User's Guide
VisiLine cameras (USB3 Vision™)
Document Version: v1.0
Release: 24.09.2014
Document Number: 11135443
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Table of Contents
1. General Information ................................................................................................. 6
2. General safety instructions ..................................................................................... 7
3. Intended Use ............................................................................................................. 7
4. General Description ................................................................................................. 8
5. Camera Models ......................................................................................................... 9
6. Installation .............................................................................................................. 10
6.1 Lens mounting ...................................................................................................... 10
6.2 Environmental Requirements ................................................................................ 10
6.2.1 Heat Transmission ...........................................................................................11
7. Pin Assignment ...................................................................................................... 12
7.1 USB 3.0 Interface .................................................................................................. 12
7.2 Digital IOs ............................................................................................................. 12
7.2.1 LED Signalling ................................................................................................ 13
8. ProductSpecications .......................................................................................... 14
8.1 Spectral Sensitivity for Baumer VLU Cameras ..................................................... 14
8.2 Field of View Position ............................................................................................ 15
8.3 Acquisition Modes and Timings ............................................................................. 16
8.3.1 Free Running Mode ........................................................................................ 16
8.3.2 Fixed-Frame-Rate Mode ................................................................................ 17
8.3.3 Trigger Mode .................................................................................................. 18
8.3.4 Advanced Timings for USB 3.0 Vision
TM
Message Channel ........................... 22
8.4 Software ................................................................................................................ 24
8.4.1 Baumer GAPI ................................................................................................. 24
8.4.2 3
rd
Party Software ........................................................................................... 24
9. Camera Functionalities .......................................................................................... 25
9.1 Image Acquisition .................................................................................................. 25
9.1.1 Image Format ................................................................................................. 25
9.1.2 Pixel Format ................................................................................................... 26
9.1.3 Exposure Time................................................................................................ 28
9.1.4 PRNU / DSNU Correction (FPN - Fixed Pattern Noise) ................................. 29
9.1.5 HDR (High Dynamic Range) .......................................................................... 30
9.1.6 Look-Up-Table ................................................................................................ 31
9.1.7 Gamma Correction ......................................................................................... 31
9.1.8 Region of Interest (ROI) ................................................................................. 32
9.1.9 Binning............................................................................................................ 33
9.1.10 Brightness Correction (Binning Correction) .................................................. 34
9.1.11 Flip Image ..................................................................................................... 35
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9.2 Color Processing ................................................................................................... 36
9.3 Color Adjustment – White Balance ....................................................................... 36
9.3.1 User-specic Color Adjustment ...................................................................... 36
9.3.2 One Push White Balance ............................................................................... 37
9.4 Analog Controls ..................................................................................................... 37
9.4.1 Offset / Black Level ......................................................................................... 37
9.4.2 Gain ................................................................................................................ 38
9.5 Pixel Correction ..................................................................................................... 39
9.5.1 General information ........................................................................................ 39
9.5.2 Correction Algorithm ....................................................................................... 40
9.5.3 Defectpixellist ................................................................................................. 40
9.6 Process Interface .................................................................................................. 41
9.6.1 Digital IOs ....................................................................................................... 41
9.6.2 IO Circuits ....................................................................................................... 42
9.6.3 Trigger ............................................................................................................ 43
9.6.4 Trigger Source ................................................................................................ 43
9.6.5 Debouncer ...................................................................................................... 44
9.6.6 Flash Signal .................................................................................................... 44
9.6.7 Timers ............................................................................................................. 45
9.6.8 Frame counter ................................................................................................ 45
9.7 Sequencer ............................................................................................................. 46
9.7.1 General Information ........................................................................................ 46
9.7.2 Baumer Optronic Sequencer in Camera xml-le ............................................ 47
9.7.3 Examples ........................................................................................................ 47
9.7.4 Capability Characteristics of Baumer GAPI Sequencer Module .................... 48
9.7.5 Double Shutter ............................................................................................... 49
9.8 Device Reset ......................................................................................................... 49
9.9 User Sets .............................................................................................................. 50
9.10 Factory Settings .................................................................................................. 51
9.11 Timestamp ........................................................................................................... 51
10. Interface Functionalities ........................................................................................ 52
10.1 Device Information .............................................................................................. 52
10.2 Baumer Image Info Header (Chunk) ................................................................... 53
10.3 Message Channel ............................................................................................... 54
10.3.1 Event Generation ......................................................................................... 54
11. Start-Stop Behaviour ............................................................................................. 55
11.1 Start / Stop / Abort Acquisition (Camera)............................................................. 55
11.2 Start / Stop Interface ........................................................................................... 55
11.3 Acquisition Modes ............................................................................................... 55
11.3.1 Free Running ................................................................................................ 55
11.3.2 Trigger ........................................................................................................... 55
11.3.3 Sequencer .................................................................................................... 55
12. Cleaning .................................................................................................................. 56
13. Transport / Storage ................................................................................................ 56
14. Disposal .................................................................................................................. 56
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15. Warranty Notes ....................................................................................................... 57
16. Support .................................................................................................................... 57
17. Conformity ..................................................................................................................
17.1 CE ...........................................................................................................................
17.2 RoHS ......................................................................................................................
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General Information1.
Thank you for purchasing a camera from the Baumer range. This User's Guide describes
how to connect, set up and use the camera.
Read this manual carefully and observe the notes and safety instructions!
Target group for this User's Guide
This User's Guide is aimed at experienced users who want to integrate camera(s) into a
vision system.
Copyright
Any duplication or reprinting of this documentation, in whole or in part, and the reproduc-
tion of the illustrations even in modied form is permitted only with the written approval of
Baumer. This document is subject to change without notice.
Classicationofthesafetyinstructions
In the User's Guide, the safety instructions are classied as follows:
Notice
Gives helpful notes on operation or other general recommendations.
Caution
Pi ctogram
Indicates a potentially dangerous situation. If the situation is not avoided,
slight or minor injury could result or the device may be damaged.
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General safety instructions2.
Caution
Heat can damage the camera. Heat must be dissipated adequately to ensure that the temperatures do not exceed the values (see Heat Transmission).
As there are numerous options for installation, Baumer does not specify a
specic method for proper heat dissipation.
Caution
Device heats up during operation.
Skin irritation possible.
Do not touch the camera during operation.
Caution
Observe precautions for handling electrostatically sensitive devices!
Intended Use3.
The camera is used to capture images that can then be transferred over a USB 3.0 interface to a PC.
Notice
Use the camera only for its intended purpose! For any use that is not described in the
technical documentation poses dangers and will void the warranty. The risk has to be
borne solely by the unit´s owner.
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General Description4.
1
2
4
3
No. Description No. Description
1 Lens mount (C-Mount) 4 USB 3.0 port
2 LED
3 Digital IO
All VisiLine cameras with a USB 3.0 interface have the following features:
Very high image quality Low noise and structure-free image information ▪
Flexible image acquisition Industrially compliant process interface with ▪
parameter setting capability (trigger and ash)
Fast image transfer Reliable transmission at 5000 Mbit/sec according ▪
to USB 3.0 (v1.0) standard
Single cable solution for data and power ▪
▪ GenICam™ and USB3 Vision
TM
compliant
Perfect integration Flexible generic programming interface ( ▪ Baumer
GAPI) for all Baumer cameras
Powerful ▪ Software Development Kit (SDK) with
sample codes and help les for easy integration
Baumer Camera Explorer Test Tool for all camera ▪
functions
Camera features according to the SFNC (v2.0) ▪
▪ GenICam™ compliant XML le to show the
camera features
Supplied with installation program including ▪
automatic camera recognition for easy commissioning
Compact design Light weight ▪
Flexible assembly ▪
Reliable operation State-of-the-art camera electronics and precision ▪
mechanics
Low power consumption and minimal heat genera- ▪
tion
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Camera Models5.
Camera Type
Sensor
Size
Resolution
Full
Frames
[max. fps]
CCD Sensor (monochrome / color)
VLU-02M / VLU-02C 1/4" 656 x 490 160
VLU-12M / VLU-12C 1/3" 1288 x 960 42
CMOS Sensor (monochrome / color)
VLU-03M / VLU-03C 1/3" 640 x 480 376
Dimensions
C-Mount
8 - M3 depth 3
2 - M2 depth 3
Pixel 0,0
4 - M3 depth 3
8,7
18
11
3,5
26
14,2
48,3
9,8
33
33
26
12
3,5
6,75
26
26
26
3,5
◄Figure1
Baumer VLU camera
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Installation6.
Caution
Observe precautions for handling electrostatically sensitive devices!
Lens mounting6.1
Notice
Ensure the sensor and lens are not contaminated with dust and airborne particles when
mounting the support or the lens to the device!
The following points are very important:
Install the camera in an environment that is as dust free as possible! ▪
Keep the dust cover (bag) on the camera for as long as possible! ▪
Hold the printer with the sensor downwards if the sensor is uncovered. ▪
Avoid contact with any of the camera's optical surfaces! ▪
Environmental Requirements6.2
Temperature
Storage temperature -10°C ... +70°C ( +14°F ... +158°F)
Operating temperature* see Heat Transmission
* If the ambient temperature exceeds the values listed in the table below, the camera must
be cooled. (see Heat Transmission)
Humidity
Storage and Operating Humidity 10% ... 90%
Non-condensing
Mechanical Tests6.2.1
Environmental Testing
Standard Parameter
Vibration, sinusodial
IEC 60068-2-6 Search for Reso-
nance
10-2000 Hz
Amplitude underneath crossover
frequencies
1.5 mm
Acceleration 1 g
Test duration 15 min
Vibration,
broad band
IEC 600682-64
Frequency range 20-1000 Hz
Acceleration 10 g
Displacement 5.7 mm
Test duration 300 min
Shock IEC 60068-
2-27
Puls time 11 ms / 6
ms
Acceleration 50 g / 100 g
Bump IEC60068-2-
29
Pulse Time 2 ms
Acceleration 80 g
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Heat Transmission6.2.2
Caution
Heat can damage the camera. Heat must be dissipated adequately to ensure that the temperature does not exceed the values in the table below.
As there are numerous possibilities for installation, Baumer do not speciy
a specic method for proper heat dissipation, but suggest the following
principles:
operate the cameras only in mounted condition ▪
mounting in combination with forced convection may provide proper heat ▪
dissipation
Caution
Device heats up during operation.
Skin irritation possible.
Do not touch the camera operation.
T
Measurement Point Maximum Temperature
T max. 50°C (122°F)
◄Figure2
Temperature measuring
point
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7. Pin Assignment
7.1 USB 3.0 Interface
USB 3.0 Micro B
123 45 678 910
1 VBUS 6 MicB_SSTX-
2 D- 7 MicB_SSTX+
3 D+ 8 GND_DRAIN
4 ID 9 MicB_SSRX-
5 GND 10 MicB_SSRX+
7.2 Digital IOs
Digital IOs
(M8 / 8 pins / wire colors of the connecting cable)
8
5
7
3
1
4
2
6
1 OUT 3 white
5 IO Power VCC
grey
2 not connected
brown
6 OUT 1
pink
3 IN 1
green
7 not connected
blue
4 IO GND
yellow
8 OUT 2
red
IO Power VCC
4
6
5
I
OUT
RL *)
I
OUT
I
OUT
RL *)
R
L
*)
1
8
3
In 1
IO Ground
current limiter
cable termination
I
IN
Out 1
Out 2
Out
(Line2)
(Line1)
(Line3)
(Line0)
3
*) resistor must be used, I
Out
= 16 mA
by U
EXT
= 24 VDC recommended,
drawing shown above example
for using high active signal
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7.2.1 LED Signalling
LED
Signal Meaning
LED
green USB 3.0 connection
yellow USB 2.0 connection
(settings possible, no frames)
Notice
Why can frames not be transferred over an USB 2.0 connection?
The camera needs to be supplied with more than 2.5W when transferring frames. With
an USB 2.0 connection maximally 2.5W are available. Therefore switching off of the
frame transfer is necessary. However, settings are still possible.
◄Figure3
LED position on Baumer
VLU camera.
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8. ProductSpecications
8.1 Spectral Sensitivity for Baumer VLU Cameras
The following graphs show the spectral sensitivity characteristics of monochrome and
color matrix sensors for VLU cameras. The curves for the sensors do not take the char-
acteristics of lenses and light sources without lters into account.
Values relate to the respective technical data sheets for the sensors.
400 500 600 700 800 900 1000
0
0 2
0 4
0 6
0 8
1 0
Wave Length [nm]
Relative Response
VLU-02M
400 450 500 550 600 650 700
0
0 2
0 4
0 6
0 8
1 0
Wave Length [nm]
Relative Response
VLU-02C
350 450 550 650 750 850 950 1050
Wave Length [nm]
Quantum Efficiency [%]
VLU-03M
350 450 550 650 750 850 950 1050
Wave Length [nm]
Quantum Efficiency [%]
VLU-03C
400 500 600 700 800 900 1000
0
0 2
0 4
0 6
0 8
1 0
Wave Length [nm]
Relative Response
VLU-12M
400 450 500 550 600 650 700
0
0 2
0 4
0 6
0 8
1 0
Wave Length [nm]
Relative Response
VLU-12C
300 400 500 600 700 800 900
0
0 2
0 4
0 6
0 8
1 0
Wave Length [nm]
Relative Response
Filter glass
Figure4►
Spectral sensitivities for
Baumer cameras with
0.3 MP CCD sensors.
Figure5►
Spectral sensitivities for
Baumer cameras with
0.3 MP CMOS sensors.
Figure6►
Spectral sensitivities for
Baumer cameras with
1.2 MP CCD sensors.
Figure7►
Curve of the UV/IR
blocking lter for color
cameras
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8.2 Field of View Position
The gures and table below show the typical accuracy by assumption of the root mean
square value:
photosensitive
surface of the
sensor
front cover
glass
thickness:
1 ± 0.1 mm
cover glass
of sensor
thickness: D
optical path
c mount (17.526 mm)
± XM
± YM
± YR
± XR
± α
± Z
A
14,6
Camera
Type
± xM
[mm]
± yM
[mm]
± xR
[mm]
± YR
[mm]
± z
typ
[mm]
± α
typ
[°]
A
[mm]
D**
[mm]
VLU-02* 0.09 0.09 0.09 0.09 0.025 0.7 16.1 0.75
VLU-03* 0.07 0.07 0.07 0.07 0.025 1.23 17.54 0.45
VLU-12* 0.06 0.06 0.06 0.06 0.025 0.7 16.6 0.5
typical accuracy by assumption of the root mean square value
* C or M
** Dimension D in this table is from manufacturer datasheet (edition 06/2012)
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8.3 Acquisition Modes and Timings
Image acquisition consists of two separate, successively processed components.
Exposing the pixels on the photosensitive surface of the sensor is only the rst part of the
image acquisition process. Once the rst step is completed, the pixels are read out.
The exposure time (t
exposure
) can be adjusted by the user, however, the time needed for the
readout (t
readout
) is determined by the particular sensor and image format.
Baumer cameras can be operated in three different modes, Free Running Mode, FixedFrame-Rate Mode and Trigger Mode.
The cameras can be operated non-overlapped
1)
or overlapped, depending on the mode
used and the combination of exposure and readout time:
Non-overlapped Operation Overlapped Operation
Here, the time intervals are long enough
to process the exposure and readout successively.
In this operation mode, the exposure of a
frame (n+1) occurs during the readout of
frame (n).
Exposure
Readout
Exposure
Readout
8.3.1 Free Running Mode
In the "Free Running" mode, the camera records images permanently and transfers them
to the PC. To achieve the best results (with regard to the adjusted exposure time t
exposure
and image format), the camera is operated overlapped.
In case of exposure times equal to / less than the readout time (t
exposure
≤ t
readout
), the maximum frame rate is provided for the image format used. For longer exposure times, the
frame rate of the camera is reduced.
Exposure
Readout
Flash
t
exposure(n)
t
flash(n)
t
flashdelay
t
flash(n+1)
t
readout(n+1)
t
readout(n)
t
exposure(n+1)
t
ash
= t
exposure
1)Non-overlapped means sequential.
Image parameters:
Offset
Gain
Mode
Partial Scan
Timings:
A - exposure time
frame (n) effective
B - image parameters
frame (n) effective
C - exposure time
frame (n+1) effective
D - image parameters
frame (n+1) effective
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Fixed-Frame-Rate Mode8.3.2
With this feature, Baumer introduces a clever technique to the VLU camera series that
enables the user to predene a desired frame rate in continuous mode.
For this mode, the cameras are equipped with an internal clock generator that creates
trigger pulses.
Notice
Above a certain frame rate, skipping internal triggers becomes unavoidable. In general,
this depends on the combination of the adjusted frame rate, exposure and readout
times.
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8.3.3 Trigger Mode
Image acquisition begins after a specied external event (trigger) occurs. Depending on
the interval of triggers used, the camera can operate either non-overlapped or overlapped
in this mode.
With regard to timings in the trigger mode, the following basic formulas need to be taken
into consideration:
Case Formula
t
exposure
< t
readout
(1) t
earliestpossibletrigger(n+1)
= t
readout(n)
- t
exposure(n+1)
(2) t
notready(n+1)
= t
exposure(n)
+ t
readout(n)
- t
exposure(n+1)
t
exposure
> t
readout
(3) t
earliestpossibletrigger(n+1)
= t
exposure(n)
(4) t
notready(n+1)
= t
exposure(n)
8.3.3.1 Overlapped Operation: t
exposure(n+2)
= t
exposure(n+1)
During overlapped operation, be mindful of the time interval during which the camera is
unable to process trigger signals (t
notready
) that occur. This interval occurs between two
exposures. When this processing time t
notready
has elapsed, the camera is able to react to
external events again.
Once t
notready
has elapsed, the timing of (E) depends on the readout time of the current
image (t
readout(n)
) and exposure time of the next image (t
exposure(n+1)
). It can be determined by
the formulas mentioned above (no. 1 or 3, dependant on the case).
In case of identical exposure times, t
notready
remains the same from acquisition to acquisi-
tion.
Exposure
Readout
t
exposure(n)
t
readout(n+1)
t
readout(n)
t
exposure(n+1)
t
triggerdelay
t
min
Trigger
Flash
t
flash(n)
t
flashdelay
t
flash(n+1)
TriggerReady
t
notready
Image parameters:
Offset
Gain
Mode
Partial Scan
Timings:
A - exposure time
frame (n) effective
B - image parameters
frame (n) effective
C - exposure time
frame (n+1) effective
D - image parameters
frame (n+1) effective
E - earliest possible trigger
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