Hello,
There is an example in the example finder, called "Basic Serial Write And Read", in which VI write some bytes to port, and then VI read all byte at the port. To have continuous communication you need to put read or write (or both - depending on your requirments) in the while loop.
For parameters of the communication you need to use property node. When you will be choosing propertys is property node, the parametres you want (for serial communication) are under Serial Settings. For reading more than one parametrer at the time you need to expand property node with resizing it vertically.
If you need more information please first tell what kind of embedded sistem you have and the version of LabVIEW.
Best Regards,
Gregor Černe
