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RAPIEnet (Real-time Automation Protocols for Industrial Ethernet) is Korea's first Ethernet international standard for real-time data transmission. *An Ethernet-based industrial networking protocol developed in-house by LSIS guarantees 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) *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. *With 100Mbit/s/1Gbit/s transmission speed, electrical and optical media can be used together. *Supports transmission modes such as Unicast, Multicast and
Broadcast Broadcasting is the distribution of audio or video content to a dispersed audience via any electronic mass communications medium, but typically one using the electromagnetic spectrum ( radio waves), in a one-to-many model. Broadcasting began ...
. *Supports "Store & Forward”and “Cut Through” switching.


Acquired Standards


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 61158-4-21: 2010
/ref> *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)


RAPIEnet Technology


Protocol Stack Structure


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 #Transmits signal from Device 1 to Device 3. #A fault occurs between Device 2 and Device 3. #Notify the fault from Device 2 to Device 1. #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.


System Diagram Using RAPIEnet


Others


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)IEC 61784-5-17
/ref>


References

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