| 摘要 |
PROBLEM TO BE SOLVED: To attain restoration in a state that control is continued without stopping a system. SOLUTION: An operation control part 61 is provided with a data transfer requesting function part 611, a request accepting function part 612 and a data transferring function part 613 and a transfer data generating function part 614 and a difference data generating function part 615 and a transmitted data update monitoring function part 616 and a data receiving function part 617. After restart, a data base stored in a main storage part 122 in another controller are requested, and fetched in its own main storage part 122.
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