| 摘要 |
PURPOSE:To restore a device in a short time even when the device is in trouble by installing plural non-volatile storage means, permitting them to hold the same content, executing transfer and copying from the other storage means when one storage means is converted. CONSTITUTION:Same setting information is previously stored in both the non- volatile storage element 1 and the non-volatile storage element 2. When a unit 5 is in trouble, a maintenance worker operates a panel 4 after conversion and copies setting information from the non-volatile storage element 2 to the non- volatile storage element 1. When a unit 6 is in trouble, the maintenance worker operates the panel 4 after conversion, and copies setting information from the non-volatile storage element 1 to the non-volatile storage element 2. Thus, the device can be restored at an early stage even when the unit where the element storing setting information is loaded is in trouble and is exchanged. |
