Error 7 with Tegam4040 amplifier

[bravedonxiote]

I recently installed Labview 2014 along with all the other things I need (such as NI-motion, PXI stuff, etc.) and the install went successfully.

I currently have a PXI-1073. which contains a PXI-5152 and the TEGAM4040B instrumentation amplifier, and I have a MID-7602/7604 stepper motor driver that is all connected to the computer to control an experiment where I have to change the angle of an optic and blast it with a laser/collect amplified signals in sequence, etc.

When I reinstalled all the peripherals work fine except that I am now getting the following error whenever I run the sample program that TEGAM gave me to run the amplifier (ie TEGAM4040 - Control [Demo].vi). This .vi definitely worked before I installed Labview 2014. How do I go about troubleshooting this/what is wrong?

"Error 7 occurred at Call Library Function Node in Tegam4040 -- Open4040.vi->Tegam4040.lvlib:Tegam4040 - Initialize.vi->Tegam4040 - Control [Demo].vi

Possible reason(s):

LabVIEW: File not found. The file might be in a different location or deleted. Use the command prompt or the file explorer to verify that the path is correct.
=========================
NI-488: Nonexistent GPIB interface."

Help me LabVIEWwan Kenobi, you're my only hope... I have attached the TEGAM program .vi for convenience.

[DollaBrillz]

Hi,

This error generally occurs if you provide a path that does not exist for dynamic DLL loading. Do you get the same error when loading other DLLs, or just with this DLL particularly?

[bravedonxiote · Accepted solution]

I contacted the TEGAM engineer and we were able to get it sorted out with a new updated install package. However, thank you very much for your help. 🙂

[DollaBrillz]

I am glad you were able to resolve the issue! Thank you for letting us know!

[David-n-MO]

How the heck does that help me now 12 years later???

[rolfk]

Most likely a missing dependency. And since the original post is 12 years old and your Tegam DLL driver is quite likely just as old there is a very good chance that it is a Microsoft C Runtime dependency. Before Microsoft Visual C 2015 each Visual C compiler had its own C Runtime version that needed to be installed on the system. If that DLL was created in 2015 or earlier it is for sure compiled with an earlier version of Visual Studio and requires its specific C runtime support installed on every system.

Any software containing Visual Studio binaries, be it exe or dll, should come with a proper installer that also attempts to install the according C runtime version needed for them. Some C runtime libraries are installed by Windows itself, but on a Windows 10 or 11 system it is not so likely to have already a C runtime installed before the version that was required by Visual Studio 2015 or newer unless you have some other older applications installed that happen to have been compiled with the same old Visual Studio version.

Basically you need to find out with which Visual Studio version your DLL was compiled in and then install the according C Runtime version from this page: https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170 

Since you didn't attach your DLL (in a ZIP file as the forum won't allow to upload DLLs directly) I can't tell you which version that would be.

The manuals I can find seem to be all dated June 2012, so it is possible the according DLL may be compiled with either Visual Studio 2008, 2010 or 2012, unless they released later on some bug fixes.

[David-n-MO]

Thank you.  it has always irritated me when i find a solved topic that describes my problem exactly only to have it resolved outside of the forum with no hint of where to go. I have 5 of these boards that we ended up not using and when i finally do have an urgent application i discovered the  software CDs discarded just last week.

Thanks again

[rolfk]

I only found links with manuals for that board, no archives with DLL and LabVIEW drivers. Maybe you can try to contact Artisan Technology Group as they seem to sell possibly refurbished devices for this model. They may be able and willing to send you an image of the CD for a nominal fee. Tegam seems not to be in business anymore, and the company selling now some devices under this name has no PXI boards in their program and specializes mainly in high voltage standalone devices.

[David-n-MO]

Advanced Energy Industries, Inc apparently bought them in 2021.

We downloaded their driver (.lvlib), but the .dll is missing.

we've also sent them an email but have not heard back.

Thanks for your help.  I'll post whatever i find.