| 摘要 |
<p>PURPOSE:To secure an easy detection for the fault occurrence of the circuit by accumulating the time required for the program process at the centeal processor, informing the time-up signal to each terminal unit when the accumulated time reaches the prescribed value and then displaying the time-up signal to the display unit. CONSTITUTION:Terminal unit 9-1, 9-2 ... are connected to communication control unit 4 via communication circuits 8-1, 8-2 ..., and CPU1 is connected to unit 5. Then CPU1 starts each process program in a time-division way to execute the process to corresponding units 9-1, 9-2 and so on. In such data process system, the time involved in the process of each of process program J1, J2 and so on is accumulated through the monitor by time monitor program C1, C2 and so on. Then the time- up signal is informed to units 9-1, 9-2 and so on by processor 2 provided to CPU1 and via control unit 5 every time the accumulated time reaches the prescribed value to be then displayed to display units 10-1, 10-2 and so forth.</p> |
