| 摘要 |
PURPOSE:To facilitate the designation of the data every scene stored in an external record medium such as a floppy disc, and prevent the undesired change of the data. CONSTITUTION:In a memory 4 in a dimmer operation table 1, a dimmer data 41 every scene set by an operation panel 3 and its set date data 42 are stored. To an attribute data 43, the change prohibition of the date data 42 or the cancel of the date data can be designated every scene. A control circuit 2 can store the memory contents of the dimmer data 41 and the date data 42 in a floppy disc 5. The retention of the memory content is conducted only to the scene in which the date data 42 of the memory 4 is not canceled, and different from the date data of the floppy disc 5. |
