51305072-200 CLCN-A TDC 3000内存处理器 CAN通信协议

51305072-200 CLCN-A

Manufacturer: Honeywell
Product number :51401583-100
Product type: Enhanced process network interface board
Shipping weight :3 kg

1.2 Development history of CAN
CAN first appeared in the automobile industry in the late 1980s, and was first proposed by German BOSCH company. Consumers were demanding more features from their cars, many of which were based on electronic operations. This made communication between electronic devices more complicated and meant that more signal lines were needed. **CAN bus is proposed in order to solve the modern automobile in the huge electronic control device communication, reduce the increasing signal line. ** BOSCH designed a single network bus to which all peripheral devices could be attached.

1.3 Working Principles of CAN
The CAN communication protocol describes the information transfer mode between devices. The definition of the CAN layer is consistent with OSI. The actual communication occurs at two adjacent layers on each device, and the devices are connected only through the physical medium of the model physical layer. The specification of CAN defines the bottom two layers, namely the data link layer and the physical layer. The application layer protocol CAN be freely defined by CAN users into any scheme suitable for a specific field. That is to say, the specification of CAN specifies what kind of transmission line is used for physical connection of CAN interface, and what kind of data is transmitted according to what way, but the meaning of data transmission is defined by users themselves.