Is there a delay time function with error in and error out?

[JÞB]

As Seen Here

 There are times when the ms Timer should be used with caution.

Wait +(ms).vi is a solid routine installed to support DAQ but does suffer at ms timer rollover.  (or did)

I have not inspected the underlying code of the OpenG function

the attached vi. (or it's predicessors) also has some issues in a non-deterministic OS.  Cursor movements and any other OS demands may not allow "Wait +(ms).vi" OR "CCI Delay.vi" to return promptly on time.  consider them BOTH to be wait AT LEAST mSec.  

I have required the exclusive use of "CCI Delay.vi"  (or it's predecessors) in test apps for over 7 years.