| 摘要 |
PURPOSE:To improve flexibility in operating gasoline supply station by changing a gasoline supply system set by a POS by means of a gasoline supply system switching key and a pump selection key of an externally provided device. CONSTITUTION:When the pump of a gasoline supply device set for first-in system by a point of sales management terminal (POS) is changed to a last-in system for operation, the gasoline supply system can be changed by operating the gasoline supply system switching key and pump selection key. That is, the gasoline supply system switching key is pressed down, the gasoline supply system is switched, a gasoline supply device (pump) 2 is designated with the pump selection key. Accordingly, the pump 2 which has been set to the fist-in system by the POS 1 can be changed to be controlled by the last-in system. After the completion of gasoline supply, the gasoline supply level is read, the customer's designation is checked, transaction data are prepared, a slip is issued and thus, the gasoline supply can be completed. |
