摘要
报文帧是网络数据交换和传输的单元,包含将要发送的数据信息,其长度无限制且可变。Profibus-DPV1以DPV0原有报文帧为基础,将DPV1主从报文帧分为MS0、MS1和MS2 3类,对其中的非循环报文帧进行了分析;以Profibus现场总线通信机制为核心,从数据链路层直接透视Profibus现场总线的运行机理,有助于国产Profibus现场总线设备的开发及应用。
Message frame is the unit for network data exchange and transmission,which contains the data to be transmitted information,with infinite and variable length.On the basis of the original DPV0 message frame,the Profibus-DPV1master-slave message frame was divided into three classes,namely MS0,MS1and MS2,in which the acyclic message frame was investigated to understand the core of the Profibus fieldbus communication mechanism fundamentally.Penetrating operation mechanism of the Profibus fieldbus directly from the data link layer was helpful to development and application of the domestic Profibus fieldbus equipments.
出处
《热力发电》
CAS
北大核心
2013年第12期98-102,共5页
Thermal Power Generation
基金
华能集团重点科技资助项目(HNKJ12-H20)
