JPS6212557B
PURPOSE:To increase the reliability of system, by antomatically delivering the request message subtracting the finally issued data to the control unit depending on the content of non-vo-latile memory at power failure and correctly subtracting the data at power failure. CONSTITUTION:The controller 1...
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Zusammenfassung: | PURPOSE:To increase the reliability of system, by antomatically delivering the request message subtracting the finally issued data to the control unit depending on the content of non-vo-latile memory at power failure and correctly subtracting the data at power failure. CONSTITUTION:The controller 1 controls a plurality of ticket selling machines 4, and the memory unit 5 stores the final sales instruction data to the ticket selling machines 4 to the unit 1. The machines 4 are provided with the non-volatile memory 11 storing the operating condition at power failure, and the request message subtracting the finally issued ticket data to the unit 1 is automatically delivered depending on the content of the memory 11 at power failure. Thus, by automatically subtracting the data to be subtracted from the file correctly at power failure and avoiding the discrepancy between the file content and the number of tickets, the reliability of system can be increased. |
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