【作者】 马俊；

【导师】 张晓丽；

【作者基本信息】 大连理工大学 ， 机械制造及其自动化， 2006， 硕士

【摘要】 随着计算机技术及网络通信技术的迅猛发展,国内外各钢铁企业为了提高生产效率,增强企业在市场中的竞争实力,对企业的自动化、信息化建设提出了更高的要求,希望能够利用计算机的强大功能来更好地实现企业生产管理的自动化、信息化,最终达到管控一体化的目标。在企业的自动化信息化建设进程中,有很多企业都不希望完全更换原有的基础自动化设备,一方面是由于这些设备运转良好,仍能满足生产需求;另一方面是如果彻底替换掉这些设备,不但投资大、开发周期长,而且还会严重影响企业的正常生产。因此大多数企业都希望能够找到一种解决此类问题的方法,即能够在保留原有自动化设备的基础上对其自动化系统进行改造和升级,实现企业自动化控制系统与信息管理系统的整合。 本文针对以上问题,提出了开发实时数据通信系统的解决方案,并以本钢炼钢厂1#AHF及RH炉外精炼设备为背景,分析了1#AHF及RH自动化系统中所存在的一级与二级自动化系统无法通信的问题,在保留一级自动化系统中原有的西门子公司S5-155U型PLC的基础上,对其自动化系统进行改造,设计并丌发了实时数据通信系统,实现了1#AHF及RH一级与二级自动化系统的实时通信。该系统通过工业以太网将一级自动化系统中的S5-155U型PLC与二级自动化系统中的计算机组网,采用组态软件WinCC将一级自动化系统S5-155U中的生产过程数据实时地采集到过程控制计算机,并采用OPC技术,通过实时数据通信软件取出这些数据,进行相应的处理,最后实时地发送到二级自动化系统的Oracle数据库服务器,完成了炼钢厂1#AHF及RH—级与二级自动化系统的实时通信。 目前,整个系统已在模拟环境中测试通过,其运转稳定、功能完整、性能可靠,达到了炼钢厂的生产实际需求,得到了工厂的认可。更多还原

【Abstract】 With the rapid development of technologies of computer, network and communication, the national and international steel enterprises put forward the higher request to their automation and informatization construction in order to increase efficiency and enhance competitive ability. They want to construct the automation and informatization of enterprise by making use of the powerful functions of computer and achieve the aim of the integration of management and control finally. In the process of the automation and informatization construction of enterprise, a good deal of enterprises don’t want their old basic automation devices to be replaced entirely. One side, these devices are still running normally, and can be satisfied with the requirement of production very well. On the other hand, if these old devices are replaced entirely, it will spend lots of money and extend the period of development. Even, it will break the daily production of enterprise seriously. So most of enterprises want to find a good method to solve this problem. They hope this method can improve and upgrade automation system on the foundation of reserving the old basic automation devices. And achieve the integration between the automation control system and management information system of enterprise.In view of the above-mentioned problem, this thesis introduces the solution which can solve the problem commendably by developing a real-time data communication system between level 1 and level 2 automation system of enterprise. Using the steel-making plant at Benxi Iron and Steel (Group) Co., LTD. as the background, it analyzes the problem which is about the information of production can’t be transmitted from level 1 to level 2 automation system of 1# AHF & RH in steel-making plant. The automation system is improved on the foundation of reserving the old PLC devices of SIMENS S5-155U. It designs and develops the real-time data communication system, and achieves real-time communication between level 1 and level 2 automation system of 1# AHF & RH finally. This system connects S5-155U of the level 1 automation system with the process control computer of the level 2 automation system by technology of industrial Ethernet. The process control computer of the level 2 automation system collects the data of production from S5-155U of the level 1 automation system by the configuration software. The real-time data communication software is programmed by using the technology of OPC, which can collect the data formconfiguration software and send the data to the server of Oracle database which is in the level 2 automation system immediately. Through this process, the real-time data communication system achieves the aim of real-time communication between level 1 and level 2 automation system of 1# AHF & RH in steel-making plant.At present, the test for real-time data communication system has been past in the simulative condition. In the testing process, the system is running stability, and its function is integrated, capability is credible. It is satisfied with the need of the steel-making plant, and be approbated by the enterprise.更多还原