BS EN 61158-4-3:2014 PDF

What is BS EN 61158-4-3 – Type 3 elements of data-link layer protocol about?

BS EN 61158-4-3 is part 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 layer provides basic time-critical messaging communications between devices in an automation environment. BS EN 61158-4-3 provides communication opportunities to a pre-selected “master” subset of datalink entities in a cyclic asynchronous manner, sequentially to each of those data-link entities.