| Fieldbus is a kind of computer network in automation field and it has been one of the hotspots of automation fields' technique development. Fieldbus connects the field equipments with a bus and makes it a network through which information can be exchanged mutually. So fieldbus is a system which can transmit digital signals in two directions among many nodes.CAN (Controller Area Network) is also one of fieldbus that supports the distributed control and time control.It has become an international standard about fieldbus due to its high capability and reliability. This paper sets forth detailedly CAN technology after introducing concisely Fieldbus technology. In the end, the design of a computer temperature control system based on CAN bus is introduced. |
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