Figure 2 - Seamless integration of high speed ethernet


Both devices support a low voltage supply mode suitable for intrinsically safe environments including Zone 0 and Zone 1 as classified by the ATEX directive.


Migration to 10BASE-T1L is possible without significant changes. The use of single-pair Ethernet (SPE) cables offers an economical, smaller and lighter alternative to CATx cables and can generally re-use any SPE infrastructure that might already exist. To further support transition, Analog Devices offer software configurable input/output devices such as the AD74115H as a bridge solution, allowing the paralleling of legacy field devices alongside their ethernet-connected counterparts to make the move to smarter automation simpler – see figure 2.


The edge-to-cloud network capability offered by 10BASE-T1L and the ADI Chronous portfolio is an essential tool for those looking to be part of the latest step in industrial control and automation. This improved connectivity also paves the way for the latest advancement of low power artificial intelligence (AI) microcontrollers, such as the MAX78000, to make AI at the edge a reality. The access to data, remote processing capability, and subsequent insights provided are a key part of the acceleration described by Industry 4.0. Whether for cost saving, power optimization or any number of reasons, access to this previously elusive information is a key factor driving the innovative front today.


Wireles networks


In scenarios where a pre-existing cable infrastructure is available, IO-Link and 10BASE-T1L are fast-to-market solutions reducing the time and cost demands of retrofitting. However, not every scenario will have this luxury. Whether through a time restriction where line-stop isn’t an option, physical limitation where AC supply and ethernet connectivity aren’t viable, or even when traditional wireless solutions are not possible due to factory layout; there are a plethora of reasons that might rule out standard wired and wireless solutions – a mesh network may therefore offer the way forward.


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With a focus on reliability and security over their consumer counterparts which prioritise cost, industrial applications require a level of redundancy to maintain the stasis of the control system which in turn, both enables yield optimization and ensures worker safety. Both iterations of Analog Devices SmartMesh solution, SmartMesh IP and SmartMesh WirelessHART, offer twofold redundancy; the first in the form of spatial redundancy where every node, or mote, can communicate with at least two others; the second being through channel redundancy where the network software manager is able to diagnose and channel hop to the optimal frequency. Another concern for wireless applications is security within the wireless sensor network (WSN), specifically confidentiality, integrity, and authenticity. SmartMesh utilizes end-to-end encryption and configurable levels of device authentication to name a few security features, which cannot be said for all wireless networks.


SmartMesh IP enables business-critical applications to become part of the wider industrial Internet of Things (IoT). Where some industrial sensors and instruments have been previously kept on isolated networks or manually monitored, Analog Devices SmartMesh solutions provide real-time access to data in harsh environments allowing for instantaneous trend analysis and continuous health monitoring of equipment. With solutions that offer better than 99.99% reliability in tough RF environments in a low power device that can be wired, battery powered or harvest local energy to run perpetually, these self-repairing networks require very little maintenance once deployed.


For evaluation, Analog Devices offer their SmartMesh IP Starter Kit consisting of 5 motes and a network manager pre-loaded with the latest IP networking software. With easy-to-probe signal pins and an API for software development, this kit is a great way to assess the value


that SmartMesh can bring to your application. Analog Devices also provide a SmartMesh power and performance calculator to support the design of your own unique network.


Conclusion


The demand for efficient and effective control systems in industrial automation will grow, driven by the need for flexibility, interoperability, and data connectivity. As a result, the road to Industry 4.0 will not be the same for any two applications. Analog Devices’ extensive portfolio is well positioned to meet the evolving needs of every customer, providing wired or wireless solutions to unlock endless possibilities for data analysis and insights. Consequently, modern systems are able to improve system reliability, reduce maintenance costs, and boost overall productivity; further pushing the boundaries of innovation in this fourth industrial revolution.


Design support


Anglia offers support for customer designs with free evaluation kits, demonstration boards and samples of Analog Devices products via the EZYsample service which is available to all registered Anglia Live account customers. Anglia’s engineering team are also on hand to support designers, we can offer advice and support at component and system level. This expertise is available to assist customers with all aspects of their product design, providing hands on support and access to additional comprehensive Analog Devices resources which includes technical application notes and reference designs to help designers select the right product for their application.


Visit www.anglia-live.com to see the full range of Analog Devices products available from Anglia.


Components in Electronics September 2023 11


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