Siemens SINUMERIK 840D sl Function Manual page 1451

Figure 18-39 Kinematic chain to describe a tool with orientation
Vectors, which describe offsets in the rotary head, are positive in the direction from the tool tip
to the reference point of the toolholder.
The following kinematic type is defined for machines with a rotary tool:
$TC_CARR23 using letter T
Machine with rotary workpiece
On machines with rotary workpiece, the vector l
than zero, this is ignored.
The kinematic chain for machines with rotary workpiece is shown in the figure below.
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
18.6 Toolholder with orientation capability
has no significance. If it contains a value other
1
W1: Tool offset
1451