PMC (Process Monitoring and Control) systems are used in vehicle manufacturing to monitor production lines and detect faults. PMC integrates with machines via PLC and displays status across levels from plant to line to station using color-coded boards. It generates reports like stop time summaries and OEE to help managers identify bottlenecks and key control points to improve efficiency. Common PMC architectures involve collecting machine data via PLC and outputting via SCADA software like Rockwell's RTView, Siemens' WinCC, or GE's Cimplicity.