CSS Electronics - ISOBUS DBC File - Decode Tractor Data [ISO 11783-7 Database]

The ISOBUS DBC file contains decoding rules for converting raw CAN bus data to 'physical values' (m/s, %, ...). This lets you easily decode data from agriculture vehicles like tractors.

DBC is a CAN database format used in most automotive tools - incl. our CAN software/APIs.

The download includes the ISOBUS DBC and Excel file based on the public ISO 11783-7 PGN/SPN data. The cost is a one-time fee.

See also our J1939 DBC and NMEA 2000 DBC, both of which can be relevant in agriculture vehicles.

DECODE ISOBUS

Convert ISOBUS data in wide range of software/API tools

~100 PGN

The ISOBUS DBC contains ~100 PGNs and 650+ SPNs

REVIEW FIRST

Use our CAN ID converter to check if your PGNs are covered

CROWD INPUT

Benefit from free corrections based on large user base

SAVE HOURS

Avoid manually constructing the DBC file from scratch

COMBINE
Easily combine with our J1939 & NMEA 2000 DBC files

 

Easily combine with our J1939 & NMEA 2000 DBC files

What is a DBC file? A DBC file is a standardized file format for storing the "rules" on how to interpret raw CAN bus data. It contains details on what 'signals' (e.g. Distance, Vehicle Speed, …) are contained within which 'messages' (i.e. CAN IDs). In the J1939 and ISOBUS standards, 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.

 

When is the database useful?

The ISOBUS protocol is used across most agricultural machinery, including tractors, harvesters, sprayers etc. Because the protocol is standardized, you can use the ISOBUS DBC file to decode data across the majority of farm vehicle brands/models.

See also our J1939/ISOBUS telematics intro.

Will the DBC decode all ISOBUS SPN signals?

In our experience, the DBC typically lets you decode 60-80% of the ISOBUS signals (SPN) from a ISOBUS-based farming vehicle, with the rest being proprietary OEM-specific data. In most cases, this lets you extract multiple useful signals, e.g. information related to speed, distance, heading, hitch positions etc. With that said it differs vehicle-by-vehicle, so we always recommend to perform tests for the specific farm vehicles you need to record ISOBUS data from.

Can I test what data the DBC will decode?

If you're using our CAN loggers, we can offer to decode a sample log file with the DBC before you decide whether to purchase the ISOBUS DBC file (this sample conversion is 100% free). This way you can see exactly what data parameters you can extract from a specific vehicle (or multiple vehicles) before deciding. Simply contact us with your data samples.

If you do not have one of our CAN bus data loggers, you can perform an evaluation by parsing the unique CAN IDs from your application (e.g. logged with another logger) into our CAN ID to PGN converter to check which of your CAN IDs are matched by the DBC file.


What PGNs are in the DBC?

If you have a list of CAN IDs from a ISOBUS-based vehicle, you can paste them in our 'CAN ID to PGN converter':

  • Convert raw CAN IDs to PGNs
  • Convert PGNs to raw CAN IDs
  • Check if the PGNs are in the DBC
Open converter
GENERAL
Standard(s) ISOBUS (ISO 11783-7)
#PGNs~100
#SPNS650+
DescriptionsPartial SPN descriptions included in DBC (full included in the Excel file)
AttributesSPN ID, VFrameFormat
Value tablesNot included (can be looked up via the Excel file)
Network nodesNot included
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