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北京信息科技大學(xué)
畢業(yè)設(shè)計(jì)(論文)
題 目:變頻試驗(yàn)臺(tái)直線運(yùn)動(dòng)機(jī)構(gòu)及基于S7-200速度示教系統(tǒng)控制軟件與上位監(jiān)控系統(tǒng)設(shè)計(jì)
學(xué) 院:機(jī)電工程學(xué)院
專(zhuān) 業(yè):機(jī)械設(shè)計(jì)制造及其自動(dòng)化
學(xué)生姓名: 房崇民 班級(jí)/學(xué)號(hào):機(jī)0405-27
指導(dǎo)老師/督導(dǎo)老師:李啟光
起止時(shí)間:2008 年 2月 25日 至 2008 年 6月 12日
摘要
本文簡(jiǎn)要介紹了PLC,變頻器和人機(jī)界面的特點(diǎn)及其在國(guó)內(nèi)外的發(fā)展?fàn)顩r,并介紹了PLC和變頻器通訊的概念。
本文對(duì)變頻試驗(yàn)臺(tái)直線運(yùn)動(dòng)結(jié)構(gòu),以及基于S7-200速度示教系統(tǒng)進(jìn)行了總體方案的設(shè)計(jì),并對(duì)其進(jìn)行了分布方案的劃分,設(shè)計(jì)出了整體機(jī)械控制臺(tái),并繪制出了電路原理圖和機(jī)械設(shè)計(jì)圖。在這基礎(chǔ)上計(jì)算編寫(xiě)出了變頻器的通訊協(xié)議,設(shè)置了PLC的自由口方式通訊,整體上控制了電機(jī)的起停,正反轉(zhuǎn)等。
由于模擬操作在工程上應(yīng)用越來(lái)越廣,本文設(shè)計(jì)出了通過(guò)可編程控制器,即PLC對(duì)變頻器的實(shí)時(shí)數(shù)據(jù)存儲(chǔ),并將其發(fā)送出去的程序,實(shí)現(xiàn)了PLC對(duì)手控操作變頻器的模擬。并繪制出了程序框圖。
關(guān)鍵詞:可編程控制器(plc),變頻器,通訊,協(xié)議,模擬
Abstract
This paper introduces the characteristics and the development of the situation at home and abroad of the PLC, converter and man-machine interface,and introduces the concept of Communication between the plc and converter.
In this paper, line motion agencies of the converter’s test-bed,and the teaching design of rate based on the S7-200 systems have been designed for overall programme,and the the distribution of its programme have been divised.And then, the overall design of the machine’ test-bed have been designde too,the map of the circuit’s methed,and the mechanical’s design have been drawed. On the basis of these,the communication’s agreements of the converter have been calculated and writed. And the way of the plc’s communication with the freedom port has been set up.For these,the running,stoping and the direction of the motor have been controled.
Because of the simulated operation have applied more and more widely on the project,the programming of controller have been designed to store the data of the converter on the real-time ,and send the data out in this paper. On the basis of these,the contorling of people to converter have simulated by plc,and the map of the Procedures have been drawed.
Key words: PLC, inverter, communication, agreement, simulation
目 錄
中文文摘
Abstract
第一章 緒論 1
1.1 變頻器的概述 1
1.2 可編程控制器PLC的概述 2
1.3 可編程控制器和變頻器通訊的概述 2
1.4 人機(jī)界面的概述 3
第二章 方案設(shè)計(jì)與準(zhǔn)備工作 4
2.1 設(shè)計(jì)準(zhǔn)備及方案設(shè)計(jì) 4
2.2 電路的設(shè)計(jì) 5
2.3 機(jī)械部分的設(shè)計(jì) 6
第三章 通訊協(xié)議的編寫(xiě)與計(jì)算 12
3.1 變頻器的參數(shù)設(shè)置 12
3.2 變頻器調(diào)頻調(diào)速 13
3.3 變頻器外部電壓控制調(diào)速 13
3.4 協(xié)議的撰寫(xiě) 13
第四章 可編程控制器的編程及通訊 20
4.1 可編程控制器plc編程對(duì)變頻器的控制 20
4.2 可編程控制器對(duì)變頻器的數(shù)據(jù)的實(shí)時(shí)存儲(chǔ) 22
4.3 存儲(chǔ)數(shù)據(jù)的管理 23
4.4 數(shù)據(jù)的取出 25
4.5 存儲(chǔ)數(shù)據(jù)的發(fā)送 26
4.6 人機(jī)界面控制設(shè)計(jì) 28
結(jié)束語(yǔ) 29
參考文獻(xiàn) 30
IV