PLC全自動(dòng)洗衣機(jī)控制系統(tǒng)





摘  要

本文介紹了采用可編程控制器（PLC）作為核心控制部件，并利用計(jì)算機(jī)進(jìn)行組態(tài)監(jiān)控的全自動(dòng)洗衣機(jī)控制系統(tǒng)。文章介紹了洗衣機(jī)的結(jié)構(gòu)，對(duì)全自動(dòng)洗衣機(jī)的控制系統(tǒng)進(jìn)行了分析，在此基礎(chǔ)上提出了基于PLC的全自動(dòng)洗衣機(jī)控制方案，并對(duì)方案進(jìn)行了論證，根據(jù)洗衣機(jī)的工作原理，設(shè)計(jì)了流程及程序，對(duì)按鈕，繼電器，開(kāi)關(guān)，變頻器等其它一些輸入/輸出點(diǎn)進(jìn)行控制，實(shí)現(xiàn)了洗衣機(jī)洗衣過(guò)程的自動(dòng)化。由于洗滌，排水，脫水的時(shí)間均由PLC內(nèi)計(jì)數(shù)器控制，所以只要改變計(jì)數(shù)器參數(shù)就可以改變時(shí)間。具有智能化程度高、安全可靠、方便、靈活等特點(diǎn)。

關(guān)鍵詞：PLC；全自動(dòng)洗衣機(jī)；變頻器；繼電器

Abstract

This article used programmable controller PLC to realize the washer completely automatic control, explained the PLC control principle method, the characteristic and controlled the washer the characteristic. The article during introduction washer structure, carries on the analysis to the completely automatic washer control system, proposed in this foundation based on the PLC completely automatic washer control plan, and has carried on the proof to the plan, has carried on the design according to the washer principle of work to the procedure and the flow, has the intellectualized degree high, safe reliable and so on the characteristics. To the button, the relay, the switch, the frequency changer and so on other some I/O spot carries on the control, realized the washer to wash clothes the process automation. Because spreads every time lavation, draining water, dehydrated time by PLC in counter control, so long as therefore the change counter parameter may change the time.

Keywords: Programmable Logic Controller; The automatic process; converter; control relay

目  錄

1 緒論 1

1.1 選題的背景意義 1

1.2 洗衣機(jī)的發(fā)展歷史 1

1.3 自動(dòng)控制的應(yīng)用領(lǐng)域 3

1.4 本次畢設(shè)主要研究的內(nèi)容 3

2 系統(tǒng)的總體設(shè)計(jì) 4

2.1 洗衣機(jī)控制系統(tǒng)簡(jiǎn)介 4

2.2 控制系統(tǒng)的組成 4

3 硬件的理論與設(shè)計(jì) 6

3.1 硬件設(shè)計(jì) 6

3.2 可編程序控制器 7

3.2.1 可編程控制器的基本概念與基本結(jié)構(gòu) 7

3.2.2 可編程控制器的基本特點(diǎn) 8

3.2.3 S7-200系列PLC 8

3.2.4 PLC接線(xiàn)圖 9

3.2.5 開(kāi)關(guān)量I/O模塊的選擇 10

3.2.6 可編程序控制器I/O分配表 12

3.3 繼電器 14

3.3.1 繼電器簡(jiǎn)介 14

3.3.2 繼電器組的應(yīng)用及實(shí)現(xiàn)的功能 14

3.4 變頻器的使用及參數(shù)設(shè)定 15

4 軟件介紹 16

4.1 STEP7編程軟件安裝 16

4.1.1 安裝條件 16

4.1.2 安裝步驟 16

4.2 組態(tài)軟件簡(jiǎn)介 18

5 程序設(shè)計(jì) 20

5.1 T型圖程序設(shè)計(jì) 20

5.1.1 程序流程圖 20

5.1.2 梯形圖重點(diǎn)程序段落分析 20

5.2 組態(tài)監(jiān)控設(shè)計(jì) 23

5.2.1 變量的定義 23

5.2.2 界面的設(shè)計(jì) 24

5.2.3 重點(diǎn)的幾個(gè)參數(shù)設(shè)定 24

5.2.4 組態(tài)界面對(duì)可編程序邏輯控制器的寫(xiě)入 27

致  謝 29

參考文獻(xiàn) 30

附錄Ⅰ 參數(shù)表 31

附錄Ⅱ 程序清單 32