Factory automation systems are becoming increasingly connected as manufacturers adopt smart production technologies, industrial IoT, robotics, and real-time monitoring systems.

A reliable communication network is essential for connecting:

• PLC controllers

• Industrial computers

• HMIs

• Sensors

• Industrial cameras

• Robots

• Production equipment

The industrial Ethernet switch is the core networking device that ensures stable communication between automation devices.

However, choosing the right Industrial Ethernet Switch for Factory Automation can be challenging because different projects have different requirements for bandwidth, reliability, management functions, and environmental conditions.

This guide explains the key factors engineers and system integrators should consider when selecting an industrial Ethernet switch.

Why Factory Automation Needs Industrial Ethernet Switches

Reliable Communication in Production Environments

Unlike office networks, factory networks operate in demanding conditions.

Industrial environments may include:

• Electrical interference from machines

• Temperature fluctuations

• Dust and vibration

• Continuous operation requirements

Industrial Ethernet switches are designed with rugged hardware and industrial features to maintain stable communication.

Support for Real-Time Industrial Data

Modern automation systems require fast data exchange between multiple devices.

Examples include:

• PLC control signals

• Machine vision image transmission

• Robot communication

• Production monitoring data

A suitable industrial switch helps reduce communication delays and improves production efficiency.

Key Factors When Choosing an Industrial Ethernet Switch

1. Determine the Required Number of Ports

The first step is selecting the correct port capacity.

Small Automation Systems

5-port or 8-port industrial switches are suitable for:

• Individual machines

• Small control cabinets

• Basic automation networks

Medium Production Lines

16-port industrial switches are commonly used for:

• Multiple PLC systems

• Production cells

• Factory equipment networks

Large Industrial Networks

24-port or higher industrial switches are suitable for:

• Factory backbone networks

• Large automation systems

• Multiple production areas

Choosing enough ports allows future network expansion.

2. Select the Right Ethernet Speed

Network speed directly affects system performance.

Fast Ethernet (100Mbps)

Suitable for:

• Basic PLC communication

• Simple industrial devices

Gigabit Ethernet (1000Mbps)

Recommended for modern automation projects.

Applications include:

• Industrial cameras

• Large data transmission

• Smart manufacturing systems

Higher Bandwidth Networks

High-speed industrial networks may require:

• 2.5G Ethernet

• 10G uplinks

• Fiber backbone connections

3. Managed vs Unmanaged Industrial Ethernet Switch

Unmanaged Industrial Switch

An unmanaged switch provides simple plug-and-play networking.

Advantages:

• Easy installation

• Lower cost

• No configuration required

Suitable for:

• Small automation systems

• Simple device connections

Managed Industrial Switch

Managed switches provide advanced network control.

Important functions include:

VLAN

Separates different network areas and improves security.

QoS

Prioritizes important industrial traffic.

SNMP

Allows remote monitoring and network management.

ERPS Ring Redundancy

Provides fast recovery during network failures.

Managed switches are recommended for large factories and critical automation applications.

4. Consider Industrial Environment Requirements

A factory environment requires stronger hardware than office networking.

Important specifications include:

Wide Temperature Support

Industrial Ethernet switches may need to operate in extreme environments.

Common industrial temperature range:

• -40℃ to 75℃

Suitable for:

• Outdoor cabinets

• Manufacturing plants

• Transportation systems

Rugged Housing Design

Industrial switches usually feature:

• Metal enclosure

• Better electromagnetic resistance

• Fanless cooling design

This improves reliability and reduces maintenance requirements.

Industrial Installation Design

Many automation projects require compact installation inside control cabinets.

DIN-rail installation provides:

• Easy deployment

• Space-saving installation

• Convenient maintenance

5. Choose Copper or Fiber Connectivity

Different projects require different transmission methods.

RJ45 Ethernet Ports

Suitable for:

• Short-distance connections

• Factory equipment

• PLC systems

Fiber SFP Ports

Suitable for:

• Long-distance communication

• Factory backbone networks

• High-interference environments

Many industrial switches combine RJ45 and SFP ports for flexible deployment.

Common Industrial Ethernet Switch Applications

PLC Automation Systems

Connect:

• PLC controllers

• HMIs

• Sensors

• Industrial PCs

for reliable control communication.

Machine Vision Systems

Industrial cameras require stable and high-speed networking for:

• Quality inspection

• Automated measurement

• Production monitoring

Robotics Systems

Industrial Ethernet switches provide reliable communication between:

• Robot controllers

• Production equipment

• Control systems

Smart Factory Networks

Support connections between:

• IIoT devices

• Cloud gateways

• Data monitoring systems

Common Mistakes When Selecting Industrial Switches

Choosing Commercial Switches for Industrial Applications

Office switches may fail due to:

• Temperature limitations

• Poor interference resistance

• Shorter operating life

Ignoring Future Expansion

Selecting a switch with insufficient ports may increase upgrade costs later.

Consider:

• Additional devices

• Higher bandwidth requirements

• Network expansion plans

Selecting Features Without Considering Application

Not every project requires advanced management functions.

Choose based on:

• Network complexity

• Reliability requirements

• Budget

Why Choose Our Industrial Ethernet Switch Solutions

Designed for Industrial Applications

Our industrial Ethernet switches are developed for:

• Factory automation

• Industrial IoT

• Smart manufacturing

• Transportation systems

Reliable Industrial Hardware

Features include:

• Wide temperature operation

• Fanless aluminum housing

• Industrial-grade design

• Stable 24/7 operation

Advanced Network Management

Managed models support:

• VLAN

• QoS

• SNMP

• ERPS redundancy

• Web management

to help engineers build reliable industrial networks.

Flexible OEM and Project Support

We provide:

• OEM customization

• Technical support

• Project solutions

• Bulk supply capability

for global distributors, system integrators, and automation companies.