| 摘要 |
<p>PURPOSE:To facilitate restoration and to eliminate a failure during the restoration by providing plural device address tables. CONSTITUTION:The 1st device address table 41 is a main device address table which is used currently. When the 1st device address table 41 needs to be altered owing to the extension of a device, etc., information necessary for power source control, i.e. the name and address of the device are inputted to the 2nd device address table 42 by an input means while the 1st device address table 41 is held as it is. A main device address table indicating means 2 inputs the number of a device address table to be used as the main device address table newly from the input means 1 and the number of the device address table to be instructed as the main device address table is stored.</p> |
