Parts sorting and adjustment automatic production line control system based on PLC and WinCC

The present study presents the design and implementation of a PLC and WinCC based automatic production line control system for parts sorting and adjustment. Four Siemens S7-1200 PLCs are utilized as the primary controllers, while a computer equipped with WinCC software serves as the supervisory control unit for system monitoring and operation. The system consists of four stations: Appearance defect detection station, height and weight detection station, direction adjustment station, and parts sorting station; each controlled by an individual PLC. It successfully incorporates features such as automatic/manual mode switching, emergency stop functionality, status display capabilities, and efficient human-machine interaction. Upon thorough verification testing, the system exhibits remarkable stability, user-friendly operation interface, and robust real-time performance.