hp54500_write_to_disk (ul_scopes)

	status.i4.v = hp54500_write_to_disk( dev_address.i4.v)

	 Writes a setup,waveformat or a pixel memory to HP54500 disk. The suffix
	 is supplied by the instrument depending on the source and file format.

	dev_address	address of scope set by gpib_select()

	This function returns ACNET status values as follows:

	CBS_OK			success
	CBS_INVARG		invalid device address
	otherwise		GAS error

	This function requires the following include files:

	ul_scopes_h:hpdefs_h

	Related functions:

	hp54500_change_dir, hp54500_display_wmem, hp54500_format_disk, 
	hp54500_get_disk_dir, hp54500_get_waveform, hp54500_init, 
	hp54500_load_from_disk, hp54500_message, hp54500_num_points,
	hp54500_set_acquire, hp54500_set_channel, hp54500_set_display,
	hp54500_set_root, hp54500_set_timebase, hp54500_set_trigger,
	hp54500_set_utilities, hp54500_set_waveform, hp54500_store_wmem,
	hp54500_write_to_disk, hp54500_num_screens, hp54500_del_disk_file.