NEN EN IEC 61158-4-4:2014現行
Industrial Communication Networks - Fieldbus Specifications - Part 4-4: Data-Link Layer Protocol Specification - Type 4 Elements
出版：Nederlands Normalisatie Instituut
專家解讀視頻
Defines basic time-critical messaging communications between devices in an automation environment. It also provides a means of connecting devices through a partial mesh network, such that most failures of an interconnection between two devices can be circumvented.
Supersedes NEN EN IEC 61158-4. (04/2008)
EN 61158-4-4:2014 - Identical
EN 61158-4-4 : 2014 - Identical
IEC 61158-4-4 : 2.0B(1) - Identical
