
B–61404E/08
8. DATA INPUT/OUTPUTOPERATION
473
Files stored on a floppy can be deleted file by file as required.
Procedure for File Deletion
1 Insert the floppy into the input/output device so that it is ready for
writing.
2 Press the EDIT switch on the machine operator’s panel.
3 Press function
PRGRM
key and display the program screen.
4 Enter address
N
key.
5 Enter the number (from 1 to 9999) of the file to delete.
6 Press soft key
OUTPT
START
.
The specified file is deleted.
When a file is deleted, the file numbers after the deleted file are each
decremented by one. Suppose that a file numbered k was deleted. In this
case, files are renumbered as follows:
Before deletion after deletion
1 to (k–1) 1 to (k–1). . .
k Deleted. . . . . . . . . .
(k+1) to n k to (n–1). . .
Set the write protect switch to the write enable state to delete the files.
8.3
FILE DELETION
Procedure
Explanations
D File number after the file
is deleted
D Protect switch