Introducing CAN applied in a FCS, the design and achieving of CAN device is expounded, and the design of FCS based on CAN technology is also presented.

• 本文通过介绍CAN（Controller Area Network,控制器局域网）总线技术在FCS（Fieldbus Control System 现场总线控制系统）中的应用,阐述了CAN总线设备的设计与实现,并简要说明了如何基于CAN总线来设计现场总线控制系统。