Probmème connection instrument USB à LabVIEW

[Cerine09]

Bonjour,

Je débute avec LabVIEW et les software NI et je rencontre un problème que je ne comprends pas totalement. J'ai fait le tour des forum est ne trouve aucune solution.

Mon problème est le suivant :

- J'ai un instrument Keysight "VNA USB Streamline P5008A". Je souhaite le contrôler sous LabVIEW.

- J'installe les software/driver de mon instruments comme précisé sur le site de Keysight. Tout ce passe bien.

- Je retrouve mon instrument dans le gestionnaire de périphérique Windows 10.

- Je détecte et effectue des mesures via le logiciel de Keysight.

Cependant :

- Je ne détecte pas mon instrument sous LabVIEW.

- Sur NI-Visa Driver Wizard, je n'arrive pas à installer mon instrument. Je reçois l'erreur "ERROR-1073807178: device descriptor error - value not valid bMaxPacketSize0 (must be set to 8, 16, 32, or 64 bytes)".

- Je ne vois pas mon instrument sur NI MAX non plus.

Aucune des solutions trouvées sur le site NI ne semble fonctionner. Je trouve sur les forums que cela peut être du à une compatibilité usb 3.0 avec les software NI. Or, mon instrument ne peut communiquer qu'en usb3.0.

Je serai très reconnaissante si quelqu'un a déjà eu ce problème et saurait comment y remédier.

Merci d'avance.

[TIDAD]

Hi, Kyesight provides software for its production for work with LABVIEW:

https://www.keysight.com/en/pd-2036130/command-expert?pm=PL&nid=-33002.992473&cc=AM&lc=eng

it should make the work easier.

[Cerine09]

Hello, thank you for your response;

Unfortunately, when I install Command Expert, I don't get the Keysight add-on in my LabVIEW. I don't understand why. I'm using LabVIEW 2020, so maybe there is a problem with this version ?

[TIDAD]

I can try to install Command Expert on my Labview 2020 to compare it with yours. I'll inform you later.
You can also try to configure your device in NI MAX, it should be visible there if all drivers are installed.

[Cerine09]

Thank you again. I'll wait for your update !

For the NI MAX, my device is not visible. I tried to add a new device but nothing works. Can't connect it with NI Visa Driver either.

[TIDAD]

Hi, 

if your device is not detected in NI MAX, then you should check if the drivers are installed for your device. The Command browser latest version from Keysight works fine with LABVIEW 2019, 2018. It should also work with LV2020. 

 When you connect non NI equipment to the PC, ensure that you also have an NI-VISA driver installed. 

If the built-in functions are not working for your device you can use SCPI commands from NI.

SCPI sends *IDN to the device and reads the model, name, and other information about the device. But first of all your device should be visible in NI MAX.

[Cerine09]

Hi, Thank you once again.

My co-worker tried some things. We managed to control the device with Command Expert.
For the LabVIEW issue, the add-on still don't work for LV 2020. My co-worker found that the latest version of CE(2019) is not compatible with LV2020. And it seems impossible to install the add-on manually.

We will explore other solutions.
Thank you for your help.

[TIDAD · Accepted solution]

Hi, 
I have tried to install it on my computer Command Expert. I had a problem of installing it as Windows 10 does not support Net framework 3.5, or it might be an administering problem. 
However, try on earlier versions of LabView.

Good Luck