Design of Control System for Automatic Production Line of Sweet Potato Powder Based on PLC

This paper analyzes the current status of existing sweet potato powder processing equipment, optimizes existing processing equipment, and designs automated processing equipment based on PLC for sweet potato cleaning, pulping, mixing and milling. The S7-200 series from Siemens is used as the main control unit of this system. The liquid level sensor and temperature controller are added to study the hardware configuration, input/output point allocation and software design method of the control system. The equipment can save time, labor and high efficiency in the processing and processing of sweet potato powder, which is much more efficient than the traditional manual processing method, and also shortens the capital turnover time. The realization of automatic processing equipment for cleaning, pulping, mixing and milling is the basis for intelligent and automated production of sweet potato milling equipment, with high practical value and application prospects.