基于PLC电梯控制系统设计副本.docVIP

基于PLC电梯变速控制系统设计 摘 要 随着现代社会的迅速发展,微电子技术和计算机技术也随之迅速发展.当前数字电器系统的设计正朝着速度快、容量大、体积小、重量轻的方向发展。其中，有着代表性的是日趋进步和完善的PLC设计技术。PLC(即可编程控制器)在工业控制领域内得到十分广泛的应用。PLC是一种基于数字计算机技术、专为在工业环境下应用而设计的电子控制装置，它采用可编程序的存储器，用来存储用户指令，通过数字或模拟的输入\/输出，完成一系列逻辑、顺序、定时、记数、运算等确定的功能，来控制各种类型的机电一体化设备和生产过程。 PLC的设计和开发，已经有多种类型和款式。传统的PLC各有特点，它们适合在现场做手工测量，要完成远程测量并要对测量数据做进一步分析出来，传统PLC是无法完成的。然而基于PC通信的PLC，既可以完成测量数据的传递，又可借助PC，做测量数据的处理。所以这种类型的PLC无论在功能和世界应用上，都具有传统PLC无法比拟的特点，这使得它的开发和应用具有良好的前景。 关键词PLC；交通控制自动化Based on the PLC elevator speed control system design With the rapid development of modern society, microelectronics and computer technology has developed rapidly. The design of the current digital electrical system is moving fast, large capacity, small volume, light weight and direction. Among them, a representative of the further improvement of PLC design technology. PLC (programmable controller) are very widely used in the field of industrial control. PLC is an electronic control device of a specially designed for applications in the industrial design environment technology, based on a digital computer, it uses programmable memory, used to store user instructions, through digital or analog input and output, complete a series of logic, sequence, timing, counting, operations and other functions determined, electromechanical integration of equipment and production processes to control various types of. The design and development of the PLC, there have been many types and styles. Traditional PLC have different characteristics, they are suitable for manual measurement on the spot, to complete the remote measurement and to do further analysis on the measured data, the traditional PLC is unable to complete the. However, PC communication based on PLC, which can transmit the measurement data, and with the aid of PC, do the processing of measured data. So this type of PLC, both in function and in the world of application, has the characteristics of the traditional PLC can not match, which makes its development and applicati