IT OT Convergence

Robot

4 min read

Robot

A robot is a programmable system that automatically performs physical tasks via sensors, actuators and control software. Robots are widely deployed within Industrial Automation, production environments, logistics, inspection systems and critical infrastructures.

Within OT environments, robots combine mechanics, electronics, software and industrial communication to carry out processes autonomously or semi-autonomously.

Robots form an important part of:

🤖 What is a robot?

A robot is a machine that performs controlled physical actions via software and sensors.

Important characteristics:

Property Description
Programmable Tasks configurable in software
Automatic Independent execution
Sensor integration Environmental detection
Actuation Mechanical motion
Real-time control Fast response
Repeatability Constant accuracy

Robots CAN operate:

  • Fully autonomously
  • Semi-autonomously
  • Operator-controlled
  • Collaboratively with people

🏭 Robots within Industrial Automation

Within industrial environments, robots are used for repetitive, hazardous or precise work.

Common applications:

Application Description
Assembly Product assembly
Welding Automated welding
Pick-and-place Moving parts
Palletising Stacking goods
Packaging Automated handling
Quality control Inspection and vision analysis
Machine loading Product feed

Robots commonly integrate with:

⚙️ Structure of a robot

An industrial robot consists of multiple subsystems.

Key components

Component Function
Mechanical arm Physical motion
Embedded controller Local control
Sensor Environmental detection
Actuator Motion execution
Servo motors Precision motion
Vision systems Object recognition
Safety controller Functional safety

Many robots feature multiple axes for complex movements.

🧠 Control and Motion Control

Robot control requires Real-time processing.

Important functions:

Function Description
Motion control Motion regulation
Path planning Motion optimisation
Positioning Accurate location control
Synchronisation Coordination between axes
Collision avoidance Collision prevention
Vision processing Object detection

Real-time control is performed via:

  • RTOS
  • Motion controllers
  • Embedded controllers
  • Industrial IPCs

🚗 Mobile robots

In addition to fixed industrial robots, mobile robotic systems exist.

Examples:

Type Application
AGV Automated transport
Autonomous Mobile Robot (AMR) Dynamic logistics
Inspection robot Monitoring and inspection
Drone Aerial inspection
Service robot Supporting tasks

Mobile robots commonly use:

👷 Cobots

An important category is the Cobot.

Cobots are designed to safely collaborate with operators without heavy physical guarding.

Important characteristics:

Property Cobot
Human-robot collaboration Direct
Safety functions Advanced
Programming ease High
Flexibility High

Cobots are widely deployed in flexible production environments.

📡 Industrial communication

Robots communicate via industrial networks and protocols.

Protocol Application
ProfiNET Real-time automation
Ethernet IP Industrial Ethernet communication
Modbus TCP Data exchange
OPC UA Standardised integration
MQTT IoT telemetry
CAN Embedded vehicle communication

Important network requirements:

🛡️ Functional Safety

Robots can perform hazardous movements and therefore fall under strict Safety standards.

Important safety functions:

  • Emergency Stop
  • Safety zones
  • Speed limiting
  • Collision detection
  • Position monitoring
  • Access detection

Commonly applied standards:

Standard Topic
ISO 12100 Machine safety
ISO 13849 Safety control
IEC 61508 Functional safety
IEC 62061 Machine safety
Machinery Directive European regulation

Robots commonly use:

🔐 Cybersecurity risks

Modern robots are connected to IT and OT networks and introduce cybersecurity risks.

Important threats:

Risk Possible consequence
Unauthorised access Manipulation of motion
Malware Production disruptions
Firmware attacks Control takeover
Network attacks Downtime or sabotage
Ransomware Production stoppage
Supply chain risks Compromised software

Because robots directly drive physical processes, cyberattacks can have safety implications.

🔒 Security measures

Robots require OT-specific cybersecurity measures.

Measure Purpose
Network Segmentation Separation of robot networks
Zero Trust Continuous authentication
MFA Securing management interfaces
Application Whitelisting Only approved software
IDS Anomaly detection
Patch Management Remediation of vulnerabilities
Logging Monitoring and audit trails
Secure Boot Verifying firmware

Many organisations implement robot security in line with IEC 62443.

⚡ AI and autonomous robots

More robots are using:

Applications:

Technology Function
Vision AI Object recognition
Predictive maintenance Maintenance prediction
AI planning Dynamic task optimisation
Sensor fusion Environmental analysis

This creates increasingly autonomous robotic systems.

🌐 Robots within Industry 4.0

Robots form an important part of smart factories.

Important integrations:

Technology Purpose
Digital Twin Virtual simulation
Industrial AI Intelligent automation
Edge Computing Local analysis
Industrial Internet of Things Connected equipment
Unified Namespace Central data distribution

Robots deliver real-time data to:

📈 Benefits of robots

Key benefits:

  • Higher productivity
  • Constant quality
  • Fewer human errors
  • Improved safety
  • Continuous operation
  • Higher accuracy
  • Lower operational costs

Robots also support:

  • LEAN
  • Flexible production
  • Smart manufacturing
  • High-mix production

⚠️ Challenges

Important challenges:

Challenge Description
High investment costs Complex implementations
Cybersecurity Increasing connectivity
Integration Linking with existing OT systems
Safety compliance Strict regulations
Complex maintenance Specialist knowledge required
Legacy systems Compatibility issues

Particularly within older OT environments, integration can be challenging.

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