sorry Jim, I'll do my best
thank you Tom for your answer, a snapshot of my software in max is attached to my first post
My CFP is a 2120, designed to work with LV RT 7.1, 8.0 is installed, and you propose me to install LV RT 8.2, ok, are you sure this is compatible with my hardware ? I'm ready to do this but my boss is more scary than me, I've seen the procedure to install new software on CFP (http://www.ni.com/support/fieldpoint/fpenet.htm) I suppose this is as easy to uninstall software to get back to a previous version but is it possible to make a total backup of all the firmware and the installed programs to be sure not to loose anything on the controller in the eventuality of a potential problem ?
I didn't find any information on this kind of procedure on the web
matthieu