Bus topology: Line with short stubs
Twisted pair line, shielded
Typical line impedance: 120 Ω (equivalent to line termination). Note: Reflections on the line ends can be avoided by bus line termination on both ends with the bus line's characteristic impedance (120 Ω).
Max. 32 nodes without repeater, with repeater up to 128 nodes
Max. stub length: 30 cm
Relation between baud rate and bus length: 5000 m at 50 kBaud; 10 m at 1000 kBaud

Line structure

The CANopen bus system is implemented as a line structure with bus terminations on both line ends. The use of shielded lines improves its electromagnetic immunity. Electromagnetic interferences can also be avoided by the use of optical fiber cables. However this variant is more expensive compared with shielded cables. Connection of optical fiber cables is via integrated or external opto-couplers.
The figure below shows an example of how to use the DOLD CANopen PLC IL 5504 MINIMASTER for distributon boards as well as further bus nodes for the CANopen field bus system.

Bus connection

Bus nodes can be looped in the bus line or connected to the bus line via a short stub (max. 30 cm). To identify bus nodes an address (node ID) is assigned to each of them. The figure below shows the basic structure of a typical CANopen node connection to a bus with DOLD-PLC IL 5504 MINIMASTER and output module IP 5503:

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多德DOLD繼電器模塊技術

多德DOLD繼電器模塊技術技術

Key data of the CANopen field bus system

Line structure

Bus connection

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成人做爰免费视频免费看_成人a级高清视频在线观看,成人a大片在线观看,成人a大片高清在线观看,成人av在线播放,一a一级片,一级黄 中国色 片,一级黄 色蝶 片,一级黄色 片生活片

多德DOLD繼電器模塊技術

多德DOLD繼電器模塊技術技術

Key data of the CANopen field bus system

Line structure

Bus connection

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收藏該商鋪

提示

成人做爰免费视频免费看_成人a级高清视频在线观看,成人a大片在线观看,成人a大片高清在线观看,成人av在线播放,一a一级片,一级黄中国色片,一级黄色蝶片,一级黄色片生活片