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Agilent N518xA, E8663B, E44x8C, and E82x7D Signal Generators Programming Guide 325

Creating and Downloading User-Data Files

Save and Recall Instrument State Files

NOTE References to waveform files and some of the other data file types mentioned in the

following sections are not available for all models and options of signal generator. Refer to

the instrument’s Data Sheet for the signal generator and options being used.

The signal generator can save instrument state settings to memory. An instrument state setting

includes any instrument state that does not survive a signal generator preset or power cycle such as

frequency, amplitude, attenuation, and other user–defined parameters. The instrument state settings

are saved in memory and organized into sequences and registers. There are 10 sequences with 100

registers per sequence available for instrument state settings. These instrument state files are stored

in the USER/STATE directory. See also, “Signal Generator Memory” on page 281.

The save function does not store data such as Arb waveforms, table entries, list sweep data, and so

forth. The save function saves a reference to the waveform or data file name associated with the

instrument state. Use the store commands or store softkey functions to store these data file types to

the signal generator’s memory catalog.

Before saving an instrument state that has a data file or waveform file associated with it, store the

file. For example, if you are editing a multitone arb format, store the multitone data to a file in the

signal generator’s memory catalog (multitone files are stored in the USER/MTONE directory). Then

save the instrument state associated with that data file. The settings for the signal generator such as

frequency and amplitude and a reference to the multitone file name will be saved in the selected

sequence and register number. Refer to the signal generator’s User’s Guide, Key and Data Field

Reference, or the signal generator’s Help hardkey for more information on the save and recall

functions.

Save and Recall SCPI Commands

The following command sequence saves the current instrument state, using the *SAV command, in

*SAV 01,1

:MEM:STAT:COMM 01,1,"Instrument state comment"

If there is a waveform or data file associated with the instrument state, there will be a file name

reference saved along with the instrument state. However, the waveform/data file must be stored in

the signal generator’s memory catalog as the *SAV command does not save data files. For more

information on storing file data such as modulation formats, arb setups, and table entries refer to the

signal generator’s User’s Guide.

NOTE On the N5182A, E4438C, and E8267D, if a saved instrument state contains a reference to a

waveform file, ensure that the waveform file resides in volatile memory before recalling the

instrument state. For more information, see the User’s Guide.

Agilent Technologies E8257D User Manual

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