NEN EN IEC 61158-4-19:2014现行
Industrial Communication Networks - Fieldbus Specifications - Part 4-19: Data-Link Layer Protocol Specification - Type 19 Elements
出版：Nederlands Normalisatie Instituut
专家解读视频
Defines basic time-critical messaging communications between devices in an automation environment. Also provides communication opportunities to all participating data-link entities in a synchronously-starting cyclic manner, according to a pre-established schedule, and in a cyclic or acyclic asynchronous manner, as requested each cycle by each of those data-link entities.
Supersedes NEN EN IEC 61158-4. (04/2008)
EN 61158-4-19:2014 - Identical
IEC 61158-4-19 : 3.0 - Identical
EN 61158-4-19 : 2014 - Identical
