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 Advertisi
ng scree
n is used widely i
n our everyday life of equipme
nt; its co
ntrol lighti
ng system plays a vital role. The
neo
n light (la
nter
n) is a type of outdoor advertisi
ng i
n the light of the mai
n forms of advertisi
ng, which are ge
nerally set i
n the city's mid-air, major departme
nt stores, well-k
now
n commercial street bra
nd stores, shop aw
ni
ng, street lights, a
nd hotel more promi
ne
nt positio
n. It ca
n play
not o
nly i
n the daytime advertisi
ng sig
ns, sig
ns advertisi
ng the role, but the
night is colorful, varied forms, has played the role of lighti
ng the city
night. Usi
ng automatic co
ntrol of the advertisi
ng scree
n, the result of PLC with high reliability, stro
ng a
nti-i
nterfere
nce ability, programmi
ng simple a
nd easy to use, i
ntercha
ngeable, flexible combi
natio
n, fu
nctio
nal, wide adaptatio
n, small size, low power co
nsumptio
n, desig
n co
nstructio
n period a
nd short, so I chose to use the PLC to co
ntrol dema
nd is wise. This article is i
ntroduced based o
n the desig
n billboards PLC, the mai
n desig
n eleme
nts are based o
n Model FX2N-48MR-001 PLC to achieve co
ntrol of
neo
n lights a
nd a
n i
ntegrated water cycle, a
nd the use of a simple compariso
n of the major comma
nds a
nd a combi
natio
n timer i
nstructio
ns meet co
ntrol requireme
nts. KEY WORDS: Advertisi
ng scree
n，PLC，
neo
n，logic co
ntrol，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