Stanford Research Systems DS345, Manual

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Arbitrary Waveform Composer
7-3
USERS GUIDE
Hardware Requirements AWC is designed to run on Windows systems running XP/2000/Me/98. The
DS345 Synthesized Function Generator must be equipped with option 01,
GPIB and RS232 interfaces. AWC communicates with the DS345 though an
RS232 interface or a National Instruments hardware implementation of the
GPIB interface. Since the AWC software was written with National Instruments
LabVIEW software development tools and utilizes the Virtual Instrument
Software Architecture (VISA) interface, running it requires that both the NI
LabVIEW Run-Time Engine version 6.1 as well as NI-VISA version 2.6 or later
be installed on your computer system. See installation instructions for details.
AWC runs on all CGA/EGA/VGA/HGC compatible graphics display hardware.
The display type is automatically determined when the program starts.
MENUS
File Menu The file menu allows the user to store and recall arbitrary waveforms from disk.
New New clears the current arbitrary waveform. AWC will check with the user to be
sure that the current waveform should be discarded.
Open Open recalls a previously stored arbitrary waveform, using a standard
Windows open file dialog box. The default extension for waveform files is .txt,
however, any other extension may be used. Stored data file should contain all
information necessary to restore AWC's state: the waveform data, sampling
rate, and trigger conditions. Once a file is selected, it will be loaded from the
disk and displayed. If the selected file has a form that is incompatible with
AWC, it will not be loaded and an error message will be displayed.
note : Loading a file with an improper format may yield unpredictable results
and/or may cause the program to hang. Refer to DATA FILE FORMAT on
page 7-7 for the correct file format. Note also that data files must use a period
as the decimal point specifier (e.g., 3.14159,
not 3,14159).
Save Save stores the displayed arbitrary waveform to disk using a standard
Windows save file dialog box. The data file stores the complete state of AWC:
the waveform data, sampling rate, and trigger parameters. Recalling the file will
completely restore AWC's state (except communication parameters).
Quit Quit exits the program.
Edit Menu The Edit menu is used to modify existing waveforms. This menu is enabled
only when there is an arbitrary waveform displayed on the screen.
Clear Clears the current waveform from the graph and memory.
Set (x1, x2) to DC This sets a segment within the waveform to a DC value. There are three
parameters for this selection. The first is the starting point number of the
segment. The second is the length of the segment in points, and the third is the