The drive control is expanded modularly in steps of 3 or 6 additional servo axes by means of Numeric Control Extensions. Each NX10.3 component can control up to 3 additional servo axes and each NX15.3 component can control up to 6 additional servo axes.

The SINUMERIK 840D sl control handles coordinate transformation, motion control and PLC control for up to 31 axes, whereby the drive control for up to 6 servo axes is already integrated into the SINUMERIK 840D sl.

Data management for the NX10.3/NX15.3 components is located exclusively on the SINUMERIK 840D sl, making it much easier to replace components.