IEC 61158-4-2:2023 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: - as a guide for implementers and designers; - for use in the testing and procurement of equipment; - as part of an agreement for the admittance of systems into the open systems environment; - as a refinement to the understanding of time-critical communications within OSI.
EN IEC 61158-4-2:2023由欧洲电工标准化委员会 IX-CENELEC 发布于 2023-04-14,并于 2023-07-13 (7) 实施,于 2026-04-13 (7) 废止。
EN IEC 61158-4-2:2023在国际标准分类中归属于: 25.040.40 工业过程的测量和控制。
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