PJ,
Along with the example provided by JLV, take a look at the examples provided below.
Serial Communication for LabVIEW 6.1This library has many different examples of how to do serial communication. You will probably not need anything more than the basic communication but the rest is there if you want it.
Loopback Test for Serial PortThis is a great way to test your communication without having to connect to the device you are writing to.
Please include more detai
ls on the communication required if more help is needed.
Regards,
Matt Friedman
National Instruments