When you have Complex formulas, or very Long IF/THEN comparisons, the PBP compiler generates additional (T)emporary System variables to keep track of the intermediate results.

If those formulas are in the Interrupt Handler, it can cause big problems. But, if they are ONLY in the main program, they will NOT be a problem.

There's no way for DT_INTS to know if they are in the Handler or the Main program, so it gives a Warning (message) to let you know to look and verify that they are NOT in the handlers.

After you have VERIFIED that the formulas are NOT in the handlers. You can add this define to stop the Warning.
Code:
DEFINE  NO_T7_WARNING 1
hth,