| 摘要 |
PURPOSE:To decide a fault of a microcomputer, by storing and utilizing the target value, the feedback amount, the operation amount and the control arithmetic result, respectively. CONSTITUTION:The microcomputer 1 fetches the target value and the feedback amount with a sampling cycle and then calculates the operation amount to actuate the control object 2. Then the computer 1 stores these data within a fixed time into the storage device 5. In such conditions, the computer 1 stops the occurrence of operation amount in case the fault detector 4 detects a fault. At the same time, a control operation is carried out by the computer 1 and with application of the target value, the feedback amount, the operation amount and the control arithmetic result each that are stored in the device 5. Thus the computer 1 is decided normal when all the above-mentioned values are regenerated and then decided faulty if just one uncoincidence is detected among these values with a display given at the display device 6. In such way, the fault of a microcomputer can be decided. |
