•  Trigger and Decode
•  Mixed-mode
  (Analog, Digital, CAN)
•  Measure & Graph

With the new CANbus TDM/TD, LeCroy provides a dramatically improved solution for testing and debugging CAN systems. Now Analog, CAN Message data, and Digital signals can all be viewed on a single instrument—an easy-to-use, everyday bench oscilloscope. With this single display and the robust CANbus TDM/TD toolset, engineers will capture more information and develop more insight easily and quickly. By eliminating the need for a variety of instruments and displays, the LeCroy
CANbus TDM/TD system sets a new standard for CAN bus testing.

Here’s how efficient this new system is:

• The oscilloscope triggers on pre-defined CAN messages.
• It captures, decodes, and shows them on the display.
• Other analog or digital signals on the CAN ECU can also
  be captured and displayed.
• Cursors, measurement parameters, and graphing tools
  quickly characterize timing and other signal relationships.

• Capture > 10,000 CAN messages in one acquisition.

• Trigger on CAN Data, Remote, or Error Frames.

• Decode CAN messages on the oscilloscope display.  

• View analog, digital, and CAN signals. 

• Measure performance and statistically analyze.

• Graph and plot performance data.

With CANbus TD/TDM, the right toolsets make all the difference in understanding CAN system performance. Anomalies are identified more readily; debugging proceeds more quickly.

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1) Powerful and flexible TRIGGER capability. Trigger on CAN or Analog signals. Set CAN message ID and DATA conditions. Trigger on Data, Remote, or Error frames.
2) One touch ZOOMING of the CAN message— especially helpful with long acquisitions of thousands of CAN messages.	Click on the image for higher resolution
3) DISPLAY ANALOG AND CAN SIGNALS. Add digital measurement capability with LeCroy’s MS-32 option.	Click on the image for higher resolution
4) ERROR FRAME HIGHLIGHT allows you to intuitively locate error frames in long acquisitions.
5) LONG CAPTURE TIME. Optional memory (up to 12 Mpts/Ch) allows capture times of 10 s or more (2 Mpts/Ch standard).
6) CAN DECODE is done quickly and automatically, with information overlaid on the CAN physical layer signal.

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Quickly SEARCH through CAN message data. Jump to next conditional frame. Automatically view the searched frame in a zoom window.

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EXACT NODE MATCHING by setting Tseg1, Tseg2, and other values exactly the same as your nodes under test, just like the tools that you are used to.

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Understand True Performance . . . Quickly

In this example, the CAN trigger is set to trigger on ID=300. There is an analog signal that correlates with AN ID=300. An automatic measurement is used to determine by how much time this analog signal precedes the CAN signal. More than one measurement must be made, and statistical data must be accumulated to ensure that there are no infrequent events that would not meet specifications. The automatic CANtoAnalog parameter and the oscilloscope’s NORMAL trigger are used to capture thousands of time measurements between the CAN message and the Analog signal. The Histogram (shown as Trace F1, on the bottom) displays the distribution of
the different measurements. It is clear that there is a wide range of different measurements, that there is modality to the measurements, and that there are outlying measurements. The Histogram display gives us a clear indication that the distribution is not Gaussian, enabling understanding of cause and effect, and worst-case events.

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Insight You’ve Never Had Before

In this example, many CAN messages are acquired. These CAN messages represent the CAN data for a steering angle sensor. The automatic CANtoValue measurement parameters were used to extract angular speed in degrees/second and angular data in degrees for the steering angle sensor ID. A Track function was applied to each CANtoValue measurement parameter. Steering angle is displayed with a vertical scale of 50°/div. Steering angle speed is displayed with a vertical scale of 200 angles/s. A cursor is also used to display instantaneous voltage, time, angle, and angle/s data. It is now easy to see how the data is varying with time, and how it corresponds to the original CAN signal, time aligned vertically. This data could also be compared to other analog signals, if desired.

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LeCroy CANbus TDM contains unique graphing and statistical analysis capability that can be used to validate and analyze CAN system performance.

Histogram A graphical plot of measurement data for any automatic measurement parameter, including CAN timing parameters, frequency, amplitude, etc. Worst-case values, modality, and stability can be intuitively understood quickly; and root cause of irregularities debugged. Up to 2 billion measurement values can be histogrammed.	Click on the image for higher resolution
Track A graphical plot of measurement data values that is time-correlated to all other measurement signals. The vertical scale of the Track is the measurement value, and the horizontal scale is time. As the measurement value changes with time, the Track changes, which enables intuitive understanding of signal modulation and other behavior. Track is ideal for understanding PWM or F-V converter signals.	Click on the image for higher resolution
Trend A graphical plot of measurement data that is very similar to chart recorder functionality. Like Track, Trend displays measurement values on the vertical axis, but data can be accumulated over many oscilloscope acquisitions (up to 1 million events). Trend is ideal for recording temperature, pressure, stress, strain, or other slow-speed analog signals.	Click on the image for higher resolution

Specifications and Ordering Information

Customer Service

LeCroy scopes are designed, built, and tested to ensure high reliability. In the unlikely event you experience difficulties, our digital oscilloscopes are fully warranted for three years. This warranty includes:

• No charge for return shipping
• Long term 7-year support
• Upgrade to latest software at no charge