Home

Draft

1. 1 0 0 ee eee 4 2 4 1 3 Configuration Tool Basics 1 1 lille 4 3 4 1 4 Configuration Tool Help II 4 4 4 2 Configuring the Camera By Setting Registers ooooocoooocoooo 4 5 4 2 1 Inquiry Registers roia rer arr saa Cra EEE RESELE mrs 4 6 4 2 1 1 Inquiry Register Details llli 4 6 Vendor Information Inquiry l l 4 6 Model Information Inquiry llle 4 6 Product ID Inquiry brian A 4 7 Serial Number Inquiry llis 4 7 Camera Version Inquiry llle 4 7 Microcontroller Firmware Version Inquiry o 4 8 FPGA Firmware Version Inquiry lessen 4 8 FPGA Configuration Version Inquiry llle 4 8 Camera Status Inquiry aasar keypa eee 4 9 FPGA Status Inquiry 0 0 eee 4 10 Binary Command Protocol Status Inquiry 4 11 Basler L400k Hl Contents 4 2 2 Feature Control and Status Registers 0 0 0 cece eee 4 12 4 2 2 1 Raw Value Fields vs Absolute Value Fields 4 12 4 2 2 2 Feature Control and Status Register Details 4 14 Exposure Time Control Mode CSR 200000 4 14 Exposure Time CSR 20 000 eee eee 4 14 Line Period CSR 2 ee eee ees 4 16 Video Data Output Mode CSR 00022 essel 4 17 GAM OSR as wen bbe pea eae eee he aaa as ees 4 18 Gain Balance CSR 0 ae 4 20 ONSCECSR os stan Suse aa Pee oh Sa a SS 4 22 Offset Balance
2. In free run edge controlled mode the pixels are exposed and charge is accumulated over the full line period from rising edge to rising edge of the internal control signal The falling edge of the control signal is irrelevant The line is read out and transferred on the rising edge of the internal control signal see Figure 3 5 The line period is determined by the setting for the line period parameter The edge controlled mode will give you the best performance in terms of signal to noise ratio Line Period lt gt Exposure gt Internal Control Signal line read out Figure 3 5 Free run Edge controlled Mode Basler L400k Operation and Features n free run programmable mode the pixels are exposed and charge is accumulated when the internal control signal is low The line is read out and transferred on the rising edge of the internal control signal see Figure 3 6 In this mode the line period is determined by the setting for the line period parameter The exposure time parameter setting determines how long the control signal will be low and thus determines the exposure time Line Period Internal Control Signal Exposure Time line read out Figure 3 6 Free run Programmable Mode 3 4 2 2 Selecting a Free run Exposure Mode Setting the Line Period and Setting the Exposure Time You can select a free run exposure time control mode set the line period and set the exposure time
3. EMI I L400k Gad Filter 31 Figure 2 3 Camera Frame Grabber Interface Basler L400k 2 7 Camera Interface 2 4 Input Signals An external sync ExSync signal is the only control signal that can be input into an L400k camera 2 4 1 ExSync Controls Line Readout and Exposure Time The ExSync input signal is used to control exposure time and line readout The ExSync signal is an RS 644 LVDS signal as specified in the Camera Link standard and is usually supplied to the camera by the frame grabber The signal is input to the camera on pins 9 and 22 of the 26 pin MDR connector as specified in the Camera Link standard When the camera is operating with an ExSync signal three exposure time control modes are available edge controlled level controlled and programmable For more detailed information on the three modes see Section 3 4 The period of the ExSync signal determines the camera s line rate 1 Line Rate W__ adus ExSync Signal Period Note that ExSync is edge sensitive and therefore must toggle Minimum high time for the ExSync signal is 0 1 us 2 8 Basler L400k Camera Interface 2 5 Output Signals The camera s output signals include a pixel clock video data and video data qualifiers such as line valid and data valid Sections 2 5 1 through 2 5 4 describe the output signals 2 5 1 Pixel Clock As shown in Figure 2 3 and in Table 2 3 the Camera Link pixel clock is assigned to the TxCIkIn transmit clo
4. You can save the current work set to a file in the non volatile memory with the Camera Configuration Tool Plus CCT or by using binary read write commands from within your own application to set the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the File Name Select parameter and the Create User Set parameter in the User Set Files parameters group to save the work set to a user set file in the non volatile memory By Setting CSRs You can save the current work set to a file in the non volatile memory by writing values to the bulk data CSR for configuration sets The bulk data save process is used to save the work set to a file Section 4 2 3 explains the bulk data CSRs and explains how to use the CSRs to save the work set to a file Section 4 3 1 explains using read write commands Basler L400k 3 43 Operation and Features 3 44 3 15 2 Activating a Saved User Set File As explained in Section 3 15 1 you can save configuration sets to files in the camera s non volatile memory These saved configuration set files are commonly referred to as user configuration sets or user sets If you have saved one or more user set files you can choose to make one of them the activated user set When you activate a saved user set file two things happen The values from the activated user set file are copied into the work set in the camera s vola tile memory
5. overwrites any DSNU shading values that are already in the memory The current set of DSNU values in the volatile memory is used whenever DSNU is enabled Enabling DSNU Shading Correction Once you have a set of DSNU shading values in place you can enable and use DSNU shading correction With the DSNU correction feature enabled the camera will use the set of DSNU shading values to apply the appropriate offset to each pixel to correct for DSNU You can enable DSNU shading correction with the Camera Configuration Tool Plus CCT or by using binary read write commands from within your own application to set the camera s control and status registers CSRs Basler L400k Operation and Features With the CCT With the CCT see Section 4 1 you use the Shading Mode parameter in the Image Enhancement parameters group to enable DSNU shading correction By Setting CSRs You enable DSNU shading correction by writing a value to the Mode field of the Shading Mode CSR see page 4 31 Section 4 2 2 explains CSRs and Section 4 3 1 explains using read write commands 3 9 1 3 PRNU Shading Correction In theory when a line scan camera with a digital sensor captures a line with the camera viewing a uniform light colored target in bright light all of the pixel values in the line should be near their maximum gray value and they should be equal In practice slight variations in the performance of the pixels in the sensor variations in the op
6. A single configuration set contains values for all of the normal parameters needed to configure the camera and the values within a configuration set are used by the camera as a block On L400k cameras the set of DSNU and PRNU shading values see Section 3 9 1 is an example of another type of bulk data The set of shading values contains all of the values needed to do DSNU and PSNU shading correction and the camera uses the shading values as a block L400k cameras have a file system similar to the file system used on PCs L400k cameras can store blocks of bulk data such as a configuration set or the set of shading values in named files within the camera s non volatile memory The camera s bulk data control and status registers CSRs are used to save blocks of bulk data to files in the non volatile memory For example you can use the configuration set bulk data control register to create a named file in the camera and to store the settings from the current work configuration set in the named file In the case of the L400k there are two types of bulk data configuration sets and the set of shading values There is a separate bulk data control and status register for each type of bulk data The configuration set bulk data CSR is used to work with configuration sets and the shading value CSR is used to work with the set of shading values By writing to fields within a bulk data CSR you can do things such as saving a block of bulk data to a file in the
7. By Setting CSRs You can activate a saved shading value file by writing values to the bulk data CSR for shading values Section 4 2 3 explains bulk data CSRs and using the bulk data activate process Section 4 3 1 explains using read write commands Basler L400k Operation and Features 3 9 2 Dark Noise Cancellation When the camera is used at very low line rates or with long idle times a sensor characteristic known as dark current causes extraneous charges to accumulate in the pixels during the time between exposures This accumulated charge can cause all of the lines captured at very low line rates to be too bright or can cause the first few lines captured after a long idle period to be too bright This dark noise effect is most noticeable when You continuously operate the camera at a line rate lower than 1 kHz The camera is idle for longer than 10 ms and then you begin to capture lines You start out with a low line rate and then ramp up to a higher line rate L400k cameras have a dark noise cancellation feature available The dark noise cancellation feature will eliminate the effect caused by the accumulation of extraneous charges when operating at very low line rates or with long idle times In edge controlled mode the dark noise cancellation feature has no effect on the image because no time is present between exposures in edge controlled mode The dark noise cancellation feature should only be used in level c
8. CCT or by using binary write commands from within your own application to set the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the Exposure Time Control Mode parameter in the Exposure parameters group to select the ExSync edge controlled ExSync level controlled or ExSync programmable exposure time control mode If you select the ExSync programmable mode you can use the Exposure Time parameter to set the exposure time By Setting CSRs You select the exposure time control mode by writing a value to the Mode field of the Exposure Time Control Mode CSR see page 4 14 If you select the ExSync programmable mode you will also need to set the exposure time You set the exposure time by writing a value to the Absolute Exposure Time field or to the Raw Exposure Time field of the Exposure Time CSR see page 4 14 Section 4 2 2 explains CSRs and the difference between using the absolute field and the raw field in a CSR Section 4 3 1 explains using read write commands Basler L400k 3 5 Operation and Features 3 6 3 4 1 3 Guidelines When Using an ExSync Signal When using an ExSync signal to control exposure several general guidelines must be followed The ExSync signal must toggle The ExSync signal period must not be lower than a defined minimum The minimum ExSync period for each camera version is shown in Table 3 1 Video Data Out
9. aa daa kE eese 2 20 2 6 RS 644 Serial Communication o oooocoooccocoocc eee 2 21 2 6 1 Making the Serial Connection llle 2 21 2 7 Converting Camera Link Output to RS 644 with a BIC soria nasal qu Re DEC RAE AUS UE ERU EE aee ied 2 22 ZO DE POWER cise ee cbe A Be tad bla oe d e CREE gd 2 22 3 Operation and Features 3 1 Functional Description 20 0202 sh 3 1 3 2 Line Rate 2 tw a dae a ae BI A Sd Ibique Be UE 3 2 Basler L400k Contents 3 3 Video Data Output Modes ooocoocoooooo ee 3 3 3 3 1 Setting the Video Data Output Mode 0 ee 3 3 3 3 2 Changes to the Maximum Line Rate 00 c eee eee 3 3 3 4 Exposure Time Control Modes ooocoooooooco ees 3 4 3 4 1 ExSync Controlled Operation aaaeeeaa aaea 3 4 3 4 1 1 Basics of ExSync Controlled Operation suus 3 4 3 4 1 2 Selecting an ExSync Exposure Mode amp Setting the Exposure Time 3 5 3 4 1 3 Guidelines When Using an ExSync Signal 3 6 34 2 Free RUNS tr oir Aia 3 8 3 4 2 1 Basics of Free run Controlled Operation o o o 3 8 3 4 2 2 Selecting a Free run Exposure Mode Setting the Line Period and Setting the Exposure Time raen tapera pa e A E AE E aR 3 9 3 4 2 3 Guidelines When Using Free run ooooococcccooo ooo 3 10 3 5 Integrate Enabled Signal o ooooccococcoo annann 3 10 3 6 Gain and Offset ut A Ede 3 11 SO GAN ai tt et p oo AP EC RA
10. applied to the camera the camera will automatically switch off the internal power applied to the CCD sensor so that the sensor will be protected In this situation you will still be able to communicate with the camera and the camera will still be able to transmit test images however no live images can be generated 3 Do not reverse the polarity of the input power to the camera Reversing the polarity of the input power can seriously damage the camera Refer to the user s manual for more detailed information about the input power requirements 1 6 Basler L400k Introduction NOTICE An Incorrect Plug Can Damage the Camera s 6 pin Connector The plug on the cable that you attach to the camera s 6 pin connector must be a plug for 6 pins Using a plug designed for a smaller or a larger number of pins can damage the pins in the camera s 6 pin connector To ensure that your warranty remains in effect Do not remove the camera s serial number label If the label is removed and the serial number can t be read from the camera s registers the warranty is void Do not open the camera housing Do not open the camera housing Touching internal components may damage them Keep foreign matter outside of the camera Be careful not to allow liquid flammable or metallic material inside of the camera housing If operated with any foreign matter inside the camera may fail or cause a fire Avoid Electromagnetic Fields Do not operate the camera
11. make note of the camera settings and the frame grabber settings you are using You should also have a captured live image and a captured test image available Technical support will frequently request that you e mail copies of these captured images Use the Camera Configuration Tool Plus CCT to set the camera for test image one Capture several images and carefully check the pixel values in each image Most frame grabbers include software tools that allow you to see the individual values of each pixel in the image and histograms that display distributions of the pixel values in the image The pixel values in your captured test image should be exactly as described in Section 3 10 Also if you capture several test images the pixel values should be the same in all of the captured test images Are the test images OK Yes No A parameter error was present A parameter error occurs when a parameter is set out of range a parameter is set to a value that is not allowed or when parameters that depend on each other are set to conflicting values If you are setting the camera s parameters by using binary commands to write to registers make sure you check the min max and increment fields of each register before you set the parameter value No Go to the interfacing troubleshooting chart Use the CCT to activate the Factory Set then and One of the camera s settings was capture a few normal images No significan
12. 0 ee eee eee 4 52 MOUIS roris rear pra rea 4 48 black images 0 0 eee eee 3 41 block check character calculating lille 4 51 defiried lene ERE ERR Avr 4 47 bulk data control and status registers 4 5 4 35 C cable length ooooccocccccocoooo 2 5 cable specifications camera link rer ee Rx es 2 5 DOWQGF els nel ropa bd 2 5 camera configuration tool auto refresh 2 0 eee ee eee 4 3 closing the tool 4 2 opening the tool 4 2 parameter description window 4 3 refresh button lille 4 3 selecting a port oooo ooooommcmom o oo 4 3 camera link implementation information 2 6 clipping emo onere ie EO r n 3 16 commands see binary commands configuration sets 0 ooo oooooooooo 3 43 configuration tool see camera configuration tool configuring the camera by setting registers 4 5 with the config tool 4 2 connector typeS occ 2 4 control and status registers 4 5 4 12 CSRS u Rata eyelet ey Pn Sa 4 12 D dark imageS 0 cee ee eee 3 41 dark noise cancellation 3 31 data valid bit o ooo o oooo 2 9 2 19 dimensions Camera uc Seed bara is thet 5 2 F mount adapter naana anaana 5 5 DSNU shading correction 3 25 Basler L400k Index dual separated tap nnna annaua naan 2 17 dualtap iilii ere Ea
13. 4 3 for details on the binary read write command protocol 2 6 1 Making the Serial Connection Frame grabbers compliant with the Camera Link specification are equipped with a serial port integrated into the Camera Link interface that can be used for RS 644 serial communication The characteristics of the serial port can vary from manufacturer to manufacturer If you are using the Basler Camera Configuration Tool Plus CCT to configure the camera the tool will detect the characteristics of the serial port on the frame grabber and will determine the appropriate settings so that the tool can open and use the port In order for the CCT to detect and use the port the characteristics of the port must comply with the Camera Link standard and the DLL called for in the standard must be present When the camera is powered on or when a camera reset is performed your PC may receive one random character on the serial interface We recommend clearing the serial input buffers in your PC after a camera power on or reset If you are configuring the camera using binary commands from within your application software your software must be able to access the frame grabber serial port and to determine the appropriate settings so that it can open and use the port Please consult your frame grabber s documentation to determine the port access method and the port characteristics Basler L400k 2 21 Camera Interface 2 7 2 8 2 22 Conv
14. A 3 11 3 6 1 1 Setting the Gain oc ccc eres e rr eR LE RE 3 12 3 0 2 Gain BalanCe ising vies A sek tue erede 3 13 3 6 2 1 Setting the Gain Balance 0 0 0 eee 3 13 AELE I EE E AE e dd tus ans 3 14 3 6 3 1 Setting the Offset oooooococooccoooooco 3 14 36A Offset Balance csse a E S dd 3 14 3 6 4 1 Setting the Offset Balance 0 cee eee 3 15 3 6 5 0 iv a Pm 3 16 3 7 Area of Interest AOI 2 0 0 eee he 3 17 IMA Setting the AO sissies A earn exec HA pall od UE EAS 3 19 3 9 SlaMP ei oy oe hes we be ae ee ee St Pe ae Se he 3 20 3 8 1 Enabling and Setting the Stamp 0 0 00 eee 3 24 3 9 Image Enhancements trans E ELETTI ce Rl hx hn 3 25 3 9 1 Shading Correction 0 00 cee ee 3 25 3 9 1 1 Guidelines When Using Shading Correction 3 25 3 9 1 2 DSNU Shading Correction lille 3 25 3 9 1 3 PRNU Shading Correction lees 3 27 3 9 1 4 Saving DSNU and PRNU Shading Correction Values 3 29 3 9 1 5 Activating Saved DSNU and PRNU Shading Correction Values 3 30 3 9 2 Dark Noise Cancellation llle 3 31 3 9 3 Two line Averaging sili 3 33 3 9 3 1 Changes to the Data Output with Two line Averaging 3 33 3 9 3 2 Changes to the Maximum Line Rate 000 3 35 3 9 3 3 Enabling Disabling Two line Averaging lesse 3 35 II Basler L400k Contents 3 10 Test Images 3 9 EEUU a Elba s
15. Ab solute Line Period and the Raw Line Period fields of the Line Period CSR on page 4 16 DA00067510 16 February 2007 Updated Basler addresses in the U S A and Singapore Made minor corrections throughout the manual Added environmental requirements for storage in section 1 5 1 Corrected base address of two line averaging CSR in section 4 2 2 2 Integrated dual separated video data output mode for the L402k DA00067511 15 June 2010 Updated the addresses and phone numbers on the Contacting Basler Support Worldwide page in the front section of the document Added a line on page 1 7 warning users not to remove the serial number label Added Figure 4 3 describing a read response frame Added section 6 4 describing how to obtain an RMA number Updated the format of Caution and Notice boxes throughout the document Basler L400k Feedback Feedback Your feedback will help us improve our documentation Please click the link below to access an online feedback form Your input is greatly appreciated http www baslerweb com umfrage survey html Basler L400k iii Feedback iv Basler L400k Index A absolute value fields in CSRs 4 12 area of interest eiie 3 17 B BIG o cn fe A we ile ot me ets 2 22 binary commands basic examples 200000 4 49 emor checking 2 oe 4 48 explained ui pere eene 4 43 protocol 6 os ore cre dE 4 44 sample code
16. CSR 1 es 4 24 Area of Interest Starting Pixel CSR 0 02000 4 26 Area of Interest Length CSR 0 2 2 0 000 eee eee 4 27 Stamp Mode CSR ooo 4 28 Stamp Low Pixel Limit CSR 2 220200005 4 29 Stamp High Pixel Threshold CSR 000 eee 4 30 Shading Mode CSR 2 epsa ee 4 31 Shading Value Generate CSR 00 eee 4 31 Dark Noise Cancellation Mode CSR 00 0 eee 4 32 Two line Averaging CSR 1 1 ee eee 4 32 Test Image Mode CSR eee eee 4 33 Camera Reset CSR 0 ccc ee 4 33 Serial Communication CSR 1 1 0 2 eee 4 34 4 2 3 Bulk Data and the Bulk Data Control and Status Registers 4 35 4 2 3 1 Using Bulk Data CSRs to Work with Bulk Data 4 36 4 2 3 2 Bulk Data Control and Status Register Details 4 41 Configuration Set CSR 0 ee 4 41 Shading Value CSR Ueus iae eai ee 4 42 4 3 Using Binary Read Write Commands on the L400k 004 4 43 4 3 1 The Binary Read Write Command Protocol 2000 eae 4 44 4 3 1 1 Error Checking and Responses lees 4 48 4 3 2 Basic Read Write Command Explanations 4 49 4 3 2 1 Read Command 0 0 tee 4 49 4 3 2 2 Write Command 0 4 50 4 3 2 3 Calculating the Block Check Character 0005 4 51 4 4 Binary Command Sample Code 00 cee eee 4 52 5 Mechanical Considerati
17. Camera Link standard As shown in the table the bit assignments for pixel data vary depending on the output mode of the camera The available output modes are explained in more detail in Section 2 5 5 Table 2 3 also shows the assignment for the line valid bit the data valid bit and the pixel clock These assignments are constant for all output modes Port Camera Frame Single 10 Bit Single 8 Bit Grabber Output Mode Output Mode Port AO TxINO RxOUTO Pixel Bit 0 Pixel Bit 0 Port A1 TxIN1 RxOUT1 Pixel Bit 1 Pixel Bit 1 Port A2 TxIN2 RxOUT2 Pixel Bit 2 Pixel Bit 2 Port A3 TxIN3 RxOUT3 Pixel Bit 3 Pixel Bit 3 Port A4 TxIN4 RxOUT4 Pixel Bit 4 Pixel Bit 4 Port A5 TxIN6 RxOUT6 Pixel Bit 5 Pixel Bit 5 Port A6 TxIN27 RxOUT27 Pixel Bit 6 Pixel Bit 6 Port A7 TxIN5 RxOUT5 Pixel Bit 7 Pixel Bit 7 MSB Port BO TxIN7 RxOUT7 Pixel Bit 8 Not Used Port B1 TxIN8 RxOUT8 Pixel Bit 9 Not Used MSB Port B2 TxIN9 RxOUT9 Not Used Not Used Port B3 TxIN12 RxOUT12 Not Used Not Used Port B4 TxIN13 RxOUT13 Not Used Not Used Port B5 TxIN14 RxOUT14 Not Used Not Used Port B6 TxIN10 RxOUT10 Not Used Not Used Port B7 TxIN11 RxOUT 11 Not Used Not Used Port CO TxIN15 RxOUT15 Not Used Not Used Port C1 TxIN18 RxOUT18 Not Used Not Used Port C2 TxIN19 RxOUT19 Not Used Not Used Port C3 TxIN20 RxOUT20 Not Used Not Used Port C4 TxIN21 RxOUT21 Not Used Not Used Port C5 TxIN22 RxOU
18. Configuration Version Offset 0x0001 Size 3 Bytes Type Read only Description The value in this field indicates the camera s FPGA field programmable gate array con figuration version information The bytes in the field are interpreted as follows Byte 1 Low byte of the configuration version BCD coded Byte 2 High byte of the configuration version BCD coded Byte 3 Register layout ID BCD coded Basler L400k Configuring the Camera Camera Status Inquiry The camera has been programmed to detect several error conditions When an error condition is detected a flag is set The camera status inquiry register allows you to read the error flags Register Base Address 0x0C00 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this inquiry register 0x00 The register is not available 0x01 The register is available Field Name Camera Status Offset 0x0001 Size 4 Bytes Type Read only Description Each bit in this field specifies an error condition see table below Bit O is the least signifi cant bit If a bit is set to 1 the error condition assigned to that bit is present If the bit is set to 0 the error is not present Bit Description 0 Reserved 1 The camera is booting or is busy performing an internal operation such as generating shading values 2 A reset has occurred This bit is auto cleared on read 3
19. Depth L402k Only The dual separated output mode is intended for frame grabbers accepting video data that is directly transmitted from the camera without reordering In dual separated 10 bit mode on the L402k the Camera Link pixel clock operates at 30 MHz On each clock cycle the camera transmits data for two pixels at 10 bit depth a line valid bit and a data valid bit The assignment of the bits is shown in Table 2 4 The Camera Link pixel clock is used to time data sampling and transmission As shown in Figures 2 8 and 2 9 the camera samples and transmits data on each rising edge of the pixel clock The line valid bit indicates that a valid line is being transmitted and the data valid bit indicates that valid pixel data is being transmitted Pixel data is only valid when the line valid and data valid bits are both high Operation in dual separated 8 bit mode is similar to dual separated 10 bit mode except that the two least significant bits are dropped and only 8 bits of data per pixel are transmitted The data sequence outlined below along with Figures 2 8 and 2 9 describes what is happening at the inputs to the Camera Link transmitter in the camera Note that the timing used for sampling the data at the Camera Link receiver in the frame grabber varies from device to device On some receivers data must be sam pled on the rising edge of the pixel clock receive clock and on others it must be sampled on the falling edge Also
20. Example of an FTF field Assume that you are issuing a write command that you are using a BCC and that the CSR address you are writing to is a 16 bit address In this case the OpCode bits would be 0b00000 the BCC Code bit would be 0b1 and the AddrLen bits would be 0b00 This would result in a binary value of 0b00000100 which translates to a hex value of 0x04 for the FTF field Data Length field For read commands the DataLen field indicates the number of bytes to read from the given CSR address For write commands the DataLen field indicates the number of bytes contained in the Data field Size 1 byte Range of possible settings 0 to 255 DataLen 0 will result in an ACK but no further command will be executed Address field For read commands indicates the CSR address for the read For write commands indicates the CSR address for the write Size Number of bytes indicated in the AddrLen portion of the FTF field Data field For read commands this field contains no data For wire commands this field contains the data to be written to the CSR Size for read commands 0 bytes Size for write commands the number of bytes indicated in the DataLen field of the frame Basler L400k BCC BFE Configuring the Camera Block Check Character field The use of a block check character in read write commands is optional If bit 2 of the FTF field is 0 the BCC is not used and the BCC field will contain no data If bit 2 of the FT
21. Field Name Microcontroller Firmware Version Offset 0x0001 Size 3 Bytes Type Read only Description The value in this field indicates the camera s microcontroller firmware version information The bytes in the field are interpreted as follows Byte 1 Low byte of the firmware version BCD coded Byte 2 High byte of the firmware version BCD coded Byte 3 Register layout ID BCD coded FPGA Firmware Version Inquiry Register Base Address 0x0800 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this inquiry register 0x00 The register is not available 0x01 The register is available Field Name FPGA Firmware Version Offset 0x0001 Size 3 Bytes Type Read only Description The value in this field indicates the camera s FPGA field programmable gate array firm ware version information The bytes in the field are interpreted as follows Byte 1 Low byte of the firmware version BCD coded Byte 2 High byte of the firmware version BCD coded Byte 3 Register layout ID BCD coded FPGA Configuration Version Inquiry Register Base Address 0x0910 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this inquiry register 0x00 The register is not available 0x01 The register is available Field Name FPGA
22. If you close the error message window wait several seconds and then click the Refresh button on the CCT the shading values will be properly created If you started the generation of the shading values using binary commands and you are using an ExSync signal to trigger line capture and you are operating the camera at very low line rates you should be aware of a restriction The camera will not ac knowledge or respond to binary commands while it is performing the 16 line cap tures needed to create a set of shading values Once you have issued the binary command to start generating shading values you should wait until the generation process is complete before you issue any further binary commands The time needed to complete the generation process will be equal to 16 times the line period 5 Once 16 lines have been captured the camera calculates the DSNU shading correction values a The camera uses the data from the 16 captured lines to calculate an average gray value for each pixel in the line b The camera finds the pixel with the highest average gray value in the line c For each of the other pixels in the line the camera determines the offset that would be needed to make the pixel s average value equal to the average value for the highest pixel d The camera creates a set of DSNU shading values that contains the calculated offsets The set of DSNU values is placed in the camera s volatile memory This set of values
23. Test Image control and status register see page 4 33 When you issue a read command to the camera the camera responds by sending the requested data back to the host computer You can write data to a register field by sending a write command to the camera For example you can use a write command to change the value of the Mode field of the Test Image control register When you issue a write command to the camera the value in the register field will be replaced and the camera will send a write response back to the host computer Each field within a control register or an inquiry register has a specific memory address When you issue a binary read or a binary write command the address for the field you want to work with is included as part of the command Section 4 3 1 describes the binary read write command format in detail Sample code that illustrates how to use binary read and write commands is available from Basler see Section 4 4 Binary read write commands are issued to the L400k via the RS 644 serial connection in the Camera Link interface between the frame grabber and the camera A standard application programmer s interface API for asynchronous serial reading and writing via the RS 644 port on the frame grabber has been defined in the Camera Link standard Appendix B API Functions All Camera Link compatible frame grabbers provide a software library dll file named clser dll where is specific to the frame grabber vendor Th
24. The camera will now use the configuration values that were copied into the work set A link is created between the activated user set file and the camera s volatile memory The values in the activated user set file will now be automatically copied into the work set when ever the camera is powered up or reset Activating a User Set File You can activate a saved user set file with the Camera Configuration Tool Plus CCT or by using binary read write commands from within your own application to set the camera s bulk data control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the File Name Select parameter and the Activate User Set parameter in the User Set Files parameters group to activate a saved user set file By Setting CSRs You can activate a saved user set file by writing values to the bulk data CSR for configuration sets The bulk data activate process is used to activate a stored file Section 4 2 3 explains bulk data CSRs and using the bulk data activate process Section 4 3 1 explains using read write commands Basler L400k Operation and Features 3 15 3 Activating the Factory Set File As explained on page 3 43 a factory configuration set containing an optimized set of parameters is created when the camera is manufactured The factory set is saved in a permanent file in the camera s non volatile memory The factory set file can not be altered or deleted and is not lo
25. a restriction on naming the file that holds the saved set of shading values The file must be named ShadingValues If the ShadingValues file already exists it will be overwritten Basler L400k Configuring the Camera Activating a Saved Configuration Set File The process of activating a saved configuration set file accomplishes two things t copies the values from the saved file into the camera s volatile memory This means that the values will now be actively used by the camera It creates a link to the activated file If the camera is reset or if it is powered off and then back on the values from the activated file will be loaded into volatile memory of the camera and actively used by the camera As an example assume that the camera already has a saved configuration set file named UserSet01 and that you want to activate this file To do so you would follow this procedure 1 Use a binary write command to write the file name UserSet01 to the Name field of the configuration set bulk data CSR see page 4 41 2 Use a binary write command to set the value of the Control field in the configuration set bulk data CSR to 0x05 Setting the value to 0x05 initiates an activate function This procedure would find the UserSet01 file in the non volatile memory and would copy the values in the file into the camera s volatile memory It would also create a link to the file so that the values in the file would be l
26. an error condition is detected the LED will start flashing The number of flashes indicates the detected error as shown in Table 6 1 If several error states are present the LED outputs the error code that has the highest priority To get more information about the camera s current condition you can check the camera status as described in Section 3 12 LED Description Priority LED is solid green This is the normal LED sequence at power on or after a camera for several seconds reset flashes orange and then becomes solid orange Solid orange The camera has power and is OK LED flashes with Indicates that the camera is busy performing a normal operation gradually increas such as generating shading tables When the operation is complete ing frequency the flashing stops Continuous red An overvoltage condition has been detected The flashing will stop 1 flashing after the voltage has returned to normal and the camera is reset or highest powered off and back on Continuous fast General error 2 orange flashing Please contact Basler support Continuous slow One of the following errors is present 3 orange flashing e No FPGA firmware is available Firmware available but error when booting the FPGA Please contact Basler support Table 6 1 Camera Status Indicators 6 1 Basler L400k Troubleshooting LED Description Priority Repeated pattern An erroneous parameter se
27. asp rue ue e RIETI SEIN US 3 3 single tap sex eg ERR amne n 2 12 output signals 0 0 eee ooo 2 9 overvoltage error 6 eee eee 3 40 P parameter error 0 000 3 41 pin assignments 220000200 ee 2 2 pin numbering 2220002000e 2 4 pixel cloek Coca eye eared eee 2 9 2 19 plxel siZe cia ira e 1 3 pixel transmission order 2 12 ascending throughout 3 1 not ascending throughout 3 1 power requirements o o o 1 3 2 22 precautions 2 2 dec is a NE Res 1 6 PRNU shading correction 3 27 programmable exposure mode 3 5 3 9 R raw value fields in feature CSRs 4 12 redistere os lenta cee be it al 4 5 RS 644 QU PUE A A 2 22 serial connection oooooo ooooo 2 21 S sensor line location iio cia rada 5 4 pixel size acti 1 3 positioning accuracy 5 3 LO A 1 3 PO ra 1 3 serial connection see RS 644 serial connection shading correction ooo ooo ooooooo 3 25 single tap 2 e See eae Rake ek a Qe 2 12 specifications cc ic bs eee a ee ae bee 1 3 siamp exar e Sise Hes ee ete verse esd 3 20 SAUS en ere ee ti aa 3 42 T temperature requirements 1 5 testiMageS nit tee EIER a ae 3 36 troubleshooting llle 6 1 V troubleshooting chart interfacing ER uen EXER 6 7 no Image ese uper aep IP n 6 3 poor qualit
28. data CSRs and using the bulk data activate process Section 4 3 1 explains using read write commands 3 15 4 Which Configuration Set File will Load at Startup or at Reset On the initial wake up after delivery the camera copies the factory configuration set into the work set At each subsequent power on or reset the configuration set file that was last activated is copied into the work set If there is no activated file the factory set file will be copied into the work set Basler L400k 3 45 Operation and Features 3 46 3 15 5 Downloading a Saved User Set File to Your PC or Uploading a Saved User Set File From Your PC Once you have saved a user set to a file in the camera s non volatile memory you can download the saved file to your PC Any user set file that you have downloaded to your PC can later be uploaded to a camera These functions are useful if you want to transfer a user set from one camera to another camera of the same type Before you can download a user set to you PC you must have saved the user set to a file in the camera s non volatile memory as described in Section 3 15 1 Downloading and Uploading Saved User Set Files You can download or upload saved user set files with the Camera Configuration Tool Plus CCT or by using binary read write commands from within your own application to set the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you
29. deg 3 36 3 10 1 Guidelines When Using Test Images 0 000 eee eee 3 36 3 10 2 Enabling Test Images 1 0 cece 3 36 3 10 3 Test Image One Fixed Gradient 0 0 00 cee ee 3 37 3 10 4 Test Image Two Moving Gradient 0 0 ce eee eee 3 38 3 10 5 Test Image Three Uniform Black 0 0 c eee ee 3 39 3 10 6 Test Image Four Uniform Gray 3 39 3 11 Error Condition Detection llle eh 3 40 3 11 1 Overvoltage Condition Detected llli eese 3 40 3 11 2 Identical Dark Images Indicate a Parameter Error 3 41 3 12 Checking the Camera Status o oocccoocccooco eee 3 42 3 13 Status LED o omis a DOS qwe oe Pangea A M dM ER 3 42 3 14 Resetting the Camera 1 n 3 42 3 15 Configuration Sets eres sa a E a E EEA eh 3 43 3 15 1 Saving Configuration Sets lille 3 43 3 15 2 Activating a Saved User Set File nauau 0 ee ee 3 44 3 15 3 Activating the Factory Set File 0 0 0 cece eee 3 45 3 15 4 Which Configuration Set File will Load at Startup rat Reset 2i pra A uL ba ad a 3 45 3 15 5 Downloading a Saved User Set File to Your PC or Uploading a Saved User Set File From YourPC 0 0 00 eee eee 3 46 4 Configuring the Camera 4 1 Configuring the Camera with the Camera Configuration Tool Plus CCT 0 0 ai te I S 4 2 4 1 1 Opening the Configuration Tool 1 0 2 0 0 0 ee 4 2 4 1 2 Closing the Configuration Tool
30. field the Address field and the Data field of the command frame For the write command example shown in Section 4 3 2 2 the block check character is 0x18 Let s consider how this block check character was calculated Calculating XOR sums is most easily understood when numbers are shown in their binary form so in the example calculations shown below the hexadecimal digits in our command have been converted to binary To find the XOR sum of two binary numbers you add the two digits in each column using the following rules If both digits are 0 the result is 0 If both digits are 1 the result is 0 If one of the digits is a 1 and the other is a 0 the result is 1 With all of this in mind here is how the check digit for the write command shown in Section 4 3 2 2 would be calculated 0000 010 0 the binary representation of 0x04 FTF 0000 0001 the binary representation of 0x01 DataLen 0000 0101 XOR sum 0000 0101 Previous XOR Sum 0000 0001 2 the binary representation of 0x01 Address Byte 1 0000 010 0 New XOR sum 0000 0100 Previous XOR sum 0001 1000 2 the binary representation of 0x18 Address Byte 2 0001 1 1 0 0 New XOR sum 0001 1 1 0 0 Previous XOR Sum 0000 000 1 the binary representation of 0x01 Data 0001 1 1 0 1 Final XOR sum 0001 1 1 0 1 0x1D the block check character Basler L400k 4 51 Configuring the Camera 4 4 Binary Command Sample Code Sample code
31. for DSNU 2 You can generate the PRNU shading values while using DSNU shading correc tion If you do this the pixel values used to calculate the PRNU correction values will be corrected for DSNU For this option to work correctly you must generate a set of DSNU values before you generate the PRNU values 6 The camera must capture at least 16 lines to generate a set of PRNU shading correction values If your camera is set to control exposure with an ExSync signal you must generate at least 16 ExSync signal cycles after you signal the camera to begin generating the values If you are running the camera in a Free run exposure mode you must wait long enough for the camera to capture at least 16 lines a When the camera is capturing the lines it needs to create the PRNU shading values the line valid and data valid signals will go high and low as you would normally expect However the data in these lines is not useful to you and should be ignored D If you started the generation of the shading values using the CCT and you are us ing an ExSync signal to trigger line capture and you are operating the camera at a line period greater than approximately 300 ms you should be aware of a potential problem Under these conditions the CCT may time out while it is waiting for the camera to capture 16 lines and you may see a Camera is not responding error message This error is not fatal to the shading value creation process I
32. for the free run programmable mode with the Camera Configuration Tool Plus CCT or by using binary write commands from within your own application to set the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the Exposure Time Control Mode parameter in the Exposure parameters group to select the free run edge controlled or free run programmable exposure time control mode The Line Period parameter is used to set the line period If you select the free run programmable mode you can use the Exposure Time parameter to set the exposure time By Setting CSRs You select the exposure time control mode by writing a value to the Mode field of the Exposure Time Control Mode CSR see page 4 14 You setthe line period by writing a value to the Absolute Line Period field or to the Raw Line Period field of the Line Period CSR see page 4 16 If you select the free run programmable mode you will also need to set the exposure time You set the exposure time by writing a value to the Absolute Exposure Time field or to the Raw Exposure Time field of the Exposure Time CSR see page 4 14 Section 4 2 2 explains CSRs and the difference between using the absolute field and the raw field in a CSR Section 4 3 1 explains using read write commands Basler L400k 3 9 Operation and Features 3 4 2 3 Guidelines When Using Free run When using free run mode to control exposure several general g
33. from the camera when breaking connections 3 Do not reverse the polarity of the input power to the camera Reversing the polarity of the input power can seriously damage the camera Refer to the user s manual for more detailed information about the input power requirements You can check to see if the camera has detected an overvoltage condition with the Camera Configuration Tool Plus CCT or by using binary read commands from within your own application to read the camera s inquiry registers With the CCT With the CCT see Section 4 1 you use the Voltage Error parameter in the Camera Information parameters group to determine if an overvoltage condition has been detected If the value is 1 an overvoltage condition has been detected By Reading Inquiry Registers You check for an overvoltage condition by reading the value of bit 6 in the Camera Status field of the Camera Status Inquiry Register see page 4 9 If the bit is set to 1 an overvoltage condition has been detected See Section 4 2 1 for an explanation of Inquiry Registers and Section 4 3 1 for an explanation of using read write commands Basler L400k Operation and Features The Voltage Error parameter in the CCT and bit 6 in the Camera Status field of the Camera Status Inquiry Register will be set to 1 if the camera detects an overvoltage situation They will remain set to 1 until the condition is corrected and a camera re set or a power off on has
34. in the vicinity of strong electromagnetic fields Avoid electrostatic charging Transport Properly Transport the camera in its original packaging only Do not discard the packaging Clean Properly Avoid cleaning the surface of the camera s sensor if possible If you must clean it use a soft lint free cloth dampened with a small quantity of high quality window cleaner Because electrostatic discharge can damage the sensor you must use a cloth that will not generate static during cleaning cotton is a good choice To clean the surface of the camera housing use a soft dry cloth To remove severe stains use a soft cloth dampened with a small quantity of neutral detergent then wipe dry Do not use solvents or thinners to clean the housing they can damage the surface finish Read the Manual Carefully read the User s Manual and the Installation and Setup Guide for Camera Link Cameras before using the camera Basler L400k 1 7 Introduction 1 8 Basler L400k Camera Interface 2 Camera Interface 2 1 Connections 2 1 1 General Description L400k series cameras are interfaced to external circuitry via two connectors located on the back of the camera e a 26 pin 0 050 inch Mini D Ribbon MDR female connector used to transmit video data control data and configuration data a6 pin micro miniature push pull receptacle used to provide power to the camera A status LED located on the back of the camera is used to indicate power
35. is placed in the camera s volatile memory This set of values overwrites any PRNU shading values that are already in the memory The current set of PRNU values in the volatile memory is used whenever PRNU is enabled Enabling PRNU Shading Correction Once you have a set of PRNU shading values in place you can enable and use PRNU shading correction With the PRNU correction feature enabled the camera will use the set of PRNU shading values to apply the appropriate gain adjustment to each pixel to correct for PRNU You can enable PRNU shading correction with the Camera Configuration Tool Plus CCT or by using binary read write commands from within your own application to set the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the Shading Mode parameter in the Image Enhancement parameters group to enable PRNU shading correction By Setting CSRs You enable PRNU shading correction by writing a value to the Mode field of the Shading Mode CSR see page 4 31 Section 4 2 2 explains CSRs and Section 4 3 1 explains using read write commands 3 9 1 4 Saving DSNU and PRNU Shading Correction Values When you generate a set of DSNU shading correction values the set is placed in the camera s volatile memory and overwrites any existing values in the memory The same is true when you generate a set of PRNU shading values The DSNU and PRNU shading values currently in the volatile memory are
36. is successful the CCT will open To familiarize yourself with using the CCT press the F1 key and look through the online help file If an error occurs the CCT is automatically closed after start up 4 1 2 Closing the Configuration Tool Close the CCT by clicking on the X button in the upper right corner of the window 4 2 Basler L400k Configuring the Camera 4 1 3 Configuration Tool Basics The volatile RAM memory in the camera contains the parameter settings that control the current operation of the camera This group of parameter settings in the volatile memory is known as the work configuration set or work set see Section 3 15 The CCT is used to view or change the parameter settings in the work set When the CCT is opened and a port is selected it queries the camera and displays a list of the current settings for the parameters in the work set To simplify navigation parameters are organized D a in related groups For example all parameters VEA related to the camera output can be found in the Domo Poo Retresh Output Mode group Output Mode When you click on the plus or minus sign beside Video Data Output Mode Sigle8Bit v a group or the parameters in this group will Test Image Mode No test image Y be shown or hidden respectively Exposure Gain Offset To get an overview of all parameters available on ol the connected camera maximize the CCT Image En
37. may pro vide sufficient heat dissipation The use of a fan to provide air flow over the camera is an extremely efficient method of heat dissipation The use of a fan provides the best heat dissipation Basler L400k 1 5 Introduction 1 6 Precautions Without sufficient cooling the camera can get hot enough during operation to cause burning when touched NOTICE Avoid dust on the Sensor All cameras are shipped with a cap on the lens mount To avoid collecting dust on the camera s sensor make sure that you always put the cap in place when there is no lens mounted on the camera NOTICE Making or Breaking Connections Incorrectly Can Damage the Camera 1 Be sure that all power to your camera and to your host PC is switched off before you make or break connections to the camera Making or breaking connections when power is on can result in damage to the camera or to the frame grabber 2 If you can t switch off the power be sure that the input power plug is the last connector that you plug into the camera when making connections and the first connector that you unplug from the camera when breaking connections NOTICE Applying Incorrect Input Power Can Damage the Camera 1 The camera s nominal input power voltage is 12 VDC 10 We do not recommend applying an input voltage less than 10 8 VDC or greater than 13 2 VDC 2 The camera does have overvoltage protection If an input voltage greater than 14 5 VDC is
38. nm and it should cut off from 700 720 nm to 1100 nm The camera s F mount adapter does not include an IR cut off filter A suitable filter type is the B W486 for example Using a filter with a higher cut off point than 700 720 nm will increase the camera s response but keep in mind that the response increase will occur because the camera is reacting to IR light not visible light Basler L400k Introduction 1 5 Environmental Requirements 1 5 1 Temperature and Humidity Housing temperature during operation 0 C 50 C 32 F 122 F Humidity during operation 20 80 relative non condensing Storage temperature 20 C 80 C 4 F 176 F Storage humidity 20 80 relative non condensing 1 5 2 Heat Dissipation You must provide sufficient heat dissipation to maintain the temperature of the camera housing at 50 C or less Since each installation is unique Basler does not supply a strictly required technique for proper heat dissipation Instead we provide the following general guidelines n all cases you should monitor the temperature of the camera housing and make sure that the temperature does not exceed 50 C Keep in mind that the camera will gradually become warmer during the first 1 5 hours of operation After 1 5 hours the housing temperature should stabilize and no longer increase f your camera is mounted on a substantial metal component in your system this
39. non volatile memory copying a saved bulk data file from the camera to a PC and creating a list of existing saved bulk data files Section 4 2 3 2 lists the bulk data CSRs in L400k cameras and provides a general description of the use of each field within the registers The best way to understand the use of the bulk data CSRs is to read about the different tasks that you can perform with them Section 4 2 3 1 describes the tasks that are normally performed by manipulating the bulk data CSRs and provides a procedure for performing each task Basler L400k 4 35 Configuring the Camera 4 36 4 2 3 1 Using Bulk Data CSRs to Work with Bulk Data Saving a Configuration Set As mentioned in Section 3 15 the work configuration set resides in the camera s volatile memory Assume that you want to save the values in the current work set to a file named UserSet01 in the camera s non volatile memory To do so you would follow this procedure 1 Use a binary write command to write the file name UserSet01 to the Name field of the configuration set bulk data CSR see page 4 41 2 Use a binary write command to set the value of the Control field of the configuration set bulk data CSR to 0x06 Setting the value to 0x06 initiates a create function This procedure would create a file called UserSet01 in the non volatile memory and would copy the current work set settings from the camera s volatile memory into the new file Sample code that ill
40. normally range from 3 00 dB to 20 00 dB in increments of 0 01 The value in this field is a standard IEEE 754 single precision 32 bit floating point number See Section 3 6 1 for more information about gain Field Name Absolute Min Offset 0x0005 Size 4 Bytes Type Read only Description Minimum allowed floating point value for the absolute gain setting The value in this field is a standard IEEE 754 single precision 32 bit floating point number Field Name Absolute Max Offset 0x0009 Size 4 Bytes Type Read only Description Maximum allowed floating point value for the absolute gain setting The value in this field is a standard IEEE 754 single precision 32 bit floating point number Field Name Raw Gain Offset 0x000D Size 2 Bytes Type Read Write Description Writing an integer value to this field sets the gain The value can normally range from 181 0x00B5 to 2560 0x0A00 The dB of gain that the camera will apply at a given setting in this field is determined by this formula dB 20 x log setting 256 For example if the value in this field is set to 1200 0x04BO then dB 20 xlog 1200 256 dB 13 42 The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the raw value Byte 2 High byte of the raw value See Section 3 6 1 for more information about gain 4 18 Basler L400k Configuring the Camera Field Name Raw Min Offset 0x000F Size 2 Bytes Type R
41. pixels are less than 1 2 of the value for the lightest pixels the camera will not be able to fully correct for shading variations a Ifthe values for the darkest pixels are not less than 1 2 of the value for the lightest pixels go on to step 4 b If the values for the darkest pixels are less than 1 2 of the value for the lightest pixels it usually indicates extreme variations in lighting or poor quality optics Make corrections as required 4 Begin capturing lines either by generating an ExTrig signal to trigger line capture or by setting the camera for free run exposure Basler L400k 3 27 Operation and Features 3 28 5 Signal the camera to generate a set of PRNU shading values a You can start the generation of a set of PRNU shading values with the Camera Configuration Tool Plus see Section 4 1 With the CCT you use the Shading Value Generate parameter in the Image Enhancement parameters group to start the generation of a set of PRNU shading values b You can also start the generation of a set of PRNU shading values by using a binary write command see Section 4 3 to write a value to the Generate field of the Shading Value Generate CSR see page 4 31 D When you generate the PRNU shading values you will have two options 1 You can generate the PRNU shading values without using DSNU shading cor rection If you do this the pixel values used to calculate the PRNU correction val ues will not be corrected
42. present and signal integrity Figure 2 1 shows the connectors and the LED LED 26 Pin Female MDR Connector Drawing is not to scale Figure 2 1 Connectors and LED Basler L400k 2 1 Camera Interface 2 1 2 Pin Assignments and Pin Numbering 26 Pin MDR Connector Pin Assignments The pin assignments for the 26 pin MDR connector on the back of the camera are shown in Table 2 1 Pin Signal Direction Level Function Number Name 15 Tx X0 Output Camera Link Data from Camera Link Transmitter LVDS 2 Tx X0 16 TxX1 Output Camera Link Data from Camera Link Transmitter LVDS 3 Tx X1 17 Tx X2 Output Camera Link Data from Camera Link Transmitter LVDS 4 Tx X2 19 Tx X3 Output Camera Link Data from Camera Link Transmitter LVDS 6 Tx X3 18 Tx Clk Output Camera Link Transmit Clock from Camera Link Trans LVDS mitter 5 Tx Clk 12 CC4 Not Connected 25 CC4 24 CC3 Output RS 644 Integrate Enabled LVDS 11 CC3 10 CC2 Input RS 644 Not Used LVDS 23 CC2 22 CC1 Input RS 644 External Trigger ExSync LVDS 9 CC1 21 SerTFG Output RS 644 Serial Communication Data Transmit LVDS 8 SerTFG 7 SerTC Input RS 644 Serial Communication Data Receive LVDS 20 SerTC 1 13 DC Gnd Input Ground DC Ground 14 26 1 TPins 1 13 14 and 26 are all tied together inside of the camera Table 2 1 Pin A
43. run each cycle of the camera s internal control signal will trigger the output of a line on the test image The exposure time has no effect on test images 3 10 2 Enabling Test Images You can enable a test image with the Camera Configuration Tool Plus CCT or by using binary write commands from within your own application to set the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the Test Image Mode parameter in the Output Mode parameters group to enable a test image By Setting CSRs You enable a test image by writing a value to the Mode field of the Test Image Mode CSR see page 4 33 See Section 4 2 2 for an explanation of CSRs and Section 4 3 1 for an explanation of using read write commands Basler L400k Operation and Features 3 10 3 Test Image One Fixed Gradient Test image one is formed with an odd even gray scale gradient that ranges from 0 to 255 and re peats every 512 pixels as shown in Figure 3 18 The odd pixel gradient starts at O and steps up that is the gray value of pixel 1 is 0 the gray value of pixel 3 is 1 the gray value of pixel 5 is 2 and so forth The even gradient starts at 255 and steps down that is the gray value of pixel 2 is 255 the gray value of pixel 4 is 254 the gray value of pixel 6 is 253 and so forth At pixels 256 and 257 the gray value for both pixels is 128 At pixels 511 and 512 a white odd pixel is next to a black ev
44. some devices are available that allow you to se lect either rising edge or falling edge sampling Please consult the data sheet for the receiver you are using for specific timing information The area of interest AOI and the stamp feature are not available when dual sepa rated output mode is selected Video Data Sequence When the camera is not transmitting valid data the line valid and data valid bits transmitted on each cycle of the pixel clock will be low Once the camera has completed line acquisition it will begin to send valid data e On the clock cycle where pixel data transmission begins the line valid and data valid bits will become high Ten of the bits transmitted during this clock cycle will contain the data for pixel number one and ten of the bits will contain data for pixel number 4080 Onthe second cycle of the pixel clock the line valid and data valid bits will be high Ten of the bits transmitted during this clock cycle will contain the data for pixel number two and ten of the bits will contain data for pixel number 4079 This pattern will continue until all of the pixel data for the line has been transmitted a total of 2040 cycles On cycle 2040 ten of the bits transmitted will contain the data for pixel number 2040 and ten of the bits will contain data for pixel number 2041 After all of the pixels have been transmitted the line valid and data valid bits will become low indicating that valid p
45. that illustrates how to use binary commands with L400k cameras is available at the Basler website Look in the L400 Downloads section of the L400k product page at www baslerweb com 4 52 Basler L400k Mechanical Considerations 5 Mechanical Considerations The L400k camera housing is manufactured with high precision Planar parallel and angular sides guarantee precise mounting with high repeatability NOTICE Avoid dust on the Sensor All cameras are shipped with a cap on the lens mount To avoid collecting dust on the camera s sensor make sure that you always put the cap in place when there is no lens mounted on the camera Basler L400k 5 1 Mechanical Considerations 5 1 Camera Dimensions and Mounting Facilities The dimensions for L400k cameras are as shown in Figure 5 1 L400k cameras are equipped with four M4 mounting holes on the front and two M4 mounting holes on each side as indicated in the drawings 10 3 42 9 0 1 8 x M4 6 deep 15 Mo D Photosensitive Surface of NI the CCD o D p D 1 D ca 6 3 mL 504 1529 F ca 53 571 4 x M4 5 deep I Reference Plane E Tolerances are typical a Drawings are not to scale A PM Figure 5 1 L400k Mechanical Dimensions in mm 5 2 Basler L400k Mechanical Considerations 5 2 Sensor Positioning Accuracy The sen
46. that will be transferred by using this write command As shown in the table on page 4 33 the data size for the Mode field of the Test Image Mode CSR is 1 byte 0x18 isthe Address field in little endian This field indicates the CSR address to which the data bytes will be written The little endian values of 0x01 0x18 in the address field translate to an address of 0x1801 If you check the table on page 4 33 you will find that 0x1801 is the address for the Mode field the Test Image Mode CSR The address for any field within an L400k CSR is equal to the base address for the CSR plus the offset for the CSR field In this case the base address of the Test Image Mode CSR is 1800 and the offset for the Mode field is 0001 This results in an address of 1801 for the Mode field is the Data field This field contains the data that must be written to the register in order to activate Test Image One see the table on page 4 33 is the BCC field See page 4 51 for instructions on calculating a BCC Note that the use of a BCC is optional In this example we assume that a BCC is used is the BFE field The value in the BFE field is always 0x03 Basler L400k Configuring the Camera 4 3 2 3 Calculating the Block Check Character The use of a block check character BCC in L400k commands is optional see pages 4 44 and 4 45 If you choose to use a BCC the BCC will be the exclusive or sum XOR sum of the bytes in the FTF field the DataLen
47. the AddrLen indicates that the address portion of this frame contains a 16 bit address If you check the table on page 4 33 you will find that the address for the Status field of the Test Image CSR is 0x1800 a 16 bit address You are free to use any supported AddrLen as long as the CSR address will fit into it 0x01 is the DataLen field This field indicates the data size in bytes that will be transferred by using this read command As shown in the table on page 4 33 the data size for the Status field of the Test Image CSR is 1 byte Note that for read commands the data size specified in the DataLen field represents the number of bytes of data that you expect to see in the response frame No data bytes are actually included in the read command 0x00 0x18 isthe Address field in little endian This field indicates the CSR address from which the data bytes will be read The little endian values of 0x00 0x18 in the address field translate to an address of 0x1800 If you check the table on page 4 33 you will find that 0x1800 is the address for the Status field of the Test Image CSR 0x15 isthe BCC field See page 4 51 for instructions on calculating a BCC Note that the use of a BCC is optional In this example we assume that a BCC is used 0x03 isthe BFE The value in the BFE field is always 0x03 Basler L400k 4 49 Configuring the Camera 4 50 4 3 2 2 Write Command This section includes a text description the he
48. the falling edge Also some devices are available that allow you to se lect either rising edge or falling edge sampling Please consult the data sheet for the receiver you are using for specific timing information Video Data Sequence When the camera is not transmitting valid data the line valid and data valid bits transmitted on each cycle of the pixel clock will be low Once the camera has completed line acquisition it will begin to send valid data e On the clock cycle where pixel data transmission begins the line valid and data valid bits will become high Ten of the bits transmitted during this clock cycle will contain the data for pixel number one and ten of the bits will contain data for pixel number two On the second cycle of the pixel clock the line valid and data valid bits will be high Ten of the bits transmitted during this clock cycle will contain the data for pixel number three and ten of the bits will contain data for pixel number four This pattern will continue until all of the pixel data for the line has been transmitted A total of 2040 cycles After all of the pixels have been transmitted the line valid and data valid bits will become low indicating that valid pixel data is no longer being transmitted Figure 2 6 shows the data sequence when the camera is operating in edge controlled or level controlled exposure mode and Figure 2 7 shows the data sequence when the camera is operating in progr
49. trig ger the camera faster than allowed the camera will automatically ignore any trigger signals that would cause a max line rate exceeded condition and this bit will not be set There is no ExSync signal A high clipping situation has been detected see Section 3 6 5 A low clipping situation has been detected see Section 3 6 5 A dark pixel error has been detected The camera s sensor has several dark pixels that are used for internal calibration procedures Dark pixel errors are very uncommon but they could be caused by us ing an extremely bright illumination source or if the camera is not equipped with the recommended IR cut filter see Section 1 4 Dark pixel errors could also be caused by a defective sensor 7 Reserved o0 Ww Basler L400k Configuring the Camera Binary Command Protocol Status Inquiry The camera has been programmed to detect several errors in the format of any binary commands received by the camera When an error condition is detected a flag is set The binary command status inquiry register allows you to read the error flags Register Base Address 0x0C30 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this inquiry register 0x00 The register is not available 0x01 The register is available Field Name Binary Command Status Offset 0x0001 Size 1 Byte Type Read o
50. use the File Name Select parameter and the Download User Set File parameter or the Upload User Set File parameter in the User Set Files parameters group to download or upload files By Setting CSRs You can download or upload user set files by writing values to the bulk data CSR for configuration sets The bulk data download process is used to download a user set file from the camera to your PC The bulk data upload process is used to upload a user set file from your PC to a camera Section 4 2 3 explains the bulk data CSRs and explains how to use the CSRs to download or upload a saved user set file Section 4 3 1 explains using read write commands Basler L400k Configuring the Camera 4 Configuring the Camera L400k cameras come with a factory set of parameters that will work properly for most applications with only minor changes For normal operation the following parameters are usually configured by the user Video data output mode Exposure time control mode Exposure time for ExSync programmable or free run programmable exposure modes Line Period for free run exposure modes To customize operation for your particular application the following parameters may also need to be configured Gain Offset Area of Interest Stamp The camera is programmable via the RS 644 serial connection in the Camera Link interface between the frame grabber and the camera Two methods can be used to change the camer
51. value in this field is a standard IEEE 754 single precision 32 bit floating point number Field Name Absolute Max Offset 0x0009 Size 4 Bytes Type Read only Description Maximum allowed floating point value for the absolute exposure time setting This field is updated to reflect any limitations caused by the way any related features are set The value in this field is a standard IEEE 754 single precision 32 bit floating point number Field Name Raw Exposure Time Offset 0x000D Size 4 Bytes Type Read Write Description Writing an integer value to this field sets the exposure time The value can normally range from 150 0x000096 to 1500000 0x16E360 The actual available range may be limited by the way any related parameters are set The integer value represents a multiplier and the actual exposure time is equal to the value in this field times 2 30 us For example if the value in this field is set to 1200 0x0004B0 then Exposure Time 1200 x 2 30 us Exposure Time 80 us The 4 bytes in this field are interpreted as follows Byte 1 Low byte of the raw value Byte 2 Mid byte of the raw value Byte 3 High byte of the raw value Byte 4 Always 0x00 not used See Section 3 4 for more information about exposure time Field Name Raw Min Offset 0x0011 Size 4 Bytes Type Read only Description Minimum allowed integer value for the raw exposure time setting This field is updated to reflect limitations ca
52. 0 OXFFD8 to 40 0X0028 When the camera is set for 10 bit output the value can normally range from 160 OXFF60 to 1600 0X00A0 The DN of offset balance that will be applied at a given setting in this field is determined by this formula DN setting 2 For example if the value in this field is set to 15 0x000F then DN 7 15 2 DN 7 5 The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the raw value Byte 2 High byte of the raw value See Section 3 6 4 for more information about offset balance Basler L400k Configuring the Camera Field Name Raw Min Offset 0x000F Size 2 Bytes Type Read only Description Minimum allowed integer value for the raw offset balance setting The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the min value Byte 2 High byte of the min value Field Name Raw Max Offset 0x0011 Size 2 Bytes Type Read only Description Maximum allowed integer value for the raw offset balance setting The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the max value Byte 2 High byte of the max value Basler L400k 4 25 Configuring the Camera Area of Interest Starting Pixel CSR Register Base Address 0x1000 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The regist
53. 00F Size 2 Bytes Type Read only Description Minimum allowed integer value for the raw gain balance setting The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the min value Byte 2 High byte of the min value Field Name Raw Max Offset 0x0011 Size 2 Bytes Type Read only Description Maximum allowed integer value for the raw gain balance setting The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the max value Byte 2 High byte of the max value Basler L400k 4 21 Configuring the Camera 4 22 Offset CSR Note The offset can be set by writing a floating point value to the Absolute Offset field or by writing an integer value to the Raw Offset field Refer to Section 4 2 2 1 for an explanation of the difference between these two fields Register Base Address 0x0F00 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name Absolute Offset Offset 0x0001 Size 4 Bytes Type Read Write Description Writing a floating point value to this field sets the offset in DN digital numbers For exam ple if the value in this field is set to 10 5 the offset would be 10 5 DN When the camera is s
54. 3 6 1 Gain Gain on L400k cameras is adjustable within a range from 3 00 dB to 20 00 dB in increments of 0 01 dB As shown in the graphs in Figure 3 7 increasing the gain setting increases the slope of the camera s response curve and results in a higher camera output for a given amount of light Decreasing the gain setting decreases the slope of the response curve and results in a lower camera output for a given amount of light On L400k cameras the gain function is accomplished by using a digital technique When you set the gain to a particular dB value a multiplier is calculated based on the formula Multiplier 10 dB 20 The multiplier is then applied to each digitized pixel value before the value is transmitted from the camera For example assume that you set the camera for a gain of 6 00 dB In this case you would have 40 dB 20 Multiplier Multiplier 10 COSE Multiplier 2 0 So each digitized pixel value in the captured line would be multiplied by 2 0 before it is transmitted by the camera Basler L400k Operation and Features 255 192 0 dB Camera Output in dot 128 mode 64 0 Low Medium High Light Level 255 6dB 192 Camera Output in eb 128 mode 64 0 Low Medium High Light Level 255 192 Camera 6 dB Output in abit un mode 64 0 Low Medium High Light Level Figure 3 7 Response at Various Gain Settings 3 11 Operation and Features 3 12 D
55. 52 5 The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the raw value Byte 2 High byte of the raw value See Section 3 6 3 for more information about offset Basler L400k Configuring the Camera Field Name Raw Min Offset Ox000F Size 2 Bytes Type Read only Description Minimum allowed integer value for the raw offset setting The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the min value Byte 2 High byte of the min value Field Name Raw Max Offset 0x0011 Size 2 Bytes Type Read only Description Maximum allowed integer value for the raw offset setting The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the max value Byte 2 High byte of the max value Basler L400k 4 23 Configuring the Camera 4 24 Offset Balance CSR Note The offset balance can be set by writing a floating point value to the Absolute Offset Balance field or by writing an integer value to the Raw Offset Balance field Refer to Section 4 2 2 1 for an explanation of the difference between these two fields Register Base Address 0x0F20 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of ran
56. 8S13X814 X3515X816X X X X Data i i 4 gt gt Actual Pixel Values I 16 Added Stamp Pixel Values Figure 3 13 Stamp Pixels on an L401k with Edge or Level Controlled Exposure 3 20 Basler L400k Operation and Features o o il o Called il il it Called io di salts El ll Salted id r 0 r a3 y D Y Y DOVDODOONESOIXIASADODODO Data Even Pixel lt X X X AN X4X6X SS 2 X S4 X S5 X X S14 X S16 x X X X X Data Actual Pixel Values 48 Added Stamp Pixel Values 5 Figure 3 14 Stamp Pixels on an L402k with Edge or Level Controlled Exposure Basler L400k 3 21 Operation and Features If the stamp feature is used together with the AOI see Section 3 7 feature the stamp pixels are transmitted immediately after the last pixel in the AOI as shown in Figure 3 15 The figure illustrates what you would see if the AOI was set for a starting pixel of 4 and a length in pixels of 5 The line valid and data valid signals will be high while the pixels in the AOI and the stamp pixels are transmitted ExSync Signal Line Valid Data Valid Pixel Clock Pixel 1X2 4 7X 8 Xst X82 815X816 25 X 26 4080 Data i 5X 8 4079 e t Pixel Values i 16 Added from the AOI Stamp Pixel Values Figure 3 15 Stamp Pixels on an L401k with Edge or Level Controlled Exposure and an AOI values When the camera is operating in a 10 bit output mode the stamp pixels will be 10 bit val
57. All cameras have default gain settings that are referenced to a factory master L400k camera This default output is referred to as O dB of gain This means that when you set your camera for 4 00 dB of gain you are getting 4 00 dB more than the factory master And if you set your camera to 2 00 dB of gain you are getting 2 00 dB less than the factory master Referencing the gain settings on all cameras to a factory master ensures that when you set one L400k camera to a given gain setting its response will essentially match all other L400k cameras set for the same gain This characteristic is very useful when multiple cameras are installed next to each other to form one large im age or when a camera in an existing application needs to be replaced 3 6 1 1 Setting the Gain You can set the gain with the Camera Configuration Tool Plus CCT or by using binary write commands from within your own application to set the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the Gain parameter in the Gain amp Offset parameters group to set the gain By Setting CSRs You set the gain by writing a value to the Absolute Gain field or to the Raw Gain field of the Gain CSR see page 4 18 Section 4 2 2 explains CSRs and the difference between using the absolute field and the raw field in a CSR Section 4 3 1 explains using read write commands Basler L400k Operation and Fea
58. B to 1 00 dB in increments of 0 01 The value in this field is a standard IEEE 754 single precision 32 bit floating point number See Section 3 6 2 for more information about gain balance Field Name Absolute Min Offset 0x0005 Size 4 Bytes Type Read only Description Minimum allowed floating point value for the absolute gain balance setting The value in this field is a standard IEEE 754 single precision 32 bit floating point number Field Name Absolute Max Offset 0x0009 Size 4 Bytes Type Read only Description Maximum allowed floating point value for the absolute gain balance setting The value in this field is a standard IEEE 754 single precision 32 bit floating point number Field Name Raw Gain Balance Offset 0x000D Size 2 Bytes Type Read Write Description Writing an integer value to this field sets the gain balance The value can normally range from 228 0x00E4 to 288 0x0120 The dB of gain balance that the camera will apply at a given setting in this field is deter mined by this formula dB 20 x log setting 256 For example if the value in this field is set to 270 OxOOFO then dB 20 x log 270 256 dB 0 46 The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the raw value Byte 2 High byte of the raw value See Section 3 6 2 for more information about gain balance 4 20 Basler L400k Configuring the Camera Field Name Raw Min Offset Ox0
59. Basler L400k USER S MANUAL Document Number DA000675 Version 11 Language 000 English Release Date 15 June 2010 BASLER For customers in the U S A 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 protec tion against harmful interference when the equipment is operated in a commercial environ ment 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 expense You are cautioned that any changes or modifications not expressly approved in this manual could void your authority to operate this equipment The shielded interface cable recommended in this manual must be used with this equipment in order to comply with the limits for a computing device pursuant to Subpart J of Part 15 of FCC Rules For customers in Canada This apparatus complies with the Class A limits for radio noise emissions set out in Radio In terference Regulations Pour utilisateurs au Canada Cet appareil est conforme aux normes Classe A pour bruits radio lectriques sp cifi es dans le R glement sur le brouil
60. F field is 1 the BCC field will contain the block check character Size 0 bytes if bit 2 of the FTF field is 0 1 byte if bit 2 of the FTF field is 1 The block check character is the exclusive or sum XOR sum of the bytes in the FTF DataLen Address and Data fields see Section 4 3 2 3 Binary Frame End field Identifies the end of a binary frame Size 1 byte The value of the BFE byte is always 0x03 ACK NAK Response Positive frame acknowledge negative frame acknowledge Size 1 byte The value for a positive frame acknowledgement ACK is 0x06 and for a negative frame acknowledgement NAK is 0x15 All values are formatted as little endian Intel format Basler L400k 4 47 Configuring the Camera 4 48 4 3 1 1 Error Checking and Responses ACK NAK When the camera receives a frame it checks to see if the order of the bytes in the frame is correct If the FTF field indicates that the frame includes a BCC the camera checks to see if the XOR sum of the relevant frame fields matches the block check character The camera also checks to see if the number of bytes in the data field is equal to the number specified in the DataLen field If all checks are correct an ACK is sent to the host If any check is incorrect a NAK is sent Byte Time outs The camera checks the time between the receipt of each byte in the frame If the time between any two bytes exceeds 0 5 seconds the camera enters a garba
61. Parameter error for example a parameter has been set to a value that is out of range or not allowed 4 A user set load has failed 5 A file operation has failed 6 An overvoltage situation has been detected 7 A binary read write command protocol error has been detected For more in formation about the error read the Binary Command Status Inquiry register see page 4 11 This bit is auto cleared on read 8 15 Reserved 16 An FPGA not ready error has occurred For more information about the error read the FPGA Status Inquiry register see page 4 10 This bit clears when you read the FPGA Status Inquiry register 17 A trigger error has occurred Either the line rate has been exceeded or the ExSync signal is missing For more information about the error read the FPGA Status Inquiry register see page 4 10 This bit clears when you read the FPGA Status Inquiry register 18 Illumination warning High clipping low clipping or a dark pixel error has oc curred For more information about the error read the FPGA Status Inquiry register see page 4 10 This bit clears when you read the FPGA Status In quiry register 19 The last shading value generation process failed The DSNU shading value generation process can fail if the pixel values in the lines captured during the generation process are too high The process should be performed in darkness or in very low light conditions The PRNU shading value generation process can fail if
62. RxOUT8 Odd Pixel Bit 9 Even Pixel Bit 1 Pixel A Bit 9 Pixel B Bit 1 MSB MSB Port B2 TxIN9 RxOUT9 Not Used Even Pixel Bit 2 Not Used Pixel B Bit 2 Port B3 TxIN12 RxOUT12 Not Used Even Pixel Bit 3 Not Used Pixel B Bit 3 Port B4 TxIN13 RxOUT13 Even Pixel Bit 8 Even Pixel Bit4 Pixel B Bit 8 Pixel B Bit 4 Port B5 TxIN14 RxOUT14 Even Pixel Bit9 Even Pixel Bit5 Pixel B Bit 9 Pixel B Bit 5 MSB MSB Port B6 TxIN10 RxOUT10 Not Used Even Pixel Bit 6 Not Used Pixel B Bit 6 Port B7 TxIN11 RxOUT11 Not Used Even Pixel Bit 7 Not Used Pixel B Bit 7 MSB MSB Port CO TxIN15 RxOUT15 Even Pixel Bit 0 Not Used Pixel B Bit 0 Not Used Port C1 TxIN18 RxOUT18 Even Pixel Bit 1 Not Used Pixel B Bit 1 Not Used Port C2 TxIN19 RxOUT19 Even Pixel Bit 2 Not Used Pixel B Bit 2 Not Used Port C3 TxIN20 RxOUT20 Even Pixel Bit 3 Not Used Pixel B Bit 3 Not Used Port C4 TxIN21 RxOUT21 Even Pixel Bit 4 Not Used Pixel B Bit 4 Not Used Port C5 TxIN22 RxOUT22 Even Pixel Bit 5 Not Used Pixel B Bit 5 Not Used Port C6 TxIN16 RxOUT16 Even Pixel Bit 6 Not Used Pixel B Bit 6 Not Used Port C7 TxIN17 RxOUT17 Even Pixel Bit 7 Not Used Pixel B Bit 7 Not Used DVAL TxIN26 RxOUT26 Data Valid Data Valid Data Valid Data Valid LVAL TxIN24 RxOUT24 Line Valid Line Valid Line Valid Line Valid Not Used TxIN23 RxOUT23 Not Used Not Used Not Used Not Used Not Used TxIN25 RxOUT25 Not Used Not Used Not Used Not Used CL PCIk TxCLKIn RXCLKOut Pixel Cl
63. See Section 3 9 2 for more information about dark noise cancellation Two line Averaging CSR Register Base Address 0x1C00 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name Mode Offset 0x0001 Size 1 Byte Type Read Write Description Writing an integer value to this field sets the two line averaging mode 0x00 Two line averaging disabled 0x01 Two line averaging enabled See Section 3 9 3 for more information about two line averaging Basler L400k Configuring the Camera Test Image Mode CSR Register Base Address 0x1800 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name Mode Offset 0x0001 Size 1 Byte Type Read Write Description Writing an integer value to this field sets the test image mode 0x00 Test images disabled 0x01 Test image 1 enabled fixed gradient pattern 0x02 Test image 2 enabled moving gradient pattern 0x03 Tes
64. T22 Not Used Not Used Port C6 TxIN16 RxOUT16 Not Used Not Used Port C7 TxIN17 RxOUT17 Not Used Not Used DVAL TxIN26 RxOUT26 Data Valid Data Valid LVAL TxIN24 RxOUT24 Line Valid Line Valid Not Used TxIN23 RxOUT23 Not Used Not Used Not Used TxIN25 RxOUT25 Not Used Not Used CL PCIk TxCLKIn RxCLKOut Pixel Clock Pixel Clock Table 2 3 Bit Assignments Single Output Mode Basler L400k Camera Interface Port Camera Frame Dual 10 Bit Dual 8 Bit Dual Sepa Dual Sepa Grabber Output Mode Output Mode rated rated 10 Bit 8 Bit Output Mode Output Mode Port AO TxINO RxOUTO Odd Pixel Bit O Odd Pixel BitO Pixel A Bit 0 Pixel A Bit 0 Port A1 TxIN1 RxOUT1 Odd Pixel Bit 1 Odd Pixel Bit 1 Pixel A Bit 1 Pixel A Bit 1 Port A2 TxIN2 RxOUT2 Odd Pixel Bit 2 Odd Pixel Bit2 Pixel A Bit 2 Pixel A Bit 2 Port A3 TxIN3 RxOUT3 Odd Pixel Bit 3 Odd Pixel Bit3 Pixel A Bit 3 Pixel A Bit 3 Port A4 TxIN4 RxOUT4 Odd Pixel Bit 4 Odd Pixel Bit 4 Pixel A Bit 4 Pixel A Bit 4 Port A5 TxIN6 RxOUT6 Odd Pixel Bit 5 Odd Pixel Bit5 Pixel A Bit 5 Pixel A Bit 5 Port A6 TxIN27 RxOUT27 Odd Pixel Bit 6 Odd Pixel Bit6 Pixel A Bit 6 Pixel A Bit 6 Port A7 TxIN5 RxOUT5 Odd Pixel Bit 7 Odd Pixel Bit 7 Pixel A Bit 7 Pixel A Bit 7 MSB MSB Port BO TxIN7 RxOUT7 Odd Pixel Bit 8 Even Pixel BitO Pixel A Bit 8 Pixel B Bit 0 Port B1 TxIN8
65. The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name Mode Offset 0x0001 Size 1 Byte Type Read Write Description Writing an integer value to this field sets the video data output mode 0x00 Single 8 bit output 0x01 Dual 8 bit output L402k only 0x02 Single 10 bit output 0x03 Dual 10 bit output L402k only 0x21 Dual separated 8 bit output L402k only 0x23 Dual separated 10 bit output L402k only See Sections 2 5 5 for descriptions of the video data output modes Basler L400k 4 17 Configuring the Camera Gain CSR Note The gain can be set by writing a floating point value to the Absolute Gain field or by writing an integer value to the Raw Gain field Refer to Section 4 2 2 1 for an explanation of the difference between these two fields Register Base Address 0x0E00 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name Absolute Gain Offset 0x0001 Size 4 Bytes Type Read Write Description Writing a floating point value to this field sets the gain in dB For example if the value in this field is set to 10 55 the gain would be 10 55 dB The gain can
66. a The plug should be used to terminate the cable on the power supply for the camera An Incorrect Plug Can Damage the Camera s 6 pin Connector The plug on the cable that you attach to the camera s 6 pin connector must be a plug for 6 pins Using a plug designed for a smaller or a larger number of pins can damage the pins in the camera s 6 pin connector Basler L400k 2 2 Camera Interface Cable Information 2 2 1 Camera Link Cable A Camera Link compatible MDR cable assembly is available from Basler as a stock item part 1000013041 for a 3 meter cable and part 1000013042 for a 5 meter cable As an alternate you can use the cable assembly manufactured by 3M part 14X26 SZLB XXX 0LC The maximum allowed length for the MDR cable used with an L400k is 10 meters Note that in order to access the Integrate Enabled signal you must use the Basler stock cable see Sect 2 5 6 2 2 2 Power Cable A Hirose 6 pin locking plug will be shipped with each camera This plug should be used to connect the power supply cable to the camera For proper EMI protection the power supply cable attached to this plug must be a twin cored shielded cable Also the housing of the Hirose plug must be connected to the cable shield and the cable must be connected to earth ground at the power supply Power requirements are given in Section 2 8 Basler L400k 2 5 Camera Interface 2 3 2 6 Camera Link Impleme
67. a s parameters The first and easier approach is to change the parameters using the Camera Configuration Tool Plus CCT See Section 4 1 for instructions on using the configuration tool You can also change the parameters directly from your application by using binary read write commands to set values in the camera s registers see Section 4 2 Basler L400k 4 1 Configuring the Camera 4 1 Configuring the Camera with the Camera Configuration Tool Plus CCT The Camera Configuration Tool Plus CCT is a Windows based program used to easily change the camera s parameter settings The tool communicates via the RS 644 serial connection in the Camera Link interface between the frame grabber and the camera The tool automatically generates the binary programming commands that are described in Section 4 3 You can download the CCT software from the Downloads section of the Basler website at www baslerweb com It is assumed that you are familiar with Microsoft Windows and that you have a basic knowledge of how to use programs If not please refer to your Microsoft Windows manual 4 1 1 Opening the Configuration Tool 1 Make sure that the properties for the RS 644 serial port on your frame grabber are properly configured and that the camera has power 2 To start the CCT click Start click All Programs click Basler Vision Technologies and click CCT default installation During start up a start up screen will appear If start up
68. ails of the video data sequence see Section 2 5 5 3 3 2 Line Rate The camera s maximum achievable line rate depends on the following factors Video data output mode Section 3 3 Exposure time Section 3 4 Use of two line averaging Section 3 9 3 3 2 Basler L400k 3 3 Operation and Features Video Data Output Modes L400k cameras can output video data in different modes Single 8 bit mode Single 10 bit mode Dual 8 bit mode L402k only Dual 10 bit mode L402k only Dual separated 8 bit mode L402k only Dual separated 10 bit mode L402k only These modes of operation are described in detail in Section 2 5 5 3 3 1 Setting the Video Data Output Mode You can set the video data output mode with the Camera Configuration Tool Plus CCT or by using binary write commands from within your own application to set the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the Video Data Output Mode parameter in the Output Mode parameters group to set the output mode By Setting CSRs You select the video data output mode by writing a value to the Mode field of the Video Data Output Mode CSR see page 4 17 See Section 4 2 2 for an explanation of CSRs and Section 4 3 1 for an explanation of using read write commands 3 3 2 Changes to the Maximum Line Rate The video data output mode has an effect on the camera s maximum achievable line ra
69. ammable exposure mode The data sequence assumes that the camera is operating in 10 bit mode If the camera is operating in 8 bit mode only 8 bits of data per pixel will be transmitted 2 When the AOI and Counter Stamp features are used the number of cycles could be more or less than 2040 See Sections 3 7 and 3 8 for more information Basler L400k Camera Interface ExSync Signal Line Valid Data Valid xx Pixel Clock Odd D ON CU XS XX ARX ENUM X X X or 8 bits Even ed X X X X 2 X 4 X 6 X 8 X 10 X 12 X 14 X XN 12XN 10XN 8XN 6XN 4XN 2X N X X X X 10 or 8 bits N 4080 When the AOI and Stamp features are used N could be more or less than 4080 see Sections 3 7 and 3 8 Timing diagrams are not to scale Figure 2 6 L402k Dual 10 or 8 Bit Output Mode with Edge or Level controlled Exposure Basler L400k 2 15 Camera Interface end of Q ss VU nmm nnnm Odd Pixel CX X X XiX X5 XIX Xn 8X 8 136 9 9 0XN 98 34X X X X Data 1 3X5 7X9X11X 13 N 9XN 7XN 5XN 3XN 1 10 or 8 bits Pea DOC KKK EK EX OX EKO 9 99930000 10 or 8 bits en When the AOI and Stamp features are used N could be more or less than 4080 see Sections 3 7 and 3 8 Timing diagrams are not to scale Figure 2 7 L402k Dual 10 Bit or Dual 8 Bit Output Mode with Programmable Exposure 2 16 Basler L400k Camera Interface 2 5 5 3 Operation in Dual Separated Output Mode 10 or 8 Bit
70. an just a small set of individually defined values Any one of these scalar parameters can be set on a raw scale or on an absolute scale A raw scale is simply a range of integer values that has no defined units An absolute scale is a range of floating point values that has defined units Lets look at the Gain parameter as an example Setting the Raw Gain If you set the gain by writing a value to the Raw Gain field of the Gain CSR you can write any integer value from 181 to 2560 decimal Writing an integer value to the raw register sets the gain but it doesn t directly tell you how many dB of gain you will be getting from the camera at that setting To determine the dB of gain you are getting at a particular raw gain setting you must use the formula dB 20 x log raw setting 256 For example if the raw gain field is set to 1200 decimal dB 20 x log raw setting 256 dB 20 x log 1200 256 dB 13 42 So with the raw gain field set to 1200 the camera would be set for 13 42 dB of gain Basler L400k Configuring the Camera Setting the Absolute Gain If you set the gain by writing a value to the Absolute Gain field of the Gain CSR you can write a floating point value from 3 00 to 20 00 decimal in increments of 0 01 Writing a floating point value to the absolute register sets the gain directly in dB For example ifthe absolute gain field is set to 13 42 then the camera would be set for 13 42 dB of ga
71. and must have the following characteristics OpCode 0x05 This OpCode makes the binary command a bulk data read DataLen the number of bytes to be read Max is 255 characters Address 0x281B Base address for the configuration set bulk data CSR plus the offset for the Data field Data none You receive a bulk data response frame from the camera The amount of data in the response will be as specified by the DataLen in step 4 Use a binary read command to read the value in the Info field of the configuration set bulk data CSR a Ifthe value is 0x01 no more data exists in the file Exit the procedure b Ifthe value is 0x00 more data exists and this is not an activated file Return to step 4 c Ifthe value is 0x04 more data exists and this is an activated file Return to step 4 Up to 255 characters can be read with a single binary bulk data read command If the file is larger than 255 characters repeated binary bulk data read commands are required When repeated bulk data read commands are required the file is read sequentially with each read command starting where the previous read stopped This procedure would download the data in the file to the host computer If you wanted to download an existing shading value bulk data file to the host PC you would use a similar procedure but you would use the shading value bulk data CSR instead Sample code that illustrates how to download a bulk data file is available from Bas
72. anging surface texture or reflectance will produce images that appear noisy Has the problem been corrected Exit this chart Contact Basler Technical Support The contact numbers appear on the title page of this manual Before you call for support be sure to make note of the camera settings and the frame grabber settings you are using You should also have a captured live image and a captured test image available Technical support will frequently request that you e mail copies of these captured images Basler L400k Troubleshooting 6 2 3 Interfacing Use the interfacing troubleshooting charts if you think that there is a problem with the cables between your devices or if you have been directed here from another chart Interfacing Chart Always switch off power to the system before making or breaking any connection Ifyou have not already do so use a voltmeter to check the power source for the camera The output must be 12 VDC 1 2 V Also make Replace the sure that the power source meets the other specs shown in Section 2 8 No power source Is the power source OK Yes Reseat the cable connections at the camera and the frame grabber EN After you reseated the connections is the problem still present No Yes Check all of the cables in the system Check Section 2 2 of this manual and make sure that you are using a cable that has the right characteristics and is not too long It is extremely importan
73. as follows Byte 1 Low byte of the raw value Byte 2 Mid byte of the raw value Byte 3 High byte of the raw value Byte 4 Always 0x00 not used The minimum and maximum raw line period settings vary depending on the camera ver sion and other settings see Section 3 2 To determine the current minimum and maximum settings check the entries in the Raw Min and Raw Max fields See Section 3 4 for more information about the line period 4 16 Basler L400k Configuring the Camera Field Name Raw Min Offset 0x0011 Size 4 Bytes Type Read only Description Minimum allowed integer value for the raw line period setting The 4 bytes in this field are interpreted as follows Byte 1 Low byte of the min value Byte 2 Mid byte of the min value Byte 3 High byte of the min value Byte 4 Always 0x00 not used Field Name Raw Max Offset 0x0015 Size 4 Bytes Type Read only Description Maximum allowed integer value for the raw line period setting The 4 bytes in this field are interpreted as follows Byte 1 Low byte of the max value Byte 2 Mid byte of the max value Byte 3 High byte of the max value Byte 4 Always 0x00 not used Video Data Output Mode CSR Register Base Address 0x1700 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01
74. ation about using bulk data control registers Register Base Address 0x2A00 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in this register is set out of range Field Name Control Offset 0x0001 Size 1 Byte Type Read Write Description Writing an integer value to this field selects a bulk data control function 0x00 Enumerate 0x01 ENext 0x02 Read 0x03 Write 0x05 Activate 0x06 Create Field Name Info Offset 0x0002 Size 1 Byte Type Read only Description If you are performing a bulk data read or write operation this field will indicate when no more data exits 0x00 More data exists 0x01 No more data exists 0x03 File operation error 0x04 This is an activated file Field Name File Name Offset 0x003 Size 20 Bytes Type Read Write Description Character string indicating the name of a bulk data file The field contains 20 characters left aligned zero padded Field Name Size Offset 0x0017 Size 4 Bytes Type Read only Description Ifthe file name refers to an already existing bulk data file this field will contain the file size in bytes Otherwise the field contains zeros Field Name Data Offset 0x001B Size 1 Varies Type Read Write De
75. ation in Section 3 4 1 3 Added Section 3 9 2 describing the dark noise cancellation feature Added the description on page 4 32 of the CSR for the dark noise can cellation feature Removed the binary command sample code from Section 4 4 and added a reference to a web location where the newest code can be downloaded Revised the drawings in Figures 5 1 and 5 2 to show new reference markers to help orient the drawings to one another Added Section 5 3 showing the location of the line on the sensor Added a description of the red blinking LED to Section 6 1 Basler L400k Revision History Doc ID Number Date Changes DA00067508 12 July 2005 Updated the camera version in Section 1 1 Added new single tap video data output mode for L402k cameras to Section 1 2 Section 1 3 Section 2 5 5 Introduction in Section 3 Introduction in Section 3 3 Section 3 3 2 Sections 3 4 1 3 and 3 4 2 3 Page 4 17 Added Section 3 2 Added new two line averaging feature to Section 3 9 3 Sections 3 4 1 3 and 3 4 2 3 Page 4 32 Added that dark noise cancellation has no effect in edge controlled mode Note box on page 3 31 Table 3 7 on page 3 32 Page 4 32 Updated CCT screenshot Figure 4 1 on page 4 3 Added Section 6 5 DA00067509 02 August 2005 Corrected description of two line averaging CSR on page 4 32 Modified statements about minimum and maximum settings in the
76. aximum allowed integer value for the starting pixel setting This field is updated to reflect limitations caused by the way any related features are set The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the max value Byte 2 High byte of the max value Field Name Increment Offset 0x0007 Size 2 Bytes Type Read only Description An integer value indicating the increment for the starting pixel setting The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the max value Byte 2 High byte of the max value 4 26 Basler L400k Configuring the Camera Area of Interest Length CSR Register Base Address 0x100A Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range 0X81 The setting for the AOI length conflicts with the setting for the AOI starting pixel Field Name Length Offset 0x0001 Size 2 Bytes Type Read Write Description Writing an integer value to this field sets the length in pixels for the area of interest AOI feature The value for the length in pixels can normally range from 1 0x0001 to 4080 OxOFFO The actual available range may be limited by the way any related parameters are set If the val
77. ay value of pixel 1 is 2 the gray value of pixel 2 is 3 the gray value of pixel 3 is 4 and so forth This shifting of the gradient makes the pattern appear to be moving as the ExSync signal or the internal control signal cycles When you view the output of a camera that is set for test image two the pattern should appear to be gradually moving up the screen This feature is useful for determining if the camera is receiving an ExSync signal from your frame grabber and if the frame grabber is receiving every line that is output from your camera gray level pixel number Figure 3 20 Formation of Test Image Two Y 4 4 4 4 4 am aum Figure 3 21 Test Image Two The description above of the pixel values in test image two is only valid when the camera is set for an 8 bit output mode and the gain gain balance offset and offset balance parameters are all set to 0 and shading correction is disabled Basler L400k Operation and Features 3 10 5 Test Image Three Uniform Black In test image three all pixels will have a value of 0 whether the camera is set for an 8 bit output mode or for a 10 bit output mode Test image three should always appear as a uniform black image Test image three is useful for checking the integrity of the data transmitted by the camera If you capture lines and examine the pixel values in the captured lines the values should be exactly as described above gain gain balanc
78. been performed 3 11 2 Identical Dark Images Indicate a Parameter Error If the camera detects that a parameter error is present it will automatically switch into a mode where it outputs identical dark images In this mode all of the pixel values in each line will be low and the pixel values in each captured line will be identical to the pixel values in all other captured lines A parameter error indicates that a parameter is set out of range that a parameter is set to an invalid value or that parameters which depend on each other are set in conflict Since the CCT automatically checks that parameters are set correctly you will not normally see a parameter error situation when you set parameters with the CCT When you set parameters using binary commands you may see parameter error situations if you inadvertently set parameters to values that are not allowed or are in conflict If you suspect that the camera is in a parameter error situation you can read the value in the Camera Status field of the Camera Status inquiry register see page 4 9 If the parameter error bit is set then a parameter error situation is present A simple way to recover from a parameter error situation is to activate the camera s factory configuration set see Section 3 15 3 Activating the factory set will load a set of factory determined optimal parameters into the camera Whenever you set the camera s parameters by using binary commands to wr
79. cal support contact numbers are shown in the front section of this manual 1 The camera s product ID 2 The camera s serial number 3 The operating system 4 Frame grabber that you use with the camera 5 CCT version that you use with the camera 6 Describe the problem in as much detail as possible If you need more space use an extra sheet of paper 7 If known what s the cause of the problem 8 When did the problem occur After start While running After a certain action e g a change of parameters Basler L400k Troubleshooting 9 How often did does the prob Once Every time lem occur Regularly when Occasionally when 10 How severe is the problem Camera can still be used Camera can be used after take this action Camera can no longer be used 11 Did your application ever run Yes rt No without problems 12 Parameter set It is very important for Basler Technical Support to get a copy of the exact camera parame ters that you were using when the problem occurred To make a copy of the parameters open the parameter set in the CCT and save or dump the settings to a file Send the generated file to Basler Technical Support If you cannot access the camera please try to state the following parameter settings Video data output mode Exposure time control mode Exposur
80. ck pin of the Camera Link transmitter The pixel clock is used to time the sampling and transmission of pixel data as shown in Figures 2 4 through 2 7 The Camera Link transmitter used in L400k cameras requires pixel data to be sampled and transmitted on the rising edge of the clock L400k cameras operate with a 30 MHz pixel clock frame grabber varies from device to device On some receivers data must be sam pled on the rising edge of the pixel clock receive clock and on others it must be sampled on the falling edge Also some devices are available that allow you to se lect either rising edge or falling edge sampling Please consult the data sheet for the receiver you are using for specific timing information Note that the timing used for sampling the data at the Camera Link receiver in the 2 5 2 Line Valid Bit As shown in Figures 2 4 through 2 7 the line valid bit indicates that a valid line is being transmitted Pixel data is only valid when this bit is high 2 5 3 Data Valid Bit The data valid bit indicates that valid pixel data is being transmitted Pixel data is only valid when the line valid bit and the data valid bit are both high Basler L400k 2 9 Camera Interface 2 10 2 5 4 Video Data Table 2 3 lists the assignment of pixel data bits to the input ports on the transmitter in the camera and the corresponding output pins on the receiver in the frame grabber These bit assignments comply with the
81. conds The feature behind this behavior is called Auto Refresh If auto refresh is not enabled the display will not update if a parameter setting is changed using another tool if power to the camera is switched off and on or if the connected camera is exchanged while the CCT is displaying the parameter settings To manually refresh the display you can use the Refresh button in the top right corner of the tool Basler L400k 4 3 Configuring the Camera D Keep in mind that the work set is stored in the camera s volatile memory Any changes you make to the work set using the configuration tool will be lost when the camera is switched off To save changes you make to the work set save the modified work set to one of the camera s four user set files The user set files are stored in non volatile memory and will not be lost when the camera is switched off see Sec tion 3 15 4 1 4 Configuration Tool Help The CCT includes a complete on line help file which explains how to change parameter settings It also explains how to copy the work set to a saved user set file and how to copy a saved user set file or the factory set file to the work set To access on line help press the F1 key whenever the configuration tool is active Basler L400k 4 2 Configuring the Camera Configuring the Camera By Setting Registers L400k cameras have blocks of mapped memory space known as registers By reading values from the registers yo
82. e offset and offset balance parameters are all set to 0 and shading The description above of the pixel values in test image three is only valid when the correction is disabled Test image three is also useful if you want to see a visual indication of the effects of using DSNU shading correction If you enable test image three and you also enable DSNU shading correction the effects of the DSNU shading correction feature will be visible in the captured test images 3 10 6 Test Image Four Uniform Gray In test image four all pixels will have a value of 64 when the camera is set for an 8 bit output mode When the camera is set a 10 bit output mode all pixels will have a value of 256 Test image four should appear as a uniform gray image Test image four is useful for checking the integrity of the data transmitted by the camera If you capture lines and examine the pixel values in the captured lines the values should be exactly as described above camera is set for an 8 bit output mode and the gain gain balance offset and offset The description above of the pixel values in test image four is only valid when the balance parameters are all set to 0 and shading correction is disabled Test image four is also useful if you want to see a visual indication of the effects of using PRNU shading correction If you enable test image four and you also enable PRNU shading correction the effects of the PRNU shading cor
83. e camera in read mode and closes the file Up to 255 characters can be written with a single binary bulk data write command If the file is larger than 255 characters repeated binary bulk data write commands are required When repeated bulk data write commands are required the file is written sequentially with each write command starting where the previous write stopped This procedure would upload the data in the file to the camera If you wanted to upload a shading value bulk data file from a PC to a camera you would use a similar procedure but you would use the shading value bulk data CSR instead Sample code that illustrates how to upload a bulk data file is available from Basler see Section 4 4 When you upload a bulk data file from the PC to the camera it will overwrite any existing file in the camera that has the same name Basler L400k Configuring the Camera 4 2 3 2 Bulk Data Control and Status Register Details Configuration Set CSR See Section 4 2 3 1 for information about using bulk data control registers Register Base Address 0x2800 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in this register is set out of range Field Name Control Offset 0x0001 Size 1 B
84. e time Gain Offset 13 Live image test image If you are having an image problem try to generate and save live images that show the prob lem Also generate and save test images Please save the images in BMP format zip them and send them to Basler Technical Support Basler L400k 6 11 Troubleshooting 6 12 Basler L400k Revision History Revision History Doc ID Number Date Changes DA00067501 4 June 2004 Initial release of the User s Manual This is a preliminary version DA00067502 2 August 2004 Initial release of the completed User s Manual DA00067503 17 August 2004 Added clarifications to the examples in Section 4 3 1 DA00067504 19 August 2004 Corrected the tolerances in the drawings in Section 5 DA00067505 17 September 2004 Updated max line rate power consumption and housing length speci fications DA00067506 2 December 2004 Updated the edge controlled description in Sections 3 4 1 1 and 3 4 2 1 Updated the guidelines in Section 3 4 1 3 Updated the procedure for generating PRNU shading values in Sec tion 3 9 1 3 and the shading correction guidelines in Section 3 9 1 1 Corrected the descriptions of the FTF field in Sections 4 3 2 1 and 4 3 2 2 Corrected the note box and the table on page 3 22 DA00067507 9 March 2005 Added Section 1 1 indicating the camera version to which this revision of the manual applies Updated the exposure start delay and end delay inform
85. e ul posing 2 14 E edge controlled exposure mode 3 4 3 8 environmental requirements 1 5 error conditions overvoltage iia ee eee eee eee 3 40 parameter error Lo 3 41 exposure time esses 3 4 3 10 exposure time control mode s 3 4 3 10 ExSync controlled exposure explained sic e 3 4 guidelines ee e 3 6 ExSyncsignal sereia ea eee eee ee 2 8 F factory set 12 22 pao ti 3 43 feature control and status registers 4 5 4 12 fill factor EIS RA oe hee es 1 3 F mountadapter 000005 5 5 free run operation explained cerros ere 3 8 guidelines 2 air 3 10 functional description o oo oooo 3 1 G Galli ido eo ese e dene d me 3 11 gain balance er RR ee eee ee 3 13 H heat dissipation ooooooooooooooo 1 5 humidity requirements sess 1 5 l input signals 22 crap Da 2 8 inquiry registers o oo ooooooo 4 5 4 6 integrate enabled 2 20 3 10 interfacing the camera 2 200 2 1 K BIC coat Bee te tee Xn 2 22 L LED up a 3 42 6 1 level controlled exposure mode 3 4 A ent ee E a RATE URS E 1 3 3 2 line valid bit eee eee eee 2 9 2 19 V Index M mounting facilities 5 2 O Offset O 3 14 offset balance 2 055 crire eet eee 3 14 output modes dual separated tap 2 17 dualtap vete DRE IRE 2 14 SUING
86. ead only Description String containing the camera vendor s name The string is zero terminated if less than 20 bytes are needed and unterminated if all 20 bytes are needed Model Information Inquiry Register Base Address 0x0200 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this inquiry register 0x00 The register is not available 0x01 The register is available Field Name Model Info Offset 0x0001 Size 20 Bytes Type Read only Description String containing the camera s model number The string is zero terminated if less than 20 bytes are needed and unterminated if all 20 bytes are needed 4 6 Basler L400k Configuring the Camera Product ID Inquiry Register Base Address 0x0300 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this inquiry register 0x00 The register is not available 0x01 The register is available Field Name Product ID Offset 0x0001 Size 20 Bytes Type Read only Description String containing the camera s product ID number The string is zero terminated if less than 20 bytes are needed and unterminated if all 20 bytes are needed Serial Number Inquiry Register Base Address 0x0400 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read o
87. ead only Description Minimum allowed integer value for the raw gain setting The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the min value Byte 2 High byte of the min value Field Name Raw Max Offset 0x0011 Size 2 Bytes Type Read only Description Maximum allowed integer value for the raw gain setting The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the max value Byte 2 High byte of the max value Basler L400k 4 19 Configuring the Camera Gain Balance CSR Note The gain balance can be set by writing a floating point value to the Absolute Gain Balance field or by writing an integer value to the Raw Gain Balance field Refer to Section 4 2 2 1 for an explanation of the difference between these two fields Register Base Address 0x0E20 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name Absolute Gain Balance Offset 0x0001 Size 4 Bytes Type Read Write Description Writing a floating point value to this field to sets gain balance in dB For example if the value in this field is set to 0 55 the gain balance would be 0 55 dB The gain balance can normally range from 1 00 d
88. ecrease the offset applied to the pixel values from the left half of the sensor and increase the offset applied to the pixel values from the right half As an example assume that you have set the offset on the camera to 10 0 and the offset balance to 1 0 In this case the camera would be operating with a 11 0 offset for the left half of the sensor and a 9 0 offset for the right half Basler L400k Operation and Features 3 6 4 1 Setting the Offset Balance You can set the offset balance with the Camera Configuration Tool Plus CCT or by using binary write commands from within your own application to set the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the Offset Balance Left Right parameter in the Gain 8 Offset parameters group to set the offset balance By Setting CSRs You set the offset balance by writing a value to the Absolute Offset Balance field or to the Raw Offset Balance field of the Offset Balance CSR see page 4 24 Section 4 2 2 explains CSRs and the difference between using the absolute field and the raw field in a CSR Section 4 3 1 explains using read write commands Basler L400k 3 15 Operation and Features 3 16 3 6 5 Clipping If the gain and offset on an L400k camera are set incorrectly high clipping or low clipping can occur High clipping is caused when the combination of gain and offset is set so that the range
89. en pixel At pixels 513 and 514 a black odd pixel is next to a white even pixel To the human eye the gradient appears to be a varying gray field with a white vertical line every 512 pixels Test image one is useful for checking the integrity of the data transmitted by the camera If you capture lines and examine the pixel values in the captured lines the values should be exactly as described above gray level 1 512 1024 1536 2048 even pixel number odd Figure 3 18 Formation of Test Image One Figure 3 19 Test Image One The description above of the pixel values in test image one is only valid when the camera is set for an 8 bit output mode and the gain gain balance offset and offset balance parameters are all set to 0 and shading correction is disabled Basler L400k 3 37 Operation and Features 3 38 3 10 4 Test Image Two Moving Gradient Test image two is formed with a gray scale gradient that ranges from 0 to 255 and repeats every 256 pixels as shown in Figure 3 20 The gradient starts at 0 and steps up that is the gray value of pixel 1 is 0 the gray value of pixel 2 is 1 the gray value of pixel 3 is 2 and so forth The pattern shifts by one pixel each time the ExSync signal or the camera s internal control signal cycles On the second cycle the gray value of pixel 1 is 1 the gray value of pixel 2 is 2 the gray value of pixel 3 is 3 and so forth On the third cycle the gr
90. er 0x00 The register is not available 0x01 The register is available All related settings are OK 0x02 The generation process failed 0x80 A value in the register is set out of range Field Name Generate Offset 0x0001 Size 1 Byte Type Read Write Description Writing an integer value to this field will begin the routine that generates a set of shading correction values 0x00 No generation 0x01 Generate DSNU correction values 0x02 Generate PRNU correction values and do not use DSNU correction during generation 0x03 Generate PRNU correction values and use DSNU correction during generation See Section 3 9 1 for more information about shading correction Basler L400k 4 31 Configuring the Camera 4 32 Dark Noise Cancellation Mode CSR Register Base Address 0x1480 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name Mode Offset 0x0001 Size 1 Byte Type Read Write Description Writing an integer value to this field sets the dark noise cancellation mode 0x00 Dark noise cancellation disabled 0x01 Dark noise cancellation enabled Note In edge controlled mode dark noise cancellation has no effect on the image
91. er is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range 0X81 The setting for the AOI staring pixel conflicts with the setting for the AOI length Field Name Starting Pixel Offset 0x0001 Size 2 Bytes Type Read Write Description Writing an integer value to this field sets the starting pixel for the area of interest AOI fea ture The value for the starting pixel can normally range from 1 0x0001 to 4080 OxOFFO The actual available range may be limited by the way any related parameters are set If the value is set to 1 the starting pixel in the AOI will be pixel 1 If the value is set to 2 the starting pixel in the AOI will be pixel 2 Etc On L402k cameras the AOI Starting Pixel must be set to an odd number The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the starting pixel value Byte 2 High byte of the starting pixel value See Section 3 7 for more information about the AOI feature Field Name Min Offset 0x0003 Size 2 Bytes Type Read only Description Minimum allowed integer value for the starting pixel setting This field is updated to reflect limitations caused by the way any related features are set The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the min value Byte 2 High byte of the min value Field Name Max Offset 0x0005 Size 2 Bytes Type Read only Description M
92. ere are four functions exported by that DLL clSeriallnit Initialize the serial communication for a specific board clSerialRead Read bytes from the camera clSerialWrite Write bytes to the camera clSerialClose Close the serial communication To execute the binary programming commands you can call up the functions exported by the DLL receive one random character on the serial interface We recommend clearing the When the camera is powered on or when a camera reset is performed your PC may serial input buffers in your PC after a camera power on or reset If you are using your camera with an optional Basler Interface Converter k BIC you can use binary commands to configure the camera via the RS 232 serial connection between your PC and the k BIC Basler L400k 4 43 Configuring the Camera 4 44 4 3 1 The Binary Read Write Command Protocol With the binary read write command protocol data is placed into a frame and sent to the camera When the frame is received it is checked for validity If valid the data is extracted from the frame and the command is executed This section describes the basic layout of a binary command frame Figure 4 2 shows a graphical representation of the fields within a basic binary command frame Figure 4 3 shows a graphical representation of the fields within a read command and response The text below the graphics describes each field of the command frame in d
93. erting Camera Link Output to RS 644 with a k BIC On the L400k video data is output from the camera in Camera Link LVDS format and parameter change commands are issued to the camera using RS 644 serial communication via the frame grabber On older cameras video data was output using an RS 644 LVDS format and commands were issued using RS 232 serial communication via the host PC The output from L400k cameras can be converted to the older style of output by using a Basler Interface Converter for k series cameras k BIC The k BIC is a small device that attaches to the L400k with a Camera Link compatible cable For complete information on the k BIC refer to the k BIC Users Manual and the k BIC installation guide DC Power L400k cameras require 12 VDC 10 power The maximum power consumption is approximately 6 0 W for the L401k and 7 0 W for the L402k Also note the information about the 6 pin connector in Section 2 1 3 and about the power cable in Section 2 2 2 NOTICE Making or Breaking Connections Incorrectly Can Damage the Camera 1 Be sure that all power to your camera and to your host PC is switched off before you make or break connections to the camera Making or breaking connections when power is on can result in damage to the camera or to the frame grabber 2 If you can t switch off the power be sure that the input power plug is the last connector that you plug into the camera when making connections and the first connector
94. eset is the equivalent of switching off power to the camera and switching power back on With the CCT With the CCT see Section 4 1 click on Camera in the menu at the top of the CCT window and a drop down list will appear Click on Reset Camera in the drop down list to initiate a reset By Setting CSRs You can initiate a reset by writing a value to the Reset field of the Camera Reset CSR see page 4 33 See Section 4 2 2 for an explanation of CSRs and Section 4 3 1 for an explanation of using read write commands may receive one random character on the serial interface We recommend clearing Whenever the camera is powered on or when a camera reset is performed your PC the serial input buffers in your PC after a camera power on or reset 3 42 Basler L400k Operation and Features 3 15 Configuration Sets A configuration set is a set of values that contains all of Nensrolatiln the parameters needed to control the camera There Memory are two basic types of configuration sets the work ini Volatile emory configuration set and the factory configuration set RAM gt O Work Configuration Set pee Work Set The work configuration set contains the camera s current settings and thus determines the camera s performance that is what your image currently looks like If you use the CCT to change the camera settings or if you change settings by writing to the camera s Figure 3 22 C
95. et for 8 bit output the offset can normally range from 200 0 DN to 200 0 DN in increments of 0 5 When the camera is set for 10 bit output the offset can normally range from 800 0 DN to 800 0 DN in increments of 0 5 The value in this field is a standard IEEE 754 single precision 32 bit floating point number See Section 3 6 3 for more information about offset Field Name Absolute Min Offset 0x0005 Size 4 Bytes Type Read only Description Minimum allowed floating point value for the absolute offset setting The value in this field is a standard IEEE 754 single precision 32 bit floating point number Field Name Absolute Max Offset 0x0009 Size 4 Bytes Type Read only Description Maximum allowed floating point value for the absolute offset setting The value in this field is a standard IEEE 754 single precision 32 bit floating point number Field Name Raw Offset Offset 0x000D Size 2 Bytes Type Read Write Description Writing an integer value to this field sets the offset When the camera is set for 8 bit output the value can normally range from 400 OXFE70 to 400 0X190 When the camera is set for 10 bit output the value can normally range from 1600 OXF9CO to 1600 0X640 The DN of offset that the camera will apply at a given setting in this field is determined by this formula DN raw setting 2 For example if the value in this field is set to 105 0x0069 then DN 105 2 DN
96. etail One Frame i lt a juar Transmit BFS FTF DataLen Address Data BCC BFE 8 bits 8 bits 8 bits Length specified in FTF Length specified in DataLen 8 bits 8 bits Response ACK NAK 8 bits optional Figure 4 2 Representation of a Basic Command Frame and Response BFS FTF DataLen Address Data BCC BFE Transmit g bits 8 bits 8 bits Length specified in FTF Length specified in DataLen 8 bits 8 bits Response ACK NAK 8 bits Response BFS FTF DataLen Data BCC BFE if ACK 8 bits 8 bits 8 bits Length specified in DataLen 8 bits 8 bits optional Figure 4 3 Representation of a Read Command Frame and Response Basler L400k Configuring the Camera BFS Binary Frame Start field Identifies the start of a binary frame Size 1 byte The value of the BFS byte is always 0x01 FTF Frame Type and Format field Identifies the frame type and format Size 1 byte The bits in the FTF field are assigned as follows 7 6 5 4 3 2 1 0 OpCode BCC AddrLen Code The MSB of the FTF field is on the left highest bit of the opcode and the LSB of the field is on the right lowest bit of the address length The value in the OpCode portion of the FTF field defines the function of the binary com
97. eter in the Gain amp Offset parameters group to set the offset By Setting CSRs You set the offset by writing a value to the Absolute Offset field or to the Raw Offset field of the Offset CSR see page 4 22 Section 4 2 2 explains CSRs and the difference between using the absolute field and the raw field in a CSR Section 4 3 1 explains using read write commands 3 6 4 Offset Balance As mentioned in Section 3 1 the pixels in the left half of the CCD sensor and the pixels in the right half of the CCD sensor are processed through two different electronic channels When you change the global offset setting as described in Section 3 6 3 you apply an equal amount of offset to the pixel values from each channel The offset balance setting lets you individually adjust the offset applied to the left half and to the right half of the sensor and thereby adjust the offset balance When the camera is set for 8 bit output the offset balance is adjustable within a range from 20 0 to 20 0 DN digital numbers in increments of 0 5 DN When the camera is set for 10 bit output the range is from 80 0 to 80 0 DN and is adjustable in 0 5 DN increments The default setting is 0 Setting the offset balance to a positive number will increase the offset applied to the pixel values from the left half of the sensor and decrease the offset applied to the pixel values from the right half Setting the offset balance to a negative number will d
98. ether divide the sum for each pixel by two to obtain an averaged gray value for each pixel and output one line of pixels with the averaged gray value for each pixel When the pixel data is transmitted from the camera to the frame grabber decimals are truncated inet Line 199201 202 200 20 fao 201 no 198 aon zn 201 Gray Values in Next Line ojo Gray Values 400 40 sot ari os a aot 402 aoo ano aoojaon Gray Values 400 404 40 41 ot aon ao apt aoo 00 400 401 2 2 2 2 2 2 2 2 2 2 2 2 2 ray Values 200 200 200 20020020020 200 200 200 200 200 Gray Values Figure 3 16 Two line Averaging 3 9 3 1 Changes to the Data Output with Two line Averaging In two line averaging mode the camera outputs pixel data for every second line that is triggered and this line is the averaged line from the last two exposures For example if you are operating in two line averaging mode and you trigger 100 line captures the camera will actually output 50 lines Figure 3 17 on page 3 34 shows the timing diagram that applies when two line averaging and single 10 bit or single 8 bit output are enabled After the first exposure the line valid bit will stay low No pixel data will be output for that line After the second exposure the line valid bit will become high The bits transmitted during the first clock cycle will contain the averaged data from the last two lines for pixel number o
99. f you close the error message window wait several seconds and then click the Refresh button on the CCT the shading values will be properly created If you started the generation of the shading values using binary commands and you are using an ExSync signal to trigger line capture and you are operating the camera at very low line rates you should be aware of a restriction The camera will not ac knowledge or respond to binary commands while it is performing the 16 line cap tures needed to create a set of shading values Once you have issued the binary command to start generating shading values you should wait until the generation process is complete before you issue any further binary commands The time needed to complete the generation process will be equal to 16 times the line period Basler L400k Operation and Features 7 Once 16 lines have been captured the camera calculates the PRNU shading correction values a The camera uses the data from the 16 captured lines to calculate an average gray value for each pixel in the line b The camera finds the pixel with the highest average gray value in the line c For each of the other pixels in the line the camera determines the additional gain that would be needed to make the pixel s average value equal to the average value for the highest pixel d The camera creates a set of PRNU shading correction values that contains the calculated gain adjustments The set of PRNU values
100. ge Field Name Absolute Offset Balance Offset 0x0001 Size 4 Bytes Type Read Write Description Writing a floating point value to this field sets the offset balance in DN digital numbers For example if the value in this field is set to 10 5 the offset balance would be 10 5 DN When the camera is set for 8 bit output the offset balance can normally range from 20 0 DN to 20 DN in increments of 0 5 When the camera is set for 10 bit output the offset balance can normally range from 80 0 DN to 80 DN in increments of 0 5 The value in this field is a standard IEEE 754 single precision 32 bit floating point number See Section 3 6 4 for more information about offset balance Field Name Absolute Min Offset 0x0005 Size 4 Bytes Type Read only Description Minimum allowed floating point value for the absolute offset balance setting The value in this field is a standard IEEE 754 single precision 32 bit floating point number Field Name Absolute Max Offset 0x0009 Size 4 Bytes Type Read only Description Maximum allowed floating point value for the absolute offset balance setting The value in this field is a standard IEEE 754 single precision 32 bit floating point number Field Name Raw Offset Balance Offset 0x000D Size 2 Bytes Type Read Write Description Writing an integer value to this field sets the offset balance When the camera is set for 8 bit output the value can normally range from 4
101. ge state and discards any more incoming bytes The camera remains in this state until it sees a new BFS Read Commands In the normal case when a read command is sent to the camera the camera responds with an ACK and a returned frame The returned frame will contain the data requested If the camera receives a read command with an unknown or invalid address in the Address field of the frame it will respond with an ACK but will send no frame If the host sends a read command and gets no ACK NAK the host can assume that no camera is present or the camera is in a garbage state for some reason If the host sends a read command and gets an ACK NAK but does not receive a frame within 500 ms the host can assume that there was a problem with the read command Write Command In the normal case when a write command is sent to the camera the camera responds with an ACK If the camera receives a write command with an unknown or invalid address in the Address field of the frame it will respond with an ACK but will not perform the write After a write command has been issued by the host the host can verify the write by issuing a corresponding read command and checking that the returned data is as expected unless the address is write only The host can read the Camera Status fields in the Camera Status inquiry register see page 4 9 and check the returned data to see if an error condition has been detected For many of the
102. gnal will go high when each exposure begins and go low when the exposure ends As shown in the schematic in Section 2 3 the IntEn signal is available on pins 24 and 11 of the 26 pin connector on the L400k The integrate enabled signal can not be easily accessed if a 3M Camera Link Cable is used between the camera and the frame grabber However a Camera Link cable which allows easy access to this signal is available from Basler as a stock item part 100013041 for a 3 meter cable and part 100013042 for a 5 meter cable In the Basler cable the wires which carry the integrate enabled signal from the camera are not attached to the pins in the frame grabber end of the cable Instead the wires are unterminated and are folded back inside of the connector housing on the frame grabber end see Figure 2 10 If you open the connector housing you can locate the wires and use them to access the integrate enabled signal As shown below a blue wire carries the positive signal and a gray wire carries the negative signal The wires require a 100 Ohm termination frame grabber the RS 644 LVDS transmitter for the integrate enabled signal will be connected to an RS 644 LVDS transmitter in the frame grabber as shown in the schematic in Section 2 3 Because the transmitter in the camera is a low current source and because the opposing transmitter in the frame grabber is typically short circuit protected this configuration will not cause damage to the camera o
103. h the Camera Configuration Tool Plus CCT or by using binary write commands from within your own application to set the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the Two line Averaging parameter in the Image Enhancement parameters group to enable or disable two line averaging By Setting CSRs You enable or disable two line averaging by writing a value to the Mode field of the Two line Averaging CSR see page 4 32 Section 4 2 2 explains CSRs Section 4 3 1 explains using read write commands Basler L400k 3 35 Operation and Features 3 10 Test Images 3 36 The test image mode is used to check the camera s basic functionality and its ability to transmit an image via the video data cable Test images are especially useful for service purposes and for failure diagnostics In test mode the image is generated with a software program and the cam era s digital devices and does not use the optics CCD sensor or ADCs Four test images are available 3 10 1 Guidelines When Using Test Images When using a test image take the following guidelines into account f the camera is set for an exposure mode that uses an ExSync signal the ExSync signal must be present and must toggle in order to output a line on the test image Multiple transi tions of the ExSync signal will produce a two dimensional image as shown in Figure 3 19 or Figure 3 21 fthe camera is set for Free
104. hancement Stamp window and click the sign beside each group a ia The camera parameter names always appear in A the left column of the list The current setting for E ER each parameter appears in the right column By default a Parameter Description window is displayed In this window you can find basic information on the selected parameter and if present on the dependencies that may exist between the selected parameter and other 1Parameter Description parameter s Mes video data output modes available on L401k cameras Modifiable parameter settings and available Single 8 Bit mode commands appear in black Read only settings Bingle 10 bitmode and unavailable commands appear in gray In Single 8 Bit mode on each cycle of the pixel clock the camera transmits data for a single pixel at 8 bit depth a line If you make a change to one of the parameter valid bikend a data valla e settings that change will immediately be In Single 10 Bit mode on each cycle of the pixel clock the camera transmits data for a single pixel at 10 bit depth a line transmitted from the CCT to the camera s work valid bit and a data valid bit E set Because the parameters in the work set control the current operation of the camera you Figure 4 1 Output Mode Group will see an immediate change in the camera s operation By default the CCT automatically updates the displayed settings every 5 se
105. he bulk data CSR for shading values Section 4 2 3 explains the bulk data CSRs and explains how to use the CSRs to save the shading values to a file Section 4 3 1 explains using read write commands 3 9 1 5 Activating Saved DSNU and PRNU Shading Correction Values As explained in Section 3 9 1 4 you can save a set of DSNU and PRNU shading values to a file in the camera s non volatile memory Once you have saved a set of shading values to a file you can choose to activate the saved file When you activate the saved shading value file two things happen The DSNU and PRNU values from the saved file are copied into the camera s volatile mem ory If you have shading correction enabled the camera will now use the shading values that were copied into the volatile memory A link is created between the saved file and the volatile memory The DSNU and PRNU shading values from the activated saved file will automatically be copied into the volatile memory whenever the camera is powered up or reset Activating a Saved Shading Value File You can activate a saved shading value file with the Camera Configuration Tool Plus CCT or by using binary read write commands from within your own application to set the camera s bulk data control and status registers CSRs With the CCT With the CCT see Section 4 1 when you use the Create Shading parameter to save the shading values to a file the saved file is automatically activated
106. iagrams are not to scale Figure 2 5 L400k Single 10 or 8 Bit Output Mode with Programmable Exposure Basler L400k 2 13 Camera Interface 2 14 2 5 5 2 Operation in Dual Output Mode 10 or 8 Bit Depth L402k Only In dual 10 bit mode on the L402k the Camera Link pixel clock operates at 30 MHz On each clock cycle the camera transmits data for two pixels at 10 bit depth a line valid bit and a data valid bit The assignment of the bits is shown in Table 2 4 The Camera Link pixel clock is used to time data sampling and transmission As shown in Figures 2 6 and 2 7 the camera samples and transmits data on each rising edge of the pixel clock The line valid bit indicates that a valid line is being transmitted and the data valid bit indicates that valid pixel data is being transmitted Pixel data is only valid when the line valid and data valid bits are both high Operation in dual 8 bit mode is similar to dual 10 bit mode except that the two least significant bits are dropped and only 8 bits of data per pixel are transmitted The data sequence outlined below along with Figures 2 6 and 2 7 describes what is happening at the inputs to the Camera Link transmitter in the camera Note that the timing used for sampling the data at the Camera Link receiver in the frame grabber varies from device to device On some receivers data must be sam pled on the rising edge of the pixel clock receive clock and on others it must be sampled on
107. ibed in this manual An easy way to see the camera version ID number for an L400k camera is by using the CCT To see the camera version ID number 1 Double click the CCT icon on your desktop or click Start gt All Programs gt Basler Vision Technologies gt CCT CCT The CCT window will open and the software will connect to your camera 2 Scroll down until you find the Camera Information group heading If there is a plus sign beside the Camera Information group heading click on the plus sign to show the list of parameters in the group 3 Find the parameter called Camera Version As shown in Figure 1 1 the last two numbers of this parameter are the camera version ID number Y Basler CCT L401k File Camera View Options Help clsernat Port O hed Refresh Shading Value File User Set Files Camera Information Vendor Name Model Name Product ID Serial Numbe Camera Versi Microcontroller 01 10 02 02 03 02 The camera version ID number appears here Figure 1 1 CCT Window Example L401k D You can also access the camera version ID number by using binary commands to read the Camera Version Inquiry register See Section 4 2 1 for an explanation of inquiry registers and Section 4 3 for information on using binary commands Basler L400k 1 1 Introduction 1 2 1 2 Camera Models L400k series line scan ca
108. in Guidelines When you are working with a parameter that can be set as either raw or absolute there are two important things to keep in mind Basler L400k You do not need to set both the raw field and the absolute field Setting just one of the fields is sufficient and you can choose to set whichever field best suits your needs If you are setting a parameter by writing to the absolute field the value in the absolute field must be the equivalent of entering a value in the raw field Lets use the gain parameter again as an example Using the formula from the previous page we can calculate the dB of gain that the camera would produce for three different settings in the raw gain field of the gain CSR Raw Gain Value Setting Resulting Gain 300 1 38 dB 301 1 41 dB 302 1 44 dB This means that if you are writing a value to the absolute field a value of 1 38 1 41 or 1 44 would be valid because they are the equivalent of writing 300 301 or 302 to the raw field Writing a value of 1 42 in the absolute field for example would not be valid because it is not the equivalent of any value you could write in the raw field So what happens if you write an invalid value to the absolute field This is not really a problem because the camera will automatically change the value you entered to the nearest valid value For example if you write 1 42 to the raw gain field the camera will automatically change the value to 1 41 Because
109. ist of parameter settings should appear If this is the first time that you are using the tool you will see an empty window with Go to the RS 644 serial No gt communications troubleshooting chart a drop down menu at the top which says No port selected In this case use the drop down menu to select the RS 644 port that you want to use RS 644 ports are identified in the list by a port number and a dll library name Once you select the correct port the list of parameter settings should appear Did the list of parameter settings appear Yes Are you controlling the camera with an ExSync signal or is the camera in free run Did you set up free run using the CCT or with binary commands ExSync signal Config Binary Tool Commands Check the setup on your frame grabber and make sure that the ExSync signal is not too short The period of the ExSync signal must not be lower than lower than the minimum shown in Correct Table 3 1 the On many frame grabbers the period of settings the ExSync signal is adjusted by changing a setting for the line rate Your line rate should not exceed the limit given in Section 1 3 Is the ExSync period OK Check to make sure that The exposure time is set no lower than 10 0 us The line period is set no lower Correct than the values shown in Table No gt the 3 4 Are the settings OK settings Yes Yes Go to the Swi
110. ite to registers make sure you check the min max and increment fields of each register before you set the parameter values Setting the values within the min and max and using the specified increments will avoid parameter errors Basler L400k 3 41 Operation and Features 3 12 Checking the Camera Status During operation L400 series cameras perform a continuous series of self checks You can view the current camera status in several ways by using the Camera Configuration Tool Plus see Section 4 1 Check the Camera Status parameter in the Camera Information parameters group to see if any error codes are present by using binary read write commands from within your own application to read the value in the Camera Status field of the Camera Status inquiry register see page 4 9 Section 4 2 1 explains inquiry registers and Section 4 3 1 explains using read write commands by checking the LED on the back of the camera If certain error conditions are present the LED will blink see Section 6 1 3 13 Status LED The L400k has a status LED on the back of the camera The LED is used to indicate that power is present and to indicate an error condition if one is detected See Section 6 1 for details 3 14 Resetting the Camera You can initiate a camera reset with the Camera Configuration Tool Plus CCT or by using binary write commands from within your own application to set the camera s control and status registers CSRs A r
111. ixel data is no longer being transmitted Figure 2 8 shows the data sequence when the camera is operating in edge controlled or level controlled exposure mode and Figure 2 9 shows the data sequence when the camera is operating in programmable exposure mode The data sequence assumes that the camera is operating in 10 bit mode If the camera is operating in 8 bit mode only 8 bits of data per pixel will be transmitted Basler L400k 2 17 Camera Interface ExSync A A A e MUN AU e a Signal A A A E H Line Valid 1k Data Valid koo Pixel Clock a DOROOOOOO OK XDD OOOO i ast NOE X eX KN XNA NS Xn 545A DAT XD BA DA NX NB NE NEY NEE X X X N 4080 Timing diagrams are not to scale Figure 2 8 L402k Dual Separated 10 or 8 Bit Output Mode with Edge or Level controlled Exposure 2 18 Basler L400k Camera Interface end of e programmed time A I 2 2 us Line Valid Data Valid et UTRTUTUIUUTUTURT UU UU UU Pixel A NN Me ooo KEKE DOO tite COCOS XE O 00O N 4080 Timing diagrams are not to scale Figure 2 9 L402k Dual Separated 10 Bit or Dual 8 Bit Output Mode with Programmable Exposure Basler L400k 2 19 Camera Interface 2 20 2 5 6 Integrate Enabled Signal An RS 644 LVDS output signal called Integrate Enabled IntEn is available on L400k cameras The integrate enabled signal indicates that an exposure is taking place The si
112. lage radio lectrique Life Support Applications These products are not designed for use in life support appliances devices or systems where malfunction of these products can reasonably be expected to result in personal injury Basler customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Basler for any damages resulting from such improper use or sale Warranty Note Do not open the housing of the camera The warranty becomes void if the housing is opened All material in this publication is subject to change without notice and is copyright Basler Vision Technologies Contacting Basler Support Worldwide Europe Basler AG An der Strusbek 60 62 22926 Ahrensburg Germany Tel 49 4102 463 515 Fax 49 4102 463 599 bc support europe baslerweb com Americas Basler Inc 855 Springdale Drive Suite 203 Exton PA 19341 U S A Tel 1 610 280 0171 Fax 1 610 280 7608 bc support usa baslerweb com Asia Basler Asia Pte Ltd 8 Boon Lay Way 03 03 Tradehub 21 Singapore 609964 Tel 65 6425 0472 Fax 65 6425 0473 bc support asia baslerweb com www baslerweb com Contents Table of Contents 1 Introduction 1 1 Document Applicability llle 1 1 1 2 Camera Models 4 boy tah oe oad eek ee xk Esse DAE 1 2 1 3 Performance Specifications 0 0 2 2 llle 1 3 1 4 Spectral Response 200 re 1 4 1 5 E
113. larity of the input power can seriously damage the camera Refer to the user s manual for more detailed information about the input power requirements NOTICE Making or Breaking Connections Incorrectly Can Damage the Camera 1 Be sure that all power to your camera and to your host PC is switched off before you make or break connections to the camera Making or breaking connections when power is on can result in damage to the camera or to the frame grabber 2 If you can t switch off the power be sure that the input power plug is the last connector that you plug into the camera when making connections and the first connector that you unplug from the camera when breaking connections Basler L400k 2 3 Camera Interface Connector Pin Numbering Figure 2 2 shows the pin numbering for the connectors on the back of the camera VAN 2 659 5 D O 13 1 a Ele 26 14 Drawing is not to scale Figure 2 2 Pin Numbering 2 1 3 Connector Types 26 Pin Connector The 26 pin connector on the camera is a female 0 050 inch MDR connector as called for in the Camera Link Specification 6 Pin Connector The 6 pin connector on the camera is a Hirose micro miniature locking receptacle part HR10A 7R 6PB or the equivalent The recommended mating connector is the Hirose micro miniature locking plug part 4 HR10A 7P 6S A plug of this type will be shipped with each camer
114. lay End Delay Edge controlled 145 2 0 5 0 0 us 145 2 0 5 0 0 us 72 6 0 5 0 0 us 72 6 0 5 0 0 us Table 3 7 Exposure Start and End Delays in Edge controlled Mode Enabling Dark Noise Cancellation You can enable the dark noise cancellation feature with the Camera Configuration Tool Plus CCT or by using binary write commands from within your own application to set the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the Dark Noise Cancellation parameter in the Image Enhancement parameters group to enable dark noise cancellation By Setting CSRs You enable dark noise cancellation by writing a value to the Mode field of the Dark Noise Cancellation CSR see page 4 32 See Section 4 2 2 for an explanation of CSRs and Section 4 3 1 for an explanation of using read write commands Basler L400k Operation and Features 3 9 3 Two line Averaging With the two line averaging feature gray values from two line captures are averaged and reported out as a single line The feature is designed to increase the signal to noise ratio for applications that require only half of the maximum line rate In two line averaging mode the signal to noise ratio will typically increase by 3 dB The feature can be used with both single and dual pixel output As shown in Figure 3 16 the camera will capture two lines add the gray values of each pixel tog
115. lected The area of interest feature lets you specify a portion of the CCD array and during operation only the pixel information from the specified portion of the array is signaled as valid to the frame grabber Pixels outside of the AOI are transmitted to the frame grabber as black pixels and are signaled to the grabber as invalid The size of the area of interest is defined by declaring a starting pixel and a length in pixels see Figure 3 10 For example if you specify the starting pixel as 10 and the length in pixels as 15 the camera will output all of the pixel values for the array but only pixels 10 through 24 will be signalled as valid Starting Pixel Line of Pixels 7 inthe cep L213 47s 6 718 homanasen Length in Pixels Figure 3 10 Area of Interest When the area of interest feature is used the number of transmitted pixels does not decrease and the maximum achieveable line rate does not increase Valid pixels are signalled using the line valid and data valid bits On the pixel clock cycle where AOI data transmission begins the line valid and data valid bits will become high After the pixel clock cycle where AOI data transmission ends the line valid and data valid bits will become low For example if you specify the starting pixel as 5 and the length as 4072 the line valid and data valid bits will become high on the clock cycle where pixel 5 is transmitted see Figures 3 11 and 3 12 After the 4072 pixels in
116. ler see Section 4 4 Basler L400k 4 39 Configuring the Camera 4 40 Uploading a Bulk Data File from a PC to the Camera You can upload a bulk data file from your host PC to the camera s non volatile memory As an example assume that you previously downloaded a saved configuration set file named UserSet02 to your PC Also assume that you now want to upload this file from your host PC to a camera To do so you would follow this procedure 1 2 Use a binary write command to write the file name UserSet02 to the Name field of the configuration set bulk data CSR Use a binary write command to set the value of the Control field in the configuration set bulk data CSR to 0x03 Setting the value to 0x03 places the camera in write mode Use a binary command to do a bulk data write to the camera The binary write command must have the following characteristics OpCode 0x04 This OpCode makes the command a bulk data write DataLen the number of bytes to be written Max is 255 characters Address 0x281B Base address for the configuration set bulk data CSR plus the offset for the Data field Data Bytes to be written Repeat step 3 as many times as needed to write all of the data from the PC to the camera Close the bulk data file in the camera To close the file use a binary write command to set the value of the Control field in the configuration set bulk data CSR to 0x02 Setting the value to 0x02 places th
117. mand that is whether it is a read command or a write command The following OpCodes are available OpCode Function 0b00000 This is a write command used to write a single setting to the camera 0b00001 This is a read command used to read a single setting from the camera 0b00010 This is a read response frame without an address field The AddrLen bits are don t care 0b00100 This is a bulk write command used to upload a file into the camera 0b00101 This is a bulk read command used to download a file from the camera 0b00110 This is a bulk read response frame without an address field The AddrLen bits are don t care The BCC Code portion of the FTF field indicates the presence of a Block Check Character BCC The use of a BCC is optional BCC Code Function 0b0 This frame and also the response frame contains no BCC field 0b1 This frame and also the response frame contains a BCC field Basler L400k 4 45 Configuring the Camera DataLen Address Data 4 46 The AddrLen portion of the FTF field indicates the size of the command and status register CSR address to which the command is being sent AddrLen Length of the Address Field 0b00 16 bits 2 bytes 0b01 32 bits 4 bytes 0b10 48 bits 6 bytes 0b11 64 bits 8 bytes On L400k cameras all CSR addresses are 16 bits
118. meras are available in different versions As shown in Table 1 1 the version depends on the line rate and output format All models are monochrome Throughout the manual the camera will be called theL400k Passages that are only valid for a specific version will be so indicated Version Camera Link Max Output Pixel Clock Line Rate L401k 30 MHz 7 1 kHz Single tap one pixel per clock cycle L402k 30 MHz 14 1 kHz Single tap when used one pixel per clock cycle with dual tap or Dual tap two pixels per clock cycle or Dual tap separated two pixels per clock cycle Table 1 1 Versions of the L400k Camera Basler L400k Introduction 1 3 Performance Specifications Specifications L401k L402k Sensor Kodak KLI 4104 Linear CCD Number of Pixels 4080 Pixel Size 5 0 um x 10 0 um 10 0 um pitch Fill Factor 10096 Spectral Response 350 1050 nm peak at 660 nm See Figure 1 2 Camera Link Pixel Clock Speed 30 MHz Maximum Data Rate 28 MPixels s 56 MPixels s Maximum Line Rate 7 1 kHz 14 1 kHz when used with dual tap and dual separated tap Minimum Line Rate 10 Hz in free run No minimum when an ExSync signal is used For proper operation exposure time should not be less than 10 of the line period Video Output Type Camera Link LVDS Base configuration RS 644 LVDS when used with an optional Basler Interface Conve
119. mmable mode In edge controlled mode charge is accumulated over the entire period of the ExSync signal and a rising edge of ExSync triggers the readout of accumulated charges from the sensor elements to the CCD shift registers In level controlled mode charge is accumulated when the ExSync signal is low and a rising edge of ExSync triggers the readout In programmable mode exposure time can be programmed to a predetermined time period In this case exposure begins on the rising edge of ExSync and accumulated charges are read out when the programmed exposure time ends A free run mode that allows the camera to operate without an ExSync signal is also available In free run mode the camera generates its own internal control signal and the internal signal is used to control exposure and charge readout When operating in free run the camera outputs lines continuously At readout accumulated charges are transported from the light sensitive sensor elements pixels to the CCD shift registers The charges from the pixels in the left half of the sensor and the charges from the pixels in the right half of the sensor are handled by separate shift registers as shown in Figure 3 1 As charges move out of the shift registers they are converted to voltages proportional to the size of each charge Shifting is clocked according to the camera s internal data rate The voltages moving out of each shift register are digitized by a 14 bit analog to digital converte
120. n but we do not recommend applying an in put voltage greater than 13 2 VDC If an input voltage greater than 14 5 VDC is ap plied to the camera the camera will automatically switch off the internal power applied to the CCD sensor so that the sensor will be protected In this situation you will still be able to communicate with the camera and the camera will still be able to transmit test images however no live images can be generated Basler L400k Troubleshooting 6 2 Troubleshooting Charts The following pages contain several troubleshooting charts that can help you find the cause of problems users sometimes encounter The charts assume that you are familiar with the camera s features and settings and with the settings for your frame grabber If you are not we suggest you review the manuals for your camera and frame grabber before you troubleshoot a problem 6 2 1 No Image Use this chart if you see no image at all when you attempt to capture an image with your frame grabber in this situation you will usually get a message from the frame grabber such as time out If you see a poor quality image a completely black image or a completely white image use the chart in Section 6 2 2 Always switch off power to the system before making or breaking any connection Connect the power source to the camera and then check the LED on the back of the camera Yes Is the LED lit constantly Use a voltmeter to check the p
121. ne On the second cycle of the pixel clock the line valid bit will be high The bits transmitted dur ing this clock cycle will contain the averaged data for pixel number two This pattern will continue until all of the pixel data for the line has been transmitted After all of the pixels have been transmitted the line valid will become low indicating that valid pixel data is no longer being transmitted After the third exposure the line valid bit will stay low After the fourth exposure the line valid bit will become high and so on Basler L400k 3 33 Operation and Features epojN indio ejBuis Buibelany aul om ym jndino geq 1 anll SSZ UOND9S ees AJA 490 9 uoee uo SJSXIA OM JO ejep SHLUSUE eJeuleo y pasn si epoui jndjno pejeJedes enp Jo jenp usym g g pue g suon9as ees ogor ue y sse Jo ajou aq pjnoo y pesn ale sanjeay duiejs pue Ov ay usym 080p N Z PUE seur Woy ejeq Jexid peBele v geq DODO TNO ODT A OOTO MD ODOODODODOOXDOD s pabelany A A ETE T PIIEA eur 1H eubis DU Sx3 eur eunsodx3 ft __ z eur eunsodx3 g aur7 eunsodx3 Basler L400k 3 34 Operation and Features 3 9 3 2 Changes to the Maximum Line Rate Use of the two line averaging feature has an effect on the camera s maximum achievable line rate See Section 3 4 3 9 3 3 Enabling Disabling Two line Averaging You can enable or disable two line averaging wit
122. ng Pixel CSR see page 4 26 You set the AOI length by writing a value to the Length field of the AOI Length CSR see page 4 27 See Section 4 2 2 explains CSRs and Section 4 3 1 explains using read write commands On L402k cameras the AOI Starting Pixel must be set to an odd number and the AOI Length must be set to an even number In normal operation the camera is set to use all of the pixels in the array To use all of the pixels the starting pixel should be set to 1 and the length in pixels to 4080 See Section 3 8 for information about how the camera will operate if the AOI feature and the stamp feature are both enabled Basler L400k 3 19 Operation and Features 3 8 Stamp The stamp feature is not available when the dual separated video data output mode see Section 2 5 5 3 is selected The stamp feature provides the user with information about each captured line such as the sum of the pixel values in the line and the contrast value of the line When the stamp feature is enabled 16 extra stamp pixels are added to the end of each transmitted line as shown in Figure 3 13 and Figure 3 14 Each stamp pixel carries an 8 bit value that conveys information about the transmitted line a MORON Ma Ow Ww WAL Wo MA MEME M E EU RS ExSync A A OES te ae ee ee ne ror Signal Mose EE S PNTE A cost MOE E S 14 Line Valid Data Valid Pixel Clock Pixel C X X X X1X2X3X X4078X4079X4080X st X 52 X 583 X X
123. ng the data at the Camera Link receiver in the frame grabber varies from device to device On some receivers data must be sam pled on the rising edge of the pixel clock receive clock and on others it must be sampled on the falling edge Also some devices are available that allow you to se lect either rising edge or falling edge sampling Please consult the data sheet for the receiver you are using for specific timing information Video Data Sequence When the camera is not transmitting valid data the line valid and data valid bits transmitted on each cycle of the pixel clock will be low Once the camera has completed line acquisition it will begin to send valid data e On the clock cycle where pixel data transmission begins the line valid and data valid bits will become high Ten of the bits transmitted during this clock cycle will contain the data for pixel number one Onthe second cycle of the pixel clock the line valid and data valid bits will be high Ten of the bits transmitted during this clock cycle will contain the data for pixel number two Onthe third cycle of the pixel clock the line valid and data valid bits will be high Ten of the bits transmitted during this clock cycle will contain the data for pixel number three This pattern will continue until all of the pixel data for the line has been transmitted A total of 4080 cycles After all of the pixels have been transmitted the line valid and da
124. nly Description Each bit in this field specifies an error condition see table below Bit O is the least signifi cant bit If a bit is set to 1 the error condition assigned to that bit is present If the bit is set to 0 the error is not present w et Description A binary command with no BFS was received see Section 4 3 1 A byte time out has occurred see Section 4 3 1 1 A binary command with an invalid OpCode was received see Section 4 3 1 A binary command with no BFE was received see Section 4 3 1 A binary command with an incorrect BCC was received see Section 4 3 1 A binary command with an address error was received see Section 4 3 1 Reserved An unknown error has occurred NO of WBN o Basler L400k 4 11 Configuring the Camera 4 2 2 Feature Control and Status Registers The feature control and status registers CSRs let you set the parameters for camera features such as exposure mode gain offset and the AOI These registers also let you check the current parameter settings and the status for each feature Each feature has one or more CSRs associated with it The fields within a feature s CSR s are used to control how the feature operates By using binary write commands to write to fields within a feature s CSR s you can change the parameter settings for the feature By using binary read commands you can determine the current setting for the parameters and get information about the feat
125. nly Description The integer value in this field indicates the status of this inquiry register 0x00 The register is not available 0x01 The register is available Field Name Serial Number Offset 0x0001 Size 20 Bytes Type Read only Description String containing the camera s serial number The string is zero terminated if less than 20 bytes are needed and unterminated if all 20 bytes are needed Camera Version Inquiry Register Base Address 0x0500 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this inquiry register 0x00 The register is not available 0x01 The register is available Field Name Camera Version Offset 0x0001 Size 3 Bytes Type Read only Description The value in this field indicates the camera s version information The bytes in the field are interpreted as follows Byte 1 Low byte of the camera version BCD coded Byte 2 High byte of the camera version BCD coded Byte 3 Register layout ID BCD coded Basler L400k 4 7 Configuring the Camera 4 8 Microcontroller Firmware Version Inquiry Register Base Address 0x0700 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this inquiry register 0x00 The register is not available 0x01 The register is available
126. nsferred on the rising edge of ExSync see Figure 3 2 The edge controlled mode will give you the best performance in terms of signal to noise ratio ExSync Period lt gt Exposure ExSync Line Read Out Figure 3 2 ExSync Edge Controlled Mode n ExSync level controlled mode the exposure time is determined by the time between the falling edge of ExSync and the next rising edge The pixels are exposed and charge is accu mulated only when ExSync is low The line is read out and transferred on the rising edge of the ExSync signal see Figure 3 3 ExSync Period lt gt Exposure ExSync Line Read Out Figure 3 3 ExSync Level controlled Mode Basler L400k Operation and Features n ExSync programmable mode the rising edge of ExSync triggers exposure and charge accumulation for a pre programmed period of time The line is read out and transferred at the end of the pre programmed period The falling edge of ExSync is irrelevant see Figure 3 4 A parameter called Exposure Time is used to set the length of the pre programmed exposure period ExSync Period J Exposure Time Line Read Out Figure 3 4 ExSync Programmable Mode 3 4 1 2 Selecting an ExSync Exposure Mode amp Setting the Exposure Time You can select an ExSync exposure time control mode and set the exposure time for the ExSync programmable mode with the Camera Configuration Tool Plus
127. ntation in the L400k The schematic in Figure 2 3 shows the interface for L400k cameras and a typical implementation for the frame grabber interface The L400k uses a National Semiconductor DS90CR285 as a Camera Link transmitter For a Camera Link receiver we recommend that you use the National Semiconductor DS90CR286 the National Semiconductor DS90CR286A or an equivalent Detailed data sheets for these components are available at the National Semiconductor website www national com The data sheets contain all of the information you need to implement Camera Link including application notes Note that the timing used for sampling the data at the Camera Link receiver in the frame grabber varies from device to device On some receivers TTL data must be sampled on the rising edge of the receive clock and on others it must be sampled on the falling edge Also some devices are available that allow you to select either rising edge or falling edge sampling Please consult the data sheet for the receiver you are using for specific timing information The L400k uses a National Semiconductor DS90LV048A differential line receiver to receive the RS 644 camera control input signals and the serial communication input signal defined in the Camera Link specification A DS90LV011A differential line transmitter is used to transmit the serial communication output signal defined in the specification Detailed spec sheets for these devices are a
128. ntrolled mode will give you the best performance in terms of signal to noise ratio Exposure Start Delay When an exposure is triggered by the ExSync signal the actual start of exposure will be delayed This is commonly referred to as an exposure start delay The exposure start delay includes two components the transfer gate time and the setup time These times vary depending on the camera model and the expose mode you are using Table 3 2 shows the transfer gate time and the setup time for each camera model and exposure mode combination For a given combination of camera model and exposure mode Basler L400k Start Delay Transfer Gate Time Setup Time Operation and Features L401k L402k Exposure Mode Transfer Gate Time Setup Time Transfer Gate Time Setup Time Level controlled 0 000 us lt 0 5 us 0 000 us lt 0 5 us Programmable 0 000 us lt 0 5 us 0 000 us lt 0 5 us Edge controlled 3 333 us 0 5 us 1 666 us X 0 5 us Table 3 2 Exposure Start Delay Components Exposure End Delay When an exposure is triggered by the ExSync signal the actual end of exposure will be delayed This is commonly referred to as an exposure end delay The exposure end delay includes two components the transfer gate time and the setup time These times vary depending on the camera model and the expose mode you are using Table 3 2 shows the transfer gate time and the setup time for each camera model and exposu
129. nvironmental Requirements llle ellen 1 5 1 5 1 Temperature and Humidity llis 1 5 1 5 2 Heat Dissipation 0 000000 1 5 1 6 Precautions 2 2 vo cewek net ee aes eee he ee eee SEPT dad 1 6 2 Camera Interface 2 1 Connectioris reus ees Ado aan ee UR ERA eo ee Le oe 2 1 2 1 1 General Description raid eroaa a Gaana a a a al n A 2 1 2 1 2 Pin Assignments and Pin Numbering ooccccccccco 2 2 2 1 3 Connector TypeS resas e d koi E e ee eee 2 4 2 2 Cable Information nanana aana aaan 2 5 2 2 1 Camera Link Cable nnana anaana 2 5 2 2 2 Power Cable At AA Re ati 25 2 3 Camera Link Implementation in the L400k ooooocccccoo o 2 6 2 4 Input Signals A e ica 2 8 2 4 1 ExSync Controls Line Readout and Exposure Time 2 8 2 9 Output signalS viciosa A A RA 2 9 2 5 1 Pixel Clock iae e tt sane a A a A ERES A EE EE 2 9 2 9 2 Line Valid Biter ar t nazan rr la Waa ae a rt Pasce Tg Bee dew grin tela 2 9 2 5 9 Data Valid Bits a ERENdeta RE UEM EON 2 9 2 54 Video Data ooo a e ur etd oS e s 2 10 2 5 5 L400k Video Data Output Modes oooococcocococc 2 12 2 5 5 1 Operation in Single Output Mode 10 or 8 Bit Depth 2 12 2 5 5 2 Operation in Dual Output Mode 10 or 8 Bit Depth LA02k Only 2 14 2 5 5 3 Operation in Dual Separated Output Mode 10 or 8 Bit Depth L402k Only struere eR RR LESER ERRORES 2 17 2 5 6 Integrate Enabled Signal
130. oaded into volatile memory after a reset or a power up Sample code that illustrates how to activate a saved bulk data file is available from Basler see Section 4 4 If you want to activate the factory configuration set file use the procedure de scribed above and use FactorySet as the file name Activating a Saved Shading Value File The process of activating a saved shading value file accomplishes two things t copies the values from the saved file into the camera s volatile memory This means that the values will now be actively used by the camera It creates a link to the activated file If the camera is reset or if it is powered off and then back on the values from the activated file will be loaded into volatile memory of the camera and actively used by the camera As an example assume that the camera already has a saved shading value file named ShadingValues and that you want to activate this file To do so you would follow this procedure 1 Use a binary write command to write the file name ShadingValues to the Name field of the shading value bulk data CSR see page 4 42 2 Use a binary write command to set the value of the Control field in the shading value bulk data CSR to 0x05 Setting the value to 0x05 initiates an activate function This procedure would find the ShadingValues file in the non volatile memory and would copy the values in the file into the camera s volatile memory It would al
131. ock Pixel Clock Pixel Clock Pixel Clock Table 2 4 Bit Assignments Dual Output Mode Dual Separated Output Mode Basler L400k 2 11 Camera Interface 2 5 5 L400k Video Data Output Modes L401k cameras can operate in single 10 bit or single 8 bit output mode L402kcameras can operate in single 10 bit single 8 bit dual 10 bit dual 8 bit dual separated 10 bit or dual separated 8 bit output mode 2 5 5 1 Operation in Single Output Mode 10 or 8 Bit Depth In single 10 bit mode the Camera Link pixel clock operates at 30 MHz On each clock cycle the camera transmits 10 bits of pixel data a line valid bit and a data valid bit The assignment of the bits is shown in Table 2 3 The Camera Link pixel clock is used to time data sampling and transmission As shown in Figures 2 4 and 2 5 the camera samples and transmits data on each rising edge of the pixel clock The line valid bit indicates that a valid line is being transmitted and the data valid bit indicates that valid pixel data is being transmitted Pixel data is only valid when the line valid and data valid bits are both high Operation in single 8 bit mode is similar to single 10 bit mode except that the two least significant bits are dropped and only 8 bits of data per pixel are transmitted The data sequence outlined below along with Figures 2 4 and 2 5 describes what is happening at the inputs to the Camera Link transmitter in the camera Note that the timing used for sampli
132. of the Basler website at www baslerweb com Once you have downloaded the latest version of the tool uninstall the old version from your computer and install the new version Start the CCT click on the port selection drop down menu and select an RS 644 port from the list Does a list of camera parameters appear Does a This type of camera is not supported message appear The port is present and can be accessed but the camera is not responding Make sure that The camera has power and that the power source meets the requirements in Section 2 8 You are using the correct data cable between you camera The RS 644 and the frame grabber see Section 2 2 port is working The wires in the data cable are continuous correctly Exit this chart The cable connections are firmly seated After you made these checks is the problem still present Yes Contact Basler Technical Support The contact numbers appear on the title page of this manual Basler L400k 6 3 Troubleshooting Tech Support Resources If you need advice about your camera or if you need assistance troubleshooting a problem with your camera you can contact the Basler technical support team for your area Basler technical support contact information is located in the front pages of this manual You will also find helpful information such as frequently asked questions downloads and application notes in the Support section and the Downloads section
133. of light level data in the scene being captured by the camera exceeds the range of camera output In this situation all of the pixels that are seeing a light level higher than the camera can represent will be clipped at the camera s maximum output value as shown in Figure 3 8 Low clipping is caused when the combination of gain and offset is set so that a large part of the light level data in the darker areas of scene being captured by the camera is below the range of camera output In this situation all of the pixels that are seeing a light level lower than the camera can represent will be clipped at the camera s minimum output value as shown in Figure 3 9 If the camera is experiencing clipping a clipping error flag will be set You can determine whether clipping is present by checking the camera status as described in Section 3 12 255 m Camera Starting at this light Output 192 level pixel values in 8 bit output from the mode camera are clipped to 255 128 64 y Increasing Light Figure 3 8 High Clipping 255 Camera Output 192 in 8 bit Up to this light level mode pixel values output from the camera are 128 clipped to 0 64 Increasing Light Figure 3 9 Low Clipping Basler L400k Operation and Features 3 7 Area of Interest AOI The area of interest feature is not available when the dual separated video data out put mode see Section 2 5 5 3 is se
134. of the Basler website at www baslerweb com If you do decide to contact Basler technical support please take a look at the form that appears on the last two pages of this section before you call Filling out this form will help make sure that you have all of the information the Basler technical support team needs to help you with your problem Obtaining an RMA Number Whenever you want to return material to Basler you must request a Return Material Authorization RMA number before sending it back The RMA number must be stated in your delivery documents when you ship your material to us Please be aware that if you return material without an RMA number we reserve the right to reject the material You can find detailed information about how to obtain an RMA number in the Support section of the Basler website at www baslerweb com Basler L400k 6 9 Troubleshooting 6 5 Before Calling Basler Technical Support 6 10 To help you as quickly and efficiently as possible when you have a problem with a Basler camera it is important that you collect several pieces of information before you contact technical support Copy the form that appears on this and the next page or download it from the Support section of www baslerweb com fill it out and fax the pages to your local dealer or to your nearest Basler support center Or you can write an e mail listing the requested pieces of information and with the requested files attached Our techni
135. onfiguration Sets registers you are making changes to the work configuration set The work configuration set is located in the camera s volatile memory and the settings are lost if the camera is reset or if power is switched off The work configuration set is usually just called the work set for short Factory Configuration Set When a camera is manufactured a test setup is performed on the camera and an optimized configuration is determined The factory configuration set contains the camera s factory optimized configuration The factory set is saved in a permanent file in the camera s non volatile memory The factory set can not be altered and since it is stored in non volatile memory it is not lost when the camera is reset or switched off The factory configuration set is usually just called the factory set for short 3 15 1 Saving Configuration Sets As mentioned above the work configuration set is stored in the camera s volatile memory and the settings are lost if the camera is reset or if power is switched off L400k cameras can save the current work set values in the volatile memory to a file in the camera s non volatile memory Files saved in the non volatile memory are not lost at reset or power off You can save up to four configuration sets to files in the non volatile memory These saved configuration sets are commonly referred to as user configuration sets or user sets Saving a Configuration Set
136. ons 5 1 Camera Dimensions and Mounting Facilities 0 0 0 0 eee eee 5 2 5 2 Sensor Positioning Accuracy ooocoocccoo es 5 3 5 3 Sensor Line Location 0 060550 eee ee be rh bu 5 4 5 4 F Mount Adapter Dimensions 0000 2c eee 5 5 IV Basler L400k Contents 6 Troubleshooting 6 1 Fault Finding Using the Camera LED oooccccccccc 6 1 6 2 Troubleshooting Charts 0 0 cece ete 6 3 6 2 1 No Irmi ge sist Beds a Roa A Rue m eed us 6 3 6 2 2 Poor Quality Image 0 6 III III 6 5 6 2 3Interfacing acaricio tarda Ub ed ee wax 6 7 6 2 4 RS 644 Serial Communication llli eee 6 8 6 3 Tech Support Resources o ooooocooo es 6 9 6 4 Obtaining an RMA Number sese n 6 9 6 5 Before Calling Basler Technical Support 222000 cee eee 6 10 Revisi n HIStory ii iota bos URS e RUD Bata th es A i Feedback oo a ou A doy ne ate a ees ii o 2523 bodie Pp be ecu ad BO uq eut ed uon i uaDckiduind maso i itis v Basler L400k V Contents VI Basler L400k 1 1 Introduction Document Applicability This User s Manual applies to L401kcameras with a camera version ID number of 04 and to L402k cameras with a camera version ID number of 05 Introduction Cameras with a lower or a higher ID number may have fewer features or have more features than described in this manual Features on cameras with a lower or a higher ID number may not operate exactly as descr
137. ontrolled and pro grammable exposure time control mode As mentioned in Section 3 4 1 3 there is a slight delay in both the start and the end of exposure when you are using an ExSync signal to control the camera When the dark noise cancellation feature is enabled the exposure start delay and end delay are increased The size of the exposure start delay and end delay with the dark noise cancellation feature enabled depends on the camera model and the exposure mode setting Table 3 6 shows the exposure start delay and end delay for each camera model and exposure mode combination when the dark noise cancellation feature is enabled L401k L402k Exposure Mode Start Delay End Delay Start Delay End Delay Level controlled 141 7 0 5 0 0 us 145 2 0 5 0 0 us 70 9 0 5 0 0 us 72 6 0 5 0 0 us Programmable 141 7 0 5 0 0 us 141 7 0 5 0 0 us 70 9 0 5 0 0 us 70 9 0 5 0 0 us Table 3 6 Exposure Start and End Delays with the Noise Cancellation Feature Enabled Basler L400k 3 31 Operation and Features 3 32 As mentioned above the dark noise cancellation feature has no effect in edge controlled mode If you work in edge controlled mode and enable the dark noise cancellation feature you will see no image enhancement but a slight delay in both the start and the end of exposure as shown in Table 3 7 L401k L402k Exposure Mode Start Delay End Delay Start De
138. ower source for the camera The output must No It is be 12 VDC 1 2 V Also make sure that always gt the power source meets the other specs out shown in Section 2 8 Is the power source OK Yes No Replace the Replace the camera power source No It is showing a A repeated flashing pattern indicates a problem with the repeated pattern of camera Refer to Section 6 1 for information about using slow orange flashes the pattern to determine the problem An overvoltage condition has been detected No It is flashing red X Switch off the input power to the camera Make the necessary continuously corrections so that the input power will meet the requirements outlined in Section 2 8 and then reapply power to the camera No It is flashing orange continuously Call Basler Technical Support for assistance The contact numbers appear on the title page of this manual Use a voltmeter to check the power source for the camera The output must be 12 VDC x 1 2 V Also make sure that the No Replace the power source meets the other specs shown in Section 2 8 power source Basler L400k Is the power source OK Yes Troubleshooting Check to make sure that the RS 644 serial connection is working OK You can do this by starting the Camera Configuration Tool Plus CCT When you start the tool a startup graphic should appear and then a window that shows a l
139. p pixels S11 and S12 represent the least significant and most significant bytes respectively of the Total Low Pixels The Total Low Pixels indicates the number of pixels in the captured line that are below a camera parameter called the Low Pixel Limit see Section 3 8 1 for information on setting this parameter The Total Low Pixels can range from 0 to 4080 decimal As an example assume that the Low Pixel Limit is set to 100 Also assume that the camera has captured a line and that 22 of the pixels in that line have a value less than 100 In this case the Total Low Pixels would be 22 The total low pixels does not include any of the 16 added stamp pixels If the AOI feature is being used the total low pixels is based only on the pixels within the AOI Basler L400k 3 23 Operation and Features 3 24 The total high pixel and total low pixel values are useful if you want to perform automatic gain control from within your camera control software application If you find that the total low pixel values are increasing over a period of time an increase in the gain setting would be appropriate If you find that the total high pixel values are increasing over a period of time a decrease in the gain setting would be appropriate Stamp Pixels S13 S14 and S15 Stamp pixels S13 S14 and S15 represent the least significant middle and most significant bytes respectively of the line contrast The line contrast is the sum of the difference in
140. pixel values for each pair of neighboring pixels in the captured line In mathematical terms the line contrast is n 4079 Line Contrast X Pixel Value 4 Pixel Value n 1 The line contrast can range from 0 to 4173840 decimal The line contrast does not include any of the 16 added stamp pixels If the AOI feature is being used the line contrast is based only on the pixels within the AOI Line contrast values are useful when you are adjusting the camera s focus Generally the higher the line contrast value the better the focus Stamp Pixel S16 Stamp pixel S16 is reserved for future use Currently its value will always be 0 3 8 1 Enabling and Setting the Stamp You can enable and set the stamp feature with the Camera Configuration Tool Plus CCT or by using binary write commands from within your own application to set the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the Stamp Mode parameter in the Stamp parameters group to enable the stamp You use the Stamp Low Pixel Limit parameter and the Stamp High Pixel Threshold parameter to set the high pixel threshold and low pixel limit By Setting CSRs You enable the stamp feature by writing a value to the Mode field of the Stamp Mode CSR see page 4 28 You set the high pixel threshold by writing a value to the High Pixel Threshold field in the Stamp High Pixel Threshold CSR see page 4 30 You se
141. point value to the Absolute Exposure Time field or by writing an integer value to the Raw Exposure Time field Refer to Section 4 2 2 1 for an explanation of the difference between these two fields Register Base Address 0x1500 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name Absolute Exposure Time Offset 0x0001 Size 4 Bytes Type Read Write Description Writing a floating point value to this field sets the exposure time in us For example if the value in this field is set to 12 25 the exposure time will be 12 25 us The exposure time can normally range from 10 0 us to 100000 00 ys in increments of 0 07 The actual available range may be limited by the way any related parameters are set The value in this field is a standard IEEE 754 single precision 32 bit floating point number See Section 3 4 for more information about exposure time 4 14 Basler L400k Configuring the Camera Field Name Absolute Min Offset 0x0005 Size 4 Bytes Type Read only Description Minimum allowed floating point value for the absolute exposure time setting This field is updated to reflect limitations caused by the way any related features are set The
142. point value to this field sets the line period in us For example if the value in this field is set to 180 60 the line period would be 180 60 us The minimum and maximum absolute line period settings vary depending on the camera version and other settings see Section 3 2 To determine the current minimum and max imum settings check the entries in the Absolute Min and Absolute Max fields The value in this field is a standard IEEE 754 single precision 32 bit floating point number See Section 3 4 for more information about the line period Field Name Absolute Min Offset 0x0005 Size 4 Bytes Type Read only Description Minimum allowed floating point value for the absolute line period setting The value in this field is a standard IEEE 754 single precision 32 bit floating point number Field Name Absolute Max Offset 0x0009 Size 4 Bytes Type Read only Description Maximum allowed floating point value for the absolute line period setting The value in this field is a standard IEEE 754 single precision 32 bit floating point number Field Name Raw Line Period Offset 0x000D Size 4 Bytes Type Read Write Description Writing an integer value to this field sets the line period The actual line period is equal to the integer value multiplied by 2 30 us For example if the value in this field is set to 1500 0x0005DC then Line Period 1500 x 2 30 us Line Period 100 us The 4 bytes in this field are interpreted
143. put Mode L401k L402k Single tap no two line averaging 141 733 us 141 86 us Dual tap no two line averaging 70 93 us Dual separated tap no two line averaging 70 93 us Single tap with two line averaging 141 733 us 70 93 us Dual tap with two line averaging 70 93 us Dual separated tap with two line averaging 70 93 us Table 3 1 Minimum ExSync Signal Period The ExSync signal must remain high for at least 0 1 us The minimum exposure time is 10 0 us This means that In ExSync level controlled mode the ExSync signal must remain low for at least 10 0 us In ExSync programmable mode the programmed exposure time must be at least 10 0 us We strongly recommend using an exposure time that is at least 10 of the ExSync period Exposure times shorter than 1096 of the ExSync period will increase the non linearity of the camera s response In the ExSync programmable mode The maximum allowed programmed exposure time ExSync signal period 0 6 us If you set the exposure time to be longer than this allowed maximum the camera will behave as if itis in ExSync edge controlled mode In ExSync edge controlled and ExSync level controlled modes the relationship between the fall of the line valid signal and the rise of the ExSync signal must meet the minimum require ments shown in Figure 2 4 for the L401k or Figure 2 6 for the L402k When you are controlling exposure with an ExSync signal using the edge co
144. r ADC Gain and offset functions are performed on the pixel data using digital means For single and dual video data output mode the digitized pixel data is reordered in the camera s FPGA so that the pixels will be transmitted from the camera in sequential order from pixel 1 through pixel 4080 For dual separated video data output mode the pixel data is directly transmitted from the camera without reordering Pixel data is transmitted from the camera to the frame grabber using a format compatible with the Camera Link standard see Section 2 3 for details L401k and L402k cameras can transmit pixel data at a ten bit or an eight bit depth L401k cameras transmit data as a single pixel stream L402k cameras transmit data as a dual pixel stream or a single pixel stream Basler L400k 3 1 Operation and Features NS a ae a E E E E E TEE 1 CCD Sensor Left Half Pixels Right Half Pixels 3 4 2037 2038 2039 2040 2041 2042 2043 2044 4077 4078 4079 4080 FOKO O O OHORURMO COOOL To FPGA Left Half Shift Register Right Half Shift Register ADC ir To FPGA Figure 3 1 L400k Sensor Architecture For single and dual video data output mode the digitized pixel data is reordered in the camera s FPGA so that the pixels will be transmitted from the camera in se quential order from pixel 1 through pixel 4080 For dual separated video data output mode the pixel data is directly transmitted from the camera without reordering For det
145. r the frame grabber If you use a standard Camera Link cable to connect the L400k to a Camera Link In edge controlled mode the IntEn signal is low during charge transfer Basler Camera Link Cable Wires are unterminated and folded back inside of the connector housing on the frame grabber end Figure 2 10 Basler Camera Link Cable Basler L400k 2 6 Camera Interface RS 644 Serial Communication The L400k is equipped for RS 644 serial communication via the frame grabber as specified in the Camera Link standard The RS 644 serial connection in the Camera Link interface is used to issue commands to the camera for changing modes and parameters The serial link can also be used to query the camera about its current setup The Basler Camera Configuration Tool Plus CCT is a convenient graphical interface that can be used to change camera modes and parameters via the serial connection You can download the CCT software from the Downloads section of the Basler website at www baslerweb com Section 4 1 provides some basic information about the configuration tool Detailed instructions for using the tool are included in the on line help file that is installed with the tool Basler has also developed a binary read write command protocol that can be used to change camera modes and parameters directly from your own application via the serial connection using the API delivered with the frame grabber See Section
146. ra is switched off or reset or when the stamp feature is disabled Stamp Pixels S5 S6 and S7 Stamp pixels S5 S6 and S7 represent the least significant middle and most significant bytes respectively of the line sum The line sum is simply the total of all of the pixel values in the captured line The line sum can range from 0 to 4173840 decimal The line sum does not include the 16 added stamp pixels If the AOI feature is being used the line sum is based only on the pixels within the AOI Stamp Pixel S8 Stamp pixel S8 is reserved for future use Currently its value will always be 0 Stamp Pixels S9 and S10 Stamp pixels S9 and S10 represent the least significant and most significant bytes respectively of the Total High Pixels The Total High Pixels indicates the number of pixels in the captured line that are above a camera parameter called the High Pixel Threshold see Section 3 8 1 for information on setting this parameter The Total High Pixels can range from 0 to 4080 decimal As an example assume that the High Pixel Threshold is set to 200 Also assume that the camera has captured a line and that 56 of the pixels in that line have a value greater than 200 In this case the Total High Pixels would be 56 The total high pixels does not include any of the 16 added stamp pixels If the AOI feature is being used the total high pixels is based only on the pixels within the AOI Stamp Pixels 11 and S12 Stam
147. re mode combination For a given combination of camera model and exposure mode End Delay Transfer Gate Time Setup Time L401k L402k Exposure Mode Transfer Gate Time Setup Time Transfer Gate Time Setup Time Level controlled 3 333 us lt 0 5 us 1 666 us lt 0 5 us Programmable 0 000 us lt 0 5 us 0 000 us 0 5 us Edge controlled 3 333 us lt 0 5 us 1 666 us lt 0 5 us Table 3 3 Exposure End Delay Components D If you have the Dark Noise Cancellation feature enabled the start delay and the end delay will be different from what is shown here See Section 3 9 2 for more in formation The actual start and end of exposure can be monitored by using the Integrate En abled signal see Section 3 5 Basler L400k 3 7 Operation and Features 3 8 3 4 2 Free Run 3 4 2 1 Basics of Free run Controlled Operation In free run an ExSync signal is not required The camera generates its own internal control signal based on two programmable parameters Line Period and Exposure Time The camera s internally generated control signal rises and falls in a fashion similar to an ExSync signal In free run the camera exposes and outputs lines continuously and the line period parameter setting determines the camera s line rate 1 Line Rate een Line period In free run two modes of operation are available edge controlled and programmable
148. rection feature will be visible in the captured test images Basler L400k 3 39 Operation and Features 3 11 Error Condition Detection 3 40 3 11 1 Overvoltage Condition Detected L400k cameras have overvoltage protection If an input voltage greater than 14 5 VDC is applied to the camera the camera will automatically switch off the internal power applied to the CCD sensor so that the sensor will be protected In this situation you will still be able to communicate with the camera and the camera will still be able to transmit test images however no live images can be generated Although overvoltage protection is present we strongly recommend that you avoid applying an input voltage greater than 13 2 VDC Do not reverse the polarity of the input power to the camera Reversing the polarity of the input power can seriously damage the camera Refer to the user s manual for more detailed informa tion about the input power requirements NOTICE Making or Breaking Connections Incorrectly Can Damage the Camera 1 Be sure that all power to your camera and to your host PC is switched off before you make or break connections to the camera Making or breaking connections when power is on can result in damage to the camera or to the frame grabber 2 If you can t switch off the power be sure that the input power plug is the last connector that you plug into the camera when making connections and the first connector that you unplug
149. rter k BIC Video Data Output Formats Single tap Single tap one pixel per clock cycle one pixel per clock cycle Dual tap two pixels per clock cycle Dual separated tap two pixels per clock cycle Selectable 10 or 8 bit depth Synchronization Via external ExSync signal or free run Exposure Time Control Edge controlled level controlled or programmable Gain and Offset Programmable via a serial link Connectors One 26 pin female MDR connector One 6 pin Hirose micro miniature receptacle Power Requirements 12 VDC x 10 Max 6 0 W 12 VDC 12 VDC x 10 Max 7 0 W 12 VDC Lens Adapters F mount Housing Size L x W x H without lens adapter 41 3 mm x 71 mm x 71 mm with F mount adapter 79 1 mm x 71 mm x 71 mm Weight without lens adapter 310g with F mount adapter 420g Conformity CE FCC Table 1 2 Performance Specifications Basler L400k 1 3 Introduction 1 4 Spectral Response 1 4 Responsivity V uJ cm 2 The spectral response for L400k cameras is shown in Figure 1 2 350 450 550 650 750 850 950 1050 Wavelength nm Figure 1 2 Spectral Response D To obtain the best performance regarding the camera s blooming smearing and dark signal non uniformity characteristics use of a dielectric IR cut off filter is strongly rec ommended The filter should transmit in a range from 400 nm to 700 720
150. s 0x2B00 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name Mode Offset 0x0001 Size 1 Byte Type Read Write Description Writing an integer value to this field sets the stamp mode 0x00 Stamp disabled 0x01 Stamp enabled See Section 3 8 for more information about the stamp feature 4 28 Basler L400k Configuring the Camera Stamp Low Pixel Limit CSR Register Base Address 0x2B20 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name Low Pixel Limit Offset 0x0001 Size 2 Bytes Type Read Write Description Writing an integer value to this field sets the low pixel limit for the stamp feature When the camera is set for 8 bit output you should set the low pixel limit within a range from 0 0x0000 to 255 Ox00FF When the camera is set for 10 bit output you should set the low pixel limit within a range from 0 0x0000 to 1023 0xO3FF The 2 bytes in
151. s control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name Bitrate Offset 0x0001 Size 1 Byte Type Read Write Description Writing an integer value to this field sets the bit rate OxOF 9600 bps default 0x11 19200 bps 0x12 38400 bps 0x13 57600 bps 0x14 115200 bps When changing a setting for serial communication use the following procedure 1 Issue the write command with the new setting 2 Wait one second 3 Change the setting on the serial port that the camera is using a If you are using a Camera Link frame grabber change the setting on the frame grabber s RS 644 serial port b If you are using the camera with a k BIC change the bit rate on your PC s RS 232 serial port 4 Resume communication The RS 644 serial port on some Camera Link frame grabbers will only support a bitrate of 9600 If you are using a Camera Link frame grabber check the grabber s documentation before attempting to change the bitrate At reset or power off on the camera returns to the 9600 bps setting 4 34 Basler L400k Configuring the Camera 4 2 3 Bulk Data and the Bulk Data Control and Status Registers The term bulk data refers to a collection of values used by the camera as a block A configuration set see Section 3 15 is an example of one type of bulk data
152. s group to start the generation of a set of DSNU shading values b You can also start the generation of a set of DSNU shading values by using a binary write command see Section 4 3 to write a value to the Generate field of the Shading Value Generate CSR see page 4 31 Basler L400k 3 25 Operation and Features 3 26 4 The camera must capture at least 16 lines to create a set of DSNU shading correction values If your camera is set to control exposure with an ExSync signal you must generate at least 16 ExSync signal cycles after you signal the camera to begin generating the values If you are running the camera in a Free run exposure mode you must wait long enough for the camera to capture at least 16 lines a When the camera is capturing the lines it needs to create the DSNU shading values the line valid and data valid signals will go high and low as you would normally expect However the data in these lines is not useful to you and should be ignored If you started the generation of the shading values using the CCT and you are us ing an ExSync signal to trigger line capture and you are operating the camera ata line period greater than approximately 300 ms you should be aware of a potential problem Under these conditions the CCT may time out while it is waiting for the camera to capture 16 lines and you may see a Camera is not responding error message This error is not fatal to the shading value creation process
153. s of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name High Pixel Threshold Offset 0x0001 Size 2 Bytes Type Read Write Description Writing an integer value to this field sets the high pixel threshold for the stamp feature When the camera is set for 8 bit output you should set the high pixel threshold within a range from O 0x0000 to 255 0x00FF When the camera is set for 10 bit output you should set the high pixel threshold within a range from 0 0x0000 to 1023 Ox03FF The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the high pixel threshold Byte 2 High byte of the high pixel threshold See Section 3 8 for more information about the stamp feature and the high pixel threshold Field Name Min Offset 0x0003 Size 2 Bytes Type Read only Description Minimum allowed integer value for the high pixel threshold This field is updated to reflect limitations caused by the way any related features are set The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the min value Byte 2 High byte of the min value Field Name Max Offset 0x0005 Size 2 Bytes Type Read only Description Maximum allowed integer value for the high pixel threshold This field is updated to reflect limitations caused by the way any related features are set The 2 b
154. scription Byte sized register that is used to sequentially write to or read from a bulk data file You can save up to one shading value file in the non volatile memory There is a restriction on naming the file that holds the saved shading values The file must be named ShadingValues Basler L400k 4 3 Configuring the Camera Using Binary Read Write Commands on the L400k As explained in Section 4 2 each L400k camera has control and status registers with one or more fields that are used to set the values for parameters associated with a camera feature For example the gain control and status register has two fields that can be used to set the camera s gain see page 4 18 By writing values to fields in the control registers you configure the camera and control how it operates By reading values from fields in the control registers you can determine how the camera is currently configured Each camera also has inquiry registers with fields that contain basic information such as the camera s serial number and software version numbers By reading values in the inquiry register fields you can determine some basic information about the camera A binary read write command protocol has been developed for use with L400k cameras You can read the data in a register field by sending a binary read command to the camera For example you can use a read command to determine the current value of the Mode field of the
155. so create a link to the file so that the values in the file would be loaded into volatile memory after a reset or a power up Sample code that illustrates how to activate a saved bulk data file is available from Basler see Section 4 4 Basler L400k 4 37 Configuring the Camera 4 38 Enumerating Saved Bulk Data Files Bulk data file enumeration allows you to look through a list of existing saved bulk data files As an example assume that you want to see a list of all of the existing saved configuration set files To do so you would follow this procedure 1 2 4 5 Use a binary write command to set the value of the Control field in the configuration set bulk data CSR see page 4 41 to 0x00 Setting the value to 0x00 initiates an enumerate function Use a binary read command to read the Name field of the configuration set bulk data CSR This is the name of an existing saved configuration set file Use a binary read command to read the value in the Info field of the configuration set bulk data CSR a Ifthe value is 0x00 it means that the file exists and it is not an activated file Continue to step 4 b Ifthe value is 0x04 it means that the file exists and it is an activated file Continue to step 4 c Ifthe value is 0x01 no more saved configuration set files exist Exit the procedure Use a binary write command to set the value of the Control field in the configuration set bulk data CSR to 0x01 Setting the
156. sor positioning accuracy is as shown in Figure 5 2 Center of Sensor X Axis 0 1 Center of Sensor Y Axis Reference Plane Tolerances are typical Drawings are not to scale q peer re a a a C tri t ug cS PF Ss N y Figure 5 2 Sensor Positioning Accuracy in mm or degrees Basler L400k 5 3 Mechanical Considerations 5 3 Sensor Line Location The location of the sensor line on the sensor chip is as shown in Figure 5 3 Reference Plane Drawings are not to scale Sensor Line N A AA lt m2 2222222 SEA 152 5 um Figure 5 3 Sensor Line Location Basler L400k Mechanical Considerations 5 4 F Mount Adapter Dimensions 31 5 a D 0 o 46 5 gt D c p gt D Photosensitive Surface of the CCD o I ES 10 D Drawing is not to scale Figure 5 4 F Mount Adapter Dimensions in mm Basler L400k 5 5 Mechanical Considerations 5 6 Basler L400k 6 1 Troubleshooting Troubleshooting Fault Finding Using the Camera LED During bootup the camera loads firmware and performs initial self checks Once bootup is complete the camera performs a continuous series of self checks If
157. ss of how the AOI see Section 3 7 parame ters are set If you change the AOI settings you do not need to generate new shading values 3 9 1 2 DSNU Shading Correction In theory when a line scan camera with a digital sensor captures a line in complete darkness all of the pixel values in the line should be near zero and they should be equal In practice slight variations in the performance of the pixels in the sensor will cause some variation in the pixel values output from the camera when the camera is capturing lines in darkness This variation is know as Dark Signal Non uniformity DSNU The DSNU shading correction feature on L400k cameras can correct for the variations caused by DSNU Generating a Set of DSNU Shading Values Before you can use DSNU shading correction you must generate a set of DSNU shading correction values To generate a set of values perform the following steps 1 Cover the camera lens close the iris in the camera lens or darken the room so that the camera will be capturing lines in complete darkness 2 Begin capturing lines either by generating an ExSync signal to trigger line capture or by setting the camera for free run exposure 3 Signal the camera to generate a set of DSNU shading values a You can start the generation of a set of DSNU shading values with the Camera Configuration Tool Plus see Section 4 1 With the CCT you use the Shading Value Generate parameter in the Image Enhancement parameter
158. ssignments for the 26 pin MDR Connector 2 2 Basler L400k Camera Interface 6 Pin Micro miniature Receptacle Pin Assignments The pin assignments for the 6 pin micro miniature receptacle on the back of the camera are shown in Table 2 2 Pin Signal Direction Level Function Number Name 1 21 12V In Input 12 VDC Camera Power Input 3 Not Connected 4 Not Connected 5 62 DC Gnd Input Ground DC Ground Pins 1 and 2 are tied together inside of the camera Pins 5 and 6 are tied together inside of the camera Table 2 2 Pin Assignments for the 6 pin Micro miniature Receptacle The camera housing is not grounded and is electrically isolated from the circuit boards inside of the camera NOTICE Applying Incorrect Input Power Can Damage the Camera 1 The camera s nominal input power voltage is 12 VDC 10 We do not recommend applying an input voltage less than 10 8 VDC or greater than 13 2 VDC 2 The camera does have overvoltage protection If an input voltage greater than 14 5 VDC is applied to the camera the camera will automatically switch off the internal power applied to the CCD sensor so that the sensor will be protected In this situation you will still be able to communicate with the camera and the camera will still be able to transmit test images however no live images can be generated 3 Do not reverse the polarity of the input power to the camera Reversing the po
159. st when the camera is switched off You can activate the factory set file in a manner that is similar to activating one of your saved user set files Activating the factory set file is a good way to return the camera to normal operation if you have severely misadjusted some of the camera s parameters and you are not sure how to recover When you activate the factory set two things happen The values from the factory set file are copied into the work set in the camera s volatile mem ory The camera will now use the factory set values that were copied into the work set Alink is created between the factory set file and the camera s volatile memory The values in the factory set will now be automatically copied into the work set whenever the camera is powered up or reset Activating the Factory Set File You can activate the factory set file with the Camera Configuration Tool Plus CCT or by using binary read write commands from within your own application to set the camera s bulk data control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the File Name Select parameter and the Activate User Set parameter in the User Set Files parameters group to activate the factory set file By Setting CSRs You can activate the factory set file by writing values to the bulk data CSR for configuration sets The bulk data activate process is used to activate the factory set file Section 4 2 3 explains bulk
160. t has been loaded 4 of 6 slow orange Load another parameter set flashes Repeated pattern Parameter error For example a parameter is set out of range or to 5 of 5 slow orange a value that is not valid flashes Repeated pattern One of the following errors is present 6 of 4 slow orange A byte time out has occurred see Section 4 3 1 1 flashes Invalid opcode in a read or write command see Section 4 3 1 Incoming data has been discarded since no BFS was included see Section 4 3 1 Invalid BCC in a read or write command see Section 4 3 1 Invalid address in a read or write command see Section 4 3 1 Invalid data length in a read or write command see Section 4 3 1 Anunknown error with the binary read write command format has occurred Repeated pattern The last shading table generation process failed The flashing will 7 of 3 slow orange stop when you successfully complete a generation process or you flashes reset the camera Repeated pattern One of the following errors is present 8 of 2 slow orange The maximum allowed line rate has been exceeded lowest flashes see Section 1 3 ExSynchas not changed state for 5 seconds or longer Check the cable and the ExSync generating device Table 6 1 Camera Status Indicators If the status LED on the back of the camera is not lit it means that power to the camera is not present or is less than 10 8 Volts D The camera has overvoltage protectio
161. t image 3 enabled uniform black pattern 0x04 Test image 4 enabled uniform gray pattern See Section 3 10 for more information about test images Camera Reset CSR Register Base Address 0x0B00 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name Reset Offset 0x0001 Size 1 Byte Type Write only Description Writing an integer value of 1 0x01 to this field will initiate a camera reset The reset be havior is similar to a power up reset Basler L400k 4 33 Configuring the Camera Serial Communication CSR An RS 644 serial connection is integrated into the Camera Link interface between the frame grabber installed in your computer and the camera The serial connection is used to issue commands to the camera for changing modes and parameters You can use the serial communication CSR to set the bitrate for the camera s RS 644 serial port The default setting is 9600 bps The setting is changed immediately after the successful receipt of this command Register Base Address 0x0D00 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of thi
162. t the low pixel limit by writing a value to the Low Pixel Limit field in the Stamp Low Pixel Limit CSR see page 4 29 See Section 4 2 2 explains CSRs and Section 4 3 1 explains using read write commands Basler L400k 3 9 Operation and Features Image Enhancements 3 9 1 Shading Correction In theory when a digital camera captures an image of a uniform object the pixel values output from the camera should be uniform In practice however variations in optics and lighting and small variations in the sensor s performance can cause the camera output to be non uniform even when the camera is capturing images of a uniform object L400k cameras are equipped with a shading correction feature that allows the camera to correct the captured image for variations caused by optics lighting and sensor variations There are two types of shading correction available on L400k cameras DSNU shading correction and PRNU shading 3 9 1 1 Guidelines When Using Shading Correction When using the shading correction feature make sure to take the following guidelines into account Any time you make a change to the optics or lighting or if you change the camera s gain set ting or exposure mode you must generate a new set of PRNU shading values Using out of date PRNU shading values can result in poor image quality When you generate the DSNU and PRNU shading values correction values will be calcu lated for all of the pixels in the sensor regardle
163. t to use the proper cables when you are working with Camera Link based cameras L No Exit this Use an ohm meter to check each wire to see of it is broken or shorted to any of the other chart wires in the cable After you checked the cables is the problem still present Yes If extra hardware is available try to locate the problem by substitution Substitute only one piece of hardware at a time and Exit this retry the system after each substitution No chart After you finished making substitutions is the problem still present Yes Check the DCF configuration file that you are using with your frame grabber Make sure that it is the correct file for the Basler L400k model Be aware that sometimes different DCF files must be used depending on which of the camera s features you have enabled DCF files are typically found on the website of your frame grabber maker No gt EKU Nis After you checked the DCF file is the problem still present Yes Contact Basler Technical Support The contact numbers appear on the title page of this manual Before you call for support be sure to make note of the camera settings and the frame grabber settings you are using You should also have a captured live image and a captured test image available Technical support will frequently request that you e mail copies of these captured images Basler L400k 6 7 Troubleshooting 6 2 4 RS 644 Serial Communication Use
164. ta valid bits will become low indicating that valid pixel data is no longer being transmitted 1 The data sequence assumes that the camera is operating in 10 bit mode If the camera is operating in 8 bit mode only 8 bits of data per pixel will be transmitted When the AOI and Counter Stamp features are used the number of cycles could be more or less than 4080 See Sections 3 7 and 3 8 for more information 2 12 Basler L400k Camera Interface Figure 2 4 shows the data sequence when the camera is operating in edge controlled or level controlled exposure mode Figure 2 5 shows the data sequence when the camera is operating in programmable exposure mode ExSync Signal m lt 143 2 us L401k 71 8 us L402k Line Valid Data Valid Pixel Clock Pixel X X X Wao aKa 5X6 X XN GQN SYN AN SN 2ANN NM NY X X X S Data j 10 or 8 bits N 4080 When the AOI and Stamp features are used N could be more or less than 4080 see Sections 3 7 and 3 8 Timing diagrams are not to scale Figure 2 4 L400k single 10 or 8 Bit Output Mode with Edge or Level Controlled Exposure end of O programmed time lt lt 143 2 ys L401k 71 7 us L402k un A e UU UU UU YUU UUW UU UU UU 10 or 8 bits N 4080 When the AOI and Stamp features are used N could be more or less than 4080 see Sections 3 7 and 3 8 Timing d
165. tch on the test image one interfacing Can the test image be seen troubleshooting chart Check your exposure setting The exposure time must be Correct less than the ExSync period No gt the setting Is the exposure OK Yes Yes Y Replace the camera Go to the Switch on test image one interfacing Can the test image be seen troubleshooting chart Yes Replace the camera 6 4 Basler L400k Troubleshooting 6 2 2 Poor Quality Image Use this chart if the image is poor quality is completely white or is completely black If you get no image at all when you attempt to capture an image with the frame grabber use the chart that appears in Section 6 2 1 Do all captured images appear to be completely black or very dark No Yes Capture several lines and check the pixel values in each captured line Most frame grabbers include software tools that allow you to see the individual values of each pixel in the captured lines and histograms that display distributions of the pixel values in the lines Are the pixel values in each captured line identical to the pixel values in all of the other captured lines No Yes Use the CCT to activate the Factory Set Once the Factory set is activated capture several images Is the problem still present Yes Contact Basler Technical Support The contact numbers appear on the title page of this manual Before you call for support be sure to
166. te See Sections 3 4 1 3 and 3 4 2 3 Basler L400k 3 3 Operation and Features 3 4 3 4 Exposure Time Control Modes L400k series cameras can operate under the control of an external trigger signal ExSync or can operate in free run In free run the camera generates its own internal control signal and does not require an ExSync signal 3 4 1 ExSync Controlled Operation 3 4 1 1 Basics of ExSync Controlled Operation In ExSync operation the camera s line rate and exposure time are controlled by an externally generated ExSync signal The ExSync signal is typically supplied to the camera by a frame grabber board via the Camera Link cable You should refer to the manual supplied with your frame grabber board to determine how to setup the ExSync signal that is being supplied to the camera When the camera is operating under the control of an ExSync signal the length of the ExSync signal period determines the camera s line rate Line Rate 1 ExSync Signal Period The ExSync signal can be periodic or non periodic as required When the camera is operating with an ExSync signal three modes of exposure time control are available edge controlled mode level controlled mode and programmable mode n ExSync edge controlled mode the pixels are exposed and charge is accumulated over the full period of the ExSync signal rising edge to rising edge The falling edge of the ExSync signal is irrelevant The line is read out and tra
167. that you unplug from the camera when breaking connections NOTICE Applying Incorrect Input Power Can Damage the Camera 1 The camera s nominal input power voltage is 12 VDC 10 We do not recommend applying an input voltage less than 10 8 VDC or greater than 13 2 VDC 2 The camera does have overvoltage protection If an input voltage greater than 14 5 VDC is applied to the camera the camera will automatically switch off the internal power applied to the CCD sensor so that the sensor will be protected In this situation you will still be able to communicate with the camera and the camera will still be able to transmit test images however no live images can be generated 3 Do not reverse the polarity of the input power to the camera Reversing the polarity of the input power can seriously damage the camera Refer to the user s manual for more detailed information about the input power requirements Basler L400k 3 1 Operation and Features Operation and Features Functional Description Basler L400k line scan cameras employ a CCD sensor chip which provides features such as electronic exposure time control and area of interest scanning Exposure time can be controlled via an external trigger ExSync signal The ExSync signal facilitates periodic or non periodic pixel readout When exposure is controlled by an ExSync signal the camera can operate in either an edge controlled a level controlled or a progra
168. the AOI have been transmitted the line valid and data valid bits will become low indicating that valid line data is no longer being transmitted Basler L400k 3 17 Operation and Features sr Qiii E AOI Starting Pixel 5 AOI Ending Pixel 4076 Line AOI Length 4072 Valid bi Data Valid PSl 4 X X X K1K2 3X 4X 5X 6X7 X X4074K4075X4076X4077X4078X4079X4080XK X X X 10 p its Pixel Clock Figure 3 11 AOI Output on an L401k with Edge or Level Controlled Exposure Signal AOI Starting Pixel 5 AOI Ending Pixel 4076 HU Line AOI Length 4072 Valid lt T Data Valid UU LUV UL UU UV UU pre DONADO AAAA ive or al Sits prel OOXDOXOXOOOX XXX AAAA X XOXOXOXOO0 ate or al Sits Figure 3 12 AOI Output on an L402k with Edge or Level Controlled Exposure 3 18 Basler L400k Operation and Features 3 7 1 Setting the AOI You can set the AOI with the Camera Configuration Tool Plus CCT or by using binary write commands from within your own application to set the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the AOI Starting Pixel parameter and the AOI Length parameter in the AOI parameters group to set the AOI By Setting CSRs You set the AOI starting pixel by writing a value to the Starting Pixel field of the AOI Starti
169. the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the Gain Balance Left Right parameter in the Gain amp Offset parameters group to set the gain balance By Setting CSRs You set the gain balance by writing a value to the Absolute Gain Balance field or to the Raw Gain Balance field of the Gain Balance CSR see page 4 20 Section 4 2 2 explains CSRs and the difference between using the absolute field and the raw field in a CSR Section 4 3 1 explains using read write commands Basler L400k 3 13 Operation and Features 3 14 3 6 3 Offset When the camera is set for 8 bit output offset is adjustable within a range from 200 0 to 200 0 DN digital numbers in increments of 0 5 DN When the camera is set for 10 bit output the range is from 800 0 to 800 0 DN and is adjustable in 0 5 DN increments Increasing the offset by one will cause the average pixel value for each line transmitted by the camera to increase by one digital number Decreasing the offset by one will cause the average pixel value for each line transmitted by the camera to decrease by one digital number 3 6 3 1 Setting the Offset You can set the offset with the Camera Configuration Tool Plus CCT or by using binary write commands from within your own application to set the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the Offset param
170. the camera automatically changes any entry in an absolute field to the nearest valid value you do not need to worry about making sure that the values you write to the absolute field are the equivalent of writing a value to the raw field But you do need to be aware that when you write a value to an absolute field the camera may make a small change to the value to make it valid If you read back a value in an absolute field you may find that it is slightly different from the value that you wrote to the field 4 13 Configuring the Camera 4 2 2 2 Feature Control and Status Register Details Exposure Time Control Mode CSR Register Base Address 0x1400 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name Mode Offset 0x0001 Size 1 Byte Type Read Write Description Writing an integer value to this field sets the exposure time control mode 0x00 Free run programmable 0x02 Free run edge controlled 0x04 ExSync level controlled 0x05 ExSync programmable 0x06 ExSync edge controlled See Section 2 5 5 for descriptions of the video data output modes Exposure Time CSR Note The exposure time can be set by writing a floating
171. the serial communication troubleshooting charts if you think that there is a problem with RS 644 serial communication or if you have been directed here from another chart Serial Communication Chart A without a BIC Always switch off power to the system before making or breaking any connection The RS 644 port used by the L400k is located on the frame grabber Check the documentation for your frame grabber Make sure that you have installed all software related to the port and that the port has the following settings Make corrections and then restart 8 data bits no parity 1 stop bit and baud rate 9600 bps your computer Is the port software installed and are the port settings correct Yes Start the Camera Configuration Tool Plus CCT and click on the port selector drop down menu that appears below the menu bar A list will show any RS 644 port s available on the frame grabber RS 644 ports are identified in the list by a port number and a dll library name Click on an RS 644 port in the list Does a list of camera settings appear The RS 644 J port is working correctly Exit this chart Yes No Does a Can t connect to the port because The portis present butthe CCT can not access the port the port is in use message appear Yes 3 Make sure that no other program has access to the port You may need to update the CCT To download the latest version of the tool go to the Downloads section
172. the values for the darkest pixels in the captured lines are less than 1 2 of the values for the lightest pixels This problem is often caused by extremely non uniform light ing or by poor quality optics This bit will clear when you perform a successful shading value generation procedure 20 31 Reserved Basler L400k 4 9 Configuring the Camera 4 10 FPGA Status Inquiry The camera has been programmed to detect several error conditions in its field programmable gate array FPGA When an error condition is detected a flag is set The FPGA status inquiry register allows you to read the error flags Register Base Address 0x0C10 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this inquiry register 0x00 The register is not available 0x01 The register is available Field Name FPGA Status Offset 0x0001 Size 1 Byte Type Read only Description Each bit in this field specifies an error condition see table below Bit 0 is the least signifi cant bit If a bit is set to 1 the error condition assigned to that bit is present If the bit is set to 0 the error is not present Bit Description 0 No FPGA firmware available 1 FPGA firmware is available but the firmware has failed to load 2 The camera s maximum line rate has been exceeded Note If you are operating the camera in ExSync programmable mode and you
173. this field are interpreted as follows Byte 1 Low byte of the low pixel limit Byte 2 High byte of the low pixel limit See Section 3 8 for more information about the stamp feature and the low pixel limit Field Name Min Offset 0x0003 Size 2 Bytes Type Read only Description Minimum allowed integer value for the low pixel limit This field is updated to reflect limita tions caused by the way any related features are set The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the min value Byte 2 High byte of the min value Field Name Max Offset 0x0005 Size 2 Bytes Type Read only Description Maximum allowed integer value for the low pixel limit This field is updated to reflect limita tions caused by the way any related features are set The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the max value Byte 2 High byte of the max value Field Name Increment Offset 0x0007 Size 2 Bytes Type Read only Description An integer value indicating the increment for the low pixel limit setting The 4 bytes in this field are interpreted as follows Byte 1 Low byte of the max value Byte 2 High byte of the max value Basler L400k 4 29 Configuring the Camera Stamp High Pixel Threshold CSR Register Base Address 0x2B40 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the statu
174. tics and variations in the lighting will cause some variation the pixel values output from the camera This variation is know as Photo Response Non uniformity PRNU The PRNU shading correction feature on L400k cameras can correct for the variations caused by PRNU Generating a Set of PRNU Shading Values Before you can use PRNU shading correction you must generate a set of PRNU shading correction values To generate a set of values perform the following steps 1 Place a uniform white or light colored target in the field of view of the camera Adjust your lighting optics line rate exposure mode exposure time gain and camera temperature as you would for normal system operation 2 Capture several lines and examine the pixel values returned from the camera The pixel values for the brightest pixels should be about 90 to 95 of maximum a If the pixel values for the brightest pixels are at 90 to 95 of maximum go on to step 3 b If the pixel values for the brightest pixels are not at 90 to 95 of maximum adjust your lighting and or lens aperture setting to achieve 90 to 95 C If you can not achieve 90 to 95 output by adjusting the lighting and or aperture then adjust the gain setting to achieve the correct output 3 Capture several lines and examine the pixel values in each line In each line the values for the darkest pixels must not be less 1 2 of the values for the lightest pixels in the line If the values for the darkest
175. tly misadjusted Review the camera manual to make sure that you i Is the problem tl present are setting the camera correctly Yes Basler L400k 6 5 Troubleshooting 6 6 Images are too bright or too dark Do the following Make sure that the lens cap has been removed Check the lens aperture If the images are too dark try opening the aperture Try closing the aperture if they are too bright Check the exposure time If the images are too dark try increasing the exposure Try decreasing the exposure if they are too bright Check your light source If the images are too dark try increasing your light intensity Try decreasing the intensity if they are too bright Check your gain setting If the images are too dark try increasing the gain Try decreasing the gain if they are too bright Has the problem been corrected Exit this chart Images look noisy Other image problems Do the following Make sure that you are using a DC light source Using an AC light source can make images appear noisy Make sure that the camera has proper ventilation If the camera becomes extremely hot it may produce noisy images Check the exposure time If you use an extremely long exposure time the images can become noisy Check your gain setting Using a very low or a very high gain setting can cause noisy images Examine the objects that you are imaging Objects with characteristics such as ch
176. tures 3 6 2 Gain Balance As mentioned in Section 3 1 the pixels in the left half of the CCD sensor and the pixels in the right half of the CCD sensor are processed through two different electronic channels When you change the global gain setting as described in Section 3 6 1 you apply an equal amount of gain to the pixel values from each channel The gain balance setting lets you individually adjust the gain applied to the left half and to the right half of the sensor and thereby adjust the gain balance The gain balance is adjustable within a range from 1 00 dB to 1 00 dB in increments of 0 01 dB The default setting is O dB Setting the gain balance to a positive number will increase the gain applied to the pixel values from the left half of the sensor and decrease the gain applied to the pixel values from the right half Setting the gain balance to a negative number will decrease the gain applied to the pixel values from the left half of the sensor and increase the gain applied to the pixel values from the right half As an example assume that you have set the gain on the camera to 8 00 dB and the gain balance to 0 50 dB In this case the camera would be operating with 8 50 dB of gain on the left half of the sensor and 7 50 dB on the right half 3 6 2 1 Setting the Gain Balance You can set the gain balance with the Camera Configuration Tool Plus CCT or by using binary write commands from within your own application to set
177. u can determine basic information about the camera and information about the camera s current parameter settings By writing values to the registers you can set camera parameters and control how the camera s features will operate There are three types of registers in an L400k Inquiry Registers these registers provide basic information about the camera Section 4 2 1 explains inquiry registers in more detail lists the inquiry registers in the camera and describes the function of each register Feature Control and Status Registers these registers let you set the parameters associated with the camera s features Section 4 2 2 explains feature control and status registers in more detail lists the feature control and status registers in the camera and describes the function of each register Bulk Data Control and Status Registers these registers let you store and recall sets of val ues that the camera uses as a group Section 4 2 2 explains bulk data and the bulk data con trol and status registers in more detail It also lists the bulk data registers in the camera and describes the function of each register A special binary read write command protocol is used to read from and write to the registers in the camera Read and write commands are sent to the camera via the standard serial link between the camera and the frame grabber Section 4 3 describes the binary read write command protocol in detail and also provides information on
178. ue is set to 1 the length of the AOI will be 1 pixel If the value is set to 2 the length of the AOI will be 2 pixels Etc On L402k cameras the AOI length must be set to an even number The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the length value Byte 2 High byte of the length value See Section 3 7 for more information about the AOI feature Field Name Min Offset 0x0003 Size 2 Bytes Type Read only Description Minimum allowed integer value for the length setting This field is updated to reflect limita tions caused by the way any related features are set The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the min value Byte 2 High byte of the min value Field Name Max Offset 0x0005 Size 2 Bytes Type Read only Description Maximum allowed integer value for the length setting This field is updated to reflect limita tions caused by the way any related features are set The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the max value Byte 2 High byte of the max value Field Name Increment Offset 0x0007 Size 2 Bytes Type Read only Description An integer value indicating the increment for the length setting The 4 bytes in this field are interpreted as follows Byte 1 Low byte of the max value Byte 2 High byte of the max value Basler L400k 4 27 Configuring the Camera Stamp Mode CSR Register Base Addres
179. ues but only the 8 MSBs will carry information The two LSBs will be packed with zeros When the camera is operating in an 8 bit output mode the stamp pixels will be 8 bit The table below shows the function of each stamp pixel by position A more detailed explanation of how to interpret the pixel values follows the table Position Function Position Function S1 Fixed value of OxAA S9 Total High Pixels LSByte 2 Fixed value of 0x55 10 Total High Pixels MSByte 3 Line Counter LSByte 11 Total Low Pixels LSByte S4 Line Counter MSByte 12 Total Low Pixels MSByte 5 Line Sum LSByte 13 Contrast Value LSByte S6 Line Sum MidByte 14 Contrast Value MidByte S7 Line Sum MSByte 15 Contrast Value MSByte S8 Reserved S16 Reserved Table 3 5 Stamp Pixel Functions 3 22 Basler L400k Operation and Features Stamp Pixels S1 and S2 Stamp pixels S1 and S2 are fixed values of OxAA and 0x55 respectively These two values are the bitwise complement of each other and can be used as a data integrity check They can also be used to find the start of the stamp pixels Stamp Pixels S3 and S4 Stamp pixels S3 and S4 represent the least significant and most significant bytes respectively of the line counter The line counter increments by one for each line captured by the camera The counter starts at 0 and wraps at 65535 decimal The line counter is reset to 0 whenever the came
180. uidelines must be followed The line period must not be lower than the minimums shown in Table 3 4 Video Data Output Mode L401k L402k Single tap no two line averaging 141 733 us 141 86 us Dual tap no two line averaging 70 93 us Dual separated tap no two line averaging 70 93 us Single tap with two line averaging 283 466 us 141 86 us Dual tap with two line averaging 141 86 us Dual separated tap with two line averaging 141 86 us Table 3 4 Minimum Line Periods n the free run programmable mode the minimum exposure time and the maximum expo sure time must be within the limits specified in the Exposure Time CSR see page 4 14 the non linearity of the camera s response We strongly recommend using an exposure time that is at least 10 of the line period Exposure times shorter than 10 of the line period will increase When you are operating the camera in free run using the edge controlled mode will give you the best performance in terms of signal to noise ratio 3 5 Integrate Enabled Signal An output signal called Integrate Enabled IntEn is available on L400k cameras The integrate enabled signal indicates that an exposure is taking place The signal will go high when each exposure begins and go low when the exposure ends The characteristics of the signal are described in more detail in Section 2 5 6 3 10 Basler L400k 3 6 Gain and Offset
181. ure s status The address for any field within a register is equal to the register base address plus the offset for the field Look at the Video Data Output Mode CSR on page 4 17 as an example The Mode field of this register has an address of 0x1701 the base address of 0x1700 plus the offset of 0x0001 By writing a value to this address you can set the video data output mode By reading the value at this address you can determine the current output mode setting The Video Data Output Mode CSR is a simple CSR with only two fields Most of the other feature CSRs have several read write fields that let you set the parameters associated with the feature They may also have read only fields that contain information about the minimum and maximum allowed setting for each parameter Section 4 2 2 2 lists the feature CSRs in L400k cameras and shows detailed information about the use of each field within the register 4 2 2 1 Raw Value Fields vs Absolute Value Fields As you look through the descriptions of the feature CSRs you will notice that some CSRs have a parameter that can be set by writing a value to a raw field or by writing a value to an absolute field You will find this to be true for the Exposure Time Line Period Gain Gain Balance Offset and Offset Balance parameters The common characteristic among these parameters is that they are scalar i e they can be set to a value within a continuous scale rather th
182. used by the way any related features are set The 4 bytes in this field are interpreted as follows Byte 1 Low byte of the min value Byte 2 Mid byte of the min value Byte 3 High byte of the min value Byte 4 Always 0x00 not used Field Name Raw Max Offset 0x0015 Size 4 Bytes Type Read only Description Maximum allowed integer value for the raw exposure time setting This field is updated to reflect limitations caused by the way any related features are set The 4 bytes in this field are interpreted as follows Byte 1 Low byte of the max value Byte 2 Mid byte of the max value Byte 3 High byte of the max value Byte 4 Always 0x00 not used Basler L400k 4 15 Configuring the Camera Line Period CSR Note The line period can be set by writing a floating point value to the Absolute Line Period field or by writing an integer value to the Raw Line Period field Refer to Section 4 2 2 1 for an explanation of the difference between these two fields Register Base Address 0x1600 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name Absolute Line Period Offset 0x0001 Size 4 Bytes Type Read Write Description Writing a floating
183. used whenever shading correction is enabled Values in the camera s volatile memory are lost if the camera is reset or the camera power is switched off On L400k cameras you can save the DSNU and PRNU shading values currently in the volatile memory to a file in the camera s non volatile memory When you perform the process to save the shading values the DSNU values and the PRNU values currently in the volatile memory are stored together as a complete set in a single file in the non volatile memory Files saved in the non volatile memory are not lost at reset or power off You can save one complete set of DSNU and PRNU shading values to a file in the non volatile memory Basler L400k 3 29 Operation and Features 3 30 Saving a Set of Shading Values to a File You can save the DSNU and PRNU shading values currently in the volatile memory to a file in the non volatile memory with the Camera Configuration Tool Plus CCT or by using binary read write commands from within your own application to set the camera s control and status registers CSRs With the CCT With the CCT see Section 4 1 you use the Create Shading parameter in the Shading Value File parameters group to save the DSNU and PRNU shading values currently in the volatile memory to a file in the non volatile memory By Setting CSRs You can save the DSNU and PRNU shading values currently in the volatile memory to a file in the non volatile memory by writing values to t
184. using the serial link Sample code that illustrates how to use the read write commands is available from Basler see Section 4 4 Basler L400k 4 5 Configuring the Camera 4 2 1 Inquiry Registers Inquiry registers contain basic information about the camera and information about the camera s current status Each inquiry register contains one or more fields and each field has an assigned address within the camera s memory space By using a binary read command you can read the data in a field and get information about the camera The address for any field within a register is equal to the register base address plus the offset for the field For example the Vendor Information Inquiry Register see below has a Vendor Name field with an address of 0x0101 the base address of 0x0100 plus an offset of 0x0001 By reading the data at address 0x0101 you can get information about the camera vendor s name Section 4 2 1 1 lists the inquiry registers in L400k cameras and shows detailed information about the use of each field within the registers 4 2 1 1 Inquiry Register Details Vendor Information Inquiry Register Base Address 0x0100 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this inquiry register 0x00 The register is not available 0x01 The register is available Field Name Vendor Name Offset 0x0001 Size 20 Bytes Type R
185. ustrates how to create a bulk data file is available from Basler see Section 4 4 You can save up to four configuration set files in the non volatile memory There is a restriction on naming the files that hold saved configuration sets They must be named UserSet01 UserSet02 UserSet03 or UserSet04 If you use the name of an existing file the data in the existing file will be overwritten Saving a Set of Shading Values As mentioned in Section 3 9 1 when you generate a set of shading values the values reside in the camera s volatile memory Assume that you want to save the DSNU and PRNU shading values currently in the volatile memory to a file named ShadingValues in the camera s non volatile memory To do so you would follow this procedure 1 Use a binary write command to write the file name ShadingValues to the Name field of the shading values bulk data CSR see page 4 42 2 Use a binary write command to set the value of the Control field of the shading values bulk data CSR to 0x06 Setting the value to 0x06 initiates a create function This procedure would create a file called ShadingValues in the non volatile memory and would copy the current shading values from the camera s volatile memory into the new file Sample code that illustrates how to create a bulk data file is available from Basler see Section 4 4 You can save one set of shading values in the non volatile memory There is
186. vailable at the National Semiconductor website www national com Basler L400k Camera Interface NS ee s 7 MDR Cabe CT 7 DS90CR285 Transmitter DS90CR286A Receiver Port AQ Port AO bio E air i Port A2 l Pair 1 a Port A5 E i l E i f i Pair 2 E l Pair 2 H l l H l l l E Pair 3 i H Pair 3 l i l l _ Pair 5 H Pair 5 l _ Not Used Notused Pair 4 l l Pair 4 l l l l I Pair 10 Reserved Pair 10 l Pair 11 Reserved Reserved l l Pair 11 l l Pair 9 l Reserved Reserved l Pair 9 l l Pair 8 ExSync Pair 8 l l l l DS90LV011A Tmtrs l Pair 6 SerTC l SerTC l l Pair 6 SerTC OO DS90LV011A Tmtr l CVT l Pair 7 SerTFG l SerTFG SerTFG SSHEG Pair 7 l SerTFG I DS9OLVO11A Tmtr l Inner Shield I R1 Inner Shield WW Note R1 should be l zero ohm C1 is optional Ferrite Inner Shield jp 4 X R1 and C1 can be used Bead to prevent ground loops l Shield e G3 nere Er if needed I n i l 4 26 pin Male MDR Connector l EN 26 pin Female Frame Grabber MDR Connector L l Not Connected 6 pin l Not Connected T Micro miniature l Receptacle l l
187. value to 0x01 initiates an enumerate next function Return to step 2 This procedure would list all of the configuration set bulk data files stored in the computer If you wanted to enumerate the existing saved shading value file you would use a similar procedure but you would write to and read from the shading value bulk data CSR instead Sample code that illustrates how to enumerate bulk data files is available from Basler see Section 4 4 Basler L400k Configuring the Camera Downloading a Saved Bulk Data File from the Camera to a PC You can download an existing saved bulk data file from the camera s non volatile memory to your host PC As an example assume that the camera has an existing saved configuration set file named UserSet02 and that you want to download this file from the camera to your host PC To do so you would follow this procedure 1 2 Use a binary write command to write the file name UserSet02 to the Name field of the configuration set bulk data CSR Use a binary read command to read the Size field of the configuration set bulk data CSR If the file exists this field will tell you the file size If the file does not exist this field will be 0 Use a binary write command to set the value of the Control field in the configuration set bulk data CSR to 0x02 Setting the value to 0x02 places the camera in read mode Use a binary command to do a bulk data read from the camera The binary comm
188. write commands listed in the tables on pages 4 17 through 4 42 only data within a specified range or a specified group of values is valid If the data in a write command is not within the allowed range or specified group of allowed val ues the camera will not execute the write command Basler L400k Configuring the Camera 4 3 2 Basic Read Write Command Explanations 4 3 2 1 Read Command This section includes a text description the hex digits included in a command message used to read the Status field of the Test Image Mode CSR see page 4 33 The intent of this section is to give you a basic understanding of the elements included in a read command Sample code that illustrates how to send a read command is available from Basler see Section 4 4 The hex digits included in the read command are 0x01 OxOC 0x01 0x00 0x18 0x01 0x03 0x01 isthe BFS field The value in the BFS field is always 0x01 OxOC isthe FTF field The hex value of OxOC in the FTF field converts to a binary value of 0600001100 Bits 7 through 3 of the binary value indicate the OpCode As shown in the table on page 4 45 an OpCode value of 0500001 indicates that this is a read command frame Bit 2 indicates the presence or absence of a BCC in the frame As shown in the table on page 4 45 when this bit is set to 0b1 it indicates that a BCC is present Bits 1 and 0 indicate the AddrLen As shown in the table on page 4 46 a value of 0b00 for
189. x digits included in a command message used to write a value of 0x01 to the Mode field of the Test Image Mode CSR see page 4 33 The intent of this section is to give you a basic understanding of the elements included in a write command Sample code that illustrates how to send a write command is available from Basler see Section 4 4 The hex digits included in the write command are 0x01 0x04 0x01 0x01 0x18 0x01 0x1D 0x03 0x01 0x04 0x01 0x01 0x01 0x1D 0x03 is the BFS field The value in the BFS field is always 0x01 is the FTF field The hex value of 0x04 in the FTF field converts to a binary value of 0b00000100 Bits 7 through 3 of the binary value indicate the OpCode As shown in the table on page 4 45 an OpCode value of 0b00000 indicates that this is a write command frame Bit 2 indicates the presence or absence of a BCC in the frame As shown in the table on page 4 45 when this bit is set to 0b1 it indicates that a BCC is present Bits 1 through 0 indicate the AddrLen As shown in the table on page 4 46 a value of 0b00 for the AddrLen indicates that the Address field in this frame contains a 16 bit address If you check the table on page 4 33 you will find that the address for the Mode field of the Test Image CSR is 0x1801 a 16 bit address You are free to use any supported AddrLen as long as the CSR address will fit into it Is the DataLen field This field indicates the data size in bytes
190. y image 6 5 RS 644 serial communication 6 8 two line averaging changes to line rate 3 33 3 35 explained ec id penre ra eee ea 3 33 Setting openers ees Bee bee 3 35 V video data output modes changes to line rate 3 3 dual separated tap 2 17 d altap bossa ia a ici 2 14 Setting ise veu MeL ees 3 3 Single tap ooccocccccccc eee 2 12 W Weight ea i is E E eee 1 3 Work Set uc ca e ead bees 3 43 Basler L400k
191. yte Type Read Write Description Writing an integer value to this field selects a bulk data control function 0x00 Enumerate 0x01 ENext 0x02 Read 0x03 Write 0x05 Activate 0x06 Create Field Name Info Offset 0x0002 Size 1 Byte Type Read only Description If you are performing a bulk data read or write operation this field will indicate when no more data exits 0x00 More data exists 0x01 No more data exists 0x03 File operation error 0x04 This is an activated file Field Name File Name Offset 0x0003 Size 20 Bytes Type Read Write Description Character string indicating the name of a bulk data file The field contains 20 characters left aligned zero padded Field Name Size Offset 0x0017 Size 4 Bytes Type Read only Description Ifthe file name refers to an already existing bulk data file this field will contain the file size in bytes Otherwise the field contains zeros Field Name Data Offset 0x001B Size Varies Type Read Write Description Byte sized register that is used to sequentially write to or read from a bulk data file You can save up to four configuration set files in the non volatile memory There is a restriction on naming the files that hold the saved configuration sets They must be named UserSet01 UserSet02 UserSet03 or UserSet04 Basler L400k 4 41 Configuring the Camera 4 42 Shading Value CSR See Section 4 2 3 1 for inform
192. ytes in this field are interpreted as follows Byte 1 Low byte of the max value Byte 2 High byte of the max value Field Name Increment Offset 0x0007 Size 2 Bytes Type Read only Description An integer value indicating the increment for the high pixel threshold setting The 2 bytes in this field are interpreted as follows Byte 1 Low byte of the max value Byte 2 High byte of the max value 4 30 Basler L400k Configuring the Camera Shading Mode CSR Register Base Address 0x2000 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control register 0x00 The register is not available 0x01 The register is available All related settings are OK 0x80 A value in the register is set out of range Field Name Mode Offset 0x0001 Size 1 Byte Type Read Write Description Writing an integer value to this field sets the shading correction mode 0x00 Shading correction disabled 0x01 Enable DSNU shading correction only 0x02 Enable PRNU shading correction only 0x03 Enable DSNU and PRNU shading correction See Section 3 9 1 for more information about shading correction Shading Value Generate CSR Register Base Address 0x2100 Field Name Register Status Offset 0x0000 Size 1 Byte Type Read only Description The integer value in this field indicates the status of this control regist

Draft

Contents

Download Pdf Manuals

Related Search

Related Contents