Chapter 7: Computer Link Function
[3] Data communication type
Message
Cyclic datadata with Token
Cyclic transfer | Cyclic transfer + Message transfer |
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Type of data communication on the
(1)Cyclic transfer
With cyclic transfer, the
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Token | Data |
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Node | Node | Node | Node | Node |
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1 | 2 | 3 | ... | 0 |
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Node 1 | Node 1 | Node 1 | Node 1 | Node 1 |
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Node 2 | Node 2 | Node 2 | Node 2 | Node 2 |
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Node 3 | Node 3 | Node 3 | Node 3 | Node 3 | Common |
Node 4 | Node 4 | Node 4 | Node 4 | Node 4 | memory |
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Node n | Node n | Node n | Node n | Node n |
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Example of a common memory and cyclic transfer