Light Traffic PLC

Light Traffic (Mechatronics Automation Project) PLC

 Ladder logic is an instruction standard used in automation technology. Basically a ladder diagram is a virtual relay logic circuit.
  I wrote a ladder diagram for a traffic light, and tested it on my LG PLC.

Input - output setting:

START (P00)

STOP (P01)

PEOPLE CROSS (P02)

PEOPLE CROSS (P03)

SENSOR 1 (P04)

SENSOR 2 (P05)

SENSOR 3 (P06)

SENSOR 4 (P07)

ALARM (P44)

PEOPLE CROSS (P45)

PEOPLE CROSS (P45)

RED 1 (P40)

RED 2 (P42)

GREEN 1 (P41)

GREEN 2 (P43)