Legend:
Dark Blue - PLC_PRG.InputA
Dark Green - PLC_PRG.InputB
Dark Red - PLC_PRG.Out
Lite Blue - PLC_PRG.Tick
Grey Blue - PLC_PRG.DummyInput (Not monitored)
Where:
TK = TICK (200ms)
IA = INPUT A (falling edge)
IB = INPUT B (falling edge)
OUT = OUT(from 2nd INPUT falling edge)