BS EN 61158-4-12:2008
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Industrial communication networks. Fieldbus specifications Data-link layer protocol specification. Type 12 elements
Hardcopy , PDF
English
30-05-2008
01-01-2012
| Committee |
GEL/65/3
|
| DocumentType |
Standard
|
| Pages |
0
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
IEC 61158-4-12:2007 It provides basic time-critical messaging communications between devices in an automation environment. This protocol provides communication opportunities to all participating data-link entities in a synchronously-starting cyclic manner, and in a cyclic or acyclic asynchronous manner, as requested each cycle by each of those data-link entities. Thus this protocol can be characterized as one which provides cyclic and acyclic access asynchronously but with a synchronous restart of each cycle. It includes the following significant changes with respect to the previous edition deletion of the former Type 6 fieldbus, and the placeholder for a Type 5 fieldbus data-link layer, for lack of market relevance; addition of new types of fieldbuses; division of this part into multiple parts numbered.
| Standards | Relationship |
| EN 61158-4-12:2012 | Identical |
| IEC 61158-4-12:2007 | Identical |
| EN 61158-4-12:2008 | Equivalent |
| I.S. EN 61158-4-12:2008 | Equivalent |
| UNE-EN 61158-4-12:2008 | Equivalent |
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