CSS Electronics - Model SAE J1939 -DBC File for Heavy-Duty Vehicles
The SAE J1939 DBC file provides essential decoding rules for converting raw J1939 data from heavy-duty vehicles into understandable physical values. It supports a wide range of J1939-based software and API tools, offering broad compatibility with various vehicle makes and models. The DBC includes over 1800 Parameter Group Numbers (PGNs) and more than 12000 Suspect Parameter Numbers (SPNs). Providing a legal license based on the J1939 Digital Annex Excel file, it simplifies integration into vehicle data analysis processes. While it covers most standard J1939 signals, users may need to address manufacturer-specific proprietary PGNs manually. The package aims to minimize the complexity and time required for manual DBC file construction, enhancing efficiency for automotive engineers and analysts. Support for multiplexed messages is provided in a simplified format, with the option for future updates based on demand.
The SAE J1939 DBC file contains decoding rules for converting raw J1939 data to 'physical values' (km/h, %, ...). This lets you easily decode data from heavy duty vehicles (trucks, buses, tractors, ...).
DBC is a CAN database format used in most automotive tools - incl. our CAN software/APIs.
GENERAL :
- Standard(s) : J1939 Digital Annex - corresponds mainly to J1939-71
- #PGNs : 1800+
- #SPNS : 12000+
- Multipacket : Multipacket syntax is used for the multipacket PGNs included in the DBC
- Multiplex : Some multiplexed messages are included, but with "regular" syntax (not multiplex)
- Descriptions : Partial SPN descriptions included in DBC (full included in Digital Annex)
- Attributes : SPN ID, VFrameFormat
- Value tables : Not included
- Network nodes : Not included