机械专业外文文献翻译@外文翻译--PLC工业PC与DCS的特点与趋势
23页1、外文资料翻译The characteristics and trends of PLC, DCS and industrial PCPLC、工业PC与DCS的特点与趋势At present, widely used in industrial automation systems of the three large industrial PC, DCS and PLC. Here, for their economic and technological standards and development trends described.目前,广泛应用于工业自动化系统的3大件是工业PC、DCS和PLC。在此,对于他们的经济技术水平和发展趋势进行叙述。First, the characteristics and Application of PLC 一、可编程序控制器的特点及应用1.PLC Application1. PLC的应用Early PLC (Programmable Logic Controller, PLC), mainly to replace relay logic
2、control to achieve. With computer technology, communications technology and the rapid development of automatic control technology, the PLC will be the traditional relay control technology and the emerging computer technology and communications technology integration, with high reliability, strong function and flexible, Programming simple, easy to use and a series of advantages, as well as good performance of the industrial environment and control targets of performance in industrial production i
3、n a wide range of applications.早期的可编程序控制器(Programmable Logic Controller,PLC),主要用来代替继电器实现逻辑控制。随着计算机技术、通信技术和自动控制技术的迅速发展,可编程序控制器将传统的继电器控制技术与新兴的计算机技术和通信技术融为一体,具有可靠性高、功能强、应用灵活、编程简单、使用方便等一系列优点,以及良好的工业环境工作性能和自动控制目标实现性能,在工业生产中得到了广泛的应用。1969, the United States Digital Equipment Corporation (DEC) developed the worlds first programmable controller. Early separation from the programmable controller components and small and medium-sized integrated circuit component, the main function previously performed by t
4、he relay is completed sequence control, such as timing. The early 1970s, small size, strong function and cheaper microprocessors used PLC, makes the PLC function has been enhanced significantly. In terms of hardware, in addition to maintaining its original switch modules, has also increased the simulation module, remote I / O modules and special function modules all. In terms of software, easy to use PLC Electric staff in the ladder diagram programming language, in addition to maintaining the or
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