Campbell-scientific CR800 and CR850 Measurement and Control Systems Instrukcja Użytkownika Strona 445

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Section 11. Glossary
445
string
Adatumconsistingofalphanumericcharacters.
supportsoftware
IncludesPC200W,PC400,RTDAQ,LoggerNet,andLoggerNetclients.
BriefdescriptionsarefoundinDataloggerSupportSoftware
(p.76).A
completelistingofdataloggersupportsoftwareavailablefromCampbell
ScientificcanbefoundintheappendixSoftware
(p.546).Software
manualscanbefoundatwww.campbellsci.com.
synchronous
Thetransmissionofdatabetweenatransmittingandareceivingdevice
occursasaseriesofzerosandones.Forthedatatobe"read"correctly,
thereceivingdevicemustbeginreadingattheproperpointinthe
series.Insynchronouscommunication,thiscoordinationis
accomplishedbysynchronizingthetransmittingandrecei
vingdevicesto
acommonclocksignal(seeAsynchronous
(p.425)).
systemtime
WhentimefunctionsarerunoutsidetheScan()/NextScanconstruct,
thetimeregisteredbytheinstructionwillbebasedonthesystemclock,
whichhasa10msresolution.Seescantime
(p.442).
task
1)GroupingofCRBasicprograminstructionsbytheCR800.Tasks
includemeasurement,SDM,andprocessing.Tasksareprioritizedbya
CR800operatinginpipelinemode.2)Ausercustomizedfunction
definedthroughLoggerNetTaskMaster.
TCP/IP
TransmissionControlProtocol/InternetProtocol.
Telnet
Asoftwareutilitythatattemptstocontactandinterrogateanother
specificdeviceinanetwork.
constant
Aterminalisthepointatwhichasinglewireconnectstoawiringpanel
orconnector.Terminalsareusuallysecuredwithsmallscrew‐orspring
loadedclamps.Seeconnector
(p.427).
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