A Comprehensible Guide to J1939

SAE J1939 has become the accepted industry standard and the vehicle network technology 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.

Wilfried Voss is the author of the "Comprehensible Guide" series covering topics like Controller Area Network (CAN), SAE J1939, Industrial Ethernet, and Servo Motor Sizing. Mr. Voss has worked in the CAN industry since 1997 and before that was a motion control engineer in the paper manufacturing industry.  He has a master's degree in electrical engineering from the University of Wuppertal in Germany.

Mr. Voss has conducted numerous seminars on industrial fieldbus systems such as CAN, CANopen, SAE J1939, Industrial Ethernet, and more during various Real Time Embedded And Computing Conferences (RTECC), ISA (Instrumentation, Systems, and Automation Society) conferences and various other events all over the United States and Canada.

Mr. Voss has traveled the world extensively, settling in New England in 1989.  He presently lives in an old farmhouse in Greenfield, Massachusetts with his Irish-American wife and their son Patrick.