How to output a frequency variable pulse using DAQ 6211?

[Larry110]

I programmed a labview code to output some frequency variable pulses, and I can monitor the pulses through graph monitor. However, an oscilloscope cannot monitor these pulses. I'm not sure if these pulse output are real? Could any expert here help to check my program, please? Thanks.

[Himanshu_Goyal]

Hello Larry,

In your code you have done some basic Errors mention below.

1. DAQmx Start should be before read and write function

2. Once Task Close you cant use same reference for next operation

3. for continous read and write after start task keep read and write in wheel loop and close task after wheel loop.

For more understanding look some basic DAQmx examples.

Help-->find Examples--> 6211 or DAQmx....

[Larry110]

Hi Himanshu,

Thank you very much for pointing this out. I will double check the code.

Best,

Larry