If your intention is the mere monitoring of SAE J1939 data traffic, you don’t need to set up the ECU, but if you want to transmit SAE J1939 data (PGNs), you need to claim a node address.
This section is where you configure an SAE J1939 ECU through parameters such as Preferred Node Address, Negotiable Address Range, and the NAME setup. If you are not sure how to set the parameters, simply go with the default parameters. They are set up to have the ECU operate on the safe side without interfering with your J1939 network.
Don’t forget to click on ECU Simulation Mode and then the Claim Address command button before proceeding.
→ Download/View the JCOM1939 Monitor User Manual (PDF)…
A Comprehensible Guide to J1939 is the first work on J1939 besides the SAE J1939 standards collection. It provides profound information on the J1939 message format and network management combined with a high level of readability.
The information in this book is based on two documents of the SAE J1939 Standards Collection:
- J1939/21 – Data Link Layer
- J1939/81 – Network Management
This book is an attempt to create an enjoyable and readable J1939 reference for everybody. The information provided in this book is, besides the SAE J1939 Standards Collection, based on publicly available information such as, but not limited to web sites and printed literature as well as contributions by engineers familiar with Controller Area Network and the J1939 protocol. The information in this book, while based on the J1939 standard, is not a reproduction of any copyrighted SAE document. More Information…
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