基于PLC立体仓库控制系统设计.doc

基于PLC立体仓库控制系统设计 摘要 随着国民经济的飞速发展,自动化立体仓库必然会在各行各业中得到越来越广泛的应用。自动化立体仓库是现代物流系统的重要组成部分，是一种多层存放货物的高架仓库系统，由自动控制与管理系统、高位货架、巷道堆垛机、自动入库、自动出库、计算机管理控制系统以及其他辅助设备组成。本仓库模型控制系统是根据自动化立体仓库运行的基本原理而设计的。在整个控制系统中以PLC作为核心控制元件，专用键盘作为人机接口部件，控制步进电机来驱动导轨上做运动。以步进电机每转输出的脉冲数为基础，通过键盘对每个仓位予以地址编码，通过PLC对命令键盘进行扫描并得到相应的仓位号，当PLC接收到来自键盘的输入命令后，便输出对应仓位的脉冲数，经过驱动器驱动步进电机按设定的方向转动一定的角度，进而控制传动部件丝杠旋转进行准确的定位，以完成货物的存取功能。本文首先对该课题的可行性及课题实现的现实意义和价值进行了介绍；其次对该系统的硬件组成、结构、原理进行了阐述和分析；再次对本控制系统的核心——软件进行了编写，论文中有梯形图；最后对设计本课题所学到的知识和结论进行归纳和总结，并对本论文有待完善的地方进行扼要的说明。esign of Warehouse System Basedon PLC controlled Abstract With the rapid development of the national economy, automated warehouse in all walks of life will certainly be more widely used. Automated warehouse is an important component of modern logistics system part of a multi-layer storage of goods, overhead storage system, the automatic control and management systems, high shelves, retrieval machine, automatic storage, automatic library, computer management and control Systems and other auxiliary equipment components.???? The warehouse model control system is run under the automated warehouse designed the basic principles. In the entire control system to Siemens PLC as a core element, as a special keyboard human interface components, controls the stepper motor to drive the stacker exercise on the rail. Stepper motor output to the number of pulses per revolution, based on the keyboard to address code for each position, through the PLC the command to scan the keyboard and the corresponding position number, when the PLC receives input from the keyboard command, then the output Positions corresponding to the number of pulses, driven by stepper motor drive to set the direction of rotation by a certain angle, then control the transmission components for accurate positioning of the screw rotation to complete the cargo access.???? In this paper the feasibility of the project and the subject of the relevance and value realization are introduced; followed by the hardware compo