CoaxPress VN Series User manual

VN CXP series
Page 2 of 75 VW40-152-017
Revision History
Version
Date
Description
1.0
2015-02-12
Initial Release
1.1
2015-05-14
Corrected errors on the mechanical dimension
1.2
2016-04-22
Added typical power requirements
1.3
2017-03-24
Updated the EMC Directive

VN CXP series
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Contents
1Precautions .......................................................................................................................6
2Warranty ............................................................................................................................7
3Compliance & Certifications............................................................................................7
3.1 FCC Compliance................................................................................................................7
3.2 CE: DoC.............................................................................................................................7
3.3 KC......................................................................................................................................7
4Package Components ......................................................................................................8
5Product Specifications...................................................................................................10
5.1 Overview..........................................................................................................................10
5.2 Specifications...................................................................................................................11
5.3 Camera Block Diagram....................................................................................................12
5.4 Sensor Information...........................................................................................................13
5.5 Mechanical Specification..................................................................................................14
6Installation.......................................................................................................................15
6.1 Mount Plate......................................................................................................................16
6.2 Precaution to Center the Imaging Sensor........................................................................17
6.3 Precaution about Blurring Compared to Center...............................................................17
6.4 Installing Vieworks Imaging Solution................................................................................17
7Camera Interface.............................................................................................................18
7.1 General Description .........................................................................................................18
7.2 CoaXPress Connector .....................................................................................................19
7.2.1 CoaXPress DIN Connector (75 Ω 1.0/2.3 DIN Receptacle)............................................................19
7.3 Power Input Receptacle...................................................................................................20
7.4Control I/O Receptacle.....................................................................................................21
7.5 Trigger Input Circuit..........................................................................................................22
7.6 Strobe Output Circuit........................................................................................................22
8Acquisition Control.........................................................................................................23
8.1 Overview..........................................................................................................................23
8.2 Acquisition Start/Stop Commands and Acquisition Mode ................................................26
8.3 Exposure Start Trigger.....................................................................................................27
8.3.1 Trigger Mode ...................................................................................................................................27
8.3.2 Using a Software Trigger Signal......................................................................................................29
8.3.3 Using a CoaXPress Trigger Signal..................................................................................................30
8.3.4 Using an External Trigger Signal.....................................................................................................31

VN CXP series
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8.4 Setting the Exposure Time...............................................................................................34
8.5 Overlapping Exposure with Sensor Readout...................................................................35
8.6 Electronic Shutter Operation............................................................................................37
8.6.1 Global Shutter..................................................................................................................................37
8.7 Maximum Allowed Frame Rate ........................................................................................38
8.7.1 Increasing the MaximumAllowed Frame Rate................................................................................38
9Camera Features.............................................................................................................39
9.1 Image Region of Interest..................................................................................................39
9.2 CXP Link Configuration....................................................................................................42
9.3 Pixel Format.....................................................................................................................43
9.4 Data ROI (Color Camera) ................................................................................................44
9.5 White Balance (Color Camera) ........................................................................................45
9.5.1 Balance White Auto .........................................................................................................................45
9.6 Gain and Black Level.......................................................................................................46
9.7 Defective Pixel Correction................................................................................................47
9.7.1 Correction Method...........................................................................................................................47
9.8 Flat Field Correction.........................................................................................................48
9.9Pixel Shifting ....................................................................................................................51
9.9.1 Pixel Shifting and True Color Resolution.........................................................................................52
9.9.2 Sequence Mode ..............................................................................................................................54
9.10 Temperature Monitor........................................................................................................60
9.11 Status LED.......................................................................................................................60
9.12 Test Pattern......................................................................................................................61
9.13 Digital IO Control..............................................................................................................63
9.14 Fan Control ......................................................................................................................65
9.15 Device User ID.................................................................................................................65
9.16 Device Reset....................................................................................................................65
9.17 User Set Control...............................................................................................................66
9.18 Field Upgrade...................................................................................................................66

VN CXP series
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10 Troubleshooting..............................................................................................................67
Appendix A Defective Pixel Map Download...................................................................68
Appendix B Field Upgrade...............................................................................................70
B.1 MCU.................................................................................................................................70
B.2 FPGA ...............................................................................................................................72
B.3 XML..................................................................................................................................73
Appendix C Position settings according to sequence modes.....................................74

VN CXP 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
temperatures.
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.

VN CXP series
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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 (ClassA), EN 55024:2010
Class A
3.3 KC
KCC Statement
Type
Description
Class A
(Broadcasting Communication
Device for Office Use)
This device obtained EMC registration for office use (ClassA), and may be
used in places other than home. Sellers and/or users need to take note of
this.

VN CXP series
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4 Package Components
Package Components
Mount Plate (Optional)

VN CXP series
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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.

VN CXP series
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5 Product Specifications
5.1 Overview
VN CXP Series is a high speed industrial area scan camera equipped with the latest CMOS image sensor. It
features 25 megapixel resolutions with frame rate up to 72 fps. This is the first CMOS pixel shifting camera
whose resolution is extended from 25 megapixels up to 235 megapixels through vieworks’iconic pixel shifting
technology. With the VN-25MX, customers in the industrial market can take advantage of 235 million pixels
resolution at 8 fps. Its CoaXPress interface supports transmitting image data at up to 6.25 Gbps using a single
coaxial cable and up to 25 Gbps using four cables. Featured with high speed and high resolution, this new
technology is ideal for inspection systems such as FPD, PCB and semiconductor as well as 3D imaging and
digitizing of different objects.
Main Features
Nano Stage Pixel Shifting Mechanism
High Speed 25 Megapixel CMOS Imaging Sensor
Extended Resolution up to 235 MP at 8 fps (9 Shot Mode)
Electronic Exposure Time Control (Global Shutter)
Output Pixel Format - 8 / 10 bit
Strobe Output
Output Channel - CXP6 2ch / CXP6 4ch
CoaXPress Interface up to 72 fps at 25 Gbps using 4 coax cables (4ch)
Gain/Black Level Control
Test Pattern
Temperature Monitor
Field Upgrade
Image Correction
Flat Field Correction
Defective Pixel Correction
Fan Control
VN CXP Series Feature Bar

VN CXP series
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5.2 Specifications
Technical Specifications for VN CXP series are as follows:
VN CXP Series
VN-25MX-72
Active Image (H ×V)
5120 ×5120
Sensor Type
On Semiconductor VITA-25K
Pixel Size
4.5 ㎛×4.5 ㎛
Optical Size (Diagonal)
35 ㎜(32.58 ㎜)
Output
Format
Mono
Mono 8, Mono 10
Color
Bayer 8, Bayer 10
Camera Interface
CoaXPress
Electronic Shutter
Global Shutter
Max. Frame Rate
25 MP
2 CH: 36 fps 4 CH: 72 fps at 6.25 Gbps
235 MP
2 CH: 4 fps 4 CH: 8 fps at 6.25 Gbps
Dynamic Range
< 54 ㏈
Shutter Speed (1 ㎲step)
10 ㎲~ 60 s
Partial Scan (Max. Speed)
7692 fps at 4 Lines (H: 256)
Black Level Control
0 ~ 16 LSB at 8 bit, 0 ~ 64 LSB at 10 bit (1 LSB step)
Gain Control
×1 ~ ×4 (0~ 12 ㏈)
Exposure Mode
Free Run, Timed, Trigger Width
External Trigger
3.3 V ~ 24.0 V, 10 ㎃, Logical Level Input, optically isolated
CoaXPress Control Port
Software Trigger
Asynchronous, Programmable via Camera API
Shift Range
0 ~ 7.5 ㎛, 1 ㎚step
Shift Resolution
0.001 ㎛
Shift Control
Sequence Mode (mono4, mono9, mono2H, mono2V, bayer4, bayer16)
Lens Mount
F-mount
Power
Adapter
11 ~ 30 V DC, Typ. 13 W
PoCXP
24 V DC, Minimum of two PoCXP cables required
Environmental
Operating: 0℃~ 40℃, Storage : -40℃~ 70℃
Mechanical
80×80×150 ㎜1100 g (with F-mount)
API SDK
Vieworks Imaging Solution 7.X
Table 5.1 Specifications of VN CXP Series

VN CXP series
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5.3 Camera Block Diagram
Figure 5.1 Camera Block Diagram
All controls and data processing of the camera are carried out in one FPGAchip. 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 CoaXPress interface and then processes them. The Processing & Control Logic processes
the image data received from the CMOS sensor and then transmits data through the CoaXPress interface.And
also, the Processing & Control Logic controls the trigger input and strobe output signals which are sensitive to
time. Furthermore, a DDR3 to process images and a Flash for operating Micro-Controller are installed outside
FPGA. And, PZT Driver is applied to control XY Stage with nanometers unit.

VN CXP series
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5.4 Sensor Information
The following graph shows the spectral response for VN-25MX monochrome and color camera.
Figure 5.2 Mono and Color Spectral Response for VN-25MX

VN CXP series
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5.5 Mechanical Specification
The camera dimensions in millimeters are shown in the following figure.
Figure 5.3 Mechanical Dimensions for VN-CXP F -mount with DIN 1.0/2.3-type Connectors

VN CXP series
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6 Installation
The following instructions assume that you have installed a CoaXPress Frame Grabber (hereinafter ‘CXP Frame
Grabber’) in your computer including related software. Procedures below also assume that you may attempt to
configure a link between a camera and CXP Frame Grabber by using four coax cables. For more detailed
information, refer to your CXP Frame Grabber User Manual.
To connect the camera to your computer, follow the steps below:
1. Make sure that the power supply is not connected to the camera and your computer is turned off.
Go on to step 2 if you are using a power supply.
Go on to step 3 if you are using a Power over CoaXPress (PoCXP) Frame Grabber.
2. If you are using a power supply:
a. Plug one end of a coax cable into the CH1 of the CXP connector on the camera and the other end of the
coax cable into the CH1 of the CXP Frame Grabber in your computer. Then, plug one ends of the other
three coax cables into CH2, CH3 and CH4 of the CXP connector on the camera and the other ends of
the coax cables into the CH2, CH3 and CH4 of the CXP Frame Grabber respectively.
b. Connect the plug of the power adapter to the 6-pin power input receptacle on the camera.
c. Plug the power adapter into a working electrical outlet.
3. If you are using PoCXP Frame Grabber:
a. Plug one end of a coax cable into the CH1 of the CXP connector on the camera and the other end of the
coax cable into the CH1 of the CXP Frame Grabber in your computer. Then, plug one ends of the other
three coax cables into CH2, CH3, and CH4 of the CXP connector on the camera and the other ends of
the coax cables into the CH2, CH3 and CH4 of the CXP Frame Grabber respectively.
b. You must connect both CH1 and CH2 channels to power the camera via PoCXP.
4. Verify all the cable connections are secure.
Precautions for using Power over CoaXPress
Since VN-25MX supports only two and four channels, you must use two or more coax
cables to configure a link between a camera and CXP Frame Grabber. At this time, you
must connect the CH1 of the CXP connector on the camera to the CH1 of the CXP Frame
Grabber.
To power a camera via PoCXP Frame Grabber, you must connect both CH1 and CH2
channels of the camera to their respective connectors on the CXP Frame Grabber.

VN CXP series
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6.1 Mount Plate
The mount plate is provided as an optional item.
The camera can be fixed without using this mount plate.

VN CXP series
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6.2 Precaution to Center the Imaging Sensor
Users do not need to center the imaging sensor as it is adjusted as factory default settings.
When you need to adjust the center of the imaging 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 Vieworks Imaging Solution
You can download the Vieworks Imaging Solution at http://www.vieworks.com. You should perform the software
installation first and then the hardware installation.

VN CXP series
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7 Camera Interface
7.1 General Description
As shown in the figure below, 3 types of connectors and a status indicator LED are located on the back of the
camera and have the functions as follows:
①Status LED: displays power status and operation mode.
②6 pin power input receptacle: supplies power to the camera (if PoCXP is not used).
③4 pin control receptacle: provides access to the camera’s I/O lines.
④CoaXPress connector: controls video data and the camera.
Figure 7.1 VN CXP with DIN 1.0/2.3-type Connectors
①
②
③
④

VN CXP series
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7.2 CoaXPress Connector
CoaXPress protocol includes an automatic link detection mechanism (Plug and Play) to correctly detect the
camera to the CXP Frame Grabber connection. The connection between the camera and CXP Frame Grabber
uses a coax (also known as ‘coaxial’) cable and provides up to 6.25 Gbps bit rate per cable. VN-25MX cameras
can be powered over the coax cable if you are using a PoCXP enabled Frame Grabber.
7.2.1 CoaXPress DIN Connector (75 Ω1.0/2.3 DIN Receptacle)
Figure 7.2 CoaXPress DIN 1.0/2.3-type Connectors
The CoaXPress connector on the VN CXP camera complies with the CoaXPress standard and the following
table shows the channel assignments.
Channel
Max. Bit Rate per Coax
Type
PoCXP Compliant
CH1
6.25 Gbps
Master Connection
Yes
CH2
6.25 Gbps
Extension Connection
Yes
CH3
6.25 Gbps
Extension Connection
No
CH4
6.25 Gbps
Extension Connection
No
Table 7.1 Channel Assignments for CoaXPress Connector
When you connect a camera to a CXP Frame Grabber using coax cables, make sure to
connect the cables to their correct channels. If you connect the CH1 of the CXP connector on
the camera to a channel other than CH1 of the CXP Frame Grabber, the camera may not
transmit images properly or the serial communication between the computer and camera may
fail.

VN CXP series
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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:
Figure 7.3 Pin Assignments for 6-pin Power Input Receptacle
Pin Number
Signal
Type
Description
1, 2, 3
+12V DC
Input
DC Power Input
4, 5, 6
DC Ground
Input
DC Ground
Table 7.2 Pin Arrangements for Power Input Receptacle
The mating connector is a Hirose 6-pin plug (part # HR10A-7P-6S) or the equivalent connectors. The power
adapter is recommended to have at least 2A current output at 12 V DC ±10% voltage output (Users need to
purchase a power adapter 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.
1
23 4 5
6