PLC的发展现状及应用前景

 中文字数: 3060,中文页数: 4   英文字数:  1725,页数:6

 自工业控制计算机列入国家计算机系列型谱和发展规划以来，在国家的大力支持下，我国工控机事业获得了迅速发展，在工业控制机开发和产业化及其推广应用方面已取得长足进步。近几年来，计算机、通信、消费电子的一体化趋势日益明显，PLC技术已成为一个研究热点。PLC电气系统在通信、电子、自动化等领域具有无比的优越性,其实时处理能力得到越来越多的重视,关于PLC操作系统的研究正在不断深入。由于PLC技术有着诸多优势和良好的发展前景，越来越多的应用厂商和开发者采用PLC技术方案进行应用开发。
  目前，我国的缩水机电气控制系统普遍采用的是传统的继电器—接触器控制方式。因其所要控制的电机较多所以电路较复杂，在日常的生产作业当中，经常发生电气故障，从而影响生产。另外，一些复杂的控制如：时间、计数控制用继电器—接触器控制方式较难实现，所以，有必要对传统电气控制系统进行改进设计。PLC电气控制系统可以有效的弥补上述系统的这一缺陷。

Since the industrial computer included in the national series of computer-spectrum and development planning, in the country's strong support of China's IPC was the cause of the rapid development in industrial control of development and industrialization of its application has been made substantial progress. In recent years, computer, communications, consumer electronics integration trend has become increasingly obvious, PLC technology has become a hotspot. PLC electrical system in the communications, electronics, automation and other fields have immense advantages, in fact, when handling capacity of more and more attention to research on the PLC operating system is continually deepening. As PLC technology has many advantages and good prospects for development, more and more manufacturers and application developers using PLC technology application development programmes.    Currently, the country's shrinking machine electrical control system is widely adopted in the traditional relay - access control methods. Because of the need to control the electrical circuit more so than the complex, day-to-day production operations, frequent electrical failures, thus affecting production. In addition, a number of complex control such as: time, count controlling relay - contactor control more difficult to achieve, so it is necessary for traditional electric control system to improve the design. PLC electrical control system can effectively compensate for the shortcomings of this system.

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