基于PLC的液體攪拌機(jī)控制電氣設(shè)計

1、學(xué)號自理工學(xué)院畢業(yè)論文題目：基于PLC的液體攪拌機(jī)限制電器設(shè)計作 者：南小飛屆別：2021屆院 別： 機(jī)械工程學(xué)院 專業(yè): 機(jī)械電子工程指導(dǎo)老師：張振職稱：講師完成時間：2021年5月5號基于PLC的液體攪拌機(jī)限制電氣設(shè)計 摘要伴隨著PLC單片機(jī)等許多處理器的開展,傳統(tǒng)限制模式的電機(jī)的數(shù)量已經(jīng)越來越 少了,而自動限制模式的電動機(jī)的數(shù)量那么越來越多.這是由于傳統(tǒng)的限制方式技術(shù)手段 落后、生產(chǎn)效率低等弊端已不能適應(yīng)企業(yè)生產(chǎn)的需要,本文主要是介紹使用西門子 S7-200實(shí)現(xiàn)對液體攪拌系統(tǒng)進(jìn)行的自動限制.基于PLC為限制核心構(gòu)成的用于兩種液體 自動進(jìn)料、自動攪拌和自動放料系統(tǒng)

2、的限制目標(biāo)、硬件組成、軟件設(shè)計及系統(tǒng)功能,能 模擬顯示液體攪拌系統(tǒng)工作的全部過程.系統(tǒng)硬件主要由S7-200可編程限制器、電磁閥、電動機(jī)以及液位傳感器器等組成, 編程軟件采用西門子編程軟件 STEP7-MICRO/WIN系統(tǒng)通過液位傳感器將采集到的現(xiàn)場 液位高度傳送給西門子PLC并由PLC對現(xiàn)場數(shù)據(jù)邏輯處理后,發(fā)出相應(yīng)的限制指令, 完成系統(tǒng)的自動限制.最后,系統(tǒng)使用接口與上位機(jī)相連實(shí)現(xiàn)PLC與計算機(jī)的通訊.系統(tǒng)不僅自動化程度高,靈活性強(qiáng),而且還具有在線修改功能,可以滿足不同生產(chǎn)工藝的 要求.關(guān)鍵字：PLC液體攪拌系統(tǒng),液位傳感器,電磁閥DESIGN OF ELECTRICAL CONTROL

3、LIQUID MIXERBASED ON PLCABSTRACTWith the development of PLC and single-chip and many computer processer, the number of traditional control mode of the motor has less and less, and the number of automatic control mode of the motor is more and more. Because traditional control mode disadvantages, low

4、production efficiency, backward technology can not adapt to the needs of enterprise production, this paper mainly introduces using Siemens S7-200 implementation of liquid mixing system automatic control,Based on PLC as the control core,which is used in the form of two kinds of liquid automatic feede

5、r, automatic feeding and automatic mixing system control target, hardware composition, software design and system function, the simulation shows that the fluid mixing system of all process.The system hardware is mainly composed of S7-200 programmable controller, electromagnetic valve,and other compo

6、nents of the motor and the liquid level sensor, programming software adopts Siemens STEP7 programming software -MICRO/WIN. System by the level of liquid level sensor will be collected to Siemens PLC,and after processing by PLC to field data logic, a corresponding control instruction, complete the automatic control system. Finally, system are connected to the PLC using the interface realization of PLC and computer communications. System is not only a high degree of automatic, flexibility,but also has the function of on-line modification,can meet the requirements of dif