| 摘要 |
PROBLEM TO BE SOLVED: To attain function reservation from an abnormal state by resetting the plural microcomputers of the destination of communication when communication can not be performed in constitution in which more than three microcomputers are connected with a communication line. SOLUTION: Communication which is being operated between a main microcomputer 1 and sub-microcomputers 2 and 3 is monitored by a communication monitoring means 4, and when communication can not be performed, the sub- microcomputers 2 and 3 are reset by a resetting means 5, and the processing is continued after the function restoration of the sub-microcomputers 2 and 3 in a prescribed time. Thus, function restoration can be attained when communication can not be performed in a system in which more than three microcomputers are connected with a communication line. |
