IEC 61158-4-12:2007
Industrial communication networks - Fielbus specifications - Part 4-12: Data-link layer protocol specification - Type 12 elements
OVERVIEW
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.
COMMENTS
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PRODUCT DETAILS
| Status | Revised |
|---|---|
| Edition | 2007 |
| No. of Pages | 293 |
| ICS Classification | 35.100.20 Data link layer 25.040.40 Industrial process measurement and control |
| Committee | TC 65/SC 65C |
| Available for Purchase | For sale in Singapore only |
| Adoption | IEC : 0 |