UsingTridium’sSedona1.2ComponentswithWorkbenchThistutorialassistsintheunderstandingoftheSedonacomponentsprovidedinTridium’sSedona-1.2.28release.Newwiththe1.2releaseisthattheSedonacomponents,previouslyconcentratedinoneControlkit,arenoworganizedinsmallerkitsunderafunctionalname.Componentsdiscussedinthisdocumentcanbefoundinthefollowingkits:

• basicSchedule• datetimeSTD• func• hvac• logic• math• pricomp• timing• types

Sedonacomponentsaredeployedinkitsofwhichtherearethreetypes–Tridium-release,customhardware-independent,andcustomhardware-dependent.ThistutorialonlyaddressestheTridium-releasecomponentswhichcanbefoundinanySedonaapplication.ByTridium-releasewearereferringtoTridiumrelease1.2.28.CustomcomponentsdeployedincustomkitsareprovidedbydevelopersfromtheSedonacommunity.Itisuptothedevelopertoexplainhowtheircustomcomponentsfunction.Theyarenotexplainedhere.However,thetechniquesfoundinthistutorialcanbeappliedtoanySedonaproject.

TheintentofthistutorialisnottoteachhowtocreateHVACapplicationsusingSedonabecauseSedonacanbeusedanywherewherecontrolofprocessesisrequired.ItisonlyintendedtointroducethebasicSedonacomponentswhichcanbeassembledontoawiresheetbyintegratorstherebycreatingapplications.

ThistutorialwasconductedusingNiagaraWorkbenchastheSedonatoolsotheappearanceofthecomponentsandtheconfigurationofparametersareuniquetothistool.OtherSedonatoolssuchastheSedonaApplicationEditorcreateasomewhatdifferentappearanceofthecomponentsandusedifferentmethodsforconfiguration.However,alltheexamplesinthetutorialcanbeimplementedwithanySedonatool.

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VariableTypesAlthoughthereareseveralvariabletypesusedbySedona,threearethemostinteresting—Boolean,FloatandInteger.Youcandefineconstantsforeachtypeanduseconvertingcomponentstochangethedatarepresentationtoadifferenttype.

ConfiguringConstants

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UsingWriteComponents

ConvertingBetweenComponentTypes

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Float-to-BooleanandBoolean-to-FloatConversion

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NegatingaBooleanVariable—InvertingYourLogic

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BooleanProduct—“ANDing”BooleanVariables

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BooleanSum—“Oring”BooleanVariables

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ExclusiveOR—AORBbutNotBoth

CascadingLogicBlocksandUnusedInputs

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Boolean,FloatorIntegerSelection

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De-Multiplexing

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FloatAddition

FloatSubtraction

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FloatMultiplication

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FloatDivision

FindingMinimumsandMaximums

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RoundingOffFloats

AveragingSuccessiveReadings

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On-DelaysandOff-Delays

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UsingtheTimer

UsingOne-Shots—Mono-StableMultivibrators

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CreatingRamps—A-StableMultivibrators

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ComparingTwoFloats

ASimpleClock—theTickToc

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IntroducingCounters

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OperatingonReal-WorldSignals—HysteresisandLimiting

HandlingNon-LinearSignals

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SimpleSet-ResetFlipFlop—Bi-StableMultivibrator

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TheLoopComponent—BasicPIDController

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LinearSequencer—Bar-GraphRepresentationofaFloat

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ReheatSequencer—FourStagedOutputsfromaFloatInput

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Reset—ScalingaFloatInputbetweenTwoLimits

Tstat—BasicOn/OffTemperatureController

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Real-TimeClockandScheduling

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PriorityArrays