Hello Labtek,
Depending on what DAQ card you have, doing this without external hardware shouldn�t be a problem. Please let me know exactly what card you are using, which development environment (LabVIEW, CVI, or other) you are using, along with versions, and any other specifics on what you are trying to do, and I�ll be happy to help you get this configured.
Have a nice day!
Robert M
Applications Engineer
National Instruments
Robert Mortensen
Software Engineer
National Instruments