What is BS EN 61158-4-3:2018?

The BS EN 61158-4-3:2018 is a technical standard that specifies the communication profiles, data link layer protocol, and application layer protocol for deterministic Ethernet-based fieldbus networks. This standard falls under the IEC 61158 series, which defines the overall architecture and protocols for industrial communication systems.

Communication Profiles

Within the BS EN 61158-4-3:2018 standard, several communication profiles are defined. These profiles specify the network configuration, electrical characteristics, transmission medium, and data transfer rates to ensure interoperability between different devices and systems. Some common communication profiles include PROFINET, EtherCAT, and Ethernet/IP.

Data Link Layer Protocol

The data link layer protocol outlined in BS EN 61158-4-3:2018 provides reliable communication between devices within the fieldbus network. It ensures error detection, message framing, and flow control to guarantee efficient and accurate data transmission. The protocol also supports various topologies like bus, star, or ring, allowing flexibility in network design.

Application Layer Protocol

The application layer protocol specified in BS EN 61158-4-3:2018 determines the format and structure of the data exchanged between devices. It defines the rules for addressing, data representation, and the interpretation of specific commands or messages. By standardizing the application layer protocol, seamless integration and communication between devices from different manufacturers become possible.