352  Programming: Special Functions
11.5 Global Program Settings (Software Option)
Basic rotation
The basic rotation function enables you to compensate a workpiece 
misalignment. The effect corresponds to the basic rotation function 
that you can define in the manual mode with the probing functions. 
The TNC synchronizes the values entered in the basic rotation menu 
or the ROT column of the preset table with the fillable form.
You can change the basic rotation values in the form, but the TNC 
does not write them back into the basic rotation menu or the preset 
table.
If you press the SET STANDARD VALUES soft key, the TNC restores 
the basic rotation assigned to the active preset.
Remember that you may have to return to the contour 
after activation of this function. The TNC then 
automatically calls the return-to-contour menu after the 
form is closed (see “Returning to the contour” on page 
532).
Please note that probing cycles with which you measure 
and write a basic rotation during program run overwrite the 
value defined by you in the fillable form.