| 摘要 |
A method of copying system data at the time of updating of a main control apparatus in a system using a computer, and a copying adaptor used for this method. The method comprises replacing the control program memory of a main control apparatus, when it is updated, by an adaptor having the function of transferring and retaining system data, transferring and storing the system data stored in the system data memory of the main control apparatus to and in the adaptor, and connecting the adaptor to a new main control apparatus to transfer the system data so as to store the system data in the system data memory of the new main control apparatus.
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