Digital output write lag

Hello,

I hope I am writing in the correct location.

We use .NET C# NIDAQmx API for Windows to write to NI 9472 digital output module with WriteSingleSampleMultiLine or WriteSingleSamplePort.

Normally it takes around 1ms to 2ms to write, but occasionally it goes up to 10, 15ms or even more. Is this normal behavior? We have no problems with a couple of milliseconds, but this occasional lag is really limiting our application.

All drivers are up to date. We also tested with official examples and tried Python and C and got the same results. Thanks!