CAN bus was originally designed by German BOSCH for monitoring and control in the automotive industry. It has been applied to railways, transportation, national defense, engineering, industrial machinery, textiles, agricultural machinery, numerical control, medical equipment robots, buildings, security, etc.
So in practical applications, when using CAN communication protocol for communication, irregular wiring will cause a significant decrease in communication reliability, stability and accuracy of data transmission, and sometimes even lead to some unexpected phenomena. Therefore, it is recommended to strictly follow the CAN network wiring specifications for engineering construction to reduce the later maintenance workload.
During the wiring process, the contacts should be reduced as much as possible, so that the contacts are stable and not moving, and at the same time, they should be bandaged to avoid oxidation.