{"id":18245,"date":"2020-10-20T10:00:00","date_gmt":"2020-10-20T09:00:00","guid":{"rendered":"https:\/\/www.engineernewsnetwork.com\/blog\/?p=18245"},"modified":"2020-10-19T10:30:37","modified_gmt":"2020-10-19T09:30:37","slug":"using-existing-cabling-to-create-a-new-industrial-lan","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/using-existing-cabling-to-create-a-new-industrial-lan\/","title":{"rendered":"Using existing cabling to create a new industrial LAN"},"content":{"rendered":"\n

Gary Bradshaw looks at how using existing on-site cables, such as phone lines, can create a true token passing peer-to-peer, low latency, secure industrial network<\/strong><\/p>\n\n\n\n

You would not build a new railway or motorway every time you needed to travel somewhere, so why install new cable? After all, you\u2019ve probably already got spare cores in your existing multi-core cable network or, better yet, an old telephone network that\u2019s lying unused?\u00a0<\/p>\n\n\n\n

Token passing, peer-to-peer network? Check. High system redundancy? Check. Ten-kilometre transmission distance? Check. Data integrity and security? Check. Low latency? Check. These aren\u2019t features you would typically think of when you essentially repurpose existing infrastructure to create a new, high-performance industrial network. But then again, it\u2019s more profitable for most suppliers to sell you a new network.<\/p>\n\n\n\n

But that\u2019s not the way to think about it. In an age where we must consider the circular economy, when we must consider costs and reduce wasted resources, it\u2019s about elegant engineering. It\u2019s about using what you already have to deliver performance that\u2019s equal to, or even better than, a bespoke new system.<\/p>\n\n\n\n

This is exactly what we\u2019ve done at Omniflex with Conet, a true token-passing peer-to-peer LAN. Conet was developed and launched in 1981 in response to a need from plant operators who wished to bring field data back to the control room or supervisor\u2019s office in the most cost-effective way.<\/p>\n\n\n\n

The only solutions that existed at the time were very expensive and beyond the reach of smaller operators. This is why, one of the most important features of Conet is its ability to operate on low cost cabling which, in many instances, is already available as a free pair in an existing multi-core or telephone cable.<\/p>\n\n\n\n

This type of network design was inspired by the requirements of the mining industry where the nature of the job means they need a reliable network to run from the surface to the underground levels in the mine, often with power cables. These are applications where wireless networking is simply not possible, or far too unreliable given the mission-critical nature of the operation.<\/p>\n\n\n\n

This is also the case for nuclear sites, where new cable installation, soil excavation and building work must adhere to strict construction rules specific to the nuclear industry. In these sites especially, it\u2019s not just cheaper, but also operationally beneficial to make use of the existing cable infrastructure on site. <\/p>\n\n\n\n

So, what are the major uses for a system like Conet? There are two key benefits: multidrop telemetry and data acquisition. The first means that Conet can be used to transmit digital and analogue signals from one or many nodes without a central host computer. The second means that multiple host computers can connect to the network to communicate with field devices such as PLCs, RTUs and other digital devices.<\/p>\n\n\n\n

Despite this capability, at its heart Conet is still based on the ISO OSI 7-layer model, so it meets networking standards the world over. It\u2019s on top of this foundation that our engineers have built high-performance features that make Conet a resilient technology. This includes a robust token-passing protocol, allowing users to add or remove up to 127 nodes on the network without reprogramming it. <\/p>\n\n\n\n

It\u2019s also a deterministic network, making it ideal for real-time applications where low data-loss rates and low jitter are required. Here, the thru-put and access times are recorded between 0-100 milliseconds. The system also offers high data integrity and electrical noise suppression; each node is transformer isolated to block voltage fluctuations. <\/p>\n\n\n\n

This is combined with a 16-bit Cyclic Redundancy Checksum (CRC), automatic error detection and retransmission. The result? Conet can be used to securely transmit data over a distance of 10 km in noisy electrical environments with an extremely high degree of integrity.<\/p>\n\n\n\n

What\u2019s more, Conet will work regardless of your existing cabling setup because it\u2019s not reliant on any particular topology. In fact, it can work in any configuration, from bus and star networks to redundant-link and ring topologies.<\/p>\n\n\n\n

This versatility means that Conet can be used to link up any combination of supported hardware and software for data acquisition and control purposes, as well as critical event-monitoring and remote field devices, for example in utility metering applications.<\/p>\n\n\n\n

Whatever the application, using your existing cabling to build a high performance, secure, low-cost local area network is now a viable prospect for many businesses. <\/p>\n\n\n\n

Gary Bradshaw is director at network specialist Omniflex<\/a><\/strong>. <\/p>\n","protected":false},"excerpt":{"rendered":"

Gary Bradshaw looks at how using existing on-site cables, such as phone lines, can create a true token passing peer-to-peer, low latency, secure industrial network You would not build a new railway or motorway every time you needed to travel somewhere, so why install new cable? After all, you\u2019ve probably already got spare cores in …<\/p>\n","protected":false},"author":1,"featured_media":18247,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[105],"tags":[8942,8941,8940,7202],"class_list":["post-18245","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-design","tag-conet","tag-lan","tag-local-area-network","tag-omniflex"],"yoast_head":"\nUsing existing cabling to create a new industrial LAN - Engineer News Network<\/title>\n<meta name=\"description\" content=\"Gary Bradshaw looks at how using existing on-site cables, such as phone lines, can create a true token passing peer-to-peer, low latency, secure industrial network\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.engineernewsnetwork.com\/blog\/using-existing-cabling-to-create-a-new-industrial-lan\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Using existing cabling to create a new industrial LAN - 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