摘要:可编程序控制器(PLC)是以微处理器为核心,综合计算机技术、自动化技术和通信技术发展起来的一种新型工业自动控制装置。针对继电器控制系统可靠性较差、使用不够灵活方便等缺陷,利用PLC进行设计,达到了控制生产线的分拣、传送及进出库的目的。在系统中充分利用PLC在控制方面的卓越性能和触摸屏控制的优异功能,实现了生产线的启动平稳、运行可靠、故障率低的功能。
本毕业论文将PLC和触摸屏应用于物品分拣系统的自动控制中,分选精度有可编程控制器控制,通过触摸屏检测运行状态,可在线操作运行,实现物流分拣系统的设计。具有精度高、速度快、工作不受环境和时间限制,控制简单等优点。本设计完成后,能够代替人进行分拣操作,能够很大程度提高劳动生产率,提高分选精度,对促进整个物流系统的自动化有着重要的意义。8928
关键词:PLC控制;物流分拣;触摸屏Application of PLC in the material sorting transmission system
ABSTRACT:Programmable Logic Controller(PLC)is a late—model automatic equipment as core with microprocessor.Its development is based on computer technology, automatization technology and communications.At the present,PLC has become the most important automatic equipment and been applied widely, the degree and extent of PLC development are the symbols of automatic level in one country.
It has been designed specifically for the relay controlling system reliability defects such as relatively poor,using lack to go to the lavatory nimbly,making use of PLC to be in progress,has reached the purpose controlling the production line sorting,delivering and passing in and out of a warehouse’s.PLC is in the principle controlling preeminent aspect function and excellent HMI function in system,the starting having realized a production line operates stably,reliably,the malfunction leads the low function.
The automatic control of PLC and HMI used in logistics sorting system, sorting accuracy and programmable controller, touch screen operation state through detection, on-line operation, design and realization of logistics sorting system. With high precision, fast speed, work is not affected by the environment and time constraints, has the advantages of simple control. This topic design is completed, can replace the people were sorting operation, can greatly improve labor productivity, improve the sorting accuracy, is of great significance to the promotion of the whole logistics system automation.
Keywords:PLC controls logistics sorting HMI目 录
1. 绪论 1
1.1课题背景 1
1.2国内外研究现状 1
1.2.1国外自动分拣系统的广泛使用 1
1.2.2国内研发适合自己的分拣系统和技术 2
1.3课题研究的主要任务及要求 2
2. 分拣系统的介绍 3
2.1自动分拣系统 3
2.2自动分拣系统的特点 4
2.3 KNT-P902形状判别实训系统简介 4
3. 系统的硬件电路设计 5
3.1系统的硬件结构 5
3.2主要设备选择 6
3.3主电路设计 10
3.4控制电路设计 12
4. 系统软件设计 18
4.1 PLC控制系统流程图 18
4.2控制系统程序设计 19
5. 触摸屏设计 26
5.1触摸屏选型 26
5.2触摸屏欢迎画面 27
5.3触摸屏主画面 28
6. 控制系统调试 28
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