When a
large entertainment venue needed to link hot drink vending machines to a
central data base Opto 22 was selected for the job. Each of the nine
vending machines has a membership card reader and LCD. Using the Opto 22
serial I/O modules and Ethernet brains, the data is sent via the network
to the central data base. When a member swipes their card, the data is
compared with the available membership reward points. If there is
sufficient points a free drink is dispensed and message displaying the
balance of points etc.
Each Opto 22 SNAP rack can accept up to sixteen RS-232 ports for connection to the Ethernet network.
