Hi!
No, unfortunately direct communication between LabVIEW and this card is impossible. (Theoretically you can looking for examples, which delivered with this card and calling DLLs for accessing, r/w Dual-Port RAM and so on, directly from LabVIEW, or over DLL-wrapper, but this not very easy). So, better way - using OPC server, which normally delivered with this card. Over OPC you can get access to Profibus. You can use OPC.SimaticNET server, or OPC.SimaticNET.DP (inline) server. Better way - using over LabVIEW DSC, but you can also to get acces over DataSocket without DSC (if you have not more than 30 items for reading and writing)
With best regards...