The Advantages of Single Pair Ethernet in Industrial Automation

Do you want to know how Single Pair Ethernet (SPE) can revolutionize the world of Industrial Automation? In this article, we will explore the top 10 benefits of using Single Pair Ethernet, or SPE, in industrial settings. From simplifying network design to reducing costs and improving performance, SPE has the potential to transform the way we connect and communicate in industrial environments.

The Advantages of Single Pair Ethernet in Industrial Automation
The Advantages of Single Pair Ethernet in Industrial Automation

Simplified Network Design with SPE

One significant advantage of Single Pair Ethernet is its ability to connect devices using a single pair of wires. Whether you’re using Traditional Ethernet, Industrial Ethernet, or SPE, they all function using the same types of Ethernet communication. This means that you can establish a Profinet communication network using any of these protocols, simplifying the overall network design.

Streamlined Cabling Infrastructure

Single Pair Ethernet networks require only a single cable for both data and power transmission. This eliminates the need for separate cables for power and communication, making the cabling infrastructure more straightforward and less bulky. By using a common infrastructure for all network devices and cables, you’ll need to stock fewer parts, and there will be a shorter learning curve for maintenance personnel.

Single Pair Ethernet
Image: A representation of a Single Pair Ethernet cable.

Space Savings and Ease of Installation

With SPE, power and communication signals can be carried over the same cable to each sensor, reducing the number of cables that need to be installed. This translates into fewer conduits or cable trays, simplifying the installation process and saving valuable space. Additionally, only a single control panel is required to supply power and establish communication, further streamlining the installation process.

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Versatile Network Topologies

Single Pair Ethernet networks can be constructed using various topologies, including point-to-point and multi-drop configurations. Point-to-point connections involve connecting an SPE switch to a device using a dedicated cable. In multi-drop configurations, up to eight separate devices can be connected in a daisy-chain fashion, significantly reducing the number of long cable runs back to a central control cabinet.

Interconnectivity and Standardization

Standards such as IEC 63171-6 and IEC 63171-7 have been developed for SPE to ensure interconnectivity between devices. Automation suppliers like TE Connectivity are engineering and manufacturing cables and connectors that support SPE networks. Power and data are delivered over a single cable using familiar 4-pin M8 connectors or 6-pin M12 connectors, simplifying the connection process and eliminating the need for additional components.

Cost Savings with SPE

SPE offers significant cost savings in industrial automation. The simplified network design, streamlined cabling infrastructure, and ease of installation result in reduced material and labor costs. The lighter and less bulky installations also reduce the load on cable trays, potentially saving on support structures. Additionally, the use of M8 and M12 connectors eliminates the need for individual cable terminations, further reducing labor expenses.

SPE Network
Image: A representation of a Single Pair Ethernet network.

Extended Distance and Faster Communication

Single Pair Ethernet can reach longer distances than traditional Ethernet without requiring additional repeaters or switches. The 10-BASE-T1L version of SPE allows cable lengths of up to 1000 meters at a data communication rate of 10 Megabits per second. The 1000-BASE-T1 version allows cable lengths of up to 40 meters at a data communication rate of 1 Gigabit per second. This makes SPE suitable for devices that require high-speed communication, such as robots.

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Power over Data Line (PoDL)

With Single Pair Ethernet, power and data can be transmitted over the same cable to field devices. The 10-BASE-T1L version of SPE can transmit up to 8 amps of power over a compliant SPE cable. This configuration, known as Power over Data Line (PoDL), simplifies the power distribution system and reduces the need for separate power cables.

Enhanced Resistance to Interference

SPE offers better resistance to Electromagnetic Interference (EMI) compared to traditional Ethernet. The shielded nature of SPE cabling enhances its EMI resistive properties, making it more suitable for industrial environments with numerous electronic devices. SPE is also designed to withstand harsh conditions, including resistance to EMI, heat, and moisture, making it highly reliable and durable.

Future-Proofing Industrial Environments

As the Industrial Internet of Things (IIoT) and Industry 4.0 continue to expand, the demand for more interconnected devices and data-driven decision-making grows. Single Pair Ethernet’s simplicity, scalability, and performance make it an ideal choice for connecting devices in this evolving landscape. Its compliance with comprehensive standards ensures that devices from different manufacturers can seamlessly work together.

Q: Where can I learn more about Single Pair Ethernet?
A: If you want to dive deeper into Single Pair Ethernet, you can check out the ‘Single-Pair Ethernet Fundamentals’ course on Techal. RealPars Pro Members also have direct access to this course.

Q: What are the advantages of using SPE in industrial automation?
A: Some of the advantages of Single Pair Ethernet in industrial automation include simplified network design, streamlined cabling infrastructure, cost savings, extended distance communication, enhanced resistance to interference, and future-proofing industrial environments.

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Single Pair Ethernet holds great promise for industrial automation. Its simplicity, scalability, and performance make it an ideal choice for connecting devices in industrial settings. With reduced costs, simplified installation, and improved communication capabilities, SPE is set to transform the way we connect and communicate in the industrial world. Embrace this technology to stay ahead in the rapidly evolving landscape of technology in industrial automation.

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The Advantages of Single Pair Ethernet in Industrial Automation