Journal of Engineering Research

In modern manufacturing, improving the efficiency of automated production lines has become an important means for enterprises to enhance their competitiveness. As the core device of automated control, the performance and application strategies of Programmable Logic Controllers (PLCs) directly affect the operational efficiency of the entire production line. This paper focuses on the research of key technologies for improving the efficiency of PLC-based automated production lines, with emphasis on analyzing the technical paths and implementation methods of PLC control system optimization, data collection and processing, fault diagnosis and maintenance, as well as human-machine interface design. Verified by practical cases, these key technologies can effectively improve production cycle time, reduce fault downtime, and enhance overall system stability. Integrating advanced control algorithms with informatization integration represents a key direction for promoting the further development of PLCs in the field of automation.

PLC; Automated production line; Efficiency improvement; Control system; Fault diagnosis