透明的PROFIBUS DP/PA耦合器技术及其应用

Technology and Application of Transparent PROFIBUS DP/PA Coupler

探讨了DP/PA耦合器在PROFIBUS总线中的应用,提出了一种透明的DP/PA耦合器技术。依此技术实现的DP/PA耦合器可透明地传输DP总线和PA总线的信息,应用中不占用总线地址,无需任何配置,大大降低了对使用者的技术要求。该DP/PA耦合器包含两路冗余的DP接口,能够连接冗余的PROFIBUS总线系统,支持DPV0和DPV1协议,支持在线仪表管理,为PROFIBUS-PA设备接入PROFIBUS总线系统提供了完美的解决方案。

This paper discusses the application of DP/PA coupler in PROFIBUS,and presents a transparent DP/PA coupler technology.The DP/PA coupler achieved according to this technology can transparently transmit information between DP and PA.It occupies no bus address,and no configuration is necessary,so it greatly reduces the technical requirements of the user.The DP/PA coupler consists of two redundant DP interfaces,and it can be assigned to a redundant PROFIBUS system.It support both DPV0 and DPV1 protocols,support device management,so it provides a perfect solution for assign PROFIBUS-PA devices to PROFIBUS systems.