Specifications

EssentialsofCrestronProgramming
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87
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Symbolcompletenessandcommentingout
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Intheaboveexample,thedigitalinputtothemoduleismarkedwiththespecialsignal
name“//”.Thissectionwilldiscusstheconceptofsymbolcompletenessand
commentingoutsignals.
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InSIMPLWindows,allsymboldefinitionsmustbeʺcompleteʺfortheprogramto
compile.Asy
mbolthatisincompletewillhave*!*markerinfrontofit.The*!*marker
willalsoappearinthesubsystemwherethesymbolislocatedinProgram View, aswell
asthetop‐levelLogicfolder.
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Theconceptofcompletenessdiffersdependingonthesymboltype:
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Mostdevicesymbols,suchastouchpanels,useʺr
andomcompletenessʺ,i.e.,youcan
connectanysignalorleaveanysignalblankandthesymbolwillstillbeconsidered
complete.
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Mostlogicsymbolsandmodulesuseʺlistcompletenessʺ,whereeverysignalisa
requiredfield.Thatis,youmustfillineveryinp
utinorder,everyoutputinorder,and
everyparameterinorder.Theonlyexceptiontothisisifagivensignalissurroundedby
brackets[].Thissignifiesthatthesignalisoptionalandnotrequiredforprogramming.