Ladder Diagram of 2 motors running in cyclic order for life time (using RS logix 500)

In rung1, when start push button is pressed and released, it establishes a holding. In rung 2,  holding contact starts timer1 and motor1. When timer1 completes its time, its done contacts changes their positions. Normally close done contact of timer1 opens and motor1 stops. Normally open contact of timer 1 closes and starts timer2 and motor2. When timer2 completes its time, its done contacts changes their positions. Normally close done contact of timer2 opens and motor2 stops. Normally open contact of timer2 closes and resets timer1 and timer2. 

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Posted in: Ladder Diagrams, PLC Based Projects, Projects