| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a process controller system capable of transferring tracking data properly even if the size of a tracking buffer is small, without affecting executing time of a process controller even if a transfer error occurs. <P>SOLUTION: An arithmetic processing unit 15a of a process controller 11a in an on-line system divides tracking data, and writes into two partitioned tracking buffers 22a1, 22a2 alternately when the tracking data to be transferred is larger than the capacity of one of the two partitioned tracking buffers 22a1, 22a2. A tracking interface 14 transfers the tracking data written into the two partitioned tracking buffers 22a1, 22a2 to a process controller 11b in a standby system. <P>COPYRIGHT: (C)2003,JPO |
