关于plc控制系统的----外文翻译.doc

At present,the main control way in automation field are rlay control,microcomputer control and PLC control. Compared with the relay control system and the microcomputer control systerm, the PLC control systerm has a series of advantages, such as little work load of designing,installing,wiring and debugging, short cycle of development of working environment and convenient maintenance. Meanwhile, the relay control systerm has already been few used on the machine control systerm is inferior in ability of anti-interference, high in requirement of working environment and long in desigong and developing cycle of the control systerm. So its application has being on deining trnd in the automation conrol field by year.


目前，在自动化领域的主要控制方式是rlay控制，微机控制和PLC控制。 PLC控制体系构建与继电器控制系统和微机控制体系构建，具有一系列优点，如小的设计工作负载，安装，接线和调试，工作环境的发展周期短，维修方便。与此同时，“继电器控制体系已被使用的机器上的控制体系构建是劣势，抗干扰能力强，工作环境的要求高和控制体系构建，在desigong和发展周期长。所以其应用上逐年deining在自动化conrol领域trnd的。