PLC電鍍行車控制系統(tǒng)設(shè)計

電氣自動化論文編號:ZD188 西門子S7-200PLC  論文字數(shù):26769,頁數(shù):49

目錄
摘  要 1
ABSTRACT 2
目錄 3
第1章 前言 4
1.1研究背景 4
1.2.國內(nèi)發(fā)展現(xiàn)狀 5
1.3.本文的主要工作 11
第2章 PLC工作原理介紹 12
2.1.PLC發(fā)展歷程 12
2.2.可編程序控制器PLC的分類 13
2.3.PLC的構(gòu)成 14
2.3. 1CPU的構(gòu)成 14
2.3.2I/O模塊 15
2.3.3電源模塊 15
2.3.5 PLC的通信聯(lián)網(wǎng) 16
2.4.PLC 的應(yīng)用現(xiàn)狀 16
2.5.PLC 控制系統(tǒng)的發(fā)展前景。 17
2.6.PLC的選型方法 17
2.6.1輸入輸出（I/O）點數(shù)的估算  18
2.6.2存儲器容量的估算  18
2.7.機型的選擇 18
2.7.1PLC的類型 18
2.7.2輸入輸出模塊的選擇 18
2.7.3電源的選擇 19
2.7.4存儲器的選擇 19
第3章 PLC控制專用行車 19
3.1設(shè)計方案 19
3.2. 專用行車的結(jié)構(gòu)和工作原理 19
3.3西門子S7系列介紹 21
3.3.1．SIMATIC S7-200 PLC 21
3.3.2．SIMATIC S7-300 PLC 22
3.3..3SIMATIC S7-400 PLC 22
3.3.4工業(yè)通訊網(wǎng)絡(luò) 22
3.3.5人機界面（HMI）硬件 23
3.3.6 SIMATIC S7工業(yè)軟件 23
3.4、S7-200系列PLC的硬件配置 24
3.4.1 S7-200系列PLC的基本硬件組成 24
3.4.2 S7-200系列PLC的主要技術(shù)性能 26
3.5 S7-200系列 PLC的編程元件 30
3.5.1S7-200系列 PLC的存儲器空間 30
3.5.2 S7-200系列 PLC的數(shù)據(jù)存儲器尋址 32
3．6 PLC控制專用行車 33
第4章  專用行車遙控控制 39
4.1．TWH92組件介紹 39
4.2專用行車無線遙控控制 44
第5章 結(jié)論 46
致謝 47
參考文獻 48

摘  要

行車是在生產(chǎn)中用于輸送物料的重要設(shè)備。過去的傳統(tǒng)控制方式大都是采用人工操縱的半自動控制方式。然而在許多生產(chǎn)場合，這種半自動控制方式早已顯示出了它的缺點及很多的不足。所以，為了提高工作效率，促進生產(chǎn)自動化和減輕勞動強度，現(xiàn)在已經(jīng)需要實現(xiàn)行車的自動化控制。
本設(shè)計是將設(shè)計PLC在電鍍車行的控制系統(tǒng)，不僅可以大大提高生產(chǎn)效率，方便地實現(xiàn)各種控制功能，而且可以適應(yīng)行車所處的惡劣環(huán)境，無需在硬件上采取過多的措施。
本設(shè)計中的電鍍專用行車是通過行車帶動吊鉤前后運動及吊鉤的升降運動和吊蘭的左右運動來實現(xiàn)電鍍的過程的。行車帶動吊鉤前進/后退分別經(jīng)過各個電鍍槽、當分別到每個槽上方時，由限位開關(guān)通知PLC發(fā)出控制指令使吊鉤下降，當下降到槽中時又開始定時電鍍。定時結(jié)束后，吊鉤上升，上升后還需定時停留一段時間讓多余的液體流回槽中才能走向下一個槽，當結(jié)束后行車返回原位。
在對本系統(tǒng)的設(shè)計中完成了系統(tǒng)的硬件連線及軟件的設(shè)計，硬件連線包括PLC 的外圍接線、主電路及控制電路，軟件包括梯形圖及指令表。
關(guān)鍵詞：PLC； 電鍍； 專用行車

ABSTRACT Traffic in the production of important materials for transportation equipment.Past the traditional control method are the use of artificial manipulation of semi-automatic way. However, production in many cases, the semi-automatic control has long demonstrated its many shortcomings and deficiencies. Therefore, in order to improve efficiency and promote the production of automation and reduce labor intensity and now need to achieve the automation of traffic control. This design is the design of PLC control car in the electroplating system, not only can greatly improve the production efficiency, convenient to a variety of control functions, and can adapt to the harsh environment in which traffic would not need to take too much hardware measures. The design of a dedicated lane plating lead hook through the traffic before and after the exercise and the rise and fall hook Chlorophytum the left and right movements and movement to achieve the process of electroplating. Lane hook driven forward / backward, respectively, after each plating tank, when, respectively, to the top of each slot, the limit switch by the control commands issued to inform the PLC so that hook drop down to the present time and the beginning of regular plating tank. From time to time after the rising hook, up from time to time to stay after a period of time needed to allow excess liquid flows back to the next slot to slot, when the traffic back to the original position after the end. In the design of the system was completed to connect the hardware and software design, including the PLC hardware to connect the external wiring, main circuit and control circuits, software and instructions, including table ladder. Keywords: PLC; plating; dedicated traffic