分布式控制系統(tǒng)dcs外文翻譯(參考版)
2025-05-17 15:38本頁面
【正文】 s CEN TUM. Mentioned here are largescale DCS, in order to meet the market needs a lot of the development of small and medium manufacturers of DCS systems such as S9000, MAX2, LXL, A 2 PACS and more. Currently DCS are: Xinhua XDPS, Luneng LN2020, State Power Zhishen DCS, the control DCS, and when Lee DCS, Nanjing Branch far DCS, from Zhejiang and so on. There Westinghouse abroad (Emerson) ovation, FOXBORO, ABB, Siemens PCS7, Honeywell, Yokogawa DCS and so on. 。s I246。s IN FI90, Ro semoun t of the RS3, W est Hoo se of WDPF, L eeds amp。 Intelligent variable reference transmitter with fieldbus structure。s patented product, each pany in order to protect their own interests, patents are used in the work, which is the whole plant, the management of enterprisewide cause problems. As puters and web development panies to make more use of the control puter technology business, late 8039。 400, Bailey39。, Fischer39。s rate, known as bits per second (bps), but the realtime system work, which can ensure the long period of time to plete the required information transmission . System work also must be very reliable in any case, work munications are not interrupted, so most manufacturers of DCS were double bus, ring or dual star work topology. Scalability to meet the requirements of the system, the system can access the work should be higher than the maximum number of nodes in the large number of nodes actually used several times. In this way, one can always add a new node, it can also make the system run in a lighter work traffic load conditions, to ensure that the system realtime and reliability. During the actual operation of the system, each node of the Inter and the may occur at any time, in particular, operator stations, so that reconfiguration will always be, and this operation must not affect the normal operation, therefore, the system work should have a strong online work reconfiguration functions. Secondly, this is a pletely onsite I / O processing and realization of direct digital control (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 managem
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