The paper describes how to design PROFIBUS-DP intelligent slave station with MCU and SPC3, and discusses the main method in hardware and software design.
本文介绍了应用单片机和SPC3 芯片构建PROFIBUS-DP 智能从站的方法，并给出了硬件和软件的实现方法。
RS232 and PROFIBUS-DP protocol convert interface can embed in the process control equipment as Intelligent Slave Station, that realize many functions as data collect and control.
RS232和PROFIBUS - DP协议转换接口可嵌入现场设备作为智能从站，实现数据采集和控制等多种功能。
PROFIBUS DP is a kind of multi master-slave station structure bus, and the communication between the masters is Token way, and subordination between the master and slaves.
PROFIBUS DP是一种多主从总线，采用主站间按令牌方式、从站和主站间按主从方式进行数据通信的工作方式。
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