Data types except BOOL are allowed:
INT, DINT, WORD, DWORD, REAL, STRING, TIME
These data types can lie in the following areas:WX, DWX, WY, DWY, WR, DWR, WL, DWL, SV, DSV, EV, DEV, DT, DDT, LD, DLD, FL, DFL. For failure to make an assignment in the address field of the global variable list or for local variables, they are automatically placed in DT, DDT, FL or DFL by the compiler.