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NEK IEC 61158-4-12:2007

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Merknad: Denne standarden har en ny utgave: NEK IEC 61158-4-12:2019

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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.

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  • Standard fra NEK
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  • Utgave: 1.0
  • Versjon: 1
  • Varetype: NAT
  • Products.Specs.pages
  • ICS 25.040.40
  • ICS 35.100.20
  • National Committee NEK/NK65

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