I do not have LV7 loaded yet.
Hear is a link to my question and answer to using the 522.
Note: follow the directions exactly! The attributes all have to be set correctly for everything to work. I also seem toremeber there where some hardware jumpres involved(?).
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=135&HOID=5065000000080000002D550000&UCATEGORY_0=_18_%24_17_&UCATEGORY_S=0&USEARCHCONTEXT_QUESTION_0=FP-PG-522&USEARCHCONTEXT_QUESTION_S=0
Ben