The Design of Beverage Vending Machines Based on PLC

The vending machine is a kind of commercial automatic equipment that integrates light, machine and light. And it can finish to sell without vendors.Beverage vending machine can be 24 hours in the sale of beverage products without any limitation of place and time. Because it is very convenient and not only can save the time of customers, but also the vendors, thus it brings great convenience to the masses. This paper based on Siemens S7-300PLC and use modular to finish the design of beverage vending machines. And achieving four parts that they are coin realized modules, merchandise selection module, coins and merchandise display module.