Siemens SINUMERIK 840D sl Operating Manual page 236

Generating a G code program
6.4 Fundamentals
236
4. Press the "Tool list" and "New tool" softkeys.
5. Then select the required tool using the softkeys on the vertical softkey
bar, parameterize it and then press the softkey "To program".
The selected tool is loaded into the G code editor.
6. Then program the tool change (M6), the spindle direction (M3/M4), the
spindle speed (S...), the feedrate (F), the feedrate type (G94, G95,...),
the coolant (M7/M8) and, if required, further tool-specific functions.
Operating Manual, 03/2013, 6FC5398-7CP40-3BA1
Milling