Configuration Technology of Mine-used PLC Control Program

For problems of difficult field programming and poor inheritance ability of mine-used PLC program, the paper proposed a configuration technology of mine-used PLC control program based on ladder diagram language, and introduced basic principle and realization method of the technology taking control program of double-motor and double-speed driven scraper conveyor as an example. The technology can standardize mine-used PLC control program, thus users can change some references on configuration interface of human-machine interface to meet field requirements. The practice showed that the technology is simple in programming and improves reliability and friendly performance of control program.