User manual

CANbus Trigger, Decode, and Measure

CANbus-TD-TDM-OM-E RevB

Time from Trigger Point to CAN Message Parameter

Time from Trigger Point to CAN Message (Time@CAN)

This measurement parameter is used to measure the time from the trigger point to the defined

CAN message. The trigger could be a CAN message, a simple edge trigger, or something more

complicated, like a Pattern or a Dropout SMART Trigger. This makes it a very powerful tool to

understand the time delay from the occurrence of a certain set of conditions to the start of a

CAN message.

Time@CAN Measurement Parameter Setup Detail

To access the setup dialog, touch Setup for that parameter in the CAN Measure/Graph Setup

dialog. The Px Parameter dialog box is displayed. On the right side of this dialog box, there is a

setup dialog labeled with the measurement parameter name. Touch the tab with the parameter

name on it, and you will access the following dialog:

Characterizing CANbus System Performance

System Performance Characterization Overview

The oscilloscope contains a number of built-in tools, such as cursors, measurement parameters,

statistics, and optional graphical analysis tools that you can use to characterize your CANbus

system’s performance. These can be used on the CAN Trace and CAN Zoom just like they are

used on any channel. In addition, you can use normal Edge or SMART Triggers on an analog

channel input to trigger the oscilloscope when a certain analog signal occurs, and then measure

to a particular CAN message.