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VH-2MC
User Manual
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User Manual
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Vieworks VH-310C, VH-11MC, VH-2MC, VH Camera Link Series, VH-16MC User Manual

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VH Camera Link series
Version
Date
1.0
2009-12-17
1.1
2010-04-12
1.2
2010-09-17
1.3
2010-11-05
2.0
2013-02-04
2.1
2013-06-14
2.2
2014-09-19
2.3
2015-04-22
2.4
2016-03-22
2.5
2016-11-11
2.6
2017-03-24
Revision History
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VH Camera Link series
Contents
1 Precautions ....................................................................................................................... 6
2 Warranty ............................................................................................................................ 7
3 Compliance & Certifications ............................................................................................ 7
3.1 FCC Compliance ................................................................................................................ 7
3.2 CE: DoC ............................................................................................................................. 7
3.3 KC ...................................................................................................................................... 7
4 Package Components ...................................................................................................... 8
5 Product Specifications ................................................................................................... 10
5.1 Model ............................................................................................................................... 10
5.2 Specifications ................................................................................................................... 11
5.3 Camera Block Diagram .................................................................................................... 13
5.4 Spectral Response ........................................................................................................... 14
5.4.1 Mono Camera Spectral Response ..................................................................................................14
5.4.2 Color Camera Spectral Response ...................................................................................................17
5.5 Mechanical Specification .................................................................................................. 20
6 Connecting the Camera .................................................................................................. 23
6.1 Mount Plate ...................................................................................................................... 23
6.2 Precaution to Center the Image Sensor ........................................................................... 24
6.3 Precaution about Blurring Compared to Center ............................................................... 24
6.4 Installing the Configurator ................................................................................................ 24
7 Camera Interface ............................................................................................................. 25
7.1 General Description ......................................................................................................... 25
7.2 Camera Link Connector ................................................................................................... 25
7.3 Power Input Receptacle ................................................................................................... 27
7.4 Control I/O Receptacle ..................................................................................................... 28
7.5 Trigger Input Circuit .......................................................................................................... 29
7.6 Strobe Output Circuit ........................................................................................................ 29
8 Camera Features ............................................................................................................. 30
8.1 Area of Interest ................................................................................................................. 30
8.2 Binning ............................................................................................................................. 33
8.3 Trigger .............................................................................................................................. 34
8.3.1 Trigger Input ....................................................................................................................................34
8.4 Channel Mode .................................................................................................................. 40
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VH Camera Link series
8.5 Gain and Offset ................................................................................................................ 42
8.6 LUT .................................................................................................................................. 43
8.7 Defective Pixel Correction ................................................................................................ 44
8.7.1 Correction Method ...........................................................................................................................44
8.8 Flat Field Correction ......................................................................................................... 45
8.9 Temperature Monitor ........................................................................................................ 47
8.10 Status LED ....................................................................................................................... 47
8.11 Data Format ..................................................................................................................... 47
8.12 Test Image ........................................................................................................................ 48
8.13 Horizontal Flip .................................................................................................................. 50
8.14 Image Invert ..................................................................................................................... 51
8.15 Strobe ............................................................................................................................... 52
8.15.1 Strobe Offset ....................................................................................................................................52
8.15.2 Strobe Polarity .................................................................................................................................53
8.15.3 Field Upgrade ..................................................................................................................................53
9 Camera Configuration .................................................................................................... 54
9.1 Setup Command .............................................................................................................. 54
9.2 Actual Time Applied for Commands ................................................................................. 56
9.3 Parameter Storage Space ................................................................................................ 57
9.4 Command List .................................................................................................................. 58
10 Configurator GUI ............................................................................................................. 61
10.1 Camera Scan ................................................................................................................... 61
10.2 Menu ................................................................................................................................ 62
10.2.1 File ...................................................................................................................................................62
10.2.2 Start-Up ...........................................................................................................................................63
10.2.3 Tool ..................................................................................................................................................64
10.2.4 About ...............................................................................................................................................65
10.3 Tab ................................................................................................................................... 66
10.3.1 VIEW Tab .........................................................................................................................................66
10.3.2 MODE/EXP Tab ...............................................................................................................................67
10.3.3 ANALOG Tab ...................................................................................................................................68
10.3.4 LUT Tab ...........................................................................................................................................69
10.3.5 FFC Tab ...........................................................................................................................................70
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VH Camera Link series
11 Troubleshooting .............................................................................................................. 71
Appendix A Defective Pixel Map Download .................................................................... 72
Appendix B LUT Download ............................................................................................... 75
B.1 Gamma Graph Download ................................................................................................ 75
B.2 CSV File Download .......................................................................................................... 76
Appendix C Field Upgrade ................................................................................................ 78
C.1 MCU ................................................................................................................................. 78
C.2 FPGA ............................................................................................................................... 81
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VH Camera Link series
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.  Do not store the device at a higher temperature. In addition, maintain the temperature of
the camera housing in a range of -5℃ to 40℃ during operation. Otherwise the device may be damaged by excessively high temperatures.
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.
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.
1 Precautions
General
Installation and Maintenance
Power Supply
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VH Camera Link series
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.
2 Warranty
Do not open the housing of the camera. The warranty becomes void if the housing is opened. For information about the warranty, please contact your local dealer or factory representative.
3 Compliance & Certifications
3.1 FCC Compliance
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 his own expenses.
3.2 CE: DoC
EMC Directive 2014/30/EU EN 55032:2012 (Class A), EN 55024:2010 Class A
3.3 KC
KCC Statement
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VH Camera Link series
Package Components
VH Camera with C mount, VH Camera with F mount or
VH-310C Camera with C mount
Mount Plate (Optional)
4 Package Components
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VH Camera Link series
Package Components
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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VH Camera Link series
5 Product Specifications
5.1 Model
VH Camera Link series is a progressive scan, high resolution industrial digital camera. All features of the camera can be programmed and updated in the field. The image processing and controls of VH Camera Link series are based on embedded FPGA with a 32 bit microprocessor.
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  Electronic Shutter – Global Shutter  Strobe Output  Analog Gain adjustment function  Analog Offset adjustment function  Lookup Table  Pixel Defect Correction  Test Image  Horizontal Flip  Image Invert  RS-644 Serial Communication  Temperature Monitor  Field Upgradeable Firmware  Base Camera Link
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VH Camera Link series
VH Camera Link Series
VH-310C
VH-2MC
VH-4MC
Active Image (H × V)
640 × 480
1600 × 1200
2048 × 2048
Sensor Type
Truesense Imaging
KAI-0340
Truesense Imaging
KAI-2020
Truesense Imaging
KAI-4021
Sensor Size (Optical Format)
1/3”
1”
4/3”
Pixel Size
7.4 ㎛ × 7.4 ㎛
Sensor Output
1 or 2 Tap
Pixel Data Format
8/10/12 bits
Dynamic Range
> 60 ㏈
> 62 ㏈
Camera Interface
Camera Link
Electronic Shutter
Global Shutter
Max. Frame Rate at Full Resolution
140 / 264 fps
23 / 42 fps
11 / 20 fps
Camera Link Pixel Clock
50 ㎒
Exposure Time (10 ㎲ step)
16 ㎲ ~ 7s
38 ㎲ ~ 7s
66 ㎲ ~ 7s
Partial Scan (Max. Speed)
1290 fps at 60 Lines
146 fps at 150 Lines
77 fps at 256 Lines
Binning
×2, ×4 (Horizontal and Vertical Independent)
Lookup Table
G=1.0, User Defined Lookup Table (LUT)
Black Level
Adjustable (0 ~ 127 LSB at 12 bit, 256 steps)
Analog Gain
0 ~ 32 ㏈, 900 steps
Trigger Mode
Free Run, Standard, Fast, Double, Overlap
Programmable Exposure Time and Trigger Polarity
External Trigger
3.3 V ~ 5.0 V, 10 ㎃, optically isolated
Software Trigger
Camera Link CC1
Lens Mount
C-mount
C-mount or F-mount
Power Requirements
10 ~ 14 V DC
Typ. 4 W / Max. 5 W
10 ~ 14 V DC
Typ. 5 W / Max. 6 W
10 ~ 14 V DC
Typ. 5.5 W / Max. 7 W
Environmental
Operating: -5℃ ~ 40℃, Storage: -40℃ ~ 70℃
Mechanical
49 ㎜ × 49 ㎜ × 52.8 ㎜, 190 g (VH-310C) 68 ㎜ × 68 ㎜ × 54 ㎜, 420 g (with C-mount) 68 ㎜ × 68 ㎜ × 83 ㎜, 460 g (with F-mount)
5.2 Specifications
VH Camera Link series technical specifications are as follows.
Table 5.1 Specifications of VH Camera Link Series (VH-310/2/4MC)
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VH Camera Link series
VH Camera Link Series
VH-11MC
VH-16MC
Active Image (H × V)
4008 × 2672
4872 × 3248
Sensor Type
Truesense Imaging
KAI-11002
Truesense Imaging
KAI-16000
Sensor Size (Optical Format)
35 ㎜
35 ㎜
Pixel Size
9.0 ㎛ × 9.0 ㎛
7.4 ㎛ × 7.4 ㎛
Sensor Output
1 or 2 Tap
Pixel Data Format
8/10/12 bits
Dynamic Range
> 64 ㏈
Camera Interface
Camera Link (Base)
Electronic Shutter
Global Shutter
Max. Frame Rate at Full Resolution
3.4 / 6.4 fps
2.2 / 4.2 fps
Camera Link Pixel Clock
Normal Speed: 30 ㎒ / High Speed: 40 ㎒
Exposure Time (10 ㎲ step)
132 ㎲ ~ 7s
216 ㎲ ~ 7s
Partial Scan (Max. Speed)
30 fps at 334 Lines
12 fps at 406 Lines
Binning
×2, ×4 (Horizontal and Vertical Independent)
Lookup Table
G=1.0, User Defined Lookup Table (LUT)
Black Level
Adjustable (0 ~ 127 LSB at 12 bit, 256 steps)
Analog Gain
0 ~ 32 ㏈, 900 steps
Trigger Mode
Free Run, Standard, Fast, Double, Overlap
Programmable Exposure Time and Trigger Polarity
External Trigger
3.3 V ~ 5.0 V, 10 ㎃, optically isolated
Software Trigger
Camera Link CC1
Lens Mount
C-mount or F-mount
Power Requirements
10 ~ 14 V DC
Typ. 6.5 W/Max. 9.5 W
10 ~ 14 V DC
Typ. 6 W / Max. 8 W
Environmental
Operating: -5℃ ~ 40℃, Storage: -40℃ ~ 70℃
Mechanical
68 ㎜ × 68 ㎜ × 54 ㎜, 420 g (with C-mount)
68 ㎜ × 68 ㎜ × 83 ㎜, 460 g (with F-mount)
Table 5.2 Specifications of VH Camera Link Series (VH-11/16MC)
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VH Camera Link series
H Driver
V Driver
Strobe
Ext. Trig
FPGA
RS644
DATA
CC1
AFE : Analog Front End
TG : Timing Generator
5.3 Camera Block Diagram
AFE+TG 1
CCD
AFE+TG 2
Figure 5.1 Camera Block Diagram
All controls and data processing of the 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 &
Image Processing
And
Control Logic
Micro Controller
FLASH
Camera Link
SDRAM
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 input and output signal 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.
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VH Camera Link series
5.4 Spectral Response
5.4.1 Mono Camera Spectral Response
The following graphs show the spectral response for VH Camera Link series monochrome cameras.
Figure 5.2 VH-310C-M264 Spectral Response
Figure 5.3 VH-2MC-M42 Spectral Response
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VH Camera Link series
Figure 5.4 VH-4MC-M20 Spectral Response
Figure 5.5 VH-11MC-M6 Spectral Response
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VH Camera Link series
Figure 5.6 VH-16MC-M4 Spectral Response
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VH Camera Link series
5.4.2 Color Camera Spectral Response
The following graphs show the spectral response for VH Camera Link series color cameras.
Figure 5.7 VH-310C-C264 Spectral Response
Figure 5.8 VH-2MC-C42 Spectral Response
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VH Camera Link series
Figure 5.9 VH-4MC-C20 Spectral Response
Figure 5.10 VH-11MC-C6 Spectral Response
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VH Camera Link series
Figure 5.11 VH-16MC-C4 Spectral Response
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VH Camera Link series
5.5 Mechanical Specification
The camera dimensions in millimeters are as shown in the following figure.
Figure 5.12 VH Camera Link Series C-mount Mechanical Dimension
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VH Camera Link series
Figure 5.13 VH Camera Link Series F-mount Mechanical Dimension
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VH Camera Link series
Figure 5.14 VH-310C C-mount Mechanical Dimension
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VH Camera Link series
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.  The mount plate is integrated for VH-310C model.
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VH Camera Link series
6.2 Precaution to Center the Image Sensor
Users do not need to center the image sensor as it is adjusted as factory default settings.  When you need to adjust the center of the image sensor, please contact your local dealer or the
manufacturer for technical assistance.
6.3 Precaution about Blurring Compared to Center
Users do 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 Frame Grabber User Manual.
Page 24 of 82 RA14-132-001
VH Camera Link series
CAMERA LINK 1
1
13
26
14
VH-310C
①
②
③
④
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 26 pin Camera Link Connector: controls video data and the camera.  ② Status LED: displays power status and operation mode.  ③ 6 pin Power Input Receptacle: supplies power to the camera.  ④ 4 pin Control Receptacle: inputs external trigger signal and outputs strobe.
7.2 Camera Link Connector
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Figure 7.1 VH Camera Link Series Back Panel
Figure 7.2 Camera Link Connector
VH Camera Link series
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
Camera Link connector complies with Camera Link Standard and the following list shows the pin configuration of the connector.
Page 26 of 82 RA14-132-001
Table 7.1 Pin Assignments for Camera Link Base Configuration
VH Camera Link series
Pin Number
Signal
Type
Description
1, 2, 3
+ 12V DC
Input
DC Power Input
4, 5, 6
DC Ground
Input
DC Ground
Make sure the power is turned off before connecting the power cord to the camera.
Otherwise, damage to the camera may result.
If the camera input voltage is greater than specified in the specifications, damage to the
camera may result.
1
2
3 4
5
6
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:
Figure 7.3 Pin Assignments for Power Input Receptacle
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
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VH Camera Link series
Pin Number
Signal
Type
Description
1
Trigger Input +
Input
-
2
Trigger Input -
Input
-
3
DC Ground
-
DC Ground
4
Programmable Output
(Default: Strobe Out)
Output
3.3 V TTL Output
Output resistance : 47 Ω
1 2
4 3
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 port. The pin assignments and configurations are as follows:
Figure 7.4 Pin Assignments for Control I/O Receptacle
The mating connector is a Hirose 4 pin plug (part # HR10A-7P-4P) or the equivalent connectors.
Page 28 of 82 RA14-132-001
Table 7.3 Pin Configurations for Control I/O Receptacle
VH Camera Link series
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 O
Strobe Out
TTL Driver
1
2
3
4
HR10A-7R-4SB
Camera
USER
( Output Current : ? 12 mA )
3.3V TTL Driver IC (NC7S14)
7.5 Trigger Input Circuit
The 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.
7.6 Strobe Output Circuit
The strobe output signal comes out through a 3.3 V output level of TTL Driver IC. The pulse width of signal is synchronized with the exposure signal (shutter) of the camera.
Page 29 of 82 RA14-132-001
Figure 7.5 Trigger Input Schematic
Figure 7.6 Strobe Output Schematic
VH Camera Link series
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.
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)
8 Camera Features
8.1 Area of Interest
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 figure below. Start point and End point mean the starting and end of the AOI. The narrower Vertical AOI is designated, the faster the frame speed will be. However Horizontal AOI does not affect the frame speed. For more information about AOI parameter settings, see “sha” and “sva” command on
Command List.
Figure 8.1 Area of Interest
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VH Camera Link series
VH CL Series
VH-310C
VH-2MC
VH-4MC
VH-11MC
VH-16MC
T
VCCD
35.3 ㎲
97.0 ㎲
139.6 ㎲
190.0 ㎲
242 ㎲
TL (1 channel)
14.2 ㎲
36.4 ㎲
45.8 ㎲
106.8 ㎲
135.0 ㎲
TL (2 channel)
7.8 ㎲
19.6 ㎲
19.6 ㎲
55.9 ㎲
73.0 ㎲
TFD
0.6 ㎲
3.6 ㎲
3.6 ㎲
6.0 ㎲
16.0 ㎲
V
SIZE
480 Lines
1200 Lines
2048 Lines
2672 Lines
3248 Lines
Minimum Vertical ROI
60 Lines
150 Lines
256 Lines
334 Lines
406 Lines
The approximate maximum frame rate depending on the change of Vertical AOI can be obtained as shown in the following expression.
1 or 2 Channel Mode:
Frame Rate (fps)
=
1000000
/
{T
VCCD
+ TFD ×
(V
SIZE
– V
AOI
) + V
× TL]
AOI
T
: the amount of time required to transmit electric charges accumulated on
VCCD
the pixels to Vertical Register
TFD : the amount of time required for Fast Dump
V
: the number of Vertical Line of CCD
SIZE
TL : the amount of time required for transmission of one line
V
: size of the Vertical AOI
AOI
The available minimum value of T
VCCD
, TFD, V
, TL and V
SIZE
may vary depending on the camera model. The
AOI
value of TL may vary depending on the channel mode. The values of each item are shown below.
Page 31 of 82 RA14-132-001
Table 8.1 Timing Value for VH Camera Link Series
VH Camera Link series
The following figure shows frame rate for each camera model depending on Vertical AOI changes with 1 Tap and 2 Tap settings.
Figure 8.2 Frame Rate by Vertical AOI changes
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VH Camera Link series
Even if the binning is performed on the color camera, the resulting image will be monochrome.
8.2 Binning
Binning has the effects of increasing the level value and decreasing resolution by summing 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 ratio imaging. 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 the frame speed. Binning Factor is set using “sbf” command.
Figure 8.3 2 × 2 Binning
Figure 8.4 4 × 4 Binning
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VH Camera Link series
VCCD
SHUTTER
EXPOSURE
FVAL
READOUT
STROBE
Image NImage N-1
Exposure for
Image N
Exposure for
Image N+1
Exposure for
Image N-1
8.3 Trigger
8.3.1 Trigger Input
Trigger mode of the camera is divided into Trigger synchronous mode and Trigger asynchronous mode (hereinafter “Free-Run mode”) depending on its synchronization with trigger input. Trigger synchronous mode is divided into Standard mode, Double Exposure mode, Fast mode, Overlap mode, depending on concrete operation type. It is required to set the trigger first to operate the camera in Trigger synchronous mode. In concrete, it is required to select which one of CC1 port and TRIGGER_IN port should be used as trigger input and to set whether polarity of trigger should be Positive or Negative.
8.3.1.1 Free-Run Mode
Free-Run Mode repeats Readout depending on parameter value set in the camera currently, regardless of trigger input.
Figure 8.5 Free-Run Mode
As shown in the above figure, Readout section overlaps with exposure section of next image in Free-Run Mode. At this time, the camera operation slightly differs depending on length of Exposure Time and Readout Time. If Exposure Time is shorter than Readout, Shutter signal occurs during readout, and when Readout finishes, Readout of next image starts (Figure 8.6). In this case, the frame speed is constant regardless of change in Exposure Time. But if Exposure Time is set longer than Readout Time, Shutter signal occurs together with start of Readout and Readout of next image does not start until Exposure Time set elapses even if Readout finishes (Figure 8.7). In this case, the frame speed gets lower as the setting value of Exposure Time increases.
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VH Camera Link series
Standard Frame Time
Exposure Time
VCCD
SHUTTER
READOUT
Readout Time
DATA
Standard Frame Time
Frame Time ≈ Exposure Time
VCCD
SHUTTER
READOUT
Readout Time
DATA
Figure 8.6 Exposure Time is Shorter than Readout Time
Figure 8.7 Exposure Time is longer than Readout Time
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VH Camera Link series
TRIGGER
SHUTTER
EXPOSURE
VCCD
FVAL
READOUT
STROBE
DATA
8.3.1.2 Standard Mode
In Standard Mode, the camera is in a waiting for trigger acquisition status until trigger signal is supplied. When a trigger signal is received by the camera, Readout will start after performing Exposure process according to the setting. After Readout is completed, the camera operates in various ways depending on the Frame Number setting. The Frame Number can be set as the value between 0 and 255. If it is set to 0, the camera will be operated in the Free-Run mode instead of returning to the waiting for trigger acquisition status. If it is set to 1, the camera will return to the waiting for trigger acquisition status. If it is set to the value between 2 and 255, the camera will repeat Readout in the Free-Run mode as many as the number less than 1 from the number set, and return to the waiting for trigger acquisition status again. “sfn” command is used to set Frame Number.
Figure 8.8 Standard Trigger Mode
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VH Camera Link series
TRIGGER
SHUTTER
VCCD
FVAL
READOUT
STROBE
EXPOSURE
Exposur for
Image 1
Exposure for
Image 2
Image 1 Image 2
8.3.1.3 Double Exposure
In the Double Exposure mode, two images are acquired with one trigger signal. When a trigger signal is supplied, the camera starts Readout after performing Exposure process according to the setting as in the Standard mode. At this time, exposure for the second image starts with Readout for the first image. When Readout for the first image is completed, the camera performs the second Readout. Since it does not generate shutter signal during Readout for the first image, the interval between completion of first exposure and start of second exposure is as short as a few microseconds or dozens of microseconds.
Figure 8.9 Double Exposure Trigger Mode
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VH Camera Link series
TRIGGER
EXPOSURE
Exposure N Exposure N+1 Exposure N+2
SHUTTER
READOUT
STROBE
VCCD
Image N-1 Image N Image N+1
8.3.1.4 Fast Mode
The Fast mode is more useful than the Standard mode when interval of trigger input is relatively fast and continuous. The difference with the Standard mode is that the Readout immediately starts after a trigger signal is supplied while the Readout starts after performing exposure according to the exposure time setting in the Standard mode. And the interval between trigger signals is equal to the exposure time for the images since it does not generate shutter signal during Readout.
Figure 8.10 Fast Trigger Mode
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VH Camera Link series
VH-310C
VH-2MC
VH-4MC
VH-11MC
VH-16MC
3.8 ㎳
23.8 ㎳
49.7 ㎳
149.9 ㎳
250 ㎳
8.3.1.5 Overlap Mode
In the Overlap mode, the camera remains waiting for trigger acquisition status until a trigger signal is supplied as in the Standard Mode. When a trigger signal is supplied, the Readout starts after performing exposure process according to the exposure time setting. When new trigger signal is supplied to the camera during the Readout process for the first image, the camera will continue to perform the Readout process while performing the exposure process for the new trigger signal. However, if the exposure time is longer than the interval of trigger input and the trigger signal is supplied during the Exposure process, the trigger signal will be ignored. To acquire the image with the maximum frame, the exposure time should not be longer than the readout time and the interval of trigger input should not be shorter than the readout time. The readout time for each model is as follows:
Table 8.2 Readout Time for Each Model
In addition, the interval of trigger signal or the exposure time must be kept constant to operate the camera in the overlap mode ideally.
Figure 8.11 Overlap Trigger Mode
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VH Camera Link series
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
Two Taps
Right Dark Columns
Top Dark Rows
Bottom Buffer Rows
Top Buffer Rows
Left Buffer Columns
Right Buffer Columns
One Tap
Video L Video R
Left Dummy Pixels
Rigth Dummy Pixels
Horizontal Register
Bottom Dark Rows
(1, 1)
8.4 Channel Mode
Accumulated charges are read out of the sensor when exposure ends. The sensor can be read out in one tap (single channel) or two tap (dual channel). In case of one tap output, all pixel values in the Horizontal Register are shifted towards the left bottom Video Amplifier (Video L). In case of two tap output, pixel values from left to the center of the Horizontal Register are shifted towards the Video L, and pixel values from the right are shifted towards the Video R. The advantage of two tap output is that it makes readout about two times faster than one tap output.
Figure 8.12 Channel Mode
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VH Camera Link series
CCD
Sensor
AFE1
AFE2
Processing
&
Reorder
CameraLink
Interface
A
B
Video R
Video L
A
A AB B
Single Channel
Output
Dual Channel
Output
The camera processes and rearranges the image data in order to be compliant with the base Camera Link Standard. In single channel, image data is read out line-by-line from the upper left corner until the last pixel in the lower right corner is read out in the Camera Link A 1 Tap fashion. In dual channel, image data is read out of Video L and R simultaneously in the Camera Link A, B 2 Tap interleaved fashion.
Figure 8.13 Image Data Flow
Figure 8.14 Data Output
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VH Camera Link series
0
6
12
18
24
30
36
0
100
200
300
400
500
600
700
800
Gain(dB)
Gain Curve
Register Value
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 a 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㏈)
The available range of offset values is 0 ~ 255 (LSB).
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Figure 8.15 Register Setting for Gain Value
VH Camera Link series
12-bit Data
4096 entry
Lookup Table
12-bit Data
LUT
0
500
1000
1500
2000
2500
3000
3500
4000
0 500 1000 1500 2000 2500 3000 3500 4000
Input Level
Output Level
8.6 LUT
LUT (Lookup Table) converts original image values to certain level values. 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 between 0~4095 and VH Camera Link camera provides 2 non-volatile spaces for LUT data storage. You can determine whether to apply LUT and which LUT to use using “sls” command. For more information about how to download LUT to the camera, refer to Appendix B.
Figure 8.16 LUT Block
Figure 8.17 LUT at Gamma 0.5
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VH Camera Link series
L3 L2 L1 R1 R2 R3
<Current Pixel>
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
8.7 Defective Pixel Correction
The CCD may have Defect Pixels which cannot properly react to the light. 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 in the factory. 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 for a defect pixel is calculated based on valid pixel value adjacent in the same line.
Figure 8.18 Location of Defect Pixel to be corrected
If current pixel is a defect pixel as shown in the above figure, correction value for this pixel is obtained as shown in the following table depending on whether surrounding pixel is defect pixel or not.
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Table 8.3 Calculation of Defect Pixel Correction Value
VH Camera Link series
1. Activating 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 completed, the original settings of the camera will be restored.
Readout Mode : Normal  Trigger Mode : Free-Run  Channel Mode : Single  Defective Pixel Correction : ON
2. The offset value M is based on the Normal Readout mode. According to the AOI mode, Binning mode, or Dual Channel mode, the offset value of an actual image is expressed differently.
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)
Where,
IC : Level value of corrected image;
IR : Level value of original image;
IB : Black offset value;
M : Average value of image after correction;
IF : Level value of Flat Field data.
In order to use the Flat Field Correction function, one must first generate IF, the Flat Field data. This can be done by adjusting the camera to the actual environment and activating the Flat Field Generator. The Flat Field Generator will standardize a series of images, curtailing the image to 1/16 pixel, generate the curtailed Flat Field data, and store it in the external frame buffer. When curtailed images are used for corrections, it is expanded and applied with a Bilinear Interpolation as shown in Figure 8.20. When the Flat Field data is generated, use the “sfo” command to set the M value, and use the “sfc” command to apply the Flat Field Correction. At this time, the Flat Field data is stored on the RAM, a volatile memory. In order to reuse the stored data, the “sdf” command must be used to store them on the FLASH, a non-volatile memory.
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VH Camera Link series
1/64 Scale Down
External
SRAM
Bilinear
Interpolated
Magnification
External
SRAM
IR*M/IF
<IR>
<IF>
<IC>
<Flat Fielding Block Diagram>
<Flat Field Calibration Block Diagram>
16 Pixel
16 Pixel
copycopycopycopy
copy
copy
Scale-Down Data
Magnified Image
Boundary
Magnified Image
Boundary
Figure 8.19 Generation and Application of Flat Field Data
Figure 8.20 Bilinear Interpolated Magnification
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VH Camera Link series
D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
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
8.9 Temperature Monitor
A sensor chip is embedded in the camera to monitor the internal temperature. “gct” command is used to check the temperature of camera.
8.10 Status LED
A green LED is installed on the back panel of the camera to inform the operation status of the camera. LED status and corresponding camera status are as follows:
Continuous ON: operates in the Free-Run mode.  Repeat On for 0.5 seconds, Off for 0.5 seconds: operates in the Trigger mode.  Repeat On for 1 second, Off for 1 second: outputs Test Image.  Repeat On for 0.25 seconds, Off for 0.25 seconds: operates in the Trigger mode and outputs Test Image.
8.11 Data Format
The internal processing of image data is performed in 12 bits. Then, the camera can output the data in 8, 10 or 12 bits. When the camera outputs the image data in 8 bits or 10 bits, the 4 or 2 least significant bits will be truncated accordingly.
Figure 8.21 Data Format
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8.12 Test Image
To check whether the camera operates normally or not, it can be set to output test images generated in the camera, instead of the image data from the CCD. Three types of test images are available; 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).
Figure 8.22 Test Image 1
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The test image may look different because the region of the test image may vary depending on the camera’s resolution.
Figure 8.23 Test Image 2
Figure 8.24 Test Image 3
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8.13 Horizontal Flip
The Horizontal Flip feature let you flip the image horizontally. This feature is available in all operation modes and “shf” command is used to set whether to use this feature or not.
Figure 8.25 Original Image
Figure 8.26 Horizontally Flipped Image
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VH Camera Link series
Data Format
Original Value
Inverted Level Value
8 0 255
10
0
1023
12
0
4095
8.14 Image Invert
The Image Invert feature let you invert the level values of the output image. The inverted level values differ depending on output data format even if input value is same. This feature is available in all operation modes and “sii” command is used to set whether to use this feature or not.
Table 8.4 Inverted Level Value by Data Format
Figure 8.27 Original Image
Figure 8.28 Inverted Image
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VH Camera Link series
FVAL
SHUTTER
EXPOSURE
STROBE
VCCD
Offset
SHUTTER
FVAL
STROBE
TRIGGER
(CC1 or EXT)
EXPOSURE
Offset
8.15 Strobe
The strobe signal is used to synchronize the external light source with the camera or to measure the current exposure time of the camera. The pulse width of the strobe signal is determined by the duration from the point where the shutter signal is generated until the point where the readout process begins. It is equivalent to the exposure time of the camera.
8.15.1 Strobe Offset
The strobe offset value indicates when the strobe signal is to be sent after the shutter signal is generated. The value can be set in the unit of 1 ㎲ using “sso” command. Then, the location of the pulse will be changed
accordingly without changes in the pulse width of the strobe signal.
Figure 8.29 Strobe Signal in the Free-Run mode
Figure 8.30 Strobe Signal in the Trigger mode
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8.15.2 Strobe Polarity
You can select the polarity of the strobe signal. “ssp” command is used to set the polarity of the strobe signal.
8.15.3 Field Upgrade
The VH Camera Link camera provides a feature to upgrade the firmware and FPGA logic through the camera link interface rather than disassemble the camera in the field. For more information about how to upgrade, refer to Appendix C.
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VH Camera Link series
9 Camera Configuration
9.1 Setup Command
You can configure all required settings of the camera through RS-644 serial interface of the camera link. When you want to control the camera using a terminal or access to the camera at your application, you need to set your network as follows.
Baud Rate : 19200 bps  Data Bit : 8 bit  Parity Bit : No Parity  Stop bit : 1 stop bit  Flow control : None
All types of the camera setting commands are delivered in ASCII command type except Firmware Download requiring massive data transmission. All camera setting commands start from user application and the camera returns the response (“OK”, “Error” or information) for a command. The camera informs the completion of the command execution through response for a write command while the camera returns the error response or information for a read command.
Command format:
<command> <parameter1> <parameter2> <cr>
0~2 parameters follow the command.
Response:
- If execution of write command is successfully completed
OK <cr> <lf>
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<cr>
Response : 73 65 74 20 31 30 30 0D 0A 4F 4B 0D 0A 3E
set 100<cr><lf> OK<cr><lf> >
Echo result prompt
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If execution of read command is successfully completed
<parameter1> <cr> <lf>
Ex) Read command
In response to a “get” command the camera will return (in hex value)
Command : 67 65 74 0D
get <cr>
Response : 67 65 74 0D 0A 31 30 30 0D 0A 3E
get<cr><lf> 100<cr><lf> >
Echo response prompt
If execution of command is not completed
Error : <Error Code> <cr> <lf>
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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VH Camera Link series
Exposure
Command
VCCD
Image N
READOUT
Image N+1
Command Recognized (Ack ”OK”)
Command Executed
Command Applied
Exposure Time Setting Applied
Command Recognized (Ack ”OK”)
“set” Command Executed
Exposure N
Exposure
N+1
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.
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Figure 9.1 Actual Time Applied for Commands
VH Camera Link series
Volatile
Memory
(RAM)
Non_volatile
Memory
(ROM)
Work Space
User 1 Space
User 2 Space
Factory Space
9.3 Parameter Storage Space
The camera has three non-volatile storage spaces used for parameter storage and one volatile work space that is applied to actual camera operation. Three storage spaces are divided into Factory Space that contain basic value at the factory, and two 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. When the camera is powered on or reset, setting values stored in one of the storage spaces are loaded into the work space according to the Config Initialization setting and these values will be used for the camera settings. Since values in the work space are valid only while the power is on, they should be copied to user space 1 or user space 2 using “sct” command.
Figure 9.2 Parameter Storage Space
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VH Camera Link series
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 Flat-Field Correction Get Flat-Field Correction
sfc 0|1 gfc
OK 0|1
0: Off 1: Active of Flat-Field Correction
Set Defect Correction Get Defect Correction
sdc 0|1 gdc
OK 0|1
0: Off 1: Active of Defect Correction
Set Image Invert Get Image Invert
sii 0|1 gii
OK 0|1
0: Off 1: Active of Image Invert
9.4 Command List
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Table 9.1 Command List #1
VH Camera Link series
Command
Syntax
Value
Returned
Description
Set Horizontal Flip Get Horizontal Flip
shf 0|1 ghf
OK 0|1
0: Off 1: Active of Horizontal Flip
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 Asynchronous Reset Get Asynchronous Reset
sar 0|1 gar
OK 0|1
0: Inactivate Asynchronous Reset 1: Activate Asynchronous Reset
Set Exposure Time Get Exposure Time
set n get
OK n
n: Exposure Time in ㎲ (Setting range: 10 ~ 7,000,000 ㎲)
Set Channel Mode Get Channel Mode
scm 1|2 gcm
OK 1|2
1: 1 channel mode 2: 2 channel mode
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 n ggo 2
OK n
2: AFE Channel for the right Image n: Analog Gain Offset parameter (Setting range: -20 ~ +20)
Set Analog Offset Get Analog Offset
sao n gao
OK n n: Analog Offset parameter (Setting range: 0 ~ 255)
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Table 9.2 Command List #2
VH Camera Link series
Command
Syntax
Value
Returned
Description
Set Offset Offset Get Offset Offset
soo 2 n goo 2 n
OK n
2: AFE Channel for the right 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)
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 FPGA Version
gfv
String
Display FPGA version
Get Serial Number
gsn piece
String
Display Serial Number
Get Current Temperature
gct
String
Display Temperature value
Set Pclk Selection Get Pclk Selection
sps 0|1 gps
OK 0|1
0: Normal Speed 1: High Speed (Only available on VH-11MC/16MC)
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Table 9.3 Command List #3
VH Camera Link series
10 Configurator GUI
Configurator, a sample application, is provided to control VH Camera Link series cameras. Configurator provides easy-to-use Graphic User Interface (GUI) for the user while using the commands mentioned in the previous chapters.
10.1 Camera Scan
When you execute the program while the camera is turned on, a Camera Scan window appears as shown in the figure below. At this time, the program checks serial port of your computer and DLL provided by the 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 cables and power of the camera, and press the refresh button. When you double-click a model name displayed on the screen, Configurator is executed and displays current setting value of the 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 or FPGA logic.  Exit: Exits Configurator.
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10.2.2 Start-Up
You 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 User 1 Space.  User2 Setting: Loads the camera setting values from User 2 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 with a 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: Select High Speed to operate the camera in the High Speed mode. To operate the
camera in the Normal Speed mode, deselect the High Speed (Supported only on VH-11MC and VH-16MC).
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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 you 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 bit depth 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, Image Invert or Horizontal
Flip features On or Off.
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10.3.2 MODE/EXP Tab
MODE/EXP tab allows you 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 the strobe output signal.
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10.3.3 ANALOG Tab
ANALOG tab allows you 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. Checking the Tab Link checkbox will adjust setting
values of two channels synchronously.
Analog Offset: Sets off set values of each channel. Checking the Tab Link checkbox will adjust
setting values of two channels synchronously.
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10.3.4 LUT Tab
LUT tab allows you to download LUT data. For more information about LUT download, refer to Appendix B.
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 the 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 you 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 (Save to Flash)
or loads the saved FF data (Load from Flash).
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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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.  Check the aperture is opened properly.  Check the Gain value is not set to small.
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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