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General Information
    • ISSN: 1793-8244
    • Frequency: Semiyearly
    • DOI: 10.18178/JACN
    • Editor-in-Chief: Dr. Ka Wai Gary Wong
    • Executive Editor: Ms. Nina Lee
    • Abstracting/ Indexing: EI (INSPEC, IET),  Electronic Journals Library, Ulrich's Periodicals Directory, International Computer Science Digital Library (ICSDL), ProQuest, and Google Scholar.
    • E-mail: jacn@ejournal.net
Dr. Ka Wai Gary Wong
Division of Information and Technology Studies, Faculty of Education, The University of Hong Kong.
It's a honor to serve as the editor-in-chief of JACN. I'll work together with the editors and reviewers to help the journal progress
JACN 2014 Vol.2(1): 71-75 ISSN: 1793-8244
DOI: 10.7763/JACN.2014.V2.85

The Solving of Bias Resistor and Its Effect on the RS485 Fieldbus

Liang Zhao, Ruobing Liang, and Jili Zhang
Abstract—The RS485 fieldbus has been widely used in communication, data collecting and related fields. The stable communication is the premise of its application. Maximum load, terminal resistor and bias resistor are three main parameters of RS485 field bus, which directly influence the stable of system. This paper adopts the current flow method to solve the theoretical value of bias resistor based on the equivalent circuit model of RS485 field bus, and further analyzes the influence on the maximum load and terminal resistor. The research result offers a theoretical basis for the application of RS485 filed bus and is very useful in many applications.

Index Terms—Fieldbus, RS485, bias resistor, terminal resistor.

The authors are with the Faculty of Infrastructure Engineering, Dalian University of Technology, China. (e-mail:zliangdut@qq.com, rbliang1984@126.com, zjldlut@dlut.edu.cn).


Cite:Liang Zhao, Ruobing Liang, and Jili Zhang, "The Solving of Bias Resistor and Its Effect on the RS485 Fieldbus," Journal of Advances in Computer Networks vol. 2, no. 1, pp. 71-75, 2014.

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