Khan,
I was not able to find a driver for the 4142 on ni.com, but you may want to look at the 4155. Someone else posted that this is a similar instrument and there are VXI PnP drivers for it on the Agilent web site. (That is assuming you do want VXI drivers).
They may at least give you a starting point.
However, on another post. I found out that when using 4155B driver in LabVIEW, the command set is very different from the manual and the 4142B instrument doesn't seem to recognize these commands.
You can do one of two things to use the CVI driver in LabVIEW. First, if you have CVI installed on your computer then you can create a dll out of the driver and call the dll from LabVIEW using the "Call Library Function". If you do not have CVI on your computer th
en you can use "Import CVI Instrument Driver" in LabVIEW. You can find this option in the Tools>>Instrumentation menu. In order to use this feature, you must have the CVI Run-time Engine. It is a free download at:
Current Driver Versions
The CVI Function Panel Conversion dialog box is designed to work with function panels for instrument drivers that use the standard set of VXIplug&play and IVI (Interchangeable Virtual Instruments) data types. Conversion might not work for function panels that use data types that exist outside that standard.
Zvezdana S.
