Campbell CR850 User Manual

Section 8. Operation
348
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
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
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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.

Campbell CR850 Specifications

General

Brand	Campbell
Model	CR850
Category	Measuring Instruments
Language	English