An image file from the RAD tool is just a zip file containing all of the files on the cRIO. What is on a cRIO is typically just compiled code, so I doubt you can get a block diagram from anything there.
Did you lose your code and are now trying to recover?
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
Unofficial Forum Rules and Guidelines
"Not that we are sufficient in ourselves to claim anything as coming from us, but our sufficiency is from God" - 2 Corinthians 3:5