creo10 config.pro option documentation for: INTF2D_IN_ACAD_INSUNITS 
intf2d_in_acad_insunits
yes
, no
*
Controls which variable is used when importing a DXF/DWG file as a drawing.
yes
- Use the INSUITS
variable for units if available; otherwise, use MEASUREMENT
. If the value is 0, the units are set to inches.
no
- Use INSUNITS
if it does not contradict MEASUREMENT
; otherwise, use MEASUREMENT
.