SAE J1939 DBC file - buy now:
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The J1939 DBC file is a 'CAN database' (DBC) that enables you to decode raw J1939 data from most heavy duty vehicles - including trucks, buses, tractors, excavators, forklifts etc. The DBC file format is the de facto standard for storing 'decoding rules' for how to interpret raw CAN frames - and extracting the actual physical value parameters packed within.

In the J1939 standard, CAN signals are referred to a Suspect Parameter Numbers (SPN) and are grouped by Parameter Group Numbers (PGN). The J1939 DBC file contains 1800+ J1939 PGNs and 12000+ J1939 SPNs. The DBC file is derived from the J1939 Digital Annex (J1939 DA), which is also included in the bundle.

The J1939 DBC can be used in practically all CAN bus software/API tools today and provides a convenient method for both heavy duty OEMs and aftermarket users to decode data across different heavy duty vehicle models and brands.

In this intro we explain the basics of the J1939 DBC file:

- 00:00 Introduction
- 00:15 Basics of the J1939 standard
- 01:16 How to log & decode raw J1939 data from a truck
- 02:38 Using the J1939 DBC file in practice
- 03:45 Practical tips on J1939 data logging & decoding


This video is part of our extremely popular series of CAN protocol intros. Below you'll find links for our full playlist, as well as the more detailed articles.

Playlist for all intro videos: [ Ссылка ]

1) CAN bus: [ Ссылка ]
2) OBD2: [ Ссылка ]
3) J1939: [ Ссылка ]
4) CANopen: [ Ссылка ]
5) CAN FD: [ Ссылка ]
6) LIN bus: [ Ссылка ]
7) DBC files: [ Ссылка ]


If you're interested in learning more about logging CAN bus data, we recommend that you check out our below intros to our CANedge CAN bus data loggers, our CANmod sensor-to-CAN modules and our free software/API tools:

Learn about CAN bus data logging:
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Learn about the CANedge and CANmod:
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1) CANedge1: [ Ссылка ]
2) CANedge2: [ Ссылка ]
3) CANedge3: [ Ссылка ]
4) CANmod.gps: [ Ссылка ]
5) CANmod.temp: [ Ссылка ]
6) CANmod.input: [ Ссылка ]

See also our intros to practical J1939 logging & software:

1) J1939 data logger: [ Ссылка ]
2) J1939 dashboards: [ Ссылка ]
3) J1939-to-USB interface: [ Ссылка ]
4) asammdf GUI: [ Ссылка ]
5) J1939 reverse engineering: [ Ссылка ]

For more tutorials, see our overview: [ Ссылка ]

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At CSS Electronics we specialize in simple-to-use, pro specs and interoperable CAN bus data loggers - like the CANedge and CLX000 series. The devices let you record raw data from e.g. cars, trucks, industrial machinery and other CAN based applications onto an 8-32 GB SD card. The devices are interoperable, meaning you can process the data in your favorite existing software - or use our 100% free and open source software/API tools.

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Products: [ Ссылка ]
Software: [ Ссылка ]
Case studies: [ Ссылка ]

We offer 100% free technical sparring - contact us:
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