基于plc对天塔之光的设计.doc

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论文题目：基于PLC对天塔之光的设计
姓 名： 雪雪
号： 0
号： 01
所在省市： 省市
所在单位： 工贸技师学院
目 录
摘要·····················································3
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2 控制系统的选择·········································5
3 元器件的选择···········································6
4 天塔之光的PLC设计·····································7
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I/O分配表············································7
流程图··············································8
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结论····················································13
致····················································14
参考文献················································14
基于PLC对天塔之光的设计
琪琪
11技师机电
摘要：本文介绍了利用三菱FX2N系列PLC对天塔之光的控制，阐述了控制方案。实现天塔之光功能的方式有多种，可以采用早期的模拟电路、数字电路或数模混合电路。今年来随着科技的飞速发展，单片机、PLC的应用不断走向深入，同时带动传统的控制检测技术的不断更新。本文采用日本三菱公司生产的FX2N-64MR型PLC作为核心控制器进行天塔之光系统的设计。同时根据天塔之光的控制要求和特点，确定PLC的输入输出分配，并进行现场调试。
关键词：PLC 控制 天塔之光
1 PLC的概述
PLC的简介
PLC定义：可编程控制器是一种数字运算操作的电子系统，专为在工业环境下应用设计。它采用了可编程序的存储器，用来在其部存储和执行逻辑运算、顺序控制、定时、计数和算术运算等操作命令，并通过数字式和模拟式的输入和输出，控制各种类型的机械或生产过程。可编程控制器及其有关外围设备，都按易于与工业系统联成一个整体、易于扩充其功能的原则设汁。”
上世纪80年代至90年代中期，是PLC发展最快的时期，年增长率一直保持为30~40%。可编程序控制器是应用而最广、功能强大、使用方便的通用工业控制装置，自研制成功开始使用以来，它己经成为了当代工业自动化的三大支柱之一。
PLC的特点
(1)编程简单，使用方便
(2)控制灵活，程序可变，具有很好的柔
(3)功能强，扩充方便，性能价格比高
(4)控制系统设计及施工的工作量少，维修方便
(5)可靠性高，抗干扰能力强
(6)体积小、重量轻、能耗低，是“机电一体化”特有的产品。
PLC的主要应用
开关量逻辑控制。这是PLC