Siemens SINUMERIK 840D sl Operating Manual page 270

Creating a ShopTurn program
7.18 Example: Standard machining
270
If a blank programmed under "CONT_1" is used, under parameter "BL",
the "Contour" blank description should be selected instead of "Cylinder".
When selecting "Cylinder", the workpiece is cut from the solid material.
Stock removal contour
Operating Manual, 02/2012, 6FC5398-8CP40-3BA0
Turning