System for be used for making up equipment level for process mill

System for be used for making up equipment level for process mill is provided, the system comes the field device component level to being coupled to remote terminal unit (RTU) through following operation with communicating: from field device acquisition device information, with the equipment information buffer memory in RTU's memory, store the equipment identity in the memory of host computer machine, and ask in host computer department from RTU acquisition device information in response to the subsequent user who is used for founing the level, and do not need directly to send the order that is used for acquisition device information again to field device. 提供了用于为过程工厂构建设备层级的系统，所述系统通过以下操作来针对通信地耦合到远程终端单元(RTU)的现场设备构件层级：从现场设备获取设备信息；将设备信息缓存在RTU的存储器中；将设备身份储存在主机机器的存储器中；以及响应于用于构建层级的随后的用户请求来在主机处从RTU获取设备信息，而不需要直接向现场设备重新发送用于获取设备信息的命令。