In this video, I design and build a PLC-controlled packaging machine simulation featuring a sequential four-cylinder pneumatic system. We track a complete assembly line cycle from start to finish: Cylinder A feeds the box, Cylinder B clamps it in place, Cylinder C operates as a vertical box-lid pressing ram, and Cylinder D acts as a horizontal ejector arm. I break down the entire automation process step-by-step, explaining how to map hardware inputs/outputs, resolve signal overlap conflicts across multiple control groups using internal memory bits, and program the system with industrial ladder logic. This tutorial is perfect for engineering students, mechatronics hobbyists, and anyone looking to master advanced sequential pneumatic controls in PLC automation.
