| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve a monitoring function by a display method that facilitates workers to grasp time-series changes to be watched in a screen display for a trend graph for process data regarding to an operating monitor system for a plant or the like. <P>SOLUTION: A trend display apparatus comprises an additional information input means for inputting additional information of the process data, an input means for inputting the display method for displaying the additional information on the display, an additional information setting means for setting the additional information to keep up with the trend graph and to be displayed based on the display method, and an additional information display means for displaying the additional information set by the setting means on the display apparatus together with the process data. <P>COPYRIGHT: (C)2004,JPO</p> |
