Siemens SINUMERIK 840Di Function Manual page 749

The entry in a circular buffer location contains:
• A local axis
• A link axis
Fig. 2-7 Mapping of channel axes onto axis containers via logical machine axis image
Axis container entries contain local machine axes or link axes from the perspective of an
individual NCU.
The entries in the logical machine axis image $MN_AXCONF_LOGIC_MACHAX_TAB of an
individual NCU are fixed.
Axis Types, Coordinate Systems, Frames (K2)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
or
Detailed Description
2.1 Axes
2-19