RTC6 boards
Doc. Rev. 1.0.21 en-US
2 Product Overview
57
• Processing-on-the-fly, see Chapter 8.6
”Processing-on-the-fly”, page 242
– two encoder input ports (RS-422) with 32-bit
counter for Processing-on-the-fly correction
with encoder signals on 2 axes, see
Chapter 9.3.3 ”Synchronization by Encoder
Signals”, page 298; alternatively:
Processing-on-the-fly correction with McBSP
signals, see Chapter 9.3.4 ”Synchronization
and Online Positioning by McBSP Signals”,
page 300
– 29-bit coordinates (virtual Image Field): objects
larger than the real Image Field are possible,
see Chapter 7.3.3 ”Virtual Image Field”,
page 169, and Chapter 8.6.6 ”Virtual Image
Field with Processing-on-the-fly”, page 252
– Up to 8 objects within the Processing-on-the-fly
track delay (between trigger and marking
position), see Section ”External Start”,
page 290
– Accurate “External Start”:
If accordingly configured by
set_control_mode, the encoder counter can
be reset by external start signals for
synchronizing a Processing-on-the-fly process.
The reset occurs fully simultaneously (without
10 µs jitter) with the external start signal.
– Compensation of 2D motions (xy-positioning
stage)
– Encoder-based Processing-on-the-fly correction
for the z axis (“FlyZ correction”), see
Chapter 8.6.11 ”Processing-on-the-fly
Correction for the z Axis”, page 257
Notice!
• The encoder counter direction of RTC4 boards
(includes RTC4 Ethernet Board and
RTC4 SCANalone Board) is opposite to that of
RTC5 boards and RTC6 boards.
Therefore, when changing RTC board you need
to either adapt the cabling or your
user program accordingly.
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