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Research and Realizing of Control Software Platform Based on IEC61131-3

Author: WeiJiang
Tutor: WuTieJun；HuangWenJun
School: Zhejiang University
Course: Pattern Recognition and Intelligent Systems
Keywords: IEC61131-3 Software platform From the controller Online Download Control system Communication speed Major changes Industry Applications Leap Communications technology
CLC: TP311.52
Type: Master's thesis
Year: 2005
Downloads: 290
Quote: 5
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Abstract


With the continuous development of computer technology, communication technology, the digital control system is undergoing a major transformation. Dramatically improved control system not only in terms of I / O performance, communication speed, the controller processing capacity, unprecedented extension of their applications. A powerful, able to integrate the advantages of the various parts of the system, and control system software platform for applications in different industries is crucial. The main subject of the work is to build a digital control system software platform combined with the IEC61131-3 standard. Due to the special requirements of digital control systems in industrial applications, the system should have the following characteristics: stability, integrity, ease of use, rich algorithm module and control areas. To achieve this goal, the software platform based on follow IEC61131-3 also provides proprietary organization and running mode, such as platform independent soft simulation, online download, and in this case the alarm and redundancy. Firstly, from the point of view of the controller to build the underlying system software platform. As a result of a multitasking real-time operating system kernel, so that the controller has a powerful real-time scheduling capabilities; controller software real-time operating system and controller main program of the operating system, the controller is divided into three, therefore, having good platform migration characteristics. Secondly, the use of structured XML-based configuration and distributed component technology to build a software platform programming system, IEC61131-3 support in four languages, as well as the monitoring system on this basis. Configuration server unified management and operation of distributed technology, the core of the system configuration information, online download and cross-reference function can also be convenient. In order to make the control system can be applied to the petrochemical, pharmaceutical and food industries, on the basis of the existing software platform established based on IEC61131-3 IEC61512-01 standard and is compatible with the concept of the batch system, design reuse with equipment, characteristics of the bulk of the equipment arbitration, coordinated control system software platform. At the end of this article discusses the use of IEC61131-3 range and occasions, and it analyzed the problems on IEC61131-3 in the future prospects for the development prospect.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer software > Program design,software engineering > Software Engineering > Software Development
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