毕业论文：工业控制网络构建管理分析.doc

石化工业控制网络的设计与分析测试摘要 近年来，工业自动化控制项目的规模呈现出持续扩大的趋势。这就势必对工业控制网络提出了更高的要求。其主要体现在以太网网络的构建以及整体网络的诊断管理上。本文通过对现有的一些工业控制项目的网络搭建及管理方案进行了解分析，提出了“三横三纵”的石化工业以太网络搭建模式以及针对该模式的网络VLAN划分和管理模式。 全文遵循工业项目网络设计的步骤，通过示例和理论相结合的方法，首先阐述了控制室到现场之间由冗余控制网和信息网相互集成的“三横三纵”的网络构建方式。其次说明分析了VLAN的具体划分和应用配置，包括基于赫斯曼交换机的VLAN技术和配置方法。并针对提出的网络构建方式进行VLAN的规划划分，通过划分好的VLAN功能进行以太网通讯测试和DCS系统运行测试，验证其实际可用性。虽然该配置方案增加了工程现场的维护难度，但总体上较好的解决了工业网络错综复杂的区域划分和管理问题。最后，提出基于全网诊断软件的全局网络诊断管理模式。并针对全网诊断软件这一在工业控制网络的创新应用，通过一系列的测试，评估其在工业领域的应用性及前景。 关键词：　工业控制网络，VLAN，全网诊断 Abstract In recent years, the scale of industrial automation control project, presents the trend of sustained widening. So that it will need higher requirements of industrial control network. These requirements mainly embodied in Ethernet network building and the diagnosis of overall network management. According to the analysis of network building and management based on some existing industrial control network, this paper puts forward the petrochemical industrial Ethernet network building mode named ‘Three Horizontal Three Vertical’, and the network VLAN division and management pattern of this mode. Through the method of combining the examples and theory, all this paper follows the step of industrial project network design, firstly, expounds the ‘Three Horizontal Three Vertical’ network building mode, which depends on the integration of redundant control network and information network from control room to field. Secondly, analyses the specific VLAN division and application configuration, including VLAN technology and configuration method based on the Hirschmann switches, and makes a VLAN division of proposed network structure. Then, verifies the actual availability through the Ethernet communication test and the DCS system running test. Although this configuration increases the difficulty of project on-site maintenance, but overall, it is a better solution to complex industrial networks zoning and management issues. Finally, it will put forward the entire network diag