Release Notes
2520 SCPI Visual Basic Demo


V0.5  This version was released on 11/12/01, and incorporates the following changes from V0.4:

Add SRQ				Add SRQ to sweep readings, permitting sweeps that take longer 
				than a few seconds from causing a GPIB timeout error.

Fixed >500mA range for 
Single Pulse			Bug in <V0.5 didn't permit a single pulse of >500 mA

Fixed Current			Add defaults for txtDCcurrent, so that 5A box has an appropriate
				default value for a single fixed pulse.


V0.4

This version was released on 9/29/01, incorporates the following changes from V0.3:

Fixed bug for NI card:		Relocate code (inadvertently commented out in V0.3),
				that initializes the appropriate GPIB card to the frmGPIBSettings form
Misc minor tweaks


V0.3 

This version, released on 9/21/01, incorporates the following changes from V0.2:

Better support for NI and CEC:	Initial window/form pops up, "forcing" user to choose GPIB card type. 				Added option to save card type and 2520 (and 2510) GPIB address to 				file 2520Demo.txt, relieving user from re-entering card type on 				subsequent uses of the demo program.

Quitting the program:		Previously, quitting the program would not close all the open windows, 
				primarly the other chart forms.   Also, the program X quit worked 				differently from the menu File|Quit.  They now work the same, bringing 
				up confirm exit message box.

GPIB Settings Form:		Hide the 2510 setting info on initial running of program.  Previous 				version had the 2510 stuff displayed, when it should only be visible
				when in Expert Mode.


UNSUPPORTED FEATURES
(that is, capabilities of the 2520 not implemented in the demo. Hey, it's just a demo!)

Constant current sweeps (ie, multiple pulses (sweep) at a single current).
Filter command support.
Negative polarity on current source.
Negative polarity on pulse Voltage measure.
No saving of pulse data to a file.
