Vieworks VN-29MC User Manual

VN Camera Link series

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Revision History

Version

Date

Descriptions

1.0

2011-05-24

Initial release

1.1

2011-07-08

Added the 4 Tap readout mode of VN-8MC and Sequence mode content,
updated all related tables and figures. Fixed Minor errors.

1.2

2011-12-22

Added VN-29MC

1.3

2012-04-04

Added Stage Check
Corrected errors

1.4

2013-06-14

 Added description of M5 set screws for tilt adjustment
 Revised spectral response according to the updated TSI datasheets
 Added Actual Time Applied for Commands
 Removed the Horizontal Flip feature from VN-8MC and VN-29MC

1.5

2013-08-06

Corrected position setting values in the 16 Shot Bayer Color sequence
mode

1.6

2013-08-21

Added DSNU Correction feature to VN-8MC and VN-29MC

1.7

2014-09-19

Applied new CI

1.8

2015-03-16

 Modified the minimum vertical AOI for VN-29MC
 Added missing commands to 9.4 Command List

 soo, goo

1.9

2015-05-08

 Corrected errors on the mechanical dimension
 Deleted VN-8MC

2.0

2016-04-22

 Deleted VN-11MC and VN-16MC
 Revised contents of the Flat Field Correction
 Added typical and maximum power requirements

2.1

2017-03-24

Updated the EMC Directive

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Contents

1 Precautions ------------------------------------------------------------------------------------------------- 6
2 Warranty ------------------------------------------------------------------------------------------------------ 7
3 Compliance & Certifications --------------------------------------------------------------------------- 7

3.1 FCC Declaration -------------------------------------------------------------------------------------------------- 7

3.2 CE: DoC ------------------------------------------------------------------------------------------------------------ 7

3.2.1 KCC Statement -------------------------------------------------------------------------------------------------------- 7

4 Package Components ----------------------------------------------------------------------------------- 8
5 Product Specifications ---------------------------------------------------------------------------------- 9

5.1 Overview ------------------------------------------------------------------------------------------------------------ 9

5.2 Specifications ---------------------------------------------------------------------------------------------------- 10

5.3 Camera Block Diagram --------------------------------------------------------------------------------------- 12

5.4 Spectral Response --------------------------------------------------------------------------------------------- 13

5.4.1 Mono Camera Spectral Response ------------------------------------------------------------------------------- 13

5.4.2 Color Camera Spectral Response ------------------------------------------------------------------------------- 14

5.5 Mechanical Specification ------------------------------------------------------------------------------------- 15

6 Connecting the Camera ------------------------------------------------------------------------------- 16

6.1 Mount Plate ------------------------------------------------------------------------------------------------------ 16

6.2 Precaution to center the image sensor ------------------------------------------------------------------- 17

6.3 Precaution about blurring compared to center ---------------------------------------------------------- 17

6.4 Installing the Configurator ------------------------------------------------------------------------------------ 17

7 Camera Interface ---------------------------------------------------------------------------------------- 18

7.1 General Description -------------------------------------------------------------------------------------------- 18

7.2 Camera Link Connector -------------------------------------------------------------------------------------- 18

7.3 Power Input Receptacle -------------------------------------------------------------------------------------- 20

7.4 Control I/O Receptacle ---------------------------------------------------------------------------------------- 21

7.5 Trigger Input Circuit -------------------------------------------------------------------------------------------- 22

7.6 Strobe Output Circuit ------------------------------------------------------------------------------------------ 22

8 Camera Features ---------------------------------------------------------------------------------------- 23

8.1 Area Of Interest (AOI) ----------------------------------------------------------------------------------------- 23

8.2 Binning ------------------------------------------------------------------------------------------------------------ 26

8.3 Trigger Mode ---------------------------------------------------------------------------------------------------- 27

8.3.1 Free-Run Mode ------------------------------------------------------------------------------------------------------- 28

8.3.2 Standard Mode ------------------------------------------------------------------------------------------------------- 30

8.3.3 Double ------------------------------------------------------------------------------------------------------------------ 31

8.3.4 Fast Mode -------------------------------------------------------------------------------------------------------------- 32

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8.3.5 Overlap Mode --------------------------------------------------------------------------------------------------------- 33

8.4 Channel Mode --------------------------------------------------------------------------------------------------- 34

8.5 Gain and Offset ------------------------------------------------------------------------------------------------- 36

8.6 LUT ---------------------------------------------------------------------------------------------------------------- 37

8.7 Defective Pixel Correction------------------------------------------------------------------------------------ 38

8.7.1 Correction Method --------------------------------------------------------------------------------------------------- 38

8.8 Flat Field Correction ------------------------------------------------------------------------------------------- 39

8.9 Dark Signal Non-uniformity Correction ------------------------------------------------------------------- 41

8.10 Temperature Monitor ------------------------------------------------------------------------------------------ 41

8.11 Status LED ------------------------------------------------------------------------------------------------------- 41

8.12 Pixel Shifting ----------------------------------------------------------------------------------------------------- 42

8.12.1 Pixel Shifting and True Color resolution ------------------------------------------------------------------------ 43

8.12.2 Sequence Mode ------------------------------------------------------------------------------------------------------ 45

8.13 Data Format ----------------------------------------------------------------------------------------------------- 49

8.14 Test Image ------------------------------------------------------------------------------------------------------- 50

8.15 Image Invert (Positive/Negative) --------------------------------------------------------------------------- 52

8.16 Strobe ------------------------------------------------------------------------------------------------------------- 53

8.16.1 Strobe Offset ---------------------------------------------------------------------------------------------------------- 53

8.16.2 Strobe Polarity -------------------------------------------------------------------------------------------------------- 54

8.17 Field Upgrade --------------------------------------------------------------------------------------------------- 54

9 Camera Configuration --------------------------------------------------------------------------------- 55

9.1 Setup command ------------------------------------------------------------------------------------------------ 55

9.2 Actual Time Applied for Commands ----------------------------------------------------------------------- 57

9.3 Parameter Storage Space ----------------------------------------------------------------------------------- 58

9.4 Command List --------------------------------------------------------------------------------------------------- 59

10 Configurator GUI ---------------------------------------------------------------------------------------- 63

10.1 VN Camera Scan ----------------------------------------------------------------------------------------------- 63

10.2 Menu --------------------------------------------------------------------------------------------------------------- 64

10.2.1 File ----------------------------------------------------------------------------------------------------------------------- 64

10.2.2 Start-Up ----------------------------------------------------------------------------------------------------------------- 65

10.2.3 Tool ---------------------------------------------------------------------------------------------------------------------- 66

10.2.4 About -------------------------------------------------------------------------------------------------------------------- 67

10.3 Tab ----------------------------------------------------------------------------------------------------------------- 68

10.3.1 VIEW Tab --------------------------------------------------------------------------------------------------------------- 68

10.3.2 MODE/EXP Tab ------------------------------------------------------------------------------------------------------- 69

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10.3.3 ANALOG Tab ---------------------------------------------------------------------------------------------------------- 70

10.3.4 LUT Tab ----------------------------------------------------------------------------------------------------------------- 71

10.3.5 FFC Tab ---------------------------------------------------------------- ------------------------------------------------ 72

10.3.6 Stage Tab ---------------------------------------------------------------- -------------------------------- -------------- 73

11 Troubleshooting ----------------------------------------------------------------------------------------- 75
Appendix A Defective Pixel Map Download --------------------------------------------------------- 76
Appendix B LUT Download ------------------------------------------------------------------------------- 79

B.1 Gamma Graph Download ------------------------------------------------------------------------------------ 79
B.2 CSV File Download -------------------------------------------------------------------------------------------- 80

Appendix C Field Upgrade -------------------------------------------------------------------------------- 82

C.1 MCU --------------------------------------------------------------------------------------------------------------- 82
C.2 FPGA -------------------------------------------------------------------------------------------------------------- 85

Appendix D Position settings according to sequence modes -------------------------------- 86

VN Camera Link series

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1 Precautions

General

 Do not drop, disassemble, repair or alter the device. Doing so may damage the camera

electronics and cause an electric shock.

 Do not let children touch the device without supervision.
 Stop using the device and contact the nearest dealer or manufacturer for technical

assistance if liquid such as water, drinks or chemicals gets into the device.

 Do not touch the device with wet hands. Doing so may cause an electric shock.
 Make sure that the temperature of the camera does not exceed the temperature range

specified in 5.2 Specifications. Otherwise the device may be damaged by extreme
temperature.

Installation and Maintenance

 Do not install in dusty or dirty areas - or near an air conditioner or heater to reduce the risk

of damage to the device.

 Avoid installing and operating in an extreme environment where vibration, heat, humidity,

dust, strong magnetic fields, explosive/corrosive mists or gases are present.

 Do not apply excessive vibration and shock to the device. This may damage the device.
 Avoid direct exposure to a high intensity light source. This may damage the image sensor.
 Do not install the device under unstable lighting conditions. Severe lighting change will affect

the quality of the image produced by the device.

 Do not use solvents or thinners to clean the surface of the device. This can damage the

surface finish.

Power Supply

 Applying incorrect power can damage the camera. If the voltage applied to the camera is

greater or less than the camera’s nominal voltage, the camera may be damaged or operate
erratically. Please refer to 5.2 Specifications for the camera’s nominal voltage.
※ Vieworks Co., Ltd. does NOT provide power supplies with the devices.

 Make sure the power is turned off before connecting the power cord to the camera.

Otherwise, damage to the camera may result.

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2 Warranty

For information about the warranty, please contact your local dealer or factory representative.

3 Compliance & Certifications

3.1 FCC Declaration

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at own expenses.

3.2 CE: DoC

EMC Directive 2014/30/EU
EN 55032:2012 (Class A), EN 55024:2010
Class A

3.2.1 KCC Statement

Type

Description

Class A
(Broadcasting Communication
Device for Office Use)

This device obtained EMC registration for office use (Class A), and may be
used in places other than home. Sellers and/or users need to take note of
this.

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4 Package Components

Package Components

VN Camera (F-Mount)

Mount Plate (Optional)

M5 Set Screws for Tilt Adjustment (Provided only with F-mount camera)

 You can adjust the tilt using the M5 set screws, however it is not recommended since it is

adjusted as factory default settings.

 If the tilt settings need to be adjusted inevitably, please contact your local dealer or factory

representative for technical support.

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5 Product Specifications

5.1 Overview

The VN Camera Link series is a progressive scan, high-resolution industrial area scan cameras. All functions of
VN cameras can be programmed and updated in the field. The image processing and controls of VN Camera Link
series is based on embedded FPGA with a 32-bit microprocessor. Furthermore, the VN Camera Link series has
improved resolution by using pixel shift technology. A XY Stage is precisely shifted as nanometers unit so that the
image sensor can be moved in X and Y direction (1/2 or 1/3 pixel distance) while taking images.

Main Features

 Area Of Interest
 Trigger Mode
 Binning Mode – 2 × 2 / 4 × 4
 Output Width – 8 / 10 / 12 bit
 Output Channel – 1 Tap / 2 Tap / 4 Tap
 Auto Taps Adjustment
 Electronic Shutter
 2D Flat Field Correction
 Strobe Output
 Analog Gain adjustment function
 Analog Offset adjustment function
 Look Up Table
 Defective Pixel correction
 Flat Field Correction
 Test Image
 Image Invert
 RS-644 Serial Communication
 Temperature Monitor
 Field Upgrade
 Base Camera Link
 Nanometer Pixel Shift

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5.2 Specifications

VN Series

VN-29MC

Active Image (H × V)

6576 × 4384

Sensor (ON Semiconductor)

KAI-29050

Pixel Size

5.5 ㎛ × 5.5 ㎛

Sensor Output

1, 2 or 4 Tap Output

Video Output

8/10/12 bits, 1 or 2 Tap

Camera Interface

Camera Link (Base)

Electronic Shutter

Global Shutter

Max. Frame Rate
at Full Resolution

×1 (1 Shot)

5 fps @ 28.8 M (6576 × 4384)

×4 (4 Shot)

1.3 fps @ 115.3 M (13152 × 8768)

×9 (9 Shot)

0.6 fps @ 259.5 M (19728 × 13152)

Camera Link Pixel
Clock

1, 2 Tap

40 ㎒

4 Tap

80 ㎒

Exposure Time

1/100000 sec ~ 7 sec (10 ㎲ step)

Partial Scan (Max. Speed)

15.3 fps at 1200 Lines

Gamma Correction

User defined LUT (Look Up Table)

Black Offset

Adjustable (0~127 LSB at 12 bits, 256 step)

Video Gain

Analog Gain: 0 ~ 32 ㏈, 900 step

Trigger Mode

Mode(Free-Run, Overlap, Fast, Double)

Programmable exposure time and trigger polarity

External Trigger

External, 3.3 V - 5.0 V, 10 ㎃, optically isolated

Software Trigger

Camera Link CC1, Programmable Exposure

Dynamic Range

>62 ㏈

Control

RS-232C via Camera Link (115.2 K bps)

Shift Range

0 ~ 15 ㎛, 1 ㎚ step

Shift Resolution

0.001 ㎛

Shift Control

Manual Mode or Sequence Mode (4/9 Shot Mono, 4/16/36 Shot Color)

Shift Latency

< 8 ㎳

Table 5.1 Specifications of VN- 29MC (continuous)

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VN Series

VN-29MC

Lens Mount

F-mount

Power

10~14 V DC, Typ. 10 W / Max. 12 W

Environmental

Operating: 10℃ ~ 40℃, Storage: -40℃ ~ 70℃

Mechanical (H × V × D)

90 ㎜ × 90 ㎜ × 123 ㎜, 1.2 ㎏

Table 5.2 Specifications of VN-29MC

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5.3 Camera Block Diagram

Figure 5.1 VN Camera Block Diagram

All controls and data processing of VN cameras are carried out in one FPGA chip. The FPGA generally consists
of a 32 bit RISC Micro-Controller and Processing & Control Logic. The Micro-Controller receives commands from
the user through the Camera Link interface and then processes them. The FPGA controls the Timing Generators
(TGs) and the Analog Front End (AFE) chips where the TGs generate CCD control signals and AFE chips convert
analog CCD output to digital values to be accepted by the Processing & Control Logic. The Processing & Control
Logic processes the image data received from AFE and then transmits data through the Camera Link interface.
And also, the Processing & Control Logic controls the trigger inputs and strobe outputs which are sensitive to time.
Furthermore, SDRAM and FLASH is installed outside FPGA. SDRAM is used for the frame buffer to process
images and FLASH contains the firmware that operates the Micro-Controller. And, PZT Driver is applied to control
XY Stage with nanometers unit.

Image Processing

And

Control Logic

Micro Controller

AFE+TG 1

H Driver

V Driver

AFE+TG 2

CCD

FLASH

SDRAM

Camera Link

Strobe

Ext. Trig

FPGA

RS644

DATA

CC1

AFE : Analog Front End

TG : Timing Generator

PZT Driver

Nano

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5.4 Spectral Response

5.4.1 Mono Camera Spectral Response

The following graphs show the spectral response for VN Camera Link series monochrome cameras.

Figure 5.2 VN-29MC-M5 Spectral Response

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5.4.2 Color Camera Spectral Response

The following graphs show the spectral response for VN Camera Link series color cameras.

Figure 5.3 VN-29MC-C5 Spectral Response

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5.5 Mechanical Specification

The camera’s dimensions in millimeters are as shown in the following figure.

Figure 5.4 VN Camera Link Mechanical Dimension (F-Mount)

VN Camera Link series

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6 Connecting the Camera

The following instructions assume that you have installed a Camera Link frame grabber in your PC including
related software. For more information, refer to your Camera Link frame grabber User Manual.
To connect the camera to your PC, follow the steps below:

1. Make sure that the power supply is not connected to the camera and your PC is turned off.

2. Plug one end of a Camera Link cable into the Camera Link connector on the camera and the
other end of the Camera Link cable into the Camera Link frame grabber in your PC.

3. Connect the plug of the power adaptor to the power input receptacle on the camera.

4. Plug the power adaptor into a working electrical outlet.

5. Verify all the cable connections are secure.

6.1 Mount Plate

 The Mount Plate is provided as an optional item.
 The camera can be fixed without using this Mount Plate.

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6.2 Precaution to center the image sensor

 User does not need to center the image sensor as it is adjusted as factory default settings.
 When you need to adjust the center of image sensor, please contact your local dealer or the manufacturer for

technical assistance.

6.3 Precaution about blurring compared to center

 User does not need to adjust the tilt as it is adjusted as factory default settings.
 If the tilt settings need to be adjusted inevitably, please contact your local dealer or factory representative for

technical support.

6.4 Installing the Configurator

 You can control the camera by executing the Configurator.exe file.
 You can download the latest Configurator at http://www.vieworks.com.
 Please refer to your Camera Link frame grabber user manual.

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7 Camera Interface

7.1 General Description

As shown in the following figure, 3 types of connectors and status indicator LED are located on the back of the
camera and have the functions as follows:

 ① Status LED: displays power status and operation mode.
 ② 26 pin Camera Link Connector: controls video data transmission and the camera.
 ③ 4 pin Control Receptacle: inputs external trigger signal and outputs strobe.
 ④ 6 pin Power Input Receptacle: supplies power to the camera.

Figure 7.1 VN Series Back Panel

7.2 Camera Link Connector

CAMERA LINK 1

1

13

26

14

Figure 7.2 Camera Link Connector

①

②

③

④

① ② ③

④

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Camera Link connector complies with Camera Link Standard and the following list shows the pin configuration of
the connector.

PAIR List

Pin

Signal Name

Type

Description

PAIR 0
1

Ground

Ground

Cable Shield

14

Ground

Ground

Cable Shield

PAIR 1
2

-X0

LVDS - Out

Camera Link Transmitter

15

+X0

LVDS - Out

Camera Link Transmitter

PAIR 2
3

-X1

LVDS - Out

Camera Link Transmitter

16

+X1

LVDS - Out

Camera Link Transmitter

PAIR 3
4

-X2

LVDS - Out

Camera Link Transmitter

17

+X2

LVDS - Out

Camera Link Transmitter

PAIR 4
5

-X3

LVDS - Out

Camera Link Transmitter

18

+X3

LVDS - Out

Camera Link Transmitter

PAIR 5
6

-XCLK

LVDS - Out

Camera Link Transmitter

19

-XCLK

LVDS - Out

Camera Link Transmitter

PAIR 6
7

- SerTC

LVDS - In

Serial Data Receiver

20

+ SerTC

LVDS - In

Serial Data Receiver

PAIR 7
8

- SerTFG

LVDS - Out

Serial Data Transmitter

21

+ SerTFG

LVDS - Out

Serial Data Transmitter

PAIR 8
9

- CC 1

LVDS - In

Software External Trigger

22

+ CC 1

LVDS - In

Software External Trigger

PAIR 9
10

N/C

N/C

N/C

23

N/C

N/C

N/C

PAIR 10
11

N/C

N/C

N/C

24

N/C

N/C

N/C

PAIR 11
12

N/C

N/C

N/C

25

N/C

N/C

N/C

PAIR 12
13

Ground

Ground

Cable Shield

26

Ground

Ground

Cable Shield

Table 7.1 Pin Assignments for Camera Link Base Configuration

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7.3 Power Input Receptacle

The power input receptacle is a Hirose 6 pin connector (part # HR10A-7R-6PB). The pin assignments and
configurations are as follows:

1

2

3 4

5

6

Figure 7.3 Pin Assignments for 6-pin Power Input Receptacle

Pin Number

Signal

Type

Description

1, 2 , 3

+ 12 V DC

Input

DC Power Input

4 , 5 , 6

DC Ground

Input

DC Ground

Table 7.2 Pin Configurations for Power Input Receptacle

Connecting the power cable to the camera can be made by using the Hirose 6 pin plug (part # HR10A-7P-6S) or
the equivalent. The power adaptor is recommended to have at least 1A current output at 12 V DC ±10% voltage
output (Users need to purchase the power adaptor separately).

Precaution for Power Input

 Make sure the power is turned off before connecting the power cord to the camera.

Otherwise, damage to the camera may result.

 If the voltage applied to the camera is greater than specified in the specifications, damage to

the camera may result.

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7.4 Control I/O Receptacle

The control I/O receptacle is a Hirose 4 pin connector (part # HR10A-7R-4S) and consists of an external trigger
signal input and strobe output ports. The pin assignments and configurations are as follows:

1
2

4

3

Figure 7.4 Pin Assignments for Control I/O Receptacle

Pin Number

Signal

Type

Description

1

Trigger Input +

Input - 2

Trigger Input -

Input - 3

DC Ground

-

DC Ground

4

Strobe Out

Output

3.3 V TTL Output
Output resistance: 47 Ω

Table 7.3 Pin Configurations for Control I/O Receptacle

The mating connector is a Hirose 4 pin plug (part # HR10A-7P-4P) or the equivalent connectors.

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7.5 Trigger Input Circuit

Following figure shows trigger signal input circuit of the 4-pin connector. Transmitted trigger signal is applied to the
internal circuit through a photo coupler. Minimum trigger width that can be recognized by the camera is 1 ㎲. If
transmitted trigger signal is less than 1 ㎲, the camera will ignore the trigger signal. External trigger circuit example

is shown below.

Figure 7.5 Trigger Input Schematic

7.6 Strobe Output Circuit

The strobe output signal is 3.3 V output level of a TTL Driver IC. The pulse width of signal is synchronized with the
exposure signal (shutter) of the camera.

Figure 7.6 Strobe Output Schematic

TRIGGER_IN + 1

2

3

4

HR10A-7R-4SB

330 Ω

PHOTO COUPLER

TRIGGER+

+5V

1 kΩ

USER

TRIGGER-

Camera

3.3 ~ 5 V

0 V

TTL Driver

0 V

3.3 V

Strobe_Out +

Strobe_Out -

47 Ω

Strobe Out

TTL Driver

1

2

3

4

HR10A-7R-4SB

Camera

USER

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8 Camera Features

8.1 Area Of Interest (AOI)

The Area of Interest (AOI) feature allows you to specify a portion of the sensor array. You can acquire only the
frame data from the specified portion of the sensor array while preserving the same quality as you acquire a frame
from the entire sensor array. AOI is determined as the overlapping area of two areas when designating start point
and end point in horizontal and vertical direction as shown in the figure below. Start point and End point mean the
starting and end of the AOI. According to characteristics of the sensor structure, readout of the image will be
proceeded at the top and bottom simultaneously. If the Channel mode is set to 4 Tap and Vertical AOI is applied,
V End will be ignored because V End is defined by V Start. The actual V End will be applied according to the
following formula:

V End = (VSIZE – V Start) - 1

The narrower Vertical AOI is designated, the faster the frame speed will be. However Horizontal AOI does not
affect frame speed. For more information about AOI parameter settings, see “sha” and “sva” command on

Command List.

Figure 8.1 AOI

The AOI values (H × V) may vary depending on the type of frame grabber.
For technical assistance, contact to your local dealer or the manufacturer.

Horizontal AOI

Vertical

AOI

Area Of Interest
(0, VSIZE - 1)

H Start

H End

V Start

V End

(HSIZE - 1, VSIZE - 1)

(HSIZE - 1, 0)

(0, 0)

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The maximum frame speed depending on the change of Vertical AOI can be obtained as shown in the following
expression.

1 or 2 Channel Mode for VN-29M:

Frame Rate (fps) = 1000000 / [T

VCCD

+ TFD × {V

SIZE

– (V

AOI

+ 12)} + (V

AOI

+ 12) × TL]

4 Channel Mode for VN-29M:

Frame Rate (fps) =

1000000 / [T

VCCD

+ TFD × {V

SIZE

– (V

AOI

+ 12)}/2 + {(V

AOI

+ 12) × TL}/2]

T

VCCD

: time required to move electric charges accumulated on pixel to Vertical

Register

TFD: time required for Fast Dump

V

SIZE

: number of Vertical Line of CCD

TL: time required for transmission of one line

V

AOI

: size of Vertical AOI

The available minimum value of T

VCCD

, TFD, V

SIZE

, TL and V

AOI

are as shown in the following table. The value of TL

may vary depending on the channel mode.

VN Series

VN-29M

T

VCCD

56.3 ㎲

TL (1 channel)

172.3 ㎲

TL (2 channel)

90.125 ㎲

TL (4 channel)

90.125 ㎲

TFD

6.8 ㎲

V

SIZE

4384 Lines

Minimum Vertical AOI Size

1200 Lines

Table 8.1 Timing Values for VN Series

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The following figure shows frame rate depending on VAOI changes.

Figure 8.2 Frame Rate by VAOI changes

0

2

4

6

8

10

12

14

16

1200 1518 1837 2155 2474 2792 3110 3429 3747 4066 4384

4 Tap

2 Tap

1 Tap

VN-29M

Frame Rate

AOI Size

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8.2 Binning

Binning has the effects of increasing the level value and decreasing resolution by adding the values of the adjacent
pixels and sending them as one pixel. The camera applies same Binning Factor (2 or 4) to both directions in order
to keep the percentage of image. The below figure shows application of 2 × 2 Binning and 4 × 4 Binning
respectively. Since Binning in vertical direction is processed at internal register of CCD, the frame speed increases
as many as Binning Factor if Binning is applied, but Binning in horizontal direction does not affect frame speed.
Binning Factor is set using “sbf” command.

Figure 8.3 2 × 2 Binning

Figure 8.4 4 × 4 Binning

Even if the binning is performed on the color camera, the resulting image will be monochrome.

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8.3 Trigger Mode

When the Trigger Mode is set to Free-Run, the camera will generate all required trigger signals internally, and
you do not need to apply trigger signals to the camera.
When the Trigger Mode is set to Standard, Fast, Double or Overlap, you must apply a trigger signal to the
camera each time you want to begin a frame acquisition. The Source parameter specifies the source signal that
will act as the trigger signal.
The available settings for the Source parameter are:
 CC1: You can apply a trigger signal to the camera via Camera Link CC1 channel.

For more information, refer to your Camera Link frame grabber user manual.

 Ext.: You can apply a trigger signal to the camera by injecting an externally generated electrical

signal (commonly referred to as a hardware trigger signal) into the Control I/O receptacle on
the camera.

If the Source parameter is set to CC1 or Ext., you must also set the Polarity parameter.
The available settings for the Polarity parameter are:

 Active Low: Specifies that a falling edge of the electrical signal will act as the trigger signal.
 Active High: Specifies that a rising edge of the electrical signal will act as the trigger signal.

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8.3.1 Free-Run Mode

When the Trigger Mode is set to Free-Run, the camera will generate all required trigger signals internally. When

the camera is set this way, the exposure time for each frame acquisition is determined by the value of the camera’s

Exposure Time parameter. The camera will constantly acquire images (repeat exposure and readout) without any
need for triggering by the user.

Figure 8.5 Free-Run Mode

With the Trigger Mode set to Free-Run, the exposure for a new frame will overlap the readout for the previous
frame. The operation of the camera may differ depending on the length of the exposure time and readout time.

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If the exposure time is shorter than the readout time, a shutter signal will be generated while reading out the sensor
data for the previously acquired frame. Then, the camera will begin reading out the sensor data for a new frame
as soon as it finishes reading out the sensor data for the previous frame. In this case, the frame speed will be
constant regardless of changes in the exposure time.

Figure 8.6 Exposure Time is Shorter than Readout Time

If the exposure time is longer than the readout time, the camera will begin the process of reading out a frame each
time a shutter signal is generated. After completing the process of reading out the frame, the camera will not begin
the process of reading out a new frame until the camera completes the process of exposing a new frame. In this
case, the frame speed becomes slower as you increase the exposure time value.

Figure 8.7 Exposure Time is longer than Readout Time

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8.3.2 Standard Mode

When the Trigger Mode is set to Standard, you must trigger exposure start by applying trigger signals to the
camera. Applying a trigger signal to the camera will exit the camera from the waiting for trigger signal acquisition
status and will begin the process of exposing and reading out a frame. After the readout for the frame is complete
and the camera is ready to accept another trigger signal, it will return to the waiting for trigger signal acquisition
status. Trigger signals applied to the camera when it is not in a waiting for trigger signal acquisition status will be
ignored.

Figure 8.8 Standard Trigger Mode

Figure 8.9 Trigger Ignored

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8.3.3 Double

When the Trigger Mode is set to Double, two frames can be acquired with a single trigger signal. When a trigger
signal is applied to the camera, the camera begins the process of exposing the first frame according to the current
exposure time settings. Once the exposure for the first frame is complete, the camera reads out the sensor data.
At this point, the process of exposing the second frame begins. Then, the camera reads out the sensor data for
the second frame after reading out the sensor data for the previous frame.
In the Double mode, the exposure time for the second frame equals to the readout time of the first frame. There
is a just few microseconds (or dozen of microseconds) between the point where the exposure process for the first
frame ends and the point where the exposure process for the second frame begins. This is because the camera
does not generate a shutter signal while reading out the sensor data for the first frame. At this point, the camera
outputs a strobe out signal reflecting the exposure time for the first frame.

Figure 8.10 Double Mode

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8.3.4 Fast Mode

The Fast mode is useful to apply trigger signals with shorter interval than those in the Standard mode. In the Fast
mode, the camera begins the process of reading out the previous frame as soon as a new trigger signal is applied
to the camera. The trigger signal interval determines the exposure time for a frame since the camera does not
generate a shutter signal during the process of reading out a frame.

Figure 8.11 Fast Mode

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8.3.5 Overlap Mode

When the Trigger Mode is set to Overlap, the camera operates in the ‘overlapped’ mode which allows the
exposure for a new frame to overlap the sensor readout for the previous frame. When a new trigger signal is
applied to the camera while reading out the previous frame, the camera begins the process of exposing a new
frame. If you will be operating the camera with the Overlap mode, there are important guidelines to keep in mind:

 You must not begin the exposure for a new frame while the exposure for the previous frame is in progress.
 You must not end the exposure for the current frame until the readout for the previous frame is complete.
 To acquire images with the maximum frame rate, the exposure time must not be longer than the readout

time and the trigger signal interval must not be shorter than the readout time.

The readout time varies depending on the Channel mode as shown in the following table.

Channel Mode

VN-29M

1 channel

763.1 ㎳

2 channel

397.7 ㎳

4 channel

199.6 ㎳

Table 8.2 VN-29MC Readout Time

Figure 8.12 Overlap Mode

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8.4 Channel Mode

The Channel mode determines how the image data in the horizontal register of the CCD will be read out.
The available settings are: 1 Tap (Single Channel), 2 Tap (Dual Channel) or 4 Tap (Quadrant Channel).
With the 1 Tap setting, all pixel values in the horizontal register will be read out from the left bottom Video Amplifier
(Video A). With the 2 Tap setting, pixel values from the left of the CCD will be read out from the Video A and pixel
values from the right of the CCD will be read out from the Video B. With 4 Tap setting, pixel values from the left
bottom of the CCD will be read out from the Video A, pixel values from the right bottom of the CCD will be read
out from the Video B, pixel values from the left top of the CCD will be read out from the Video C, and pixel values
from the right top of the CCD will be read out from the Video D. The advantage of the 4 Tap setting is that it makes
readout about four times faster than the 1 Tap setting. This is true because the four channels are used
simultaneously to read out the sensor.

H x V

Active Pixels

B

G

G

R

B

G

G

R

B

G

G

R

B

G

G

R

B

G

G

R

B

G

G

R

B

G

G

R

B

G

G

R

Left Dark Columns

Right Dark Columns

Dark Rows

Buffer Rows

Buffer Rows

Left Buffer Columns

Right Buffer Columns

Video A Video B

Dummy

Pixels

Horizontal Register

Dark Rows

(1, 1)

Video C Top Horizontal Register Video D

Dummy

Pixels

Dummy

Pixels

Dummy

Pixels

Figure 8.13 Channel Mode

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The image data read out from the CCD goes through image processing and it is reordered to be compliant with
the Camera Link standard. With the 1 Tap setting, image data read out from the Video A will be transmitted in a
Camera Link 1 Tap fashion. With the 2 Tap setting, image data read out form the Video A and B simultaneously
will be transmitted in a Camera Link A, B 2 Tap Interleaved fashion. With the 4 Tap setting, image data read out
from the Video A, B, C and D simultaneously will be transmitted in a Camera Link 2 Tap Top-Bottom fashion.

Figure 8.14 Image Data Flow

Figure 8.15 Data Output

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8.5 Gain and Offset

The camera has one Analog Signal Processor (or Analog Front End, abbreviated to AFE) for each channel. This
AFE consists of Correlated double Sampler (CDS), Variable Gain Amplifier (VGA), Black Level Clamp and 12-bit
A/D converter. AFE has register for Gain and Offset application inside, and can change Gain and Offset value by
entering proper value in the register. Gain can be set between 0 ~ 899. The relationship between setting value
and actual Gain (㏈) is as follows:

Gain(㏈) = (Setting value × 0.035 ㏈)

0

6

12

18

24

30

36

0

100

200

300

400

500

600

700

800

Gain(dB)

Gain Curve

Register Value

Figure 8.16 Register Setting for Gain Value

The Offset value can be set in a range from 0 to 255 (LSB).

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8.6 LUT

LUT (Lookup Table) converts original image value to certain level value. Since it is mapped one to one for each
level value, 12-bit output can be connected to 12-bit input. LUT is in the form of table that has 4096 entries from 0
to 4095 and VN-29MC provides 2 non-volatile spaces for LUT data storage. You can determine whether to apply
LUT and which LUT to use by using the “sls” command. For more information about how to download LUT to the
camera, refer to Appendix B.

12-bit Data

4096 entry

Lookup Table

12-bit Data

Figure 8.17 LUT Block

Figure 8.18 LUT at Gamma 0.5

LUT

0

500

1000

1500

2000

2500

3000

3500

4000

0 500 1000 1500 2000 2500 3000 3500 4000

Input Level

Output Level

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8.7 Defective Pixel Correction

The CCD may have Defect Pixels which cannot properly react to the right. Correction is required since it may
deteriorate the quality of output image. Defect Pixel information of CCD used for each camera is entered into the
camera during the manufacturing process. If you want to add Defect Pixel information, it is required to enter
coordinate of new Defect Pixel into the camera.
For more information, refer to Appendix A. “sdc” command is used to set whether to use Defective Pixel Correction
feature.

8.7.1 Correction Method

Correction value of a Defect Pixel is calculated based on valid pixel value adjacent in the same line.

L3 L2 L1 R1 R2 R3

<Current Pixel>

Figure 8.19 Location of Defect Pixel to be corrected

If Current Pixel is a Defect Pixel as shown in the above figure, correction value of this pixel is obtained as shown
in the following table depending on whether surrounding pixel is Defect Pixel or not.

Adjacent Defect Pixel(s)

Correction value of Current Pixel

None

(L1 + R1) / 2

L1

R1

R1

L1

L1, R1

(L2 + R2 ) / 2

L1, R1, R2

L2

L2, L1, R1

R2

L2, L1, R1, R2

(L3 + R3) / 2

L2, L1, R1, R2, R3

L3

L3, L2, L1, R1, R2

R3

Table 8.3 Calculation of Defect Pixel Correction Value

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8.8 Flat Field Correction

The Flat Field Correction feature improves the image uniformity when you acquire a non-uniformity image due to
external conditions. The Flat Field Correction feature can be summarized by the following equation:

IC = {(IR – IB) × M} / (IF – IB)

IC: Level value of corrected image

IR: Level value of original image

IB: Black offset value

M: Target value of image after correction

IF: Level value of Flat Field data

In the actual use conditions, generate a Flat Field data (IF) and enable the Flat Field Correction feature according
to the following procedures.

1. Set the number of frames to be used for generating the Flat Field data by using the “sfi n” command
(number of frames = 2n).

2. Set the target value M to be applied after correction by using the “sfo” command.

3. Execute the Flat Field Generator by using the “gfd” command. The Flat Field Generator will average series
of frames and scale down to 1/16 pixel to generate the Flat Field data. The Flat Field data will be saved in
the external frame buffer (volatile memory).

4. Enable the Flat Field Correction feature by using the “sfc” command. The Flat Field data will be enlarged via
Bilinear Interpolation as shown in the Figure 8.21.

5. Save the generated Flat Field data in the non-volatile memory by using the “sfd” command for future use.

 Executing the Flat Field Generator will ignore the current camera settings and will

temporarily change the camera settings to operate under the following default conditions.
When the generation of the Flat Field data is complete, the original camera settings will be
restored.

 Readout Mode: Normal
 Trigger Mode: Free-Run
 Defective Pixel Correction: ON

 The target value M is based on the Normal readout mode. If you use different AOI

settings, Binning mode or Channel mode, the level value of an actual image may be
different with the target value.

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Figure 8.20 Generation and Application of Flat Field Data

Figure 8.21 Bilinear Interpolated Magnification

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8.9 Dark Signal Non-uniformity Correction

In theory, when an area scan camera captures a frame in complete darkness, all of the pixel values in the frame
should be near zero and they should be equal. In practice, however, slight variations in the performance of the
pixels in the sensor will cause some variations in the pixel values output from the camera when the camera is
capturing in darkness. This variation is known as Dark Signal Non-uniformity (DSNU). The VN-29M model provides
the DSNU Correction feature.

8.10 Temperature Monitor

Sensor chip is embedded in the camera to monitor the internal temperature. “gct” command is used to check the
temperature of camera.

8.11 Status LED

There is green LED to inform the operation status of camera on the back of camera. LED status and corresponding
camera status are as follows:

 Continuous ON operates in Free-Run Mode.
 Repeat ON for 0.5 seconds, OFF for 0.5 seconds: operates in Trigger Mode.
 Repeat ON for 1 second, OFF for 1 second: outputs Test Image.
 Repeat ON for 0.25 second, OFF for 0.25 second: operates in Trigger Mode and outputs Test Image.

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8.12 Pixel Shifting

The Pixel Shifting camera shifts the image sensor to X and Y direction precisely with 1/2 or 1/3 pixel distance using
2D-Stage. The resulting image can be combined of 4 individual images captured by shifting the image sensor to
X and Y direction with 1/2 pixel distance as shown in the figure below. Thus, the output image offers improved
resolution (4 shot result image) in comparison with standard output image (1 shot result image). Combining the
images should be done on the PC side with software processing. Please contact local dealer or factory
representative for the details on the sample software combining the images.

Figure 8.22 1/2 Comparison of resolution between Pixel Shifting camera and standard camera

 The camera contains components sensitive to heat, shock, or vibration. Handle this camera

with the maximum care. Operate the camera at temperature between 10℃ and 40℃.

 Due to a temperature difference between the product and environment, moisture may

condense inside or outside the camera. This moisture condensation may cause a
malfunction of the camera or shorten the product life cycle. If some condensation occurs,
turn off the camera and wait about an hour for the moisture to evaporate.

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8.12.1 Pixel Shifting and True Color resolution

One benefit of pixel shifting technology in comparison to fixed sensor cameras is its ability to acquire more than 4
times higher resolution than the fixed one. The below figure shows standard output image and ×9 shifting output
image. In case of VN-29MC camera model, the output image will have 19,728 × 13,152 (260 Megapixel) resolution
if the pixel shifting is applied. Otherwise, the resolution of output image is 6,578 × 4,384 (29 Megapixel) without
the pixel shifting.

Figure 8.23 Standard (left) vs 9 Shot Pixel Shifting (right)

1 Shot Mono at 300%

9 Shot Mono at 100%

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Another benefit of pixel shifting technology compared to fixed CCDs is acquiring True Color image. Currently CCD
cameras use Bayer Interpolation to produce color images so that unwanted artifacts can occur such as color moiré
or false color pixels. Using pixel shifting, no color artifacts or aliasing will occur and the color resolution is optimized.

Figure 8.24 Standard Image Color vs Shifting Image Color

Use VN Series camera where subjects are fixed and lighting environment is constant.

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8.12.2 Sequence Mode

8.12.2.1 Components of Sequence Mode

Sequence Mode can be set with following options.

 0. None (Manual)
 1. 4 Shot Mono (Doubled vertical and horizontal resolution)
 2. 9 Shot Mono (Tripled vertical and horizontal resolution)
 3. 4 Shot Bayer Color (Full color resolution)
 4. 16 Shot Bayer Color (Full color resolution, doubled vertical and horizontal resolution)
 5. 36 Shot Bayer Color (Full color resolution, tripled vertical and horizontal resolution)

8.12.2.2 Operation of Sequence Mode

In 1 – 6 sequence modes where the position of the stage has been predefined, the sequence operates by applying
only trigger signal. The default position of the stage is (0, 0) and the following position will vary depending on the
sequence mode. Once one cycle of operation has completed, the stage position returns to (0, 0). When the camera
is running in Free-Run mode, the sequence mode will be deactivated because the sequence mode is synchronized
only with external Trigger or CC1 Trigger. Refer to Appendix D for the position settings according to sequence
modes.
None (Manual) mode is useful when the sequence and stage position need to be configured manually. The user
can configure the stage position using “snp” serial command.
When the user controls the stage using serial command manually, it takes about 16 ㎳ from sending the command
to shifting the stage. This period includes latency of serial communication and shifting time of the stage. Actually,
it takes 8 ㎳ for the stage to be shifted.
To operate correctly in None (Manual) mode, the user needs to calculate the trigger timing considering frame
transfer and stage setup time, and then applies the trigger signal to the camera. The minimum trigger period can
be obtained as shown in the following expression:

 When sum of exposure time and stage setup time is shorter than frame transfer time:
(Frame Transfer Time > Exposure Time + Stage Setup Time)

 Minimum Trigger Period = Frame Transfer Time

 When sum of exposure time and stage setup time is longer than frame transfer time:

(Frame Transfer Time < Exposure Time + Stage Setup Time)

 Minimum Trigger Period = Exposure Time + Stage Setup Time

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Image 1

ReadOut

Image 2

ReadOut

Image N
ReadOut

External

or

Internal

Trigger Input

1 Shot

2 Shot

N Shot

Stage
Setup

Time

Exposure

Stage Position Shifting

.

.

.

.

.

.

Trigger Period

Frame Transfer

Time

8 ms

Figure 8.25 Sequence Mode Timing Diagram

Image 1

ReadOut

Image 2

ReadOut

Image N
ReadOut

External

Trigger Input

1 Shot

2 Shot

N Shot

Stage
Setup

Time

Exposure

Stage Position Shifting

.

.

.

.

.

.

Trigger Period

Frame Transfer Time

16 ms

.

.

.

Position

Shifting

By Serial Port

command“snp x y“

Figure 8.26 Manual Mode Timing Diagram

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8.12.2.3 Multi Shot Mode

When Multi Shot Mode is activated, the sequence operation that is followed by the first trigger input will be
performed automatically by internal trigger. Internal trigger is generated by calculating the optimized timing
reflecting trigger delay and stage setup time. Trigger input from external ports will be ignored until completing the
readout of the last image.

Multi Shot Enable: 1 trigger N snap

Sequence is performed in sequence with one trigger input.

Multi Shot Disable: 1 trigger 1 snap

Exposure synchronizes with trigger input and N times trigger input will be needed

to acquire N images.

Image 1

ReadOut

Image 2

ReadOut

Imager 3
ReadOut

Image 4

ReadOut

External

Trigger Input

FVAL

Stage Reset

Copy Duration

Internal
Trigger

Exposure

+ Shifting

Figure 8.27 Timing Diagram when Multi Shot is enabled on Sequence 4 Shot mode

Image 1

ReadOut

Image 2

ReadOut

Imager 3
ReadOut

Image 4

ReadOut

External

Trigger Input

FVAL

Stage Reset

Exposure

+ Shifting

Figure 8.28 Timing Diagram when Multi Shot is disabled on Sequence 4 Shot Mode

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8.12.2.4 Stage Reset

The stage can be reset by using Reset command (“rnp”) or Camera Link Camera Control Port (CC2) input. Stage
reset performs following two functions depending on the status of the stage.

 Sequence Mode reset

 When stage reset command is entered while running the sequence, the camera stops and resets the

sequence and then returns to waiting status for trigger input.

 Stage Position Sensor Calibration

 Zero points can be changed according to temperature changes since the displacement sensor of the

stage is sensitive to temperature. This function adjusts zero point of displacement sensor so that the
sensor can be maintained within the operating range.

Zero point drift (the displacement sensor strays from the stage’s operating range) may occur
according to a physical change on mechanical parts of the camera or temperature change on
installed environment. In this case, executing a Stage Reset command will compensate zero
point drift to operate the stage normally.

8.12.2.5 Sequence Auto-Reset

This function will be available only when Sequence mode is activated. Sequence Auto-Reset performs Stage
Reset (zero point adjustment) whenever one cycle of sequence is completed.

8.12.2.6 Stage Check

The return values of reset command (“rnp”) or move stage command (“snp”) indicate whether a stage normally
operates or not. If a stage normally operates, it returns “OK”, “Error” otherwise. If Multishot is enabled, it is possible
to check the stage status without using “rnp” command.
When the stage does not normally operate, the camera stops the current sequence and then checks its status via
the number of frame. For example, if you set Sequence Mode to 4 shot, the camera acquires and transfers 4
images normally. However, the camera could unexpectedly stop the sequence so that 4 images cannot be
transferred in abnormal operation status. At this time, you can verify the number of frame to check the stage status.
You can perform more detailed test on the stage by clicking the Stage Check button on the Stage tab of
Configurator. Then you can send test results to local dealer or manufacturer to diagnose the camera stage.

An impact of 10G or more would distort the operation range of stage or alignment of the sensor
and cause permanent damage to the stage since it is mechanically sensitive to shocks. Please
handle the camera with care.

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8.12.2.7 Image Arrangement

To acquire the resulting image, the user needs to combine shifted images into one result image on the PC side
with software processing. Sample source or demo program that is helpful to combine images can be provided from
the local dealer or manufacturer.

8.13 Data Format

Data can be processed in the unit of 12 bit internally, but can be selectively output in the unit of 8, 10 or 12bit at
output. When it is output in 8bit and 10bit unit, lower 4 bit and 2 bit are cut out from overall 12bits.

MSB

LSB

12Bit Output

10Bit Output

8Bit Output

D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

D7 D6 D5 D4 D3 D2 D1 D0

Original

Data

D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0D13 D12

Figure 8.29 Data Format

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8.14 Test Image

To check normal operation of camera, it can be set to output test image created inside, instead of image data from
CCD. There are 3 types of test image; image with different value in horizontal direction (Test Image 1), image with
different value in diagonal direction (Test Image 2), and moving image with different value in diagonal direction
(Test Image 3). Test image can be applied in all operation modes of camera and is set using “sti” command.

Figure 8.30 Test Image 1

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Figure 8.31 Test Image 2

Figure 8.32 Test Image 3

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8.15 Image Invert (Positive/Negative)

Function to invert the level value of output image. Level value inverted differs depending on output data format
even if input value is same. This function can be applied in all operation modes of camera and “sii” command is
used to set whether to use this function or not.

Data Format

Original Value

Inverted Level Value

8 0 255

10 0 1023

12 0 4095

Table 8.4 Inverted level value by Data Format

Figure 8.33 Original image (Positive)

Figure 8.34 Inverted image (Negative)

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8.16 Strobe

The camera provides a Strobe output signal. The signal goes high when the exposure time for each frame
acquisition begins and goes low when the exposure time ends. This signal can be used as a flash trigger and is
also useful when you are operating a system where either the camera or the object being imaged is movable.
Typically, you do not want the camera to move during exposure. You can monitor the Strobe output signal to know
when exposure is taking place and thus know when to avoid moving the camera.

8.16.1 Strobe Offset

The Strobe Offset value specifies a delay that will be applied between the point where the shutter signal rises and
the point where the Strobe output signal rises. The width of Strobe output signal will be the same as the width of
exposure but only the point where the Strobe output signal rises is adjusted. You can set the Strobe Offset in
microseconds by using the “sso” command.

Figure 8.35 Strobe signal in Free-Run

Figure 8.36 Strobe signal in Trigger mode

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8.16.2 Strobe Polarity

Polarity can be set for Strobe signal output. “ssp” command is used to set the polarity of Strobe signal.

8.17 Field Upgrade

The Camera provides the function to upgrade Firmware and FGPA logic through Camera Link interface rather than
disassemble the camera in the field. See Appendix C for details on how to upgrade.

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9 Camera Configuration

9.1 Setup command

All setup in camera is carried out RS-644 serial interface of camera link. With the following communication setting,
it can be controlled using terminal or direct control at user application.

 Baud Rate: 115200 bps
 Data Bit: 8 bit
 Parity Bit: No Parity
 Stop bit: 1 stop bit
 Flow control: None

All types of camera setting commands except Firmware Download, requiring massive data transmission are
delivered in ASCII command type. All camera setup commands start from user application and the camera returns
the response (“OK”, “Error” or information) for command. The camera informs the completion of command
execution through response with write command, while the camera returns the error response or information with
read command.

Command format:

<command> <parameter1> <parameter2> <\r>

0~2 parameters follow the command.

Response:

- If execution of write command is successfully completed

OK <\r> <\n>

ex) Write command

In response to a “set 100” command the camera will return (in hex value)

Command : 73 65 74 20 31 30 30 0D

set 100<\r>

Response : 73 65 74 20 31 30 30 0D 0A 4F 4B 0D 0A 3E

Set 100<\r><\n> OK<\r><\n> >

Echo result prompt

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If execution of read command is successfully completed

<parameter1> <\r> <\n>

ex) Read command

In response to a “get” command the camera will return (in hex value)

Command : 67 65 74 0D

get <\r>

Response : 67 65 74 0D 0A 31 30 30 0D 0A 3E

get<\r><\n> 100<\r><\n> >

echo response prompt

If execution of command is not completed

Error : <Error Code> <\r> <\n>

Prompt:

After sending response, Camera sends prompt always. ‘>’is used as prompt.

Types of Error Code

0x80000481 : values of parameter not valid

0x80000482 : number of parameter is not matched

0x80000484 : command that does not exist

0x80000486 : no execution right

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9.2 Actual Time Applied for Commands

When you execute a command, the actual or real time applied for the command varies depending on the type of
the command and operating status of the camera.
All commands except Set Exposure Time (‘set’) command are applied to change the settings as illustrated below,
on the rising edge of a VCCD signal before starting readout process.
When you execute a ‘set’ command, the exposure time setting will be changed at the starting of the exposure.
In the Trigger mode, you must execute commands before applying trigger signals in order to synchronize image
outputs with the commands.
In the Free-Run mode, even if you execute a command, you may acquire up to two images without applying the
command. This is true because it is hard to verify the current operating status of the camera in the Free-Run mode.

Figure 9.1 Actual Time Applied for Commands

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9.3 Parameter Storage Space

The camera has 3 non-volatile storage space used for parameter storage and 1 volatile work space that is applied
to actual camera operation. 3 storage space is divided into Factory Space that contain basic value at the factory,
and 2 user space(User Space 1, User Space 2) that can save parameter value temporarily set by the user. User
space can be read and written, but Factory space can be read only.
At camera booting, setting value in one of 3 storage spaces is copied to work space according to Config
Initialization value and value of the space is used for camera setting. Since values in work space is valid only while
the power is on, it should be copied to user space 1 or user space 2 using “sct” command.

Volatile

Memory

(RAM)

Non_volatile

Memory

(ROM)

Work Space

User 1 Space

User 2 Space

Factory Space

Figure 9.2 Parameter Area

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9.4 Command List

Command

Syntax

Value

Returned

Description

Help

h

String

Displays a list of all commands

Set Read-Out Mode
Get Read-Out Mode

srm 0|1|2
grm

OK
0|1|2

0: Normal mode
1: AOI (Area Of Interest) mode (AOI is set
using “sha” and “sva” commands)
2: Binning (2 or 4) mode (Binning Factor is
set using “sbf” command)

Set Horizontal Area
Get Horizontal Area

sha n1 n2
gha

OK
n1 n2

n1: Starting point of horizontal direction
n2: End point of horizontal direction

Set Vertical Area
Get Vertical Area

sva n1 n2
gva

OK
n1 n2

n1: Starting point of vertical direction
n2: End point of vertical direction

Set Binning Factor
Get Binning Factor

sbf 2|4
gbf

OK
2|4

2: 2 by 2 binning
4: 4 by 4 binning

Set Test Image
Get Test Image

sti 0|1|2|3
gti

OK
0|1|2|3

0: Off
1/2: Fixed pattern image
3: Moving pattern image

Set Data Bit
Get Data Bit

sdb 8|10|12
gdb

OK
8|10|12

8: 8 bit output
10: 10 bit output
12: 12 bit output

Set LUT Select
Get LUT Select

sls 0|1|2
gls

OK
0|1|2

0: Off
1: LUT1
2: LUT2

Set Asynchronous Reset
Get Asynchronous Reset

sar 0|1
gar

OK
0|1

0: Inactivate Asynchronous Reset
1: Activate Asynchronous Reset

Set Channel Mode
Get Channel Mode

scm 1|2|4
gcm

OK
1|2|4

1: 1 channel mode
2: 2 channel mode
4: 4 channel mode

Set Defect Correction
Get Defect Correction

sdc 0|1
gdc

OK
0|1

0: Off
1: Active of Defect Correction

Table 9.1 Command List #1

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Command

Syntax

Value

Returned

Description

Set Image Invert
Get Image Invert

sii 0|1
gii

OK
0|1

0: Off
1: Active of Image Invert

Set Trigger Mode
Get Trigger Mode

stm 0|1|2|3|4
gtm

OK
0|1|2|3|4

0: Free-Run mode
1: Standard mode
2: Fast mode
3: Double mode
4: Overlap mode

Set Exposure Source
Get Exposure Source

ses 0|1
ges

OK
1|2

0: Program Exposure (by camera)
1: Pulse Width (by trigger input signal)

Set Trigger Source
Get Trigger Source

sts 1|2
gts

OK
1|2

1: CC1 port input (Camera Link)
2: External input (External control port)

Set Trigger Polarity
Get Trigger Polarity

stp 0|1
gtp

OK
0|1

0: Active low
1: Active high

Set Exposure Time
Get Exposure Time

set n
get

OK
n

n: Exposure Time in ㎲
(Setting range: 10 ~ 7,000,000 ㎲)

Set Strobe Offset
Get Strobe Offset

sso n
gso

OK
n

n: Strobe Offset Time in ㎲
(Setting range: 0 ~ 10,000 ㎲)

Set Strobe Polarity
Get Strobe Polarity

ssp 0|1
gsp

OK
0|1

0: Active low
1: Active high

Set Analog Gain
Get Analog Gain

sag n
gag

OK n n: Analog Gain parameter
(Setting range: 0 ~ 899)

Set Gain Offset
Get Gain Offset

sgo 2|3|4 n
ggo 2|3|4

OK
n

2: AFE channel for the right top of image
3: AFE channel for the left bottom of image
4: AFE channel for the right bottom of image
n: Analog Gain Offset parameter
(Setting range: -20 ~ +20)

Auto Gain Offset

ago

OK

Auto-Generation Gain Offset

Set Analog Offset
Get Analog Offset

sao n
gao

OK n n: Analog Offset parameter
(Setting range: 0 ~ 255)

Table 9.2 Command List #2

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Command

Syntax

Value Returned

Description

Set Offset Offset
Get Offset Offset

soo 1|2|3|4 n
goo 1|2|3|4

OK
n

1: AFE channel for the left top of image
2: AFE channel for the right top of image
3: AFE channel for the left bottom of image
4: AFE channel for the right bottom of image
n: Analog Offset Offset parameter
(Setting range: 0~12)

Generate Flat Field Data

gfd

OK

Operate Flat Field generator

Save Flat Field Data

sfd

OK

Save Flat Field data

Load Flat Field Data

lfd

OK

Load Flat Field data

Set Flat Field Iteration
Get Flat Field Iteration

sfi n
gfi

OK n n: (2 ^ n) image acquisitions
(Setting range: 0 ~ 4)

Set Flat Field Offset
Get Flat Field Offset

sfo n
gfo

OK n n: Flat Field target level
(Setting range: 0 ~ 4095)

Set Flat Field Correction
Get Flat Field Correction

sfc 0|1
gfc

OK
0|1

0: Off
1: Active of Flat-Field Correction

Table 9.3 Command List #3

Command

Syntax

Value Returned

Description

Load Config From

lcf 0|1|2

OK

0: Load from Factory Setting
1: Load from User 1 Setting
2: Load from User 2 Setting

Save Config To

sct 1|2

OK

0: Save to User 0 Setting (not available)
1: Save to User 1 Setting
2: Save to User 2 Setting

Set Config Initialization
Get Config Initialization

sci 0|1|2
gci

OK
0|1|2

0: Load from Factory Setting when initializing
1: Load from User 1 Setting when initializing
2: Load from User 2 Setting when initializing

Get MCU Version

gmv

String

Display MCU version

Get Model Number

gmn

String

Display Model Number

Get FPGA Version

gfv

String

Display FPGA version

Get Serial Number

gsn piece

String

Display Serial Number

Get Current Temperature

gct

String

Display Temperature value

Table 9.4 Command List #4

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Command

Syntax

Value

Returned

Description

Set Nano-Stage Position
Get Nano-Stage Position

snp <axis> <pos>
gnp <axis>

OK
<pos>

Move stage to specified position
Axis: x or y
Pos: position
Ex) snp x 50: move stage to 50㎚ position
toward x coordinate.

Reset Nano-Stage Position

rnp

-

Reset stage position to (0, 0) & Calibrate
stage position sensor.

Set Sequence Mode
Get Sequence Mode

ssm 0|1|2|3|4|5
gsm

OK
0|1|2|3|4|5

0: None (Manual)
1: 4 Shot Mono
2: 9 Shot Mono
3: 4 Shot Color
4: 16 Shot Color
5: 36 Shot Color

Set Multi Shot Enable
Get Multi Shot Enable

sme 0|1
gme

OK
0|1

0: Disable
1: Enable

Set Reset Polarity
Get Reset Polarity

srp 0|1
grp

OK
0|1

Set Camera Link – CC2 port (Stage Reset)
polarity
0: Active low
1: Active high

Set Sequence Auto-Reset
Get Sequence Auto-Reset

ssr 0|1
gsr

OK
0|1

Stage reset after stage sequence
0: Off
1: On

Table 9.5 Command List #5

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10 Configurator GUI

Configurator, a sample application, is provided to control VN Series camera. Configurator provides easy-to-use
Graphic User Interface (GUI) for the user while using the commands mentioned previous chapters.

10.1 VN Camera Scan

When you execute the program while the camera is turned on, Camera Scan window appears as shown in the
figure below. At this time, the program checks serial port of computer and DLL provided by camera link to scan
whether the camera is connected. If there is a camera connected, it displays model name on the screen. If the
camera is not properly displayed on the screen, check the connection of cable with power of camera and press
refresh button. When you double-click model name displayed on the screen, Configurator is executed and displays
current setting value of camera connected.

Figure 10.1 Configurator Loading Window

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10.2 Menu

10.2.1 File

Figure 10.2 File menu

 Load Setting: Loads the camera setting values from the camera memory (i.e., specified as

Factory, User1 or User2) or user computer (From File).

 Save Setting: Saves the camera setting values to the camera memory (i.e., specified as

User1 or User2) or user computer (To File).

 Defect Pixel: Downloads defect information to the camera (Download to Camera) or uploads

defect information saved in the camera to user computer (Upload to PC).

 System Upgrade: Upgrades MCU program or FPGA logic.
 Exit: Exits Configurator.

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10.2.2 Start-Up

The user can select the camera setting values to load when the camera is turned on.

Figure 10.3 Start-Up Menu

 Factory Setting: Loads the camera setting values from Factory Space.
 User1 Setting: Loads the camera setting values from User1 Space.
 User2 Setting: Loads the camera setting values from User2 Space.

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10.2.3 Tool

Figure 10.4 Tool Menu

 Refresh: Loads and displays the current camera setting values on Configurator.
 Terminal: Displays user commands in Terminal window under GUI. To hide Terminal

window, uncheck Terminal by clicking again.

 Color Calibration: Performs Bayer sensor color calibration.
 Factory Setting: Not supported in the user side.
 High Speed: Not supported on VN-29MC.

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10.2.4 About

Figure 10.5 About Menu

 Camera Info: Displays camera information (product name, serial number, version, etc).

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10.3 Tab

10.3.1 VIEW Tab

VIEW tab allows the user to set the camera readout mode, test image mode, data bit, channel, LUT, image
processing, etc.

Figure 10.6 VIEW Tab

 Mode: Selects readout mode. If AOI is selected, AOI setting area is activated

and AOI can be set by entering desired values. If Binning is selected, ×2,
×4 option buttons are activated.

 Test Image: Selects whether to apply test image and type of test image.
 Data Bit: Selects width of data output.
 Channel: Selects channel mode.
 LUT: Selects whether to apply LUT and type of LUT.
 Imaging Processing: Sets Flat Field Correction, Defect Correction or Image Invert features On or Off.

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10.3.2 MODE/EXP Tab

MODE/EXP tab allows the user to select trigger mode, exposure time and strobe. All scroll bars are controllable
with the mouse wheel scroll.

Figure 10.7 MODE/EXP Tab

 Trigger Mode: Selects trigger mode. Once a mode has been selected, related selections

will be activated.

 Exposure: Selects exposure source.
 Source: Selects trigger source.
 Polarity: Selects polarity of trigger input.
 Asynchronous Reset: Sets asynchronous reset On or Off.
 Frame Number After triggered: Activated in Standard mode and sets the number of frame to receive after

triggering.

 Exposure Time: Sets exposure time when trigger mode is set with Free-Run mode or when

Exposure is set with Program.

 Strobe Offset: Sets strobe offset.
 Strobe Polarity: Sets the polarity of strobe output signal.

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10.3.3 ANALOG Tab

ANALOG tab allows the user to set gain and offset settings of the image. All scroll bars are controllable with the
mouse wheel scroll.

Figure 10.8 ANALOG Tab

 Analog Gain: Sets gain value of each channel. Auto Adjustment will be activated after checking

Adjustment and compensates Tap differences automatically.

 Analog Offset: Sets offset values of both channels.

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10.3.4 LUT Tab

LUT tab allows the user to download LUT data. See Appendix B for more details on LUT Download.

Figure 10.9 LUT Tab

 Graph: Loads LUT data from the user computer or sets Gamma value to be

applied while using Gamma curve.

 Camera LUT Download / Upload: Downloads LUT data to camera from the user computer (Download)

or uploads LUT data saved in the camera to the user computer
(Upload to PC).

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10.3.5 FFC Tab

FFC tab allows the user to set Flat Field Correction settings. All scroll bars are controllable with the mouse wheel
scroll.

Figure 10.10 FFC Tab

 FFC data: Generates the FF data to be used for correction and sets how many images

will be used for the generation.

 Flash Memory: Saves the generated FF data to Flash in order to reuse in the future or retrieves

the saved FF data.

 FFC Data Download / Upload: Downloads FFC Data from the user computer (Download to camera) or

uploads FFC Data to the user computer (Upload to PC).

 FFC offset Level: Sets the offset value of the image after Flat Field Correction is applied.

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10.3.6 Stage Tab

Before setting the stage, the user must set MODE/EXP tab with following values.

Figure 10.11 MODE/EXP settings for Nano-Stage Control

 Trigger Mode: Overlap
 Exposure: Pulse Width
 Source: CC1
 Polarity: Active High

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Stage tab allows the user to set Sequence Mode and Nano-Stage.

Figure 10.12 Stage Tab

 Sequence Mode: Selects Sequence Mode. Deactivated in Free-Run Mode.

ex) ssm 0 ← None (Manual), ssm 1 ← 4 Shot Mono

 Nano-Stage Position[㎚]

 X: Sets the stage position of X (Horizontal) direction (applicable range: 0 ~ 15,000 ㎚).
 Y: Sets the stage position of Y (Vertical) direction (applicable range: 0 ~ 15,000 ㎚).

 Multi Shot Mode: Sets Multi Shot Mode.

 Enable: 1 trigger N snap solution
 Disable: 1 trigger 1 snap solution

ex) sme0 ← Disable, sme1 ← Enable

 CC2 Reset Polarity: Sets the reset polarity using CC2.
 Stage Reset: Initializes the stage position and adjusts zero point of displacement sensor.
 Stage Check: Performs a self-test of the stage.

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11 Troubleshooting

When you have a problem with a Vieworks camera, please check the following items.

 If no image is displayed on your computer,

 Ensure that all the cable connections are secure.
 Ensure that the power supply is properly connected.
 Ensure that trigger signal is applied correctly when you use external trigger mode.

 If images are not clear,

 Ensure the camera lens or glass is clean.
 Check the lens aperture is adjusted properly.

 If images are dark,

 Ensure your camera lens is not blocked.
 Check the exposure time is set properly.

 If you identify abnormal operation or overheating sign,

 Ensure the power supply is properly connected.
 Stop using the camera when you notice smoke or abnormal overheating.

 If you have a problem using the Trigger Mode,

 Ensure that the trigger related parameters on your Frame Grabber are configured correctly when you use

CC1 trigger mode.

 Ensure that cable connections are secure when you use external trigger mode.

 If you notice the difference between left and right image,

 Check whether left and right gain settings are different.
 Check whether left and right offset settings are different.

 If there is a communication failure between the camera and computer,

 Ensure Camera Link cables are connected properly.
 Ensure that you have configured a Frame Grabber in your computer correctly and the camera is

connected properly to the Frame Grabber.

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Appendix A Defective Pixel Map Download

1. Create the Defective Pixel Map data in Microsoft Excel format as shown in the left picture below and save
as a CSV file (*.csv). The picture in the right shows the created Excel file opened in Notepad. The following
rules need to be applied when creating the file.

 Lines beginning with ‘:’ or ‘—‘ are treated as notes.
 Each row is produced in the order of the horizontal and vertical coordinate values.
 The input sequence of pixel is irrelevant.

2. Select File > Defect Pixel > Download to Camera on Configurator.

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3. Search and select the created file and click Open.

4. Configurator starts downloading defective pixel map data to the camera and downloading status is
displayed at the bottom of the window.

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5. Once the download has been completed, the saving process will begin. During the saving process, make
sure not to disconnect the power cord.

6. Once all the processes have been completed, Download completed message will appear at the bottom of
the window.

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Appendix B LUT Download

LUT data can be created in two ways; by adjusting the gamma values on the gamma graph provided in the program
and then downloading the data or by opening a CSV file (*.csv) and then downloading the data.

B.1 Gamma Graph Download

1. Set a desired gamma value on LUT tab and click Apply.

2. Select LUT1 or LUT2 as a location to store the data and click Download.

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3. Once the download has been completed, Download completed message will appear at the bottom of the
window.

B.2 CSV File Download

1. Create the LUT table in Microsoft Excel format as shown in the left picture below and save as a CSV file
(*.csv). The picture in the right shows the created file opened in Notepad. Once the file has been created
completely, change the .csv file extension to .lut. The following rules need to be applied when creating the
file.

 Lines beginning with ‘:’ or ‘—‘ are treated as notes.
 Based on the input values, make sure to record from 0 to 4095.

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2. Click Load File on LUT tab.

3. Search and select the created LUT file and click Open.

4. Select LUT1 or LUT2 as location to store the data and click Download. The subsequent processes are
identical to those of Gamma Graph Download.

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Appendix C Field Upgrade

C.1 MCU

1. Select File > System Upgrade > MCU Upgrade on Configurator.

2. Search and select the provided MCU upgrade file (*.srec) then click Open.

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3. Configurator starts downloading MCU upgrade file to the camera and downloading status is displayed at the
bottom of the window. If you want to cancel the upgrade process, click Cancel. This process requires
several minutes to complete.

4. Once the download has been completed, the saving process will begin. During the saving process, the
camera cannot be restored if a power failure occurs. Make sure that the power connection is secured.

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5. Once all the processes have been completed, turn the power off and turn it back on again. Select Tool >
Terminal and enter the “gmv” command to confirm the version. Or, select About > Camera Info to confirm
the MCU version.

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C.2 FPGA

1. Select File > System Upgrade > FPGA Upgrade on Configurator.

2. Search and select the provided FPGA upgrade file (*.bin) and click Open.

3. The subsequent processes are identical to those of MCU upgrade.

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Appendix D Position settings according to sequence modes

Ratio for 1 Pixel

Order

4 Shot Mono

9 Shot Mono

4 Shot Bayer Color

16 Shot Bayer Color

36 Shot Bayer Color

X Y X Y X Y X Y X

Y

1

0 0 0 0 0 0 0 0 0

0

2

1/2 0 1/3 0 1 0 1 0 1 0 3

0

1/2

2/3 0 0 1 0 1 0

1

4

1/2

1/2 0 1/3 1 1 1 1 1 1 5 - - 1/3

1/3 - -

1/2 0 1/3 0 6

- - 2/3

1/3 - -

3/2 0 4/3

0

7

- - 0

2/3 - -

1/2 1 1/3

1 8 - - 1/3

2/3 - -

3/2 1 4/3 1 9

- - 2/3

2/3 - - 0 1/2

2/3

0

10

- - - - - - 1

1/2

5/3

0

11

- - - - - - 0

3/2

2/3 1 12

- - - - - - 1

3/2

5/3

1

13

- - - - - - 1/2

1/2 0 1/3

14

- - - - - - 3/2

1/2 1 1/3

15

- - - - - - 1/2

3/2 0 4/3

16

- - - - - - 3/2

3/2 1 4/3

17

- - - - - - - - 1/3

1/3

18

- - - - - - - - 4/3

1/3

19

- - - - - - - - 1/3

4/3

20

- - - - - - - - 4/3

4/3

21

- - - - - - - - 2/3

1/3

22

- - - - - - - - 5/3

1/3

23

- - - - - - - - 2/3

4/3

24

- - - - - - - - 5/3

4/3

25

- - - - - - - - 0

2/3

26

- - - - - - - - 1

2/3

27

- - - - - - - - 0

5/3

28

- - - - - - - - 1

5/3

29

- - - - - - - - 1/3

2/3

30

- - - - - - - - 4/3

2/3

31

- - - - - - - - 1/3

5/3

32

- - - - - - - - 4/3

5/3

33

- - - - - - - - 2/3

2/3

34

- - - - - - - - 5/3

2/3

35

- - - - - - - - 2/3

5/3

36

- - - - - - - - 5/3

5/3

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