What is BS EN IEC 61158-4-2 - Data-link layer 2 protocol about?
BS EN IEC 61158-4-2 is part of the BS EN IEC 61158 series that has been created to facilitate the interconnection of automation system components. BS EN IEC 61158-4-2 contains the protocol which provides communication opportunities to all participating data-link entities, sequentially, and in a cyclic synchronous manner. BS EN IEC 61158-4-2 also provides foreground scheduled access for time-critical activities together with background unscheduled access for less critical activities.
BS EN IEC 61158-4-2 specifies procedures for the timely transfer of data, and control information from one data-link user entity to a peer user entity, and among the data-link entities forming the distributed datalink service provider.
Who is BS EN IEC 61158-4-2 - Data-link layer 2 protocol for?
BS EN IEC 61158-4-2 for data-link layer protocol specification can be relevant for:
- The IT industry / Software programmers
- Internet engineering task forces
- The automation industry
- Implementors and designers of industrial automation systems
- Networking sectors
Why should you use BS EN IEC 61158-4-2 - Data-link layer 2 protocol?
BS EN IEC 61158-4-2 is one 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 protocol mentioned in BS EN IEC 61158-4-2 help you to maintain clock synchronization across an extended link with a precision better than 10 μs. BS EN IEC 61158-4-2 also allows you to optimize each access opportunity by improving data transfer efficiency for datalink entities that actively source multiple streams of data.
BS EN IEC 61158-4-2 describes the procedures which are applicable to instances of communication between systems that support time-critical communications services within the data-link layer of the OSI or fieldbus reference models, and which require the ability to interconnect in an open systems interconnection environment.
These profiles also provide a simple multi-attribute means of summarizing the capabilities of implementation and its applicability to various time-critical communications needs.
What’s changed since the last update?
BS EN IEC 61158-4-2:2019 supersedes BS EN 61158-4-2:2014, which will be withdrawn. This edition includes the following significant technical changes with respect to the previous edition:
- Clarifications of ControlNet object in 7.2
- Extensions and clarifications of TCP/IP interface object in 7.5
- Extensions and clarifications of Ethernet Link object in 7.6
- Clarifications of DeviceNet object in 7.7
- Extensions and clarifications of CCO object in 7.8