现场总线具有高性能和高可靠性,特点现已形成国际标准,现场控制总线系统比传统的集散控制系统的能力好,准确度高,误码率低。 关键词: 现场总线 ;现场控制系统;集散控制系统 The Differences of FCS and DCS Abstract : The field bus technology has become an international standard due to its high capability and high reliability and has many successful applications . FCS has a better capability as compared to DCS used as a conventional method .It is high in accuracy and low in error. Key words: field bus ; FCS; DCS