Hello WT Carter,
When you say you are having communication trouble, does this mean that the modules are not properly being autodetected in Measurement & Automation Explorer (MAX)? I would recommend trying to start fresh by just deleting and recreating your SCXI system in MAX. See if the modules can be properly autodetected, and then test the signals acquired by the modules using the Test Panels in MAX. Also, try taking a look at
this post, and see if any of these suggestion help. If this does not help, try posting back with some more detailed information about the communication problems you are experiencing, and the steps you've gone through to configure your SCXI system.
Regards,
Travis G.
Applications Engineering
National Instruments
www.ni.com/support