
APPENDIX
B–63465EN/01
C. BOOT SYSTEM
119
In ordinary system activation, the boot system automatically transfers
files from FROM to DRAM in the background.
The user is not aware of this operation. However, the boot system must
be operated manually, from menu screen, when maintenance is to be
carried out or when the FROM does not contain a required file.
1 In system maintenance, for example, to replace a file in FROM
Operation: While pressing the <0> and <.> keys on the DPL/MDI at
the same time, turn on the power. Hold down the two keys
until the boot system screen appears.
2 When the FROM does not contain a file required to start the Digital
Servo Adapter
Immediately after the Digital Servo Adapter is turned on, the boot
system starts transferring files from FROM to DRAM. If, for some
reason, a file required to start the Digital Servo Adapter (NC basic) is
not in FROM or has been destroyed, the boot system is automatically
started.
C.1.1
Starting the Boot
System