Appendix A.  CRBasic Programming Instructions 
 
453
ReadOnly
Flagsacommaseparatedlistofvariables(PublicorAliasname)asread‐only.
Syntax
ReadOnly [variable1, variable2, ...] 
Units
Assignsaunitnametoafieldassociatedwithavariable.
Syntax
Units [variable] = [unit name] 
 
A.1.2 Constant Declarations 
Const
Declaressymbolicconstantsforuseinplaceofnumericentries.
Syntax
Const [constant name] = [value or expression] 
ConstTable/EndConstTable
Declaresconstants,thevalueofwhichcanbechangedusingtheexternal
keyboard/displayorterminalCoption.Theprogramisrecompiledwiththenew
valueswhenvalueschange.SeeConstants
(p.122).
Syntax
ConstTable 
  [constant a] = [value] 
  [constant b] = [value] 
  [constant c] = [value] 
EndConstTable 
 
A.2 Data-Table Declarations 
DataTable/EndTable
Markthebeginningandendofadatatable.
Syntax
DataTable(Name, TrigVar, Size) 
  [data table modifiers] 
  [on-line storage destinations] 
  [output processing instructions] 
EndTable 
 
DataTime
Declarationwithinadatatablethatallowstimestampingwithsystemtime.
Syntax
DataTime(Option) 
 
A.2.1 Data-Table Modifiers 
DataEvent
Setstriggerstostartandstopstoringrecordswithinatable.Oneapplicationis
withWorstCase.
Syntax
DataEvent(RecsBefore, StartTrig, StopTrig, RecsAfter)