The Development Of Intelligent Node Based On DeviceNet FieldBus

Along with technical and so on control, computer, correspondence, network development, the exchange of information communication's domain is covering rapidly from the factory field apparatus to the control, management each level. Information technology's swift development, has caused the automated system structure transformation. Fieldbus complies with the new technology which this form develops. The field bus is now one of automated domain technological development hot spots, is honored as the automated domain the computer local area network. Its appearance, symbolizes that the industrial control area of technology another new times' start, and will have the material effect to this domain's development.The DeviceNet is one kind of open style fieldbus. It is based on the CAN technology equipment level communication network, has the low cost, redundant reliable, timely as well as the equipment level from the diagnosis characteristic, has provided a performance remarkable solution for the industry first floor equipment interconnection. Paper primary coverage: Fieldbus's communication protocol model and several kind of famous fieldbus's introduction; DeviceNet fieldbus's structure and application layer agreement; The DeviceNet network tests the platform the build and empirical datum gathering; Hardware circuit design, development and corresponding software development; Through and gathers the data to the DeviceNet agreement's understanding the analysis, completes the DeviceNet interface software and hardware's development.