Learn PLC Programming Without a PLC Using OpenPLC and Arduino Uno (Slave Device)

In this video, you will learn how to program PLC ladder logic without using a physical PLC. Using OpenPLC and an Arduino Uno, we simulate real PLC behavior, including input and output control, latching, timers, and blinking sequences. This setup is ideal for beginners who want to learn PLC programming, as well as for engineers who want to test and debug ladder logic using low-cost hardware. You will also see how to configure OpenPLC Runtime, connect Arduino as a slave device, and monitor I/O in real time. Topics covered in this video: • OpenPLC Runtime and Editor overview • Using Arduino Uno as a PLC slave device • Ladder logic with latch and TON (On-Delay Timer) • Real-time monitoring and debugging • PLC learning without a physical PLC This approach is perfect for learning, simulation, and prototyping before moving to an actual PLC system. Example code: https://yaseralie.github.io/OpenPLC_Arduino/