论文的研究工作是以氧化尾矿铝赤泥坝控制系统设计为背景展开的,并且详细介绍了通过PLC控制下位系统工作的情况,以自由组态的形式对系统进行控制,使得程序具有更灵活的控制途径和更完备的控制方法。本文在深入分析ControlNet总线技术的基础上,重点解析了ControlNet在各总线中的优势,同时阐述了其在环道控制系统中的应用,并且以Rockwell出品的RSLogix5000为基础,编写了联锁组态的独立控制部分软件。论文主要论述了多套PLC之间的通讯,画面上实现多条线路的联锁,使得不同组间的设备能在同一套联锁的情况下,得到有效的保护。 The research work of this paper is based on the design of the oxidation tailings aluminum red mud dam control system design, and details the work of the lower system through PLC control, the system is controlled by the free configuration, which makes the program more flexible The control way and the more complete control method. Based on the in-depth analysis of ControlNet bus technology, this paper focuses on the advantages of ControlNet in each bus and describes its application in the loop control system. Based on RSLogix5000 manufactured by Rockwell, Independent control part of the software. The dissertation mainly discusses the communication among multiple sets of PLCs and the interlocking of multiple lines on the screen so that the equipment in different groups can be effectively protected under the same interlocking condition.