| 摘要 |
<p>PURPOSE:To ensure the automated processing in a service interruption state and at the same time to reduce the damage due to the erasion of data, etc., by continuing and storing the accepted processes for a fixed time and accepting no new process in the service interruption state. CONSTITUTION:When a commercial power supply has a service interruption and a non-service interruption power supply device 3 produces a service interruption occurrence signal, a computer 2 starts a timer (t) for time counting. Then the accepted processes are carried on within a prescribed time tw of the timer (t) and at the same time the new processes are not accepted but filed in a memory. In case the service interruption is not recovered even after the time tw, the processes under execution if detected is canceled and stored in the same way. When the service interruption is recovered within the time tw and the recovery signals are fetched via inferfaces 4 and 5, the contents of the unaccepted processes are warned to an operator. Thus the operator can surely grasp the defective points when the service interruption occurs and then carry out the correct processes.</p> |
