本文介绍了一种控制普通阀门的阀门控制器的设计方案,该阀门控制器带有工业现场 总线PROFIBUS-DP 的接口,可以实现阀门的远程控制和网络控制。本文主要的着力点为介绍利用PROFIBUS-DP 专用芯片SPC3 开发PROFIBUS-DP 设备中需要注意的一些问 题,包括硬件接口设计,有关PROFIBUS-DP 规范标准的一些设计要点,以及利用 PROFIBUS-DP 诊断功能的方法。 关键词:阀门;PROFIBUS-DP;SPC3 Abstract:This paper introduces a design of valve controller for normal valves ,which has the interface of PROFIBUS-DP and can let the control distant and networked. The main part of this paper is to describe how to develop PROFIBUS-DP devices using the PROFIBUS-DP ASIC SPC3, including the design of the hardware interface, several keys refer to the PROFIBUS -DP specification, and the way to use the diagnose function. Key:Valve;PROFIBUS-DP;SPC3