RAPIEnet

RAPIEnet (Real-time Automation Protocols for Industrial Ethernet) was Korea's first Ethernet international standard for real-time data transmission. It is an Ethernet-based industrial networking protocol, developed in-house by LSIS offers real-time transmission and is registered as an international standard. (IEC 61158-3-21: 2010, IEC 61158-4-21: 2010, IEC 61158-5-21: 2010, IEC 61158-6-21: 2010, IEC 61784-2: 2010, IEC 62439-7)

Features

 * An embedded Ethernet switch with two ports enables the network expansion in a daisy chain without the need for an additional external switch, easy installation and wiring reduction.
 * 100 Mbit/s - 1 Gbit/s transmission speed, allowing electrical and optical media to be used together.
 * Supports transmission modes such as Unicast, Multicast, and Broadcast.
 * Supports "Store & Forward”and “Cut Through” switching.

Embedded dual port switch motion



 * An embedded hardware-based switch is adopted for real-time data transmission.
 * With the full-duplex communication support, each node has dual link routes in a ring topology.

Frame Format



 * RAPIEnet Ether type: 0x88FE

Topology




Recovery System

 * With an embedded switch and full-duplex, it has dual link routes and communication fault tolerance, enabling fast recovery capabilities.
 * - Recovery time < 10 ms




 * 1) Transmits signal from Device 1 to Device 3.
 * 2) A fault occurs between Device 2 and Device 3.
 * 3) Notify the fault from Device 2 to Device 1.
 * 4) Transmits signal back from Device 1 to Device 3.

Flexible Hybrid Structure



 * Fiber Optics/Copper Media
 * - Copper: Low installation costs with relatively big noise.
 * - Optics: High installation costs with low noise and relatively long wiring.


 * Simple and efficient wiring is available by combining the features of two wires that have advantages and disadvantages.

International Standards

 * IEC 61158-3-21: 2010, Industrial communication networks - Fieldbus specifications - Part 3-21: Data-link layer service definition - Type 21 elements.
 * IEC 61158-4-21: 2010, Industrial communication networks - Fieldbus specifications - Part 4-21: Data-link layer protocol specification - Type 21 elements.
 * IEC 61158-5-21: 2010, Industrial communication networks - Fieldbus specifications - Part 5-21: Application layer service definition - Type 21 elements.
 * IEC 61158-6-21: 2010, Industrial communication networks - Fieldbus specifications - Part 6-21: Application layer protocol specification - Type 21 elements.
 * IEC 61784-2: 2010, Industrial communication networks - Profiles - Part 2: Additional fieldbus profiles for real-time networks based on ISO/IEC 8802-3.
 * IEC 62439-7, Industrial communication networks - High availability automation networks - Part 7: Ring-based Redundancy Protocol (RRP)

Other international standards in process

 * IEC 61784-5-17, Industrial communication networks - Profiles - Part 5-17: Installation of fieldbuses - Installation profiles for CPF 17 (to be registered as an IEC international standard in 2012)