원문정보
보안공학연구지원센터(IJFGCN)
International Journal of Future Generation Communication and Networking
Vol.8 No.3
2015.06
pp.89-96
피인용수 : 0건 (자료제공 : 네이버학술정보)
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
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
저자정보
참고문헌
자료제공 : 네이버학술정보