I'm not really familiar with S series cards but yours doesn't have hardware timed digital I/O per the specifications so you can't use hardware timing.
You might be able to sync using software timing but I'm not sure exactly how and you would have timing jitter.
With M series cards you can use a counter for timing as in this document but I am not sure it will work for S series.
Hope this helps
Now Using LabVIEW 2019SP1 and TestStand 2019