can a single trend display be configured for variables from two controllers in freelance 9.2 sp1
Voted best answer
Yes, why not?
Few questions, both controllers are in same project? if yes then export variables and use across the project in any controller and read/show it in any trend display you want.
If controllers are in different projects then get those variable in via eth send/rec or other communication in one controller and read/show it in any trend display you want.
Another option could be to use trend gateway, get all variables over OPC and read on any trend display.
Hope that helps...