Timed Commands - Scanlab RTC6 PCIe Board Installation And Operation Manual

8.9 Timed Commands

"Normal" Vector Commands and
are executed in such a way that the laser focus moves
(1)
with a defined speed . This is fine for most laser
marking and laser material processing applications.
At the beginning of a jump, the
"Laser Active" Operation are switched off. The
Signals for "Laser Standby" Operation
on depending on the settings, see
"Enabling, Activating and Switching
Laser Control Signals", page
However, some applications require that each
Vector Command or "Arc" Command
exactly the same amount of time, regardless of its
spacial length.
In this case, it is necessary to specify a jump duration
or mark process duration (rather than the
jump speed or mark speed).
Timed commands allow specification of the duration
of the Vector Command or
accuracy of 10 µs (the output period of the
Microsteps) and in the range from 10 µs to
167,772,160 µs ( 2.8 min).
A vector or arc is split-up into the specified
(T Parameter) number of Microsteps.
For T  5, the following applies:

Length s of a Microstep
with t = integer( ( T + 5 ) / 10 )
Thus, jump speed and mark speed speed
automatically depend on the length of the vectors or
arcs.
(1) Either jump speed or mark speed.
(2) For T < 5, the command is carried out as non-timed
command, see Chapter 7.1.2 "Microstepping",
page 140.
RTC6 boards
Doc. Rev. 1.0.21 en-US
8 Advanced Functions for Scan Head Control and Laser Control
"Arc" Commands
Signals for
are switched
Chapter 7.4.1
184.
consumes
"Arc" Command with an
= L / t
(2)
The following timed commands are available:
• Vectors and arcs
– timed_jump_abs
– timed_jump_rel
timed_mark_abs
–
– timed_mark_rel
– timed_arc_abs
– timed_arc_rel
• Parametrized vectors
timed_para_jump_abs
–
– timed_para_jump_rel
– timed_para_mark_abs
– timed_para_mark_rel
• 3D vectors
timed_jump_abs_3d
–
– timed_jump_rel_3d
– timed_mark_abs_3d
– timed_mark_rel_3d
• Parametrized 3D vectors
timed_para_jump_abs_3d
–
– timed_para_jump_rel_3d
– timed_para_mark_abs_3d
– timed_para_mark_rel_3d
Notes
• After a timed command, a "normal"
Mark Delay or Polygon Delay
• Ellipses are fundamentally not available as timed
commands.
• With T < 5 µs, a timed command ist synonym to
its "normal" (= without [timed_*])) command.
• The total execution time of a timed command is
the sum of the specified time and the associated
delay, see also Chapter 7.2.2 "Scanner Delays",
page 147.
Jump Delay,
is inserted.
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