全自动洗衣机PLC控制

PLC programmable logic controller: PLC Programmable Logic Controller English name, Chinese called the programmable logic controller, the definition is: the operation of a digital electronic computing systems for environmental applications in the industrial design. PLC is based on electronic computers, and apply to the industrial scene, the work of the controller. It originated from relay control devices, but it does not relay device, through circuit to achieve control of the physical processes, and mainly rely on running in the memory stored in the PLC process, transform information into and out of control. It uses a programmable memory for its internal storage procedures, the implementation of logical, sequential control, timing, counting and arithmetic operations such as user-oriented instructions, and through digital or analog input / output control of all types mechanical or production process.
Key words: programmable logic controller (PLC); industrial washing machine; Control

 

 

 

目 录
摘 要 2
Abstract 3
目 录 3
任务书 4
第一章 设计方案 7
1.1 PLC的应用领域 7
1.2PLC的应用特点 8
1.3 全自动洗衣机控制方案 10
1.3.1设计方案比较 10
1.3.2 方案的硬件配制 11
1.3.3 I/O 地址分配表 11
1.3.4  电路中定时器的设定及作用 12
第二章 PLC控制系统基础 14
2.1 PLC控制系统设计的基本原则 14
2.1.1 最大限度地满足被控对象的控制要求 14
2.2 PLC I/O模块的选择步骤与原则 14
2.2.1开关量I／O模块的选择 15
2.2.2 开关量输出模块的选择 16
2.2.3模拟量I／O模块的选择 17
2.3电气控制图以及水位检测元件说明 17
2.4  PLC I/O 硬件连接图 17
第三章 程序设计 18
3.1 洗衣机工作流程 19
3.2全自动洗衣机程序分析 20
3.3 工作原理 27
第四章  系统仿真 29
总 结 30
致    谢 31
参考文献 32