| 摘要 |
<p>PURPOSE:To improve the maintenance and inspection function of a control object device by displaying, evaluating, and storing an arbitrary inter-process transition time at the time of program execution and comparing it with a reference transition time. CONSTITUTION:An execution time monitor part 16 is started by an execution monitor 12 and holds the reference time of each inter-process transition time in a reference value table 18 for the purpose of monitoring the transition time between processes and calculates the process transition time by an elapse value table 17 holding the processing start and end times of each process and compares, operates, and evaluates it and stores results in a monitor information holding memory 19. The execution time monitor part 16 outputs execution time monitor information to a display device 2 and a printer 3 through an output processing part 11 in accordance with the execution time monitor method on an operation mode table 13. Thus, the maintenance and inspection function to find the time of adjustment or replacement of the control object device is improved.</p> |
