BS EN 61158-4-3:2012
Superseded
View Superseded by
Industrial communication networks. Fieldbus specifications Data-link layer protocol specification. Type 3 elements
Hardcopy , PDF
English
06-30-2012
11-30-2014
| Committee |
GEL/65/3
|
| DocumentType |
Standard
|
| Pages |
174
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
The data-link layer provides basic time-critical messaging communications between devices in an automation environment.
This protocol provides communication opportunities to a pre-selected “master” subset of data-link entities in a cyclic asynchronous manner, sequentially to each of those data-link entities. Other data-link entities communicate only as permitted and delegated by those master data-link entities.
For a given master, its communications with other data-link entities can be cyclic, or acyclic with prioritized access, or a combination of the two.
This protocol provides a means of sharing the available communication resources in a fair manner. There are provisions for time synchronization and for isochronous operation.
| Standards | Relationship |
| I.S. EN 61158-4-3:2012 | Equivalent |
| EN 61158-4-3:2012 | Identical |
| IEC 61158-4-3:2010 | Identical |
| EN 61158-4-3:2012 | Equivalent |
| UNE-EN 61158-4-3:2012 | Equivalent |
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