
Industrial Communication Networks - Fieldbus Specifications - Part 4-4: Data-Link Layer Protocol Specification - Type 4 Elements
出版:Danish Standards

专家解读视频
Defines basic time-critical messaging communications between devices in an automation environment. 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.
EN 61158-4-4:2014 - Identical
EN 61158-4-4 : 2014 - Identical
IEC 61158-4-4 : 2.0B(1) - Identical