从图1-1中可以看出,在热轧的过程控制级和基础自动化级,各个区域均设置一个子网,将本区域的过程机、HMI服务器和PLC等控制设备连接起来,使得同一区域的PLC之间可以快速交换数据,同时过程机和HMI服务器也可以很方便地与本区的PLC交换信息。而各区域的过程机及其终端、HMI服务器和HMI设备是通过主干网实现互连的,以形成一个完整的整体。通过主干网,各区域的过程机以及过程控制级的终端设备可以相互交换资料,各区域的过程机和HMI服务器也可以相互交换资料。
參考答案:In 1-1 may see from the chart,In hot rolling process control level and foundation automation level,Each region establishes a subnet,This region, the HMI server and PLC control devices and so on process machine connect,Causes the identical region between PLC to be possible to exchange the data fast,Simultaneously the process machine and the HMI server also may very conveniently and the home court PLC exchange information. But various regions process machine and the terminal, the HMI server and the HMI equipment are through the backbone network realization interconnection,Forms a complete whole. Through backbone network,Various regions process machine as well as the process control level terminal device may exchange the material mutually,Various regions process machine and the HMI server also may exchange the material mutually.
