摘要:自动售货机是一种可完成无人自动售货，集光、机电一体化的商业自动化设备。自动售货机是时代发展的产物，它为人们的生活带来了高效便捷的服务。24小时无人售货的系统使得人们在购物时更省力更经济，运营时需要的资本少、面积小，是解决人工费用上升问题、提高职工工作效率最有效的手段。从1999年我国自动售货机开始规模使用，由开始的好奇陌生，到现在的习以为常，并成为了生活中不可缺少的一部分。

　　　本文介绍的综合自动售货机，它可以对一切适合大小的罐装、袋装、盒装等商品进行24小时的无人自动售货。该自动售货机主要由纸币识别系统、商品驱动结构、退币机构、可编程控制器等组成，其中可编程控制器即PLC是各硬件模块的控制核心，也是自动售货机的控制板。利用三菱公司FX-2N系列PLC控制有利于提高自动售货机的稳定性，可靠性也便于管理维护。设计将以一次交易过程为例，分块进行编程并详细说明每个板块的工作任务。其中用到了到绝大部分的程序指令。程序涉及到了自动售货机工作的绝大部分功能。

关键词： 自动售货机；PLC；控制系统

Abstract:The vending machine is to be completed by unmanned vending, collection of light, mechanical, electrical integration, business automation equipment.Vending Vending machine is a product of the development of the times, it is efficient and convenient services to people's lives.24 hours of unattended vending system makes it more economical, less effort when shopping operations and needed capital is small, small size, is the solution to the rise of labor costs, the most effective means to improve the efficiency of workers work. vending machines in China began in 1999 into a large-scale use, by the beginning of the curious stranger, to take for granted now, and has become an indispensable part of life.

　　　Described in this paper is a comprehensive sales package goods vending machines, can all fit the size of cans, bags, boxes and other products for 24-hour unmanned automatic vending. The vending machine mainly by the notes recognition system, commodity drive structure, return money institutions, programmable controller and other components, including programmable controller which is the hardware modules of the PLC control core, is also the vending machine control panel.  Using mitsubishi company FX-2N series PLC control to improve the vending machine stability, reliability also facilitate maintenance management. Design will be a transaction process, for example, a program for detailed instructions and block each plate tasks Design will be a course of dealing, for example, block programming and detailed description of the tasks of each section.Among them the use of the most of the programming instructions. Program involving the vending machine work most of the function.

Keywords: vending machine； PLC； Control system