PLC is a general-purpose industrial automatic control device developed with microprocessor as the core,which integrates computer technology,automatic control technology and communication technology.It has high reliability,small size,strong function,simple program design,flexibility and universal It has a series of advantages such as convenient maintenance,so it has a wide range of applications in metallurgy,energy,chemical industry,transportation,electric power and other fields,and has become one of the three pillars of modern industrial control(PLC,robot and CAD/CAM).
PLC是以微处理器为核心,综合了计算机技术、自动控制技术和通信技术发展起来的一种通用的工业自动控制装置,具有可靠性高、体积小、功能强、程序设计简单、灵活通用及维护方便等一系列的优点,因而在冶金、能源、化工、交通、电力等领域中有着广泛的应用,成为现代工业控制的三大支柱(PLC、机器人和CAD/CAM)之一。
1963 Press Photo Theodore C. Sorensen Kennedy advisor
1960 Press Photo Sorensen Family Theodore
1964 Press Photo Theodore c. Sorensen Johnson Kennedy
Stone Cold Dead, Richard Crenna, Linda Sorensen — rare
Belinda J. Montgomery Paul Williams Alberta Watson Dale
1941 Press Photo Henry Ford Harman Sorensen
1961 Press Photo Theodore Chaikin “Ted” Sorensen
1946 Press Photo Charles Sorensen Willys Overland Motor