多工位流水線PLC及變頻控制系統硬件設計

電氣自動化論文編號:ZD901    論文字數:12614,頁數:38

目 錄

摘要I
1  前言1
    1.1  PLC控制技術的發展1
    1.2  工業流水線的發展2
    1.3  本次設計所作的工作3
2  PLC控制的多工位流水線硬件介紹4
    2.1  西門子S7-200 PLC的介紹4
 2.1.1  S7-200 CPU單元設計4
 2.1.2  S7-200的擴展模塊.5
 2.1.3  PLC的硬件接線及相關說明.6
 2.2  觸摸屏介紹7
 2.3  變頻器介紹9
3  PLC控制的多工位流水線硬件設計.10
 3.1  系統的總體硬件設計思路.10
 3.2  系統的硬件設計結構.11
 3.3  變頻器的硬件接線圖及參數列表.12
 3.3.1  變頻器的配線圖及與PLC的連接示意圖.12
 3.3.2  變頻器的參數列表15
4  PLC控制的多工位流水線軟件程序設計.16
 4.1  系統程序設計的總體思路.16
 4.2  S7-200PLC的程序設計.17
 4.3  觸摸屏程序設計22
5  PLC控制的多工位流水線控制系統的運行與調試25
 5.1  功能實現情況25
 5.2  本次設計完成的實物圖26
6  結論.32
致謝33
參考文獻34

摘  要

 隨著計算機技術的迅速發展，以PLC控制、變頻器調速、觸摸屏人機對話為主體的新型控制系統廣泛應用于各行各業。本文主要介紹了以PLC作為控制核心的系統。本系統以觸摸屏作為友好的人機操作工具，再通過對變頻器的控制，從而達到對工業流水線的理想操控。本設計主要采用西門子公司的S7-200系列PLC，觸摸屏使用TP070及相關軟件。論文著重論述了PLC在工業流水線上的應用，PLC對流水線工位的控制和相關的操作程序，以及對于觸摸屏畫面設計的描述。通過做畢業設計的過程，初步了解PLC在國內外的應用現狀，發展前景，以及與之相關的基本工作原理，邏輯指令等等。經過了將近三個月的研究與實踐，本畢業設計基本達到了當初制定的計劃與結果，即實現工位延時，工位加工等目的。設計的成果在工業控制領域具有一定的借鑒意義。同時，也為PLC控制技術在工業應用方面提供了參考。
 
關鍵詞：多工位系統、工業流水線、PLC控制、變頻控制

Abstract

With the rapid development of computer technology, a new control system subjected to the PLC, inverter speed, HMI dialogue is widely used in many fields. This article mainly introduces the system whose control center was PLC. The HMI was used as a friendly man-machine tool in this system, through the control of inverter, thus achieving the ideal operation of industrial assembly line. Siemens S7-200 series’ PLC was mainly applied in this design, TP070 and related software was used as the HMI. This paper focuses on discussing the PLC’s application in industrial assembly line, PLC’s control of station on the line and related operating procedures, and describing the related design of HMI’s picture. By doing the graduate design, I could preliminary understand the application status of PLC inside and abroad, development prospect, and the principle, logic instructions associated with it, etc After nearly three months’ researching and practicing, the original plan and result was basically achieving in this graduate design, that was the station delay and the station processing. The result concluded in this design is significant in the field of industrial control. Meanwhile, it provides the reference for PLC control applied in industry as well.

Keywords：multi-station system、assembly line、PLC controller、frequency control