Hi, 
I'm using labview 8.6 and I'm trying to use a ORIEL sterppermike with a 20025 controller. 
I have implemented a VI that has a stack of commands in a for loop. Every loop has the following sequence of commands: 
command 1) start the stepper 
command 2) wait for feedback to reach a certain number 
command 3) stop the stepper 
command 4) wait a certain time before starting again  
To start the stepper I use a subvi from the example folder:   
C:\Program Files\National Instruments\LabVIEW 8.6\examples\DAQmx\Counter\generate pulse.llb 
--> Gen Dig Pulse Train-Continuous.vi 
I don't understand why the sequence get stuck at command 1 and never gets to command 2. 
I attach the vi for completeness.  
Thanks to anyone that will help, 
Matteo