Post on 16-Feb-2017
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VENDING MACHINEPLC PROGRAMMING PROJECTMEMBER : RAHUL MELKAMU
INTRODUCTIONVending machine is a machine that dispenses merchandise after customer deposits money. It provides various snacks, beverages, cigarette and other products to consumers. The idea is to vend products without a cashier. Items sold via vending machine. The first vending machine is believed to have been invented by Hero ofAlexandria, a first-century inventor. Most vending machines are designed as large safes. Most of vending machines are see-through or glass-front merchandisers. This is because it can show clearly and customer able to browse. Usually vending machines use a spiral kind of mechanism to separate and to hold the products. When the machine vends, the spiral turns, thus pushing the product forward and falling down to bevended.
This project will design and implement a coin operated vending machine controllerThe Project Involved:Design of vending machinePLC programmingConcept of digital logic
Vending Machine Features Vend 5 products Accept 3 kinds of coins(50c , $1 , $2) One coin can be entered at one time Self-starting with the initial coin First insert coins, then choose one product at a time!! (cannot vend more than one product at a time)
Design SpecificationsInputs Accept 3 kinds of coins(50c , $1 , $2)OutputSelected drinkButtons1 button for turn on/off programme (main switch)3 buttons for coin input5 buttons for select product1 button for reset program or cancel process Equipment used5 motors 2 LED2 resistor 330ohm
STARTENDWAIT FOR COINSPRITEL&PFANTACOKE ZEROCOKEIFTOTAL = $2SELECT DRINKRESET/CANCELDISPENSE DRINKFLOW CHART
This project proposal telling that the component that might be used. Our target is to gain knowledge about the basics of how a vending machine works using Programmable Logic Controller. The flowchart show the flow of process that happen when the user try to buy the product. vending machine respond to the users decision on deciding which product he/she want. As they press the switch, the can will drop tothe outlet corner to let the user get it.