Ethernet in automation: Industrial networking entering a new phase
Industrial Ethernet is becoming the foundation of modern automation. From connected production lines and robotics to machine vision, edge computing and AI-driven systems, Ethernet is the communication backbone that enables industrial organizations to collect data, make decisions faster, and increase operational efficiency.
At the same time, the demands placed on industrial networks have never been greater. Industrial Ethernet is no longer just about connecting devices. It has become a strategic enabler of digital transformation in the era of “Industry 4.0” and intelligent manufacturing.
From connectivity to operational intelligence
Over the past decade, industrial Ethernet has evolved dramatically. What began as a replacement for proprietary industrial communication systems has become the foundation for smart factories, industrial IoT, predictive maintenance, and real-time analytics.
Today’s industrial networks no longer connect only controllers and sensors. They enable communication across machines, robotics systems, vision systems, edge computing platforms, cloud applications, and enterprise systems. Consequently, as organizations pursue greater automation and insight, communication infrastructure has become mission critical to business success.
Figure 1 The role of industrial Ethernet continues to expand as manufacturers seek greater efficiency, higher productivity, and more operational intelligence. Source: Microchip
Five forces reshaping industrial Ethernet
- Deterministic networking is becoming essential
Modern industrial applications increasingly depend on precise timing and predictable communication. Robotics, motion control systems, multi-axis machinery, and synchronized production equipment all require predictable or deterministic network behavior to ensure repeatable performance.
As networks grow in size and complexity, maintaining accurate synchronization across distributed systems becomes more significant. So, industrial designers are increasingly looking for networking solutions capable of supporting precise timing and low latency while maintaining interoperability across diverse systems.
- AI and machine vision are driving bandwidth requirements
Machine vision, AI-enabled inspection, and real-time analytics are introducing new connectivity demands across industrial environments. High-resolution cameras, intelligent edge devices, and data-intensive applications generate substantially more traffic than traditional industrial control systems.
Figure 2 AI-enabled inspection and real-time analytics are introducing new connectivity demands across industrial environments. Source: Microchip
As these applications become more prevalent, network infrastructures must support higher throughput while continuing to meet real-time communication requirements. The challenge is no longer simply moving data. It’s moving more data faster and more reliably than ever before.
- Legacy infrastructure must coexist with new technologies
Most industrial facilities cannot replace their entire network infrastructure overnight. As a result, engineers are frequently tasked with integrating next-generation communication technologies while maintaining compatibility with existing equipment and architectures.
The coexistence of legacy systems and modern networking technologies introduces complexity, interoperability concerns, and deployment risk. Many organizations are looking for migration strategies that enable modernization without disrupting operational continuity.
- Reliability is a business requirement
Industrial Ethernet systems operate in some of the world’s most demanding environments. Exposure to temperature extremes, electrical noise, vibration, and continuous operation can place significant stress on communication infrastructure.
Network disruptions are no longer viewed as simple technical issues. Communication failures can impact production, reduce productivity, and contribute to costly downtime. As automation systems become increasingly connected, reliability is becoming a critical operational requirement rather than simply a design consideration.
- Security is now part of the communication challenge
The convergence of information technology (IT) and operational technology (OT) is increasing connectivity throughout industrial environments. While this creates opportunities for greater visibility and efficiency, it also expands potential security exposure.
Industrial organizations must now balance connectivity, accessibility, and operational efficiency with the need to protect critical systems and maintain operational continuity. Secure and resilient communications are no longer optional. They are fundamental requirements of modern industrial infrastructure.
Figure 3 Secure and resilient communications are no longer optional. Source: Microchip
The hidden challenge: Complexity
While each of these trends presents unique technical requirements, many industrial organizations are facing a larger challenge: complexity. Industrial networks today must support more devices, more data, more protocols, more security considerations, and tighter timing requirements than ever before. Engineers are expected to integrate legacy and modern systems, support future networking requirements, shorten development cycles, and reduce deployment risk, often with limited resources and aggressive project timelines.
So, industrial Ethernet now faces the combined challenge of supporting greater bandwidth, deterministic performance, legacy-system integration, reliability and security; all while managing increasing network complexity.
Figure 4 Complexity is intertwined with industrial Ethernet challenges such as greater bandwidth, deterministic performance, legacy-system integration, reliability, and security. Source: Microchip
As a result, network complexity is emerging as the primary barrier to faster innovation, system scalability, and operational agility. This challenge is increasingly visible as manufacturers expand automation initiatives and invest in smart factory infrastructure.
What industrial designers need next
As industrial networking continues to evolve, the criteria for selecting Ethernet solutions are changing. Industrial designers need technologies that help them:
- Simplify network design and integration
- Accelerate development and deployment cycles
- Enable deterministic real-time communications
- Support scalable architectures from edge devices to factory infrastructure
- Deliver reliable operation in harsh industrial environments
- Maintain secure and resilient communications
- Prepare for future networking requirements and evolving standards
The focus is shifting from individual components to complete connectivity platforms that help reduce engineering complexity while supporting long-term business and technology objectives.
The next generation of industrial automation will place even greater demands on communication infrastructure. Deterministic networking, intelligent machines, AI-enabled systems, advanced machine vision, and increasingly connected operations will continue to drive new requirements across industrial environments.
Success will depend not only on network performance, but also on the ability to simplify deployment, scale architectures efficiently, and maintain reliable, secure operation throughout the system lifecycle. Organizations that reduce communication complexity will be better positioned to accelerate innovation and adapt to future industrial requirements.
Nervous system of modern automation
Industrial Ethernet is becoming the nervous system of modern automation. Yet as industrial systems become more capable, connected and intelligent, the underlying communication infrastructure is becoming increasingly challenging.
The challenge facing industrial organizations is no longer whether to connect systems. The challenge is how to do so efficiently, reliably, and securely while meeting the growing demands of modern automation.
The future of industrial Ethernet will belong to solutions that help simplify integration, accelerate development, improve reliability, and support scalable industrial networking architectures. As the industry enters its next chapter, reducing complexity may become one of the most important competitive advantages an organization can achieve.
Matthias Karcher is associate director of Microchip Technology’s networking and connectivity business unit.
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