HP 8753E manual Storing Data to Disk

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.)

1 2 4 Preset State and Memory Allocation