基于PLC和組態(tài)王的溫度控制系統(tǒng)設(shè)計

電氣自動化論文編號:ZD266 論文字?jǐn)?shù):20623,頁數(shù):55  有開題報告

 
 目 錄
第一章 前言 1
1.1 項目背景、意義 1
1.2 溫控系統(tǒng)的現(xiàn)狀 2
1.3 項目研究內(nèi)容 3
第二章 PLC和HMI基礎(chǔ) 5
2.1 可編程控制器基礎(chǔ) 5
2.1.1 可編程控制器的產(chǎn)生和應(yīng)用 5
2.1.2 可編程控制器的組成和工作原理 5
2.1.3 可編程控制器的分類及特點(diǎn) 8
2.2 人機(jī)界面基礎(chǔ) 8
2.2.1 人機(jī)界面的定義 8
2.2.2 人機(jī)界面產(chǎn)品的組成及工作原理 9
2.2.3 人機(jī)界面產(chǎn)品的特點(diǎn) 9
第三章 PLC控制系統(tǒng)硬件設(shè)計 10
3.1 PLC控制系統(tǒng)設(shè)計的基本原則和步驟 10
3.1.1 PLC控制系統(tǒng)設(shè)計的基本原則 10
3.1.2 PLC控制系統(tǒng)設(shè)計的一般步驟 11
3.2 PLC的選型與硬件配置 13
3.2.1 PLC型號的選擇 13
3.2.2 S7-200 CPU的選擇 14
3.2.3 EM231模擬量輸入模塊 14
3.2.4 熱電式傳感器 16
3.3 I/O點(diǎn)分配及電氣連接圖 17
3.4 PLC控制器的設(shè)計 17
3.4.1 控制系統(tǒng)數(shù)學(xué)模型的建立 17
3.4.2 PID控制及參數(shù)整定 19
第四章 PLC控制系統(tǒng)軟件設(shè)計 22
4.1 PLC程序設(shè)計方法 22
4.2 編程軟件STEP7--Micro/WIN概述 23
4.2.1 STEP7-Micro/WIN簡單介紹 23
4.2.2 梯形圖語言特點(diǎn) 24
4.2.3 STEP7-Micro/WIN參數(shù)設(shè)置（通訊設(shè)置） 25
4.3 程序設(shè)計 27
4.3.1 設(shè)計思路 27
4.3.2 控制程序流程圖 27
4.3.3 梯形圖程序 28
4.3.4 PID指令向?qū)У倪\(yùn)用 31
4.3.5 語句表（STL）程序 35
第五章 基于組態(tài)王的HMI設(shè)計 37
5.1 人機(jī)界面（HMI）設(shè)計 37
5.1.1 監(jiān)控主界面 38
5.1.2 實時趨勢曲線 39
5.1.3 歷史趨勢曲線 40
5.1.4 報警窗口 40
5.1.5 設(shè)定畫面 42
5.2 變量設(shè)置 42
5.3 動畫連接 44
第六章 系統(tǒng)運(yùn)行結(jié)果及分析 46
6.1 系統(tǒng)運(yùn)行 46
6.2 運(yùn)行結(jié)果分析 47
6.2.1 溫度趨勢曲線分析 47
6.2.2 報警信息分析 49
第七章  總結(jié) 50
參考文獻(xiàn) 51
致 謝 52

摘 要

 可編程控制器是一種應(yīng)用很廣泛的自動控制裝置，它將傳統(tǒng)的繼電器控制技術(shù)、計算機(jī)技術(shù)和通訊技術(shù)融為一體，具有控制能力強(qiáng)、操作靈活方便、可靠性高、適宜長期連續(xù)工作的特點(diǎn)，非常適合溫度控制的要求。
   在工業(yè)領(lǐng)域，隨著自動化程度的迅速提高，用戶對控制系統(tǒng)的過程監(jiān)控要求越來越高，人機(jī)界面的出現(xiàn)正好滿足了用戶這一需求。人機(jī)界面可以對控制系統(tǒng)進(jìn)行全面監(jiān)控，包括過程監(jiān)測、報警提示、數(shù)據(jù)記錄等功能，從而使控制系統(tǒng)變得操作人性化、過程可視化，在自動控制領(lǐng)域的作用日益顯著。
 本文主要介紹了基于西門子公司S7-200系列的可編程控制器和亞控公司的組態(tài)軟件組態(tài)王的爐溫控制系統(tǒng)的設(shè)計方案。編程時調(diào)用了編程軟件STEP 7 -Micro WIN中自帶的PID控制模塊，使得程序更為簡潔，運(yùn)行速度更為理想。利用組態(tài)軟件組態(tài)王設(shè)計人機(jī)界面，實現(xiàn)控制系統(tǒng)的實時監(jiān)控、數(shù)據(jù)的實時采樣與處理。實驗證明，此系統(tǒng)具有快、準(zhǔn)、穩(wěn)等優(yōu)點(diǎn)，在工業(yè)溫度控制領(lǐng)域能夠廣泛應(yīng)用。
關(guān)鍵詞：溫度控制  可編程控制器   人機(jī)界面   組態(tài)王

 Abstract
 
 Programmable Logic Controller (PLC) is a kind of automatic control equipment which is widely used in the industrial manufacture. It merges the traditional control technology, computer and communication technologies with a strong ability to control, flexible operation, high reliability and suitable for long-term characteristics of continuous work. It is very suitable for temperature control requirements.
 In the industrial field, with the rapid increase in the degree of automation, it is more and more important to monitor the process of control system for the users. The emergence of human-machine interface meets the needs of users. Man-machine interface can comprehensively monitor the control system, including process monitoring, alarm, data logging and other functions, so that the control systems have become user-friendly operation, the process of visualization and it will play more and more important part in the field of automatic control.
 This essay mainly introduces a design of temperature control system with SIMATIC programmable logic controller (PLC) and configuration software Kingview which is developed by Beijing Yakong Company. When programming, we use the PID control arithmetic software module which is contained in the program software STEP 7 -Micro WIN so that the program looks easier and operates more quickly. In order to monitor the control system and process data in actual time, we designed Human Machine Interface（HMI）with the configuration software Kingview. The result of experiment proves that this temperature control system could run quickly, accurately and have good stability, which is the advantage of the control system. This control system has been widely used in the industrial temperature control field.   With the continuous development of automatic science and technology, high-precision, intelligent, user-friendly temperature control system is the inevitable trend of development at home and abroad.
 Keywords:  Temperature Control    PLC   HMI   Kingview