Mirroring Of Tool Lengths - Siemens SINUMERIK 840Di sl Programming Manual

Tool offsets
8.17 Special handling of tool offsets
8.17.1

Mirroring of tool lengths

Function
Set setting data SD 42900 MIRROR_TOOL_LENGTH and SD 42910
MIRROR_TOOL_WEAR not equal to zero can be used to mirror tool length components and
components of the tool base dimensions with wear values of the corresponding axes.
Parameters
SD 42900 MIRROR_TOOL_LENGTH
Setting data not equal to zero:
The tool length components ($TC_DP3, $TC_DP4 and $TC_DP5) and the components of
the tool base dimensions ($TC_DP21, $TC_DP22 and $TC_DP23), whose associated axes
are mirrored, are also mirrored – through sign inversion.
The wear values are not mirrored. If these are also to be mirrored, setting data
$SC_MIRROR_TOOL_WEAR must be enabled.
SD 42910 MIRROR_TOOL_WEAR
Setting data not equal to zero:
The wear values of the tool length components, whose associated axes are mirrored, are
also mirrored - by sign inversion.
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Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
Fundamentals