Can Bus Cable Length

Solution national instruments sells can cables of 1m and 2m length.

Can bus cable length.

The bits per second bps signalling rate determines the maximum length of a cable run for a can bus. The devices that are connected by a can network are typically sensors actuators and other control devices. Cd systems provides a nice overview. Cable length 40000 kbit s 1 m bitrate in kbit s bitrate given in kbit s as well.

Though the iso11898 standard specifies a maximum bus length of 40m and maximum stub length of 0 3m at 1mbps. Maximum cable length at a speed of 1 mbit s a maximum cable length of about 40 meters 130 ft can be used. Bus length l cable stub length l node distance d 1 mbit sec. One output line is optional and ordinarily not use.

There is one rule of thumb. Garmin carlisle can24tst120 can bus cable garmin recommends the use of p n can24tst120 cit cable to interface the can bus on g3x g5 gmu11 gad29b gfc500 gmc507 gsa28 etc. You may need to create your own cable or purchase from a third party. As the data rate increases the maximum bus length drops rapidly.

Can bus maximum length. The improved can fd extends the length of the data section to up to 64 bytes per frame. Using this results in 40m for 1mbit s or 320m for 125kbit s. 1 x 2 x 0 50mm can bus cable violet pur.

A low can bus data rate for example 10 kbps will allow the bus to operate at a long distance of 6700 metres between the two ends of the bus. If you need longer cables for your application confirm with the ni product documentation for your device the xnet manual and or the sae j2411 or iso 11898 cia ds 102 and devicenet specifications. In this formula a typical transceiver propagation of 25ns and a typical cable propagation of 5 ns m is used for calculation. The message is transmitted serially onto the bus using a non return to zero nrz format and may be received by all nodes.

40 meters 131 feet 0 3 meters 1 foot 40 meters 131 2 feet. In other words the cable length is restricted by the speed of light.