【作者】 李晓冬；

【导师】 孙鹤旭；

【作者基本信息】 河北工业大学 ， 控制理论与控制工程， 2005， 硕士

【摘要】 现场总线是20世纪80年代中期在国际上发展起来的,它是安装在生产过程区域的现场设备(或仪表)与控制室内的自动控制装置(或系统)之间的一种串行、数字式、多点、双向通信的数据总线。PROFIBUS作为其中一种国际标准现场总线,以其灵活性、可靠性以及高性能价格比等优点,在全世界范围内都得到了广泛的应用。其中PROFIBUS-DP是一种用于现场设备级控制系统和分散式I/O通讯的协议。 然而,目前市场上PROFIBUS产品主要是西门子等国外公司提供的,国内尚无此类产品,因此开发基于现场总线的低成本智能设备(intelligent Device),降低国内企业的生产成本,提高企业的竞争力成为当务之急。 本文在对PROFIBUS协议简单介绍的基础上,深入研究了IEC61158国际标准、EN50170欧洲标准及Siemens公司的ASIC芯片SPC3的协议规范,在掌握PROFIBUS现场总线技术的基础上提出了利用SPC3芯片开发PROFIBUS-DP智能从站接口的方案,利用微处理器和SPC3协议专用芯片设计了PROFIBUS-DP硬件接口电路,根据SPC3协议开发了接口程序及应用程序,研制出了一种通用的PROFIBUS-DP智能从站信号接口板。并以流量过程控制、I/O开关量控制、电机驱动控制和图像视频控制为对象,利用OPC技术、RS485协议转换技术及研发的PROFIBUS-DP智能从站信号接口板,建立起一套完整的PROFIBUS智能网络控制系统。 最后通过实验证明研发的现场总线接口完全适用于工业控制系统,有着良好的发展前景。更多还原

【Abstract】 PROFIBUS was developed in the world during mid-eighties in 20 centory,it was a serial,digital,multi-point and double-derection data bus which was installed between field device of industrial area and auto-control device of control centre .As a kind of international standard field bus ,PROFIBUS is widely used in the world depending on its flexibility and reliability .PROFIBUS-DP is a protocal being used in field device control system and dispersal I/O communication.Product of PROFIBUS of present maket,however,is produce by foreign company such as Siemens.There is no such product inland,so it is nessissary to develop low-cost intelligent device based on field bus in order to reduce production cost and improve competence of our enterprise.This paper takes deep research on IEC61158 international standar,EN50170 European standard and the protocol rule of ASIC chip SPC3 from Siemens on the base of simple introduction about PROFIBUS protocol.The paper presents a scheme to develop PROFIBUS-DP intelligent slave station interface using SPC3 on the base of mastering PROFIBUS technique,design the PROFIBUS-DP hardware circuit using SPC3 and microprocessor,develop program of interface and application according to SPC3 protocal,manufacture a universal PROFIBUS-DP intelligent slave interface board.Then a complete PPROFIBUS intelligent networked control system was set up using process control,I/O control,motor drive control and video control as object ,RS485 protocal transition technique and intelligent slave interface board mentioned above.At last ,the developed field bus interface is adaptive to indusrial control system which is proved by experiment and it has a good prospect更多还原