Siemens sinumerik 840D sl Function Manual page 88

Detailed description
2.9 Orientation axes
Orientable tool holder with additive offset
On an orientable tool holder, the offset for both rotary axes can be programmed with the
system variables $TC_CARR24 and $TC_CARR25. This rotary axis offset can be transferred
automatically from the zero offset effective at the time the orientable tool holder was
activated.
Automatic transfer of offset from zero offset is made possible via the following machine data:
MD21186 $MC_TOCARR_ROT_OFFSET_FROM_FR = TRUE (offset of TOCARR rotary
axes from NPV)
Note
For more information about orientable tool holders, please see:
References: /FB1/Function Manual Basic Machine, Tool Offset (W1)
2.9.4 Orientation transformation and orientable tool holders
Note
Orientation transformation and orientable tool holders can becombined.
The resulting orientation of the tool is produced by linking the orientation transformation and
the orientable tool holder.
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Special functions: 3-Axis to 5-Axis Transformation (F2)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0