
APPENDIXA. BOOT SYSTEM
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(1) Parity information for system and user files
System files on flash ROM, which have names such as “NC BAS–1”
and “DG2SERVO,” have parity information embedded for each
management unit. If non–ASCII code characters or an underscore “_”
is displayed in the parity field when a file name is displayed on the
check screen, the flash ROM may have been destroyed or a damaged
file may have been loaded. Retry loading the file from the memory
card.
User files, which have names such as “PMC–NB0A,” do not have any
information embedded for any management unit. Non–ASCII code
characters and an underscore “_” may be displayed in the series and
version information display, but this does not indicate that the file is
damaged.
User files can be deleted from flash memory.
System files are protected so that they are not erased accidentally. It is
possible to overwrite system files using SYSTEM DATA LOADING.
(1)Select the SYSTEM DATA CHECK function of the system monitor,
then select FROM SYSTEM to display a list of files in flash memory.
(2)Position the cursor to the user file to be erased, then press the
DELETE
key.
(3)The prompt “DELETE OK?” appears.
(4)To delete the file, press the
INPUT
key. Otherwise, press the
CAN
key.
When the
INPUT
key is pressed, the file is erased.
D Note
A.2.2.4
Deleting user files from
flash memory