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184020 - ČSN EN IEC 61158-4-28 - Průmyslové komunikační sítě - Specifikace sběrnice pole - Část 4-28: Specifikace protokolu datového spoje - Prvky typu 28 | ||
| Název : 184020 - ČSN EN IEC 61158-4-28 - Průmyslové komunikační sítě - Specifikace sběrnice pole - Část 4-28: Specifikace protokolu datového spoje - Prvky typu 28
Označení normy : ČSN EN IEC 61158-4-28 Katalogové číslo : 517384 Třídící znak : 184020 Účinnost : 2023-10-01 Věstník : 2023.09 Strany : 68 Převzata :vyhlášením ve Věstníku - v angličtině | ||
| Cena : | 564.00 Kč (DPH= 0%), s DPH= 564.00 Kč | |
| ANOTACE ČSN EN IEC 61158-4-28 This part of IEC 61158 is one of a series produced to facilitate the interconnection of automation system components. It is related to other standards in the set as defined by the "three-layer" fieldbus reference model described in IEC 61158-1. The data-link protocol provides the data-link service by making use of the services available from the physical layer. The primary aim of this document is to provide a set of rules for communication expressed in terms of the procedures to be carried out by peer data-link entities (DLEs) at the time of communication. These rules for communication are intended to provide a sound basis for development in order to serve a variety of purposes: a) as a guide for implementers and designers; b) for use in the testing and procurement of equipment; c) as part of an agreement for the admittance of systems into the open systems environment; d) as a refinement to the understanding of time-critical communications within OSI. | ||