Abstract: Fieldbus have been an important question for study in the field of international industry control-system.Compare witch DCS, FCS is more reliable , high efficiency and low cost, etc.

• 摘要：现场总线技术已成为国际工业控制领域一个重要的研究方向，与集散控制系统相比，具有可靠、高效、低成本等诸多优势。