基于PLC的自动焊锡机控制系统设计

基于PLC的自动焊锡机控制系统设计

摘 要

随着现代技术的迅速发展，各种机械的应运而生，自动化已成为了社会发展的必然趋势，自动焊锡机也成为了工业生产中必不可少的产物。为了提高自动控制系统的可靠性和设备的工作效率，设计了一套以PLC为核心控制器的自动焊锡机控制系统，用来取代以往的较复杂的继电器—接触器控制。系统的核心部分采用了德国西门子公司生产的S7—200型PLC，因为在核心控制部分采用的是软件程序控制，从而在保证自动焊锡机正常运行这个要求的情况下，大大的提高了自动焊锡机故障检查与维修的方便性和容易性，同时还克服了手动操作带来的一些人为干扰因素，取得了良好的预期效果。

关键词：PLC，自动焊锡机，梯形图

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基于PLC的自动焊锡机控制系统设计

Design of automatic soldering machine control system based on

PLC

ABSTRACT

With the rapid development of modern technology, all kinds of machinery came into being, automation has become an inevitable trend of social development, automatic soldering machine has also become an essential product of industrial production.In order to improve the reliability of the automatic control system and equipment efficiency, the design of automatic soldering machine control system of a PLC as the core controller, is used to replace the more complex relay - contactor control. The core of the system with the production of Germany's Siemens S7-200 PLC, as used in the core part of the software program control, thus ensuring the case of automatic soldering machine uptime requirements, greatly improves the automatic soldering machines convenience and ease of troubleshooting and maintenance, but also to overcome the manual operation to bring some human disturbance factors, achieved the desired effect.

KEY WORDS: PLC,Automatic soldering machine,Ladder

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基于PLC的自动焊锡机控制系统设计

目 录

前 言 ................................................................................................ 1 第1章 概述 ...................................................................................... 2

1.1 自动焊锡机的背景 ............................................................... 2 1.2 自动焊锡机的意义 ............................................................... 2 第2章 硬件设计 ............................................................................... 4

2.1 自动焊锡机的结构及控制过程 ............................................ 4 2.2 PLC简介 ............................................................................... 5 2.3 PLC工作原理 ....................................................................... 6 2.4 PLC的选取 ........................................................................... 8 2.5自动焊锡机I/O分配表 ......................................................... 9 2.6 自动焊锡机外部接线图 ..................................................... 10 第3章 软件设计 ............................................................................. 11

3.1 自动焊锡机PLC控制顺序流程图 ..................................... 11 3.2 STEP7-Micro/WIN32简介 .................................................. 12 3.3 自动焊锡机梯形图 ............................................................. 14 3.4自动焊锡机语句表 .............................................................. 20 第4章 组态王仿真画面 ................................................................. 23

4.1 组态王简介 ......................................................................... 23 4.2设计监控画面 ...................................................................... 25 4.3定义数据变量 ...................................................................... 27 4.4变量动画连接 ...................................................................... 29 4.5应用程序命令 ...................................................................... 31 结 论 .............................................................................................. 33 谢 辞 ................................................................................................ 34 参考文献 .......................................................................................... 35 外文资料翻译 .................................................................................. 36

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