易拉宝是写真还是喷绘:英语翻译

来源:百度文库 编辑:中科新闻网 时间:2024/03/29 04:39:52
本文主要就可编程控制器(PLC)的原理及其在工程中的应用实践进行了探讨。以西门子公司生产的S7-200系列PLC为例简单地介绍了整个PLC的基本构成,工作原理以及相关的通信协议。并根据工业自动化控制现场的实际情况,将PLC自动控制系统应用于火电厂的化学水处理系统中。
分析了SIMATIC S7-200系列PLC的基本原理和组成,以及现在所使用的计算机辅助编程软件STEP7-Micro/WIN32。这个软件的功能强大,界面友好,并有方便的联机帮助功能,用户可利用该软件开发PLC应用程序,同时也可实时监控用户的状态。该软件是西门子公司专门为SIMATIC S7-200系列PLC设计开发的,是用户不可缺少的开发工具。
结合计算机网络的七层OSI参考模型,根据工业控制网络的基本实现方法和标准,分析了几种著名PLC厂家生产的可编程序控制器的网络结构。
对SIMATIC S7-200的网络结构及其各种通信实现方式进行了详细的描述。对西门子公司PLC的几种通信协议进行了深入分析。
结合某电厂化学水处理的自动控制系统,论述了PLC在实际中的应用。
最后进行系统调试和效益分析,作出结论。
我用软件翻译,老师说我的翻译太糟了,自己又翻译不好,就来这里求救了》》》》》

The main on programmable controller (PLC) in the principles and practice of project applications explored. S7-200 series production to Siemens Plc briefly introduced the Plc as an example of the basic composition of the working principles and the relevant communication agreement. According to industrial automation and control realities on the ground, Plc automatic control system will be applied to fire chemical water treatment plant system. Analysis of the basic principles of Simatic S7-200 series Plc and composition, and now use computer-aided software STEP7-Micro/WIN32 programming. This software powerful, friendly interface, and convenient on-line help function, users can make use of the software Plc applications, and users can also monitoring the situation. The software is exclusively for Siemens Simatic S7-200 series Plc design, development is an indispensable tool for users. Integration of computer networks instead OSI参考模型, according to the basic realization of the industrial control network methods and standards, analyzed several famous Plc manufacturers produced programmable controller network structure. Simatic S7-200 network structure and the various means of communication to achieve a detailed description. Siemens Plc communications to several agreements to conduct in-depth analysis. A water treatment plant in conjunction with the automatic control system of chemical, addresses Plc in the actual application. Finally a system debugging and effectiveness analysis concluded.

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