What is BS EN 61158-2 - Physical layer specification and service definition about?
BS EN 61158-2 is the second part of the multiple series that specifies the requirements for Fieldbus component parts. BS EN 61158-2 also specifies the media and network configuration requirements necessary to ensure agreed levels of:
- Data integrity before data-link layer error checking
- Interoperability between devices at the physical layer
BS EN 61158-2 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.
Who is BS EN 61158-2 - Physical layer specification and service definition for?
BS EN 61158-2 on physical layer specification and service is useful for:
- Small scale automation industries
- Large scale automation industries
- Network controlling companies
- Transport companies
Why should you use BS EN 61158-2 - Physical layer specification and service definition?
The Fieldbus physical layer conforms to layer 1 of the OSI 7-layer model as defined by ISO 7498 with the exception that, for some types, frame delimiters are in the physical layer while for other types they are in the data-link layer.
BS EN 61158-2 assists you with the physical layer receives data units from the data-link Layer, encodes them by adding communications framing information and transmits the resulting physical signals to the transmission medium at one node. Signals are then received at one or more other nodes (s), decoded by removing the communications framing information before the data units are passed to the data-link layer of the receiving device.
Overall, BS EN 61158-2 provides a set of rules for communication expressed in terms of the procedures to be carried out by peer Ph-entities at the time of communication.