NI-USB-6002 USB time delay via Simulink

[Fer2401]

Hi! This is probably a very naive question, but the setup is the following:

- I have a 1x NI-USB-6002 receiving digital information on channels P0.0 - P0.4. This information is relayed to the PC via the USB cable, processed/recorded via a Simulink script and it generates a matrix file as an output. 

I understand that there is a delay between the time it takes from the device to detect any change in the input ports to the time is transmitted/written in Simulink, but I don't have a clear idea of the range of how long that takes (1 ms, 10 ms?).

Based on some empirical tests, it seems to be in the range of <10 ms, but I was wondering if there's any way in which I can measure more accurately the delay ? Or overall, to reduce the delay.

If more information is needed, please tell me. Apologies in advance for ignorance, I'm not an engineer and I'm still learning about the hardware and its limitations.

[santo_13]

It could be in the order of ms but it is non-deterministic due to the nature of the USB protocol.

[Fer2401]

Thank you for answering. I understand that it may not be possible to determine the precise latency at each sampling point, but do you have any recommendation as to how I could more accurately determine the range of this delay?