Jon,
I recently ran into this issue. To use the 9220 with cRIO Scan Mode Interface requires (minimum):
LabVIEW 2015, CompactRIO drivers August 2015, and LabView 2015 Real-Time module.
Reference:
ftp://ftp.ni.com/pub/gdc/tut/crio_software_versions.htm
On this page, Select: C Series modules and accessories, then NI 9220.
steve
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