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编号无锡太湖学院毕业设计（论文）相关资料题目： 自动排向机改造研究石墨舟仓结构设计信机 系 机械工程及自动化专业 学 号： 0923272 学生姓名： 支俊 指导教师： 宋广雷 （职称：副教授 ）2013年5月25日目 录一、毕业设计（论文）开题报告二、毕业设计（论文）外文资料翻译及原文三、学生“毕业论文（论文）计划、进度、检查及落实表”四、实习鉴定表无锡太湖学院 毕业设计（论文）开题报告题目： 自动排向机改造研究 石墨舟仓结构设计 信机 系 机械工程及自动化 专业 学 号： 0923272 学生姓名： 支俊 指导教师： 宋广雷 （职称：副教授 ）2012年11月12日课题来源:本课题来源于企业横向研究项目，针对现有二极管针脚排向机的不足和缺陷，提出改进措施，加强在线检测，减少人工，包括机械系统和电控系统等。科学依据:1、课题研究的现状及发展趋势二极管又称晶体二极管，简称二极管。它是一种具有单向传导电流的电子器件。在半导体二极管内部有一个PN结两个引线端子，这种电子器件按照外加电压的方向，具备单向电流的转导性。一般来讲，晶体二极管是一个由p型半导体和n型半导体烧结形成的p-n结界面。在其界面的两侧形成空间电荷层，构成自建电场。当外加电压等于零时，由于p-n结两边载流子的浓度差引起扩散电流和由自建电场引起的漂移电流相等而处于电平衡状态，这也是常态下的二极管特性。二极管的构造和符号：二极管的生产工艺：焊接酸洗模压印字机包外拣包装其中焊接又可分为排向、装填、进炉、出炉转换，利用焊片通过一定温度，使芯片与金属引线连接，形成欧姆触角。酸洗是利用化学品将晶体表面加以侵蚀，使P-N接面呈现正角比例以获得最佳的电性品质。于晶片表面形成SiO2，以达到绝缘目的。模压是使管芯与外界环境隔离，避免有害气体侵蚀，并使表面光洁和具有特定的几何形状，起到保护管芯、稳定表面、固定管芯内引线，提高二极管机械强度的作用。排向机是二极管生产过程中的关键设备，可以将二极管针脚有序地排列到石墨舟中，进行后续工序的加工。现有排向机劳动强度大，用工人数多。改善后的排向机加强了在线监测，加入了PLC控制系统，完成了生产的自动化，大大提高了二极管的生产效率，减少了人工。现有排向机的构造：如图，针脚通过人工方式在料参中进行震动，并有序向上移动，然后来到针脚分流装置中，进行向下移动，针脚分流装置可以浆成批的运输过来的二极管针脚进行分流成为十股针脚，一列一列进行向前移动，移动至挡板处。其中弯的或者残缺的针脚将被挡板挡住，并流入下料盘中，质量良好的针脚将有序的一个个竖立地流入挡板下面的槽中，在整个机器的震动中来到气缸，气缸通过左右移动将一排排针脚准确的安放到上模中，上模与石墨舟通过定位销进行了定位，每一个孔都准确对齐，针脚在气缸的左右移动中对齐地放入上模，再由经上模准确的放入石墨舟中，整个机器由旁边的控制台进行控制。然而，旧版的排向机有一定的不足如下：（1） 在针脚分流装置中，虽然整个装置进行过周密的计算，但是针脚分流仍旧是按照一定的概率进行等量分流的，可能会产生某一列或者几列在分流过程中针脚出现空缺的状况，这一问题在流水线上继续作业会使石墨舟上出现一列或者几列的空缺，影响生产效率；（2） 在料参和下料盘中的针脚都需要通过人为的进行补充以及放回，增加了工人的负担，并且在一定程度上降低了生产效率，也无法自动排出质量有问题的针脚；（3） 在气缸出没有检测针脚是否空缺的装置，如果在气缸前有针脚卡主或者堵塞，有可能出现一列或者几列的针脚空缺情况，使进行排列后的石墨舟可能出现不足或者空缺的情况；（4） 上模处没有检测石墨舟是否每一个孔里面都装入了针脚的传感器及控制装置，无法检测是否没个石墨舟工序后针脚是否填满； 石墨舟在填满后需要通过人工进行移动，并补充新的空的石墨舟，在日生产量巨大的工厂中，大大影响了生产的效率，为企业带来不必要的损耗。2、课题研究的目的和意义排向机是二极管生产过程中的关键设备，可以将二极管针脚有序地排列到石墨舟中，进行后续工序的加工。改善后的排向机弥补了现有排向机的不足和缺陷。在在线监测方面得到了加强，原本在生产线上掉落的针脚需要工人放回料斗，经过改善，可自行回收进入料斗。改善前石墨舟针脚排满后需人工取走，再放上空的石墨舟，改善后由PLC控制自动补给石墨舟，从而减少了人工，提高了二极管生产效率，增加了经济收益。另一方面，本次的课题研究是大学四年所学知识的一次综合运用，涉及的学科有机械制图、机械制造技术基础、机电一体化系统设计、液压与气压传动、机器人技术及其应用等。研究这个课题，不仅让我们再次复习了专业知识，也让我们认识到了理论知识与实际生产的关系。实际生产离不开理论知识的支持，理论知识可以为实际生产提供技术保障，对技术的改革发展更是起到决定性作用。而且，这次实际生产的案例用理论知识来改进的例子让我们为今后的工作提供了宝贵的经验。研究内容：排向机是二极管生产过程中的关键设备，可以将二极管针脚有序地排列到石墨舟中，进行后续工序的加工，劳动强度大，用工人数多。本课题来源于企业横向研究项目，针对现有二极管针脚排向机的不足和缺陷，提出改进措施，加强在线检测，减少人工。包括机械系统和电控系统等。本课题设计内容以机电气一体化技术为核心，整机采用PLC控制，要求和原设备无缝衔接，学生需掌握机械工程及自动化专业相关基础理论本子课题主要完成石墨舟仓结构设计。拟采取的研究方法、技术路线、实验方案及可行性分析（1）实验方案：由于现有排向机有无法自动检测针脚是否装满，石墨舟需要人工搬动，下料盘和料参之间没有互通装置等特点，我们研究并设计了新的排向机方案如图，震动料盘连接输送带机器支架，上面有光电传感器连接至PLC控制器，检测针脚是否装满，针脚输送器前端连接石墨舟及其家具堆叠起来的器具，每堆约10-15层，可以自动更替，整个过程由PLC控制台控制。如此，我们实现了PLC气动控制与机械传动相结合的新的排向机的初步结构设计。（2）研究方法：查阅资料了解国内同类了加工设备的特点，分析设备运行原理，确定系统方案，设计提升机机械结构，完善设计方案。（3）技术路线：研究计划及预期成果：研究计划：2012年11月12日-12月2日：按照任务书要求查阅论文相关参考资料，填写毕业设计开题报告书2013年12月3日-2013年1月20日：实习实训，参与工作。2013年1月21日-3月1日：按照要求修改毕业设计开题报告。2013年3月4日-3月8日：查阅与设计有关的资料不少于10本，外文不少于2本。2013年3月11日-4月12日：自动排向机的设计说明书编写。2013年4月15日-5月10日：绘制自动排向机零件图装配图。2013年5月13日-5月17日：完成设计说明书、摘要和小结。2013年5月20日-5月25日：整理所有资料上交指导教师，答辩。预期成果：弥补现有排向机的不足和缺陷：在在线监测方面加强，原本在生产线上掉落的针脚需要工人放回料斗，经过改善，可自行回收进入料斗。改善后由PLC控制自动补给石墨舟，从而减少人工，提高二极管生产效率，增加经济收益。特色或创新之处：排向机是二极管生产过程中的关键设备，可以将二极管针脚有序地排列到石墨舟中，进行后续工序的加工。改善后的排向机弥补了现有排向机的不足和缺陷。在在线监测方面得到了加强，原本在生产线上掉落的针脚需要工人放回料斗，经过改善，可自行回收进入料斗。改善前石墨舟针脚排满后需人工取走，再放上空的石墨舟，改善后由PLC控制自动补给石墨舟，从而减少了人工，提高了二极管生产效率，增加了经济收益。已具备的条件和尚需解决的问题：条件：1、学校可提供开发用计算机及编程工具，图书馆有相关书籍和文献检索系统；2、学生通过前期课程的学习和设计环节的培养已具有机电系统设计的基础；3、学生具有掌握新技术和新工艺的能力；4、指导教师具有从事相关技术研究及其应用的科研背景。问题：（1）石墨舟仓方案确定；（2）结构设计和图纸实现；指导教师意见 指导教师签名：年 月 日教研室（学科组、研究所）意见 教研室主任签名： 年 月 日系意见 主管领导签名： 年 月 日英文原文：Control System of Chip High Voltage Ceramic CapacitorBased on PROFIBUSChen Zigen Li XunboFengPeifuLvQiang Yu Sijia（School of Mechatronics Engineering, University of Electronic Science and Technology of China,Chengdu 610054, China）Abstract: As the whole electric-machine is becoming smaller and thinner, function parts are becoming more and more high-voltage resistant, the chip capacitor should do some changes to meet these requirements. For this reason, we are looking for a set of automated equipment to satisfy the requirements above. In view of the present situation, a control system of automated production line based on PROFIBUS has been proposed. By means of analyzing the basic traits and structure of PROFIBUS network, this paper established a hardware structure of the control system of chip high voltage ceramic capacitor (CCH) based on PROFIBUS, realized data-transmitting and function-controlling, finished the hardware and software configuration for the whole system .This system has been successfully used in some enterprise ,realized the automated production of CCH, cut down the costs ,improved labor productivity and obtained good economic effectiveness.Keywords: PROFIBUS; Control System; Configuration; PLC.1 IntroductionWith the rapidly development of LCD, LCD TV and laptop, there are more and more surface mount component（SMC）1, chip capacitor is one of them .Chip ceramic capacitor is multilayer ceramic capacitor（MLCC）2, but the making of Small-capacity MLCC is relatively difficult in high voltage capacitor . The performance of chip single layer ceramic capacitor is superior to that of MLCC, and it is much more competitive than MLCC as for technology and costs. With the market demand increasing, more and more chip single layer ceramic capacitors are used3. In recent years, MLCC is developing in the direction of high voltage, but within the country it remains in the starting stage. Some high voltage circuit, for example, high voltage arrester, laser device and electron microscope, MLCC which used in these high voltage circuits is Chip capacitor enveloped by colophony, the further integration of high voltage circuit was restricted. So, we devised chip high voltage ceramic capacitor（CCH）, which filled in this gap. In the interests of market demand, it is very urgent to research the control system of CCH based on PROFIBUS.Field bus is a communication network which mainly used in process and manufactures automation ,which is the integration of field communication network and control system 4. This is also a combination of computer, communication and control technology, is a new generation control system which is distributed and opened up 5. Meanwhile, the control system of CCH is distributed and opened up network. The slave station each has their roles in the network of this control system. Therefore it is feasible to apply field bus to the control system of CCH .PROFIBUS is a field bus, depending on its distinguished traits, mighty reliability and particular design. Field bus especially fits to inter connecting of the industry process monitoring equipments 4.Furthermore it is figured as one of the most promising field bus. Based on analyzing the development of CCH and PROFIBUS, the control system of CCH based on PROFIBUS is designed.2 ProfibusPROFIBUS is one of the most widely used fieldbus, which uses a token-based medium access control mechanism that is a version of the Timed Token Protocol 6 and the MS (master-slave) way between the master and their slaves. In the PROFIBUS protocol, a token circulates between the stations of a logical ring, which is implemented on a physical bus .In the logical ring system, Master stations manage the token and control communications with the Slave stations, which are devices connected to the bus that cannot transmit unless authorized by a master, but every station would become the master station if it obtains the token and the token time. Messages are transmitted in a message cycle, which comprises an action frame (request or send request frame), a reply frame (acknowledgement or response frame) and possible retires 7.The typical structure of PROFIBUS-DP system includes mono-master and multi-master system .Generally, token passing mode is adopted for data transmission among the masters. MS (master-slave)polling mode is adopted for data exchange between the masters and their slaves. The operation of PROFIBUS-DP is based on MS relationship among the devices connected to the network. In particular ,each master is assigned a set of slaves which it regularly polls on a periodic basis. The right to access the network (and hence to poll the slaves) is regulated by a token circulating among the masters which form a logical ring through this way. If the network works properly, each master may hold the token for the time necessary to perform all its scheduled operations .Then the token is passed to the subsequent master in the logical ring. The time employed by the token to pass through all the masters of the network is defined as the PROFIBUS-DP cycle time and corresponds to the period with which the slaves are polled 8.3 Structure of Hardware SystemThis system is used for automated control of CCH production line, so PROFIBUS-DP network is adopted. The whole system consists of one master ,two slaves and some field devices. Slave A is mainly used to gather the input signal which comes from the switching sensors of the lead feeding machine ,tin-print machine and assemble machine, in the meantime, its output signal control cylinder solenoid valve ,vacuum valve and electromagnetic relays. Slave B is mainly used to gather the input signal which comes from the switching sensors of the lead discharging machine, and output signal to control cylinder solenoid valve, vacuum valve and electromagnetic relays.The central processing unit (CPU) of this control system adopts the German companys Siemens SIMATIC S7-300 series medium-sized programmable logic controller (PLC) 315-2DP, which possesses fast processing speed, high reliability, strong anti-jamming capability and is capable of controlling medium-sized complex systems .When an automatic control system is set up, the simplest structure of this system is the mono-master DP system. Generally, we adopt MS communication mode. According to the principle of MS communication, the master exchanges data with its slaves by polling. These control systems are varying because of their different task; therefore two kinds of network structures are usually adopted, which will be described below.The first structure of the network system is shown in Fig.1. It is a simple mono-master DP system .The master station consists of PLC and PC. And its slave is made of the bus interface module and some field devices. The other I/Os, for example, sensors and switches, are connected to the PLC of master. PC is used to edit and debug program. The tasks of the master are to monitor and control each slave from long distance. Besides, the control arithmetic of this system is done in the master. It is used to control these slaves according to the request of whole control system. Via the bus interface module, the field device is connected to the PROFIBUS-DP network. The slave station receives the controlling command from its master and controls that field devices. With the development of field bus technology, more and more I/O modules are designed. The structure shown in Fig.1 is feasible and convenient. In this case, the slaves receive data from DP network by its communication control module.In order to further improve the performance of control each slave, it is suggested that the structure of network system shown in Fig. 2 should be adopted .The difference between the structure of system shown in Fig. 2 and Fig. 1 is that the slave in Fig.2 is based on I/O module BL20, DP bus communication modules ,power modules and switching of I/O modules are provided by the Germany Turck Company. The structure of network is still a mono-master DP system .The primary task of master is the same as the system discussed above shown in Fig. 1. It can monitor every slave in long distance and realize the control arithmetic. The slaves connect with the I/O module which adopts vector control mode, and the I/O moduleBL20 connects with the field device. In this way, we can control the entire system better.The DP masters exchange various message with their slaves. These message includes the services of SRD (send and require responsive data) and SDN(send data with no acknowledge). The DP master sends data to their slaves and receives the data from their Slaves within the DP polling cycle time. To increase the reliability of the data transmission process ,there are mandatory services for the master station .The services offered are shown in Fig.3 .It is quite significant to set up this control system based on PROFIBUS-DP. In this way, the cable length can be reduced, the structure of system becomes simple, the reliability of system is improved, and it makes designing more convenient. Whats more, the control system possesses the highly ability of expansion because the mode of design is modularized.4 Structure of Software SystemIn order to realize the control system based on PROFIBUS-DP network, hardware configuration of PROFIBUS-DP network must be done via STEP7 5.2 version software. The application software of monitoring can be edited by configuration software MCGS or the others. But in this control system, we monitor the whole system through MCGS. They will be described below. 4.1 Slave MonitorThis system adopts SIMATIC S7-300 which is supported by programming tool STEP7 V5.2 to complete the hardware configuration, parameter setting, PLC programming, testing, debugging and document processing. The hardware configuration flow diagram is shown in Fig.4.Program consists of organization block, function and function block ,system function and system function block and data block. The users program in the DP master controls and monitors the communication on PROFIBUS-DP by special SIMATIC S7 FC blocks. The FCs carries out the following tasks: (1) transfer output data fromS7 CPU to field device, Vice versa; (2) monitor and diagnose scene equipment.4.2 Master MonitorThe user application system created by MCGS consists of control window, equipment window, user window, real-time database and operating strategy. In this system, according to the practical working condition, the control window is chip capacitor monitoring system; the main equipment are lead feeding machine, lead discharging machine, tin-print machine and assemble machine. The established user window are shear lead, lead feeding, tin-printing ,transmitting, product recording, discharging and capacitance assemble. The real-time database consists of the scene data of the assembly-line and the parameter of real-time processing which includes the working data of various devices, emergency situations ,alarming parameters, etc. In the strategy, we mainly adopt startup strategy, circulation strategy, alarming strategy, matter strategy and exiting strategy. Through real-time monitoring, we get to know each devices working condition and guarantee the entire production process going smoothly, which has met the requirements of remote monitoring in producing process. The overall monitoring of Master Station is shown in Fig. 5.5 ConclusionIt is proved by practice that this system can satisfy the demand of control in accuracy, real-time capacity and have high reliability, simple structure, and relatively low prices as well. It is applied to the production field and is able to quickly meet the needs of mass production in CCH mass production, making the whole process achieves production automation and enhance the companys competitiveness in the market, so that enterprises gradually meet the requirements of industrial modernization.References1 Xiao Yongshan, Song Fumin, Liu Shaojun. Survey onlacement Equipment of SMC/SMD.Equipment forlectronic Products Manufacturing, Sum.143, No.12,p.11-17, Dec.2006.2 Yang Bangchao, FengZhesheng, Lu Yun, Current Statusnd Tendency of MLCC Technology, Electronicomponents& Materials,Vol.20, No.6, pp. 17-19.2001.3 Zhang Shiying, Wang Yan, LuoShiyong et al, Type CCHigh Voltage Ceramic Capacitors, electronic components& materials, Vol.23, No.6,pp.10-13, Jun. 2004.4 Li Zhengjun, Field Bus and Application, mechanism press,2006.5 Cui Zhijin, Fieldbus Technology and Its Trend, Journal ofShanghai Maritime University, Vol. 22,No. 1, pp.81-83,Mar. 2001.6 R. M. Grow, “A timed token protocol for local areanetworks,” In Proceedings of Electro82, Token AccessProtocols, pp. 17, May 1982.7 L.Lo Bello, O.Mirablla. A Multi-Ring Scheduling Strategyfor Profibus Networks.In Proceedings of the 27th AnnualConference of the IEEE Industrial Electronics Society,Vol.1, pp.2144-2148, Nov.2001.8 S.Vitturi, Stochastic model of the Profibus DP cycle time,IEEE Proceedings Science, Measurement and Technology,Vol. 151, No. 5, pp.335-342, Sept. 2004.Author BiographyChen Zigen (1984-), male, graduate of School of MechatronicsEngineering, University of Electronic Science and Technologyof China, is engaged in research of Algorithm and automaticcontrol system.中文翻译：控制系统基于现场总线的高压陶瓷电容器芯片（机电一体化工程学校,中国电子科技大学,成都 610054,中国）摘要：由于现在电动机整体正变得更小，更薄，功能部件越来越耐高压，片式电容应该做一些改变，以满足这些要求。出于这个原因，我们正在寻找一种自动化设备，以满足上述要求。鉴于目前的情况，我们提出了基于现场总新的被检定的自动化生产线的控制系统。通过总线网络的基本特征和结构分析，本文建立了一个高压陶瓷电容器芯片（CCH）。基于现场总线控制系统的硬件结构，实现数据传输和控制功能，完成了硬件和软件配置整个系统。这个系统已成功地在一些企业中使用，实现了高压陶瓷电容器芯片的自动配对生产，降低成本，提高劳动生产率，取得了良好的经济效益。关键词：现场总线；控制系统；配置；PLC。1. 说明随着液晶显示器，液晶电视和笔记本电脑的迅速发展，有越来越多的表面贴装元件（SMC），片式电容就是其中之一。片式陶瓷电容器是多层陶瓷电容器（MLCC），但在高电压电容中，生产小容量MLCC的是比较困难的。芯片单层陶瓷电容器比MLCC的性能优越，它是技术和成本远比MLCC有竞争力。随着市场需求的增加，人们越来越多的使用芯片单层陶瓷电容器。近年来，MLCC在高电压的方向发展，但在国内仍然在起步阶段。例如，一些高电压电路，高压避雷针，激光设备，电子显微镜，在这些高电压电路用于MLCC用于电容由树脂包膜，但是高压电路的进一步集成受到限制。因此，我们设计了芯片高压陶瓷电容器（CCH），从而填补这一差距。优于市场利益的需求，研究基于现场总线CCH的控制系统是非常紧迫的。现场总线是一种通信网络，主要用于工艺和生产自动化，这是通信网络和控制系统两个领域的集成。这也是计算机，通信和控制技术的结合，是产生并开发出的新一代控制系统。同时,CCH控制系统产生并开辟了网络。从站在该控制系统的网络中各自都具有自己的角色。因此，应用现场总线的CCH控制系统是可行的。现场总线是一种现场总线，取决于其杰出的特质，强大的可靠性和特别设计的。现场总线，尤其适用于除工业过程监控设备的连接。此外，它被认为是最有前途的现场总线之一。CCH和现场总线，CCH控制系统是基于现场总线发展分析的基础上设计。2. 现场总线现场总线是使用最广泛的现场总线,它使用一个以象征为基础的介质存取控制机制,并且定时指令的一个版本协议与MS（主站和伺服站点）的在主站和伺服站点之间的方式。在现场总线协议之间的一种象征性的循环站的逻辑环在现实的总线上执行。在逻辑环系统中，主站管理记号并控制与伺服站点的通信，伺服站点站点的设备与不能传输信号除非是由主站授权的总线连接，但是每一个站点如果获得了记号并且有时间的话都可以成为主站站点。信息在一个由动作环节（申请或发送申请环节）、反应环节（接受或反映环节）、和可能的回收环节组成的信息环中传递。DP现场总线总线系统的典型结构,包括（mono）主站点、多站点系统。 一般来说,指令传递方式进行数据传输采用主站。MS(主站和伺服站点)推送模式采用主站和他的伺服站点质检的数据传输进行。DP现场总线的运作是基于MS装置连接到网络。特别的,每一台主站都被指派了一组定期上传数据的伺服站点。通过这种方式，有权获得网络(并从而推送伺服站点)是一种象征性的循环中规定的来自于临时逻辑环的主站。如果网络顺利,各个主站都可表示为足够的时间来完成所有计划行动。然后指令传递到接下来的主站所在的逻辑环上。时间受限于标志穿过所有主站的定义是:DP现场总线网络周期和对应的伺服站点周期都参与了推送数据。3. 硬件系统结构这种系统用于CCH的自动控制生产线,因此采用DP现场总线网络。整个系统由一个主站,两个伺服站点和一些现场设备组成。主站A主要是用来收集来自于铅料机，tin-print机和装配机开关传感器的输入信号,同时,其输出信号控制缸电磁阀、真空阀门和电磁继电器。伺服站点B主要是用来收集来自于开关传感器的铅排放机的输入信号而输出信号用于控制圆柱螺线阀、真空阀门和磁力继电器。中央处理单元(CPU),该控制系统采用德国西门子公司的“S7 - 300系列”采用SIMATIC中型可编程逻辑控制器(PLC)315 - 2 - DP,具有处理速度极快,可靠性高,抗干扰能力强,能够控制中型的复杂系统。当建立一个自动控制系统时,该系统的最简单的硬件结构是mono-master DP系统。一般来说,我们采用MS信息传输模式。根据MS信息传输的原则,主站与伺服站点通过推送信息进行交流。这些控制系统是不同的,因为他们的不同的任务,因此两种网络结构通常是采用将下面描述。第一个结构的网络系统是显示在图1。这是一个简单mono-master DP系统。 主站站点由PLC和电脑组成。它的伺服站点由总线接口模块和一些现场设备等构成。其他的I /O系统,例如,传感器和开关,被连接到主站的PLC。电脑是用来编辑和调试程序的。主站的任务是监视远距离和控制每个伺服站点。此外,该系统的控制算法是在主站中完成的。它是根据整个控制系统用来控制伺服站点的要求。通过总线接口模块、现场设备连接到DP现场总线网络。伺服站点站点接收控制命令它主站和现场设备的控制。随着现场总线技术的发展,越来越多的I / O模块被设计出来。显示在图1上结构是可行的、方便的。在这种情况下,伺服站点通过通讯控制模块从DP网络接收数据。为了进一步提高其性能的控制每一个伺服站点,图2 显示的网络的结构系统应该被采纳。结构之间的区别在图2显示系统和图1是，图2中的伺服站点是基于在I / O模块,DP总线式通信模块、电源模块和交换的I / O模块由德国图尔克的公司生产的。网络的结构仍然是一个mono-master DP系统。主站的首要任务是和之前图1上讨论的系统相同的。它可以远程监控每一个伺服站点,实现控制算法。伺服站点连接到I / O模块,采用矢量控制方式,和I / O module BL20连接现场设备。以这种方式,我们能够将整个系统控制得更好。 DP主站和它的伺服站点交流各种信息。这些消息包含服务SRD (发送和需要响应数据), SDN (发送数据没有承认)。DP主站在 他们的伺服站点向DP输送周期之间对他们的伺服站点发送和接收数据。在提高数据传输的可靠性的过程中,必须由主站进行服务。在图片3中显示了它提供的服务。建立该控制系统基于DP现场总线的总线是非常重要
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