IEC 61158-4-4 Ed. 1.0被替代
Industrial communication networks - Fieldbus specifications Part 4-4: Data-link layer protocol specification - Type 4 elements
出版：International Electrotechnical Committee
專家解讀視頻
It basic time-critical messaging communications between devices in an automation environment. This protocol provides a means of connecting devices through a partial mesh network, such that most failures of an interconnection between two devices can be circumvented. In common practice the devices are interconnected in a non-redundant hierarchical manner reflecting application needs. It includes the following significant changes with respect to the previous edition deletion of the former Type 6 fieldbus, and the placeholder for a Type 5 fieldbus data-link layer, for lack of market relevance; addition of new types of fieldbuses; division of this part into multiple parts numbered.
BS EN 61158-4-4:2008 - Identical
I.S. EN 61158-4-4:2008 - Identical
DIN EN 61158-4-4 (2008-09) - Identical
NEN EN IEC 61158-4-4:2008 - Identical
OVE/ONORM EN 61158-4-4:2008 - Identical
PN EN 61158-4-4:2008 - Identical
