https://rs-485.com/index.php?action=history&feed=atom&title=MelsecNetMelsecNet - Revision history2026-05-04T03:33:09ZRevision history for this page on the wikiMediaWiki 1.42.3https://rs-485.com/index.php?title=MelsecNet&diff=1608&oldid=prevRS-485: Imported from Wikipedia (overwrite)2026-05-03T13:58:37Z<p>Imported from Wikipedia (overwrite)</p>
<p><b>New page</b></p><div>{{Short description|Protocol for data delivery}}<br />
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'''MelsecNet'''<ref>{{Cite web|url=http://www.mitsubishi-automation.com/products/networks_melsecnet10h.html|title=Mitsubishi Electric Factory Automation - EMEA - Mitsubishi Electric Factory Automation}}</ref>{{failed verification|date=December 2013}} is a protocol developed and supported by [[Mitsubishi Electric]] for data delivery. MelsecNet supports 239 networks.<ref>[https://automation-networks.com/glossary/melsecnet MelsecNet - Automation Networks]</ref><br />
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MelsecNet protocol has two variants. MELSECNET/H and its predecessor MELSECNET/10 use high speed and redundant functionality to give deterministic delivery of large data volumes. Both variants can use either [[coaxial]] bus type or optical loop type for transmission. Coaxial bus type uses the [[token bus]] method with an overall distance of {{convert|500|m|yd}} but optical loop type uses the [[Token Ring]] method and can support a distance up to {{convert|30|km|mi|abbr=off}}. MELSECNET/H can support a maximum of 19,200&nbsp;bytes/frame and a maximum communication speed of 25&nbsp;Mbit/s. MELSECNET/10 supports 960&nbsp;bytes/frame and a baud rate of 10&nbsp;Mbit/s. Mitsubishi provides a manual for both the variants Melsecnet/H and MelsecNet/10.<ref>[https://dl.mitsubishielectric.com/dl/fa/document/manual/plc/sh080008/sh080008ab.pdf MELSEC Communication Protocol Reference Manual]</ref><br />
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==Features==<br />
* Easy [[personal computer]], [[Human-machine interaction|HMI]] and [[Programmable logic controller|PLC]] connection<br />
* High-speed data communications with large data volumes<br />
* Reliable and [[Robustness (computer science)|robust]] data transfers<br />
* Redundancy functions<br />
* 10/25 [[megabaud]] data transfer rates<br />
* Maximum network distance 30&nbsp;km, up to 255 segments<br />
* Simple configuration, remote programming<br />
* Floating master<br />
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==References==<br />
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==External links==<br />
* [http://www.mitsubishi-automation.com/products/networks_melsecnet10h.html Mitsubishi Europe]<br />
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{{Mitsubishi Electric}}<br />
{{Automation protocols}}<br />
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[[Category:Industrial computing]]<br />
[[Category:Serial buses]]<br />
[[Category:Industrial automation]]<br />
[[Category:Mitsubishi Electric products, services and standards]]<br />
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