Specifications

EssentialsofCrestronProgramming
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71
<reset>input.Whenreset,<out>willgolowand<out*>(thecomplementof<out>)will
gohigh.
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InthisexamplethesignalforDrapesCloseisconnectedtothe<set>input,andthe
signalforDrapesOpenisconnectedtothe<reset>input.TheoutputoftheLatchis
connectedtotherelayitself.Whenth
eLatchisset,thesignalconnectedto<out>willbe
high,thusclosingtherelayandclosingthedrapes.WhentheLatchresets,thesignal
connectedto<out*>willbehigh,thusopeningtherelay.
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LightingControlFeedback
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IntheVirtualPresentationRoomprogram,thebuttonfeedbackfortheLightingcontrols
isdesignedsuchthatwhentheLightsbuttononthetouchpanelispressed,theLighting
subpagewillbedisplayed.
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TheLightingsubpagewillcontinuetobedisplayeduntilaspecifiedtimeperiodexpires
beforetheuserpresseson
eoftheLightingpresetbuttons(High,Med,LoworOff).Ifthe
userdoespressoneoftheLightingpresetbuttons,thiswillstartthetimeroveragain.
Thesubpagewon’tcloseuntilthetimerexpireswithnofurtheruserinput.Thistype of
programmingisaccomplishedusingaRetriggerableOne‐Shotsymbol.
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TheRetriggerableOne‐Shotisalmo
stfunctionallyidenticaltotheOneShot.Theonly
differenceisthattheRetriggerableOne‐Shotwillrecognizearising‐edgeonthe<trig>
inputevenwhile<out>ishigh,causingittore‐triggerandstartthecountalloveragain.
<out>willnotgolowuntilthefulldu
rationspecifiedbythedoubleprecision
<pulse_time>parameterhaselapsedsincethelasttrigger.Inthisexamplethe
RetriggerableOne‐ShotisdrivenbyanORsymbol,whichdrivesitsoutputhigh
wheneveranyoneormoreoftheinputsishigh.
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