| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it easier to use a trend graph display device by displaying a whole-period trend graph together with a partial-period trend graph. SOLUTION: This device is equipped with a display device which has a display screen 30, a graph information storage part which stores actual result data gathered for a certain period as graph information, an event processing part which instructs the display of graph information in the whole period as a trend graph and the display of graph information in a partial period as a trend graph, a whole-period trend graph display control part which displays the trend graph in the whole period and a cutout period of the trend graph in a partial period on a subscreen 36 of a display screen 30 according to the display instruction of the event processing part, and a partial-period trend graph display control part which displays the trend graph in the partial period on the main screen 34 of the display screen 30 according to the display instruction of the event processing part.</p> |
