Application Research Of Embedded Ethernet Measurement And Control System Based On Configuration

Currently, Field Bus technology has made computer monitoring and control webified, and Ethernet technology is also penetrating into the field bus control system.Most big automation companies in the world have launched the monitoring system based on industrial Ethernet after launching field bus control system. Industrial Ethernet uses the embedded Ethernet technology. It is an extension of ordinary Ethernet, and can run the widely supported TCP/IP protocols. Because of this, from the development trend, Ethernet technology is likely to be the unified direction of computer monitoring system at the field level agreement.Firstly, summarizing the industrial ethemet, control system and configuration software, this thesis summes up typical DCS distributed control system architecture, and then creates the new DCS system architecture.Compared to the traditional field bus systems, the new DCS system architecture abandons compatible TCP/IP protocols and field bus protocol. With the IP terminal nodes of TCP/IP protocol embedded directly to the remote monitoring and control of the site, it achieves the system control by using ethernet field bus system instead of the field level motoring and control. At the same time, because the terminal has the IP address, remote monitoring and control system, with great flexibility, can be used directly within the enterprise Intranet Information Network, also can be directly accessed to the existing public Internet network.Secondly, combining with configuration software method and actual applied project, the thesis analyzes common control system and embedded Ethernet technology, then creates the design of embedded ethernet control system with the basis of configuration method. This design provides modified hardware framework and customered software framework, which can improve the reusability and development efficiendcy of hardware and software. In order to gain the maket access quckly, developers can configure and develop prototype system or actual application system with the basis of this design.To be more specific, with the research on control system and embedded Ethernet technology, the thesis combines with configuration software methods, realistic project requirements and many mature configuration soft wares, to design a kind of embedded Ethernet-based configuration method and control system, including the detailed analysis and presentation of terminal equipment on the operation site, configuration tools, system software and hardware design. Control terminal hardware set aside a number of analog and switches detection and control interface; Configuration software can configure the interface parameters of monitoring devices and control relationships as well as general computer control management software, quickly create the application system which can meet the conventional requirements. Monitoring software can reserve, manage and alarm the entire monitoring recorders. It can compensate for the defect which terminal equipment can not store up a large number of records. The thesis also shows the developed configuration software by application examples, as the feasibility and reliability verification of software and hardware system.