How can I eliminate these errors (Code 10608 and 10609) in my Vi

[Q 598]

The two channels in the Vi are both differential analog signals from a difference laser system. One for the valve speed and the other for the way of the valve.In the main Vi is the start button for the measure.
I get both error codes(10608 and 10609)at the AI Read vi in the Acquire NScan Digital Trig Vi but i don't Know why?

[Spencer S.]

Greetings,

It appears that the VI you have included is a subVI from a larger application. Is this subVI the only data acquisition taking place? These errors are usually seen with competing acquisitions. If this is the only acquisition, can you run the Acquire N Scans Digital Trigger example, which ships with LabVIEW, without receiving these errors?

Let me know. Good luck with your application.

Spencer S.