Campbell-scientific CR800 and CR850 Measurement and Control Systems Manual de usuario descargar pdf (Pagina 432)

100

101

Section 11. Glossary

432



Format formats the selected CR800 memory device. All files, including

data, on the device will be erased.

LNCMDsoftware

AfeatureofLoggerNetSetupScreen.IntheSetupScreennetworkmap

(EntireNetwork),clickonaCR800dataloggernode.TheFileRetieval

tabshouldbeoneofseveraltabspresentedattherightofthescreen.

FillandStopMemory

Amemoryconfigurationfordatatablesforcingadatatabletostop

acceptingdatawhenfull.

finalstorage

TheportionofCR800SRAMMemoryallocatedforstoringdatatables

withoutputarrays.FinalStorageisaringmemory,withnewdata

overwritingtheoldestdata.

FLOAT

Four‐bytefloating‐pointdatatype.DefaultCR800datatypeforPublic

orDimvariables.SameformatasIEEE4.IEEE4isthenameusedwhen

declaringdatatypeforstoreddatatabledata.

FP2

Two‐bytefloating‐pointdatatype.DefaultCR800datatypeforstored

data.WhileIEEEfour‐bytefloatingpointisusedforvariablesand

internalcalculations,FP2isadequateformoststoreddata.FP2provides

threeorfoursignificantdigitsofresolution,andrequireshalfthe

memoryasIEEE4.

FTP

FileTransferProtocol.ATCP/IPapplicationprotocol.

fullduplex

Systemsallowcommunicationssimultaneouslyinbothdirections.

garbage

Therefuseofthedatacommunicationworld.Whendataaresentor

receivedincorrectly(therearenumerousreasonswhythishappens),a

stringofinvalid,meaninglesscharacters(garbage)oftenresults.Two

commoncausesare:1)abaud‐ratemismatchand2)synchronousdata

beingsenttoanasynchronousdeviceandvi

ceversa.

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