| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable with only a worker to change illuminance which has been preset in a memory in a central control device by connecting a setting element to a transmission line, and changing the illuminance value of a light adjusting terminal equipment stored in the memory of the central control device, from the setting element. SOLUTION: When 'initial illuminance setting' is selected on a menu image plane displayed by a liquid crystal display part of a setting element 100, display is switched to 'initial illuminance setting image plane' and shifted to 'inial illuminance setting mode', and the illuminance value 1x can be inputted for each area number on this image plane. When the area number and the illuminaiuce value 1x are set, the setting element 100 sets 'initial illuminance setting mode' and the area number to a transmit record mode/address part and sets the illuminance value 1x to a data part, so as to be outputted onto a transmission line 2. A central control device 1 monitors data on the transmission line 2, and upon identifying the 'initial illuminance setting mode', the central control device 1 stores the received illuminance value 1x in an illuminance value area corresponding to the received area number in a memory.</p> |
