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<h2 id="features">Features</h2> <ul><li>An embedded <a href="/facts/Network_switch/CnvmhNYT">Ethernet switch</a> with two ports enables the network expansion in a daisy chain without the need for an additional external switch, easy installation and wiring reduction.<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a></li> <li>100 Mbit/s - 1 Gbit/s transmission speed, allowing electrical and optical media to be used together.<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a><a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a></li> <li>Supports transmission modes such as <a href="/facts/Unicast/PHStTfFe">Unicast</a>, <a href="/facts/Multicast/D9IspSfl">Multicast</a>, and <a href="/facts/Broadcasting/AV1f3dGy">Broadcast</a>.<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a></li> <li>Supports "<a href="/facts/Store_and_forward/zwM8Amlv">Store & Forward</a>”and “<a href="/facts/Cut-through_switching/as5hLL4W">Cut Through</a>” switching.<a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a></li></ul> <h2 id="rapienet-technology">RAPIEnet Technology</h2> <h3>Protocol Stack Structure</h3> <h3>Embedded dual port switch motion</h3> <ul><li>An embedded hardware-based switch is adopted for real-time data transmission.</li> <li>With the full-duplex communication support, each node has dual link routes in a ring topology.</li></ul> <h3>Frame Format</h3> <ul><li>RAPIEnet Ether type: 0x88FE<a class="footnote-ref" id="fnref:8" href="#fn:8"><sup>8</sup></a></li></ul> <h3>Topology</h3> <h3>Recovery System</h3> <ul><li>With an embedded switch and full-duplex, it has dual link routes and communication fault tolerance, enabling fast recovery capabilities.</li></ul> - Recovery time < 10 ms<a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a> <ol><li>Transmits signal from Device 1 to Device 3.</li> <li>A fault occurs between Device 2 and Device 3.</li> <li>Notify the fault from Device 2 to Device 1.</li> <li>Transmits signal back from Device 1 to Device 3.</li></ol> <h3>Flexible Hybrid Structure</h3> <ul><li>Fiber Optics/Copper Media</li></ul> - Copper: Low installation costs with relatively big noise. - Optics: High installation costs with low noise and relatively long wiring. <ul><li>Simple and efficient wiring is available by combining the features of two wires that have advantages and disadvantages.</li></ul> <h2 id="system-diagram-using-rapienet">System Diagram Using RAPIEnet</h2> <h2 id="acquired-standards">Acquired Standards</h2> <h3>International Standards</h3> <ul><li>IEC 61158-3-21: 2010, Industrial communication networks - Fieldbus specifications - Part 3-21: Data-link layer service definition - Type 21 elements.<a class="footnote-ref" id="fnref:10" href="#fn:10"><sup>10</sup></a></li> <li>IEC 61158-4-21: 2010, Industrial communication networks - Fieldbus specifications - Part 4-21: Data-link layer protocol specification - Type 21 elements.<a class="footnote-ref" id="fnref:11" href="#fn:11"><sup>11</sup></a></li> <li>IEC 61158-5-21: 2010, Industrial communication networks - Fieldbus specifications - Part 5-21: Application layer service definition - Type 21 elements.<a class="footnote-ref" id="fnref:12" href="#fn:12"><sup>12</sup></a></li> <li>IEC 61158-6-21: 2010, Industrial communication networks - Fieldbus specifications - Part 6-21: Application layer protocol specification - Type 21 elements.<a class="footnote-ref" id="fnref:13" href="#fn:13"><sup>13</sup></a></li> <li>IEC 61784-2: 2010, Industrial communication networks - Profiles - Part 2: Additional fieldbus profiles for real-time networks based on ISO/IEC 8802-3.<a class="footnote-ref" id="fnref:14" href="#fn:14"><sup>14</sup></a></li> <li>IEC 62439-7, Industrial communication networks - High availability automation networks - Part 7: Ring-based Redundancy Protocol (RRP) <a class="footnote-ref" id="fnref:15" href="#fn:15"><sup>15</sup></a></li></ul> <h2 id="others">Others</h2> <h3>Other international standards in process</h3> <ul><li>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)<a class="footnote-ref" id="fnref:16" href="#fn:16"><sup>16</sup></a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>IEC 61158-4-21: 2010 <a href="http://webstore.iec.ch/preview/info_iec61158-4-21%7Bed1.0%7Den.pdf" target="_blank">http://webstore.iec.ch/preview/info_iec61158-4-21%7Bed1.0%7Den.pdf</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>RAPIEnet related articles <a href="http://www.upkorea.net/news/articleView.html?idxno=19909" target="_blank">http://www.upkorea.net/news/articleView.html?idxno=19909</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>IEC 61158-4-21: 2010 <a href="http://webstore.iec.ch/preview/info_iec61158-4-21%7Bed1.0%7Den.pdf" target="_blank">http://webstore.iec.ch/preview/info_iec61158-4-21%7Bed1.0%7Den.pdf</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>IEC 61158-4-21: 2010 <a href="http://webstore.iec.ch/preview/info_iec61158-4-21%7Bed1.0%7Den.pdf" target="_blank">http://webstore.iec.ch/preview/info_iec61158-4-21%7Bed1.0%7Den.pdf</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>ISO/IEC 8802-3: 2000 <a href="http://webstore.iec.ch/preview/info_isoiec8802-3%7Bed6.0%7Den.pdf" target="_blank">http://webstore.iec.ch/preview/info_isoiec8802-3%7Bed6.0%7Den.pdf</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>IEC 61158-4-21: 2010 <a href="http://webstore.iec.ch/preview/info_iec61158-4-21%7Bed1.0%7Den.pdf" target="_blank">http://webstore.iec.ch/preview/info_iec61158-4-21%7Bed1.0%7Den.pdf</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>IEC 61158-4-21: 2010 <a href="http://webstore.iec.ch/preview/info_iec61158-4-21%7Bed1.0%7Den.pdf" target="_blank">http://webstore.iec.ch/preview/info_iec61158-4-21%7Bed1.0%7Den.pdf</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> <li id="fn:8"><p>IEEE - Ether type <a href="https://standards-oui.ieee.org/ethertype/eth.txt" target="_blank">https://standards-oui.ieee.org/ethertype/eth.txt</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li> <li id="fn:9"><p>IEC 61158-4-21: 2010 <a href="http://webstore.iec.ch/preview/info_iec61158-4-21%7Bed1.0%7Den.pdf" target="_blank">http://webstore.iec.ch/preview/info_iec61158-4-21%7Bed1.0%7Den.pdf</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li> <li id="fn:10"><p>IEC 61158-3-21: 2010 <a href="http://webstore.iec.ch/preview/info_iec61158-3-21%7Bed1.0%7Den.pdf" target="_blank">http://webstore.iec.ch/preview/info_iec61158-3-21%7Bed1.0%7Den.pdf</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></p></li> <li id="fn:11"><p>IEC 61158-4-21: 2010 <a href="http://webstore.iec.ch/preview/info_iec61158-4-21%7Bed1.0%7Den.pdf" target="_blank">http://webstore.iec.ch/preview/info_iec61158-4-21%7Bed1.0%7Den.pdf</a> <a href="#fnref:11" class="footnote-back-ref">↩</a></p></li> <li id="fn:12"><p>IEC 61158-5-21: 2010 <a href="http://webstore.iec.ch/preview/info_iec61158-5-21%7Bed1.0%7Den.pdf" target="_blank">http://webstore.iec.ch/preview/info_iec61158-5-21%7Bed1.0%7Den.pdf</a> <a href="#fnref:12" class="footnote-back-ref">↩</a></p></li> <li id="fn:13"><p>IEC 61158-6-21: 2010 <a href="http://webstore.iec.ch/preview/info_iec61158-6-21%7Bed1.0%7Den.pdf" target="_blank">http://webstore.iec.ch/preview/info_iec61158-6-21%7Bed1.0%7Den.pdf</a> <a href="#fnref:13" class="footnote-back-ref">↩</a></p></li> <li id="fn:14"><p>IEC 61784-2: 2010 <a href="http://webstore.iec.ch/preview/info_iec61784-2%7Bed2.0%7Den.pdf" target="_blank">http://webstore.iec.ch/preview/info_iec61784-2%7Bed2.0%7Den.pdf</a> <a href="#fnref:14" class="footnote-back-ref">↩</a></p></li> <li id="fn:15"><p>IEC 62439-7[permanent dead link] <a href="http://www.iec.ch/cgi-bin/restricted/getfile.pl/65C_656e_RVC.pdf?dir=65C&format=pdf&type=_RVC&file=656e.pdf" target="_blank">http://www.iec.ch/cgi-bin/restricted/getfile.pl/65C_656e_RVC.pdf?dir=65C&format=pdf&type=_RVC&file=656e.pdf</a> <a href="#fnref:15" class="footnote-back-ref">↩</a></p></li> <li id="fn:16"><p>IEC 61784-5-17[permanent dead link] <a href="http://www.iec.ch/cgi-bin/restricted/getfile.pl/65C_641ea_CD.pdf?dir=65C&format=pdf&type=_CD&file=641ea.pdf" target="_blank">http://www.iec.ch/cgi-bin/restricted/getfile.pl/65C_641ea_CD.pdf?dir=65C&format=pdf&type=_CD&file=641ea.pdf</a> <a href="#fnref:16" class="footnote-back-ref">↩</a></p></li> </ol>