Tool offsets
8.17 Special handling of tool offsets
Fundamentals
8-76 Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
TOWSTD Initial setting value for offsets in tool length wear
value
TOWMCS Offsets in tool length in MCS
TOWWCS Offsets in tool length in WCS
TOWBCS Offsets in tool length in BCS
TOWTCS Offsets of tool length at toolholder reference point
(orientable toolholder)
TOWKCS Offsets of tool length at tool head (kinematic
transformation)
Description
The most important distinguishing features are shown in the following table:
G code Wear value Active orientable toolholder
TOWSTD Initial value, tool length Wear values are subject to
rotation
TOWMCS Wear value in MCS. TOWMCS is
identical to TOWSTD if no
orientable toolholder is
active.
Only the vector of the
resultant tool length
rotates. Wear is ignored
TOWWCS The wear value is converted to
the MCS in the WCS
The tool vector is calculated
as with TOWMCS, i.e., the
wear value is ignored
TOWBCS The wear value is converted to
the MCS in the BCS
The tool vector is calculated
as with TOWMCS, i.e., the
wear value is ignored
TOWTCS The wear value is converted to
the MCS in the tool coordinate
system
The tool vector is calculated
as with TOWMCS, i.e., the
wear value is ignored
TOWWCS, TOWBCS, TOWTCS: The wear vector is added to the tool vector.
Linear transformation
The tool length can be defined meaningfully in the MCS only if the MCS is generated by
linear transformation from the BCS.
Non-linear transformation
If, for example, a non-linear transformation is active with TRANSMIT, the BCS is
automatically applied when the MCS is specified as the chosen coordinate system.
To Next Page
Loading...
