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论文编号:ZD893 论文字数:16780,页数:57
摘 要
传统的西门子PLC实验教学一直采用S7-200系列的PLC,但是工业控制多采用S7-300系列PLC,而S7-200和S7-300这两个系列的PLC从工作原理到编程开发都有所不同,这样对学生以后的在PLC技术上的发展相当不利。因此本设计以S7-300系列PLC为控制核心,利用实验室的设备,结合气动技术、传感技术等技术,完成物料分拣系统,实现对材料的分拣,并在此基础上开发实验,旨在让学生在实验室中就能接触到S7-300系列的PLC,能独立完成物料分拣系统的设计,了解基于S7-300系列的PLC控制系统的设计方法,为以后的发展打下一定的基础。
关键词:可编程逻辑控制器、物料分拣系统、S7-300
Abstract
Siemens PLC traditional experimental teaching has been using a S7-200 series PLC, industrial control, however the use of S7-300 series PLC, while the S7-200 and S7-300 series of PLC both from the working principle of the development of both the programming different, so that the students in the PLC after the development of technically significant disadvantage. Therefore design to the S7-300 series PLC to control the core, the use of laboratory equipment, combined with pneumatic technology, sensor technology, such as technology, completion of material sorting system for sorting the material, and on this basis the development of experimental designed to allow students in the lab will be able to access to the S7-300 series PLC, the independent material sorting system to complete the design, understanding based on the S7-300 series of PLC control system design methodology, for future development to lay a certain basis.
Keywords:Program Logic Controller、Material Sorting System、S7-300
目 录
摘要……………………………………………………………………………………………...II
1 前言………………………………………………………………………………………...1
2 西门子可编程控制系统S7-300………………………………….….…………………3
2.1 可编程逻辑器概述………………………………………………………….……3
2.1.1 国内外PLC发展趋势………………………….……..……………….……….3
2.1.2 PLC的特点…………………..………………………..……………….……….4
2.1.3 PLC主要厂家介绍………..…………………………..……………….……….5
2.2 德国西门子S7-300 PLC………………………………………………………….....5
2.2.1 S7-300 PLC的系统组成……………………….……..……………………….5
2.2.2 S7-300 PLC的功能……..…………….…………..………..…………….……6
2.3 S7-300的编程语言……………………………………………………………….……7
2.4 Step 7编程软件…………………..……………………………………………….……8
2.4.1 Step 7简介……………………….……..……………….…………………….8
2.4.2 Step 7使用说明……..………………………..……………………………….9
3 物料分拣系统模型…………………………..…………………………………………...14
3.1 系统结构概况述………………………………………………………………………14
3.2 S7-314C-2DP………………………………………………………..……………...…14
3.3 传感器选型……………………………………………………………….…….……..14
3.3.1 电感传感器……………………………………………………………...…….14
3.3.2 电容传感器…………………………………………………………….………15
3.3.3 颜色传感器………………………………………………………….…………16
3.4 空气压缩机………………………………………………………….…….…………..17
4 控制设计…………………………………….……….……………………………………..19
4.1 分析系统功能……………………………….…………………………………...……19
4.2 设计控制要求………………………………………………...………………………19
4.3 地址分配………………………………………………………………………..…….20
4.4 工艺流程………………………………………………………………………..…….21
4.5 程序设计………………………………………………………………………..…….22
4.6 调试……………………………………………………………………………..…….29
4.7 系统面板与接线………………………………………………………………..…….30
4.8 控制结果分析…………………………………………………………………..……...31
5 结语………………………………………………………………………………...……….32
致谢………………………………………....…………………………………………………...33
参考文献…………………………………....…………………………………………………..34
附录一:基于PLC的物料分拣系统实验指导书……………………………………..35
附录二:基于PLC的物料分拣系统实验报告………………………………………..40
附录三:基于PLC的物料分拣系统程序梯形图……………………………………..44