Using LLMs to generate IEC 61131-3 Structured Text for PLCs: verification gates, simulation, IEC 61508 constraints, and where it is unsafe. Reference pipeline.
EMQX 6.3 is the new LTS. Strict MQTT parsing, Feature Gates, locked Prometheus and ACL defaults: every breaking change vs 5.8 LTS and a safe upgrade plan.
CODESYS 4 1.0 ships a browser-based, Git-friendly PLC IDE on the same compiler and runtime. What changes vs CODESYS 3, what is missing, who should switch.
Why software-defined manufacturing and the virtual PLC are reshaping the plant floor in 2026: containerized control, real-time Linux, IEC 61499, and vendor moves.