RTC
®
5 PC Interface Board
Rev. 1.9 e
10 Commands And Functions
545
Normal
List Command
timed_para_mark_abs
Function moves the laser focus for the specified marking duration along a 2D vector from the
current position to the specified position (absolute coordinate values) within a two-
dimensional image field and, simultaneously as well as linearly, changes the signal
parameter selected via set_vector_control to the specified value.
Call
timed_para_mark_abs( X, Y, P, T )
Parameters
X, Y
absolute coordinates of the mark vector end point in bits as signed 32-bit
values; allowed range: [–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
applications. The current coordinates will be clipped to [–524288 … 524287]
(real image field size) during runtime directly prior to use of the correction
table.
P
End value of the signal parameter as an unsigned 32-bit value; allowed range:
dependent on the selection made via set_vector_control (
Ctrl
parameter),
identical with set_vector_control (
Value
parameter)
T
duration of the complete mark vector in microseconds (as a 64-bit IEEE
floating point value); allowed range: [0 … 167772160]; the parameter will be
rounded to an integer-multiple of 10; out-of-range values will be clipped.
If
T
< 5, then timed_para_mark_abs behaves like para_mark_abs.
Comments • Unlike para_mark_abs, the timed_para_mark_abs command doesn’t execute the
marking process with the specified (via set_mark_speed or set_mark_speed_ctrl)
marking speed. Instead, the speed (i.e. the number of microsteps) will be adjusted so
that the vector lasts as long as specified (see chapter 8.10 "Timed Vector and Arc
Commands", page 198). The total marking time is (for
T
5) the sum of the specified
(rounded) time and the set delays.
• timed_para_mark_abs requires two list entries. During runtime, the command’s part
on the first list entry is executed as a short list command and afterward the second part
is executed as a normal list command. Thereby, both command parts are executed
within the same 10 µs clock, unless further (previous) short list commands induce a
list_nop between the two parts.
•If
T
< 5, then timed_para_mark_abs behaves like para_mark_abs. Then it requires
only one list entry.
• The “laser active” laser control signals are automatically turned on at the beginning of
the command (or remain on after a directly preceding mark or arc command). The
defined scanner and laser delays will thereby be taken into account (see chapter 7.2
"Delay Settings for Synchronizing Scan Head and Laser Control", page 99). Note that
other delays are executed in Sky writing mode (see page 113).
Exception: zero-length mark commands (see notes on page 102).
• During the conversion of specified coordinate values into scan system output values,
any previously defined coordinate transformations, assigned correction tables etc. are
taken into account after successful microvectorization (see page 126).
RTC
®
4
RTC
®
5 new command
In RTC
®
4 compatibility mode, the RTC
®
5 multiplies the specified coordinate values by 16
(the permissible range of values is correspondingly reduced).
Version info Available beginning with version DLL 517, OUT 516, RBF 512
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