How to identify two kvaser leaflight connected to PC?

[Zaigham]

I want to connect multiple Kvaser leaflights and read anything That can give me information about device Which is which. How can I do that

[Hooovahh]

Is this a suggestion to improve LabVIEW?  This forum is for posting an idea on how to improve LabVIEW to have some feature or ability it doesn't currently have so other users can vote on the idea and have NI implement it.

If this is not an idea for others to vote on then you posted in the wrong section.  I suggest either LabVIEW subforum, or the Automotive subforum.  That being said the answer to your question is to use the provided drivers to enumerate the hardware.

[Hooovahh]

Great well now that a moderator moved this here is what I suggest.  Go get the LabVIEW drivers from Kvaser.  They have a function called Get Channel Data Channel Name.  You provide an index, and it returns information about that hardware device.  I usually put this in a For Loop and read the first 20 devices, ignoring data that is returned with an error because the device doesn't exist.  The string returned will tell you information about the device, for instance the first two virtual devices will be returned as Virtual #0 (Channel 0) and Virtual #0 (Channel 1), what is returned is device specific so you'll have to see if there are any identifying information in this string like a serial number maybe.  Otherwise maybe you could plug them in one at a time, and that way will be able to know what device is what.

You might also get some help looking at the Kvaser Hardware Config which shows device information.

[Zaigham]

Thank you very much, it was really helpful. 

Excuse me for posting in the wrong forum originally. It was my first time.

[Hooovahh]

No worries, if you get some time read through the unofficial forum guidelines, or you can read NI's official documents on how to use the forums.

http://forums.ni.com/t5/Feedback-on-NI-Community/National-Instruments-Community-User-Guidelines/td-p...

http://forums.ni.com/t5/Feedback-on-NI-Community/Quick-Introduction-to-the-Forums-for-New-Users/m-p/...

http://forums.ni.com/t5/Using-the-NI-Community/NI-Community-User-Guidelines/td-p/3164638

[Minions]

Seeing how this was moved to the Automotive forum, is it safe to say that these instruments are being controlled through CAN?  Check their CRO_ID, DTO_ID, and Slave Address for differences.  If they are the same, you will need some information regarding the DBC or A2L files associated with these instruments and look within those files for some unique variable like Serial_Number[16] which shown here would be a 16-byte array containing the serial numbers of the instruments.

[Hooovahh]

The Kvaser leaflight is the CAN device connected to the PC.  OP didn't go into details but I'm assuming they want to talk to a CAN device using this hardware in LabVIEW, instead of one of the NI products.  As I mentioned Kvaser has some LabVIEW drivers available.