Scanlab RTC6 PCIe Board - Page 7

RTC6 boards
Doc. Rev. 1.0.21 en-US
Contents
7
innovators for industry
Ellipse Commands ...................................................................................................... 138
[*]Para[*] Commands ................................................................................................. 139
7.1.2 Microstepping .................................................................................................................. 140
7.1.3 Marking Single Dots ......................................................................................................... 141
7.1.4 Example Code (C) ............................................................................................................. 142
7.2 Delay Settings – Coordinating Scan Head Control and Laser Control .......................................... 145
7.2.1 Laser Delays ..................................................................................................................... 145
LaserOn Delay ............................................................................................................. 146
LaserOff Delay ............................................................................................................ 146
7.2.2 Scanner Delays ................................................................................................................. 147
Jump Delay ................................................................................................................. 147
Variable Jump Delays .................................................................................................. 148
Mark Delay ................................................................................................................. 149
Polygon Delay ............................................................................................................. 150
Variable Polygon Delays ............................................................................................. 151
User-defined “Variable Polygon Delays” ..................................................................... 153
7.2.3 Notes on Optimizing the Delays ....................................................................................... 155
Recommended Sequence ........................................................................................... 155
Automatic Delay Adjustments .................................................................................... 155
Potential Errors when Optimizing the Delays .............................................................. 157
7.2.4 Sky Writing ...................................................................................................................... 160
Sky Writing Mode 1 .................................................................................................... 160
Sky Writing Mode 2 .................................................................................................... 161
Sky Writing Mode 3 .................................................................................................... 162
Synchronization .......................................................................................................... 162
7.3 Scan Head Control ...................................................................................................................... 167
7.3.1 Reference System ............................................................................................................. 167
7.3.2 Image Field Size and Image Field Calibration ................................................................... 167
Typical Image Field ..................................................................................................... 168
Compatibility Modes .................................................................................................. 168
7.3.3 Virtual Image Field ........................................................................................................... 169
Coordinate Transformations in the Virtual Image Field ............................................... 169
7.3.4 3D Image Field ................................................................................................................. 170
Carrying Out Adjustment ............................................................................................ 170
Checking the z axis Calibration ................................................................................... 170
Testing 3-Axis Scan Systems with F-Theta Objective ................................................... 172
7.3.5 Image Field Correction and Correction Tables .................................................................. 173
Field Distortion ........................................................................................................... 173
Image Field Correction Algorithm ............................................................................... 174
Activating Image Field Correction ............................................................................... 174
2D and 3D Correction Files ......................................................................................... 174
Loading Correction Tables .......................................................................................... 175
Assigning Loaded Correction Tables ........................................................................... 175
1to1 Correction Tables ............................................................................................... 177
Inverse Tables ............................................................................................................. 177
ct5 Correction File Header .......................................................................................... 178
Converting Correction Files ......................................................................................... 180
7.3.6 Output Values to the Scan System ................................................................................... 181
Calculation ................................................................................................................. 181
Value Ranges .............................................................................................................. 181
Precalculation and Diagnosis ...................................................................................... 181
Clock Overruns ........................................................................................................... 182