BS EN 61158-4-16:2008

What is BS EN 61158-4-16 -  Data-link layer protocol specification about?

BS EN 61158 is a European standard that discusses the Fieldbus specifications for industrial communication networks. BS EN 61158-4-16 provides a data-link layer that outlines time-critical messaging communications between devices in an automation environment.

This protocol provides communication opportunities to all participating data-link entities:

• In a synchronously starting cyclic manner, according to a pre-established schedule
• In a cyclic or acyclic asynchronous manner, as requested each cycle by each of those data-link entities.

The protocol described in BS EN 61158-4-16 can be characterised as one which provides cyclic and acyclic access asynchronously but with a synchronous restart of each cycle.

BS EN 61158-4-16 outlines:

• 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 data link service provider
• The structure of the Fieldbus DLPDUs used for the transfer of data and control information by the protocol of this standard, and their representation as physical interface data units.

BS EN 61158-4-16 also specifies conformance requirements for systems implementing these procedures.

BS EN 61158-4-16 applies 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.

Note: BS EN 61158-4-16 does not contain tests to demonstrate compliance with such requirements.

Who is BS EN 61158-4-16 -  Data-link layer protocol specification for?

BS EN 61158-4-16 on the data-link layer protocol specification is useful for:

• Personnel involved in managing Data-link layer protocols
• Test centres
• Regulatory authorities

Why should you use BS EN 61158-4-16 -  Data-link layer protocol specification?

The data-link protocol provides the data-link service by making use of the services available from the physical layer. A set of rules has been provided for communication expressed in terms of the procedures to be carried out by peer data-link entities (DLEs) at the time of communication. These rules for communication provide a sound basis for development to serve a variety of purposes.

BS EN 61158-4-16 assists you with data link (DL) protocol overview, basic data-link-protocol-data-unit (DLPDU) structures, network management methods and data transmission methods. BS EN 61158-4-16 also guides on data-link (DL) management, error handling, and monitoring of data-link layer protocol.

With obedience and compliance to BS EN 61158-4-16, you can improve the time-critical messaging communications between devices in an automation environment. In addition, provides a simple multi-attribute means of summarising an implementation’s capabilities.