Leuze LRS Operating Instructions
LRS - Line Range Sensor
Light section sensors
en 06-2018/03 50113404
We reserve the right
to make technical changes
Original operating instructions
© 2018
Leuze electronic GmbH + Co. KG
In der Braike 1
D-73277 Owen / Germany
Phone: +49 7021 573-0
Fax: +49 7021 573-199
http://www.leuze.com
info@leuze.com
Leuze electronic LRS 36
Table of contents
Figures and tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2 Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.1 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.2 Foreseeable misuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3 Competent persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4 Exemption of liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.5 Laser safety notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3 Operating principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1 Generation of 2D profiles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2 Limits of light section sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2.1 Occlusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2.2 Minimum object size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4 Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 Overview of light section sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1.1 Mechanical design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1.2 General performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1.3 Line Range Sensor - LRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2 Operating the sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2.1 Connection to PC / process control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2.2 Activation - laser on/off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2.3 Triggering - Free Running . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.2.4 Cascading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.3 Detection functions LRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.3.1 Inspection Task. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.3.2 Analysis Window (AW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.3.3 Definition of AWs and analysis results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Possible measure against laser occlusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Possible measures against receiver occlusion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Specific performance characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Typical areas of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Detection mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
PROFIBUS trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Trigger settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Cascading settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Analysis results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
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4.3.4 Application examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Zero check of cases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Single or multiple track presence control on transport systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.3.5 Creation of inspection tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.3.6 LRS teach algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
"Area Scan" teach (Area Scan Basic) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
"Background Suppression" teach (Area Scan Advanced) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
"Multiple Track Completeness Monitoring" teach (Track Scan). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Setting teach parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5 Installation and mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.1 Storage, transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.2 Mounting the LRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.2.1 BT 56 mounting device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.2.2 BT 59 mounting device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.3 Device arrangement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.3.1 Selecting a mounting location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.3.2 Aligning the sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.4 Attach laser warning sign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.5 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
6 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.1 Safety notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.2 Shielding and line lengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Shielding: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
General shielding information: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Connect the ground potential to the light section sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Connecting the cable shielding in the switch cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Connecting the cable shielding to the PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.3 Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.3.1 Connection X1 - logic and power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.3.2 Connection X2 - Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6.3.3 Connection X3 - switching inputs/outputs (only LRS 36/6) . . . . . . . . . . . . . . . . . . . . . . . 51
6.3.4 Connection X4 - PROFIBUS DP (only LRS 36/PB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Activation input InAct . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Trigger input InTrig. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Cascading output OutCas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Output "ready" OutReady . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Ethernet cable assignment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Switching outputs of connection X3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Switching inputs of connection X3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
TNT 35/7-24V
7 Display and control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7.1 Indicators and operational controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
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7.1.1 LED status indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7.1.2 Control buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7.1.3 Indicators in the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
7.2 Menu description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
7.2.1 Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
7.2.2 Operation/navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
7.3 Reset to factory settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
8 Commissioning and configuration. . . . . . . . . . . . . . . . . . . . . . . . . 63
8.1 Switching on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
8.2 Establish connection to PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
8.3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
9 LRSsoft configuration software. . . . . . . . . . . . . . . . . . . . . . . . . . . 66
9.1 System requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
9.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
9.2.1 Possible error message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
9.2.2 Device list update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
9.3 Starting LRSsoft/Communication tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
9.4 Parameter settings/Parameters tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
9.4.1 Task Parameters panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
9.4.2 Analysis Functions area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
9.4.3 Single Shot Mode area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
9.4.4 Global Parameters area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Alignment aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Status indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Command mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Menu navigation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Selecting values or selection parameters for editing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Editing value parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Editing selection parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Interrupting a reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Executing a reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Setting the default gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Setting an alternative IP address on the PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
PROFIBUS settings (only LRS 36/PB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Inspection Task Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Operation Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Trigger Output Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Light Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Field of View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Apply Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Edit Logical Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Edit Logical Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Evaluation for "Result Func." = "logical" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Evaluation if "Result Func." = "sum" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
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9.5 Detection function/Visualization tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
9.5.1 Evaluating saved detection data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
9.6 Menu commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
9.6.1 Saving parameter settings/File menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
9.6.2 Transmitting parameter settings/Configuration menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
9.6.3 Managing detection data/Measure Records menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
9.6.4 Zoom and Pan/toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
9.7 Definition of inspection tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Typical procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
10 Integrating the LRS in the process control (Ethernet) . . . . . . . . . . 90
10.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
10.2 Protocol structure: Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Protocol structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
10.2.1 Command number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
10.2.2 Packet number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
10.2.3 Transaction number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
10.2.4 Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
10.2.5 Encoder High / Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
10.2.6 Scan number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
10.2.7 Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
10.2.8 Number of user data words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
10.2.9 Evaluation telegram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
10.3 Ethernet commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
10.3.1 Elementary commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
10.3.2 Commands in command mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
10.3.3 Explanation of user data in command mode (command parameters) . . . . . . . . . . . . . . 100
10.3.4 Commands in detection mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
10.3.5 Explanation of user data in detection mode (command parameters). . . . . . . . . . . . . . . 108
10.4 Working with the protocol (Ethernet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
10.5 Operation with LxS_Lib.dll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Set Laser Gate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Set Actual Inspection Task. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Get Actual Inspection Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Set Scan Number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Set Single Inspection Task Parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Get Single Inspection Task Parameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Execute Area Scan Basic Teach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Execute Track Scan Teach. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Execute Area Scan Advanced Teach. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Ethernet Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Command without user data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Command with user data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
TNT 35/7-24V
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Table of contents
10.6 Operation with native C++ DLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
10.7 Additional support when integrating sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
11 Integration of the LRS 36/PB in the PROFIBUS . . . . . . . . . . . . . . 111
11.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Characteristics of LRS 36/PB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
11.2 PROFIBUS address assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Automatic address assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Address assignment with LRSsoft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Address assignment with membrane keyboard and display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
11.3 General information about the GSD file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
11.4 Overview of the GSD modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Output data (from viewing position of control). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Input data (from viewing position of control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
11.5 Description of the output data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
PROFIBUS trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Activation - Sensor activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Inspection Tasks - Selection of inspection tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
11.6 Description of the input data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
11.6.1 Module M1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
11.6.2 Module M2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
11.6.3 Module M3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
11.6.4 Module M4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
11.6.5 Module M5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Scan number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Sensor info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Sensor state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Evaluation results of the analysis window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Number of hit points (Current Hits) in analysis window 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Number of hit points (Current Hits) in analysis window 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
: : : : : :. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Number of hit points (Current Hits) in analysis window 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Number of hit points (Current Hits) in analysis window 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
: : : : : :. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Number of hit points (Current Hits) in analysis window 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Number of hit points (Current Hits) in analysis window 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
: : : : : :. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Number of hit points (Current Hits) in analysis window 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
TNT 35/7-24V
12 Diagnostics and troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 121
12.1 General causes of errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
12.2 Interface error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
12.3 Error messages in display (starting from firmware V01.40) . . . . . . . . . . . . . . . . . . . . . 123
13 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
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Table of contents
13.1 General maintenance information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
13.2 Repairs, servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
13.3 Disassembling, packing, disposing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Repacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
14 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
14.1 General technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
14.2 Typical detection range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
14.3 Dimensioned drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
15 Type overview and accessories . . . . . . . . . . . . . . . . . . . . . . . . . 130
15.1 Type overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
15.1.1 LPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
15.1.2 LRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
15.1.3 LES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
15.2 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
15.2.1 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
15.2.2 Accessories – Ready-made cables for voltage supply X1 . . . . . . . . . . . . . . . . . . . . . . . 132
15.2.3 Accessories for Ethernet interface X2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
15.2.4 Accessories ready-made cables for X3 (only LRS 36/6). . . . . . . . . . . . . . . . . . . . . . . . . 135
15.2.5 Connection accessories / ready-made cables for X4 (only LRS 36/PB) . . . . . . . . . . . . 136
15.2.6 Configuration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
15.2.7 Configuration memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Mounting devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Contact assignment for connection cable X1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Order codes of the cables for voltage supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Ready-made cables with M 12 connector/open cable end . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Ready-made cables with M 12 connector/RJ-45 connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Ready-made cables with M 12 connector/M12 connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Contact assignment for X3 connection cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Order code of X3 connection cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Contact assignment for X4 connection cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Order codes for X4 connection accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Order code of PROFIBUS connection cables for X4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
TNT 35/7-24V
16 Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
16.1 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
16.2 Revision History / Feature list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
16.2.1 Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
16.2.2 Configuration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
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Figures and tables
Figures and tables
Figure 2.1: Laser apertures, laser warning signs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 2.2: Laser warning and information signs – supplied stick-on labels . . . . . . . . . . . . . 14
Figure 3.1: Light section sensor design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 3.2: Occlusion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 3.3: Typical minimum object size LRS 36…. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 4.1: Mechanical design of Leuze light section sensors . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 4.2: Activation input signal sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 4.3: Trigger input signal sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 4.4: Signal sequence for cascading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 4.5: Cascading application example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 4.6: Principle of object detection - areas with laser occlusion are shown in orange. . 26
Figure 4.7: Zero check of cases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 4.8: Single or multiple track presence control on transport systems. . . . . . . . . . . . . . 28
Figure 4.9: "Area Scan" teach (Area Scan Basic) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 4.10: "Area Scan" teach (Area Scan Basic) - object detection in AW01 . . . . . . . . . . . . 31
Figure 4.11: "Background Suppression" teach (Area Scan Advanced) . . . . . . . . . . . . . . . . . . 33
Figure 4.12: "Background Suppression" teach (Area Scan Advanced) - object detection
in the AWs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 4.13: "Multiple Track Completeness Monitoring" teach (Track Scan) . . . . . . . . . . . . . . 36
Figure 5.1: Device name plate LRS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 5.2: Fastening options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 5.3: Mounting example LRS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 5.4: BT 56 mounting device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 5.5: BT 59 mounting device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 5.6: Alignment to the measuring plane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 6.1: Location of the electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 6.2: Connections of the LRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Table 6.1: Interface version of X3 and X4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Table 6.2: Cable lengths and shielding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 6.3: Connecting the ground potential to the light section sensor . . . . . . . . . . . . . . . . 47
Figure 6.4: Connecting the cable shielding in the switch cabinet. . . . . . . . . . . . . . . . . . . . . . 48
Figure 6.5: Connecting the cable shielding to the PLC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Table 6.3: Pin assignment X1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 6.6: Internal wiring at X1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Table 6.4: Pin assignment X2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 6.7: HOST / BUS IN cable assignments on RJ-45. . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Table 6.5: Pin assignment X3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Table 6.6: Pin assignment X3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Figure 7.1: Indicator and operating elements of the LRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Table 7.1: LED function indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Table 7.2: Menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Table 8.1: Address allocation in the Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure 9.1: Initial screen LRSsoft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Figure 9.2: PROFIBUS settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Figure 9.3: Parameter settings in LRSsoft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Figure 9.4: Window "Analysis Window Definitions" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
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Leuze electronic LRS 36 7
Figures and tables
Figure 9.5: Definition of analysis windows (AW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Figure 9.6: "Analysis Window Combination Tables" window . . . . . . . . . . . . . . . . . . . . . . . . . 81
Table 9.1: Parameter settings for control of the switching outputs . . . . . . . . . . . . . . . . . . . . 82
Figure 9.7: Definition of logic combinations of several AWs . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Figure 9.8: LRSsoft Visualization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Figure 9.9: Zoom function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Table 10.1: Connection commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Table 10.2: Command mode control commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Table 10.3: Sensor control commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Table 10.4: Commands in detection mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Figure 11.1: PROFIBUS address assignment with LRSsoft . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Table 11.1: PROFIBUS - Overview of output data (from viewing position of control). . . . . . 114
Table 11.2: PROFIBUS - Overview of input data (from viewing position of control) . . . . . . . 115
Table 11.3: Input data byte uSensorInfo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Table 11.4: Input data byte uSensorState . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Table 11.5: input data byte wResultAWs (high and low byte) . . . . . . . . . . . . . . . . . . . . . . . 118
Table 12.1: General causes of errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Table 12.2: Interface error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Table 12.3: Error messages in display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Figure 14.1: Typical detection range LRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Figure 14.2: LRS dimensioned drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Table 15.1: LPS type overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Table 15.2: LRS type overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Table 15.3: LES type overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Table 15.4: Mounting devices for the LRS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Table 15.5: Cable assignment KD S-M12-8A-P1-… . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Table 15.6: X1 cables for the LRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Table 15.7: Cable assignment KS ET-M12-4A-P7-… . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Table 15.8: Ethernet connection cables featuring M12 plug/open cable end . . . . . . . . . . . . 133
Table 15.9: Cable assignment KSS ET-M12-4A-RJ45-A-P7-… . . . . . . . . . . . . . . . . . . . . . . 133
Table 15.10: Ethernet connection cables M12 connector/RJ-45 . . . . . . . . . . . . . . . . . . . . . . 133
Table 15.11: Cable assignment KSS ET-M12-4A-M12-4A-P7-… . . . . . . . . . . . . . . . . . . . . . . 134
Table 15.12: Ethernet connection cables featuring M12 plug/M12 plug. . . . . . . . . . . . . . . . . 134
Table 15.13: Connectors for the LRS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Table 15.14: Cable assignment KS S-M12-8A-P1-… . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Table 15.15: X3 cables for the LRS 36/6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Table 15.16: Pin assignment X4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Figure 15.1: Cable structure for PROFIBUS connection cables . . . . . . . . . . . . . . . . . . . . . . . 136
Table 15.17: PROFIBUS connection accessories for the LRS 36/PB . . . . . . . . . . . . . . . . . . . 136
Table 15.18: PROFIBUS cables for LRS 36/PB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Table 15.19: Configuration memory for LxS 36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Table 16.1: Revision History - Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Table 16.2: Revision History - Configuration software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
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Leuze electronic LRS 36 8
1 General information
U
L
US
C
LISTED
1.1 Explanation of symbols
The symbols used in this technical description are explained below.
Attention!
This symbol precedes text messages which must strictly be observed. Failure to observe
the provided instructions could lead to personal injury or damage to equipment.
Attention Laser!
This symbol warns of possible danger through hazardous laser radiation.
The light section sensors of the LRS series use a class 2M laser: Viewing the laser output
with certain optical instruments, e.g. magnifying glasses, microscopes or binoculars, may
result in eye damage.
Note!
This symbol indicates text passages containing important information.
General information
1.2 Declaration of Conformity
The laser light section sensors of the 36 and 36HI series have been developed and manufactured in accordance with the applicable European standards and directives. They comply
with the safety standards UL508 and CSA C22.2 No. 14 (Industrial Control Equipment).
Note!
The CE Declaration of Conformity for these devices can be requested from the manufacturer.
The manufacturer of the product, Leuze electronic GmbH & Co. KG in D-73277 Owen,
possesses a certified quality assurance system in accordance with ISO 9001.
Leuze electronic LRS 36 9
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2 Safety
This sensor was developed, manufactured and tested in line with the applicable safety standards. It corresponds to the state of the art.
2.1 Intended use
The Light section sensors of the LRS series are laser sensors for presence detection of
objects in defined areas.
Areas of application
The LRS series Light section sensors are especially designed for the following areas of
application:
• Zero check of cases
• Single or multiple track presence control on transport systems
• Check whether object or lid are present
CAUTION
Observe intended use!
The protection of personnel and the device cannot be guaranteed if the device is operated
in a manner not complying with its intended use.
Only operate the device in accordance with its intended use.
Leuze electronic GmbH + Co. KG is not liable for damages caused by improper use.
Read these operating instructions before commissioning the device. Knowledge of
this document is required in order to use the equipment for its intended purpose.
Safety
NOTE
Comply with conditions and regulations!
Observe the locally applicable legal regulations and the rules of the employer's liability
insurance association.
OPERATION NOTICE IN ACCORDANCE WITH UL CERTIFICATION:
CAUTION – Use of controls or adjustments or performance of procedures other than
specified herein may result in hazardous light exposure.
CAUTION
UL applications!
For UL applications, use is only permitted in Class 2 circuits in accordance with the NEC
(National Electric Code).
Leuze electronic LRS 36 10
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2.2 Foreseeable misuse
Any use other than that defined under "Intended use" or which goes beyond that use is
considered improper use.
In particular, use of the device is not permitted in the following cases:
• in rooms with explosive atmospheres
• as stand-alone safety component in accordance with the machinery directive
• for medical purposes
NOTE
Do not modify or otherwise interfere with the device!
Do not carry out modifications or otherwise interfere with the device.
The device must not be tampered with and must not be changed in any way.
The device must not be opened. There are no user-serviceable parts inside.
Repairs must only be performed by Leuze electronic GmbH + Co. KG.
2.3 Competent persons
Connection, mounting, commissioning and adjustment of the device must only be carried
out by competent persons.
Prerequisites for competent persons:
• They have a suitable technical education.
• They are familiar with the rules and regulations for occupational safety and safety at
work.
• They are familiar with the technical description of the device.
• They have been instructed by the responsible person on the mounting and operation
of the device.
Safety
1.)
1.) Use as safety-related component within the safety function is possible, if the component combination is designed correspondingly by the machine manufacturer.
Leuze electronic LRS 36 11
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Certified electricians
Electrical work must be carried out by a certified electrician.
Due to their technical training, knowledge and experience as well as their familiarity with
relevant standards and regulations, certified electricians are able to perform work on electrical systems and independently detect possible dangers.
In Germany, certified electricians must fulfill the requirements of accident-prevention regulations BGV A3 (e.g. electrician foreman). In other countries, there are respective regulations that must be observed.
2.4 Exemption of liability
Leuze electronic GmbH + Co. KG is not liable in the following cases:
• The device is not being used properly.
• Reasonably foreseeable misuse is not taken into account.
• Mounting and electrical connection are not properly performed.
• Changes (e.g., constructional) are made to the device.
2.5 Laser safety notices
ATTENTION, LASER RADIATION – LASER CLASS 2M
Never look directly into the beam or point the beam in the direction of telescope
users!
The device fulfills the IEC 60825-1:2007 (EN 60825-1:2007) safety regulations for a
product in laser class 2M as well as the U.S. 21 CFR 1040.10 regulations with deviations
corresponding to "Laser Notice No. 50" from June 24th, 2007.
Never look directly into the laser beam or in the direction of reflected laser beams!
If you look into the beam path over a longer time period, there is a risk of injury to the
retina.
Do not point the laser beam of the device at persons!
Interrupt the laser beam using a non-transparent, non-reflective object if the laser
beam is accidentally directed towards a person.
When mounting and aligning the device, avoid reflections of the laser beam off reflec-
tive surfaces!
CAUTION! The use of operating or adjusting devices other than those specified here
or carrying out of differing procedures may lead to dangerous exposure to radiation.
The use of optical instruments or devices (e.g., magnifying glasses, binoculars) with
the product will increase eye danger.
Observe the applicable statutory and local laser protection regulations.
The device must not be tampered with and must not be changed in any way.
There are no user-serviceable parts inside the device.
Repairs must only be performed by Leuze electronic GmbH + Co. KG.
Safety
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Leuze electronic LRS 36 12
Safety
A Laser aperture
B Laser warning sign
C Laser information sign with laser parameters
B
C
A
NOTE
Affix laser information and warning signs!
Laser warning and laser information signs are affixed to the device (see Figure 2.1):
In addition, self-adhesive laser warning and information signs (stick-on labels) are supplied
in several languages (see Figure 2.2).
Affix the laser information sheet to the device in the language appropriate for the place
of use.
When using the device in the U.S.A., use the stick-on label with the "Complies with
21 CFR 1040.10" notice.
Affix the laser information and warning signs near the device if no signs are attached
to the device (e.g., because the device is too small) or if the attached laser information
and warning signs are concealed due to the installation position.
Affix the laser information and warning signs so that they are legible without exposing
the reader to the laser radiation of the device or other optical radiation.
Figure 2.1: Laser apertures, laser warning signs
Leuze electronic LRS 36 13
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AVOID EXPOSURE – LASER RADIATION
IS EMITTED FROM THIS APERTURE
EXPOSITION DANGEREUSE – UN RAYONNEMENT
LASER EST ÉMIS PAR CETTE OUVERTURE
LASERSTRAHLUNG
NICHT IN DEN STRAHL BLICKEN
ODER DIREKT MIT OPTISCHEN
INSTRUMENTEN BETRACHTEN
LASER KLASSE 2M
DIN EN 60825-1:2008-05
Max. Leistung (peak):
Impulsdauer:
Wellenlänge:
LASER RADIATION
DO NOT STARE INTO BEAM
OR VIEW DIRECTLY WITH
OPTICAL INSTRUMENTS
CLASS 2M LASER PRODUCT
EN 60825-1:2007
Maximum Output (peak):
Pulse duration:
Wavelenght:
RADIAZIONE LASER
NON FISSARE IL FASCIO AD OCCHIO
NUDO NÉ GUARDARE DIRETTAMENTE
CON STRUMENTI OTTICI
APARRECCHIO LASER DI CLASSE 2M
EN 60825-1:2007
Potenza max. (peak):
Durata dell'impulso:
Lunghezza d'onda:
RAYONNEMENT LASER
NE PAS REGARDER DANS LE FAISCEAU
NI À L`ŒIL NU NI Á L`AIDE D`UN
INSTRUMENT D`OPTIQUE
APPAREIL À LASER DE CLASSE 2M
EN 60825-1:2007
Puissance max. (crête):
Durée d`impulsion:
Longueur d`onde:
RADIACIÓN LÁSER
NO MIRAR FIJAMENTE AL HAZ
NI MIRAR DIRECTAMENTE CON
INSTRUMENTOS ÓPTICOS
PRODUCTO LÁSER DE CLASE 2M
EN 60825-1:2007
Potencia máx. (peak):
Duración del impulso:
Longitud de onda:
RADIAÇÃO LASER
NÃO OLHAR FIXAMENTE O FEIXE
NEM OLHAR DIRECTAMENTE
COM INSTRUMENTOS ÓPTICOS
EQUIPAMENTO LASER CLASSE 2M
EN 60825-1:2007
Potência máx. (peak):
Período de pulso:
Comprimento de onda:
LASER RADIATION
DO NOT STARE INTO BEAM
OR VIEW DIRECTLY WITH
OPTICAL INSTRUMENTS
CLASS 2M LASER PRODUCT
IEC 60825-1:2007
Complies with 21 CFR 1040.10
Maximum Output (peak):
Pulse duration:
Wavelength:
0伊䉏⏘ℶ❐
GB7247.1-2012
㦏⮶戢⒉᧤⽿⋋᧥
厘⑁㖐兼㢅梃
㽱栎
䉏⏘戟⺓
▎䦃展㒥抩扖⏘ⷵ
ⅹ⣷䦃㘴屑䦚⏘㧮
8,7 mW
3 ms
658 nm
8.7 mW
3 ms
658 nm
8,7 mW
3 ms
658 nm
8,7 mW
3 ms
658 nm
8,7 mW
3 ms
658 nm
8,7 mW
3 ms
658 nm
8.7 mW
3 ms
658 nm
8.7 mW
3 ms
658 nm
50111877-02
Safety
Figure 2.2: Laser warning and information signs – supplied stick-on labels
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Leuze electronic LRS 36 14
3 Operating principle
CMOS area
detector
Receiving optics
Laser with expansion optics
The zero point of the coordinate system is the intersection
of optical axis and front edge of
the housing.
3.1 Generation of 2D profiles
Light section sensors work according to the triangulation principle. Using transmission
optics a laser beam is expanded to a line and aimed at an object. The light remitted by the
object is received by a camera, which consists of receiver optics and the CMOS area
detector.
Operating principle
-X
+X
-Y
Z
Figure 3.1: Light section sensor design
Depending on the distance of the object the laser line is projected to a different position on
the CMOS planar detector as shown in Figure 3.1. By means of this position the distance
of the object can be calculated.
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3.2 Limits of light section sensors
Laser occlusionReceiver occlusion
In the red areas the laser does not
strike the object. Thus it is not possible to determine any data here.
The receiver does not "see" any object contours in the
red area because they are obscured by the upper right
edge of the object.
When the object is shifted to the left the object contour will still be detected by the laser but the laser line
does not lie within the receiver's field of view at that
point, and therefore no measurement values can be
detected.
3.2.1 Occlusion
The detection of high and wide objects from just one point poses the particular problem
that depending on the object contour, parts of the object may be obscured by others. This
effect is called occlusion.
The Figure 3.2 illustrates the problem:
Operating principle
Leuze electronic LRS 36 16
Figure 3.2: Occlusion
-Y
+X
TNT 35/7-24V
Z
-X
Operating principle
Y
Possible measure against laser occlusion
• Using multiple Light section sensors with rotated
viewing direction. In the application example on
the right you can clearly see that the fields of vision
of the three sensors complement each other and
merge. The first of the sensors is operated as a
master, the two others are cascaded (see "Cascading" on page 23). This reliably prevents mutual
interference of the sensors.
Possible measures against receiver occlusion
• Alignment of the objects so that all profile data to be detected are visible to the receiver.
Or:
• Installing a second sensor featuring a viewing
direction rotated by 180° about the z-axis so that
the objects can be viewed from 2 sides.
In the example to the right, the left sensor detects
the profile data on the left side of the product, and
the right sensor the profile data on the right side.
In this situation the second sensor is then cascaded. See "Cascading" on page 23.
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3.2.2 Minimum object size
Object distance in Z direction [mm]
Typical minimum
object size [mm]
The length of the laser line in X direction is variable and depends on the distance in Z direction. However, always the same number of measurement points is measured. The measurement points on the object in the detection field are crucial for detecting the object.
This implies that the minimum object size (i.e., the smallest detectable object) in the X direction increases with the distance in the direction of Z.
Small objects can be recognized better in the short range.
Due to the triangulation measurement principle the reflected laser beam strikes the CMOS
receiver in varying angles depending on the object distance. As a consequence, the
minimum object size in Z-direction also increases with distance.
The Figure 3.2 shows this relation:
Figure 3.3: Typical minimum object size LRS 36…
7
6
X
Z
5
4
3
2
1
0
200 300 400 500 600 700 800
Operating principle
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4 Device description
Laser transmitter
Receiver
(CMOS camera)
Display with membrane
keyboard
Electrical connection and
grounding terminal
Groove for dovetail mounting and fastening holes
Note:
The following shows a light section sensor as an example.
An overview of the available types may be found in Chapter 15.1
4.1 Overview of light section sensors
4.1.1 Mechanical design
Figure 4.1: Mechanical design of Leuze light section sensors
Device description
4.1.2 General performance characteristics
• Light section sensor for object detection
• Measurement time/response time: 10ms
• Measurement range/detection area: 200 … 800mm
• Length of laser line: max. 600 mm
• Configuration and transmission of process data via Fast Ethernet
• OLED display with membrane keyboard
• Measurement value display in mm on OLED display as an alignment aid
• Up to 16 inspection tasks
• Compact construction
• Robust design and easy operation
• Activation input, trigger input, cascading output
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4.1.3 Line Range Sensor - LRS
Single- or multi-track presence control on
conveying equipment
Fill level monitoring
Line Range Sensors are designed to perform
proximity object detection along the laser line.
Similar to a light barrier or a laser scanner, the
sensor detects the presence of objects through
scanning. With individual configuration, one
sensor can be used to detect single or multiple
objects.
Specific performance characteristics
• Configuration software LRSsoft
• Data calculation and processing directly
inside the sensor
• Integrated PROFIBUS interface or
4 switching outputs
• Up to 16 detection fields with logical linking option
• Detailed informatio n on analysis windows,
switching state and sensor status via
Ethernet and PROFIBUS
Typical areas of application
• Situation and position control
• Presence control of objects in defined
areas
• Height and width monitoring
• Single or multiple track presence control
on transport systems
• Zero check of cases
Device description
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4.2 Operating the sensor
p
t
Laser off
Laser off
Exposing and measuring
Processing and transmitting
Laser
Activation input
Pin 2 at X1
Output
10ms between 2 consecutive
laser pulses in "Free Running"
mode
Axes: p = level, t = time
Approx. 14ms between
laser pulse and
associated data output
4.2.1 Connection to PC / process control
Configuration
For commissioning the Light section sensors are connected to a PC via the Ethernet interface (see "Connection X2 - Ethernet" on page 50) and are then set using the configuration
software supplied LRSsoft.
Detection mode
In detection mode, the LRS 36/6 is connected to the process control via its 4 switching
outputs; the LRS 36/PB is connected to the process control via PROFIBUS. Alternatively,
the LRS can be operated via the Ethernet interface on X2, see chapter 10 "Integrating the
LRS in the process control (Ethernet)". Additional sensor information is then available.
4.2.2 Activation - laser on/off
Via activation input InAct (pin 2 on X1), via PROFIBUS (master output 'uActivation' = 1) or
the 'Ethernet Trigger' command, the laser and data transmission can be specifically
switched on and off. Thus possible glares due to laser radiation can be prevented during
time periods when no measurements are performed.
Note!
The sensor is delivered ex works with the Activation Input Disregard setting. The
possible activation sources (activation input, PROFIBUS activation and Ethernet activation)
are ignored - the measurement function of the sensor is enabled.
The activation function can be switched on via the configuration software. To do this, the
Activation Input parameter must be set to Regard. The sensor then only measures if
one of the activation sources is activated. If the sensor is waiting for activation, it displays
!Act
in the display.
Device description
Leuze electronic LRS 36 21
Figure 4.2: Activation input signal sequence
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The Figure 4.2 shows the effect of the activation on laser and measurement value output in
A second trigger
pulse before 10ms
have elapsed has
no effect
Trigger time (rising edge)
Laser
Activation input
Pin 2 at X1
Output
(Ethernet)
Data packets, approx. 1ms
t
fix
Approx. 14ms
Trigger input
Pin 5 at X1
Axes: p = level, t = time
"Free Running" mode.
4.2.3 Triggering - Free Running
The Light section sensors can measure in two modes:
• In "Free Running" operation the Light section sensor determines measurement results
with a frequency of 100Hz and outputs these continuously via the interface X2.
• Alternatively, single measurements can also be carried out. For this purpose, the Light
section sensor requires a trigger signal at the trigger input (pin 5 on X1), a PROFIBUS
trigger or the Ethernet Trigger command in detection mode (see
Chapter 10.3.4"Commands in detection mode" on page 107).
When triggering via pin 5 at X1, note:
- Triggering occurs on the rising edge.
-The trigger pulse must be at least 100μs long.
- Before the next trigger, the trigger cable must be on low-level for at least 1 ms.
- Activation must occur at least 100μs before the trigger edge.
- The shortest possible time interval between two successive trigger edges is 10ms.
Note!
Ex works, the LRS is set to Free Running (shown on display:
respond to signals on the trigger input, the operating mode must be set via the LRSsoft configuration software to Input Triggered (shown on display:
Device description
fRun
). In order for it to
Trig
).
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p
Figure 4.3: Trigger input signal sequence
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t
PROFIBUS trigger
Laser
Measurement value output
Trigger input, pin 5 at X1
/ not required
Cascading output,
pin 6 at X1
Sensor 1 / Master
Laser
Measurement value output
Trigger input, pin 5 at X1
Cascading output,
pin 6 at X1
Sensor 2 / 1st slave
Laser
Measurement value output
Trigger input, pin 5 at X1
Cascading output,
pin 6 at X1
Sensor 3 / 2nd slave
Figure 4.4: Signal sequence for cascading
So that a measurement can be triggered on each PROFIBUS cycle, the PROFIBUS trigger
of the LRS responds to a change of master output byte uTrigger. The control only needs
to increment the trigger value in order to initiate a new measurement.
The maximum trigger frequency is 100Hz. If triggering occurs during a measurement, the
trigger signal is ignored, as is the case in the Free Running operating mode.
4.2.4 Cascading
Figure 4.5: Cascading application example
If several Light section sensors are operated, there is the risk of mutual interference
if the reflected laser beam of one sensor can
be received by the receiver of another
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sensor at the time of reading.
This can easily be seen in Figure 4.5. Here
three Light section sensors are used to
determine the log thickness reliably from all
sides.
To prevent mutual interference the Light
section sensors can be operated cascaded: the exposure by the second sensor will be initiated following completion of the exposure by the first sensor. To achieve this, the cascading
output of the first sensor must be connected to the trigger input of the second sensor. Up
to 6 sensors can thus be operated cascaded.
Trigger settings
Se nso r 1, or the m ast er, can be ope rat ed i n th is c ase both tr igg ere d as wel l as con tin uously.
All other sensors must be operated triggered.
Cascading settings
For all sensors except the last slave, the cascading output must be enabled via configuration
software: Cascading Output: Enable.
Device description
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Note!
In PROFIBUS operation, cascading only functions as described above via the InTrig and
OutCas inputs/outputs at X1. In this case, the maximum detection rate of 100Hz is achieved.
Make certain, however, that the input data of the PROFIBUS light section sensors are still
transmitted in the same bus cycle; monitor the scan numbers if necessary.
Alternatively, light section sensors with PROFIBUS can be selectively triggered in sequence.
Master output 'uTrigger' of the sensor to be triggered is incremented on each PLC cycle;
the master outputs of the other sensors do not change. The maximum detection rate of
100Hz is not achieved with this process.
If multiple sensors are triggered in a PROFIBUS cycle, mutual interference may occur
between the sensors if they are in the same visual field and the time between updating byte
'uTrigger' is shorter than the maximum exposure time (Exposure Time) of 1.3 ms.
4.3 Detection functions LRS
The LRS lets you carry out presence/absence and area monitoring with stable switching
behavior and simple configuration. The sensor configuration is stored in the individual
inspection tasks in the configuration software LRSsoft to reflect the requirements of different
applications.
4.3.1 Inspection Task
The LRS lets you operate with up to 16 individual inspection tasks, each of which may
contain up to 16 rectangular analysis windows (AWs) that can be configured independently
and that may overlap arbitrarily.
1-16 AWs can be defined for each inspection task. The results of the individual AWs may
be combined via logic operations (AND, OR, NOT). A different logic operation can be defined
for each of the 4 switching outputs Out1 to Out4.
The selection of the inspection tasks is carried out:
• via the switching inputs of connection X3
(inspection tasks 0-7 only)
•via PROFIBUS
• via LRSsoft (on a PC connected via X2)
• via Ethernet (on a process control connected via X2)
• via the control panel of the sensor beginning with firmware V01.40.
Device description
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4.3.2 Analysis Window (AW)
The AWs are defined in the configuration software LRSsoft (see chapter 9.4 "Parameter
settings/Parameters tab"). This software defines the spatial position, size and number of hit
points to be detected for each AW.
An evaluation is carried out only within the active AWs. Areas outside the sensor's field of
vision are also not evaluated. An object is detected if the number of hit points in the AW
reaches or exceeds an arbitrarily defined minimum value.
Leuze electronic LRS 36 24
Device description
Note!
The number of hit points does not necessarily correspond with the object size, since the
number of hit points is dependent on distance z. At near distance to the sensor (e.g.,
300 mm), an object expanded in the X direction has nearly twice as many hit points as it does
at a far distance (e.g, 600mm). If the object distance is the same, the number of hit points
remains nearly constant.
Analysis results
The analysis results of individual AWs can be combined logically via the LRSsoft configuration software. The result of this logic operation is output via the switching states of the
four switching outputs Out1-Out4 at X3 or PROFIBUS.
Detailed evaluation results such as, e.g., the status of all AWs, the number of hit points and
the state of the switching outputs are transmitted via Ethernet and can be queried via
PROFIBUS. For more information please refer to Chapter 10.
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4.3.3 Definition of AWs and analysis results
LRS
Detection range
Objects
Object points
(hit points)
Line length 150mm
Line length
600mm
Result = 1,
if hit points ≥ 5
Result = 0,
if hit points <5
Analysis Window
AW
x axis
z axis
No object detection due to
shadowing in the detection
range
In Figure 4.6, 5 AWs are defined (blue rectangles). For each AW, a minimum of 5 hit points
must be detected for the analysis result to be "1". If fewer hit points are detected, the analysis
result is "0".
Consider the example shown:
• AW1: 8 hit points (on O1) result =1
• AW2: 4 hit points (on O2) result =0
• AW3: 1 hit points (on O2) result =0
• AW4: 3 hit points (on O2) result =0
• AW5: 11 hit points (on O4) result =1
Why is O2 not detected?
O2 is not detected in AW2 because missing hit points are shadowed. For AW3, O2 is too
far to the left. For AW4, the number of hit points to be detected would need to be lowered
to 3.
Why is O3 not detected?
O3 is within AW3, but AW3 does not detect the object's upper edge and thus there is no
detection. O3 is not detected within AW5 because, from the sensor's point of view, O4 is
in front of it.
Device description
AW4
AW1 AW2 AW3
AW5
O4
O1 O2 O3
+X
Z
-X
Figure 4.6: Principle of object detection - areas with laser occlusion are shown in orange
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4.3.4 Application examples
Zero check of cases
In Figure 4.7 AW1 and AW2 are used to check whether a container of a certain height and
width is located at a predefined position in the detection range.
AW3 is used to check whether the container is empty. It is not empty if hit points are detected
in AW3.
Device description
AW1 AW2
AW3
+X
Z
-X
Figure 4.7: Zero check of cases
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Device description
Single or multiple track presence control on transport systems
In Figure 4.8, as in Figure 4.7, AW1 and AW2 are used to check whether a container of a
certain height and width is located at a predefined position in the detection range.
AW3 to AW8 are used to check whether and where objects are located in the container and
what their height is.
AW1 AW2
AW3 AW4 AW5
AW6 AW7 AW8
+X
Z
-X
Figure 4.8: Single or multiple track presence control on transport systems
4.3.5 Creation of inspection tasks
The settings necessary for the configuration of the AWs, the assignment of the AW states
to the switching outputs and the configuration of general parameters such as operating
mode, activation, cascading, detection range (FoV), etc. are carried out in LRSsoft, see
chapter 9.4 "Parameter settings/Parameters tab" and Chapter 9.7.
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