The NCU 710.3 PN represents the first configuration level of the SINUMERIK 840D sl. Up to 8 axes are available in up to 4 machining channels which can be executed in up to 4 mode groups. Up to 8 axes/spindles are supported per channel. Interpolation is possible for a maximum of 8 axes with the CNC software for NCU (multi-axis interpolation option).

The basic version of the CNC user memory is 3 MB, and can be optionally expanded up to 9 MB.