03-03-2017 09:20 AM
Hello
I have a measurement program in Visual Basic 2008 that communicates over GPIB with the instruments. This runs fine under Windows XP.
Under Windows 7 I have no built-in GPIB card but an USB/GPIB adapter. I checked the communication with "Agilent Communication Tester" and it worked, but the measurement program cannot build up a communication.
In the debugger I have found that the constructor for the GPIB driver fails. I can chose one out of two driver DLLs: "LangInt.dll" and "Ivi.Visa.Interop.dll". Both of them fail.
Are these DLLs not suitable for Windows 7 or for the USB/GPIB adapter? Which driver should I use else?
Thanks RR
03-09-2017 08:53 AM
Hi Ralph,
can you please post the driver versions you use at the moment as well as the name of the GPIB adapter.
03-20-2017 07:36 AM
Hello Melanie
Thank you for the answer. Sorry for being late. I waited the first days and then gave up.
Meanwhile I found the solution. On opening the device also subaddresses are opened but the Agilent driver which I used does not support subaddresses. On the XP system was a NI driver that supported subaddresses.
So the problem was not as I thought first the migration to win7 and I could bypass it.
Ralph