| 摘要 |
<p>PROBLEM TO BE SOLVED: To contribute to environmental protection by reducing the power consumption at the time of monitor control over a plant by shifting a picture of small importance to minimum display level a certain time after an input device is operated without overlooking important change, etc. SOLUTION: The system is shifted to power-saving mode after the prescribed fixed time since the input device 3 has not operated any more to minimize the display contents of a CRT device 5, etc., reducing the power consumption. When the input device 3 is operated again or when important change occurs to the plant side, the power-saving mode is released to shift to normal mode and a normal plant monitor picture, a warning picture, etc., are displayed on the CRT device 5.</p> |
