Using Express VIs in LabVIEW

When you convert a LabVIEW SignalExpress project to a LabVIEW block diagram, your block diagram contains LabVIEW Express VIs wired together. Typically, each step in LabVIEW SignalExpress corresponds to an Express VI in your LabVIEW block diagram. When you double-click these Express VIs, LabVIEW displays a configuration view that is identical to the configuration view for the corresponding step in LabVIEW SignalExpress. You can reconfigure the execution of your VI in LabVIEW by resetting values in the configuration view. Unlike LabVIEW SignalExpress where you can change the configuration view options while LabVIEW SignalExpress executes, you cannot open the Express VI configuration view and change the settings while LabVIEW executes your VI. You must stop the VI, open the configuration view, make a change, and rerun the VI.

Note  Because the LabVIEW SignalExpress execution engine manages the configuration views for the Express VIs running in LabVIEW, you must have LabVIEW SignalExpress installed on the same computer that you are running LabVIEW in order for these Express VIs to function properly. If you do not have LabVIEW SignalExpress installed on the computer, you must convert the Express VIs into subVIs if you want to change their configurations.

Like most Express VIs, you can convert LabVIEW SignalExpress Express VIs to LabVIEW subVIs. When you convert LabVIEW SignalExpress projects into LabVIEW block diagrams, you might need to modify the low-level VIs rather than reconfigure the values in the Express VIs. To convert the Express VIs into subVIs to access the low-level VIs, right-click the Express VI, select Open Front Panel, and click the Convert button.