Campbell-scientific CR800 and CR850 Measurement and Control Systems Manual de usuario descargar pdf (Pagina 348)

100

101

Section 8. Operation

348



Table 83. DNP3 Implementation — Data Types Required to Store

Data in Public Tables for Object Groups

Data Type Group Description

Boolean 1 Binary input

2 Binary input change

10 Binary output

12 Control block

Long 30 Analog input

32 Analog change event

40 Analog output status

41 Analog output block

50 Time and date

51 Time and date CTO



8.6.1.2.2 CRBasic Instructions

Complete descriptions and options of commands are available in CRBasic Editor

Help.

DNP()

SetstheCR800asaDNPslave(outstation/server)withanaddressandDNP3‐

dedicatedCOMport.NormallyresidesbetweenBeginProgandScan(),soitis

executedonlyonce.ExampleatCRBasicexampleImplementationofDNP3

(p.349),

line20.

Syntax

DNP(ComPort, BaudRate, DNPSlaveAddr)

DNPVariable()

AssociatesaparticularvariablearraywithaDNPobjectgroup.Whenthemaster

pollstheCR800,itreturnsallthevariablesspecifiedalongwiththeirspecific

groups.Alsousedtosetupeventdata,whichissenttothemasterwheneverthe

valueinthevariablechanges.ExampleatCRBasicexampleImplementationof

DNP3

(p.349),line24.

Syntax

DNPVariable(Source, Swath, DNPObject, DNPVariation, DNPClass,

DNPFlag, DNPEvent, DNPNumEvents)

DNPUpdate()

DetermineswhenDNPslave(outstation/server)willupdateitsarraysofDNP

elements.SpecifiestheaddressoftheDNPmastertowhicharesentunsolicited

responses(eventdata).MustbeincludedoncewithinaScan()/NextScanforthe

DNPslavetoupdateitsarrays.Typicallyplacedinaprogramafterth

eelements

inthearrayareupdated.TheCR800willrespondtoanyDNPmasterregardless

ofitsaddress.

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Campbell-scientific CR800 and CR850 Measurement and Control Systems Manual de usuario Pagina 348

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