square wave with USB 6001 or 6002

[salty]

Can I generate a hardware timed, 100 Hz square wave with a USB 6001 or 6002?

[j_bou]

Hello salty,

The specification document for both devices (found at the links below) indicates that hardware timed analog output is possible on both devices.

SPECIFICATIONS NI USB-6001:

http://www.ni.com/pdf/manuals/374369a.pdf

SPECIFICATIONS NI USB-6002:

http://www.ni.com/pdf/manuals/374371a.pdf

Each device supports a maximum update rate of 5 kS/s simultaneous per channel, hardware timed. Therefore, you should be able to generate a hardware timed 100 Hz square wave using either device using an analog output task.

Regards,

J_Bou

[salty]

Thanks J_Bou,

Thanks for the information and the confirmation. I was able to use one of the examples to produce the square wave.

[duryzaj]

Hi,

 with this devices can you get frecuency about 5000 Hz?

[salty]

I tried to generate a 5 kHz signal but was only able to generate up to 2.5 kHz.

[duryzaj]

Hi, you used a Square Waveform VI or something else?

[salty]

I used the analog output of the 6001 to generate the square wave.  I used the Voltage - Continuous Output.vi from the provided examples.

[duryzaj]

Thanks!

[dshukla]

Did the voltage-continuous. vi examples work for you using NI-DAQ USB 6001 ? 

Because for me it is not working, and then when I checked the requirements to run that circuit, nowhere it was mentioned about USB-6001

Could you please send me your vi file or help me with it?

I am fairly new to LabView and NI-DAQ.

Regards,

Devansh

[GarryR]

It works fine if you set it to work within the constraints of the USB-6001.  The sample rate for the USB-6001 is limited to 5kHz and the frequency output for the selected analog output must always be equal to or less than half the sample rate.