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Viewing counter output (pulse train) in oscilloscope

Hi,

 

I am relatively new to labview. I am trying to visualize the pulse trains generated by counters. Specifically, I am using labview2010 and NI-6608 ctr0 to generate a 10Hz pulse train with duty cycle of 0.5. I connected ctr0 OUT terminal of the 6608 card to the signal wire of a BNC cable and one of the D GND output of 6608 to the ground of the BNC cable. The BNC cable was connected to Tektronix digital oscilloscope. I expected to see a nice pulse train of 0-5V at 10Hz in the oscilloscope. But I did not see any pulses. The vi I used is attached. I must be doing something wrong. Do I need to convert the counter pulse output into an analog out signal first? Can anyone help me how to visualize the counter outputs in an oscilloscope?

 

Thanks

Ani

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Hi,

 

Please disregard my previous posting. I found out that the vi I had attached in my previous posting actually works. The reason it did not work was I was using the wrong pins in the SCB-68 box to which the 6608 card was connected to. The reason why I had the used the wrong pins was that the pinout printed on the outside of SCB-68 box needs to be changed depending on what device it is connected to. I found this information in the SCB-68 manual. Now everything works.

 

Thanks

Ani

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