The high-level protocols of the CAN bus mainly include the following:
1. CANopen:
It is a communication protocol based on CAN bus, which is widely used in industrial automation, robot control, power system and other fields.
2. DeviceNet:
It is an industrial network protocol based on CAN bus, mainly used for communication and control between industrial automation equipment.
3. J1939:
It is a vehicle communication protocol based on CAN bus, mainly used for communication and control of commercial vehicles and heavy machinery and equipment.
![212gcan](https://gcanbus.com/wp-content/uploads/2022/09/212gcan.webp)
![Programmable Smart Gateway series (3)](https://gcanbus.com/wp-content/uploads/2021/12/Programmable-Smart-Gateway-series-3.jpg)
4. NMEA2000:
It is a communication protocol for ships and marine equipment based on CAN bus, mainly used for data exchange and control between ships and marine equipment.
5. CANaerospace:
It is a communication protocol for avionics equipment based on CAN bus, mainly used for data exchange and control between aircraft and avionics equipment.
These high-level protocols are developed and expanded on the basis of CAN bus, and appropriate protocols can be selected according to different application scenarios.
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