Mirroring Of Tool Lengths - Siemens Sinumerik 840D sl Programming Manual

Tool offsets
7.3 Special handling of tool offsets
7.3.1

Mirroring of tool lengths

Function
When setting data SD42900 $SC_MIRROR_TOOL_LENGTH and
SD42910 $SC_MIRROR_TOOL_WEAR are not set to zero, then you can mirror the tool
length components and components of the basis dimensions with wear values and their
associated axes.
SD42900 $SC_MIRROR_TOOL_LENGTH
Setting data not equal to zero:
The tool length components ($TC_DP3, $TC_DP4 and $TC_DP5) and the components of the
basis dimensions ($TC_DP21, $TC_DP22 and $TC_DP23) are mirrored against their
associated axes, also mirrored – by inverting the sign.
The wear values are not mirrored. If these are also be be mirrored, then setting data
SD42910 $SC_MIRROR_TOOL_WEAR must be set.
SD42910 $SC_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 inverting the sign.
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Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
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