In the Basic arithmetic folder of the Insert NC function window, the control offers the functions FN 0 to FN 5.
You can assign numerical values to variables using the FN 0 function. You then use a variable instead of the fixed number in the NC program. You can also use preassigned variables (e.g., the active tool radius Q108). Using the functions FN 1 to FN 5, you can make calculations with the variable values in your NC program.