Finite Element Analysis (FEA) in CAD enables engineers to simulate and analyze mechanical designs for stress, vibration, and thermal performance. Integrated with CODESYS, FEA-validated designs can be paired with IEC 61131-3-compliant control systems (LD, FBD, ST, IL, SFC) for mechatronic applications. CODESYS supports real-time control, simulation, and protocols like EtherCAT, ensuring seamless implementation of FEA-optimized designs in automation systems, enhancing reliability and efficiency in robotics, automotive, and industrial machinery.