
OPERATION
B–63444EN/01
8. DATA INPUT/OUTPUT
273
Of the external input/output devices, the FANUC Handy File uses floppy
disks as their input/output medium.
In this manual, an input/output medium is generally referred to as a
floppy. However, when the description of one input/output medium
varies from the description of another, the name of the input/output
medium is used. In the text below, a floppy represents a floppy disk.
Unlike an controller tape, a floppy allows the user to freely choose from
several types of data stored on one medium on a file–by–file basis.
Input/output is possible with data extending over more than one floppy
disk.
The unit of data, which is input/output between the floppy and the
controller by one input/output operation (pressing the
[READ] or
[PUNCH] key), is called a “file”. When inputting controller programs
from, or outputting them to the floppy, for example, one or all programs
within the controller memory are handled as one file.
Files are assigned automatically file numbers 1,2,3,4 and so on, with the
lead file as 1.
File 1
File n
BlankFile 2 File 3
When one file has been entered over two floppies, LEDs on the adaptor
flash alternately on completion of data input/output between the first
floppy and the controller, prompting floppy replacement. In this case,
take the first floppy out of the adaptor and insert a second floppy in its
place. Then, data input/output will continue automatically.
Floppy replacement is prompted when the second floppy and later is
required during file search–out, data input/output between the controller
and the floppy, or file deletion.
Floppy 1
File 1 File 2 File 3 File (k–1)
File k
Floppy 2
Continuation
of file k
File (k+1) File n Blank
Since floppy replacement is processed by the input/output device, no
special operation is required. The controller will interrupt data
input/output operation until the next floppy is inserted into the adaptor.
When reset operation is applied to the controller during a request for
floppy replacement, the controller is not reset at once, but reset after the
floppy has been replaced.
8.1
FILES
Explanations
D What is a File
D Request for floppy
replacement