分布式控制系统dcs外文翻译(编辑修改稿)

分布式控制系统dcs外文翻译(编辑修改稿)内容摘要：

ol (DDC) feature of work nodes. To set the general scene in a DCS I / O controllers, to share the entire system I / O and control functions. This site can be avoided due to a failure caused by the failure of the entire system, improve system reliability, the site also allows sharing of data acquisition and control functions, will help improve overall system performance. DCS operator station is run operation to deal with all the humanmachine interface (HMIHuman Machine Interface, or operator interface) function of work nodes. DCS engineer station is offline configuration, the system configuration work, and online monitoring, control, maintenance of the work node, and its main function is to provide to the DCS configuration, software configuration tool (ie, the configuration software) and running online in real time DCS DCS work to monitor the operation of each node, the system engineer can engineer station to adjust the system configuration settings and some system parameters, the DCS at any time under the best working condition. And centralized control systems, are required to have all of the DCS system configuration functions, it can be said, no system configuration functions of the system can not be called as a DCS. DCS since its inception in 1975, has already experienced twenty years of development. In two decades, DCS system architecture although there is no significant change, but through constant development and improvement of its functionality and performance have been a huge increase. In general, DCS is toward more open, more standardized product in the direction of development. As the field of process automation puter control system, the traditional DCS is only a narrow concept. If only the production process that DCS automation system, which will lead to wrong conclusions, because the meaning of the puter control system has been greatly expanded, and it includes not only the DCS in the past included a variety of content, but also drill down to the each site measuring equipment, implementing agencies, upwards to the production management, all aspects of business. Traditional DCS now only refers to this part of the production process control automation, and industrial automation system concept, should be targeted to enterprisewide solution, total solution level. Only from this perspective to ask questions and solve problems, to really play the puter automation of its role. DCS has the following characteristics: (1) high reliability. DCS system to control the spread of the puter implementation, the system uses faulttolerant design of the structure, so a puter system malfunction will not cause the loss of other functions. In addition, each puter system, the tasks undertaken by relatively simple functions can be used for the need to achieve a specific structure and special puter software, so that the reliability of each puter system has also been improved. (2) open. DCS an open, standardized, modular and serial design, the system means each puter using the LAN munication, to achieve information transmission, when the need to change or expand the system functionality can be added easily connected to a puter system munication work or Remove from the work, almost does not affect the work of other puter systems. History of development of DCS DCS Distributed Control System is the abbreviation of (Distributed Control System), automation industry in the country is also known as distributed control system. It is a process by the process control level and the position of monitoring level munications work as a link to the multilevel puter systems, integrated puter (Computer), munication (Communication), display (CRT) and control (Control) and other 4C technology, The basic idea is decentralized control, centralized operations, hierarchical management, flexible configuration, easy configuration. ) Its development can be divided into three stages. Stage :19751980, during this period the technical characteristics of distributed control system as follows: 1) using microprocessorbased control unit, to achieve decentralized control, a wide v。