How to read existing J1939 nodes on the bus

Firmware
1

Hi, I need to read the J1939 nodes on the bus. What is the DM message or any other way to find the J1939 devices on the bus

2

Hi Naresh-

Can you please elaborate on what you're trying to do? If you search these these forums there are a number of J1939 posts that may be of help to you. Hope that helps!

Thanks,
Colleen

3

On the CAN bus, if any J1939 nodes are present, I want know their information with Source Address. What command message I have to send so that all J1939 nodes gives their respective information.

Thank you.

1 Like
4

Hi @nareshkumarv , I never had to do that, but maybe you can find what you are looking for on these links:

link 1:

https://copperhilltech.com/a-brief-introduction-to-the-sae-j1939-protocol/

link 2:

best

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