Scanlab RTC6 PCIe Board - Parameter Changes; RTC6 Pcie Boards and Scan Systems with Scanahead Servo Control

RTC6 boards
Doc. Rev. 1.0.21 en-US
2 Product Overview
59
innovators for industry
• 8 3D correction tables can be used on the
RTC6 PCIe Board simultaneously with 8 recording
channels (see set_trigger, set_trigger4) and the
complete RTC6 List Memory. With
number_of_correction_tables, a user-defined
limit to less than 8 can be set to check for
incorrect user input.
• The virtual Image Field of the RTC6 PCIe Board is
now ±28 bit = 29 bit.
• You can set an appropriate Tracking Error
compensation value for 3D systems with different
Tracking Error behavior between the xy axes and
z axis, see set_timelag_compensation.
• The output synchronization of the RTC5 is
replaced by a cycle synchronization with the
RTC6 PCIe Board, see Chapter 7.4.10
”Synchronization of the RTC6 Clock Cycle and an
External Clock Signal”, page 207.
Parameter changes
– Laser Delays (parameter LaserOnDelay and
LaserOffDelay of set_laser_delays) as well as
LaserOnShift with Sky Writing commands have
a higher resolution of 1/64 µs.
For downward compatibility with RTC5 boards,
see step 3, page 61.
– In fact the parameter Timelag of
set_sky_writing_para is specified in 64-bit
IEEE floating point format (“double”;
1.0 = 1 µs) but on the RTC6 PCIe Board it is
actually executed with a resolution of 1/64 µs
resolution.
2.11.2 RTC6 PCIe Boards and
Scan Systems with SCANahead
Servo Control
• Only the RTC6 PCIe Board allows usage of
SCANahead servo control, for example, offered
by scan heads of the excelliSCAN series.
• If you configure the RTC6 PCIe Board by
set_scanahead_params for operation with an
excelliSCAN scan head, the laser control then
automatically takes the SCANahead servo
technology’s PreviewTime time into account (that
is, processing time for calculating and executing
scanner trajectories
(1)
). This ensures fuller usage
of dynamics and precision.
• activate_scanahead_autodelays lets you simply
and quickly place the excelliSCAN into operation.
Neither Laser Delays nor Scanner Delays need to
be determined or set.
• For further details, see the “excelliSCAN
Scan Heads – Functional Principle of SCANahead
Servo Control and Operation by RTC6 Boards”
Manual, which also describes SCA
Nahead-
sp
ecific commands.
(1) See Glossary entry on page 30.