Baumer EXG03, EXG03c, EXG50 User Manual

Baumer EXG

User's Guide for Gigabit Ethernet Cameras

Table of Contents

1. Camera Models ......................................................................................................... 5

2. ProductSpecications ............................................................................................ 6

2.1. Sensor Specications �� 6

2.1.1. Quantum Efciency for Baumer EXG Cameras �� 6

2.1.2. Shutters �� 6

2.2. Timings �� 8

2.2.1. Free Running Mode �� 8

2.2.2. Trigger Mode �� 9

2.3. Process- and Data Interface ��11

2.3.1. Pin-Assignment Gigabit Ethernet Interface ��11

2.3.2. Pin-Assignment Power Supply and Digital IOs ��11

2.3.3. LED Signaling ��11

2.4. Environmental Requirements �� 12

2.4.1. Temperature and Humidity Range �� 12

2.4.2. Heat Transmission �� 12

3. Software .................................................................................................................. 13

3.1. Baumer-GAPI �� 13

3�2� 3

Party Software �� 13

4. CameraFunctionalities .......................................................................................... 14

4.1. Image Acquisition �� 14

4.1.1. Image Format �� 14

4.1.2. Pixel Format �� 15

4.1.3. Exposure Time�� 17

4.1.4. High Dynamic Range (HDR) �� 17

4.1.5. Look-Up-Table �� 17

4.1.6. Gamma Correction �� 17

4.1.7. Partial Scan / Area of Interest (AOI) �� 18

4.1.8. Binning�� 19

4.1.9. Brightness Correction (Binning Correction) �� 20

4.2. Color Processing �� 20

4.3. Color Adjustment – White Balance �� 20

4.3.1. User-specic Color Adjustment �� 21

4.3.2. One Push White Balance �� 21

4.4. Analog Controls �� 21

4.4.1. Offset / Black Level �� 21

4.4.2. Gain �� 21

4.5. Pixel Correction �� 22

4.5.1. General information �� 22

4.5.2. Correction Algorithm �� 22

4.5.3. Defectpixellist �� 23

4�6� Process Interface �� 23

4.6.1. IO Circuits �� 23

4.6.2. Trigger Input �� 24

4.6.3. Trigger Source �� 24

4.6.4. Debouncer �� 25

4.6.5. Flash Signal �� 25

4.6.6. Frame Counter �� 25

4.7. User Sets �� 26

4.8. Factory Settings �� 26

4.9. Timestamp �� 26

5. InterfaceFunctionalities ........................................................................................ 27

5.1. Device Information �� 27

5.2. Packet Size and Maximum Transmission Unit (MTU) �� 27

5.3. Inter Packet Gap �� 27

5.3.1. Example 1: Multi Camera Operation – Minimal IPG �� 28

5.3.2. Example 2: Multi Camera Operation – Optimal IPG �� 28

5.4. IP Conguration �� 29

5.4.1. Persistent IP �� 29

5.4.2. DHCP (Dynamic Host Conguration Protocol) �� 29

5�4�3� LLA �� 30

5.4.4. Force IP �� 30

5.5. Packet Resend �� 31

5.5.1. Normal Case�� 31

5.5.2. Fault 1: Lost Packet within Data Stream �� 31

5.5.3. Fault 2: Lost Packet at the End of the Data Stream �� 31

5.5.4. Termination Conditions �� 32

5.6. Message Channel �� 33

5.6.1. Event Generation �� 33

5.7. Action Command / Trigger over Ethernet �� 34

5.7.1. Example: Triggering Multiple Cameras �� 34

6. Start-Stop-Behaviour ............................................................................................. 35

6.1. Start / Stop Acquisition (Camera) �� 35

6.2. Start / Stop Interface �� 35

6.3. Pause / Resume Interface �� 35

6.4. Acquisition Modes �� 35

6.4.1. Free Running �� 35

6.4.2. Trigger �� 35

7. NotesandInstructions .......................................................................................... 36

7.1. Warranty Notes �� 36

7.2. Lens Mounting �� 36

8. Conformity .............................................................................................................. 37

8.1. CE �� 37

8.2. FCC – Class B Device �� 37

Index .............................................................................................................................. 38

Camera Models1.

CameraType

Sensor

Size

Resolution

Full

Frames

[max.fps]

Monochrome

EXG03 1/3" 752 x 480 60

EXG50 1/2.5" 2592 x 1944 14

Color

EXG03c 1/3" 748 x 476 60

Dimensions

C-Mount

Photosensitive surface of the sensor

◄Figure1

Front and rear view of a Baumer EXG camera.

◄Figure2

Dimensions of a Baumer EXG camera.

2. ProductSpecications

SensorSpecications2.1.

2.1.1.

QuantumEfciencyforBaumerEXGCameras

The quantum efciency characteristics of monochrome and color matrix sensors for Baumer EXG 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 manufacturer.

350 450 550 650 750 850 950 10501150

Wave Length [nm]

Quantum Efficiency [%]

EXG03

350 450 550 650 750 850 950 10501150

Wave Length [nm]

Quantum Efficiency [%]

EXG03c

350 450 550 650 750 850 950 10501150

Wave Length [nm]

Quantum Efficiency [%]

EXG50

Shutters2.1.2.

The camera models of the EXG series are equipped with different shutters:

CameraType ShutterType

Monochrome

EXG03 Global

EXG50 Rolling

Color

EXG03c Global

Figure3►

Spectral sensitivities for Baumer EXG cameras with 0.3 MP

CMOS

sensor�

*) MP = Megapixels

Figure4►

Spectral sensitivities for Baumer EXG cameras with 5.0 MP CMOS

sensor�

GlobalShutter2.1.2.1.

Pixel

Active Area (Photodiode)

Storage Area

Microlens

Global shutter means that all pixels of the sensor are reset and afterwards exposed for a specied interval (t

exposure

For each pixel an adjacent storage area exists. Once the exposure time elapsed, the information of a pixel is transferred immediately to its storage area and read out from there.

Due to the fact that photosensitive surface get's "lost" by the implementation of the storage area, the pixels mostly are equipped with microlenses, which focus the light to the pixels active area.

RollingShutter2.1.2.2.

Reset Pointer

Readout Pointer

Pixels of Frame

(n-1)

– will be deleted

Currently exposed pixels (Frame

(n)

)

Read out pixels of current Frame (Frame

(n)

)

Rolling shutter means that – in contrast to the global shutter – not the whole sensor is exposed at once, but single portions successively. It is said the shutter "rolls" over the

sensor�

For Baumer EXG cameras with rolling shutter this means two pointers are "rolling" across the sensor:

First, the reset pointer deletes any information of former exposures stored within the ▪ pixels (Frame

(n-1)

). After that the pixels are empty and restart collecting information

from incoming light – the new exposure (Frame

(n)

) begins.

Once a predened interval – the exposure time t ▪

exposure

– is elapsed, the readout pointer rolls across the sensor and the information of the pixels is read out. For example: On Baumer EXG50, the pass of a pointer lasts approx. 72 msec ▪ (t

Full Frame

Due to technical issues of rolling shutter, a ash control depending on the exposure time does not make sense. Such cameras should be used in a continuously illuminated environment.

◄Figure5

Structure of an imaging sensor with global shutter (interline).

◄Figure6

Operating mode of a rolling shutter.

Timings2.2.

The image acquisition consists of two seperate, 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 used image format.

Baumer cameras can be operated with two modes, the Free Running 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 successively.

In this operation the exposure of a frame (n+1) takes place during the readout of frame (n).

Exposure

Readout

Exposure

Readout

Due to the differing CMOS sensor models installed to the Baumer EXG cameras, the operation modes are subdevided into the respective camera models.

2.2.1. 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 (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.

EXG03/EXG03c2.2.1.1.

Exposure

Readout

Flash

exposure(n)

flash(n)

flashdelay

flash(n+1)

readout(n+1)

readout(n)

exposure(n+1)

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

EXG502.2.1.2.

Sensor Reset

Sensor Readout

Full Frame

exposure(n)

exposure(n+1)

delay

Full Frame

Timing Value

Full Frame

71.66 msec

exposure

4 µsec �� 1 sec

TriggerMode2.2.2.

After a specied external event (trigger) has occurred, image acquisition is started.

EXG03/EXG03c2.2.2.1.

Exposure

Readout

exposure(n)

readout(n+1)

readout(n)

exposure(n+1)

triggerdelay

min

Trigger

Flash

flash(n)

flashdelay

flash(n+1)

TriggerReady

notready

EXG502.2.2.2.

Sensor Reset

Sensor Readout

Full Frame

triggerdelay

min

Trigger

Full Frame

exposure

delay

Imageparameters:

Offset Gain

Mode

Partial Scan

Timings:

A - exposure time frame (n) effective B - image parameters frame (n) effective

2.3. Process-andDataInterface

2.3.1. Pin-AssignmentGigabitEthernetInterface

8P8C mod jack

1 8

1 (gn/wh) MX1+

2 (gn) MX1-

3 (og/wh) MX2+

4 (bu) MX3+

5 (bu/wh) MX3-

6 (og) MX2-

7 (bn/wh) MX4+

8 (bn) MX4-

2.3.2. Pin-AssignmentPowerSupplyandDigitalIOs

M8/3pins M8/4pins

1 (bn) Power V

1 (bn) TrigIN+

3 (bu) GND 2 (wh) TrigIN-

4 (bk) NC 3 (bu) Flash

out

4 (bk) U

ext

2.3.3. LEDSignaling

LED Signal Meaning

green Power on

yellow Readout active

green Link active

green ash Receiving

yellow Transmitting

yellow / red ash Receiving and Transmitting

◄Figure7

LED positions on Baumer EXG cameras.

2.4. EnvironmentalRequirements

2.4.1. TemperatureandHumidityRange

Temperature

Storage temperature -10°C ... +70°C ( +14°F ... +158°F)

Operating temperature* +5°C ... +50°C (+41°F ... +122°F)

Housing temperature

**)***)

max. +50°C (+122°F)

* For environmental temperatures ranging from (value A) to (value B), please pay attention to the max. housing temperature. The values are listed in the table below:

CameraType ValueA Value B

Monochrome

EXG03 +25°C (+77°F) +50°C (+122°F)

EXG50 +25°C (+77°F) +50°C (+122°F)

Color

EXG03c +25°C (+77°F) +50°C (+122°F)

Humidity

Storage and Operating Humidity 10% �� 90%

Non-condensing

2.4.2. HeatTransmission

It is very important to provide adequate dissipation of heat, to ensure that the temperature does not reach or exceed +50°C (+122°F). As there are numerous possibilities for installation, Baumer do not speciy a specic 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 ▪

*) Please refer to the respective data sheet. **) Measured at temperature measurement point (T). ***) Housing temperature is limited by sensor specications.

Figure8►

Temperature measurement points of Baumer EXG cameras

3. Software

3.1. Baumer-GAPI

Baumer-GAPI stands for Baumer “Generic Application Programming Interface”. With this API Baumer provides an interface for optimal integration and control of Baumer Gigabit Ethernet (GigE) and Baumer FireWire™ (IEEE1394) cameras.

This software interface allows changing to other camera models or interfaces. It also allows the simultaneous operation of Baumer cameras with Gigabit Ethernet and FireWire™ interfaces.

This GAPI supports both Windows

(XP and Vista) and Linux® (from Kernel 2.6.x) operating systems in 32 bit, as well as in 64 bit. It provides interfaces to several programming languages, such as C, C++ and the .NET™ Framework on Windows®, as well as Mono

on Linux® operating systems, which offers the use of other languages, such as e.g. C# or

VB.NET.

3.2. 3rdPartySoftware

Strict compliance with the Gen<I>Cam™ standard allows Baumer to offer the use of 3rd Party Software for operation with cameras of the EXG series.

You can nd a current listing of 3

Party Software, which was tested successfully in com-

bination with Baumer cameras, at http://www.baumer.com�

+ 29 hidden pages

Baumer EXG03, EXG03c, EXG50 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual