10 PLC Basics Every Beginner Must Know! If you’re starting your journey in PLC Programming and Industrial Automation, mastering these 10 fundamentals will make learning much easier. This infographic covers the core concepts every automation engineer should understand, including the PLC Scan Cycle, NO & NC Contacts, Start/Stop Logic, Set & Reset Instructions, Timers, Counters, Memory Bits, Analog Signals (4–20 mA), Interlocks, and Alarm Handling. These building blocks are used in almost every PLC program, whether you’re working with Siemens, Allen-Bradley, Mitsubishi, Delta, Omron, Schneider, ABB, or any other PLC platform. A strong understanding of these basics will help you troubleshoot machines faster, write better ladder logic, and confidently move toward advanced automation projects. Save this post for future reference, share it with your engineering friends, and follow this page for more practical Electrical, Instrumentation, PLC, DCS, SCADA, and Industrial Automation learning content. Every expert was once a beginner—keep learning and keep growing! Post navigation P&ID vs PFD – Do You Know the Difference?
