| 摘要 |
<p>PROBLEM TO BE SOLVED: To smooth the running operation of an operator and to cope with a monitor request of an important item and an operation request of high urgency by managing a monitor screen to be displayed when a display request of the monitor screen is repeatedly made from an automatic monitoring means. SOLUTION: An automatic monitoring means 1 automatically selects a monitor screen that corresponds to a plant state which is preliminarily set based on process data that is sequentially inputted from a plant, outputs a display request and outputs it to an automatic monitor screen managing device 2. When the device 2 repeatedly receives a display request of a monitor screen from the means 1, it manages a monitor screen that should be shown on a display device 3, decides a monitored image which should be shown on the monitor screen in accordance with precedence of a monitored image and also makes the other overlapped monitored images wait for display. That makes it possible to notify the occurrence of an automatic monitored image without preventing the display of a monitored image that is now shown even when a display request of an automatic monitored image occurs due to change of a plant state in the middle of monitoring a monitor screen.</p> |
