3 - National Instruments
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1. NO Sensor Controller Module Connector Type of connector Hirschmann MLK 872 860 501 Number of pins 5 Connector pin assignment Pin 1 Battery red Pin 2 Ground black Pin 3 CAN Low blue Pin 4 CAN High orange Pin 5 Address Switch purple Pulling pin 5 to ground changes the CAN transmit ID of the Sensor Control Module so that two NOx Sensor Control Modules can be added to the same network Sensor Control Modules SCM with pin 5 floating are channel 1 and SCMs with pin 5 grounded are channel 2 Drivven Inc 2010 e NO Sensor USB Module Kit User s Manual e D000021 e Rev A Drivven Inc NO Sensor Module Kit USB Platform Compatibility The NI USB 8473 will work on any windows based PC meeting the minimum requirements below e Hardware o Windows 7 Vista XP 2000 o Minimum of 1 GB of RAM o Pentium 4 M or equivalent processor o USB port that supports 250 mA at 5 VDC Software and Activation The NO Sensor USB Module Kit is provided with an installer package which may be downloaded from Drivven s Sharepoint website after obtaining login access from Drivven User s may go to http portal drivven com SoftwareDownload and enter the provided username and password to gain access to the specific product installer packages which have been purchased This package can be installed for two different purposes First if the end user is familiar with LabVIEW and has a LabVIEW development license then the installer package should2. VES canstion Ah s A NI CAN Device 1 Bat 12V DC e Each leg from the junction is 4 feet long _Gnd_7 Power Supply e All wires are 18 AWG e 120ohm resistors across CAN Low and CAN High near the sensor NI CAN devices connect to the harness through a female DB 9 connector CAN Ground is connected to Ground near junction 2 Sensor Harness Sensor 1 SAN Low 2 A AM NI CAN Device N CAN Gne 16 A sensor 2 f i 12V DC Power Supply e Each leg from the junction is 4 feet long e All wires are 18 AWG e 120ohm resistors across CAN Low and CAN High near sensor 1 and 2 e NI CAN devices connect to the harness through a female DB 9 connector e CAN Ground is connected to Ground near junction e Add Sw should be connected to ground at the power supply Drivven Inc 2010 e NO Sensor USB Module Kit User s Manual e D000021 e Rev A 25
3. code and source of an error throughout the program so that it can be displayed at closing device not found This Boolean indicator is ttue when no CAN device either USB serial PCI or PXI could be found during the initialization process This is output for troubleshooting purposes initialization failed Boolean indicator that is TRUE when the initialization process fails after 100 attempts This output will not be true unless there is an interruption in the USB or CAN communications for an extended period of time Drivven Inc 2010 NO Sensor USB Module Kit User s Manual e DO00021 Rev A 17 Drivven Inc NO Sensor Module Kit NOx CAN R amp W_revA vi The NOx CAN read and write VI should be placed in its own while loop as shown in the example Sensor Control Modules SCM with pin 5 floating are channel 1 and SCMs with pin 5 grounded are channel 2 MOK CAN REW rei Sensor lEnable SEENEN ER GEES Sensor Enable poania ea D TD chal StatusCluster_in kl kenen StatusCluster out Tx ID Datautpnut Chand Hait Seen Datadutput Chan Ha Sensor1 Enable A control that either enables or disables the channel 1 internal heater and communication These heaters should not be turned on unless the user is positive that the sensor is not exposed to water droplets from condensation Sensor2Enable A control that either enables or disables a broadcast of a CAN message that turns channel 2 s sensor s internal heaters on Th
4. 00 00 000 FM 12 31 1903 RAID 16F00ES1 NOx ernsoriiata Sensor Supply Status NOT AVAILABLE KC Sensor Temperature Status NOT 4 4IL46LE KC NOx Signal Status NOT 4 4ILABLE ay o2 Signal Status NOT amp 4ILA4BLE ay Heater Mode Status HESTER OFF PREHEGT Heater Circuit Status NO ERROR KC NOx Circuit Status NO ERROR K G2 Circuit Status NO ERROR KC Figure 7 Stand Alone Executable Sensor Data Tab The sensor data tab displays a text based display of all information regarding sensor 1 and sensor 2 A graphical display of the NOx and O2 collected can be seen in the graphs tab The number of data points displayed is set with the Data Points control Mix USR vi File Edit Help DRIVVE CAN Setup Sensor Data Graphs Save Data Nos PRM 2 1 1 1 T 1 06 26 54 PM O6 26sSF PM 06 2700 PM O62 PM 0627 06 PM 06 27 03 PM Time Figure 8 Stand Alone Executable Graph Tab NOx amp O2 USB Sensor Data Points sl 500 Nex PPM WENG e 8 1 z l 1 O6 27 12 PM 06 27 15 PM 06 27 19 PM Drivven Inc 2010 NO Sensor USB Module Kit User s Manual e D000021 e Rev A 12 Drivven Inc NO Sensor Module Kit File Edit Help DRIVVEN NOx amp 02USB Sensor EE E 500 Figure 9 Stand Alone Executable Save Data Tab The Save Data tab contains the controls so that the current data displayed on the graphs can be saved to a text file in a designated location When e
5. 06 00 00 PM Time qe 05 59 59 PM NG USB App lyproj My Computer Figure 13 NOx _USB_Example vi Front Panel All of the VIs included with the NOx Sensor Module Kit along with an example application with the Vis setup can be found within the project NOx_USB_Example lvproj The project provides a way of verifying that all of the dependent libraries are properly installed on the computer being used The example application is setup to give the end user a starting point for developing their own application that meets their needs This example is documented in more detail within the block diagram Each of the inputs and outputs of the VIs included in the NOx Sensor Module kit are described in more detail below Driven Inc 2010 NO Sensor USB Module Kit User s Manual e D000021 e Rev A 15 Drivven Inc NO Sensor Module Kit Example Application Indicators and Controls Description Data Buffer The number of elements to be collected in a streaming buffer This buffer is displayed on the graph and saved to a file when the SaveData button is used Whenever this value is changed the buffer needs to be reset before the change will be applied ResetBuffer Reset the streaming buffer to clear erroneous data from the graph and redefine the size of the buffer Re Initialize Forces the program to run through the CAN bus initialization process and clears errors if possible Interface The interface name of the port being used to connect to th
6. 1KB DAT File 6 14 2010 3 01 PM eS Uep Mos dat 1KB DAT File 6 15 2010 10 09 AM E USB_NOx dat Notepad Sel File Edt Format wiew Help ABRO B9SQ ACTC M3 B 4 AGM4 EPZF AXXP WHR 9 Li ADZH MHAZ AQGO KFIS A4K5C 3PTN AECF DBBY wt Figure 4 USB_NOx dat Placed within the Correct Directory with a list of Activation Codes Requirements The Drivven USB based VIs require gt LabVIEW 8 6 or higher Base Development System gt NI CAN 2 6 3 Using the standalone executable requires gt LabVIEW Runtime Engine 2009 gt NI CAN 2 6 3 The Runtime Engine may be downloaded from the following address http joule ni com nidu cds view p id 1383 lang en or search www ni com for LabVIEW Runtime Engine 2009 The LabVIEW Runtime installer is 160 Mb NI CAN 2 6 3 may be downloaded from the NI website or found on the installation disk that comes with the NI USB 8473 The NO USB Sensor Module Kit is provided with all of the necessary VIs to communicate with the NOx Sensor Control Module over CAN An example LabVIEW project is provided to show the end user a recommended setup using the provided VIs The end user is free to modify the top level VI using LabVIEW 8 6 or higher in order to integrate the example with existing DAQ code or modify to add additional functionality NOx CAN Initialize rewik wi NOx CAN R amp W re Interface Status Cluster Sensor lEnable dacvene cies Na aa NA e one device not Found SensorZEnable 1777111x R ID
7. NO Sensor Module Kit NOx CAN Close _revA vi This VI should be placed outside of all while loops so that it is the last thing that runs during a shut down procedure as shown in the example This VI closes the CAN read and write process and turns off any connected sensors NOx CAN Close reva vi StatusClust ia ale ErrorOouf StatusCluster A cluster that passes information between the read amp write process and the close process zg ObjHandle in The object handle for all subsequent NI CAN VIs for the communication object that is opened during the initialization process Error in Passes the status code and source of an error on through the program so that it can be output through ErrorOut usak TX ID ID of the CAN message that was broadcast to the Sensor Control Module This value is passed within this cluster so that the close VI can shut down the Sensor Control Module so that the sensor isn t accidentally left on ErrorOut Standard LabVIEW error cluster output from all Vis involved in the CAN network interface Driven Inc 2010 NO Sensor USB Module Kit User s Manual e D000021 e Rev A 23 Drivven Inc NO Sensor Module Kit Collect_Buffer vi This VI collects data output from the read and write VI and places it into a streaming buffer that can be used for graphing or data acquisition purposes It is not locked so it can be modified internally This was done so that end users can adjust this VI as needed
8. NO Sensor Module Kit USB Sub VI Documentation NOK CAN Initialize_revA vi The NOK CAN Initialize VI should be placed outside of the while loop which calls NOx_CAN_R amp W_revA vi as shown in the example Within this VI the toolkit is activated so this VI must be the first NOx USB toolkit VI to run in a program For ideas on how to layout the structure of a custom application using these VIs please refer to the example application The NI USB 8473 CAN Module properties are automatically set within this VI to the following values Start On Open TRUE Baud Rate 250 Kbps Read Queue Length 25 frames Write Queue Length 25 frames Standard Comparator 0 Standard Mask 0 Extended Comparator 0 Extended Mask 0 Other CAN nodes may be connected to the same CAN bus as long as they conform to the above properties NOx CAN Initialize reva y i Interface StatusCluster wen initialization Failed rek Interface A string input that describes the name of the CAN device that is being used to connect to the Sensor Control Module The name of the CAN device is the same as what is specified in NI Measurement amp Automation Explorer StatusCluster A cluster that passes information between the Initialization process and the read amp write process usi ObjHandle Out The object handle for all subsequent NI CAN VIs for the communication object that is opened during the initialization process Error Out Passes the status
9. System o Je Data Neighborhood es Devices and Interfaces WSB 8473 H CANI 4 E Transceiver High Speed Transceiver type E Transceiver Name Philips 7141041 Transceiver brand name a 1 i D ee E Baud Rate 250 000 kBaud Baud rate selected by the user Attribute Value Description E Interface Name CAN Interface name assigned by the user E Location Part 1 InterFace location on the board a Network Devices E Sample Point ay 5 Sample point within the bit transmission GE NI Switch Executive Virtual Devices E ETRO 0x01 Bit Timing Register 0 value E P PXI System Unidentified EETRI Oric Bit Timing Reaister 1 value E i Serial amp Parallel DI Historical Data o da Scales Gl Software 1 II DI Drivers 4 ES Remote Systems i i E Port Properties Figure 11 Measurement amp Automation Explorer Window 9 Turn the NOx Sensor Control Module on NOTE When the sensor is on the plastic cover should always be removed The sensor gets very hot so if you are bench testing plan ahead as to where you place the sensor 10 Make sure that the Sensor1Enable on the CAN setup tab button is depressed this is the default position 11 Enjoy your NOx and O2 data After following these directions the sensor should go through a warm up procedure before showing valid data for NOx PPM and O2 Yo on the Sensor Data and Graphs tab Drivven Inc 2010 NO Sensor USB Module Kit User s Manual e DO00021 Rev A 14 Dri
10. be run on the intended development computer to work with the installed open source example project Second if the end user does not have a LabVIEW development license then they can run the installed stand alone executable for displaying recording and saving NOx ppm and 02 measurements Regardless of the final intended use after installing the package a Start gt Programs gt Drivven gt ProductRelease menu item will be added to the start menu The specific product will have an example LabVIEW project appear under the Examples menu and the user manual will appear under the Manuals menu User s may copy and open the example project to experiment with the USB module or use it as a starting point for a new application All LabVIEW software files example projects stand alone executable and documentation are installed to C Program Files National Instruments LabVIEW X X vi lib addons DrivvenProductRelease When working with block diagrams user s will notice a Drivven function palette added to the standard LabVIEW palette containing all of the included VIs shown below VIs for a specific Drivven product will be categorized according to product name Also some Drivven products will install RT and FPGA VIs under a General function palette which is intended to be used across multiple products Activation After installing the NOx USB kit it must be activated in order to enable its components The serial number of
11. output and sensor status relating to channel 2 NOxDataFrames 2 Number of frames for channel 2 recorded and converted since the last time the USB CAN modules cue was emptied This number also indicates the number of values that were overwritten in the TimeStamp NOx O2 array that are then collected by the Collect_Buffer VI NOxSensorData 2 A cluster of sensor status ring indicators for channel 2 Sensor Supply Status Provides status information about the NOx sensor power supply The following status messages are provided NOT IN RANGE SUPPLY IN RANGE ERROR NOT AVAILABLE Sensor Temperature Status Provides status information about the NOx sensor heater temperature The following status messages are provided NOT AT TEMPERATURE Driven Inc 2010 NO Sensor USB Module Kit User s Manual e D000021 e Rev A 20 Drivven Inc NO Sensor Module Kit AT TEMPERATURE ERROR NOT AVAILABLE NOx Signal Status Provides status information about the NOx sensor NOx ppm measurement The following status messages are provided NOT VALID VALID ERROR NOT AVAILABLE O2 Signal Status Provides status information about the NOx sensor O2 measurement The following status messages are provided NOT VALID VALID ERROR NOT AVAILABLE Heater Mode Status Provides status information about the NOx sensor heater control mode The following status messages are provided AUTO MODE HEATUP SLOPE 3 OR 4 HEATUP SLOPE 1 OR 2 HEATER
12. t accidentally left on DataOutput_Chan1 Calibrated data output and sensor status relating to channel 1 Driven Inc 2010 NO Sensor USB Module Kit User s Manual e D000021 e Rev A 18 Drivven Inc NO Sensor Module Kit NOxDataFrames 1 Number of frames for channel 1 recorded and converted since the last time the USB CAN modules cue was emptied This number also indicates the number of values that were overwritten in the TimeStamp NOx O2 array that are then collected by the Collect_Buffer VI NOxSensorData 1 A cluster of sensor status ring indicators for channel 1 Drivven Inc 2010 e Sensor Supply Status Provides status information about the NOx sensor power supply The following status messages are provided NOT IN RANGE SUPPLY IN RANGE ERROR NOT AVAILABLE Sensor Temperature Status Provides status information about the NOx sensor heater temperature The following status messages are provided NOT AT TEMPERATURE AT TEMPERATURE ERROR NOT AVAILABLE NOx Signal Status Provides status information about the NOx sensor NOx ppm measurement The following status messages are provided NOT VALID VALID ERROR NOT AVAILABLE O2 Signal Status Provides status information about the NOx sensor O2 measurement The following status messages are provided NOT VALID VALID ERROR NOT AVAILABLE Heater Mode Status Provides status information about the NOx sensor heater control mode The following st
13. the CAN device being used with the toolkit is used to generate an activation code The serial number of the CAN device typically a 7 digit hex number located on the bottom of the USB 8473 must be e mailed to license drivven com along with your name company name address and telephone number Please allow 1 3 business days to validate your account and generate a key An activation key or keys 32 Characters ex 9DCJ RN79 QBEE TPKW BBAB GT3Z RXYC CFCW will be generated by Drivven and sent to the customer via reply email The key s will contain only the following characters AB CDEFGHJKLMNPQRS TWXY2Z34 79 The activation key s may expire at a specific time if configured to do so In order for the stand alone executable and LabVIEW VIs to run a text file called USB_NOx dat must be placed in c ni rt system Within the USB_NOx dat file the activation keys for the CAN devices that you are intending to use with the NOx USB kit need to be listed An example of what the final placement of this file should look like is shown below in Figure A When using the VI toolkit the NOK CAN Initialize _revA vi needs to be the first VI from the toolkit to be called It will validate the NOx USB license and unlock the remaining NOx USB VIs Driven Inc 2010 NO Sensor USB Module Kit User s Manual e D000021 e Rev A 9 Drivven Inc NO Sensor Module Kit pack s gt a JO Search 1 Folders Address i Name Size Type Date Modified E uDCAT dat
14. Actual initialization Failed StatusCluster in A jm StatusCluster_out Tx ID Datautpnut Chand Rex ID 1 Seen DeteCutout Chan Rea ID 2 Collect_Buffer vi NOK CAN Close reva vi MoxDataFrames TimeStamp NOx O2 OutputBufter StatusCluster reng e ErrorQue OutputBufferSize i ResetBurfer Figure 5 NOx_CAN_Intialize vi NOx CAN R amp W vi NOK CAN Close vi and Collect_Buffer vi icons with leads Driven Inc 2010 NO Sensor USB Module Kit User s Manual e D000021 e Rev A 10 Drivven Inc NO Sensor Module Kit USB Stand Alone Executable Documentation The stand alone executable included with the NOx USB kit is based on the NOx_USB_example vi that is included with the LabVIEW example project For convenience the stand alone executable has additional features for troubleshooting and saving data easily This section will explain some of the controls indicators and functionality of the stand alone executable NOx_USB DOR File Edit Help DRIVVEN NOx amp 02 USB Sensor ES Zem CANO Ei USB a4 Fai P1 14EF ana 6 a gur 18FEDFO0 d E Cp JC e Figure 6 Stand Alone Executable CAN Setup Tab The USB NOx stand alone executable is broken down into 4 different tabs which are shown in Figure 6 7 8 and 9 The CAN setup tab contains all of the controls and indicators needed to get the system up and running In order to get the program running correctly the only CAN setting that needs to be set is th
15. DRIVVEN NO Sensor Kit User s Manual USB Module Platform D000021 Rev A D000024 Rev A August 2010 Drivven Inc e 12001 Network Blvd Bldg E Suite 110 e San Antonio Texas 78249 lt USA Phone 210 248 9308 Web www drivven com E mail info drivven com Drivven Inc NO Sensor Module Kit Contents IETS WON a ns tse ce ee ces Naga AN Ka aan Ega aa ag cetera ec ne Seuss eee ice ate ead datos ce anaa aa ame aa kaa satin 3 System Diagram BE 4 EUKON EE 9 Powering the Hardware bk 5 Continental Smart NO Sensor Module Specifications ccccccccsecccceeececeeeeeeeeceseeeceeaeeesaneessaeees 6 USB Platform Compatibility EE 9 Sotware and ed e EE 9 USB Stand Alone Executable DOCUMENTATION ec ceecccceeeeeeeeeeeeeeceeeeeeeaeeeeeeaeaueeesaaeeeessaeeeeaees 11 Exploring the USB Example roiect E 15 JoB SUD YV DOCUMSNATON EE 17 Wining Harness Ree Die VE le EE 25 Drivven Inc 2010 NO Sensor USB Module Kit User s Manual e D000021 Rev A 2 Drivven Inc NO Sensor Module Kit Introduction The Drivven USB NO Sensor Module Kits provides an interface for one or two NO and O exhaust gas sensors If you cannot find the answers to your questions within this manual feel free to contact us directly The more information you can provide us with the better we will be able to assist you Features gt 1 Ch or 2 Ch system gt Two signals output o NO concentration ppm o O concentration Yo Sensor
16. IEW runtime engine and with NI CAN 2 6 Under My System expand the Devices and Interfaces section If your NI USB 8473 is plugged into an available USB port on your computer then it should be visible Expanding the USB 8473 tree will show the properties of your device as shown in Figure 6 Right clicking on the port highlighted in Figure 6 allows you to open up the port properties and change the interface name Typically if you only have one CAN device with one port the interface name is CANO 5 On the NOx _USB exe CAN setup tab select the correct interface name as defined by Measurement amp Automation Explorer for the device that is connected to the NOx Sensor Control Module 6 In NOx_USB exe go to the Help menu and select Send Activation Request Email and fill out the email and send it Or if you use a web based email service send an email to license drivven com with your name company phone number and serial number 7 After receiving your activation code from Drivven follow the activation directions in the Software and Activation section to complete your activation 8 Verify that the wiring harness is plugged into the NI USB 8473 NOx Sensor Control Module and power supply Please refer to the attached wire labels and NOx Sensor Control Module hardware specifications for pin names CANT Measurement amp Automation Explorer File Edit View Tools Help Configuration BS Bus Monitor Fy Properties E De My
17. NOx sensor modules that can be found in various OEM engine applications All of these Sensor Control Modules communicate over CAN They likely have a different part number and different proprietary calibration Each OEM sensor is programmed with proprietary communication protocols Drivven cannot support those sensors The NOx sensor modules provided by Drivven are engineering samples procured directly from Continental If you already have the correct sensor module then you may purchase the NOx sensor module kit without the included sensor module Please contact Drivven for a quote The wiring harness that is included with the USB NOx kit is a five foot cable that connects to the NOx Sensor Control Module and then splits into two cables for the USB 8473 module and an external power supply The first cable connects to the USB 8473 with a female DB 9 connector A terminating resistor of approximately 120 ohms is hidden inside this cable near the NOx Sensor Control Module between the CAN High and CAN Low wires The second cable provides three un terminated leads for connecting to a power supply 2 leads and for address selection of the NOx sensor module 1 lead If the cable is to be extended CAN network wiring guidelines must be followed Please refer to the operating instructions provided with the NI USB 8473 CAN module for more details Powering the Hardware The NO Sensor Controller Module requires power from a range of 12V to 16V with a continuo
18. OFF PREHEAT Heater Circuit Status Provides status information about the NOx sensor heater circuit The following status messages are provided OPEN WIRE SHORT CIRCUIT NO ERROR NOx Circuit Status Provides status information about the NOx sensor NOx measurement circuit The following status messages are provided OPEN WIRE SHORT CIRCUIT NO ERROR O2 Circuit Status Provides status information about the NOx sensor O2 measurement circuit The following status messages are provided OPEN WIRE SHORT CIRCUIT NO ERROR TimeStamp NOx O2 2 A two dimensional array having 3 columns of data in the Drivven Inc 2010 NO Sensor USB Module Kit User s Manual e DO00021 Rev A 21 Drivven Inc NO Sensor Module Kit following order TimeStamp seconds since January 1 1904 NOx ppm and O2 The array has a fixed number of 20 rows Each call to NOx_CAN R amp W_revA vi takes all buffered CAN messages from the CAN device since the last call and filters out every message except for the NOx sensor module messages identified by the specified RxID These new messages overwrite the TimeStamp NOx O2 array from the top NOxDataFrames identifies the number of new data points received into the array NOx Module Present 2 Indicates whether the channel 2 NOx sensor is powered properly connected and detected on the CAN bus Drivven Inc 2010 NO Sensor USB Module Kit User s Manual e DO00021 Rev A 22 Drivven Inc
19. and understand the process going on internally Collect _Buffer wi MoxDataFrames TimeStamp WOx O2 OutputBurfer OukputBufferSize ResetButfer NOxDataFrames The number of values that were overwritten in the TimeStamp NOx O2 array TimeStamp NOx O2 A two dimensional array having 3 columns of data in the following order TimeStamp seconds since January 1 1904 NOx ppm and O2 The array has a fixed number of 20 rows Each call to NOx_CAN_R amp W_revA vi takes all buffered CAN messages from the CAN device since the last call and filters out every message except for the NOx sensor module messages identified by the specified RxID These new messages overwrite the TimeStamp NOx O2 array from the top NOxDataFrames identifies the number of new data points received into the array OutputBufferSize The number of elements that are held within the OutputBuffer ResetBuffer Resets the buffer and fills the entire buffer with the latest value OutputBuffer A streaming buffer of the latest number of data points that have come off the CAN bus The size of this buffer is defined by the output buffer size This is a two dimensional array that is in the same format at the TimeStamp NOx O2 array Drivven Inc 2010 NO Sensor USB Module Kit User s Manual e DO00021 Rev A 24 Drivven Inc NO Sensor Module Kit Wiring Harness Documentation 1 Sensor Harness 1Batt Sensori y ES f _2 Gnd_ Contra F WON AENLow2
20. atus messages are provided AUTO MODE HEATUP SLOPE 3 OR 4 HEATUP SLOPE 1 OR 2 HEATER OFF PREHEAT Heater Circuit Status Provides status information about the NOx sensor heater circuit The following status messages are provided NO Sensor USB Module Kit User s Manual DO00021 Rev A 19 Drivven Inc NO Sensor Module Kit OPEN WIRE SHORT CIRCUIT NO ERROR NOx Circuit Status Provides status information about the NOx sensor NOx measurement circuit The following status messages are provided OPEN WIRE SHORT CIRCUIT NO ERROR O2 Circuit Status Provides status information about the NOx sensor O2 measurement circuit The following status messages are provided OPEN WIRE SHORT CIRCUIT NO ERROR TimeStamp NOx O2 1 A two dimensional array having 3 columns of data in the following order TimeStamp seconds since January 1 1904 NOx ppm and O2 The array has a fixed number of 20 rows Each call to NOx_CAN_ R amp W_revA vi takes all buffered CAN messages from the CAN device since the last call and filters out every message except for the NOx sensor module messages identified by the specified RxID These new messages overwrite the TimeStamp NOx O2 array from the top NOxDataFrames identifies the number of new data points received into the array NOx Module Present 1 Indicates whether the channel 1 NOx sensor is powered properly connected and detected on the CAN bus DataOutput_Chan2 Calibrated data
21. controller supply voltage of 12V to 16V 24V version available Reverse battery protection on sensor controller module Wide range of applications o Gasoline Diesel o Passenger car Truck Helps to achieve emissions requirements Includes sensor controller harness Stand alone executable that can be run without the need for a LabVIEW license USB module based platform provides o Inexpensive alternative to cRIO platform o Windows PC based LabVIEW VIs VV V VV WV wv Drivven Inc 2010 NO Sensor USB Module Kit User s Manual e D000021 e Rev A 3 Drivven Inc NO Sensor Module Kit System Diagram Drivven USB NOx Sensor Module Kit NI USB 8473 NYO O gsn 4 A ZZ Sensor SE Control ES Module s me A 0 Zv8 daSn IN optional second sensor Figure 1 NOx USB System Drawing Driven Inc 2010 NO Sensor USB Module Kit User s Manual e D000021 e Rev A Drivven Inc NO Sensor Module Kit Hardware The USB based kit provides the following hardware 1xContinental Uninox Smart NO Sensor with integrated sensor controller module SWK96622A 1x Sensor bung 1x 5 ft Wiring harness for NO sensor controller module connection to USB 8473 and power supply 1x National Instruments USB 8473 USB high speed CAN module The Drivven NOx USB software toolkit is only compatible with the Continental Uninox Smart NOx Sensor having a part number of 5WK96622A There are many additional Continental
22. e NOx Sensor Control Module This is defined changed in Measurement amp Automation Explorer Sensor1Enable Transmits a CAN message to the channel 1 NOx Sensor Control Module to turn the sensor on Sensor 1 is defined as a control module that has pin 5 floating R amp W iterations Loop count of the timed loop that contains the read and write VI Running Initialization Indicates that the initialization of the CAN bus is running Initialization Error Indicates that the initialization process timed out or ran into an error it couldn t clear Read Write Error Indicates that during the read write process an error was encountered Sensor 1 Present Indicates that messages are being received from a channel 1 NOx Sensor Control Module RX ID 1 The CAN frame ID received from a channel 1 NOx Sensor Control Module Should not be changed RX ID Actual Any CAN frame ID that is being read on the CAN bus TX ID The ID of the CAN frame that is transmitted to control the NOx Sensor Control Modules Should not be changed NOx PPM Current NOx PPM reading from sensor 1 O2 Current O2 reading from sensor 1 TimeStamp Time that the most current values were received for channel 1 NOxSensorData 1 Display information describing the current state of the sensor for channel 1 Sensor Graph Graph displaying the buffer when in 1 sensor mode Driven Inc 2010 NO Sensor USB Module Kit User s Manual e D000021 e Rev A 16 Drivven Inc
23. e interface Setting up the correct interface is important and should be double checked by running Measurement and Automation Explorer More directions on setting this up can be found below in the list of things to get the system running the first time The RX ID1 RX ID2 and TX ID should not be changed from their default values unless you completely understand the meaning and impact of the change CAN queue is an indicator showing the number of CAN data frames coming in off the CAN bus from NOx Sensor Control Modules If the queue reaches 100 of the progress bar than CAN data frames are coming in faster than data can be calculated This should not occur unless something is wrong Drivven Inc 2010 NO Sensor USB Module Kit User s Manual e DO00021 Rev A 11 Drivven Inc NOx_USB i File Edit Help DRIVVEN NOx amp 02 USB Sensor CON Setup Sensor Data Graphs Save Data Sensor 1 Data Mox ppm 1 2 58023 SIKOR 20 693 Timestamp 1 06 26 39 702 PM 0610 2010 RA ID LSFO0FS2 NOx Sensorbata 1 Sensor Supply Status SUPPLY IN RAMCE SCH Sensor Temperature Status AT TEMPERATURE ay NOx Signal Status VELID Ke oz Signal Status VALID SCH Heater Mode Status AUTO MODE wg l Heater Circuit Status NO ERROR SCH NO Circuit Status NO ERROR Ea Oe Circuit Status NO ERROR my NO Sensor Module Kit Data Points isoo MK Sensor 2 Data NOx ppm 2 ja SICA if Timestamp 2 46
24. ese heaters should not be turned on unless the user is positive that the sensor is not exposed to water droplets from condensation a StatusCluster_in A cluster that passes information between the Initialization process and the read amp write process usi ObjHandle In The object handle for all subsequent NI CAN VIs for the communication object that is opened during the initialization process Error In Passes the status code and source of an error throughout the program so that it can be displayed at closing TX ID ID of the CAN message that is broadcast to the Sensor Control Module RX ID 1 ID of the CAN message that should be received from the Sensor Control Module for channel 1 RX ID 2 ID of the CAN message that should be received from the Sensor Control Module for channel 2 Rx IDActual ID of the CAN messages received from the CAN bus CE A Ee StatusCluster_out A cluster that passes information between the read amp write process and the close process sz ObjHandle Out The object handle for all subsequent NI CAN VIs for the communication object that is opened during the initialization process Error Out Passes the status code and source of an error on through the program so that it can be displayed at closing lus TX ID ID of the CAN message that is broadcast to the Sensor Control Module This value is passed within this cluster so that the close VI can shut down the Sensor Control Module so that the sensor isn
25. ntering the file path don t forget to add a file extension In the saved data file the first column of data is a LabVIEW time stamp followed by a column of NOx data and then O2 data If there are two sensors then the output file has 6 columns of data as shown below in Figure 10 O2 1timestamp2 NOx2 02 2 15479 3 3BE 09 Gamm 4 62 79 3 3E 09 F200 Ia ei 15 479 3 36E 09 200 4 62 15 479 3 36E 09 200 4 62 15 479 3 36E 09 200 4 62 15 479 3 36E 09 200 4 62 15 479 3 36E 09 200 4 62 15 479 3 36E 09 200 4 62 15 479 3 36E 09 200 4 62 15 479 3 36F409 200 4 62 15 479 200 4 62 el Se Figure 10 Saved Data Output from NOx_USB stand alone application Because this stand alone application was based on the provided example many of the control and indicator descriptions for the example VI are applicable to the stand alone application Tip strips and descriptions of controls and indicators can also be seen by right clicking on an object and then selecting Description and Tip Driven Inc 2010 NO Sensor USB Module Kit User s Manual e D000021 e Rev A 13 Drivven Inc NO Sensor Module Kit To run the application for the first time 1 Install LabVIEW Runtime Engine 2009 NI CAN 2 6 3 and the Drivven NOx package installer 2 Plug the NI USB 8473 into an available USB port 3 Go to the start menu gt All Programs gt Drivven gt NOx USB and run NOx_USB exe 4 Run Measurement amp Automation Explorer installed with the LabV
26. ontroller temperature range of 85 C to 100 C allowed for up to 10 minutes Minimum storage temperature 40 C Maximum storage temperature 120 C Maximum storage time 2 years Maximum exhaust gas temperature 800 C Exhaust gas temperature of 950 C allowed up to 100 hours Maximum sensor hexagon screw temperature 620 C Sensor hexagon screw temperature of 650 C allowed for up to 100 hours Maximum sensor grommet temperature 200 C Sensor grommet temperature of 230 C allowed for up to 100 hours Minimum preheating sensor temperature 80 C Maximum preheating sensor temperature 120 C Lifespan approved by life cycle pattern 2000 hours or 120K miles NO Sensor Electrical Characteristics NO Sensor Supply Voltage Minimum supply voltage 12 V Maximum supply voltage 16 V Driven Inc 2010 NO Sensor USB Module Kit User s Manual e D000021 e Rev A 6 Drivven Inc NO Sensor Module Kit If supply voltage gt 32 V sensor is not operated NO Sensor Supply Current Average supply current 0 6 A Peak supply current at switch on 12A Inrush current 20A Supply Power Maximum supply power 20 W NO Sensor Misc Thread Torque 50 Nm Lubrication Anti Seize Compound Drivven Inc 2010 NO Sensor USB Module Kit User s Manual e D000021 Rev A T Drivven Inc NO Sensor Module Kit 80 Exhaust gas pipe Figure 2 Installation Position 90 10 ara Figure 3 Tilt Angle in Gas Flow Direction
27. us current of 0 6A and a peak current of 12A The maximum power requirement is 20W which typically occurs when the heating element is being turned on from a cold state If you are using two sensors make sure to double the capacity of your power supply Driven Inc 2010 NO Sensor USB Module Kit User s Manual e D000021 e Rev A 5 Drivven Inc NO Sensor Module Kit Continental Smart NO Sensor Module Specifications Table 2 NO Sensor Performance Specifications Output Measurement Response Time Data Update 33 66 0 ppm TOPPM 41300 E 4 S ms fresh 0 3000 ppm 100 1500 ppm 10 1650 ms aged 1500 3000 ppm undefined 50 ms interval A 0 90 1 4 fresh 250 kBaud 0 A 1 00 0 13 fresh 1000 ms fresh 0 A 1 00 0 25 aged 1300 ms aged 13 A 2 65 0 32 fresh 12 21 NO Sensor Light off times Conditions Air T 25 5 C BattV 28V Heater turned ON NO lt 100 sec O lt 80 sec NO Sensor Preheating Function If the power supply is on the sensor is in preheating mode until the Sensor Enable Boolean is set to TRUE If the Sensor Enable Boolean is set to FALSE the sensor returns to preheating mode The preheating mode protects the sensor from mechanical cracks caused by water splash NO Sensor Operating Temperature Ranges Minimum sensor module controller temperature 40 C Maximum sensor module controller temperature 105 C Sensor module c
28. vven Inc NO Sensor Module Kit Exploring the USB Example Project File Edit View Project y de L OM D LI t er Qperate Tools Window Help er FR PR FA Nox USB Example vi Nom CAN Rew revh wi NO CAN Initialize rewa vi Nox CAN Clase reub al Collect_Butfer wi Dependencies Build Specifications Figure 12 Project Explorer Window NOx_USB_Example vi Front Panel on NOx_USB_App lvproj My Computer File Edit view Project Operate Tools Window Help ol lt using the stop button shuts off sensor and STOP closes CAN communication using abort button crashes exe Forcing exit GraphBufter 4 500 Resetbuffer Re Initialize gt LEI interface l TCANG Sensor 1 Enable Rew iterations 46 Running Initialization g Initialization Error Read Write Error Sensor 1 Present Keyactivated Re ID 1 aarme RY IDActual mme Ta ID IT 36FEDFOO NOx ppm io l OZ fi bo Timestamp oe op 00 00 PM 12 31 1903 NOxSensorData 1 Sensor Supply Status NOT AVAILABLE a Sensor Temperature Status NOT AVAILABLE a Nice Signal Status NOT AVAILABLE a OZ Signal Status NOT AVAILABLE a Heater Mode Status HEATER OFF PREHEAT Heater Circuit Status DME SC MO Circuit Status DME KC Oz Circuit Status DME CR 200 190 180 170 160 150 140 130 120 110 100 30 a0 ZU 0 50 40 30 20 10 Nove PPM I
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