RS485 and CAN bus branch line problems
1. Causes of problems with RS485 and CAN bus branch lines Branch line problems are easily overlooked by users. When we are designing, many strange communication failures occur due to the large number or length of branch lines. When RS485 or CAN signals are transmitted on the bus branch lines, some echo signals will be generated, and the test signals will be deformed. Especially when the branch lines are too long or too many, the phenomenon is particularly serious. Common error branch lines are as follows. 2. Transmission distance of branch line of RS485 and CAN bus The transmission distance of RS485 and CAN bus is not only related to the twisted pair used, but also closely related to the baud rate of communication. The lower the baud rate, the longer the transmission distance. Conversely, the higher the baud rate, the shorter the transmission distance. In fact, the length of the branch line is also related to the baud rate ...

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