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1 引言 DCS(分散式控制系统)是当前电厂使用较为广泛的控制系统,它以强大的功能优势取代了常规仪表。然而面对快速发展的计算机技术,在未来设计的新型发电厂中,控制技术又将向何处发展,现场总线(Fieldbus)技术是否是未来控制技术的大趋势,DCS是否将被现场总线控制(FCS——Fieldbus Control Sys-tem)所取代。本文围绕这些问题对FCS的现状与未来进行讨论。2 现场总线现状介绍现场总线是在过程领域的主要自动化装置和控制领域的自动化设备之间的一种串行的、数字的数据通信链路。它加强了生产和过程领域的基本控制设备(即现场级设备)之间以及与更高层次自动控制领域的自动化控
1 Introduction DCS (Distributed Control System) is the current control system used extensively in power plants, which replaces conventional meters with powerful functional advantages. However, in the new power plant designed in the future, in the face of the rapid development of computer technology, where will control technology be developed? Whether the fieldbus technology is the future trend of control technology and whether DCS will be controlled by the fieldbus FCS - Fieldbus Control Sys-tem). This article discusses the current status and future of FCS around these issues. 2 Fieldbus present situation introduction The field bus is a kind of serial, the digital data communication link between the main automation devices in the process field and the automation equipment in the control domain. It strengthens the automation of control between basic control equipment (ie field-level equipment) in the production and process areas as well as at higher levels of automation