IT OT Convergence

Beckhoff Automation

6 min read

Beckhoff Automation

Introduction

Beckhoff is a German supplier of industrial automation solutions and is known worldwide for its focus on PC-based control, modular automation and high-performance industrial networks. The company supplies technologies for PLC, motion control, industrial I/O, HMI, robotics and real-time Ethernet communication.

In modern OT environments, Beckhoff plays an important role in:

  • machine building
  • high-speed motion control
  • robotics
  • semiconductor industry
  • building automation
  • energy infrastructure
  • smart manufacturing

Beckhoff stands out from classic PLC suppliers through a strong emphasis on software-defined automation, in which industrial control runs on industrial PC platforms instead of traditional proprietary controllers.

The company is also the developer of EtherCAT, one of the fastest industrial Ethernet protocols in modern ICS environments.

🏭 Positioning in industrial automation

Beckhoff positions itself strongly within:

The technology is widely used in:

Sector Application
machine building modular machines
automotive assembly lines
semiconductor ultra-precise motion
logistics conveyor systems
building management HVAC and energy management
food & beverage packaging lines

In Europe, Beckhoff has a strong position in OEM machine building and high-end motion control applications.

⚙️ PC-based control

A fundamental concept within Beckhoff is PC-based control.

Instead of classic proprietary PLC hardware, Beckhoff uses industrial PCs running real-time automation software.

Key characteristics:

  • standard x86 processors
  • real-time control layers
  • modular software architecture
  • virtualisation support
  • scalability
  • IT/OT integration

Benefits:

Benefit Impact
higher computing power complex automation
open architecture IT integration
software flexibility faster development
scalability modular systems
data integration analytics and AI

Drawbacks:

Risk Consequence
higher complexity management challenges
OS dependency patch management
cybersecurity surface higher OT risks
lifecycle variation compatibility issues

Strong integration with standard IT technologies makes Beckhoff particularly relevant within IT OT Convergence.

🧠 TwinCAT platform

Beckhoff’s central software platform is TwinCAT (The Windows Control and Automation Technology).

TwinCAT combines:

  • PLC
  • motion control
  • CNC functionality
  • robotics
  • safety
  • analytics
  • HMI functionality

The platform runs on top of Windows systems with a real-time extension layer.

Key functions:

Functionality Description
PLC runtime IEC 61131-3 control
motion control servo and robot control
real-time scheduler deterministic execution
OPC UA data communication
analytics edge processing
IoT connectivity cloud integration

TwinCAT supports several programming languages including:

  • Structured Text
  • Ladder Diagram
  • Function Block Diagram
  • C/C++
  • MATLAB/Simulink integrations

Beckhoff is therefore widely used in complex motion and machine control.

🌐 EtherCAT

One of Beckhoff’s most important innovations is EtherCAT.

EtherCAT is a real-time industrial Ethernet protocol designed for:

  • ultra-low latency
  • deterministic communication
  • high synchronisation accuracy
  • distributed clocks
  • motion control

Unlike standard Ethernet switching, EtherCAT processes data on the fly as telegrams pass through devices.

Benefits:

Property Effect
low latency fast response times
minimal jitter stable motion control
high bandwidth large systems
precision synchronisation multi-axis control
efficient telegram structure low overhead

EtherCAT is widely used in:

  • robotics
  • CNC machines
  • packaging lines
  • semiconductor production
  • high-speed assembly

⚡ Real-time performance

Real-time behaviour is essential in Beckhoff environments.

Key performance requirements:

  • low Latency
  • minimal jitter
  • deterministic scheduling
  • high synchronisation accuracy
  • real-time motion control

EtherCAT uses, among other things:

  • distributed clocks
  • hardware timestamping
  • real-time task scheduling
  • cycle synchronisation

In motion control environments, deviations of just microseconds can already lead to:

  • positioning errors
  • product defects
  • mechanical wear
  • unstable robot motion

Beckhoff systems are therefore often used in highly precise production processes.

🏗️ Modular OT architectures

Beckhoff strongly encourages modular automation architectures.

Typical components:

Component Function
industrial PC central control
EtherCAT I/O field communication
servo drives motion control
HMI panels visualisation
edge devices data analysis
safety controllers functional safety

Within a Purdue Model architecture, Beckhoff components typically sit at:

  • Level 0: field devices
  • Level 1: real-time control
  • Level 2: HMI/SCADA
  • Level 3: MES/analytics

Through the software-based approach, traditional boundaries between IT and OT blur faster than with classic PLC platforms.

🖥️ HMI and visualisation

Beckhoff provides integrated HMI functionality via TwinCAT and web technologies.

Characteristics:

  • browser-based HMIs
  • HTML5 visualisation
  • remote access
  • mobile dashboards
  • OPC UA integration

This simplifies integration with:

At the same time, additional risks arise around:

  • web-based attack vectors
  • browser vulnerabilities
  • remote exposure
  • credential misuse

🔐 OT cybersecurity

Due to the close coupling between IT and OT technologies, Beckhoff environments are exposed to modern cyber threats.

Risks:

  • Ransomware
  • privilege escalation
  • unpatched Windows systems
  • remote compromise
  • supply-chain attacks
  • lateral movement

Security measures include:

Measure Purpose
Network Segmentation OT isolation
Industrial Firewall protocol filtering
Application Whitelisting software control
MFA remote security
Monitoring anomaly detection
Patch Management vulnerability mitigation
Asset Inventory OT visibility
Backup recovery

Because standard Windows platforms are used, lifecycle management and patch management are crucial.

🛡️ Functional safety

Beckhoff supports extensive safety functionality via TwinSAFE.

Key applications:

  • machine safety
  • safe motion control
  • emergency stop systems
  • safety logic
  • safe I/O

Supported standards:

TwinSAFE uses safe communication over EtherCAT networks, so safety and standard control can be integrated.

Benefits:

  • less cabling
  • central engineering
  • extensive diagnostics
  • flexible architectures

☁️ Industry 4.0 and edge computing

Beckhoff aligns strongly with modern digitalisation trends.

Key integrations:

  • cloud analytics
  • edge processing
  • AI integrations
  • predictive maintenance
  • digital twins
  • data lakes

TwinCAT supports, among other things:

  • OPC UA
  • MQTT
  • REST APIs
  • SQL integrations
  • cloud connectors

This results in hybrid IT/OT architectures in which real-time automation is directly linked to enterprise analytics.

🔄 Lifecycle Management

Beckhoff environments require active Lifecycle Management due to the combination of OT and standard IT components.

Important points of attention:

  • Windows lifecycle
  • real-time driver compatibility
  • firmware management
  • hardware obsolescence
  • software dependencies
  • patch validation

In industrial production environments, incompatible updates can lead to:

  • real-time disruptions
  • motion control failures
  • production outages
  • safety risks

Updates are therefore typically extensively tested via:

  • simulation environments
  • staging systems
  • FAT
  • SAT

🧪 Practical example: high-speed packaging machine

A modern packaging machine can be fully based on Beckhoff technology.

Architecture

Layer Component
Level 0 sensors and servos
Level 1 TwinCAT IPC
Level 1 EtherCAT I/O
Level 2 web HMI
Level 3 production analysis

Network

The machine uses:

  • EtherCAT
  • real-time synchronisation
  • distributed clocks
  • redundant Ethernet connections

Data flows

Source Destination Protocol
servo drive IPC EtherCAT
IPC HMI OPC UA
production analysis MES MQTT/API

Security challenges

Key risks:

  • remote engineering access
  • Windows vulnerabilities
  • insufficient segmentation
  • uncontrolled software installations
  • vendor remote support

Security architectures are therefore increasingly designed according to:

⚖️ Relevant standards

Beckhoff solutions are often used in regulated industrial environments.

Important standards:

Standard Relevance
IEC 62443 OT cybersecurity
IEC 61508 functional safety
IEC 61511 process safety
ISO 13849 machine safety
ISA-95 IT/OT integration
NIST SP 800-82 ICS security

📈 Role in IT/OT convergence

Beckhoff is one of the suppliers that contributes strongly to the further convergence of IT and OT.

Key developments:

This shifts Industrial Automation further towards flexible software platforms with strong links to enterprise IT.

This delivers benefits such as:

  • higher flexibility
  • better Scalability
  • faster innovation
  • broader data analysis

At the same time, challenges grow around:

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