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SW-2000M-CL-65

7.2.3

LINE CTRL -

Exposure Control

The camera has three exposure control modes: internal, external and mixed, which is a

combined mode of the first two. The start and length of each line, as well as the time that the

light is collected within each line period, follow the same principles regardless of the selected

mode.

The time when the exposure of one line ends and the exposure of the next line starts (change

of line) initiates a procedure that is common to all the modes. That includes stopping the

integration of light – or actually the collecting of the light generated electrons to the selected

Quantum Wells (one per pixel), sampling the respective charge voltages, and starting the

conversions into digital values to represent the amount of light that each pixel collected.

At the same time, the new line period starts and the camera starts to process the data that in

fact originates from the line period that occurred two periods earlier. There is a constant delay

from the end of each scan to the time where the first pixel value comes out of the camera. The

user always gets exactly one line of data for each request of a new line, but due to the internal

delay, it cannot always be the next line after the request.

It is possible to limit the amount of time that light is effectively collected (integration time)

within each scan period by using an electronic shutter function. The integration time always

ends at the same time as the line. The start of the integration time should thus be selected to

match the intended length.

Only two signals or events are needed for these operations. First one is the new line request

and the second one is the signal to start the integration. The source for these events can either

come directly from the input signals of the camera, or from internal timers, or as a

combination of these two.

Command

Description

LINE CTRL ?

Returns the command syntax.

LINE CTRL

Returns the present line control setting.

LINE CTRL EXT

Line rate and integration time are controlled externally by the

host.

LINE CTRL INT

Line rate and integration time are controlled by the camera.

Default setting.

LINE CTRL MIX

Line rate is controlled by externally by the host.

Integration time is controlled internally by the camera.

7.2.3.1

Internal exposure control (command: LINE CTRL INT)

The scan rate is defined either by the LINE RATE or the LINE PERIOD command, which are

inverse of each other. The LINE IT command (LINE Integration Time) sets the length of the

exposure time during each scan. The Line IT must be shorter than the Line Period. The actual

integration takes place in the first part of the line period. If the Line Integration time is

commanded to be longer than the Line Period then the integration time will stop at the same

Содержание SW-2000M-CL-65

Страница 1: ...SW 2000M CL 65 １ SW 2000M CL 65 CMOS High Speed Monochrome Line Scan Camera Document Version 1 1 Date 28 August 2014 File Manual_SW 2000M CL 65_First_Release_1 1 docx User s Manual ...

Страница 2: ...en tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to r...

Страница 3: ...date 16 6 Command line interface 17 6 1 Connecting via Telnet 17 6 2 Connecting via Camera Link Serial Bus 17 6 3 Entering the commands 17 6 4 Command Format 18 7 Description of commands 19 7 1 Group A General settings 21 7 1 1 MODE select camera operating mode 21 7 1 2 NET network settings 21 7 1 3 CL SERIAL sets the baud rate 23 7 1 4 Saving and restoring the capture settings 24 7 2 Group B Comm...

Страница 4: ...37 7 4 6 FIRMWARE UPDATE initiate the MCU update 37 8 Summary of commands 38 9 Software tools for camera communications 41 9 1 JAI SweepConf 41 9 2 JAI Sweep Ethernet Tool 42 9 3 Internal web server 44 10 External dimensions 45 11 Specifications 46 11 1 Operating range 46 11 2 Common properties 47 11 3 Performance per selected sensor mode 47 11 4 Spectral sensitivity 48 12 Change History 49 ...

Страница 5: ...00M CL 65 camera body with F mount x 1 Lens mount sensor protection cap x 1 In the model number of the camera SW stands for Sweep Series 2000 represents the resolution 2000 pixels M stands for monochrome CL stands for Camera Link interface and 65 stands for 65 kHz maximum scan rate 2 Main features CMOS line scan camera Resolution 2048 x 1 Pixel size 20 µm square Selectable Quantum Well size 60k or...

Страница 6: ...r 3 M8 connector for supply voltage 12 to 24 V DC 4 Ethernet connector 5 Lens mount Nikon F Mount 6 Mounting holes all 12 pcs are M5 with depth of 8 mm Note 1 Please do not excessively tighten the Camera Link connector screws by using tools This may damage the receptacle on the camera side It is sufficient to tighten by hand 1 2 4 3 5 6 6 6 6 6 6 6 6 1 ...

Страница 7: ... update or waiting for a firmware update to start Orange steady Initializing Orange flashing rapidly Firmware update in progress Do not disconnect the Ethernet cable Do not switch off the power Red Internal error Ethernet Link LED Green steady Connected to an active network device This indicates the existence of a physical link only It does not indicate a valid TCP IP network configuration Etherne...

Страница 8: ... The connector and respective signalling comply with Base Configuration of AIA Camera Link standard v2 0 Please use only compliant cabling Pin No In Out Name Note 1 14 Shield GND 2 15 O TxOUT0 Data out 3 16 O TxOUT1 4 17 O TxOUT2 5 18 O TxClk Clock for CL 6 19 O TxOUT3 Data out 7 20 I SerTC RxD LVDS Serial Control 8 21 O SerTFG TxD 9 22 I CC1 Trigger Trigger line rate 10 23 I CC2 reserved integrat...

Страница 9: ...A shows the 8 bit value for pixel 3 Port B equals pixel 2 and Port C contains data from the first pixel Respectively the Dual modes effectively send the data out as odd and even numbered pixels two in parallel CL v2 0 specification 8 bit x 1 10 bit x 1 12 bit x 1 8 bit x 2 10 bit x 2 12 bit x 2 8 bit x 3 Mode Base 8 Base 10 Base 12 Base 8 x2 Base 10 x2 Base 12 x2 Base 8 x3 Port Bit 8 bit 10 bit 12...

Страница 10: ...s capacity for 360 ke The larger well should be used whenever feasible as it provides the best image quality due to higher dynamic range and better signal to noise ratio SNR SNR is limited by the shot noise of the light itself and thus it is beneficial to collect as many photons light as possible The smaller well can be used to provide about six times higher response to light but with the cost of ...

Страница 11: ...tory and always in use with fixed settings The scan rate and the integration of light within each line period can be controlled either by the Camera Link input signals CC1 and CC2 internal timers or a combination of these Serial communication channels are used to control and monitor the camera Both the standard Camera Link serial channel as well as the Ethernet connection can be used for the same ...

Страница 12: ...the real imaged lines for purposes like interfacing and problem analysis The patterns replace the image data and can thus be used also to test the following blocks Original full patterns are available after switching off the FFC ROI and binning Test data is also affected by the readout direction selection 5 6 Flat Field Corrector FFC Factory calibrated DSNU corrector minimize pixel specific differ...

Страница 13: ...produce a uniform flat response under the same conditions as where the calibration routine was run A constant value same as DSNU target value is used as the dark reference Bright references are taken by averaging the lines that were imaged from the calibration target 5 7 Region of interest ROI This block can be used to select up to four sections of pixels to be used as one combined line of pixels ...

Страница 14: ...ace The Ethernet interface is provided as an alternative way to communicate with the camera The 10 100 Mbps port provides very fast data transfer rates compared to standard Camera Link speeds which are all less than 1 Mbps Connection to Ethernet offers usual networking possibilities like remote access and connecting multiple cameras together for control and monitoring Standard Camera Link serial c...

Страница 15: ...ompatible web browser and can access the main page http 10 10 10 10 4 Check and make a note of the existing configuration Telnet command VER 5 Save any settings that you want to keep The camera will reboot during the process 6 Initiate the camera by telnet command FIRMWARE UPDATE You may still cancel the operation after this Send command CONFIRM when asked if you want to go ahead 7 The green LED n...

Страница 16: ...eep The camera must be rebooted during the process 6 Access http 10 10 10 10 FPGAupdate html 7 Browse and open the file rbf You may cancel the operation now by closing the web page Click on Upload to proceed Do not interrupt the upload 8 The green LED near the power connector should now turn off 9 Wait for the user interface page to change Then click on the HOME button The LED remains off 10 The c...

Страница 17: ...er Two options are available from JAI Please refer to chapter 9 of this document Also free or commercial Telnet clients can be downloaded from various internet sites The following Telnet clients are examples of clients tested with the Sweep cameras o Foxterm o PuTTY Open a Telnet connection to the IP address of the camera 6 2 Connecting via Camera Link Serial Bus To connect the camera using the Ca...

Страница 18: ...ne or more spaces All commands are case insensitive VER Ver and ver are all equal Example LINE IT time value A command described using this syntax has two alternative forms The first form takes a time as its only parameter while the second form takes the percentage as an optional integration time The following commands are valid examples of this LINE IT 12 according to form LINE IT time LINE IT 10...

Страница 19: ...e actual light integration time LINE CTRL for selecting the trigger source GAIN for setting the camera gain OFFSET for setting the line offset value FFC for Flat Field Correction Group C Commands affecting image output format CL MODE for setting the Camera Link output format CL RATE for setting the pixel clock frequency READOUT for selecting normal or reverse readout direction ROI for selecting Re...

Страница 20: ...s The general principle with all the group B and C commands is that users may experiment with the settings without losing the latest saved and working setup exception CS FACTORY RESET New settings are in use but not permanently saved until the user decides to save them It is always possible to return to the latest saved settings either by sending the CS LOAD or REBOOT command or power cycling the ...

Страница 21: ...ttings Command Description NET Returns the NET settings syntax for manual DHCP IP address Gateway and Subnet Mask NET Returns the present setting of manual DHCP IP Address Subnet Mask and Gateway together with the settings after the next reboot of the camera 7 1 2 1 NET IP set the IP address The command NET IP sets the IP address of the camera Default is 10 10 10 10 Command Description NET IP Retu...

Страница 22: ...GATEWAY syntax NET GATEWAY Please use command NET for settings information NET GATEWAY xxx xxx xxx xxx Sets the address of the default gateway 7 1 2 4 NET FACTORY RESET resetting the net settings The command NET FACTORY RESET sets the net to the factory default values Command Description NET FACTORY RESET Resets the network settings to factory default values 7 1 2 5 NET NAME set a name for the cam...

Страница 23: ...tly if the command was given via Camera Link In that case it is recommended to save the settings before this and to reload them after connecting again with the new speed Command Description CL SERIAL Returns the CL SERIAL command syntax CL SERIAL Returns the present CL SERIAL settings CL SERIAL rate Sets the Camera Link serial communications channel to one of the accepted baud rates of 9600 19200 ...

Страница 24: ...D load settings 1st set This command restores all the above mentioned settings from the first memory location of the non volatile memory Command Description CS List of available Capture Settings group commands CS Returns the present Capture Settings CS SAVE Saves the present Capture Settings to the first memory location Loaded during reboot and power up CS LOAD Loads the stored Capture Settings fr...

Страница 25: ... 5 CS LOAD2 load settings 2nd set This command restores all the above mentioned settings from the second memory location of the non volatile memory 7 1 4 6 CS FACTORY RESET restore settings to factory default This command restores the factory values for all the above mentioned settings from the camera non volatile memory and saves them like the command CS SAVE ...

Страница 26: ...s selected by the LINE CTRL INT command A new setting will be effective even though the camera is in external timing mode The LINE RATE is the inverse of the LINE PERIOD and if one of them is changed then the other will be changed as well The LINE PERIOD command specifies the line interval in microseconds The valid range is from 15 3 to 100000 0 The line period can be changed with the resolution o...

Страница 27: ...that light is effectively collected integration time within each scan period by using an electronic shutter function The integration time always ends at the same time as the line The start of the integration time should thus be selected to match the intended length Only two signals or events are needed for these operations First one is the new line request and the second one is the signal to start...

Страница 28: ...Integration control There are three special cases of CC2 A CC2 constantly low the integration time will always be the minimum possible B CC2 constantly high the integration time will always be the maximum possible C The integration time is from any rising edge of CC2 to the next rising edge of CC1 in all the other cases CC1 CC2 Line interval CC1 CC2 Line interval Integration time C1 B Always 1 CC2...

Страница 29: ...be programmed in advance as an absolute value It is of course important to keep the integration time shorter than the line period If the line period is shorter than the commanded integration time then the integration time will be limited by the line period The use of percentage values for LINE IT command avoids this but then the integration time also varies according to the line trigger input CC1 ...

Страница 30: ...r down In addition to the gain control the Sensor responsivity can be selected to be Dynamic or Responsive giving a factor of 6 in responsivity due to the difference in quantum well size Please note that it is not practical to repeatedly swap the well Instead it is better to select it first and then use only the GAIN command as far as possible Command Description GAIN Returns the command syntax GA...

Страница 31: ...ection add errors to the compensation when activated The procedure is then to establish a scene illumination as uniform as possible and having the intended optics for the application before saving the FFC line graph for the correction A uniform test target is needed It is recommended to calibrate the correction slightly off focal This can be achieved either by changing the viewing distance recomme...

Страница 32: ...the pixel clock frequency within range of 20 to 85 MHz Parameter MIN finds the slowest suitable rate in respect to the current line rate Both are in steps of 5 MHz Command Description CL RATE Returns the CL RATE command syntax CL RATE Returns the present CL RATE setting CL RATE cl_rate Sets the Camera Link clock frequency to cl_rate in MHz Default value is 50 MHz CL RATE MIN Sets the Camera Link c...

Страница 33: ...de by defining the complete set again Region 1 Region 2 Region 3 Region 4 X0 X1 X2 X3 X4 X5 X6 X7 examples 23 88 897 1356 1807 2020 Command Description ROI Returns the ROI command syntax ROI Returns the present ROI setting e g ROI ON X1 X2 X3 X4 X5 X6 ROI X0 X1 Sets the ROI to start at pixel X0 and stop at pixel X1 ROI X0 X1 X2 X3 Sets region 1 to start at pixel X0 and end at pixel X1 and region 2...

Страница 34: ...mming mode and the output is limited to the maximum digital value of the original pixel values The averaging mode sums the two values with no maximum limit and then takes the most significant bits into use to represent the new combined pixel lowest bit is removed The number of first pixel of each pair is always odd Command Description BINNING Returns the BINNING command syntax BINNING Returns the ...

Страница 35: ... line to line direction All values within each line are then equal The last pattern P5 is a combination of these two directions to enable tracking in both domains with a single test pattern It starts exactly like the horizontal pattern P1 but when then advancing to next lines it leaves the darkest pixel values out one by each line This effectively also shortens the length of the horizontal sequenc...

Страница 36: ...f 8 bit output the line graph includes 4 of such periods when advancing across the 2K pixels The respective image should thus look like this TEST P3 Vertical sawtooth rising ramps from 0 to maximum in line to line direction Each line has only one value for all the pixels In case of 8 bit output the ramp from black to white takes 256 lines in the respective image TEST P4 Vertical triangles rising r...

Страница 37: ...nformation on the current status of test modes Note all ramps increase or decrease by one level per pixel or line where the step follows the selected output bit depth of 8 10 or 12 bits When the direction of any ramp changes the last value of previous ramp is repeated once as the first value of the next ramp to keep the lengths of the sequences equal when feasible 7 4 5 REBOOT restart the camera T...

Страница 38: ...NET GATEWAY address xxx xxx xxx xxx only with static address 6 reset net settings NET FACTORY RESET 7 camera name for network NET NAME name new name 8 remove the camera name for network NET NAME DELETE 9 close session NET CLOSE NET QUIT or BYE 10 baud rate for Camera Link serial communications CL SERIAL 9600 19200 38400 57600 or 115200 bps 11 Save capture settings CS SAVE affected commands SENSOR ...

Страница 39: ...s per second from 10 to 65 000 Maximum depends on CL mode and rate ROI and binning 4 Timing source LINE CTRL mode INT internal EXT external MIX external line timing internal integration time 5 Integration time as microseconds LINE IT time 2 00 to 99 998 60 µs Minimum and maximum depend on line rate 6 Integration time as percentage LINE IT time 0 10 to 100 00 7 Gain GAIN gain 0 100 to 32 000 digita...

Страница 40: ...EADOUT Normal or Reverse 4 Set the regions of interest ROI regions Pixel numbers 1 to 4 regions 5 Activate ROI ROI ON 6 Deactivate ROI ROI OFF 7 Pixel binning BINNING mode AVG SUM or OFF D Utilities Command Function Command Format Parameter Remarks 1 Help HELP or list of commands 2 Help on any specific command add a examples GAIN LINE RATE 3 Query of existing setting command with no parameters exa...

Страница 41: ...ltiple telnet sessions at the same time Standard terminal programs can be used for control at command level Default IP address is 10 10 10 10 Telnet Port is number 23 JAI provides two control tools as Windows software as well as web browser access 9 1 JAI SweepConf The SweepConf offers a graphical user interface with sliders and pop down menus for the most common functions as well as a telnet term...

Страница 42: ... JAI Sweep Ethernet Tool The Sweep Ethernet Tool is a telnet terminal program with possibility to run scripts and to display single line graphs average of 32 lines Fig 8 Front page after initialization and the help command ...

Страница 43: ...SW 2000M CL 65 43 Fig 9 Line graph display with no frame grabber Test pattern 2 ...

Страница 44: ... 65 44 9 3 Internal web server The internal Web server can be accessed by standard web browsers at http 10 10 10 10 It offers some documents for download and is used while updating camera firmware Fig 10 Home page ...

Страница 45: ...SW 2000M CL 65 45 10 External dimensions Fig 11 External dimensions in mm ...

Страница 46: ...t Gain control 0 1 x 32 x additionally effect of Quantum Well selection adds a scale factor of 6 to 1 for small to large size respectively Flange back distance 46 5 mm Nikon F mount Protective glass BK7 with AR coating Position of optical axis 0 1 0 2 mm Supply voltage 11 8 12 24 26 0 Vdc WARNING Overvoltage may damage the camera permanently Power consumption 4 5 W Operating temperature 5 60 C Sto...

Страница 47: ...600 or 115200 bps Regulation EN 61000 6 2 2005 EMC immunity EN 61000 6 4 2007 EMC emissions FCC Part 15 Subpart B 11 3 Performance per selected sensor mode Parameter Symbol Responsive Dynamic Unit Notes Quantum efficiency QE 60 60 Quantum well size 60 360 ke Conversion factor 6 4 1 1 DN ke note per 1000 e Signal to noise ratio SNR 240 47 6 580 55 3 dB EMVA 1288 Dynamic range DR 64 68 dB Temporal d...

Страница 48: ...nsitivity Fig 12 Total spectral response typical without lens 0 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 0 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 Quantum Efficiency Wavelength nm visible light is 390 to 750 nm ...

Страница 49: ...SW 2000M CL 65 49 12 Change History Date Revision Changes 12 June 2014 1 0 First Release 1 0 28 Aug 2014 1 1 First Release rev 1 1 FCC input voltage CS commands web server ...

Страница 50: ...mes mentioned in this manual are trademarks or registered trademarks of their respective owners JAI A S cannot be held responsible for any technical or typographical errors and reserves the right to make changes to products and documentation without prior notification Europe Middle East Africa Asia Pacific Americas Phone 45 4457 8888 Fax 45 4491 3252 Phone 81 45 440 0154 Fax 81 45 440 0166 Phone t...

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