| 摘要 |
<P>PROBLEM TO BE SOLVED: To use advantages of redundant configuration constructed by unit of block to the utmost and to cope with error check even when a control storage device itself is not provided with an error check mechanism. <P>SOLUTION: An error detection part 22 performs check processing to a block which stores normal operation data for regulating operations of a controller 3 in a normal operation before a reading control part 21 reads normal operation data from redundant memories 11, 12. Error information by the check processing is held by an error information holding part 13. The reading control part 21 determines whether or not a sound block corresponding to a block where an error is detected like redundant configuration exists based on the error information held by the error information holding part 13, and when the sound block exists, reads the normal operation data. <P>COPYRIGHT: (C)2012,JPO&INPIT |
