CODEWITHSUNDEEP
can-busj1939
Günkut Ağabeyoğlu
Günkut Ağabeyoğlu

Reputation: 424

J1939 Is address claiming necessary before requesting spesific data? Difference between address claiming and parameter group claiming?

In or order to request spesific data from one node that uses J1939 protocol, is it necessary to claim address before requesting that data? Do we also need to request PGN before that process? Or can we directly request data without requesting PGN or claiming address? Thanks.

Upvotes: 0

Views: 1096

Answers (2)

Günkut Ağabeyoğlu
Günkut Ağabeyoğlu

Reputation: 424

Yes, I can confirm that it works if you have only 2 nodes. I tested it and if you have only 2 nodes you do not need to claim an address for J1939 protocol.

Upvotes: 0

Swanand
Swanand

Reputation: 4115

Address claiming indicate that you are owner of the perticular address AND there is no other node with same address.

If you know the network will not have any other node with your node address, you can directly request the data. However, you will not comply with J1939 standards.

Your device will not be generic and will be specific to your own network (where you are sure that no other node is using same address).

In short, You can do away address claiming but you should not!

Upvotes: 1

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