RTC
®
5 PC Interface Board
Rev. 1.9 e
10 Commands And Functions
350
Normal
List Command
mark_abs_3d
Function moves the laser focus at marking speed along a 3D vector from the current position to the
specified position (absolute coordinate values) within a three-dimensional process volume.
Restriction If the 3D option is not enabled or no 3D correction table has been assigned (see
select_cor_table), then the command will have the same effect as mark_abs. However,
microvectorization will be calculated like a 3D command and hence will influence the
effective marking speed in the XY plane.
Call
mark_abs_3d( X, Y, Z )
Parameters
X, Y, Z
absolute coordinates of the mark vector end point in bits as signed 32-bit
values; allowed range:
•for
X
and
Y
: [–8388608 … 8388607] (out-of-range values will be edge-
clipped). The complete value range [–8388608 … 8388607] is only usable
as a virtual image field e.g. for (enabled) Processing-on-the-fly applica-
tions. The current coordinates will be clipped to [–524288 … 524287] (real
image field size) during runtime directly prior to use of the correction table.
•for
Z
: [–32768 … 32767] (out-of-range values will be edge-clipped).
Comments • Except for the additional motion in the third dimension, this command functions simi-
larly to the mark_abs command (see the comments there).
• The X and Y axes can be controlled with 20-bit resolution, the Z axis with 16-bit resolu-
tion. The RTC
®
5 (in RTC
®
5 mode as well as in RTC
®
4 compatibility mode) automatically
upscales Z coordinate values internally to 20-bit values, so that the three dimensions of
space can be handled equivalently in terms of the supplied jump speed value.
• During calculation of the Z output value to the scan system, any previously defined
offset to the Z coordinate and focal length is taken into account (see page 126).
RTC
®
4
RTC
®
5 unchanged functionality (except for the extended range of values).
In RTC
®
4 compatibility mode, the RTC
®
5 multiplies the specified value for the X and Y
coordinates by 16 (the permissible range of values is correspondingly reduced). The value
range for Z coordinates is identical for the RTC
®
5 and RTC
®
4.
References mark_abs, mark_rel_3d, timed_mark_abs_3d
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