Campbell-scientific CR800 and CR850 Measurement and Control Systems Manuel d'utilisateur Page 433

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Section 11. Glossary
433
globalvariable
AvariableavailableforusethroughoutaCRBasicprogram.Thetermis
usuallyusedinconnectionwithsubroutines,differentiatingglobal
variables(thosedeclaredusingPublicorDim)fromlocalvariables,
whicharedeclaredintheSub()andFunction()instructions.
ground
Beingorrelatedtoanelectricalpotentialof0Volts.
halfduplex
Systemsallowbidirectionalcommunications,butnotsimultaneously.
handshake,handshaking
Theexchangeofpredeterminedinformationbetweentwodevicesto
assureeachthatitisconnectedtotheother.Whennotusedasaclock
line,theCLK/HS(pin7)lineinthedataloggerCSI/Oportisprimarily
usedtodetectthepresenceorabsenceofperipherals.
HelloExchange
Theprocessofverifyinganodeasaneighbor.
Hertz
Abbreviated"Hz."Unitoffrequencydescribedascyclesorpulsesper
second.
HTML
HypertextMarkupLanguage.Aprogramminglanguageusedforthe
creationofwebpages.
HTTP
HypertextTransferProtocol.ATCP/IPapplicationprotocol.
IEEE4
Fourbyte,floatingpointdatatype.IEEEStandard754.Sameformatas
Float.FloatisthenameusedwhendeclaringdatatypeforPublicorDim
declaredvariables.
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