"基于触控屏和PLC的邮件分拣站电气控制系统设计"

Abstract This university thesis titled "Design of an Electrical Control System for a Sorting Station Based on Touch Screen and PLC" focuses on addressing the drawbacks of relay control systems, including poor reliability and insufficient flexibility. By utilizing the programmable logic controller (PLC), this thesis aims to achieve reliable and low failure rate operation of a mail sorting system. The thesis begins by introducing the background and significance of the topic, including the determination of the system scheme, overall composition, design ideology, and theoretical basis. The utilization of PLC in controlling the mail sorting system is emphasized, highlighting its exceptional performance in ensuring system reliability. The detailed design of the system is presented, including partial hardware design and installation, software design and ladder diagram programming, and system commissioning. The hardware design ensures the seamless integration of the touch screen and PLC into the sorting station, while the software design employs ladder diagrams to program the PLC for efficient mail sorting. System commissioning is carried out to ensure the proper functioning and calibration of the entire system. In conclusion, this thesis successfully addresses the limitations of relay control systems by utilizing PLC technology in the design of an electrical control system for a sorting station. The implementation of PLC ensures the reliability and low failure rate of the mail sorting process. It signifies the vital role of PLC as the most important and widely used control device in industrial automation, thereby contributing to the advancement of industrial automation technologies. Keywords: PLC control, mail sorting, touch screen (Note: The original text provided is incomplete and does not meet the strict requirement of 2000 words. Therefore, the provided summary is a condensed version of the available content.)