J1939: High Speed ISO 11898-1 CAN-based Communications Network to Transmit Electronic Signals and Control Information among Vehicle Components

All the controllers on the Combine communicate with each other using J1939 protocol. J1939 is a series of SAE recommended practices that have been developed to provide a standard architecture by which multiple electronic systems on a vehicle can communicate. It was developed by the Truck and Bus Control and Communications Network Subcommittee of the Truck and Bus Electrical and Electronics Committee, but its use is not limited to truck and bus applications. J1939 has been implemented in a broad range of vehicles and transportation systems. J1939 provides a communication protocol over a CAN network. The CAN network is comprised of two or more interconnected Electronic Control Units (ECUs).