Driver help for HP 4155A or Agilent 4156C

[kyle23677]

Does anybody have some programmed VIs which use either of these drivers?  I have access to both of these devices, and I have the driver libraries for both, but I cannot seem to get a working VI.  I am new to Labview, so if anybody has some examples which use these device drivers or other suggestions I would really appreciate it.

Here's what I am trying to do:

1.) Apply 5V Potential to SMU1 (transistor gate)

2.) Apply 1V potential to SMU2 (transistor source)

3. Apply 0V potential to SMU 3 (transistor drain)

Then I want to measure the current from SMU2 to SMU3.  If this current is greater than some miniscule amount, then I want to apply a -10V pulse to SMU2 and then loop through until the substrate has been "burned" so that there is no current when there is a potential on the gate.

[GuentherS]

Hi Kyle,

both models are compatible to the command syntax of the 4145 models. This command syntax is the easiest and fastest way to program these models.

Switch to this mode by:

:SYST:LANG COMP

US

Then check your manual for the DV command, which lets you apply voltage to an SMU, and the TI command for measuring currents.

Have fun

Guenther

[kyle23677]

Can you elaborate on that?  I do not know what you mean by switch to that mode.  Sorry, I am new to Labview.

Thanks

[Dennis_Knutson]

The command has nothing to do with LabVIEW. It is a command from the instrument manual and you can issue it in MAX or write a quick VI to do it.

You say that you haven't been able to get the drivers to work. Can you explain what you mean? Wrong data, no data, error codes? Did you do any testing of some basic commands in MAX? Does MAX even detect the instruments? Because there a couple of different drivers, it would also help if you said which one you are using.

Message Edited by Dennis Knutson on 07-01-2008 08:25 PM