| 摘要 |
<p>PURPOSE:To provide a trend graph alarm and display device which can clearly display the relation between an alarm value and a graph value and can easily analyze the alarm. CONSTITUTION:This device is provided with a hard disk 6 for collecting and storing the detect signal of an equipment to be monitored, CPU 4 for reading the detect signal stored in the hard disk 6 and converting this signal to data for trend graph preparation, CRT 1a for displaying the data for trend graph preparation converted by the CPU 4, ruled line display means 4 and 1a for displaying the ruled line of the alarm value when the detect signal exceeds a prescribed level on the trend graph display plane of the CRT 1a, cursor display moving means 3a and 1a for displaying a cursor on the trend graph display plane of the ruled line display means 4a and 1a and moving or setting this cursor along the time base of a trend graph, and alarm information display means 4 and Ia for displaying information related to the generation of the alarm when the detect signal exceeds the alarm value at the time of moving or setting the cursor with the cursor display moving means 3a and 1a..</p> |
