Profibus-DP总线单主站系统报文传输延时分析

基金项目:

天地(常州)自动化股份有限公司研发项目(10GY064)

详细信息

Analysis of Delay of Message Transmission of Profibus-DP Single Master-station System

Changzhou Automation Research Institute of China Coal Technology and Engineering Group Corporation,Changzhou 213015,China

摘要: 采用确定与随机Petri网建立了Profibus-DP总线单主站系统报文传输延时的模型，并在TimeNet软件环境下对其进行了仿真分析，得出了报文传输延时与目标令牌循环时间的关系；并以STEP7软件为例，说明了在实际工程中如何根据Profibus-DP总线参数合理设定目标令牌循环时间、从而使监控系统获得最好的实时性的方法。仿真结果验证了该模型的正确性。
- 煤矿 /
- 监控系统 /
- Profibus-DP总线 /
- 单主站系统 /
- 报文传输 /
- 延时分析 /
- 确定与随机Petri网
Abstract: The paper used determinate and stochastic Petri net to establish a model of message transmission delay of Profibus-DP single master-station system and did simulation analysis in TimeNet software. It got relationship between message transmission delay and target-token cycle time and gave a method of setting target-token cycle time reasonably according to parameters of Profibus-DP in actual projects taking STEP7 software as an example,so as to make monitoring and control system get better real-time performance. The simulation result showed correctness of the model.
- coal mine,monitoring and control system,Profibus-DP,single master-station system,message transmission,delay analysis,determinate and stochastic Petri net