IEC 61499 vs IEC 61131-3: Distributed Control for Industry 4.0 (2026) Posted by By MPRAUTO MPRAUTO July 8, 2026Posted iniiotNo Comments IEC 61499 vs IEC 61131-3 compared: event-driven function blocks vs scan-cycle PLC logic, portability, distribution, tooling, and a decision matrix for modern control.