摘要
随着网络规模的扩大,使用仿真软件对网络进行仿真,对关键参数和原理进行验证,已经是一种流行的网络开发模式。首先对现场总线和仿真软件OPNET进行了相关介绍和分析,接着对一种典型的现场总线的特征进行了详细说明,然后基于OPNET对该典型总线进行了建模仿真。基于对采集数据的分析,验证了仿真模型的时延符合典型现场总线标准的要求,并且得出了基本周期的选取对标准中规定的时延有较大影响的结论。
With its ever growing scale,network simulation using simulation software to validate key parameters and principles has become a popular network application development pattern.In this paper we make a brief introduction to and analysis on the fieldbus and a simulation software named OPNET.Then we present in detail the characteristics of a typical fieldbus.And we model and simulate the typical fieldbus based on OPNET.Upon analysis on the collected data we verify that the reply delay of this simulation model copes with the requirements of a typical fieldbus standard.Finally we draw the conclusion that the differences in picking of basic cycling periods have significant impacts on the delay defined in the standard.
出处
《计算机应用与软件》
CSCD
2011年第6期96-100,共5页
Computer Applications and Software
基金
国家高技术研究发展计划项目(2006AA010201)
