| 摘要 |
A standard picture such as a circle, of which the magnitude can be varied in response to the present value of a main plant data signal (or significant data), is displayed in a picture-plane of a display means. The present values of a large amount of plant data being monitored is displayed along the above-mentioned standard picture. When all of the plant data represents the normal state to the present value of the significant data, a picture constructed by plotting spots which indicates the plant data in a picture plane of display means, may be identified with the standard picture. Thus, the present value of the significant data can be determined by the magnitude of the standard picture, and whether the plant state is normal or abnormal can be determined by the picture constructed by plotting the spots of the plant data. |
