6 – 28 HEIDENHAIN Technical Manual TNC 426, TNC 430
6.2 PLC Axes
You can assign the controlled axes individually to the PLC.
Remember that:
n PLC axes can be operated with following error (also called lag) or with
velocity feedforward control. The axis-specific jerk (MP1097.x and
MP1098.x) is accounted for.
n You can start more than one axis simultaneously. However, the axes are not
interpolated with each other.
n PLC axes are positioned by the shortest path if you enter a modulo value in
MP810.x.
With MP100.x you define for every traverse range which axes the PLC
controls and which the NC controls. Uppercase letters represent NC axes, and
lowercase letters represent PLC axes. To indicate axes that are not present,
mark them with a hyphen "-".
MP100 Designation of axes
Format: XYZABCUVWxyzabcuvw-
Input: Bits 0 to 8 correspond to axes 1 to 9
MP100.0 Traverse range 1
MP100.1 Traverse range 2
MP100.2 Traverse range 3
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