毕业设计(论文)-基于组态软件的PLC仿真实验平台设计.doc

PAGE 摘要 可编程控制器(PLC)是工业控制领域的重要装置，随着工业自动化技术的不断发展，其应用范围也在不断拓展。对于培养专业工程技术方面人才的高校来说，PLC的教学显得尤为重要。本文的设计正是在基于改进PLC实验教学装置、提高实验教学质量的目的提出来的。 本文就当前高校PLC教学实验的现状和其中存在的问题提出了可行的方案—基于组态软件的PLC实验教学系统。论文的开始分析了现阶段PLC教学系统存在的一些弊端，接着介绍一些常见的PLC以及组态软件，简述它们的发展史，然后是基于组态软件仿真平台的实验原理。本文使用的西门子S7-200PLC和WinCC(Windows Control Center)来讲述平台的设计。最后通过几个简单的仿真实验，详细论述了该实验基于S7-200系列PLC和WinCC组态软件的实现方案，并建立了PLC仿真实验平台教学系统。 教学仿真系统不仅可验证 PLC的控制程序的正确与否，还可直观逼真地显示 PLC 动态控制过程，加深对 PLC 实验的兴趣和理解，提高 PLC课程的理论学习水平。基于组态软件的PLC实验教学系统的建成，解决了高校开展PLC实验课程难的问题，较好的满足了高校PLC课程教学实验的要求。 关键词：实验教学，可编程控制器，组态软件，仿真 ABSTRACT Programmable Logic Controller (PLC) is an important field of industrial control devices. With the continuous development of industrial automation technology, it is also expanding its range of applications. To colleges and universities which cultivate talents of professional engineers, PLC teaching is particularly important. This paper is brought up based on the purpose of improving PLC experimental teaching device and the quality of experiment teaching. This paper analyzed the current condition of domestic PLC experimental teaching at present and summarized the existing problems of experimental teaching equipment in many universities, then propounded a new PLC experiment system based on industrial monitoring configuration software which is in combination of the base of previous studies. The beginning of the paper analyzed the drawbacks existed in present teaching system of PLC, then introduce some common PLC and configuration software. A brief description of their development history, and is based on the principle of the simulation platform of the configuration software .In this paper, using the Siemens S7-200 PLC and WinCC (Windows Control Center) to tell the platform design. Finally through a