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Storing Data to
Disk
You can use the internal disk drive or connect an external disk drive for storage of instrument
states, calibration data, measurement data, and plot
files.
(Refer to Chapter 4, “Printing,
Plotting, and Saving Measurement Results”, for more information on saving measurement data
and plot
llles.)
The analyzer displays one file name per stored instrument state when you list the disk
directory. In reality, several
llles
are actually stored to the disk when you store the instrument
state. Thus, when the disk directory is accessed from a remote system controller, the directory
will show several
flies
associated with a particular saved state. The maximum number of
files
that you can store on a disk depends on the directory size. You can
delbre
the directory size
when you format a disk. See
Table
12-3 for the default directory size for floppy disks and hard
disks.
The maximum number of instrument states and calibrations that can reside on a disk is limited
Bytes free : is the available disk space. If your disk is formatted in
IJF’,
this value is the
largest contiguous block of disk space. Since the analyzer is reporting the largest contiguous
block of disk space, you may or may not see the bytes free number change when you delete
iiles If your disk is formatted in DOS, the number reported as bytes free is the total available
disk space. That number is updated whenever you save to or delete files from the disk.
A disk
file
created by the analyzer appends a
sufllx
to the
file
name. (This is on the analyzer’s
directory and is not visible.)
The
suffix
consists of one or two characters: the
ilrst
character is
the
file
type and the second is a data index. (Refer to
‘Iable
12-2 for the deilnitions of each
sufllx
character.)
124
Preset State and Memory Allocation