基于PROFIBUS总线的控制器智能从站设计
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摘要
针对控制器智能化、网络化的发展趋势,为了使具有RS485/RS232接口的控制器方便地接入PROFIBUS现场总线网络,基于C8051F020单片机,研制了以西门子公司的协议芯片SPC3为基础的PROFIBUS-DP从站。首先介绍了PROFIBUS通信的基本原理,然后详细论述了硬件的几个组成部分的功能,对软件的整体结构及部分模块进行了论述,同时还给出了抗干扰的几种措施,最后给出了实验结果。实验结果表明设备间通信正常,可以应用于设备数据采集、执行和控制等,实现RS485/RS232设备与PROFIBUS现场总线的无缝互联。
With the development of intelligence and network,and to access controller with RS485/RS232 interfaces to PROFIBUS field bus networks expediently,a PROFIBUS-DP slave station based on the C8051F020 MCU by using the Siemens protocol chip SPC3 is developed.The fundamental of PROFIBUS is introduced first,then the functions of the hardware are discussed in details,and the configuration and some modules of the software are also exposited.Several anti-jamming measures are presented as well.Finally,the experiment result given out indicats that the normal communications are achieved between equipments,and the device can be used on equipments for data collection,control and implement,thus the jointless interconnection between RS485/RS232 equipment and PROFIBUS is realized.
With the development of intelligence and network,and to access controller with RS485/RS232 interfaces to PROFIBUS field bus networks expediently,a PROFIBUS-DP slave station based on the C8051F020 MCU by using the Siemens protocol chip SPC3 is developed.The fundamental of PROFIBUS is introduced first,then the functions of the hardware are discussed in details,and the configuration and some modules of the software are also exposited.Several anti-jamming measures are presented as well.Finally,the experiment result given out indicats that the normal communications are achieved between equipments,and the device can be used on equipments for data collection,control and implement,thus the jointless interconnection between RS485/RS232 equipment and PROFIBUS is realized.
引文
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[2]李明强,刘小河,田雨聪.PROFIBUS-DP智能从站的设计[J].电气技术,2015,16(4):77-80.
[3]夏琳琳,邱超,富兆龙,等.基于VPC3协议芯片的PROFIBUS-DP接口适配卡的设计研究[J].化工自动化及仪表,2012,39(10):75-79.
[4]房立镇,程广河,吕国华.基于ARM的PROFIBUSDP通信模块的研究与设计[J].信息技术与信息化,2010(5):39-40.
[5]段旭良.基于DSP嵌入式以太网通信系统的设计[D].哈尔滨:哈尔滨工程大学,2009.
[6]陈开.工业以太网的节点开发及通信协议研究[D].武汉:华中科技大学,2009:2-3.
[7]何琼,陈铁,程鑫.基于以太网硬协议栈的数据采集节点[J].仪表技术与传感器,2013(2):21-23.
[8]Shao J P,Wu K J,Sun G T.Design of an ethernet data transmission system based on W5300[C]//International Conference on Computer Science and Technology.Kunming,2014.
[9]阳宪惠,魏庆福,徐用懋.现场总线技术及其应用[M].北京:清华大学出版社,1999.
[10]潘琢金,施国君.C8051FXXX高速SOC单片机原理及应用[M].北京:北京航空航天大学出版社,2002.
[11]候维岩,费敏锐.PROFIBUS协议分析和系统应用[M].北京:清华大学出版社,2006.
[12]SPC3 Hardware Description.Siemens Version:1.4Date:2005/12
[13]SPC3and DPS2 User Description.Siemens Version:1.0Date:2003/04/09
[14]王永华.现代电气控制及PLC应用技术[M].北京:北京航空航天大学出版社,2003:60-97.
[15]Petrovic'I,Vinkovic'M.Usage and advantages of Profibus communication protocol for industry[J].Tehnicˇki Glasnik,2014,8(1):1-4.
[16]Xia L L,Qiu C,Fu Z L,et al.Adapter card design for profibus-DP interface based on VPC3 protocol chip[J].Control and Instruments in Chemical Industry,2012,39(10):1323-1327.