RTC6 boards
Doc. Rev. 1.0.21 en-US
8 Advanced Functions for Scan Head Control and Laser Control
236
8.5 Controlling 2D Scan Systems and 3D Scan Systems
8.5.1 2D Scan Systems
Up to two 2D scan systems can be controlled by one
RTC6 PCIe Board.
The second one requires the Option “Second
Scan Head Control”, page 38.
When controlling two 2D scan systems, a separate
Image Field correction can be carried out for each of
the both scan systems.
By select_cor_table or select_cor_table_list, the
two correction tables are assigned to the respective
scan head connector, see also Section ”2. SCANHEAD
Socket Connector”, page 68).
To use two correction tables in a double scan
system configuration
(1) Load each of the desired 2D correction files by
load_correction_file(Name, n, 2)
(
n
= 1…8).
See also Chapter 8.5.3 ”Using Several
Correction Tables”, page 241.
(2) Assign a loaded 2D-correction table to the first
and the second scan head each by calling
select_cor_table(HeadA, HeadB)
with (
HeadA
and
HeadB
= 1…8).
(3) By set_offset, set_scale, set_angle or the
corresponding list commands, specify offset,
scaling factor and rotation to align the two Image
Fields precisely with respect to each other.
Notes
• If you are not using one of the scan head
connectors: assign the correction table 0 to it.
• The default setting for select_cor_table and
select_cor_table_list is
(1,0)
:
– For the first scan head, correction table #1 is
used
– At the second scan head, there are
no position outputs
• The RTC6 PCIe Board returns to this setting after
every load_program_file. If a different setting is
to be used, select_cor_table or
select_cor_table_li
st must be called again.
• T
he scan head connectors cannot be
simultaneously assigned:
– two 3D correction tables
– a 2D correction table and
a 3D correction table
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