Data Transmission Mode of a Small-Scale, Real-Time Industry Control Network

被引：0
|
作者：
Jie Xinchun [1 ]
Li Wentao [1 ]
机构：
[1] Inner Mongolia Univ Sci & Technol, Inst Informat & Engn, Baotou 014010, Peoples R China
来源：
MECHATRONICS AND APPLIED MECHANICS, PTS 1 AND 2 | 2012年 / 157-158卷
关键词：
Industry Network; Real-Time Control; Data Transmission;
D O I：
10.4028/www.scientific.net/AMM.157-158.267
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
MAC protocol of bus control network has important influence on its real-time feature. Combining Profibus-DP protocol and Token Bus protocol, a new bus model suitable for small-scaled control system is put forward. Under the principle that follows a control network whole balance, the LAS and GAPL maintenance process in token passing mode and master-slave polling process in data exchange mode of Profibus-DP are discarded. The basic cutting thought of this bus model is summarized; its concrete realization is illustrated in detail, theoretical maximal value of message transmission time and actual test result are presented. The experiment result shows the system's real-time characteristic is improved, and come to the expectant result.
引用
收藏
页码：267 / 272
页数：6
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