Analog input and output module synchronization, cRIO-9035

[RuchaSherekar]

I am a student and new to LabVIEW.  I want to build PID controller for my project but before that I need to synchronize two modules which I am using with cRIO-9035. Basically I want to acquire signal with NI 9232(Input Module,24bit) and send it back to NI 9269(Output Module,16 bit).

I have successfully completed this task of acquisition and generation. However I am getting phase shift in the output signal. For further stages of my project , I want signals to be completely or nearly in phase, not much phase shifted.

I have been working on this task for quite long time but not getting where the error is.

Looking forward for the help.

Thank you in advance.

FPGA ViRT MainRT Main_ContinuedPhase diagram for sweeping singal(100Hz-3kz),(Green -Input, Red -Output)