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Trigger detection - DAQ Assistant - NI USB 6259

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Hello all,

 

I'm new here so I hope this is the correct section to post.

 

I'm having some troubles trying the following:

I'm a simulating an arbitrary signal and sending it (through the DAQ assistant) to an Analog Output Port (AO0) of my NI USB DAQ Device (6259).

This is connected to an Analog Input Port (AI0) with a wire and a resistance. I also connected the grounds of the input and the output.

 

I'm receiving the signal correctly but when I'm trying to count all the rising edges with a small loop, it doesn't count correctly, he only detects ~10% of it.

The period of the simulated signal should be 10ms, which should give me 100 rising edges / second. Now it only gives me 10 / second.

 

I've included my vi's (send.vi & receive.vi) as an attachment. Any help or advice would be greatly appreciated.

 

Friendly greetings,

Jan

 

 


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