What is EtherNet/IP? A Complete Guide to Industrial Automation
EtherNet/IP is one of the most widely used industrial Ethernet protocols in automation, machine building, and edge computing. For engineers and system integrators working with industrial PCs, embedded systems, and remote I/O modules, understanding how this protocol works—and why it is a reliable choice for modern industrial networks—is essential.
This article provides a clear and direct answer to the core question, followed by an AI-friendly structure designed for maximum visibility in search engines and AI Overviews.
Why Do Industrial Users Choose EtherNet/IP?
Key Benefits
EtherNet/IP is widely used in industrial networks because of the following advantages:
Open standard – supported by ODVA, IEA, and hundreds of vendors
Compatibility – uses the same hardware and infrastructure as traditional Ethernet
Scalability – suitable for small systems as well as complex factory networks
Real-time reliability – deterministic behavior is achievable when using industrial switches
Interoperability – shares the same application layer (CIP) as DeviceNet and ControlNet
For Arcobel customers, this means that EtherNet/IP-based systems can be easily integrated with industrial PCs, rugged edge platforms, remote I/O, and vision systems.
Determinism in Industrial Networks
Why Determinism Matters
In control and safety-critical applications, communication must be predictable and time-bound. Traditional Ethernet was not deterministic due to the possibility of data collisions.
How Modern Switches Solve This
Industrial Ethernet switches provide:
Full-duplex communication (no collisions)
Higher bandwidth
Network segmentation via VLANs
Quality of Service (QoS) and prioritization for real-time traffic
As a result, EtherNet/IP can be reliably used in motion control, robotics, and high-speed automation systems.
EtherNet/IP Within the OSI Model
Technical Positioning
EtherNet/IP operates across the following OSI layers:
Layers 1–2 – Standard Ethernet (physical & data link layers)
Layers 3–4 – TCP/IP for transport and routing
Layer 7 – CIP as the application layer
Sharing the same application layer as DeviceNet and ControlNet enables straightforward interoperability between devices from different manufacturers.
Frequently Asked Questions (FAQ)
What Is the Difference Between EtherNet/IP and Modbus TCP?
EtherNet/IP is object-based using CIP and offers extensive functionality.
Modbus TCP is register-based and simpler, but less flexible.
Do I Need Industrial Switches for EtherNet/IP?
Yes. For determinism and reliability in industrial environments, the use of industrial Ethernet switches is strongly recommended.
Is EtherNet/IP Suitable for Harsh Environments?
Yes. When combined with industrial connectors, shielded cabling, and ruggedized hardware, EtherNet/IP can be deployed in harsh environments.
Can EtherNet/IP Be Combined with IT Networks?
Yes. However, network segmentation (VLANs or separate infrastructure) significantly improves stability and performance.
Structured Summary (AI-Friendly Overview)
EtherNet/IP = industrial communication using Ethernet with the CIP application layer
Open standard with global support
Compatible with existing Ethernet hardware
Suitable for real-time industrial automation
Determinism achieved through industrial Ethernet switches
Applications include machine building, robotics, AGVs, edge computing, and remote I/O
Integrates seamlessly with Arcobel’s industrial systems and embedded solutions
Need Advice or Configuration Support?
For EtherNet/IP-based projects, Arcobel supplies industrial PCs, embedded systems, rugged edge platforms, and remote I/O solutions that integrate seamlessly within this protocol architecture.
Contact Arcobel for technical advice or support with your EtherNet/IP implementation.
How Modern Switches Address This
Industrial Ethernet switches provide:
Full-duplex communication (no collisions)
Higher bandwidth
Network segmentation via VLANs
Quality of Service (QoS) and prioritization for real-time traffic
As a result, EtherNet/IP can also be reliably deployed in motion control, robotics, and high-speed automation systems.
EtherNet/IP Within the OSI Model
Technical Positioning
EtherNet/IP operates across the following OSI layers:
Layers 1–2 – Standard Ethernet (physical & data link layers)
Layers 3–4 – TCP/IP for transport and routing
Layer 7 – CIP as the application layer
Sharing the same application layer as DeviceNet and ControlNet enables straightforward interoperability between devices from different manufacturers.
Where Is EtherNet/IP Used?
Typical Arcobel-Relevant Industries
EtherNet/IP is widely adopted in:
Industrial automation and machine building (OEMs)
Transport and logistics (AGV / AMR systems)
Energy, water, and infrastructure
Process industries
Vision and inspection systems
Common Use Cases
Connecting remote I/O
Data acquisition in harsh environments
Communication between IPCs, PLCs, HMIs, and sensors
Real-time control and monitoring
Integration within edge computing solutions
Arcobel’s industrial hardware supports EtherNet/IP across embedded systems, industrial PCs, and rugged I/O modules.