Easy Electronics xLogic Micro PLC - AND with Edge Evaluation; Nand

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6.3.2ANDwithedgeevaluation
(SymbolinxLogic)
TheoutputofanANDwithedgeevaluationisonly1if all inputsare1and atleastone inputwas0
duringthelastcycle.
Theoutputissetto1forthedurationofonecycleandmustberesetto0forthedurationofthenextcycle
beforeitcanbesetto1again.
Ablockinputthatisnotused(x)isassigned:x=1.
TimingdiagramofanANDwithedgeevaluation
6.3.3NAND
(SymbolinxLogic)
TheoutputofanNANDfunctionisonly0if all inputsare1,i.e.whentheyareclosed.
Ablockinputthatisnotused(x)isassigned:x=1.