PLC programming basics

What you'll learn

1. 1

   Imagine a PLC is like a robot brain that controls machines in a factory. 🏭

2. 2

   Build a simple PLC program: when a push button (input) is pressed, a lamp (output) turns on.

3. 3

   Let's write a program for a conveyor belt: if a box is detected at sensor A, start the belt motor.

4. 4

   In a PLC, what does the 'scan cycle' mean?

5. 5

   Now you try: write a program that turns on a green light when a temperature sensor reads above 30°C.

6. 6

   What is the correct order of a PLC scan cycle?

7. 7

   If a PLC program has the instruction 'IF button = ON THEN motor = ON', what happens when the button is OFF?