Baumer VLG-02C User guide

Type
User guide
User´s Guide
VisiLine cameras (Gigabit Ethernet)
Document Version: v2.5
Release: 29.09.2017
Document Number: 11107262
2
3
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 Environmental Requirements ................................................................................ 10
6.2 Heat Transmission .................................................................................................11
6.3 Mechanical Tests ................................................................................................... 12
7. Pin-Assignment ...................................................................................................... 13
7.1 Power Supply and Digital IOs ............................................................................... 13
7.2 Ethernet Interface (PoE) ....................................................................................... 13
7.2.1 LED Signaling ................................................................................................. 13
8. ProductSpecications .......................................................................................... 14
8.1 Spectral Sensitivity ................................................................................................ 14
8.2 Field of View Position ............................................................................................ 16
8.3 Acquisition Modes and Timings ............................................................................. 17
8.3.1 Free Running Mode ........................................................................................ 17
8.3.2 Fixed-Frame-Rate Mode ................................................................................ 18
8.3.3 Trigger Mode .................................................................................................. 19
8.3.4 Advanced Timings for GigE Vision
®
Message Channel .................................. 23
8.4 Software ................................................................................................................ 25
8.4.1 Baumer GAPI ................................................................................................. 25
8.4.2 3
rd
Party Software ........................................................................................... 25
9. Camera Functionalities .......................................................................................... 26
9.1 Image Acquisition .................................................................................................. 26
9.1.1 Image Format ................................................................................................. 26
9.1.2 Pixel Format ................................................................................................... 27
9.1.3 Exposure Time................................................................................................ 29
9.1.4 Fixed Pattern Noise Correction (FPNC) ......................................................... 30
9.1.5 High Dynamic Range (HDR) .......................................................................... 31
9.1.6 Look-Up-Table ................................................................................................ 32
9.1.7 Gamma Correction ......................................................................................... 32
9.1.8 Region of Interest ........................................................................................... 33
9.1.9 Binning............................................................................................................ 34
9.1.10 Brightness Correction (Binning Correction) .................................................. 39
9.1.11 Flip Image ..................................................................................................... 40
4
9.2 Color Processing ................................................................................................... 41
9.3 Color Adjustment – White Balance ....................................................................... 41
9.3.1  User-specic Color Adjustment ...................................................................... 41
9.3.2 One Push White Balance ............................................................................... 42
9.4 Analog Controls ..................................................................................................... 42
9.4.1 Offset / Black Level ......................................................................................... 42
9.4.2 Gain ................................................................................................................ 43
9.5 Pixel Correction ..................................................................................................... 44
9.5.1 General information ........................................................................................ 44
9.5.2 Correction Algorithm ....................................................................................... 45
9.5.3 Defectpixellist ................................................................................................. 45
9.6 Process Interface .................................................................................................. 46
9.6.1 Digital IOs ....................................................................................................... 46
9.6.2 IO Circuits ....................................................................................................... 47
9.6.3 Trigger ............................................................................................................ 48
9.6.4 Trigger Source ................................................................................................ 48
9.6.5 Debouncer ...................................................................................................... 49
9.6.6 Flash Signal .................................................................................................... 49
9.6.7 Timers ............................................................................................................. 50
9.6.8 Frame Counter ............................................................................................... 50
9.7 Sequencer ............................................................................................................. 51
9.7.1 General Information ........................................................................................ 51
9.7.2  Baumer Optronic Sequencer in Camera xml-le ............................................ 52
9.7.3 Examples ........................................................................................................ 53
9.7.4 Capability Characteristics of Baumer GAPI Sequencer Module .................... 53
9.7.5 Double Shutter ............................................................................................... 54
9.8 Device Reset ......................................................................................................... 54
9.9 User Sets .............................................................................................................. 55
9.10 Factory Settings .................................................................................................. 56
9.11 Timestamp ........................................................................................................... 56
10. Interface Functionalities ........................................................................................ 57
10.1 Device Information .............................................................................................. 57
10.2 Baumer Image Info Header ................................................................................. 57
10.3 Packet Size and Maximum Transmission Unit (MTU) ......................................... 58
10.4 Inter Packet Gap (IPG) ....................................................................................... 58
10.4.1 Example 1: Multi Camera Operation – Minimal IPG ..................................... 59
10.4.2 Example 2: Multi Camera Operation – Optimal IPG ..................................... 59
10.5 Transmission Delay ............................................................................................. 60
10.5.1 Time Saving in Multi-Camera Operation ...................................................... 60
10.5.2  Conguration Example ................................................................................. 61
10.6 Multicast .............................................................................................................. 63
10.7  IP Conguration .................................................................................................. 64
10.7.1 Persistent IP ................................................................................................. 64
10.7.2  DHCP (Dynamic Host Conguration Protocol) ............................................. 64
10.7.3 LLA ............................................................................................................... 65
10.7.4 Force IP ........................................................................................................ 65
10.8 Packet Resend .................................................................................................... 66
10.8.1 Normal Case................................................................................................. 66
10.8.2 Fault 1: Lost Packet within Data Stream ...................................................... 66
10.8.3 Fault 2: Lost Packet at the End of the Data Stream ..................................... 66
10.8.4 Termination Conditions ................................................................................. 67
10.9 Message Channel ............................................................................................... 68
10.9.1 Event Generation ......................................................................................... 68
5
10.10 Action Command / Trigger over Ethernet .......................................................... 69
10.10.1 Example: Triggering Multiple Cameras ...................................................... 69
11. Start-Stop-Behaviour ............................................................................................. 70
11.1 Start / Stop / Abort Acquisition (Camera)............................................................. 70
11.2 Start / Stop Interface ........................................................................................... 70
11.3 Acquisition Modes ............................................................................................... 70
11.3.1 Free Running ................................................................................................ 70
11.3.2 Trigger ........................................................................................................... 70
11.3.3 Sequencer .................................................................................................... 70
12. Cleaning .................................................................................................................. 71
13. Transport / Storage ................................................................................................ 71
14. Disposal .................................................................................................................. 71
15. Warranty Notes ....................................................................................................... 72
16. Support .................................................................................................................... 72
17. Conformity .............................................................................................................. 73
17.1 CE ....................................................................................................................... 73
17.2 Korean Conformity .............................................................................................. 73
6
1. General Information
Thanks for purchasing a camera of the Baumer family. 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, which 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 modied form is permitted only with the written approval of 
Baumer. This document is subject to change without notice.
Classicationofthesafetyinstructions
In the User´s Guide, the safety instructions are classied as follows:
Notice
Gives helpful notes on operation or other general recommendations.
Caution
Pictogram
Indicates a possibly dangerous situation. If the situation is not avoided, slight
or minor injury could result or the device may be damaged.
7
2. General safety instructions
Caution
Heat can damage the camera. Provide adequate dissipation of heat, to
ensure that the temperatures does not exceed the value (see Heat Trans-
mission).
As there are numerous possibilities for installation, Baumer does not
specify a specic method for proper heat dissipation. 
Caution
Observe precautions for handling electrostatic sensitive devices!
Caution
Class A
The camera is a class A device (DIN EN 55022:2011). It can cause radio
interference in residential environments. Should this happen, you must take
reasonable measures to eliminate the interference.
3. Intended Use
The camera is used to capture images that can be transferred over a GigE interface to a
PC.
8
4. General Description
1
2
3
4
No. Description No. Description
1 C-Mount lens connection 4 Power supply / Digital-IO
2 Ethernet Port
3 Digital-IO
All Baumer Gigabit Ethernet cameras of the VisiLine
®
family are characterized by:
Best image quality Low noise and structure-free image information
High quality mode with minimum noise
Flexible image acquisition Industrially compliant process interface with
parameter setting capability (trigger and ash)
Fast image transfer Reliable transmission up to 1000 Mbit/sec accord-
ing to IEEE802.3
Cable length up to 100 m
PoE (Power over Ethernet)
Baumer driver for high data volume with low CPU
load
High-speed multi-camera operation
Gen<I>Cam™ and GigE Vision
®
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 simple integration
Baumer viewer for all camera functions
Gen<I>Cam™ compliant XML le to describe the 
camera functions
Supplied with installation program with automatic
camera recognition for simple commissioning
Compact design Light weight
exible assembly
Reliable operation State-of-the-art camera electronics and precision
mechanics
Low power consumption and minimal heat genera-
tion
9
5. Camera Models
Camera Type
Sensor
Size
Resolution
Full
Frames
[max. fps]
CCD Sensor (monochrome / color)
VLG-02M / VLG-02C 1/4" 656 x 490 160
VLG-12M / VLG-12C 1/3" 1288 x 960 42
VLG-20M / VLG-20C 1/1.8" 1624 x 1228 27
CMOS Sensor (monochrome / color)
VLG-03M / VLG-03C 1/3" 640 x 480 376
VLG-22M / VLG-22C 2/3" 2044 x 1084 55
VLG-23M / VLG-23C 1/1.2" 1920 x 1200 53
VLG-24M / VLG-24C 1/1.2" 1920 x 1200 38.5
VLG-40M / VLG-40C 1" 2044 x 2044 29
Dimensions (except VLG-23M / VLG-23C, VLG-24M / VLG-24C)
33
26
26
33
9,38,6
15,68,7 8,7
20
26
ø03
3,5
26
12
48,4 14,29,3
8 x M3 x 3
4 x M3 x 3
Pixel 0,0
C-Mount
temperature
measurement point
4 x M2 x 3
26
3,5
10
Dimensions (VLG-23M / VLG-23C, VLG-24M / VLG-24C only)
33
26
26
33
9,38,6
15,68,7 8,7
20
26
ø03
3,5
26
12
48,4
13,6
9,5
8 x M3 x 5
4 x M3 x 3
Pixel 0,0
C-Mount
temperature
measurement point
4 x M2 x 3
26
3,5
6. Installation
Lens mounting
Notice
Avoid contamination of the sensor and the lens by dust and airborne particles when
mounting the support or the lens to the device!
Therefore 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 camera as long as possible!
Hold the print with the sensor downwards with unprotected sensor.
Avoid contact with any optical surface of the camera!
6.1 Environmental Requirements
Temperature
Storage temperature -10°C ... +70°C ( +14°F ... +158°F)
Operating temperature* see Heat Transmission
* If the environmental temperature exceeds the values listed in the table below, the cam-
era must be cooled. (see Heat Transmission)
Humidity
Storage and Operating Humidity 10% ... 90%
Non-condensing
11
6.2 Heat Transmission
Caution
Heat can damage the camera. Provide adequate dissipation of heat, to
ensure that the temperature does not exceed 50°C (122°F).
As there are numerous possibilities for installation, Baumer does not
specify a specic method for proper heat dissipation. 
T
Measure Point Maximal Temperature
T 50°C (122°F)
Figure2
Temperature measuring
point
12
6.3 Mechanical Tests
Environmen-
tal Testing
Standard Parameter
Vibration, sinu-
sodial
IEC 60068-2-6 Frequency
Range
10-2000 Hz
Amplitude under-
neath crossover
frequencies
1.5 mm
Acceleration 10 g
Test duration /
Axis
150 min
Vibration,
broad band
IEC 60068-
2-64
Frequency range 20-1000 Hz
Acceleration
RMS
10 g
Test duration /
Axis
300 min
Shock IEC 60068-
2-27
Puls time 11 ms
Acceleration 50 g
Bump IEC60068-2-
29
Pulse Time 6 ms
Acceleration 40 g
13
7. Pin-Assignment
7.1 Power Supply and Digital IOs
Power supply / Digital-IO
(SACC-DSI-M 8MS-6CON-L180 SH / SACC-DSI-M8FS-3CON-M10-L180 SH)
wire colors of the connecting cable
1
4
5
6
3
2
3
4
1
1 Power V
CC
brown 1 not used brown
2 IN 1 white 3 OUT 2 blue
3 GND blue 4 OUT 3 black
4 OUT 1 black
Notice
The electrical data are available in the
respective data sheet.
5 U
ext
OUT grey
6 GND I/O pink
7.2 Ethernet Interface (PoE)
Notice
The VisiLine
®
supports PoE (Power over Ethernet) IEEE 802.3af Clause 33, 48V Power
supply.
8P8C Modular Jack (RJ45) with LEDs
1
8
1 green/white MX1+ (negative / positive V
port
)
2 green MX1- (negative / positive V
port
)
3 orange/white MX2+ (positive / negative V
port
)
4 blue MX3+
5 blue/white MX3-
6 orange MX2- (positive / negative V
port
)
7 brown/white MX4+
8 brown MX4-
7.2.1 LED Signaling
1
2
LED Signal Meaning
1
green Link active
green ash Receiving
2 yellow Transmitting
Figure3
LED positions on Baum-
er VisiLine cameras.
14
8. ProductSpecications
8.1 Spectral Sensitivity
The spectral sensitivity characteristics of monochrome and color matrix sensors for Visi-
Line
®
cameras are displayed in the following graphs. The characteristic curves for the
sensors  do  not  take  the  characteristics  of  lenses  and  light  sources  without  lters  into 
consideration.
Values relating to the respective technical data sheets of the sensors.
0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,9
1
300400 500600 700800 900100011001200
Wave Length [nm]
Transmission (1 = 100%)
Cover glass
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
400 500 600 700 800 900 1000
0
0.2
0.4
0.6
0.8
1.0
Wave Length [nm]
Relative Response
VLG-02M
400 450 500 550 600 650 700
0
0.2
0.4
0.6
0.8
1.0
Wave Length [nm]
Relative Response
VLG-02C
350 450 550 650 750 850 950 1050
Wave Length [nm]
Quantum Efficiency [%]
VLG-03M
350 450 550 650 750 850 950 1050
Wave Length [nm]
Quantum Efficiency [%]
VLG-03C
400 500 600 700 800 900 1000
0
0.2
0.4
0.6
0.8
1.0
Wave Length [nm]
Relative Response
VLG-12M
400 450 500 550 600 650 700
0
0.2
0.4
0.6
0.8
1.0
Wave Length [nm]
Relative Response
VLG-12C
Figure5►
Spectral sensitivities for
Baumer cameras with
0.2 MP CCD sensor.
Figure4►
Spectral sensitivities for
Baumer cameras with
0.3 MP CMOS sensor.
Figure6►
Spectral sensitivities for
Baumer cameras with
1,2 MP CCD sensor.
15
400 500 600 700 800 900
1000
0
0.2
0.4
0.6
0.8
1.0
Wave Length [nm]
Relative Response
VLG-20M
400 450 500 550 600 650
700
0
0.2
0.4
0.6
0.8
1.0
Wave Length [nm]
Relative Response
VLG-20C
350 450 550 650 750 850 950
1050
Wave Length [nm]
Quantum Efficiency [%]
VLG-22M / VLG-40M
350 450 550 650 750 850 950 105
0
Wave Length [nm]
Quantum Efficiency [%]
VLG-22C / VLG-40C
400 500 600 700 800 900 1000
0
0.2
0.4
0.6
0.8
1.0
Wave Length [nm]
Relative Response
VLG-23M
400 500 600 700 800 900 1000
0
0.2
0.4
0.6
0.8
1.0
Wave Length [nm]
Relative Response
VLG-23C
400 500 600 700 800 900 1000
0
0.2
0.4
0.6
0.8
1.0
Wave Length [nm]
Relative Response
VLG-24M
400 500 600 700 800 900 1000
0
0.2
0.4
0.6
0.8
1.0
Wave Length [nm]
Relative Response
VLG-24C
Figure7
Spectral sensitivities for
Baumer cameras with
2.0 MP CCD sensor.
Figure8
Spectral sensitivities
for Baumer cameras
with 5.0, 4,0 MP CMOS
sensor.
Figure8
Spectral sensitivities for
Baumer cameras with
2.3 MP CMOS sensor.
Figure8
Spectral sensitivities for
Baumer cameras with
2.3 MP CMOS sensor.
16
8.2 Field of View Position
The typical accuracy by assumption of the root mean square value is displayed in the
gure and the table below:
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*
*13,6 (VLG-23/24)
Camera
Type
± x
M
[mm]
± y
M
[mm]
± x
R
[mm]
± Y
R
[mm]
± z
typ
[mm]
± α
typ
[°]
A
[mm]
D**
[mm]
VLG-02* 0.09 0.09 0.09 0.09 0.025 0.7 16.1 0.75
VLG-03* 0.07 0.07 0.07 0.07 0.025 1.23 17.54 0.45
VLG-12* 0.06 0.06 0.06 0.06 0.025 0.7 16.6 0.5
VLG-20* 0.06 0.06 0.06 0.06 0.025 0.7 16.6 0.5
VLG-22* 0.07 0,07 0.07 0.07 0.025 0,5 16.2 0.55 ± 0.05
VLG-23* 0.06 0.06 0.06 0.06 0.025 0.47 16.2 0.5
VLG-24* 0.06 0.06 0.06 0.06 0.025 0.47 16.2 0.5
VLG-40* 0.07 0,07 0.07 0.07 0.025 0,5 16.2 0.55 ± 0.05
typical accuracy by assumption of the root mean square value
* C or M
** Dimension D in this table is from manufacturer datasheet
Figure9►
Sensor accuracy of the
Baumer VisiLine
17
8.3 Acquisition Modes and Timings
The 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. After completion of the rst step, the pixels are read out.
Thereby the exposure time (t
exposure
) can be adjusted by the user, however, the time need-
ed for the readout (t
readout
) is given by the particular sensor and image format.
Baumer cameras can be operated with three modes, the Free Running Mode, the Fixed-
Frame-Rate Mode and the Trigger Mode.
The cameras can be operated non-overlapped
*)
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 exposure and readout succes-
sively.
In this operation the exposure of a frame
(n+1) takes place during the readout of
frame (n).
e
e
8.3.1 Free Running Mode
In the "Free Running" mode the camera records images permanently and sends them to
the PC. In order to achieve an optimal result (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 maxi-
mum frame rate is provided for the image format used. For longer exposure times the
frame rate of the camera is reduced.
Exposur
e
Readout
Flas
h
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
*) Non-overlapped means the same as 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
18
8.3.2 Fixed-Frame-Rate Mode
With this feature Baumer introduces a clever technique to the VisiLine
®
camera series,
that enables the user to predene a desired frame rate in continous mode.
For the employment of this mode the cameras are equipped with an internal clock genera-
tor that creates trigger pulses.
Notice
From a certain frame rate, skipping internal triggers is unavoidable. In general, this de-
pends on the combination of adjusted frame rate, exposure and readout times.
19
8.3.3 Trigger Mode
After a specied external event (trigger) has occurred, image acquisition is started. De-
pending on the interval of triggers used, the camera operates non-overlapped or over-
lapped 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)
In overlapped operation attention should be paid to the time interval where the camera is
unable to process occuring trigger signals (t
notready
). This interval is situated between two
exposures. When this process time t
notready
has elapsed, the camera is able to react to
external events again.
After t
notready
has elapsed, the timing of (E) depends on the readout time of the current im-
age (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, as is the case).
In case of identical exposure times, t
notready
remains the same from acquisition to acquisi-
tion.
Exposur
e
Readout
t
exposure(n)
t
readout(n+1)
t
readout(n)
t
exposure(n+1)
t
triggerdelay
t
min
Tr
igger
Flas
h
t
flash(n)
t
flashdelay
t
flash(n+1)
Tr
iggerReady
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
20
8.3.3.2 Overlapped Operation: t
exposure(n+2)
> t
exposure(n+1)
If the exposure time (t
exposure
) is increased from the current acquisition to the next acquisi-
tion, the time the camera is unable to process occurring trigger signals (t
notready
) is scaled
down.
This can be simulated with the formulas mentioned above (no. 2 or 4, as is the case).
Exposure
Readout
t
exposure(n)
t
readout(n+1)
t
readout(n)
t
exposure(n+1)
t
exposure(n+2)
t
triggerdelay
t
min
Trigger
Flas
h
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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