If you select , Control FPWIN Pro7 automatically selects the address area for storing the variable declaration depending on the data type and its address range.
BOOL, DUT ®WR or WL
INT, UINT, REAL, …, DUT ®DT, FL or LD
If the address range is not sufficient, you can choose between automatically adapting the compile options or using the next address area, if available (e.g. DT®FL®LD).
Using Assign first free address on an existing variable declaration will change the adress if a smaller offset is available.