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Application of Profibus in PLC

Author: FangLiZhen
Tutor: ChengGuangHe
School: Shandong Institute of Light Industry
Course: Applied Computer Technology
Keywords: Profibus Communicate Slave VPC3 C PLC
CLC: TP273.5
Type: Master's thesis
Year: 2011
Downloads: 190
Quote: 1
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Abstract


The rapid development of modern society, information technology has brought a radical change of the automation system, the companies also will establish a new type of information system. Requirements of enterprise automation, digital, intelligent, fieldbus came into being and to meet the needs of the global industrial transformation. Fieldbus technology the Profibus bus to stand out, to become the first choice of many enterprises. Fieldbus technology, Profibus to do to ensure they have a stable international standard EN50170 made for the international market leader, also became the only fieldbus national standard (GB/T20540-2006). Yamashina series PLC programmable controller as our own intellectual property rights, in recent years, with its superior technology has made rapid progress, not only by the electromagnetic compatibility (emc) certification, but also have the certification of the EU ce, which to obtain a passport to enter the European market. Currently, the the Yamashina PLC has on the domestic and foreign markets and international old brand fierce competition, and achieved certain results. Yamashina PLC communication protocol support but still relatively simple, communication with other devices rely on a free port agreement in most cases, this will greatly affect the applicability of the Yamashina PLC thereby constraining its market share. Yamashina PLC successfully access the Profibus system, based on the analysis of Profibus protocol and the Yamashina PLC principle with the status quo, through the analysis of a variety of design options and screening eventually proposed a the Yamashina PLC Profibus communication Module design. The program mainly includes hardware microcontroller and dedicated protocol chip VPC3 C design and software design, the program can not change the original agreement, does not change the original structure on the basis of Yamashina PLC as its foundation Profibus slave with the master station to communicate with each other, and ultimately achieve seamless connection Yamashina PLC Profibus bus system. The design of the module will make the the Yamashina PLC applicability and compatibility further enhanced, which will to some extent improve its market competitiveness, increase its market share. Of course, we only realized Profibus-DP communication function, do not do in-depth research on other issues that may arise in the stability of the communication and the communication, and thus make the communication module via Profibus products certified laboratory test and eventually become a qualified product needs to be done to further explore and experiment. Self-developed communication module to access Yamashina PLC as Profibus slave Profibus bus system carried out in-depth research and active exploration Profibus communication reference Yamashina series instrumentation.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system > Computer control, computer control system
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