Comparison of DCS, PLC, and SIS/FCS Control Systems
Comparison of DCS, PLC, and SIS/FCS Control Systems In modern industrial automation, three primary control architectures play distinct but often complementary roles: the Distributed Control System (DCS), the Programmable Logic Controller (PLC), and Safety/Failsafe Systems (SIS/FCS). Understanding their differences helps engineers select and integrate the right technology for process control, discrete machinery, and plant safety.…