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讨论在采用西门子直流电动机调速装置 (6RA2 4 )构成的现场总线网络控制系统中系统采样周期对系统性能的影响 .为了保证现场总线网络控制系统的性能指标符合实际生产需要 ,提出了设计中的参数采样周期 .通过实验证实了带USS协议和Peer to Peer协议的网络控制系统缩短了采样周期 ,达到了设计的要求
This paper discusses the influence of system sampling period on system performance in fieldbus network control system which is composed of Siemens DC motor speed control device (6RA2 4) .In order to ensure that the performance index of fieldbus network control system meets the actual production requirements, Parameter sampling period.Through experiments, it is confirmed that the network control system with USS protocol and Peer to Peer protocol shortens the sampling period and meets the design requirements