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1. 54 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 12 Notes Document 22510 HB 1 10 E CAN Bus Tester 2 55 GEMAC Sensorik Messtechnik ASIC Design 1 2 Notes 56 Document 22510 HB 1 10 E CAN Bus Tester 2 ER ah EC e nh E E RB oO i FEF SY ele ee Ce DDP SANNE
2. Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 9 Measurement Online Trigger view 4 9 1 How to use The online trigger measurement serves for long term analysis of the bus system over several days weeks In this way both sporadic bus disturbances external EMC influences and a slowly deteriorating signal qual ity e g due to liquid in the connector can be detected For this measurement all message frames on the bus irrespective of the stations in the List of stations are subject of the online physical and logical evalua tion and any deviations from a predefined threshold value are recorded The online trigger can recognize the following trigger events E Logical events errors Active error frames Passive error frames Overload frames Acknowledge errors M Physical errors Failure to reach a critical quality level Failure to reach a critical disturbance free voltage range Exceeding of a critical edge rising Exceeding of a critical edge falling Each of these trigger events possesses a separate channel leading to a trigger when activated All are dis played irrespective of the activating of a trigger event For the duration of the activated event the TRIG GER LED lights red Figure 13 shows a screen shot of this view Measurement Selection Saving i Selection of an Saving of new Options existing measurement measurement data Response of CBT2 on triggers x
3. Weight Device Case Extra low voltage socket 2 x 9 pin D Sub connector Self powered device to USB Specification 1 1 electrically isolated BNC socket electrically isolated Aluminum sheet housing Operation 5 C 40 C Storage 20 C 60 C Operation 20 80 non condensing Storage 20 80 non condensing IP20 to EN 60529 170 mm x 134 mm x40 mm 504 mm x 354 mm x 119 mm Approx 600 g Approx 5000 g Table 2 Technical specifications cont d Warning The CBT2 is a Class A device Such devices can cause interference in residential areas In this case the plant operator can be required to take appropriate measures and to bear the costs of such measures Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 8 Scope of Supply 8 Scope of Supply 8 1 Scope of Supply Basic Set The scope of supply of the CAN Bus Tester 2 comprises the following m CAN Bus Tester CBT2 m CAN bus accessories 6 adapter sets D Sub 9 Open style M12 7 8 SAE J1939 11 SAE J1939 13 Adapter board for simple connection of oscilloscope probes USB cable 3 m BNC cable 1 5 m E Power supply AC DC adapter Type Desk power pack Input voltage 100 240 V 50 Hz 60 Hz Output voltage DC 24 V 500 mA Connection cable 2 m length with extra low voltage plug Mains power cable 1 8 m Country variants Europe Great Britain U S A Japa
4. Configure segment view 4 6 2 Wiring test With the wiring test it is possible to determine line short circuits line breaks the bus termination the loop resistances of the CAN line and the CAN power supply line and the overall line length To ensure correct bus cabling it is recommended to perform the wiring test at the beginning of any plant measurements The requirements for this measurement are CBT2 operated on the supplied power pack not via the plant CAN bus Mm CBT2 connected to the PC and to the plant CAN bus 16 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software m All bus stations removed no bus traffic bus status LED yellow Mm CAN supply voltage display approx 0 0 V Open style connector v J1939 11 connector shielded v Connector Pin Signal Error Designation Connector Pin Signal Error Designation Geri e 4 CAN_H Short circuit test 4 resistor 3 CAN_H d IEEE AE 2 CANL 1 1 4 Ohm de N Sch Le WY 5 CAN V Please solve the problem Ve Male 1 CAN V Female Termination beginning Loop resistance CAN H CAN L Termination beginning 121 Ohm Loop resistance CAN_H CAN_L 6 5 Ohm Termination end Loop resistance CAN V CAN_V Termination end 118 Ohm Cable length Cable length 99 5 m Figure 9 Wiring Test Error Figure 10 Wiring Test Successful The wiring test is performed as a sequence of four steps The test requir
5. Sensorik Messtechnik ASIC Design Problem Questions causes amp problem recovery Error frame counter e Counts continuously e CBT2 connected to PC and power supply ON LED e CBT2 detected by application software status bar e CBT2 correctly connected to plant CAN bus Level change present on the bus bus status LED green How to solve this problem e Provide for transmission activity on the CAN bus Possible causes e An incorrect baud rate has been selected Baud rate scan e There is an error in the physical bus characteristics and there are significant signal faults All Stations One Station and Online Trigger measurements cannot be started Printing and exporting e The relevant data field is disabled Questions e CBT2 connected to PC and power supply ON LED e CBT2 detected by application software status bar e CBT2 correctly connected to plant CAN bus e At least one station highlighted in the List of stations as to be measured Additionally for the Measurement One Station e One station selected How to solve this problem e Provide for transmission activity on the CAN bus How to solve this problem e Perform the desired measurement for the station s Document 22510 HB 1 10 E CAN Bus Tester 2 53 GEMAC Sensorik Messtechnik ASIC Design 1 2 Notes 12 Notes
6. 5 3 2 1 Disturbance free voltage ronde 3 3 2 1 1 Enhanced measurement of the Disturbance free voltage ronde 6 3 2 2 Edge e 6 3 2 3 General quality evel ket neuen neuen neuen nenne nnnnnnnnnnnennnnnennnnnnnnnnnennnne nennen nnnne nenn 6 3 2 4 Oscilloscope display with frame analvais ss 7 3 SONNE monitoring Fun ee CT 7 VD BUS ST gt EE a ccc meat os ne eee nc E ee EE 7 SE E Wat ee ee ee een 7 ENN WS eder 7 4 The CBT Appliealion E end 9 41 System requirements sn em EEN EET ER AEE EEEE ia 9 e gil alabez erau lue 9 4 3 General notes of OPS rada EE 10 ER 0 aate 10 1 10 4 2 FOT re er 10 eak dai berela 10 4 42 VOOID EE 11 2 4 VENN 12 TA STP SEES AEA 12 1202 ENO rame COU eenegen 13 22 3 S BUS tanie eia DEE 13 14 3 A CAN a elea el aleaz 13 BVA A gei as EE 14 4 5 Selecting the bus system CAN CANopen DeviceNet SAE J1939 02220022002202en nenn 15 4 6 Configure segment view 16 Document 22510 HB 1 10 E CAN Bus Tester 2 V GEMAC VI Sensorik Messtechnik ASIC Design Table of Contents ARSE E E EE 16 TE 16 Gaztek Baud geie dkede 17 a Bei NNN 17 4 6 5 Recording the online monttoring KEREN 17 4 6 6 Ne 18 TET NAN 18 4 6 8 List of NGOGUTSTTSTES ss 18 4 7 Measurement All Stations view 20 A71 HOR VO EE 20 4 2 Setting and Measuring EE 20 TEN NN 21 4 8 Measurement One Staton e 22 AO T HOR O UGO ee E E een een 22 482 SOWING and MEAT daa A 22 BY PN 23
7. A GEMAC Sensorik Messtechnik ASIC Design User Manual CAN Bus Tester 2 CAN Bus Tester TT ARROA GEMAC Gesellschaft f r Mikroelektronikanwendung Chemnitz mbH Phone 49 371 3377 0 Zwickauer Stra e 227 Fax 49 371 3377 272 09116 Chemnitz E mail info gemac chemnitz de Germany Web www gemac chemnitz de ER ah EC e nh E E RB oO i FEF SY ele ee Ce DDP SANNE User Manual CAN Bus Tester 2 Version 1 10 Date 2015 04 01 GEMAC Gesellschaft fur Mikroelektronikanwendung Chemnitz mbH Phone 49 371 3377 0 Zwickauer Stra e 227 Fax 49 371 3377 272 09116 Chemnitz E mail info gemac chemnitz de Germany Web www gemac chemnitz de GEMAC Sensorik Messtechnik ASIC Design Revision Ove rview Revision Overview Seber beren 2007 06 12 0 First version 2007 07 02 1 Various changes and error correction 2007 09 17 2 Protocol monitor description added 2007 11 12 3 Changes in Ordering Information and Scope of Supply 2008 01 15 4 Changes in Ordering Information and Scope of Supply 2009 05 28 5 Description of SAE J1939 and extended software amended 2010 01 25 6 Changes to new Cl new Function in Online Trigger 2010 06 07 7 Various changes and error correction 2011 05 20 8 Protocol monitor description extended License management added 2012 05 14 9 Protocol monitor CANopen description extended 2015 04 01 10 Bit timing settings appended enhanced measurem
8. SE Progress Online Trigger 40 EZ 50 ME EZ 10 08 52 20 bie 3 ss ee Display of Active Error Frame D T V Passive Error Frame total ru ntime Configuration Z overload Frame Li zech i f cknowledge Error D e ive view Setting for online trigger Ze 7 adei ed u Display of the curr active tracks trigger Serora 209 210v gag We zu points and resolution V Edge rising 17 64 17 64 0 64 signal values during Edo faing IZETE 21 64 21 64 measurement Resolution 100 ms amp gt ea B Results Oscilloscope display Ss Display of signal O 2x i Trigger on station error E values at the time and marking of the SIE of trigger error Figure 13 Measurement Online Trigger view Document 22510 HB 1 10 E CAN Bus Tester 2 25 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 9 2 Setting and measuring The requirements for this measurement are M The CBT2 is connected both to a PC and to the CAN bus plant bus status LED green or yellow HM The correct baud rate is selected After switching to the Measurement Online Trigger view View menu or toolbar you can control the mea surement using the following icons or menu functions Measure menu Starts a single measurement key combination F5 j Starts a single online trigger measurement Measuring stops automatically when the first error event occurs Starts a continuous measurement ke
9. V to 36 V The ON LED on the device then lights yellow If a mains power connection has been established this mains power connection will be used for the power sup ply 2 3 3 CAN bus connection The plant to be tested is connected at the upper D Sub 9 connector CAN on the CBT2 via an adapter ca ble Various adapter cables are available and are included in the scope of delivery The device can therefore immediately be connected to plants with the following bus connectors D Sub 9 Open style M12 7 8 SAE J1939 11 and SAE J1939 13 2 3 4 Connecting to the digital storage oscilloscope To display the signal quality of individual CAN bus stations on a DSO the CBT2 generates a station related trigger pulse To this end it is merely necessary to connect the BNC socket of the device to the external trig ger input of the oscilloscope The adapter board included in the scope of delivery is connected at the lower D Sub 9 connector PROBE ADAPTER enabling simple sampling of the signals on the data lines CAN H and CAN L and of the shield potential with the oscilloscope probes For the sampling of the CAN signal a differential sample is recommended signal line CAN_H against CAN L If two simple probes are used CH1 with CAN H against shield and CH2 with CAN L against shield the storage oscilloscope must provide mathematics functions to be able to generate the difference CH1 minus CH2 2 3 5 Connecting the device to the PC The CBT2
10. are then overwritten by the new values For this reason when opening a CBT2 document the recording is at first always deactivated If the error frame counters or the bus traffic load are reset when recording double click on Error frames or Bus traffic load in the status bar this will also have an effect on the recording values they will be reset The recording functions can be used independently of any other measurements performed on the CBT2 Document 22510 HB 1 10 E CAN Bus Tester 2 17 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 6 6 Evaluation When evaluating the measurement data you are assisted by the CBT2 application software which is able to provide for automatic evaluation of the results This function is activated deactivated via Automatic eval uation For the evaluation the following limit values must be set and will be stored in the current document Critical quality level 30 90 critical measured value if not reached Critical disturbance free voltage range 1 0 3 0 V critical measured value if not reached Critical rising edge recessive dominant 1 64 48 64 critical measured value if exceeded Critical falling edge dominant recessive 1 64 48 64 critical measured value if exceeded When the evaluation function is activated the measured values are evaluated against the set critical limit values and if necessary highlighted If any stations
11. be analyzed The Send e mail on trigger option can be selected if the necessary configuration of the e mail client has been performed in the Settings dialog Section 4 14 3 E mail notification When the option is activated an e mail with a description of the trigger event and a corresponding screen shot is sent to the e mail recipi ent Successful sending of the e mail is indicated in a message box When a trigger occurs a trigger pulse is made available at the BNC socket The TRIGGER LED then lights green 4 9 3 Evaluation The measured values acquired up to this point can be evaluated even while the measurement is still run ning A time slice can be marked with the left mouse button A tool tip is also displayed with additional infor mation about this time slice The time is displayed above the recorded channels and an overall channel be 26 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software low the channels This permits localization also of trigger events which lie outside the current screen area To the left of the channels the critical threshold set for the evaluation at the start time is displayed Whilst the measurement is in progress the current data of the individual channels is displayed on the right hand side When a trigger occurs the current value of the individual physical errors at the time of triggering can be seen The channel in
12. be assumed inform the delivery agent within 72 hours and keep the packaging for inspection The device must only be transported in its original or equivalent packaging Check the completeness of the consignment against Chapter 8 Scope of Supply 2 2 Acclimatizing the device Before turning on the device make sure that the device is at the same temperature as the room tempera ture This will take max 60 minutes 2 3 Connecting the device 2 3 1 Design Figure 1 shows all connections of the CBT2 The power supply is provided by the supplied AC DC adapter 24 V via an extra low voltage socket The internal contact is the plus pole The ON LED lights green when the operating voltage is present AN TRIGGER LED d E DEE GEMAC Se s r Sensorik Messtechnik ASIC Design SE connection to CAN PC or notebook SUB D 9 USB Le BNC socket C AN Bus trigger signal for storage e st E r output oscilloscope EO Power supply ADAPTER POWER SUPPLY connection to power pack ON vm CAN CANooen ii SAEJ1939 ON LED aoe displays the Figure 1 Connections of the CBT2 Connector for adapter board The upper D Sub 9 connector serves for connection to the plant CAN bus The adapter board can be plugged at the lower D Sub 9 connector and the CAN Land CAN H signal lines can be sampled for evalua tion on a digital storage oscilloscope DSO A station related trigger signal is available at the BNC socket It can be
13. bus stations by way of an er ror frame This is achieved with a deliberate coding violation All CAN controllers then discard this telegram destroyed by the error frame and the sending CAN controller repeats this message again The counter for error frames like the bus traffic load is a real time monitoring function The background to this measurement is a protocol check of all frames transferred on the bus If an active or passive er ror frame is detected the corresponding counter is incremented As a rule the count of this display should always show 0 If sporadic or even frequent errors occur this is generally attributable to problems with the physical bus characteristics and the corresponding transmission problems The error frame counters of the CBT2 count up to a maximum of 1 000 000 The counters will only work correctly however if the correct baud rate has been set for the CAN bus segments via the CBT2 application software If this is not the case the frame detection will not function correctly Subsequently data traffic of any kind on the bus may lead to incrementing of the error frame counter 8 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 The CBT2 Application Software 4 1 System requirements To ensure the correct installation of the CBT2 application software your PC or notebook should meet the following minimum requirements and po
14. cannot be measured or if a timeout occurs this infor mation is also logged and displayed The set values serve as the thresholds for the online trigger measurement irrespective of whether automat ic evaluation is activated or deactivated 4 6 7 List of stations The List of stations contains all CAN bus stations determined using the Station scan function Each station can be assigned a customized designation and various settings can be made Subject to the selected bus system CAN type the following columns are provided for the stations along side the designation m CAN ID type standard extended CAN ID 0x000 0x7FF 0x00000000 0x1FFFFFFF m CANopen Node ID 1 127 E DeviceNet MAC ID 0 63 z SAE J1939 Source address 0 253 The checkbox to the left of each station designation displays whether or not the appropriate station is includ ed in the measurements lz to be measured or not to be measured To switch either click with the mouse on the relevant icon or use the context sensitive menu right mouse button or the keyboard spacebar To rename a station either click on the Rename button double click on the cell use the context sensitive menu or the keyboard F2 key The other parameters in the list can be changed in the same way To detect any faulty adaptation on the bus more easily it is recommended to arrange the stations according to their physical order sequence
15. during and after the measurement of a station The logical representation shows the analog signal of the measured frame to gether with an overlaid decoding of the CAN protocol Use the Zoom function and buttons to en large or reduce the time section To navigate within a zoomed out section use the scrollbar The left mouse button can be used to change the trigger time of the frame start bit If CANopen is the selected bus system CAN type the Node ID is displayed when the mouse pointer is placed over the ID for DeviceNet the MAC ID and for SAE J1939 the Source address is displayed The physical representation simplifies evaluation of any signal dips and reflections From the height of the dip it is possible to infer the changes in the characteristic wave resistance of the cable The length and the position of the reflections indicate the distance to the point of interference In this display it is possible to draw up a range with the right mouse button permitting simple calculation of the reflection heights and lengths and thus of distances The signal runtime is converted into a distance specification automatically Document 22510 HB 1 10 E CAN Bus Tester 2 23 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software For the calculations a mean bus cable runtime constant of 4 5 ns m is assumed for CAN CANopen SAE J1939 or 4 3 ns m for DeviceNet 24 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC
16. e Copy CSY file into clipboard Export CSV file Abbrechen Figure 15 Export measurement CSV file When opening or importing the CSV file into a spreadsheet program observe the follow ing formatting settings to ensure that all columns lines and data formats are imported correctly E Column delimiter the list separator set in the system usually a semicolon M Line separation Carriage Return Line Feed CRLF 0x0D0A M Decimal delimiter the decimal delimiter set in the system usually a dot 4 12 2 Graphics Use the File Export menu to export export measurement as various graphical representations of mea E csv rie feiert sem surement data as bitmap graphics bmp jpg Measurement X Error Frame detected 05 05 2003 08 53 28 VI and png The image data can be exchanged Export options swiftly with other programs via the export to rea Online Trigger logical signal the clipboard The measurement and the he preferred picture area can be selected in the settings dialog If All stations of Measure ment One station is selected the graphics of all stations will be saved in a chosen directory automatically A preview allows easy selection of the measuring data to be exported Figure 16 refers Copy graphic into clipboard Export graphic Abbrechen Figure 16 Export measurement Graphics 30 Document 2
17. in front of the corresponding baud rate in the dialog 5 The number of BTL cycles applies only to the CAN controller The bit sampling for the physical measurements is always 64 times Document 22510 HB 1 10 E CAN Bus Tester 2 33 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 15 Protocol Monitor The Protocol Monitor can be used to visualize CAN or CANopen messages online and to transmit CAN messages defined by the user The Protocol Monitor operates independently of the CBT2 measuring functions Two separate program windows are provided to transmit and receive CAN messages The following functions are available in both windows Status LED on the CAN controller CH CH Q F Green The CAN controller is activated transmit and receive are possible Yellow The CAN controller has reached or exceeded its warning limit Red The CAN controller has been turned off automatically is in Bus OFF status Gray The CAN controller is deactivated Starting stopping the CAN controller Stop continue receiving Gi Start Activates the CAN controller with the baud rate set in the CBT2 application software CAN Controller key F5 GO Stop Automatic deactivation when scanning the baud rate and switching the baud rate in CAN Controller the CBT2 application software Stop Continue Reception of frames in the dialog window Protocol Monitor Receive can be paused Receiving and continue
18. on the bus The order can be changed manually using the and buttons and or by drag amp drop Click on the column header for automatic sorting in ascending or descending or der of designation ID type CAN ID Node ID MAC ID or Source address 4 6 8 List of Measurements The List of Measurements be used to manage different measurements Each measurement possesses a symbol for the measurement type a measuring point designation a time stamp and at the bottom edge of the list an individual description 18 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software To rename a measuring point either click on the Rename button double click on the cell or use the con text sensitive menu or the keyboard F2 key As with the List of stations this list can also be sorted automatically in ascending or descending order by clicking on the corresponding column header The default measurement is always placed at the top irre spective of the sorting The measurement data for the default measurement are not saved in the document Document 22510 HB 1 10 E CAN Bus Tester 2 19 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 7 Measurement All Stations view 4 7 1 How to use The Measurement All Stations view provides an overview of the signal conditions of all stations The mea sured quality value is displayed clearly in a ba
19. options bit need not be used for filtering In the Value field you specify the bit value which the relevant bits in the Mask field must assume to be accepted by the filter For the direct selection the relevant identifiers can be highlighted in the lists and moved between the groups of filtered or accepted IDs Direct selection will deactivate the filtering of identifier groups 6 The filter is available for 11 bit identifier only Document 22510 HB 1 10 E CAN Bus Tester 2 39 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 15 2 3 Trigger The command Trigger can be found in the Settings dialog and allows the user to configure a trigger on CAN IDs standard or extended or on any data field Parts of the data field can be masked Parts with X are irrelevant for the trigger function In Figure 19 all messages containing a CAN Monitor Receive Settings el Settings ger O2hex as the second data byte are be ee Mr ing triggered Additionally the user can GE Iv Enable Trigger Eg Trigger Configuration configure the number of frame mes sages after the trigger point and the be egen havior after their reception Format ID type 8 hexadecimal decimal M stop receiving stops the record ing of the message frames in the Behavior on Trigger receive window Ta EU E stop CAN controller deactivates the CAN controller All sending action in Protocol M
20. software offers a function to manage different measure ments When a default measurement is accepted as a new measurement the measuring point should be filled out in accordance with the point at which the CBT2 is connected to the plant In the evaluation of the Measurement All Stations view the measurements from different measuring points can then be overlaid for troubleshooting assessment 4 10 2 Measuring at different times Not only the measuring point but especially the measuring time is interesting in the case of recurring plant measurements at specified maintenance intervals When a default measurement is accepted as a new measurement the time is automatically saved In the evaluation of the Measurement All Stations view the measurements at different measuring times can then be overlaid for assessment to detect deterioration over a longer period of time 28 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 11 Printing a test record After all measurements have been completed a comprehensive test record can be printed via the CBT2 ap plication software to document the correct functioning of a CAN bus plant or to show detected problems The test record consists of individual data areas Before printing or displaying the print preview the contents of the data areas can be adapted individually for a selected measurement and station To this end the d
21. 0 001 S54 43 15 10 01 59 01 00 00 EO CAN controller stopped Fen DIO a GEOL al 12 36115 0001 1 jean CAN sm CANopen Figure 21 Protocol Monitor Receive CAN Scroll mode The Overwrite mode Presentation of the received CAN messages sorted by their CAN ID Figure 22 SEE IZA giz GIO Protocol Monitor Receive CAN File Functions View Tools Deal een 2 elen Time stamp relative Count CAPR ID hes Data hres Data ASCII OOo 00 00 502 4 FORA YF O OOo 00 00 501 3 oA Remote frame length 11 00 00 00 7968 zZ 60H 40 15 10 01 00 00 00 OG 00 00 00 795 zZ EGOA 43 15 10 01 59 01 00 00 00 00 151 12 300 02 AN Cooper Figure 22 Protocol Monitor Receive CAN Overwrite mode Document 22510 HB 1 10 E CAN Bus Tester 2 41 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 15 2 5 Module CANopen _ License note Receiving of CANopen messages is only available if the corresponding software module is supported by the connected CAN Bus Tester 2 see Section 6 License Management The software modules supported by the device are listed in the information dialog menu Help About CAN Bus Tester 2 There are two modes of display Mm Mode Scroll Presentation of the CANopen messages in the order in which they are received EB Mode Overwrite Presentation of the received CANopen messages sorted by object type EK CANopen Screenshot cmr Proto
22. 0 standard 0 00 standard 0 00 standard 0 00 standard 6 OA standard 6 OA standard 6 OA Cycle time ms Count repeated 100 DO one time one time FF BE one time one time ESCH gt Reset Application one time t Restore All Default Parameters one time mF Save All Parameters vt Read ADC values one time repeated Write Event Timer 0 ms Q Preop Node Node ID 10 nsmit E Start 1s Stop Device Q Start Node Node ID 10 Q Write Event Timer 100 ms Write Event Timer 0 ms Q Preop Node Node ID 10 a Ei B P L E E EF t Write Event Timer 100 ms smi Write Event Timer O ms E Remote request TPDO Node Guard Request Read Vendor ID E Read Product Code t Read Revision Number E Read Serial Number smit Read Error Reg standard standard standard standard standard standard standard standard standard J be d b D DG DO GO DO OO OO a a OO OO 0 GO 0 0 GO GZ b GO GO GO GO OD DD DD EA 01 00 00 02 00 00 03 00 00 04 00 00 00 00 00 one time one time repeated repeated one time one time one time one time one time I I LO t t O oO I I I I I I Figure 18 Protocol Monitor Transmit 4 15 1 1 Functions The following functions are provided by the menu and by the toolbar of the Protocol Monitor Transmit menu New J E Open p D Opens a new Protocol Monitor Transmit document key combina
23. 2510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 13 Importing measuring data The command mport CANobserver in the File menu imports measuring data recorded with CANob server to the CBT2 application software The CANobserver is a diagnostic tool for the physical and logic long term surveillance of CAN bus plants and is designed as a stationary extension of the CAN Bus Tester 2 It s functionality is equivalent to the track display implemented in the measurement On line Trigger Contrary to the CAN Bus Tester 2 the CANobserver is permanently integrated in the CAN network and continuously monitors the data transfer which is recorded automatically for up to 4 years with out being connected to a pc The CANobserver allows the parametrization of the monitoring and the evalu ation of the recorded data to be effected by using a web browser via the integrated web interface or by a SNMP inquiry via a control center All recorded data can be exported to a XML file The application will switch to the Measurement Online Trigger view when importing data This view provides the same comfortable evaluation functions that are available during measurements using the CAN Bus Tester 2 C ANobserver Ge control system ethernet network alarm message Figure 17 Application CANobserver 4 CANobserver is a registered trademark of GEMAC Gese
24. 4 9 Measurement Online Trigger view 25 A91 HOW OVN 25 49 2 Seting and alegera daa EE 26 A oE V UAG AAE 26 4 10 Working with measurements kk ENEE 28 4 10 1 Measuring at different DOIE A 28 4 10 2 Measuring at different mes 28 A eb Gi daidala a CSCO EE 29 4 12 Exporting measuring OAs E 30 PES EEE EE EN 30 EE eg EA 4 13 Importing measuring CC EE 31 aE E Soe A E E E E O A S N ENE E TN AE A O E 32 Ga D e B geure EE 32 4 14 2 Tester contact aia ea en ee eee eier 33 4 143 E mail aie eral ion E 33 aba D SR CT lun Un Te DE 33 115 FONN 34 4 15 1 Protocol Monitor Transmm essa 35 4219 1 1 FIS eee 35 4 15 1 2 View Messages 36 4151 3 ATTEN 36 4 15 2 Protocol Monitor E 38 4 19 2 1 FG eege 38 DD ll 39 ede Ea deial 40 415 274 Module CAN ae see ee ee ee 41 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design Table of Contents 419 2 9 Modus NO Ne 42 5 The CAN Bus Tester 2 Scan Program 0222002200020000n0nnnnnn nenne nenne nenne nnnnennnn ERE ERE SEERE RER nennen nenn 44 6 License Ailetz eizuz 45 Eil eer ee PAE 46 8 2C0PE DFS ee EE 48 8 1 Scope of Supply Basic Gei 48 8 2 Content adapter SOUS AAA 48 9 Maintenance and Customer GOIZ rss 49 1 leet 49 9 2 Customer service EEN 49 SEES 11 6 6 1 6 E 49 GE 0 05 ee ee ee ee EE 49 9 2 3 Warranty and limitation of HORR rss 49 10 Ordering Information nu ihn 50 10 1 SPA Dale eege 50 11 Problem RECOV EE E
25. Continue search Searches for the next term specified by Search key F3 aay Search backwards Searches for the previous term specified by Search key Shift F3 38 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC 4 The CBT2 Application Software Sensorik Messtechnik ASIC Design 4 15 2 2 Filter The Filter command in the Settings dialog enables the configuration of a filtere for CAN messages There are two lists for filtered and accepted identifiers You can choose a complete identifier group by way of the masks or else perform a direct selection of the identifiers to be filtered CAN Monitor Receive Settings x A maximum of two OR d masks is provid Settings Y Filter ed to select an identifier group Each bit General i ug ST Filter BF Enable Filter in the identifier masks can be assigned Ga Trigger Configuration one of the following values X Bit is not Mask Value Hoccoooookk o arc o Dm relevant Mask Value ull af ou of om De filtered IDs accepted mM O Bit is relevant and must be 0 m 1 Bit is relevant and must be 1 The selection can be performed either using the appropriate buttons or by enter ing the appropriate hexadecimal values for Mask and Value The bit value 1 in the Mask field means that this bit is rele OK K Abbrechen Ubemehmen vant while bit value O means that this Figure 19 Protocol Monitor Receive Filter
26. E EE a EEN 52 11 1 Problems with the CBT2 device sein 52 11 2 Problems when MEASLTISING c cccccesceceseccececseccssecccseeseueeseucessecessesecseeseueeseaeessesesaeeessesssaseseneaenes 52 E le 54 Document 22510 HB 1 10 E CAN Bus Tester 2 VII GEMAC Sensorik Messtechnik ASIC Design List of Tables List of Tables Table 1 Technical epechtcatons nenn nenn nenn nun onen enenenenenenenenennnennnnn nn snnnnnnn 43 Table 2 Technical Specifications contd nnnnnn nenne nennen nenn ennennn nennen nne nennen 44 ENTEN 45 Table ag las deiela bi ala 47 Table 5 Ordering information Spare parts 48 VIII Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design List of Figures List of Figures Figure 1 Connections of the GER TZ 3 Figure 2 Definition of disturbance free voltage range peak to peak voltage and signal level 6 Figure 3 Structure of the CBT2 application software 10 Fr IES AF TOO og E 11 Figure S Message EE 12 FUSS AS Le 14 Figure 7 BUS SVEN SUE CUO AAE 15 Figure 8 Configure segment view 16 Figure 9 Winnog Vest o E 17 Figure 10 Wiring fest Successful sristi EEE A aaa 17 Figure 11 Measurement All Stations view 20 Figure 12 Measurement One Station view 22 Figure 13 Measurement Online Trigger view 25 Figure 14 FEST ziela de Pez udala EE 29 Figure 15 Export measurement CSV Tessa 30 Figure 16 Exp
27. MAC Sensorik Messtechnik ASIC Design 7 Technical Specifications 7 Technical Specifications General parameters and overview of functions Use CAN type Bit sampling Bit timing Supported baud rates List of stations List of Measurements Quality level Disturbance free voltage range and edges Oscilloscope display Online trigger Automatic evaluation Bus status Bus traffic load Error frames Protocol monitor Test record Export function Firmware and FPGA configuration CAN 1S011898 2 CANopen DeviceNet EN 50325 2 SAE J1939 64 fold 10 240 sampling points Adjustable BTL cycles tq sample point and resynchronization jump width SJW Depending on CAN type 10 20 50 100 125 250 500 800 1000 kbit s Additionally user defined 5 33 3 62 5 75 83 3 200 kbit s Automatic detection via baud rate scan Automatic detection via Station scan Designation CAN ID ID type Node ID MAC ID Source address can also be entered manually Possibility to measure at different measuring points and at different times Sorting by measurement type measuring point and measurement time Value representing the signal quality 0 100 Minimum value and maximum values saved Time stamp Disturbance free voltage range typ 0 75 3 V resolution 50 mV Edge steepness falling and rising specified in 1 64th of the bit width Minimum value and maximum values saved Trigger on message frames with spe
28. cified ID trigger position can be set Frame analysis and full frame recording Decoding according to protocol CAN CANopen DeviceNet SAE J1939 Zoom six stages Real time monitoring of the bus for logical and physical errors Resolution can be set 10 ms 1 min Oscilloscope display and e mail notification on triggers Limit value settings and measured value evaluation according to critical quality level critical disturbance free voltage range critical edge rising and falling Bus traffic detection display dominant recessive not defined bus traffic Permanent display of the bus traffic load 0 100 Minimum and maximum values saved Constant display of detected frame errors Distinction between active and passive error frames 0 gt 50 000 CAN Reception of CAN message frames incl filtering Transmission of CAN message frames and sequences message lists CANopen Interpretation of all CAN messages according to the CANopen spec as SDOs PDOs NMT Heartbeat Emergency Sync and Timestamp CiA301 CiA302 CiA305 CiA401 CiA402 CiA404 CiA406 CiA408 CiA410 upgradeable Comprehensive configurable measuring and test record on DIN A4 e Letterhead with tester and customer contact data e Tabular representation of the measured values e Graphic representation of the measured values Measuring data as a configurable CSV file Graphical measured data representation as a configurable bitmap bmp jpg p
29. col Monitor Receive CANopen X File Functions View Node IDs EU re E 828 84 A Object Types 7 CAN telegrams caN Controller gestartet 25 04 2012 15 14 20 819 V Undefined v EKO 10 Boot up SYNC M TIME Emerg Error code 5010h V Emergency V PDO CANopen device hardware Longitudinal value out of range M SDO Error register 21h V Guarding Heartbeat Man spec error code 00 01 00 00 00 LSS Protocol e Node IDs E xX ebi GA e El E 5555 03 gt RIV 21A121 1h Ze beti Node ID Device Name Device Profile EDS D A 7 oe pre operational 009 010 152D 90 P21 EDS File PR 23 bel 011 v 012 Longi6 15 bel 013 Laterali6 unknown v 014 015 016 vw hie Slope Longi6 15 Log Slope Laterali6 unknown MI nen j KI Not initiated SDO Transfer can CAN ID Canopen Ready Figure 23 Protocol Monitor Receive CANopen Filter configuration The filtering of the CANopen messages can be done for object types and node number Node ID by check ing the appropriate checkboxes 42 Document 22510 HB 1 10 E CAN Bus Tester 2 4 The CBT2 Application Software Node configuration GEMAC Sensorik Messtechnik ASIC Design The basis for the interpretation of CAN messages is the device description of the individual CANopen nodes This description can be done for each device node Node ID by loading the corresponding EDS DCF file If no fil
30. connected to a DSO via the supplied BNC cable The connection to the PC or notebook is provided using a USB cable During operation the BUS STATUS LED indicates whether there is data traffic on the CAN bus The colors correspond to those of the bus status LED in the application software see Section 4 4 3 1 Bus status Document 22510 HB 1 10 E CAN Bus Tester 2 3 GEMAC Sensorik Messtechnik ASIC Design 2 Sta rt up The triggering of a trigger pulse at the BNC socket is signaled by the TRIGGER LED lighting green A red TRIGGER LED indicates that an error has been detected during the Online Trigger measurement see Section 4 9 Measurement Online Trigger view 2 3 2 Power supply The desk power supply pack included in the scope of supply possesses a wide range input for connection to mains voltages from 100 V to 240 V 50 60 Hz it provides a d c voltage of 24 V The CBT2 is ready for oper ation when the extra low voltage connector is plugged into the CBT2 the mains power cable into the power supply pack and the mains power plug into the mains power socket outlet The ON LED on the device lights green The wings of the extra low voltage connector must stand horizontally to be plugged into the CBT2 A 90 turn in the clockwise direction locks the plug in position The CBT2 can also be operated on a supply voltage which may be available optionally on the CAN cable provided this voltage lies in the range from 9
31. cted station Figure 12 shows a screen shot of this view This measurement simplifies the station related display and evaluation of the data sent along the CAN bus through the use of an oscilloscope since triggering is only coupled to exactly one station address Section 2 3 4 Connecting to the digital storage oscilloscope describes in detail how the CBT2 can be used in conjunction with an oscilloscope 4 8 2 Setting and measuring The requirements for this measurement are The CBT2 is connected both to a PC and to the CAN bus plant bus status LED green or yellow The correct baud rate is selected At least one station exists in the List of stations and is marked as fo be measured The station to be measured must be selected Measurement Selection Saving Selection of an Saving of new existing measurement measurement data Station el Measure ion 5 10 2007 11 21 59 v _ _ _ _ _ _ XP CAN station 5 standard 300 w Selection of the Measured values i Minimum value Meas value Maximum value bk mmm station to be measured Quality level 79 79 79 Minimum maximum Dist f It enen AE A sm ANC Current values ist free volt range ZS as Zus with time stamp vc Display of the measured disturbance free vol tage range and its H eg Edges fluctuation 3 21 2 a 1364 2 Display of edge steepness rising and falling Oscilloscope display Signal waveform including decoding acc to protoc
32. ctions and Measuring Principle 3 2 1 1 Enhanced measurement of the Disturbance free voltage range By using the existing process to measure the disturbance free voltage range sometimes drops in recessive bits could not be identified securely Thus the CANtouch firmware version v1 80 and the CAN Bus Tester 2 PC software v4 4 0 0 and newer versions of them offer an enhanced measurement process by default The manufacturer highly recommends to use this enhanced process for new measurements As the disturbance free voltage range also influences the calculation of the quality level this value changes as well The old process is further available in Legacy Mode for compatibility intentions with existing measurements That old process can be activated via Menu Tools Settings Default Legacy mode 3 2 2 Edge steepness To evaluate the transmission properties of the bus cabling and of the individual CAN bus stations complete ly in addition to the disturbance free voltage range the edges must also be studied shallow edges can also prevent the correct decoding of the transmission signal The CBT2 determines the edge steepness for rising and falling edges separately To this end two thresh olds are set at 10 and 90 of the signal level determined determined differential voltage at 42 64 2 3 66 see Figure 2 The time required by the difference signal to change between these voltage threshold values is measured both for fal
33. d respectively The CAN controller remains active 34 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 15 1 Protocol Monitor Transmit License note Transmitting of messages and sequences are only available if the corresponding software module is sup ported by the connected CAN Bus Tester 2 see Section 6 License Management The software modules supported by the device are listed in the information dialog menu Help About CAN Bus Tester 2 The Protocol Monitor Transmit menu option can be called via the Protocol Monitor Protocol Moni tor Transmit menu of the CBT2 application software He serves to transmit CAN messages either once or cyclically For this purpose you can define your own CAN messages in a list il 152Dww CANopen Protokoll cmt Protocol Monitor Transmit File Functions View Sequences Messages 2540008 a Sequences x HE E SES w it ds Tz Of A E Sa teneri Read Identity Object BEE Sync i Q Read Vendor ID Ira gt Start Node Node ID 10 Q Read Product Code t Preop Node Node ID 10 Q Read Revision Number SS Stop Node adei 10 9 Read Serial Number t Reset Communication ansmit ZF Start 3s Stop Device Q Start Node Node ID 10 Q Write Event Timer 100 ms Me B K I BRA Designation ID type CAN ID hex RTR DLC Data hex Cycle standard 050 D D standard 0 OG standard 0 0
34. d to define a CAN message Cycle single The CAN message is transmitted once multiple The CAN message is transmitted cyclically with the set cycle time 10 ms 60 000 ms Up to max 10 CAN messages can be defined as multiple Cycle time Interval in ms with which a CAN message is transmitted repeatedly If this option is se lected the cycle must be defined as multiple ID type standard CAN ID acc to standard protocol 11 bit 0x000 0x7FF extended CAN ID acc to extended protocol 29 bit 0x00000000 0x1FFFFFFF CAN ID Identifier of the CAN message to be transmitted Name Name of the CAN message This name can be used by all other CAN messages with the same CAN ID Description Additional description of a CAN message RTR Definition of the frame type 0 Data frame 1 Remote frame Data Used to enter the data to be transmitted The number of bytes entered is used for the data length code DLC irrespective of the selected frame type RTR Selecting the Transmit button transmits the appropriate CAN message either once or repeatedly Selecting the button once more deactivates the multiple transmission of a CAN message 4 15 1 3 View Sequences 36 Document 22510 HB 1 10 E CAN Bus Tester 2 4 The CBT2 Application Software GEMAC Sensorik Messtechnik ASIC Design In the View Sequences the created CAN messages are grouped into sequences This makes it possible to send multiple CAN m
35. dated constantly at intervals of one second The data of the bus traffic load display can also be recorded in a CBT2 document Clicking with the left mouse button on the bus traffic load icon or activating the Record bus traffic load option in the Config ure Segment view will start recording of the measurement data The REC icon indicates whether the recording is currently running REC or not GREC It should be taken into account that as for the error frame counters changing the baud rate and execution of the automatic baud rate detection results in a reset of the bus traffic load For correct displaying of the bus traffic load the baud rate must be set correctly 4 4 3 4 CAN supply voltage The supply voltage which is present optionally in the case of CAN CANopen SAE J1939 or always in the case of DeviceNet is measured and displayed cyclically Document 22510 HB 1 10 E CAN Bus Tester 2 13 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 4 4 Status bar The status bar can be found at the bottom of the CBT2 application software window Figure 6 Ready 00 01014 NU Figure 6 Status bar When you navigate through the menus with the mouse pointer or the direction keys the left area of the sta tus bar describes the functions of the entries in the menu This area also displays appropriate descriptions regarding the effects of the buttons on the toolbar if you move the mouse pointer over
36. e extensions today In addition the device is fitted with an integrated anti theft system Kensington Lock which enables longterm measurements without supervision Wiring test During the installation phase of CAN bus plants the wiring test of the CBT2 is especially useful With this test it is possible to determine line short circuits line breaks the bus termination the loop resistances of the CAN line and the CAN power supply line and the overall line length Measuring the physical bus characteristics Analysis of the physical bus characteristics is another principal application of the CBT2 The causes for er rors are often assumed to lie in the application software of the plant Experience however has shown that most of the problems which occur are due to the use of inappropriate cable types improper installation of the bus cables or disturbed driver functions at individual CAN bus stations Typical error causes for a dis turbed communication on the CAN bus are missing or too many bus terminations too long bus lines and or spurs wrong cable types predamaged defective bus drivers excessive contact resistances at the connectors terminals due to aging corrosion transient breaks on moving cables cable routing in environments subject to strong interference Frames with a bad signal quality can only by detected via an analysis of the physical bus characteristics permitting errors and their causes to be detected specifically Earl
37. e is available the device description can be made by selecting the device profile In addition a manual configuration of each node number is also possible Figure 24 NdeI Rn EICHE 008 009 Configuration Node ID 10 Configure objects Mapping parameter Name COB ID Data For ModeGuard 704 hex SSbo Reg 604 SSDO Rsp GOO TPDOl 154 Emergency 084 Sync 80 Object dictionary Default values Figure 24 Node configuration Node IDs Document 22510 HB 1 10 E CAN Bus Tester 2 Node ID Device Name Device ee EDS DCF File 4 O10 152090 P21 EDS File PR 23154 xx eds T 011 Ci 410 012 013 X Delete Node ID 014 Ce Invert Selection wi O15 O16 Edit Device Name 17 cin Change Device Profile de Load EDS DCF File 019 020 g Configuration 021 022 al mig v Color Cancel LI 301 LI 302 LO 401 Cio 402 LI 404 Ci 406 Cid 408 1017 Producer Heartbeat Time 1018 Identity Object 1200 Server 500 Parameter 1 1500 Transmit POO Communication Parameter 1 DO Number of Entries 01 COB ID DZ Transmission Type 03 Inhibit Time Og Compatibility Entry 05 Event Timer 1400 Transmit POO Mapping Parameter 1 1F50 Download Program Data 1F51 Program Control 2002 Automatic Bus Off Recovery d 3000 Digital Filter Settings d 3001 TPDO1 Transmit Event Settings d 5555 Manufacturer Reserved I
38. ect this function to display the CAN type selection dialog each time the program is started If this option is deactivated the CAN type CAN is se lected as the default The CAN type selection dialog can still be called at any other time with File New Select this function to display a complete decoding of the CAN message in the oscilloscope display If the option is deactivated only ID DLC Data and CRC are displayed Select this function to add a graphic representation of the measured dis turbance free voltage range to the oscilloscope display Select this function to add a graphic representation of the measured peak to peak voltage to the oscilloscope display Select this function to show deactivated tracks in the Measurement On line Trigger view This can decline the clarity of the display in cases where there are many errors on the bus Select this function to show telegram traffic in the track display of the Measurement Online Trigger view When activated the trigger impulse will be released even during a continu ous measurement when an error occurs Otherwise only when the trigger occurs and the single measurement is stopping Activate this function for backward compatibility with existing measure ments Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 14 2 Tester contact data Use the CBT2 print function and the
39. ent of the Disturbance free voltage range Copyright 2015 GEMAC Gesellschaft fur Mikroelektronikanwendung Chemnitz mbH Subject to change without prior notice Our policy is one of continuous improvement and consequently the equipment may vary slightly from the description and specifications in this publication The specifications illustrations and descriptions provided in this documentation are not binding in detail No part of this publication may be reproduced in any form or by any means without the prior written permis sion of GEMAC mbH All rights according to copyright law expressly reserved to GEMAC mbH Note To use the CAN Bus Tester 2 and for proper understanding of this manual general Knowledge of the field bus systems CAN CANopen DeviceNet and or SAE J1939 are required IV Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design Table of Contents Table of Content d alu OGM ee 1 AU 3 2 1 Receiving inspection and SSI NENNEN RENE 3 2 2 Acelimalizing NE SUA 3 2 9 COMMECUNG ME JONES EE 3 gegia a 050 OE EE EE EE REE EEE EEE 3 gt POT SUB DINE E 4 2 3 3 GAN Dus OE 4 2 3 4 Connecting to the digital storage osclloscope skt kk nennen nenn nennen nnn nennen nennen 4 2 3 5 Connecting the device to the Birusa 4 2 4 Prevention of ee e EC 4 3 FUNGCHIONS and Measuring PINGIPIG E 5 3 1 The most important measuring TUDGIOTS rss 5 3 2 Measuring the physical bus characerstce rss
40. er measurements M Detailed test report Protocol Monitor CAN The integrated Protocol Monitor CAN offers transmit and receive functions The receive function is used to monitor and record either all or specially selected message frames The transmit function enables a self generated message frame to be sent In this way it is possible to parametrize CAN devices for example Protocol Monitor CANopen The CANopen protocol monitor serves as a monitoring tool for the analysis of CANopen based systems It interprets all received messages according to the CANopen specification The messages are recognized as SDO PDO NMT Sync Time stamp heartbeat and emergency objects and interpreted accordingly The ba sis for the interpretation of CAN messages is the device description of the individual CANopen nodes This description can be done by selecting the device profile manually or by loading the corresponding EDS DCF file A convenient filter based on node numbers Node IDs or object types supports a targeted analysis of rele vant data for the user Note The CANopen protocol monitor serves as a monitoring tool only and does not provide any data transmission function 2 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 2 Start up 2 Start up 2 1 Receiving inspection and testing Carefully unpack the device immediately after receipt and check the consignment If transport damage is to
41. ers CAN CAN DEE 4 License note gt If no device is connected all bus systems will be displayed Device and can be selected If the CAN Bus Tester 2 is connected ana J 1939 EN be the bus systems supported by the device will be marked see Section 6 License Management Only those can be mea Show selection dialog at startup sured by the connected device A creation or evaluation of EEE documents with bus systems not supported by the connected tester is still possible Figure 7 Bus system selection Document 22510 HB 1 10 E CAN Bus Tester 2 15 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 6 Configure segment view The Configure segment view is displayed directly after starting the CBT2 application software Here you can enter the basic settings for measuring Figure 8 shows a screen shot 4 6 1 Segment lf your CAN bus plant comprises several segments bus segments separated by a repeater you can op tionally enter a name for the segment max 30 characters in the field Designation for differentiation The data transfer rate you wish to use for the CAN bus segment to be measured can be set under Baud rate You can also use the Baud rate scan function to let the CBT2 determine the baud rate automatically If no message frame from the relevant station is detected within the time set under Timeout this time must be increased List of stations Bus stat
42. es active and passive error frames The individual measuring functions are described in detail in the following subsections 3 2 Measuring the physical bus characteristics The CAN bus uses a difference signal Le the actual data signal is transferred via two lines inverted to each other CAN H and CAN L The difference between these two lines generates the signal digitized by each CAN bus transceiver Any faults occurring there can endanger the correct detection of the bit stream The CBT2 provides an evaluation of the difference signal in the form of a general quality value the distur bance free voltage range and the edge steepness as well as using the oscilloscope display All these mea surements are determined within a message frame Contrary to the quality level providing a general evaluation of the signal quality for the bus the determination of the disturbance free voltage range and of the edges as well as the oscilloscope display are useful aids for targeted troubleshooting 294 Nietiurirhannpa fraa re lbe gg ranan S si O I I I I D I I I I gt I I E 5 Peakt to peak Disturbance free Signal level E voltage voltage range A Time bn Sg ep 44 64 bit width Evaluation period 68 Figure 2 Definition of disturbance free voltage range peak to peak voltage and signal level GEMAC Sensorik Messtechnik ASIC Design 3 Fun
43. es certain interactions from the user such as activation deactivation of the terminators and connecting of a shorting plug A wizard guides the user through the process 4 6 3 Baud rate scan The CBT2 can determine the baud rate for a segment automatically provided that the CAN bus plant is func tioning correctly data traffic present bus status LED green Click on Baud rate scan a dialog box is opened displaying the baud rate detected This can be confirmed and accepted by clicking on the OK but ton Note If the baud rate is changed the error frame counter and the bus status display are reset The protocol moni tor is deactivated 4 6 4 Station scan The Station scan determines automatically depending on the bus system selected CAN type all transmit ting stations or IDs transmitted on the bus and enters them in the List of stations 4 6 5 Recording the online monitoring The measured values Error frames and Bus traffic load displayed in the message bar can be recorded if necessary and also saved in the CBT2 document To start recording click with the left mouse button either on the option or on the appropriate icon in the message bar The current measurement values are dis played in the text fields While the recording is running the REC icon is displayed in the message bar When using the recording functions please note that the stored values will be lost after stopping and restarting the recording process and
44. essages with a defined time interval once or repeatedly TO br My W l x Create Sequence Duplicate Sequence Delete Sequence Rename Sequence Change Cycle one time repeated Sequence Move Up Sequence Move Down Insert Message Remove Message Change Waiting Time After Message Message Move Up Message Move Down Creates a new sequence at the current position key Ins Duplicates a selected sequence key Ctrl Ins Deletes the selected sequence key Del Renames the selected sequence key F2 Activates one time or repeated transmission of the selected sequence key F3 Moves a selected sequence in the list one place up key Shift Ar row Up Moves a selected sequence in the list one place down key Shift Ar row Down Inserts a CAN message into the selected sequence Removes a selected CAN message from the sequence key Del Changes the waiting time after the selected message key F4 Moves a selected CAN message in the sequence one place up key Shift Arrow Up Moves a selected CAN message in the sequence one place down key Shift Arrow Down Document 22510 HB 1 10 E CAN Bus Tester 2 37 GEMAC 4 The CBT2 Application Software Sensorik Messtechnik ASIC Design 4 15 2 Protocol Monitor Receive The Protocol Monitor Receive option can be called via the Protocol Monitor Protocol Monitor Receive menu of the CBT2 application s
45. ftware modules can be activated via licenses at any time On purchase of licenses for additional bus systems or software modules a license file cbt2lic is provided This license file can be downloaded to the connected CAN Bus Tester 2 via the button Load License in the information dialog Figure 26 The license is only valid for a tester with a specific serial number and can only be loaded on this tester Program Manufacturer and Device Information Information about the Program Information about the Connected Device EETA CAN Bus Tester 2 Application Software E ES Copyright CH 2012 Mame _AN Bus Tester 2 Serial number 22517 10 00815 Software Development GEMAC mbH version Hardware ma po version 4 1 0 D Firmware version MODO 20 Mai 2011 FPG version ULA USE driver version 2 50 0 AFI Version 2 31 License management ER CAR Types Information about Manufacturer baT ran GEMAC mbH 3 G e i de fi CANopen Zwickauer Stra e 227 S GEMA i i i NI Deyicehlet 09116 Chemnitz i T SAE 11939 Phone 49 371 3377 0 Za Software Module Fax 49 371 3377 272 T Protocol Monitor Transmit CAN pe T Protocol Monitor Receive CAN H bo a Protocol Monitor Receive CANopen iQ D info gema c chemnitz de Error messages No error occurred Firmware Update FPGA Update T Load License Figure 26 License management in information dialog Document 22510 HB 1 10 E CAN Bus Tester 2 45 GE
46. ia log box shown in Figure 14 is displayed each time you call a print preview or printing so that you can adapt the test record accordingly Use the Print options menu item to select the data areas to be displayed or left out of the test record All settings you make in this dialog box are saved in the currently active document pri ges arm pace ges The areas Address field customer data Contact data of the tester and Signatures Measurement are intended specifically for the service and Station Top drive standard 300 w maintenance companies The customer ad EE dress can be entered under Change cus Please select the areas you wish to be included in the test record tomer data Access to the contact data of the v1 Address field with customer data tester service and maintenance company Contact data of the tester Segment overview can be obtained under Change tester data sd ONES NO There are various data areas which can only Automatic evaluation Wiring Test List of stations be printed if you also possess measurement data for the selected measurement point REI and or station If this is not the case the relevant selection box is disabled Disturbance free voltage range and edges oa A Various graphics can be printed as an attach Evaluationfremarks ment to the test record If no station is select Signatures ed the graphics of all listed stations will be Attachments prin
47. ical to the disturbance free voltage range this is the ideal case and represents 100 If the peak to peak voltage is twice the value of the disturbance free voltage range this is defined as 0 U ss Reflection 2 100 gt UylU disturb 0 0V 3 0V disturb All three components contribute equally to the calculation of the quality level Edge steepness Dist free voltage range Reflecions lity level Quality level i 3 3 3 2 4 Oscilloscope display with frame analysis To evaluate signal transitions and for the measuring of reflections the CBT2 records the signal waveform of the message frame and presents it in the oscilloscope display of the CBT2 application software Sampling is performed at 64 times the set baud rate over a total of 160 bits 64 x 160 10 240 points The trigger point for the recording always lies on the first edge of the relevant message frame with an advance of 10 bits The trigger point can be set in the application software 3 3 Online monitoring functions The online monitoring functions are always active independent of any measurements started in the individu al views 3 3 1 Bus status The bus status provides a quick overview of the status of your CAN bus plant A cyclic measurement over one second indicates whether or not data traffic level change is present and whether or not the CBT2 is connected correctly to the bus If the plant is stopped no da
48. ion Alt 4 Starts a single measurement key combination F5 Starts a continuous measurement key combination F6 Green Ends the measuring process after completion of a single measurement key combination F7 Document 22510 HB 1 10 E CAN Bus Tester 2 11 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software Red Ends the measuring process immediately key combination F8 D b Opens a dialog box where you can select the CAN Bus Tester 2 to be used if more than E one CAN Bus Tester 2 is connected to your PC F Opens the electronic manual Make sure that a PDF display program is installed on your at system such as Adobe Reader key F1 and FPGA configuration de Ge 4 4 3 Message bar Displays program and device information and can be used to update the CBT2 firmware GO Changes the design of the graphical user interface The message bar can be found directly beneath the toolbar and is always visible It informs you continuously on the current status of the bus and on continuously running monitoring functions Figure 5 provides a screen shot of the message bar and its elements Error Frames Counters for error frames OO Active Error Frames Os rec Passive Error Frames 0 15 N CAN type N Bus traffic load Shows the currently Permanent display of selected CAN type current bus traffic load CAN Figure 5 Message bar 4 4 3 1 Bus status Bus sta
49. ion Software A Sensorik Messtechnik ASIC Design tween the individual measuring views The menu function Protocol Monitor starts the log function for trans mitted and received CAN CANopen messages The settings dialog can be found in the Tools menu it can be used to configure the CBT2 application software and the CBT2 itself The last menu item Help compris es the electronic manual as well as program and device information 4 4 2 Toolbar For user friendly operation and switching between the measuring tasks a toolbar has been implemented in the CBT2 application software this can be found in the upper part of the program window Fehler Referenz nicht gefunden The toolbar provides quick access to the most important menu functions en DA Mie Figure 4 Toolbar Opens a new document key combination Ctrl N Opens an existing CBT2 document key combination Ctrl O Saves the active CBT2 document either with its current name or if the document has not been given a name with a new name key combination Ctrl S Shows how the active document will appear when printed Print Preview Prints the active document key combination Ctrl P Switches to the Configure segment view key combination Alt 1 Switches to the Measure All Stations view key combination Alt 2 Switches to the Measure One Station view key combination Alt 3 Switches to the Measure Online Trigger view key combinat
50. ions with designation ID type a nn Stations Measurements Stations Measurements ane CAN IDO Nod e D or MAC D Designation ID type CAN ID hex Type Measuring point Date I Time v PLC standard 100 standard measurement Condensor standard 101 Error Frame detected 05 05 2009 08 53 28 Seg me nt Actuator 1 standard 200 Measurement Online Trigger 07 05 2007 15 05 32 F e Top drive standard 300 ad Measurement at drive B 07 05 2007 14 21 00 Descri ptio n Preassure roller standard 400 A Overload Frame 26 03 2007 13 37 23 d Welder 3 extended 00 1503 40 wiring test baud rate Z Boiler 1 dee 6 00 and stations scan List of tate measurements ZA Wiring Test successfully completed M eas u re m e nts with Segment Online monitoring Designation Sample plant type measuring Recording of NR EE point and time Timeout 205 ba bus traffic load Record online monitoring and error frames Bus traffic load E 1 91 S 77 Lists of stations and active error frames 0 g o 8 16 S e measurements Passive error frames 0 E 0 S 7 043 47 928 Evaluation d e Automatic evaluation Crit quality level 75 2 Setti n g of th e Crit disturbance free voltage range 2 10 criti cal q u al ity level Crit edge rising recessive dominant 17 64 x Crit edge falling dominant recessive 21 64 disturbance free voltage range and critical edges N Wiring Test Evaluation and results Figure 8
51. is connected to a PC or notebook via the hot pluggable USB port Before you connect the de vice to a PC or notebook install the supplied software since it includes the necessary USB driver see Sec tion 4 2 Installing the software 2 4 Prevention of accidents When operating this test device it is imperative to observe the general accident prevention regulations for the use of measuring instruments The device must only be used in dry rooms 4 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 3 Functions and Measuring Principle 3 Functions and Measuring Principle 3 1 The most important measuring functions The CBT2 can measure and display the signal conditions of each CAN bus station Any problems with the appropriate station or with the bus cabling can be inferred from the results of the signal quality The CBT2 displays the following physical properties for each CAN bus station separately HM General quality level 0 100 M Disturbance free voltage range minimum interference free differential voltage M Edge steepness worst rising and falling edges of the message frame Oscilloscope display with frame analysis for the complete message frame In addition to the physical measurements the CBT2 provides online monitoring functions Le the entire bus traffic is monitored and checked continuously This includes monitoring of the bus traffic load and a counter for error fram
52. ling and rising edges The rise and fall times are determined with a resolution of 1 64 of the baud rate used and displayed as a value between 0 64 and 64 64 This value always specifies the slowest rising and falling edge of the measured frame A measured value of 0 64 means that the level change takes place in less than 1 64 of the bit width 3 2 3 General quality level The quality level is a generally valid expression of the signal quality on the bus It represents the most im portant physical properties of the bus and summarizes these in a single value The quality level is specified as a percentage value The value range is 0 100 The value is determined from the following three components important for the signal quality E Edge steepness The edge steepness is measured as x 64 Asteepness of 0 64 represents an ideal edge steepness and is valued as 100 The worst flank is defined as 32 64 and equates to 0 Edge steepness E 100 gt x 0 32 HM Disturbance free voltage range A disturbance free voltage range of 1 0 V is defined as 0 a value of 2 2 V as 100 U LOV Disturbance free voltagerange Saez AE gt Uraa LOV 2 2V E Reflection Reflection is the relationship of the disturbance free voltage range to the peak to peak voltage If 6 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 3 Functions and Measuring Principle the peak to peak voltage is ident
53. llschaft f r Mikroelektronikanwendung Chemnitz mbH Document 22510 HB 1 10 E CAN Bus Tester 2 31 GEMAC Sensorik Messtechnik ASIC Design 4 14 Settings 4 The CBT2 Application Software The Settings command in the Tools menu opens a dialog box where you can adapt the program to your specific requirements Here you can influence the behavior of the application software and of the CBT2 device The settings in this dialog box will not be saved in the current document but instead in the Windows registry for the program 4 14 1 General Display tool tips Display all warnings and mes sages again Show CAN type selection dia log at program start Enable extended protocol view Show disturbance free voltage range Show peak to peak voltage Show inactive tracks Show telegram traffic Activate trigger output on er rors even during running con tinuous measurement Enable legacy mode for distur bance free voltage range 32 If the mouse pointer is left over a particular screen element e g a button for a short time the program displays a so called tool tip with brief info about this element The CBT2 application software displays warning and message dialogs in certain situations A check box within these dialogs enables such mes sages to be skipped in the future e g Do not display this mes Sage again If you wish the messages to be displayed again select this option Sel
54. n Australia possible M User Manual EB Product CD with USB driver and application software M robust lockable case incl keys 8 2 Content adapter sets Adapter set 1 D Sub 9 e Adapter cable 1 Shorting plug 1 Terminating resistor Adapter set 2 Open style e Adapter cable 2 Shorting plug 2 Adapter for Open style Adapter set 3 M12 Adapter cable 3 Shorting plug 3 Terminating resistor T piece Adapter set 4 7 8 Adapter cable 4 Shorting plug 4 Terminating resistor T piece Adapter set 5 SAE J1939 11 e Adapter cable 5 Shorting plug 5 Terminating resistor Y piece Adapter set 6 SAE J1939 13 e Adapter cable 6 Table 3 Content adapter sets 48 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 9 Maintenance and Customer Service 9 Maintenance and Customer Service 9 1 Maintenance The CAN Bus Tester 2 is maintenance free Calibration is not necessary Any repairs must only be per formed by the manufacturer 9 2 Customer service 9 2 1 Shipping If you send the CAN Bus Tester 2 for repair use only the original or equivalent packaging Please give a brief error description and your telephone number in case we have any questions 9 2 2 Support If you have any technical questions please specify the serial number of your device its firmware and hard ware configuration version and the version of the CBT2 application software Please direct questions to you
55. ndex 6000 Resolution 6010 Slope Longi 6011 Slope Longi Operating Parameter 6012 Slope Longi6 Preset Value GOIO Clans lanni e FiFFrak 43 GEMAC Sensorik Messtechnik ASIC Design 5 The CAN Bus Tester 2 Scan Program 5 The CAN Bus Tester 2 Scan Program Name CAN Bus Tester 2 e The CAN Bus Tester 2 Scan program provides a quick overview Serial No CBT2 01014 of the type and serial number of the connected CAN Bus Tester 2 Application Software The program is entered in the Autostart folder and is called auto User Manual matically with each system start For each CAN Bus Tester 2 de Close this program Close this menu tected a symbolic icon ZZ appears in the info area of the task Figure 25 CAN Bus Tester 2 Scan bar When you click with the mouse on this icon the menu shown in Figure 25 is opened Use this menu to call the CBT2 application software and the manual directly Note If this program is not required the link can be deleted from the Autostart folder 44 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 6 License Management 6 License Management The CAN Bus Tester 2 is available in a basic version with the bus system CAN This basic version is deliv ered in the case complete with all accessories see Section 8 1 Scope of Supply Basic Set Optional bus system such as CANopen DeviceNet and SAE J1939 as well as optional so
56. ng can be updated via USB CE conformity Equipment safety EMC Low frequency interference emission e High frequency interference emission Interference immunity Table 1 Technical specifications 46 EN 60950 1 2006 A1 2010 EN 61000 3 2 2006 A1 2009 A2 2009 EN 55022 2006 A1 2007 EN 61000 6 2 2005 AC 2005 Document 22510 HB 1 10 E CAN Bus Tester 2 7 Technical Specifications GEMAC Sensorik Messtechnik ASIC Design Electrical parameters Power supply Current consumption Measuring of the differential voltage Measuring of the loop resistances Measuring of the cable length Measuring of the CAN supply voltage Potential difference between the connections CAN bus USB and oscilloscope Trigger output for the oscilloscope Via the supplied wide range power supply pack 9 36 V DC 0 55 0 15A typ 0 75 V 3 00 V typ 0 Q 800 Q typ O m 500 m e 0 100 m Resolution 0 5 m Accuracy 3 1 5m e 100 500 m Resolution 1 0 m Accuracy 10 10 m for a signal runtime of 4 5 ns m for CAN CANopen SAE J1939 4 3 ns m for DeviceNet 0 36 V lt 50 V DC or lt 71 V AC BNC socket electrically isolated H pulse approx 2 bits wide level approx 5 V Mechanical parameters Supply voltage connection CAN connection PC connection Trigger output for the oscilloscope Housing Temperature range Humidity Degree of protection of the housing Dimensions Device Case
57. o ns E CAN B ES IRIK Hi Passive error frames 47 928 24 1 on the bus to th em ost Wiring Test Stations Measurements important functions 2 Wiring Test wiring Test successfully completed Designation ID type CAN ID hex Message bar Segment f KI PLC tandard EE Sa mple p ec Condensor a P e rm a n e nt Baud rate 500 kBit s v Actuator 1 standard bus status display meng 205 v esi do Preassure roller standard Welder 3 extended 00 15 03 40 Boiler 1 standard 6 00 Record online monitoring Bus traffic load Views window Presentation of Evaluation configuration and Automatic evaluation Crit quality level 75 m eas u ri n g yi ews Crit disturbance free voltage range 2 104 v Active error frames act act act max max max on mn min min Passive error frames Crit edge rising recessive dominant 17 64 A Crit edge falling dominant recessive 21 64 Status bar General notes and CBT2 device status Figure 3 Structure of the CBT2 application software 4 4 1 Menu bar The menu bar contains the main menus File Measure View Protocol Monitor Tools and Help Use the File menu to open save export and print CBT2 documents The Measure menu provides the functions required to control measuring processes Start and Stop Use the View menu to switch be 10 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC 4 The CBT2 Applicat
58. oftware 4 15 2 1 Functions The following functions are provided by the menu and the toolbar E New Opens a Protocol Monitor Receive document key combination Ctrl N E Open Opens an existing Protocol Monitor Receive document key combination Ctrl O Save Saves the current Protocol Monitor Receive document with its existing RK name key combination Ctrl S A Delete list Deletes all received CAN messages from the list v Filter Sets a filter for the CAN messages to be received Hide unhide CAN messages Trigger Activation of a trigger on the CAN ID or data fields with adjustable amount of telegrams after trigger key F10 Scroll Displays the CAN messages in the order in which they were received Overwrite Displays the received CAN messages sorted by their CAN ID Timestamp Displays the time stamp relative to the time stamp of the CAN message re relative ceived previously j Most recent Shows the most recent CAN CANopen message in the list CH Buffered SDO trans Shows the multi part SDO transfer as overall access or as single mes fer sages CANopen only ID Switch ID display enabled display hexadecimal disabled display decimal Daa Switch data display enabled display hexadecimal h x disabled display decimal A Font Opens a dialog to setup the font in the view Messages Search Opens the Search dialog Allows searching the ID or the data field d key Ctrl F EI
59. ol logical and physical view Figure 12 Measurement One Station view After switching to the Measurement One Station view View menu or toolbar you can control the mea surement using the following icons or menu functions Measure menu Starts a single measurement key combination F5 Station selected The station to be measured is measured once No station selected All stations will be measured automatically in succession 22 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC 4 The CBT2 Application Software Sensorik Messtechnik ASIC Design Starts a continuous measurement key combination F6 Vd Station selected The station to be measured is measured cyclically No station selected All stations will automatically be cyclically measured in succession The measurement can also be ended with Stop Sfor Cancel measurement key F8 Clicking on this button ends the measurement immediately Once a station is selected the current measurement data is displayed whilst the measurement is in progress The current measurement data are displayed while the measurement is running The CBT2 out puts a trigger pulse at its BNC socket whenever a message frame of the relevant station is detected TRIG GER LED lights green With this trigger signal the transmitted frame can be displayed in true time on an oscilloscope as described in Section 2 3 4 Connecting to the digital storage oscillosc
60. on and to display a summary for all stations To select a station highlight the appropriate bar in the diagram Its desig nation and measured data are displayed in a separate table The measurement data record of a station comprises the quality level and the minimum and maximum values of the last continuous measurement to gether with the corresponding time stamps With the automatic evaluation activated Configure segment view a red line highlighting the critical quality level is shown in the bar diagram This bar is yellow if the minimum value of a station is below this limit If the value is above the limit the bar is displayed in green In addition it is possible to compare the current measurement with a previously recorded measurement To do so activate the Compare with existing measurement option and choose the relevant measurement The corresponding measured values are then displayed to the left of the bar for the current measurement see also Section 4 10 Working with measurements Document 22510 HB 1 10 E CAN Bus Tester 2 21 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 8 Measurement One Station view 4 8 1 How to use This measurement is intended to study one single station more specifically It displays the quality level the disturbance free voltage range the worst rising and falling edges the complete signal waveform and the last detected message frame for the sele
61. onitor Trans mit will be stopped ok Abbrechen bernehmen Figure 20 Protocol Monitor Receive Trigger options 40 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 15 2 4 Module CAN License note Receiving of CAN messages is only available if the corresponding software module is supported by the con nected CAN Bus Tester 2 see Section 6 License Management The software modules supported by the device are listed in the information dialog menu Help About CAN Bus Tester 2 The Module CAN option serves to receive and display CAN messages There are two modes of display The Scroll mode Presentation of the CAN messages in the order in which they are received Figure 21 rer IS2Dww Receive cmr Protocol Monitor Receive CAN File Functions View Tools Dea reen m sit wei ala a a No Time stamp relative GOIO hex Data hes Data A5CII GJ Can Controller started 26 01 2011 12 34 48 000 D OG 00 00 704 704 00 00 01 03 005 TOR Remote frame length 11 00 00 00 000 OA FF 00 00 500 TOA Remote frame length 11 00 00 000 70A FF 00 00 501 704 Remote frame length 00 001 TE nob ou MH stopped Receive continued 26 01 2011 56 08 000 5 E 3 00 00 04 515 604 40 15 10 01 00 00 00 OG 00 00 00 001 EGA 43 15 10 01 59 01 00 00 00 00 00 797 604 40 15 10 01 00 00 00 OG 10 00 00 0
62. ope If no station is selected all stations listed will be measured in succession A live display of the measurement data and the trigger output for the storage oscilloscope is not available In this case a dialog window in forms about the progress of the current measurement If no message frame from the station concerned is detected within the set timeout time see Section 4 6 Configure segment view this is indicated with Timeout In this case check the status of the station or ex tend the timeout time see Section 4 6 Configure segment view 4 8 3 Evaluation During and after the measurement of a station this view displays the current maximum and minimum mea sured valued for the quality level together with the corresponding time stamps and the disturbance free volt age range The slowest rising and falling edges are displayed as multiples of 1 64 of the bit width With automatic evaluation activated Configure segment view the instrument indicates the critical distur bance free voltage range by way of a red arrow The relevant numerical value is displayed in yellow symbol izing that the smallest measured disturbance free voltage range lies below the set limit value If the critical edge value is exceeded the edge diagram is displayed in yellow If the value is below the limit the edge dia gram is displayed in green The oscilloscope display can be switched between logical and physical representation both
63. option of exporting the data to a CSV file to display the contact data of the plant tester Use this tab to enter your contact data optional 4 14 3 E mail notification To enable e mail notification in response to a trigger event in the Measurement Online Trigger view the in tegrated e mail client must be configured Server host name Enter the address of the outgoing mail server Example smtp web de or a company SMTP server Authenticate with user name Select this function if the outgoing mail server requires authentication In and password this case enter your user name and password The password is saved in encrypted form Address sender Enter your own e mail address For the mail recipient this address will be specified as the sender of the mail Attention Some e mail servers check the validity of this address before forwarding the e mail in question Address recipient Enter the e mail address of the person to whom the e mail is to be sent Subject This entry is optional For the mail recipient it will be displayed as the mail subject Send e mail Sends a test e mail to check the configuration 4 14 4 Bit timing Use this menu to set the bit timing of the CAN controller for the selected baud rate Adjustable are the num ber of BTL cycles tq the sample point in percent and the resynchronization jump width SJW If you are using other than the recommended settings from the CiA this is indicated by a warning sign
64. ort measurement Graphics assa 30 Figure 17 Application CAhNobserveng nano nenn ennnnennnnennnnnnnnnnnnnennnnennnnennnnennnnnnnnennnnnene 31 Sidler eeikdeileiele Tun 35 Figure 19 Protocol Monitor Receive Filter OPtionsS ss 39 Figure 20 Protocol Monitor Receive Trigger optons tek ERE ERE nenennennnnnnn nenne nennen 40 Figure 21 Protocol Monitor Receive CAN Scroll mode ss 41 Figure 22 Protocol Monitor Receive CAN Overwrite mode 41 Figure 23 Protocol Monitor Receive CANOPen A 42 Figure 24 Node configuration Node Dei 43 Figure 25 CAN Bus Tester 2 SCAN BE 44 Figure 26 License management in information dalog sao 45 Document 22510 HB 1 10 E CAN Bus Tester 2 IX GEMAC Sensorik Messtechnik ASIC Design Terms Definitions and Abbreviations Used in this Manual Terms Definitions and Abbreviations Baud rate Evaluation period Differential voltage Disturbance free voltage range DSO Error frames Firmware FPGA Segment Data transfer rate 1 baud 1 bit s 44 64 68 of the bit width around the bit center within which the distur bance free voltage range is measured The voltage between the two signal lines CAN Hand CAN L UD UCAN_H UCAN L The term disturbance free voltage range is used for a voltage range of the differ ential voltage for a selected station over a frame whose value does not fall below the nominal value over the evaluation period not even for a short time Digital
65. play will reset this value to zero for both counters The display of the error frames can be changed from maximum count to per second display by clicking with the right button of the mouse Another right click of the mouse resets the display to maximum count The related tooltip displays the values of both display options The values of the error frame counters can be recorded in a CBT2 document like all other measurement data The recording can be started or stopped by clicking with the left mouse button on the error frame icon or by activating the option Record online monitoring in the Configure Segment view Any changing of the error frame counters from the time of activation is thus saved in the document and can later be displayed and printed in the test report The REC icon indicates whether the recording is currently running REC or not REC It should be taken into account that the error frame counters are reset automatically after each change or af ter execution of the automatic baud rate detection For correct frame detection and thus error analysis it is imperative that the baud rate is set correctly otherwise traffic of any kind on the bus may be detected as an error 4 4 3 3 Bus traffic load The determination of the bus traffic load like the error frame counters constitutes an online bus monitor ing function As already described in detail in Section 3 3 2 Bus traffic load the bus traffic load is mea sured and up
66. r supplier or else contact the hotline of the CAN Bus Tester 2 manufacturer Manufacturer GEMAC Gesellschaft fur Mikroelektronikanwendung Chemnitz mbH Zwickauer Str 227 09116 Chemnitz Phone 49 371 3377 0 Fax 49 371 3377 272 Web _ http www gemac chemnitz de E mail info gemac chemnitz de 9 2 3 Warranty and limitation of liability We will assume a warranty of 24 months for the CAN Bus Tester 2 commencing from the date of delivery Any repairs required during this time and which fall under the manufacturer s obligation to give a warranty will be performed free of charge Any damage resulting from improper use of the device or from exceeding of the specified technical parameters is not covered by the manufacturer s obligation to give a warranty GEMAC will only be liable for consequential damage resulting from use of the product in case of deliberate action or gross negligence The General Terms and Conditions of GEMAC Gesellschaft fur Mikroelektronikanwendung Chemnitz mbH will apply Document 22510 HB 1 10 E CAN Bus Tester 2 49 GEMAC Sensorik Messtechnik ASIC Design 10 Ordering Information 10 Ordering Information Product Description ticle No Basic set CAN Bus Tester 2 CAN Bus Tester 2 basic version PR 22517 10 Bus system CAN complete scope of supply see section 8 1 Scope of Supply Basic Set Licenses for optional bus systems CANopen License key for bus system CANopen SW 22517 01 DeviceNe
67. r diagram for each station Any minimum and maximum val ues are also marked graphically so that variations can be recognized easily This view also displays mini mum and maximum values for the quality level together with a time stamp The measurement can be carried out both as a single measurement each station is measured only once and as a continuous measurement Figure 11 shows a screen shot of this view 4 7 2 Setting and Measuring The requirements for this measurement are m The CBT2 is connected both to a PC and to the CAN bus plant bus status LED green or yellow MH The correct baud rate is selected m Atleast one station exists in the List of stations and is marked as to be measured Measurement Selection Saving Selection of an Saving of new existing measurement measurement data jal Messung Alle Teilnehmer 4 19 2007 10 07 07 v La Accept standard measurement Quality level Diagramm Quality levels off all stations including evaluation Measured values Minimum value Meas value Maximum value e Comparison 1 Re ZA edo ee Minimum maximum Compare with available measurement left timber WS 4 19 2007 4 19 2007 4 19 2007 and current values Overlaying of an 10 06 18 773 10 06 27 713 10 06 27 713 with time stamp existing second measurement on the diagramm Figure 11 Measurement All Stations view After switching to the Measurement All Stations view View menu o
68. r toolbar you can control the mea surement using the following icons or menu functions Measure menu Starts a single measurement key combination F5 All stations marked in the List of stations as to be measured are measured once The mea surement ends automatically once the whole segment has been measured once Starts a continuous measurement key combination F6 All stations marked in the List of stations as to be measured are measured cyclically The measurement can also be ended with Stop 20 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software op End measurement key F7 The measurement is carried out up to the last station to be measured and then ended Stor Cancel measurement key F8 Clicking on this button ends the measurement immediately While the measurement is running an arrow symbol is displayed beneath the station currently being mea sured If no message frame from the station concerned is detected within the set timeout time see Section 4 6 Configure segment view this is indicated with Timeout In this case check the status of the station in question or increase the timeout time 4 7 3 Evaluation The measured stations are displayed in the diagram as a bar If there are more than 32 stations you can navigate using the scrollbar Use the View option to view the measured data for the desired stati
69. r will help you if you have problems with your CAN Bus Tester 2 This chapter lists typi cal error sources and problem situations indicates possible causes and offers possible solutions If you encounter a problem with your CBT2 and or the application software which is not listed here or cannot be solved by the solutions specified here please contact the manufacturer see Section 9 2 2 Support 11 1 Problems with the CBT2 device setup Problem Questions causes amp problem recovery CAN Bus Tester 2 is not detected Questions e Error in the Windows setup for the device CBT2 connected to PC and power supply ON LED e Driver not found e Does the USB hardware of your PC function correctly e No CAN Bus Tester 2 connected e Is CAN Bus Tester 2 displayed under USB in the device manager e Is the correct operating system installed see Section 4 2 Installing the software How to solve this problem Disconnect the CAN Bus Tester 2 from PC and from the mains e If necessary uninstall the CBT2 application software e g via the Control Panel Install the CBT2 application software see Section 4 2 Installing the software Reboot your PC e Connect the CAN Bus Tester 2 to the mains power AC DC adapter and your PC USB cable e Windows should now detect a new device and install the appropriate drivers e CBT2 is recognized by the device How to solve this problem manager and CAN Bus Tester 2 Scan e Open
70. ssess one of the operating systems listed below Hardware E Processor at least 2 0 GHz 2 4 Ghz dual core recommended M atleast 512 MB RAM 1 GB recommended M Graphics card with 24 bit color depth 32 bit recommended M Resolution 1 024x768 pixels or higher m CD DVD ROM drive M free USB port Supported operating systems Microsoft Windows XP M Microsoft Windows Server 2003 HM Microsoft Windows Vista 32 Bit and 64 Bit E Microsoft Windows 7 32 Bit and 64 Bit 4 2 Installing the software The PC software is available in German and English and is supplied on CD The installation sets up the CBT2 application software on your system and installs the USB driver required by the device To this end perform the following steps 1 Insert the CD into the appropriate drive of your PC 2 The installation starts automatically 3 Follow the instructions of the setup program Note To install the USB driver you must possess administrator rights 2 Microsoft and Windows are registered trade marks of Microsoft Corporation in the USA and in other countries 3 If the installation does not start automatically start the setup program either with START Run drive letter of your CD drive Setup exe OK or else directly with drive letter of your CD drive Setup exe If you do not possess administrator rights you will be asked to enter the administrator password Document 22510 HB 1 10 E CAN B
71. storage oscilloscope Active and passive error frames Software for a microprocessor Field Programmable Gate Array programmable logic array for real time functions CAN bus segment terminated on both line ends using a resistor A repeater insert ed between line ends or connected to a line end also constitutes a segment termi nation Document 22510 HB 1 10 E CAN Bus Tester 2 1 ntrod u ction A Sensorik Messtechnik ASIC Design 1 Introduction Thank you for purchasing CAN Bus Tester 2 CBT2 You have acquired a tool supporting you in the start up analysis monitoring and servicing maintenance of your A GEMAC TRIGGER CAN bus plant E BUS STATUS Ge USB ede Thanks to its wide range of applications its high data GAN Bus transfer rate and above all through its high tolerance Tester EZ against interference in the field of plant automation the Supr CAN bus has been well established for the last few CAN om me per years Nonetheless even when starting up new plants but also during operation a large number of problems occur resulting quickly in undesired and often expensive failures The CBT2 possesses a USB port for connection to a PC or a notebook The clearly structured PC software provides straightforward operation of the device the performance and evaluation of measurements and supports you in the determination of error sources Thanks to the integrated update option you are already prepared for futur
72. t License key for bus system DeviceNet SW 22517 02 SAE J1939 License key for bus system SAE J1939 SW 22517 03 Licenses for optional software modules Protocol Monitor CAN License key for Protocol Monitor CAN transmit receive SW 22517 10 Protocol Monitor CANopen License key for Protocol Monitor CANopen receive SW 22517 11 Accessories for additional country variants Mains power cable Australia Mains power cable for Australia for AC DC adapter KB 00093 03 Table 4 Ordering information 10 1 Spare parts Mains power cable Euro Mains power cable for Europe for AC DC adapter KB 00093 00 Mains power cable U K Mains power cable for Great Britain for AC DC adapter KB 00093 01 Mains power cable U S A Japan Mains power cable for U S A Japan for AC DC adapter KB 00093 02 Adapter board CAN bus adapter to connect the CBT2 with an oscilloscope LP 10235 51 USB cable Connection between CBT2 and PC PR 00211 00 BNC cable Connection between trigger port and oscilloscope KB 03032 00 AC DC adapter Desk power pack 100 240 V 50 Hz 60 Hz 24 V 500 mA BG 00177 00 Adapter set D Sub 9 Adapter cable 1 Connecting cable to connection to CBT2 with D Sub 9 bus connector KB 03021 01 Shorting plug 1 D Sub 9 shorting plug for wiring test BG 00171 00 Terminating resistor D Sub 9 connector with terminating resistor ST 03058 00 Adapter set Open style Adapter cable 2 Connecting cable to connection to CBT2 with Open style bus connector KB 03022 01 Shorting plug 2 Open s
73. ta traffic the idle level of the bus is measured and evaluated If this value lies in an impermissible range this will be indicated Conclusions regarding er rors in the bus cabling can be drawn from the value of this difference voltage A precise description of the in dividual states is to be found in Section 4 4 3 1 Bus status 3 3 2 Bus traffic load Not only configuration problems but also diagnostic and alarm messages as well as poor transmission properties and the resulting sporadic frame repetitions can extend the bus traffic load Problems of this kind can be avoided by measuring the bus traffic load at regular intervals and saving the measured minimum and maximum values To ensure that this measurement functions correctly the baud rate of the CAN bus segment must merely be set via the CBT2 application software and the CBT2 connected to the plant The device then determines the bus traffic load cyclically over durations of one second each 3 3 3 Error frames Error frames belong to the error management functionality implemented in the data link layer in all CAN con trollers They permit detection of the following error types Document 22510 HB 1 10 E CAN Bus Tester 2 7 GEMAC Sensorik Messtechnik ASIC Design 3 Functions and Measuring Principle Bit errors Bit stuffing errors CRC errors Format errors m Acknowledgment errors Each error which is detected by the error management is notified to all other
74. ted automatically Graphics Oscilloscope display Note For reasons of formatting the test record can Data of selected measurement only be printed in DIN A4 portrait format or Data of selected stationis arger Cancel Figure 14 Test record settings Document 22510 HB 1 10 E CAN Bus Tester 2 29 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 12 Exporting measuring data 4 12 1 CSV file In addition to the option of measurement data Export measurement as output as a test record the contents of a E Graphics CBT2 document can also be specified as a Measurement el Measurement at drive B 07 05 2007 14 21 00 e Export options CSV file This file can be read using any stan Please select the areas you wish to be included in the CSV file dard spreadsheet program enabling the EZTIE nen measured data to be processed further e Contact data of the tester Segment overview If all measurements are completed the ex 7 Online monitoring port function can be called using the File X Automatic evaluation i i V Wiring Test Export menu A settings dialog appears A List of stations Figure 15 refers where measurements to be EE exported and required data areas are select V Disturbance free voltage range and edges ed The CSV data can be transferred to a Data of selected measurement spread sheet via the clipboard or saved in a fi
75. the Select device dialog under Tools select CAN Bus Tester 2 and but operator software displays No CAN choose one of the CBT2 devices from the list Bus Tester 2connected 11 2 Problems when measuring Problem Questions causes amp problem recovery Wiring test e Button is disabled hidden Questions e CBT2 operated on the supplied power pack not via the plant CAN bus e CBT2 connected to the PC and to the plant CAN bus e All bus stations removed no bus traffic bus status LED yellow e CAN supply voltage display approx 0 0 V How to solve this problem Realize the above prerequisites Baud rate scan e Button is disabled hidden Questions e CBT2 connected to PC and power supply ON LED e CBT2 detected by application software status bar e CBT2 correctly connected to plant CAN bus e Level change present on the bus bus status LED green How to solve this problem e Provide for transmission activity on the CAN bus e No baud rate detected Possible causes Incorrect bus installation excessive reflections e Excessive interference affecting the line e Defective CAN bus driver Line short circuits e Unsupported baud rate selected How to solve this problem e Correct the baud rate manually or try a different baud rate e Perform the wiring test Station scan e Button is disabled hidden Questions 52 Document 22510 HB 1 10 E CAN Bus Tester 2 11 Problem Recovery GEMAC
76. the buttons The right hand area contains the trigger status icon provides information regarding the CAN Bus Tester 2 connected and keyboard information The trigger icon is always lit when a trigger pulse was initiated at the hardware trigger output If a CAN Bus Tester 2 is connected and is in use its serial number is displayed 14 Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 5 Selecting the bus system CAN CANopen DeviceNet SAE J1939 During a measurement the CBT2 must detect message frames of the CAN bus station concerned in order to be able to evaluate its physical bus signal The assignment of the transmitted signal to a station is deter mined by the ID contained in each CAN bus message frame With the settings CANopen DeviceNet and SAE J1939 the Node ID MAC ID or Source address is decoded from the CAN ID of the message frame and used for assignment of the station As soon as this ID or Source address is detected and if it is identical to that of the station to be measured the frame concerned is physically measured Only the frames trans mitted from the stations to measure will be consulted for the evaluation of the bus physics and for the user scan RTR frames will be ignored The bus system is selected by creating a new document us Choose CAN type ing the menu File New of the CBT2 application soft ware Figure 7 ref
77. tion Ctrl N Opens an existing Protocol Monitor Transmit document key combina tion Ctrl O Save Saves the current Protocol Monitor Transmit document with its existing name or if the document has not yet been given a name with a new name key combination Ctrl S p Show Sequence View Shows the sequence view y Show Message View Shows the CAN message view vw Reset Window Reset the windows layout to its default values Layout Document 22510 HB 1 10 E CAN Bus Tester 2 35 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 15 1 2 View Messages CAN messages can be created and configured in the View Messages In this view the CAN messages are transmitted once or repeatedly ty Create Message Creates a new CAN message at the current position key Ins ga Duplicate Message Duplicates a selected CAN message key Ctrl Ins x Delete Message Deletes the selected CAN message key Del 4p Message Move Up Moves a selected CAN message in the list one place up key Shift Ar row Up 4 Message Move Down Moves a selected CAN message in the list one place down key Shift Arrow Down ID Switch ID display enabled display hexadecimal disabled display decimal bata Switch data display enabled display hexadecimal disabled display decimal A Font Opens a dialog to setup the font in the view Messages The following properties can be use
78. tus Quick overview of the current bus status CAN supply voltage Level change detected Q 24 2 V on the bus N Supply voltage Display of the optional CAN supply voltage The bus status display comprises multicolor LED graphics and a description text The LED changes its color depending on the bus status For a detailed description of the bus status measurement please refer to Sec tion 3 3 1 Bus status The following states can occur LED gray CAN Bus Tester 2 not connected to power supply and or PC or differential voltage in impermissible range 0 5 V 0 9 V ond difference voltage greater than 0 9 V LED green Level change detected on the bus second difference voltage less than 0 5 V bus idle LED yellow Bus static no level change detected on the bus within the measuring time of one LED red Bus static no level change detected on the bus within the measuring time of one sec Document 22510 HB 1 10 E CAN Bus Tester 2 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 4 3 2 Error frame counter The error frame counter is an online bus monitor The CBT2 detects all active or passive error frames OC curring on the connected CAN bus for a detailed description of error frames see Section 3 3 3 Error frames The maximum count for error frames is 1 000 000 If this number is exceeded gt 1 000 000 is dis played A double click of the mouse on the dis
79. tyle shorting plug for wiring test BG 00172 00 Open style adapter Open style adapter with socket two screw terminals per contact BU 03068 00 Adapter set M12 Adapter cable 3 Connecting cable to connection to CBT2 with M12 bus connector KB 03023 01 Shorting plug 3 M12 shorting plug for wiring test BG 00173 00 Terminating resistor M12 connector with terminating resistor ST 03008 00 T piece M12 branch connector ST 03007 00 Adapter set 7 8 Adapter cable 4 Connecting cable to connection to CBT2 with 7 8 bus connector KB 03115 00 Shorting plug 4 7 8 shorting plug for wiring test ST 03045 00 Terminating resistor 7 8 connector with terminating resistor ST 03060 00 50 Document 22510 HB 1 10 E CAN Bus Tester 2 Sensorik Messtechnik ASIC Design Product bosga Janisieno T piece 7 8 branch connector ST 03043 00 Adapter set SAE J1939 Adapter cable 5 Connecting cable to connection to CBT2 with SAE J1939 11 bus connector KB 03114 00 Adapter cable 6 Connecting cable to connection to CBT2 with SAE J1939 13 bus connector KB 03113 00 Shorting plug 5 SAE J1939 11 shorting plug for wiring test BG 03005 00 Terminating resistor SAE J1939 11 connector with terminating resistor BU 03097 00 Y piece SAE J1939 11 branch connector ST 03056 00 Table 5 Ordering information Spare parts Document 22510 HB 1 10 E CAN Bus Tester 2 51 GEMAC Sensorik Messtechnik ASIC Design 11 Problem Recovery 11 Problem Recovery The following chapte
80. us Tester 2 9 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 3 General notes on operation 4 3 1 Help When designing the CBT2 application software special attention was devoted to a clear structure and a self explaining graphical user interface All elements of the user interface display detailed explanations when the mouse pointer is moved over a control element tool tip The manual is also supplied in electronic form and can be called up both via the help function and with the F1 key 4 3 2 Data saving All measurement protocol and export data set using the CBT2 application software and determined via the CBT2 device at the CAN bus plant can be stored in a document with the file extension cbt2 The docu ment can be opened either by double clicking on the file in the Windows Explorer or by dragging the file to the program drag amp drop 4 4 Program structure The graphical user interface of the CBT2 application software is divided into various areas Figure 3 Title bar Name of document and active view CRUZ p M e n u ba r ikk Sample project cbt2 CAN Bus Tester 2 Application Software Configure segment D Fa ZG A GEMAC Toolbar Quick access File Measure View CAN Monitor Tools Debug Help Access to file print dedu ru TE KO and measuring Active error frames 48 CAN supply voltage Level change detected fu ncti
81. which the trigger occurred is marked with a T It is possible for there to be several trigger events at one trigger time The oscilloscope display shows the message frame which produced the trigger All setting and evaluation possibilities correspond to those for the oscilloscope display in the Measurement One Station view Document 22510 HB 1 10 E CAN Bus Tester 2 27 GEMAC Sensorik Messtechnik ASIC Design 4 The CBT2 Application Software 4 10 Working with measurements Each measurement is initially made as a default measurement and is not saved in the document This en sures that existing measurements in a document are not overwritten Furthermore comparison measure ments can be performed quickly without altering the existing document The default measurement is saved with the Accept Measurement button in the individual views When do ing so it is possible to either save the default measurement as a new measurement or overwrite the mea surement data of an existing measurement Measurements can be managed conveniently in the measurement list of the Configure segment view see Section 4 6 8 List of Measurements 4 10 1 Measuring at different points When starting up and for troubleshooting on a CAN bus plant it is generally recommended to perform mea surements at different points of the bus cabling at least at the two bus ends To be able to compare these measurements conveniently the CBT2 application
82. y and regular checks already from start up help locate fault sources before they lead to failures Such checks increase the signal quality the bus will work reliably and is more resistant to electromagnetic interference Measurements at regular intervals are able to detect a gradual loss of quality before this leads to an error frame Through preventive maintenance it is possible to save the time and cost which would arise due to an unexpected plant standstill Document 22510 HB 1 10 E CAN Bus Tester 2 1 GEMAC Sensorik Messtechnik ASIC Design 1 Introd uction The CAN Bus Tester 2 will help you efficiently in checking your CAN bus system and in finding faults and their causes To this end it provides the following scope of functions M Bus systems CAN CANopen DeviceNet and SAE J1939 m Automatic detection of the baud rate used M Automatic determination of all stations in the plant Bus station and measuring point related display of the signal conditions general quality level 0 100 disturbance free voltage range rising and falling edges oscilloscope display with frame analysis for the complete message frame M Real time monitoring of physical and logical errors online logger E Continuous monitoring of bus status bus traffic load error frames active passive errors BE Real time capable hardware trigger output for user or error related analysis by way of ext DSO E Simple possibilities for comparisons with old
83. y combination F6 Starts a continuous online trigger measurement Measuring does not stop when error events oc cur The error events are displayed graphically in the corresponding channel op End measurement key F7 The continuous online trigger measurement is switched to single measurement so that measuring stops automatically when the next error event occurs Cancel measurement key F8 Clicking on this button ends the measurement immediately The time axis resolution for the recording of the trigger events is set in the Resolution selection box The shorter the selected time the greater the amount of measurement data to be assessed Within the set time time slice each trigger event is recorded in its corresponding channel Several trigger events e g two faulty frames within one time slice can no longer be distinguished In this case the resolution must be in creased It is not meaningful to set the resolution to a time less than the time required for a message frame at the set baud rate Each time slice is represented in the display with the width of one pixel In Single Measurement the CAN controller of the protocol monitor will automatically be stopped when a trig ger event occurs if the option Stop CAN controller on trigger is activated The message frame in the oscil loscope display then corresponds to the last entry in the receive window of the protocol monitor The frames preceding the trigger can thus

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