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毕业设计-基于S7-200PLC广告灯箱的设计与制作，共42页，13442字
中文摘要
PLC英文全称Programmable Logic Controller ,中文全称为可编程逻辑控制器，定义是:一种数字运算操作的电子系统，专为在工业环境应用而设计的。
PLC是一种专门为在工业环境下应用而设计的数字运算操作的电子装置。它采用可以编制程序的存储器，用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令，并能通过数字式或模拟式的输入和输出，控制各种类型的机械或生产过程。PLC及其有关的外围设备都应该按易于与工业控制系统形成一个整体，易于扩展其功能的原则而设计。
随着改革的不断深入,社会主义市场经济的不断繁荣和发展,个大中小城市都在进行亮化工程。个企业为宣传自己企业的形象和产品,均采用广告手法之一:彩灯广告灯箱来实现这一目的.当我们夜晚走在大街上,马路两旁各色各样的彩灯广告均可以见到,一种是采用各种形状和多中彩色的灯管,另一种为日光灯管或白炽灯管作为光源,另配大型广告语或宣传画来达到宣传的效果。这些灯的亮灭,闪烁时间及流动方向等均可以通过PLC来达到控制的要求.
关键字：S7-200PLC、广告灯箱、自动控制
Abstract
PLC English name Programmable Logic Controller, Chinese called the programmable logic controller, the definition is: a digital computing operation of electronic systems in industrial environments for applications.
PLC is a specialized in industrial environments for applications designed to operate electronic digital computing device. It can be programmed using the memory, used in its implementation of internal storage logic operations, the order of operations, timing, counting and arithmetic operations, such as operating instructions, and can be digital or analog input and output, control of various types of machinery or production process. PLC and its associated peripheral equipment should be in accordance with the industrial control system is easy to form a whole, easy to extend its functions and design principles.
With the deepening of reforms, the socialist market economy, increasing prosperity and development of cities during the months Xinhuanet lighting works. Enterprises to promote their corporate image and products, are one of advertising: neon-screen to achieve this purpose. When we walk in the street at night, the road on both sides of all kinds of neon signs advertising all can see, a neon tube is made of a variety of shapes and multi-colored lamp, and the other for sunlight, such as pipe or tube as the incandescent light source, language or reprovision large advertising posters to achieve the effect of publicity. These bright lights out, blinking all the time and the flow direction can be controlled through the PLC to meet the requirements.
Key words:S7-200 PLC , neon, autocontrol

目录
第一章 广告灯箱的设计要求 1
1.1 广告灯箱的功能控制要求 1
1.2 广告灯箱的选题意义 1
1.3 广告灯箱的设计思路 1
1.4 广告灯箱流程设计图 2
第二章 PLC的概括 3
2.1 PLC的由来 3
2.2 PLC的结构 3
2.3 PLC的工作原理 6
2.4 PLC的意义与发展 7
第三章 S7-200 PLC的功能控制 8
3.1 S7-200 PLC的介绍 8
3.2 I/O地址分配表 8
3.3 S7-200 PLC的型号选择 9
3.4 S7-200PLC的电源选择 11
第四章 广告灯箱的实体系统设计 12
4.1 广告灯箱的外箱总设计 12
4.2 PLC硬件系统设计方法 13
4.3 S7-200PLC接线与布线 14
4.4 S7-200PLC接头安装 15
4.5 S7-200PLC端子硬线接线图 16
4.6 S7-200PLC端子软线接线图 17
第五章 S7-200编程软件 19
5.1 S7-200控制程序 19
5.2 编程语言 20
第六章 利用STEP7程序进行运行、下载及调试 22
6.1 STEP7程序的使用过程 22
6.2 STEP 7 MICROWIN V3.2的使用过程 22
6.3 下载程序的过程 23
6.4 彩灯广告灯箱的编译与下载 24
6.5 彩灯广告灯箱的运行与调试 24
第七章 彩灯广告灯箱的程序编排 25
7.1 程序控制运行设计（梯形图） 25
7.2 故障的检修过程 29
7.3 故障的检查方案 29
7.4 PLC整体实物效果图 30
总结 33
参考文献 34
致谢 35