| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent an original symbol or numerical value from being hidden due to the display of an operation window in a monitor controller for a plant or the like capable of displaying a multi-window. SOLUTION: The display position of a selected equipment symbol is read out, operation window display available positions are successively searched from the right side of a screen (S11, S12) whether the display position of a symbol mark is superposed to the display position of the window or not is judged (S13), and when both the display positions are not superposed to each other, the operation window is displayed on a current display available position (S14). When the display positions are superposed to each other, a point is moved to a succeeding display position (S15), and when the point exceeds the leftmost end, the point is displayed on the initial display available position (S17).</p> |
