| 摘要 |
PURPOSE: A vending machine of a simplex V protocol having a coin mechanism of an MDB(Multi Drop Bus System) protocol and an interface board for the vending machine are provided to improve the selectivity of the coin mechanism by connecting the vending machine using the simplex V protocol to the coin mechanism using the MDB protocol. CONSTITUTION: A coin mechanism(30) receives or transmits communication contents of an MDB protocol. A main control unit(20) receives or transmits communication contents of a simplex V protocol. An interface board(10) is provided between the coin mechanism(30) and the main control unit(20) and changes the communication contents inputted from the coin mechanism(30) to the simplex V protocol to output them to the main control unit(20). The interface board(10) changes the communication contents inputted from the main control unit(20) to the MDB protocol to output them to the coin mechanism(30). |
