Demande d'aide Driver Labview

[waldoemerson23]

 Bonjour

Je suis étudiant-stagiaire et ma mission est de piloter un moteur Diesel 4 temps refroidi par eau à l'aide de LabVIEW. Mon principal problème c'est que je n'arrive pas à établir la liaison USB. Je dispose d'un driver Agilent 34401 mais il ne détecte pas mon câble comme port USB. Quand je branche le câble, il s'affiche sous le nom: Périphérique USB générique et LabJack U12.

J'ai vraiment besoin d'aide si quelqu'un comprend mon problème.

[GRCK5000]

Est ce que tu peux partager ton program? et c'est le numero d'erreur qui s'affiche sur l'ecran quand tu essaies de fonctionner ton programme.

[LVNinja]

Please ensure that the USB cable is properly connected to the AGILE 34401. If there are any other usb cables, disconnect them: from the message you received, it looks like the computer assumes that there is a LabJack USB board connected. 

[LLindenbauer]

The Agilent 34401 does not have a USB connector. What you are connecting is a USB-Serial adapter, so your computer tells you that you have connected a USB-Serial adapter. It does not, and cannot know what is on the other end of the adapter.

There is probably a Labjack driver installed on the computer. Maybe that driver is interfering with the adapter. Maybe not. Maybe the adapter actually is a Labjack in disguise.

Is there a COM port showing up on the ports list? If yes, just try to use that one and see if it works. If not, try your USB cable on another computer (that hasn't seen any Labjacks before) and see what comes up.

Alternatively, check the cable for markings from the manufacturer and look it up.

[waldoemerson23]

Voici le code d'erreur généré: https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019MvLSAU&l=en-US

[waldoemerson23]

I have disconnested the other USB ports but the problem persists. This is the link error:  https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019MvLSAU&l=en-US

[waldoemerson23]

I have tried to plug it in to the other COM port but it doesn't show me my USB cable anymore. i have to try with another computer in which there's no LabJack tools installed.

[LabJackSupport]

I do not suspect that the issue is related to a LabJack driver. The U12 is a HID device and uses the generic Windows HID driver, not a custom driver.

We use 34401 meters for our internal testing and calibration and we have never encountered any sort of conflict or incorrect enumeration. The only thing we can think of is that the USB to UART cable is reporting a LabJack vendor ID and device ID and/or other LabJack USB descriptor info. The vendor ID is a number that we had to apply for and purchase from USB.org. We would suggest that you try a different cable, preferably one from a well known manufacturer like FDTI or Apple.