How do I add time delay in input when use input and output synchronization with DAQmx?

[大D]

As you can see, I use "Sine Waveform Express VI" as a pulse signal output, but I only want to output a number of waveforms and then stop for a few seconds, while receiving continuously, I have Try to wrap the entire "Sine Waveform VI" or "DAQmx write vi" with the "while" or "for loop" structure and then add "Wait Function" inside.
The result signal input is still a continuous waveform signal, otherwise there is no output signal, not a pulse signal, I would like to know exactly what went wrong?

[AlysaOng]

Hi,

Sine Waveform.vi will only output a sine waveform signal, not pulse signal. What do you mean that "want to output a number of waveforms" 

and what do you exactly expect for the result signal input?