Error -1073807343

[jylalande]

Hi, I have an application running with LV 8.2. We are using the COM Ports to talk to other devices and systems. So far, so good. The application works fine on the development computer. I have installed LV 8.2 and Visa 4.2 on 4 different laptops. This is where it gets confusing. The application works on two of the four laptops. The laptops have the same XP image. We installed the aplication the same way on all four laptops. The application gives us an error when it tries to open the Visa.

This application was ported from LV 7.1 and had been running for one year without problems.

Has someone seen this before?

Jean-Yves

[rsw]

Hi,

Could you please include the hardware specs of the laptops for those that work and those that don't (just a generic model number will do) and I will look into this for you. Obviously it's not your code, but if possible could you include that on the forum (incase there is some node that acts strangely with hardware inside our knowledge/error database.

Also any additional information such as the hardware you are connecting to.

Thanks,

[smercurio_fc]

That error can be caused by a variety of things. Are you sure the same COM port is available on all laptops? Are you accessing the COM port by alias, or by an explicit VISA resource name? Does the COM port show up in MAX as addressable, without any errors? I've had situations where the COM port was visible to the OS, but MAX had a problem with it. Turns out it was a corrupt installation of VISA.

[jylalande]

We are running the application on the Toshiba Tecra A8 and A3. On some A3s it will work and other it will not. The same goes for the A8s. I have reinstralled the factory image prior to the install of LV 8.2 runtime and VISA 4.2 runtime and still have the problem.

[rsw]

Hi,

Being as you are having issues with the same hardware I would assume this to be a software issue. A reinstallation of VISA is a start, I would also swap the hardware and any cabling with those that you know do work. Also ensure you have the same privilages on each system i.e. you are logged in as an Administrator just incase this is an XP permission problem.

I will continue to look into this error for you as it's strange to have 1 thing error out and another not on the same hardware.

Thanks,

[NIDave]

I just encountered the same thing.  This time with LV 8.5.  It works on 3 out of 4 PCs that the code is installed on.  I am working to debug this before releasing the code.  I also tried the reinstall of VISA 4.2.   Did you ever find a solution? 

Thanks,

Dave

[NIDave]

I corrected the error by using the lower level names for the COM ports.  For instance COM2 became "ASRL2::INSTR"  This managed to solve my problems.  As for why that one PC worked with 8.2 and failed with LV 8.5 is beyond me but in the meantime that is a functional workaround and works on all the PCs involved.

Regards,

Dave

[rsw]

Hi Dave,

Apologies for the error you also encountered, I will add this to our database of issues and also include the workaround on a knowledgebase entry so others can solve the issue should they encounter it. Thanks so much for letting us know how you fixed the problem.

All the best,

[-1073807343]

Hi guys,

I have same problem here.

In my own case I was able to connect to an agilent N9320B using a usb-to-mini-usb cable from my desktop. However after i have taken readings for say 30 seconds then the error comes up on the Labview.

Pls what can I do. I need urgent assistance as it is strange that after some few readings the error probs up.

I can be reached on +12048073466.

Please see attachment

Thank you

[Dennis_Knutson]

No one is going to call you and please don't post proprietary files. Why don't you simply attach a png of the message?

What is your code doing? Is it just looping on a measurement? Hopefully, you aren't continually opening and closing the VISA session. I would also suggest you disable any windows power saving settings.