USB-6008 used to time short circuit period

[biodegraded]

I inherited a USB-6008 and have never used it.  I'm trying to measure the period over which a circuit is closed.  Can the USB-6008 be used for this?  I don't need extreme accuracy (within 0.1 sec is sufficient).  I'm fine using the internal PC clock.  

The input signal is simply a relay that is opens and closes.  I want to measure when the relay is closed. I don't currently have an installed version of LabView, so being able to do this manually with NI-DAQmx would be best.  Is that possible?

Any ideas?  I'm fairly new at this so simple explanations are much appreciated.  

[Tepig]

USB-6008 doesn't have internal clock for Digital Input so, you can use internal PC clock only.

If the application isn't complex, I believe you can run your application within 0.1sec.

But there is a possibility of delay once the load of CPU increases.

By the way, DIO on USB-6008 is open collector. Is it OK?

[biodegraded]

Thanks, Emboar.  To answer your question about DIO being open collector, I don't even know what that means, so I have no idea.  

Do you have any suggestions on how I would hook up the USB-6008?  As I said, I'm pretty new at this, so if you can point me to a tutorial or something, that would be helpful.

Thanks in advance.

[Tepig]

Read this user manual.

On page 16, you can see how to connect a switch to USB-6008.

http://home.hit.no/~finnh/videos/topics/labview_analog_io/371303.pdf

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