| Industrial control network technology in today’s automation system is playing an increasingly important role Many technologies such as automation and intelligent instruments technology are integrated into the Fieldbus. Fieldbus control system constitutes the distribute, digital, intelligent, two-direction, interlink, multi-parameters, multi-point communication and control system, and becomes the trend of the development of automation and control, it is called LAN of automation。This paper takes the zhongzhou branch Chinese aluminium co。, LTD alumina broken system of industrial control network system construction as the background, the scene of fieldbus technology and different between systems interconnection of research。 Screening of broken bauxite on the production process for industrial control network system requirements, the major equipment for simple on the bauxite crusher process, rockwell controlnet industrial control network and Siemens S7-200and S7-300have been studied for the installation of control systems development work done full preparations。 This paper presents by rockwell industrial control network Controlnet and Siemens industrial control network interconnection, and make the network from its original single bus-control to bus-control and star structure constituted based on studying the basic theory of PROFIBUS-DP (including system composing, protocol structure, transmission technique,data access mechanism and slave station communication principle)。... |
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