PLC Ladder Logic Tutorial: Creating a Traffic Light Sequence with Timers

In this tutorial, we dive into one of the most common PLC programming exercises: The Traffic Light Control System. We will learn how to use cascading timers to create a precise sequence of lights that repeats automatically.

What you will learn:

Timer Logic (TON): How to set up multiple timers to control duration.

Sequencing: configuring the Green (60s), Amber (3s), and Red (20s) transition.

Auto-Reset: How to make the system loop indefinitely without manual input.

System Requirements:

Green Light: 60 Seconds

Amber Light: 3 Seconds

Red Light: 20 Seconds

Continuous Cycle

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Видео PLC Ladder Logic Tutorial: Creating a Traffic Light Sequence with Timers канала Mohammad Nasir