IEC EN 62439-4 Industrial Communication Networks - Network Redundancy Protocol (CRP)

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of IEC EN 62439-4 testing. IEC EN 62439-4 applies to high availability automation networks based on ISO/IEC 8802-3 (IEEE 802.3) (Ethernet) technology.

Specifies a redundancy protocol based on network replication, as opposed to a redundancy protocol built into switches; The redundancy protocol is executed on the end nodes. The transition decision is taken separately at each node. The inter-network connectivity feature allows single-connected end nodes to be connected to either network.

This International standard specifies a redundancy protocol based on network replication, which is a redundancy protocol executed at end nodes as opposed to a redundancy protocol built into switches. There is no central "redundancy manager"; instead, each node operates autonomously. The inter-network connectivity feature allows single-connected end nodes to be connected to either network.

The implementation of the redundancy protocol within DANCs allows for various topologies using switches that are not aware of the redundancy protocol and can implement another redundancy protocol such as RSTP.

This International Standard does not dictate the topology, but allows configuration of node behavior to accommodate the specifics of the particular LAN used.

EUROLAB assists manufacturers with IEC EN 62439-4 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.