| 摘要 |
PURPOSE:To eliminate a network dedicated to broadcast and to obviate the necessity of synchronization of many computers by feeding a business execution computer with updated data in current database which has subjected to modification after reception of previous service notice and updating the copy of current DB in the computer. CONSTITUTION:Data are fed from a power system 1 through a data I/O unit 2 to a computer 3 and computation results of business execution computers 4a-4c are also fed through a LAM 10 to the computer 3. Current DB 5 in the computer 3 is rewritten and rewritten data and address are set at next data address. Upon receiving a use notice of current DB, the computer 3 takes out the time point when the current DB is copied and feeds the business execution computer with data from the index data in an updated data file 9 to s-1. Subsequently, index of that business execution computer in a management file 8 is modified to s-1. |
