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Ladder logic PLC, elvevator An elevator has three floors (basement, first floor and second floor). Three...

Ladder logic PLC, elvevator

An elevator has three floors (basement, first floor and second floor). Three digital inputs which stands for a sensor at each floor. Two outputs which makes the elevator either go up or down. Three pushbuttons which are pressed on a HMI panel. The elevator is on the basement and you press PB2 and the elevator goes straight to the second floor. The elevator is on the basement and you press first PB2 and then PB1. The elevator should make the first stop at the first floor then make a stop at the second floor. Same logic when the elevator goes down

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