A Personal Update…
A Personal Update and What’s Next It’s been a little while since I’ve provided any meaningful updates on the website, particularly when it comes to the development and release of…
SIMATIC AX Explained: What It Is, How It Differs From TIA Portal, And How To Prepare Without A Licence
SIMATIC AX is one of the clearest signs of where Siemens wants PLC engineering to go. The more useful questions are what AX actually changes, where it still falls short…
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…
How To Structure A PLC Project: From Documentation To Commissioning
PLC projects usually become difficult when the engineering development sequence is weak. If development requirements are handled out of order, the code may still run, but the project becomes harder…
Where State Machines Pay Off in PLC Projects
State machines are most useful when they make behaviour easier to see, easier to support, and easier to standardise. The real challenge is not understanding the idea. It is knowing…
Inputs And Outputs Explained
Inputs and outputs are where PLC software meets the real world. This article explains how digital inputs, digital outputs, analog inputs, and analog outputs work in practical terms, without assuming…
Understanding Scan Cycles
PLC code starts making sense once you understand the scan cycle. This article breaks down how cyclic, interrupt, and event tasks interact, where async fits in, and why scan time,…
When to Hire a PLC Consultant vs Training Your Team
When should you hire a PLC consultant, and when is it better to train your own team? This article gives engineering managers a practical framework for weighing cost, timeline, risk,…
Troubleshooting PLC Systems: A Systematic Approach to Finding Faults
Learn systematic PLC troubleshooting methods that work across all platforms. Stop random fixes and start solving faults efficiently with proven diagnostic techniques.
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…