Table of Contents
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Table of contents
1
Introduction............................................................................................................................................. 1-1
2
Safety instructions .................................................................................................................................. 2-1
3
Description.............................................................................................................................................. 3-1
3.1
Product description .................................................................................................................... 3-1
3.2
Performance features ................................................................................................................ 3-2
3.3
Function ..................................................................................................................................... 3-3
3.4
System components .................................................................................................................. 3-4
3.5
System requirements ................................................................................................................. 3-5
3.6
Design of the SIMATIC VS120 processing unit ......................................................................... 3-6
3.7
Design of the sensor head with LED ring flash.......................................................................... 3-8
4
Image processing ................................................................................................................................... 4-1
4.1
General information ................................................................................................................... 4-1
4.2
Shutter Speed and Brightness ................................................................................................... 4-2
4.2.1
Different exposures and brightnesses ....................................................................................... 4-2
4.2.2
Disturbing contours caused by shine......................................................................................... 4-3
4.3
Generating models and detecting orientation ............................................................................ 4-5
4.3.1
Setting for the Precision parameter ........................................................................................... 4-5
4.3.2
Measures for optimizing object recognition ............................................................................... 4-6
4.4
Quality of the measured values ................................................................................................. 4-7
4.5
Geometric distortion................................................................................................................... 4-8
4.6
Main ROI and sub-ROI .............................................................................................................. 4-8
4.6.1
Example: Main ROI and 3 sub-ROIs ......................................................................................... 4-9
4.6.2
Example of the influence of sub-ROIs on the quality value ..................................................... 4-10
4.7
Job parameter .......................................................................................................................... 4-13
4.8
Search parameter .................................................................................................................... 4-16
4.9
Model type parameter .............................................................................................................. 4-17
4.10
Model sets................................................................................................................................ 4-19
5
Network and system integration.............................................................................................................. 5-1
5.1
Overview .................................................................................................................................... 5-1
5.2
System configuration over digital I/O ......................................................................................... 5-2
5.3
PROFIBUS DP system configuration ........................................................................................ 5-3
5.4
PROFINET IO system configuration.......................................................................................... 5-4
5.5
System configuration with Ethernet or RS-232 over Com server .............................................. 5-5
Vision Sensor SIMATIC VS120
Operating Instructions, Edition 02/2006, A5E00757507-01
iii
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Table of Contents
