FEATURE u Cover Story
Figure 4: Analog Devices’ condition monitoring capabilities
ADVANTAGES OF 10BASE-T1L ETHERNET CONNECTIVITY 10BASE-T1L removes the need for complex, power hungry gateways required by legacy communications to connect to the control and management network and enables a converged Ethernet network across the information technology (IT) and operating technology (OT) networks. This converged network delivers a simplified installation, easy device replacement, and faster network commissioning and configuration. This results in faster software updates with simplified root cause analysis and maintenance of field-level assets. The 10BASE- T1L physical layer combined with messaging transport protocol (MQTT) provides a messaging protocol for field assets with a low memory footprint for lower power smart sensors. MQTT provides direct connectivity of asset health insights to the cloud or a private server for advanced data analytics for predictive maintenance techniques. To communicate with a 10BASE-T1L enabled field asset, a host processor with integrated medium access control (MAC), a passive media converter, or a switch with 10BASE-T1L ports is required. Additional software, special drivers, or customised TCP/IP stacks are not required (see Figure 3). This results in clear advantages: • 10BASE-T1L is a very low power physical layer technology that can enable very low power smart sensor deployments with a high data bandwidth connectivity solution.
• A smart sensor connected with 10BASE- T1L is accessible over the network and can be remotely updated anywhere, at any time. As sensors become more complex, the probability of software updates increases. Updates are now possible within realistic periods of time via a fast Ethernet connection.
• Access to advanced Ethernet network diagnostic tools to simplify root cause analysis.
• Increased smart sensor installation flexibility via a single twisted pair cable up to 1km and beyond, with power and data on a single twisted pair cable.
• Asset health insights are now available remotely, via a web server running on the field asset, reducing the need for a maintenance technician to walk the floor to monitor an asset’s health – a significant cost saver.
12 May 2022 Irish Manufacturing
10BASE-T1L, POWER AND DATA ON TWO WIRES ADI’s portfolio of 10BASE-T1L PHY (ADIN1100) and unique MAC PHY (ADIN1110) enables lower power Ethernet connectivity on a single twisted pair cable that’s over 1,700m with only 39mW and 43mW of power consumption respectively. Single-pair Power over Ethernet (SPoE) or engineered power solutions are combined with a 10BASE-T1L PHY or MAC PHY to provide both power and data over a single twisted pair cable. A 10Mb data bandwidth communication link with significant power capability over the same cable allows smart sensors with the power and connectivity bandwidth to support new condition monitoring applications. The ADIN1110 facilitates the industry’s
lowest power system design, which simplifies adding Ethernet to sensors and reduces the burden on the processor technology, removing the need for an integrated MAC. ADI’s unique MAC PHY technology provides an SPI interface to ultra low power processors to implement lower overall system power consumption, which is of critical importance for sensor nodes. With 10BASE-T1L connectivity, asset health insights are now more accessible as the insights are available across a converged IT/OT Ethernet network. 10BASE-T1L supports hazardous area use
case applications (Intrinsically Safe Zone 0) for process automation deployments and is sometimes referred to as Ethernet-APL. 10BASE-T1L/Ethernet-APL will enable new lower power solutions to connect asset health monitoring smart sensors to the higher level data management systems. This will empower AI and advanced analytic systems to transform asset health data into actionable insights and deploy new predictive maintenance services.
ACCELERATING CONDITION MONITORING DEPLOYMENTS Complete, system-level solutions for condition monitoring applications will be key to enabling higher quality data and insights, thereby significantly improving manufacturing processes. Advances in 10BASE-T1L/Ethernet- APL, coupled with a real-time, AI-driven sensing technology such as ADI OtoSense, can
enable AI integration at all levels of customer systems. The ADI OtoSense platform senses and interprets any sound, vibration, pressure, current, or temperature to provide continuous, condition-based monitoring and on-demand diagnostics. It operates on the field asset at the edge, in real time, both online and offline. The ADI OtoSense system detects anomalies and learns from interaction with condition monitoring domain experts while creating a digital fingerprint to help identify faults in a machine so it can predict breakdowns before they cause costly downtime, damage, or catastrophic failure.
Advancements in sensing, signal processing, connectivity, mechanical packaging techniques, and artificial intelligence at the edge are enabling new condition monitoring solutions and predictive maintenance services that will unlock significant savings and productivity improvements. New system-level solutions for condition monitoring applications will include MEMS sensors for vibration and shock detection, precision converter technologies for data acquisition, and edge processing to create high quality asset health data. Low power, robust wired and wireless communication solutions provide access to the asset health data from the asset. Wireless communication solutions include
SmartMesh or Wireless HART. Wired communications solutions include RS-485 or 10BASE-T1L single pair Ethernet that provides power and data on two wires. These technologies along with high
performance power management are combined in asset monitoring solutions (such as OtoSense technology), which are complete hardware and AI monitoring solutions that can be mounted on equipment for predictive maintenance (see Figure 4).
Higher quality asset health insights and faster connectivity will extend equipment lifespans, reduce maintenance costs, and eliminate unscheduled downtime while maintaining the highest levels of manufacturing quality and safety in smart factories.
Analog Devices
www.analog.com/cbm
www.irish-manufacturing.com
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