RTC
®
5 PC Interface Board
Rev. 1.9 e
7 Basic Functions for Scan Head and Laser Control
147
Vector-Defined Laser Control
Vector-defined laser control makes possible to
linearly vary a signal parameter along a mark or jump
vector.
To initialize vector-defined laser control,
set_vector_control must be called to define the
signal parameter to be varied (via the
Ctrl
parameter) and to set the initial value of this signal
parameter (
Value
parameter).
For subsequent para-mark and para-jump commands
(i.e. parameterized mark and jump commands), the
RTC
®
5 will then linearly vary the selected signal
parameter along with the varying of coordinates. The
start value for the first para command is the initial
value defined with set_vector_control (
Value
parameter)
(1)
. The signal parameter will be microvec-
torized like a normal coordinate and linearly varied
until the defined end value (defined by the
P
parameter). The end value is the start value for a
subsequent para command.
The following para-mark and para-jump commands
are available:
• para_mark_abs, timed_para_mark_abs
• para_mark_rel, timed_para_mark_rel
• para_jump_abs, timed_para_jump_abs
• para_jump_rel, timed_para_jump_rel
If the 3D option is enabled, 3D para commands can
also be executed:
• para_mark_abs_3d, timed_para_mark_abs_3d
• para_mark_rel_3d, timed_para_mark_rel_3d
• para_jump_abs_3d, timed_para_jump_abs_3d
• para_jump_rel_3d, timed_para_jump_rel_3d
The para command para_laser_on_pulses_list can
be used for marking points.
Notes
• If a para command’s desired start value differs
from the previous para-command’s end value,
then the corresponding signal-parameter change
between both commands can be achieved via
para_jump_rel with a jump “to the same place”
or via a renewed call of set_vector_control with
a new initial parameter value.
If, between two para-commands, a list command
(e.g. set_laser_pulses, write_da_x_list or
write_8bit_port_list) is called, then the signal
parameter will also temporarily change. Even so,
the start value for the second para-command will
still be the end value of the first para-command.
Control commands such as set_vector_control
or commands that explicitly change the
Ctrl
parameter’s set value (e.g. write_da_x or
write_8bit_port) should be avoided during
processing of a list of para-commands.
• Vector-defined laser control has direct effects
only with para-commands (normal mark and
jump commands do not change the currently set
value of the
Ctrl
parameter), but has indirect
effects under some circumstances with normal
mark and arc commands or timed mark
commands (also see "General Notes", page 141).
If, in addition to vector-defined laser control
(
Ctrl
= 1…6), a position- and/or speed-
dependent or encoder-speed-dependent laser
control of the same signal parameter has simulta-
neously been activated, then the current signal
parameter value for vector-defined laser control
becomes the basis for the 100% value of position-
and/or speed-dependent or encoder-speed-
dependent laser control:
– During initialization of vector-defined laser con-
trol via set_vector_control, the 100% value
will be set to the initial value defined by
set_vector_control (
Value
parameter).
– During execution of subsequent para-com-
mands, the 100% value is continuously varied
in accordance with the current signal parame-
ter value.
– During deactivation of vector-defined laser con-
trol via set_vector_control (parameter
Ctrl=0
), the 100% value will be reset to the ini-
tialized value (
Value
parameter of
set_auto_laser_control,
set_auto_laser_params or
set_auto_laser_params_list).
• For para commands, a nonlinearity curve loaded
via load_auto_laser_control only effects signal
parameters selected via set_vector_control if
position- and/or speed-dependent or encoder-
speed-dependent laser control has been activated
for the same signal parameter (
Ctrl
= 1…6).
• During execution of para commands, the
Sky writing mode (see page 113) is not taken into
account (but also not deactivated).
(1) With
Ctrl
= 7 (focus shift), a hard jump of the Z coordinate
to the initial value might occur.
To Next Page
Loading...
