Agilent Technologies 8935 series e6380a manual Memory Considerations, Instrument Hardware Changes

	Operating Overview
	Saving and Recalling Instrument Setups
	BASE Settings
	The BASE register contains any field settings the user has saved that
	are different from the instrument preset state. It establishes a
	reference point for all future saves. If a base is not saved, the preset
	state is used as the reference.
	When you save an instrument setup, the new setup is compared to the
	base settings, and any differences are stored under the register name
	you supply. Because only differences are stored, a much larger number
	of instrument setups can be saved than if the contents of every field was
	saved.
	When you recall an instrument setting, every field is reset to the base
	settings. The saved settings are then used to re-establish the desired
	instrument setup.
	You can define your own base setting. If your desired settings are very
	different from the preset values, you may want to change the BASE
	register. This will decrease the amount of memory used to save each
	setup, and allow you to save many more setups.
	Since each save/recall register only contains the differences between
CAUTION
	the setup being saved and the present base register settings, changing
	the base settings causes all other saved setups to be erased from
	memory (including the POWERON setting if one has been saved).
	Unless you consistently change the same fields to the same value each
	time you use the instrument, you should avoid creating your own BASE
	settings.

Memory Considerations

When the Save/Recall field of the I/O CONFIGURE screen is set to Internal, programs are saved to the same non-volatile RAM used to create RAM disk(s) and run IBASIC programs. By saving a large number of instrument setups, you reduce the amount of RAM available to run programs. If you get a “memory overflow” message while trying to load a program, you must clear one or more save/recall registers to free RAM space.

Instrument Hardware Changes

Recalling a saved register that uses a hardware option that has been removed results in unspecified operation. Re-install the needed option before attempting to recall the associated register(s).

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