How many nodes can be connected to the can bus  ? 

Since the current mainstream industrial production method is large-scale assembly line production, dozens or even hundreds of devices are often arranged on one line, so this control line must have fast data transmission speed, long data transmission distance, and line anti-interference. It has strong capabilities and can connect to many node devices.

Among the numerous control buses, such as RS232, RS485, RS422, etc., CAN bus is the most suitable one. Its data transmission distance can reach up to 10KM, which is more than enough for common industrial production line control projects. Secondly, its data transmission speed can reach 1Mbps at the fastest, even at the limit data transmission position of 10KM, its baud rate can reach 5Kbps.

Since it is designed for the development of automotive electronic products, the safety requirements are very high, which makes the CAN bus itself have good anti-interference performance. Even if there is a problem with a certain node device on the bus, it can actively cut off the connection with the bus The connection will not continue to send wrong data to the bus and cause the collapse of the entire line. Finally, a CAN bus can theoretically connect up to 110 nodes, which is actually enough in general production projects.