NOTE: We've now made it even easier to log OBD2 data!
See our OBD2 Data Logger guide if this is what you need.
Want to log messages that need to be requested - like OBD2?
If so, you're in luck:
It is now possible to use the CLX000 to transmit messages to the CAN-bus.
In the figure above, the OBD-based speed and RPM parameters have been queried by the vehicle logger, the responses logged, converted and plotted. Below we explain how to log OBD2 PIDs with a CLX000.
Before starting, you may want to check our OBD2 intro for OBD-II PIDs explained in simple terms!
To illustrate this feature, let's do an example on how to log OBD-II parameter data.
Below, we've added a few OBD-II PIDs to show how they can appear in the CLX000 CONFIG.ini file.
A few comments:
Let's take a specific example:
If you wish to query the RPM parameter in an OBD2 context, you'll need to set the msgData field to 02 01 0C 55 55 55 55 55.
So how do you set this up in our CANvas software?
Below image shows an example of the CANvas 'Transmit List', which is set to log three OBD-II messages (Speed, RPM, MAF).
Note that 'Destination' is set to None, which means that only 'response messages' are logged - this is of course configurable.
Note: As mentioned above the specific case of OBD2 is now "plug & play" in CANvas - learn more here.
You're probably wondering what the output looks like!
Below is a log file example recorded from a regular passenger car using a CL2000.
The logger has been configured to query OBD2 data on Speed and RPM. Notice how this example includes both the request (denote as Type 8 below) and the following response (Type 0).
Want to try and convert some of the messages below?Try out our OBD-II online conversion tool!
Again, the above example is simply a case example using OBD2. The transmit feature is fully flexible and allows for countless other applications.
That's not all CANvas can do, however...
Check out our full break down of our free CANvas software here - or go to our GUIDES page for other cool use case articles!
If you have questions, please contact us - we aim to respond within 24 hours.
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OBD2 EXPLAINED - A SIMPLE INTRO
CAN BUS INTERFACE: STREAMING OBD2 DATA WITH WIRESHARK
REVERSE ENGINEERING CAN BUS MESSAGES WITH WIRESHARK