20 SCL Execution Order Questions
A practical quiz-based SCL article with 20 execution-order questions covering overwrites, timers, state logic, feedbacks, and data typing, designed to help PLC engineers read structured text in the same order…
State Machines in PLC Programming: Designing Behaviour Instead of Logic
State machines are one of the most powerful yet misunderstood design patterns in PLC programming. Instead of building control logic around scattered conditions and boolean flags, state-based design focuses on…