SAE J1939 - Serial Control And Communications Vehicle Network

The Society of Automotive Engineers (SAE) Truck and Bus Control and Communications Subcommittee has developed a family of standards concerning the design and use of devices that transmit electronic signals and control information among vehicle components. SAE J1939 and its companion documents have quickly become the accepted industry standard and the Controller Area Network (CAN) of choice for off-highway machines in applications such as construction, material handling, and forestry machines.

J1939 is a higher-layer protocol based on Controller Area Network (CAN). It provides serial data communications between microprocessor systems (also called Electronic Control Units - ECU) in any kind of heavy-duty vehicles. The messages exchanged between these units can be data such as vehicle road speed, torque control message from the transmission to the engine, oil temperature, and many more.

I used the following presentation for seminars during RTECC (Real Time Embedded Computing Conference) events all over the United States and Canada. All content is based on my book A Comprehensible Guide to J1939.

Table of Content

1. SAE J1939
2. Technical Literature
3. What is SAE J1939 - General Aspects
4. SAE J1939 Applications
5. What is CAN Bus - General Aspects
6. SAE J1939 - Quick Reference
7. SAE J1939 - Quick Reference - Continued
8. SAE J1939 - Quick Reference - Continued
9. SAE J1939 - Standards Collection
10. SAE J1939 - Standards Collection - Continued
11. SAE J1939 - Message Format (J1939/21)
12. Message Format
13. Parameter Group Number
14. Parameter Group Number - Continued
15. Parameter Group Number - Continued
16. PGNs and SPNs
17. PGNs and SPNs - Continued
18. PGNs and SPNs - Continued
19. PGN Range
20. Proprietary Parameter Groups
21. Communication Methods
22. Parameter Group Number
23. Parameter Group Number - Continued
24. Source Address
25. Message Types
26. Request Message
27. Acknowledgment Message
28. Multi-Packet Transport
29. BAM - Broadcast Announce Message
30. Transport Protocol (TP)
31. Transport Protocol (TP) - Continued
32. Broadcast Data Transfer
33. Flow Control
34. Network Management
35. ECUs and CAs
36. Address and NAME
37. Address Claiming
38. Preferred Addresses
39. Address Claiming
40. Address Claiming - Continued
41. Address Claiming - Continued
42. Address Claiming - Continued
43. Address Management Messages
44. Network Topology
45. Network Topology - Continued
46. J1939/13 Off-Board Diagnostics Connector
47. SAE J1939 Literature

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