fx2n系列plc在全自动洗衣机控制系统中的应用 毕业论文.doc

目 录 摘 要 1 前 言 3 第1章 可编程逻辑控制器（PLC） 4 1.1 PLC的概述 4 1.1.1 PLC的发展历程 4 1.1.2 PLC的发展趋势 5 1.1.3 PLC系统的特点 6 1.2 PLC的硬件结构 6 1.3 PLC的工作原理 7 1.4 PLC的应用 8 第2章 全自动洗衣机的系统结构和基本工作原理 9 2.1 系统结构 9 2.2 基本工作原理 10 2.3 全自动洗衣机的系统分析 10 第3章 PLC机型的选择和控制要求 11 3.1 机型的选择 12 3.2 I/O分布表 12 3.3 全自动洗衣机的PLC控制系统的要求 13 第4章 PLC控制系统的软件设计 13 4.1 FXGP/WIN编程软件的介绍 14 4.2 硬件接线图 15 4.3 设计分析 15 4.4 程序说明 16 结 论 19 参考文献 20 致 谢 21 附 录 22 摘 要 随着科学技术不断进步和社会飞速发展，洗衣机成为人民日常生活息息相关的家用电器产品。而从诞生以来，其内部的电路控制系统就不断的被改进设计方法也开始多种多样，从而使显得更加智能化。可编程控制器(PLC)以微处理器为核心，普遍采用依据继电接触器控制系统电气原理图编制的梯形图语言进行程序设计，编程容易，功能扩展方便修改灵活结构简单，抗干扰能力强。编程控制器指令丰富，可以接各种输出、输入扩充设备，有丰富的特殊扩展设备，其中的模拟输入设备和通信设备是控制要求与特点PLC；控制自动化Abstract With the continuous progress of science and technology and the rapid development of society, washing into peoples everyday life, household products. Since the birth from the automatic washing machine, fully automatic washing machines, multi-functional and intelligent direction of its development. Its internal circuit control system is constantly being improved. Design began to diversity, so that even more intelligent automatic washing machines. Based on the increasingly widespread application of automatic washing machine, this design produced by Mitsubishi PLC controlled automatic washing machines, and traditional relay logic control system compared to programmable logic controller (PLC) microprocessor core, commonly used relay contactor control system based on electrical ladder diagram compiled programming language, programming is easy, convenient extensions, modify flexible and simple structure, anti-interference ability. PLC control does not require a lot of moving parts and electronic components, its wiring are also greatly reduced, while system maintenance is simple, reduced maintenance time. Mitsubishi FX2N Series PLC instruction rich, you can take a variety of output, input extension device, has a wealth of special extension equipment, including analog input devices and communications equipment is