| 摘要 |
<p>PURPOSE:To quickly recover the state of the illumination load by requesting the control data when a control terminal detects a power failure, and sending the control data from a main operation panel for illumination control in response to the request. CONSTITUTION:When the terminal power failure detecting means 25 of a control terminal 2 detects the power failure of the terminal 2, a data requesting means 26 requests the control data from a main operation panel 1. A request accepting means 14 activates a control data transmitting means 15 in response to it, reads out the control data of the terminal 2 from a memory means 11, and transmits the data together with the address to a transmission line 4. The terminal 2 having the same address receives the control data. The data are written into a control data memory 22 by the control of a data rewriting means 21. An illumination control means 23 controls the illumination load 5 with the control data in the memory 22. The control data are immediately resumed after a power failure, and the illumination state is recovered.</p> |
