摘要
在我们的生活中广告无处不在，而现在在我们的城市当中灯广告特别多，而霓虹灯（彩灯）是户外广告中灯光类广告的主要形式之一，其一般都设置在城市的半空中，各大百货商场，商业街的知名品牌店，店面雨篷，街道的路灯，酒店等比较醒目的位置。它不仅在白天可以起到路牌广告、招牌广告的作用，而且夜晚更是五彩缤纷、形式各异，起到亮化城市夜景的作用。
对广告屏采用自动化控制时，因PLC具有可靠性高，抗干扰能力强，编程简单，使用方便，通用性好，组合灵活，功能完善，适应面广，体积小，功耗低，设计施工周期短等优点，所以选择用PLC来达到控制要求是明智的。本文就是介绍了基于PLC的广告牌设计，其主要设计内容是基于FX2N-48MR-001型号PLC来实现控制霓虹灯和流水灯的综合循环，而且主要运用了简单的比较指令与定时器指令相结合来达到控制要求。
关键词：广告屏，PLC，霓虹灯，逻辑控制，指令
ADVERTISEMENT HOLDS PLC-BASED HEAVY SECTION PROGRAMMING
ABSTRACT
Advertising screen is used widely in our everyday life of equipment; its control lighting system plays a vital role. The neon light (lantern) is a type of outdoor advertising in the light of the main forms of advertising, which are generally set in the city's mid-air, major department stores, well-known commercial street brand stores, shop awning, street lights, and hotel more prominent position. It can play not only in the daytime advertising signs, signs advertising the role, but the night is colorful, varied forms, has played the role of lighting the city night.
Using automatic control of the advertising screen, the result of PLC with high reliability, strong anti-interference ability, programming simple and easy to use, interchangeable, flexible combination, functional, wide adaptation, small size, low power consumption, design construction period and short, so I chose to use the PLC to control demand is wise. This article is introduced based on the design billboards PLC, the main design elements are based on Model FX2N-48MR-001 PLC to achieve control of neon lights and an integrated water cycle, and the use of a simple comparison of the major commands and a combination timer instructions meet control requirements.
KEY WORDS: Advertising screen，PLC，neon，logic control，comma
目录
前言1
第1章课题的提出2
1.1课题的提出2
1.2课题的要求3
第2章设计方案5
总体设计方案与分析5
第3章广告屏控制系统8
3.1广告屏控制系统的选择8
3.2控制系统端子接线图9
3.3控制系统时序图10
3.4控制流程图11
3.5梯形图与指令表13
第4章程序运行原理说明27
第5章PLC的维护28
5.1 PLC的维护28
5.2故障检测与分析28
5.2.1 PLC的自检功能29
5.2.2故障分析与处理29
5.3备用电池的更换30
结论31
谢辞32
参考文献33
外文资料翻译35
