1、 济南大学泉城学院 毕业设计外文资料翻译 题 目 可编程控制器技术讨论与未来发展 专 业 电气工程及其自动化 班 级 电升 11Q1 学 生 秦伟 学 号 20113024045 指导教师 李聪 二一 三 年 四 月 二十三 日 济南大学 泉城学院 毕业 设计 外文资料翻译 - 1 - PLC technique discussion and future development K. Begain, M. Ermel Chair for Telecommunications, Dresden University of Technology,01062 Dresden, Germany Ab
2、stract: Programmable Logic Controllers (PLC), a computing device invented by Richard E.Morley in 1968, have been widely used in industry including manufacturing systems, transportation systems, chemical process facilities, and many others. At that time, the PLC placed the hardwired logic with soft-w
3、ired logic or so-called relay ladder logic(RLL), a programming language visually resembling the hardwired logic, and reduced thereby the configuration time from 6 months down to 6 days Moody and Morley,1999.Although PC based control has started to come into place, PLC based control will remain the t
4、echnique to which the majority of industrial applications will adhere due to its higher performance, lower price, and superior reliability in harsh environments. Moreover, according to a study on the PLC market of Frost and Sullivan 1995, an increase of the annual sales volume to 15 million PLCs per
5、 year with the hardware value of more than 8 billion US dollars has been predicted, though the prices of computing hardware is steadily dropping. The inventor of the PLC, Richard E Morley, fairly considers the PLC market as a 5-billion industry at the present time. Key Words： PLC ， performance ， mar
6、ket 1 Introduction Along with the development of the ages, the technique that is nowadays is also gradually perfect, the competition plays more more strong； the operation that list depends the artificial has already cant satisfied with the current manufacturing industry foreground, also cant guarant
7、ee the request of the higher quantity and high new the image of the technique business enterprise. The people see in produce practice, automate brought the tremendous convenience and the product quantities for people up of assurance, also eased the personnels labor strength, reduce the establishment
8、 on the personnel. The target control of the hard realization in many complicated production lines, whole and excellent turn, the best decision etc., well-trained operation work, technical personnel or expert, governor but can judge and operate easily, can acquire the satisfied result. The research target of the artificial intelligence makes use of the calculator exactly to carry out, imitate these intelligences
