Easy Electronics xLogic Micro PLC - Basics on Special Functions; Designation of the Inputs

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table.
ByselectingtheOutputOFFifresultisTRUEoption,theoutputtakestheinversevalueofthevalue
configuredinthetruthtable.
6.4Basicsonspecialfunctions
Becauseoftheirdifferentinputdesignation,youcanseerightawaythatthereisadifferencebetweenthe
specialfunctionsandbasicfunctions.SFscontaintimerfunctions,retentivefunctionsandvarious
parameterassignmentoptions,whichallowyoutoadaptthecircuitprogramtosuityourown
requirements.
Thissectionprovidesyouwithabriefoverviewofinputdesignationsandwithsomeparticular
backgroundinformationonSFs.TheSFsinparticulararedescribedinChapter7.5
6.4.1Designationoftheinputs
Logicalinputs
Here,youwillfindthedescriptionoftheconnectorsyoucanusetocreatealogicallinktootherblocks
ortotheinputsofthexLogicunit.
S(Set):
AsignalatinputSsetstheoutputtological “1”.
R(Reset):
TheresetinputRtakespriorityoverallotherinputsandresetstheoutputs.
Trg(Trigger):
Thisinputisusedtotriggerthestartofafunction.
Cnt(Count):
Thisinputisusedforcountingpulses.
Fre(Frequency):
Frequencysignalstobeevaluatedareappliedtothisinput.
Dir(Direction):
Thisinputdeterminesthedirectionofcount.
En(Enable):
Thisinputenablesablockfunction.Whenthisinputis “0”,othersignalstotheblockwillbeignored.
Inv(Invert):