PROFIBUS 인터페이스 보드 개발 및 대역폭 할당기법 구현

Abstract

In this study, physical and data link layers of PROFIBUS are developed using MC686360 CPU. Data generated from field devices can be devided into three categories: sporadic real-time, periodic real-time and non real-time data. Since these data share one fieldbus network medium, it needs a method that allocate the limited bandwidth of fieldbus network to the sporadic real time, periodic real-time and non real-time traffic. In this paper, an implemetation method of bandwidth allocation scheme in the data link layer of PROFIBUS is introduced.