Campbell-scientific CR800 and CR850 Measurement and Control Systems Uživatelský manuál stáhnout pdf (Strana 456)

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Appendix A. CRBasic Programming Instructions

456



PeakValley

Detectsmaximaandminimainasignal.

Syntax

PeakValley(DestPV, DestChange, Reps, Source, Hysteresis)

Sample

Storesthecurrentvalueatthetimeofoutput.

Syntax

Sample(Reps, Source, DataType)

SampleFieldCal

Writesfieldcalibrationdatatoatable.SeeCalibrationFunctions

(p.500).



SampleMaxMin

Samplesavariablewhenanothervariablereachesitsmaximumorminimumfor

thedefinedoutputperiod.

Syntax

SampleMaxMin(Reps, Source, DataType, DisableVar)

StdDev

Calculatesthestandarddeviationovertheoutputinterval.

Syntax

StdDev(Reps, Source, DataType, DisableVar)

Totalize

Sumsthetotalovertheoutputinterval.

Syntax

Totalize(Reps, Source, DataType, DisableVar)

A.2.3.2 Multiple-Source

ETsz

Storesevapotranspiration(ETsz)andsolarradiation(RSo).

Syntax

ETsz(Temp, RH, uZ, Rs, Longitude, Latitude, Altitude, Zw, Sz,

DataType, DisableVar)

RainFlowSample

StoresasampleoftheCDM_VW300RainFlowintoadatatable.

Syntax

RainFlowSampe(Source, DataType)

WindVector

Processeswindspeedanddirectionfromeitherpolarororthogonalsensors.To

saveprocessingtime,onlycalculationsresultingintherequesteddataare

performed.

Syntax

WindVector(Repetitions, Speed/East, Direction/North,

DataType, DisableVar, Subinterval, SensorType, OutputOpt)

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