NI CAN Device Simulator

[Khalid]

Have couple of questions about the NI CAN Device Simulator:

https://www.ni.com/en-us/support/model.can-demo-box.html

1.  Does this Simulator work without the NI-CAN interface cards?  I.e., can I use it as one of the CAN devices on the bus? 

2.  Does it support the SAE-J1939 standard? 

Thank you in advance!

-Khalid Ansari

[biker2000]

Hi Khalid,

To answer your questions:
1. The NI CAN Device Simulator works without NI-CAN interface cards. However, the examples dicussed in the NI CAN Demo Box User Guide require NI-CAN (and thus NI-CAN hardware) and LabVIEW.
2. The NI CAN Device Simulator uses only the standard 11-bit arbitration IDs (formerly known as CAN 2.0 A) whereas the SAE J1939 protocol uses the ‘extended’ 29-bit arbitration (formerly known as CAN 2.0 B). As the arbitration IDs cannot be reprogrammed you can use the device simulator in a J1939 network, it would not be a real J1939 device, however.

-B2k

[Khalid]

Hi B2k,

Thanks for the prompt response! 

So if I understood you correctly, since the Simulator supports only 11-bit Arbitration IDs, it will be outputting data frames with only 11-bit IDs, right?.

-Khalid

[dhuff]

Yes, it only outputs 11 bit frames, and at a very slow baud rate, slower than you need. It is mainly used as a training aid for CAN with Labview.  You need 29 bit ID's with 250K baud. 

Check your GMAIL, I sent you a message about what you are looking for.

[Khalid]

Thank you!  Appreciate your help.

-Khalid

[dkas]

Related Subject

I'm looking to do some ATE and maybe HIL using LabView. J1939 will be a large part of this, is it possible to use another CAN hardware supplier for this since 29bit identifiers are not used?

[MichaelChaney]

I just want to clarify that our CAN interface boards do support J1939.  It is only our CAN Device Simulator that doesn't support J1939.

[dkas]

Oh ok I see. All clear, thanks mike!