现场总线是连接智能现场设备和自动化系统的数字式、双向传输、多分支结构的通信网络,是过程控制技术、自动化仪表技术、计算机网络技术三大技术发展的交汇点,将带来控制系统的一场大变革。
随着单片机技术和PC机技术在工业控制中的广泛运用,单片机和PC机之间的数据通信也已成为现代工业控制系统中的一个重要研究课题,特别是在进行远程操纵控制时,PC机和单片机远程通信更是工作的前提基础。
关键词: 现场总线 分布式现场总线控制系统 单片机 串行通讯
Fieldbus is a kind of full degetal,bi-directional and multi-station communication net between field intelligent instruments and automation control systems in industry.It is a convergence of processing control technology,industrial automation instrument technology and computer network technology.Which will lead to occur a renovation in control systems.
With the wide application of single—chip computer and computer in the industrialcontrol field,the communications between them have become an important research subject inmodem industrial control system . Especially,in the case of remote control, the remote
Keywords : Fieldbus FCS MCS-51single-chipcomputer Serialcommunication