| 摘要 |
The machine operation controlling method by a main processing program formed of plural modules built in a microcomputer includes the steps of inverting the level of an operation monitor signal to first and second level according to first and second WD program arranged between different modules for supplying the operation monitor signal of the microcomputer to the microcomputer, supplying a signal for satisfying a condition to invert the level of the monitor signal from the first to second level by the second WD (watch dog) program according to a first check program, supplying a signal for satisfying a condition to invert the level of the monitor signal from the second to first level by the first WD program, starting to count time by sensing the inversion of the monitor signal from the second to first level, and supplying a reset signal to a reset terminal of the microcomputer when the counted time exceeds a predetermined time, thereby improving reliability.
|
