| 摘要 |
<p>PURPOSE:To execute analysis processing as it is when a power source is instantaneously interrupted by restoring data stored at the time of service interruption, executing reset to a control part and moving it to a normal processing when a service interruption time is shorter than a reference value. CONSTITUTION:When the service interruption is detected by a service interruption detecting means 2, the condition of respective devices at such a time point and a control variable are stored in a non-volatile storing means 3 and the count of the service interruption time is started by a timer means 4. When the power source is restored the service interruption time and reference time are compared by a comparing means 6. When the service interruption time is shorter than the reference value, the service interruption defines it as the instantaneous interruption and initialization processing is not executed. Then, the data to be stored in the non-volatile storing means 3 are read and restored to processing at the time of the service interruption is executed by a second processing means 7. Thus, at the time of the instantaneous interruption, the processing is not initialized to the time of power source restoration but can be continued as it is from the time point of the interruption.</p> |
