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J1939 DBC File – PGN & SPN Data [2020-03]
$85.99
What is a J1939 DBC file?A DBC file is a standardized method for storing the rules on how to interpret raw CAN bus data. In particular, it contains details on what signals (e.g. RPM, Vehicle Speed, ) are contained within which messages (i.e. CAN IDs).In the J1939 standard, messages are…
What is a J1939 DBC file?
A DBC file is a standardized method for storing the rules on how to interpret raw CAN bus data. In particular, it contains details on what signals (e.g. RPM, Vehicle Speed, ) are contained within which messages (i.e. CAN IDs).
In the J1939 standard, messages are referred to as Parameter Group Numbers (PGN) and signals as Suspect Parameter Numbers (SPN).
Further, a DBC file includes names, descriptions, positions and lengths of the signals – as well as how to offset & scale them. In short, the J1939 DBC file is key to decoding your data.
Features:
– Decode J1939: Quickly convert J1939 data with broad DBC software support
– 1000+ PGNs: The extensive DBC contains 1,000+ PGNs and 6,400+ SPNs
– Review first: Use the Google Sheet to check if your PGNs are covered
– Crowd input: Benefit from free corrections based on large user base
– Save hours: Avoid manually constructing a J1939 DBC from scratch
– Legal license: Includes legal license similar to the J1939 Digital Annex (price: 250$)
This J1939 DBC file download includes:
– An SAE J1939 DBC file with ~1060 PGNs and ~6400 SPNs
– Excel file with full SPN descriptions from the J1939 DA
– One legal license (1 user, 1 PC) matching the J1939 Digital Annex license (stand-alone price: 250$)
When is a J1939 DBC used?
The J1939 protocol is used across most heavy-duty vehicles, including commercial trucks, tractors, transit buses etc. Because the J1939 protocol is standardized, you can use the J1939 DBC file to decode data across heavy-duty vehicle brands/models – e.g. for use in J1939 telematics.
What PGNs are in the DBC?
If you have a list of CAN IDs from a J1939-based vehicle, you can paste them in our ‘CAN ID to J1939 PGN converter’:
– Convert raw CAN IDs to J1939 PGNs
– Check if the PGNs are in the J1939 DBC
– Convert J1939 PGNs to raw CAN ID
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