Earticle

초록

영어

This paper analyzes several factors affecting the reliability of RS485 fieldbus communication, and then establishes the equivalent circuit model in order to solve bias resistor. The value range of bias resistor on the fieldbus is 556Ω~716Ω, which is determined by using the law of KCL and current limiting method. Furthermore the best value of bias resistor is derived about 670Ω for different unit loads based on the relationship between number of network nodes and the value of bias resistor, and the corresponding maximum network nodes of fieldbus are determined too. The research of this paper provides theoretical basis and engineering design guidance for the application of RS485 fieldbus.

목차

Abstract
 1. Introduction
 2. Communication Reliability Influencing Factors Analysis
 3 Equivalent Circuit Model
  3.1 The Equivalent Circuit of RS485 Fieldbus
  3.2 The Constraint Conditions
 4 Solving the Key Parameters of RS485 Fieldbus
  4.1 The Range of Bias Resistor
  4.2 Search for the Best Value of Bias Resistor
 5. Conclusions
 References

키워드

저자

• Liang Zhao [ Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China ]
• Ruobing Liang [ Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China ]
• Jili Zhang [ Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Future Generation Communication and Networking

• 간기

  격월간

• pISSN

  2233-7857

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605