| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a remotely monitoring and controlling system in which response delay to operation of a terminal unit is prevented in the case dimming control is carried out without increasing the traffic of signal wires. SOLUTION: When the starting of alteration of an amount of dimming of an illumination load by an operation part of a dimming operation terminal unit is instructed (R1 -R3 , T1 -T3 ), the starting of alteration of the amount of dimming is instructed (T4 ) to the dimming control terminal unit which controls dimming of the illumination load and that the alteration of amount of dimming is started is noticed (T4 ') to the dimming operational terminal unit. After that, the amount of dimming is changed at a prescribed speed by the dimming control terminal unit and in the dimming operational terminal unit, the instructed amount of dimming displayed on a display part is changed at a prescribed speed. When the alteration of the amount of dimming is instructed (R8 -R10 , T10 -T12 ) to be stopped by the dimming operational terminal unit, an instruction of stopping alteration of the amount of dimming is transmitted (T13 ) to the dimming control terminal unit and the instruction of stopping the alteration of the instructed amount of dimming is transmitted (T14 ) to the dimming operational terminal unit.</p> |
