Feature: SPE 6-part series
Article 6: Solutions and technologies for single pair ethernet applications
By Ruud Van Den Brink, product manager industrial communications and Manuel Ruter, senior principal engineer
What is available now and what comes next Single Pair Ethernet (SPE) communication protocols for connected devices can offer significant benefits in industrial applications, but SPE may not be the solution for every operation. While SPE can offer additional functions and benefits, it is important for facilities to understand their needs, limitations and goals when considering SPE technology and determining whether it can offer a return on investment (ROI) for their application. In the final article of our six- part SPE series, learn more about available solutions and components.
SPE technologies and options There are many different components and solutions for different applications and use cases, so choosing the right technologies is key to success. For example, a hybrid power scenario or multidrop facility requires vastly different solutions than other environments do. It’s also important to take an inventory of the existing equipment in a facility because some can be reused when installing SPE technology. When choosing among the many SPE-compatible
components and solutions available, there are some factors to be aware of regarding the latest technologies and innovations. • Miniaturisation: When choosing components and connectors for SPE, miniaturised solutions can provide
significant space savings in facilities where there are space limitations, but there must be a balance of size and ruggedness for industrial applications.
• IEC 63171-7 standard: The new IEC 63171-7 international electrotechnical standard is helping SPE interconnect technology gain faster acceptance in the industry. Under the new standard, SPE-M12 hybrid interfaces will support the reliability, durability and safety required in harsh industrial environments. The technology will allow higher levels of power to be transmitted in production plants and is a promising option for robotic systems as well as servo and three-phase drives. Standardising on the M12 format enables manufacturers to work with multiple suppliers, providing for competitive pricing and a decreased risk of production downtime.
• M12 format: The IEC 63171-7 standard specifies hybrid interfaces with SPE and power contacts in the M12 format, both with screw locking and push-pull quick locking. The standard applies to shielded, free and fixed circular connectors for power and data transmission. SPE-M12 hybrid interfaces fit almost seamlessly into existing Ethernet infrastructures and help to enable simple plug-and-play connections for operations that want to implement SPE technology. Because the M12 connector defined for the hybrid concept is already in wide use throughout the
38 April 2025
www.electronicsworld.co.uk
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