetofbinaryfileskeptontheharddiskofthe

computerrunningthedataloggersupportsoftware.Abinaryfileis

createdforeachtableineachdatalogger.Thesefilesaresetupto

mimicthestorageareasindataloggermemory,andbydefaultaretwo

timesthesizeofthestoragearea.Whe

nthesoftwarecollectsdata

fromaCR800,thedataarestoredinthebinaryfileforthatCR800.

Varioussoftwarefunctionsretrievedatafromthedatacacheinsteadof

theCR800directly.Thisallowsthesimultaneoussharingofdataamong

softwarefunct

ions.

SimilarinfunctiontoCR800finalstoragetables,thebinaryfilefora

dataloggerissetupasringmemory.Thismeansthatasthefilereaches

itsmaximumsize,thenewestdatawillbeginoverwritingtheoldest

data.

CalibrationWizardSoftware

ThecalibrationwizardfacilitatestheuseoftheCRBasicfieldcalibration

instructionsFieldCal()andFieldCalStrain().ItisfoundinLoggerNet(4.0

orhigher)orRTDAQ.

Callback

AnamegiventotheprocessbywhichtheCR800initiates

telecommunicationwithaPCrunningappropriateCSIdatalogger

supportsoftware.Alsoknownas"InitiateTelecommunications."

CD100

Anoptionalenclosuremountedkeyboarddisplayforusewiththe

CR1000andCR800dataloggers.SeetheappendixKeyboardDisplay

(p.

545).



code

ACRBasicprogram,oraportionofaprogram.

Comport

COMisagenericnamegiventophysicalandvirtualserial

communicationsports.

constant

Aconnectorisadevicethatallowsoneormoreelectronconduits

(wires,traces,leads,etc)tobeconnectedordisconnectedasagroup.A

connectorconsistsoftwoparts—maleandfemale.Forexample,a

commonhouseholdacpowerreceptacleisthefemaleportionofa

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Campbell-scientific CR800 and CR850 Measurement and Control Systems Manuel d'utilisateur Page 427