Whether you have the latest PXIe 6570/1 cards, or the older PXIe 654x/5x/6x cards, TSSI's TD-ScanPro can generate data/patterns for both.
For the NT STS 6570/1 format, TD-ScanPro generates a complete file set (.digitiming, .digipat, .digilevel, .specs) ready to load directly into NI's digital pattern editor.
For the older 654x/5x/6x format, TD-ScanPro generates a complete file set in the HWS format that would require an API developed by NI's team called TSSI API v1.1.1 in order to load into LabVIEW. You will need to install the LabVIEW 2009 SP1 Runtime Engine in order to use the API.
More details at: Using TD-Scan with National Instruments High-Speed Digital Devices.
TD-ScanPro is available for free trial. Visit: www.tessi.com/td-scanpro