Greetings,
"Task" is absolutely correct. Furthermore, I would like to point you to the LabVIEW examples "Write 1 Pt to Dig Line (E).vi" and "Write to 1 Dig Port (E).vi". Both of these examples ship with LabVIEW, and they do a good job of demonstrating two of the most common methods of writing to the digital lines on National Instruments E-Series devices.
Good luck with your application.
Spencer S.