TwinCAT 3 Automation Framework for Machine Builders
Challenge
As machine complexity increases, developing automation software from scratch for every project becomes increasingly inefficient. Different engineers often implement similar functionality in different ways, leading to duplicated effort, inconsistent user experiences, longer commissioning times, and higher maintenance costs.
A machine-building company required a standardized software architecture that could be reused across multiple machine platforms while supporting a wide range of automation technologies including motion control, robotics, machine vision, communication protocols, diagnostics, and HMI development.
The goal was to create a scalable TwinCAT 3 framework that would accelerate machine development, improve software quality, and provide a consistent engineering approach across projects.
Solution
A comprehensive automation framework was developed using Object-Oriented Programming (OOP) principles in TwinCAT 3.
The framework consisted of reusable libraries, interfaces, function blocks, and software components designed to standardize machine development while remaining flexible enough to support a wide variety of applications.
The architecture covered the most common machine subsystems used throughout the company’s projects, allowing engineers to build new machines using proven and tested software components rather than developing functionality from scratch.
System Architecture
Pneumatic Automation Library
Reusable function blocks were developed for pneumatic actuators supporting multiple hardware configurations, including:
Single-acting cylinders
Double-acting cylinders
Single sensor configurations
Dual sensor configurations
Various valve and feedback combinations
The library provided standardized diagnostics, alarm handling, state management, and HMI integration across all pneumatic devices.
Motion Control Library
Standardized software components were created for:
Beckhoff Motion Control
Servo axis management
Motion sequencing
Positioning applications
Diagnostics and status monitoring
This provided a consistent approach to motion programming across all projects
conveyor_belt
Drive Integration
Reusable drivers and interfaces were implemented for:
Beckhoff drives
Jenny Science motion systems
CiA 402 compliant drives
The architecture standardized control, diagnostics, parameter handling, and alarm management across different drive technologies.
precision_manufacturing
Robotics Integration
Dedicated software modules were developed for:
Mitsubishi robots
Fanuc robots
Robot communication, status monitoring, command execution, and diagnostics were abstracted into reusable software interfaces that simplified machine integration.
bolt
XTS Support
Reusable software components were created for Beckhoff XTS applications, including:
Mover management
Routing logic
State control
Diagnostics
Process integration
This significantly reduced development effort for XTS-based machines.
Communication Framework
A unified communication layer was implemented covering:
TCP/IP
UDP
Modbus TCP
Beckhoff ADS
OPC UA
Serial communication
The framework provided standardized interfaces, diagnostics, error handling, and reusable communication services.
Machine Vision Integration
Reusable integrations were developed for:
Cognex vision systems
SensoPart vision systems
IFM smart cameras
The software architecture standardized communication, inspection handling, result processing, and diagnostics across all supported vision platforms.
File Handling
Libraries were developed for:
TXT file processing
CSV file generation
Data export
Report generation
Configuration management
HMI Architecture
A major part of the project focused on standardizing HMI development.
Reusable faceplates were created for all framework components, providing a consistent operator experience across different machine platforms.
To further reduce engineering effort, automatic HMI generation mechanisms were implemented. Based on software object declarations within the PLC application, large portions of the operator interface could be generated automatically without requiring manual HMI development.
This approach dramatically reduced development time while ensuring consistency between software and visualization layers.
Diagnostics and Alarm Management
All framework components were integrated with TwinCAT EventLogger.
The framework automatically provided:
Alarms
Warnings
Diagnostic messages
Status information
Event tracking
This ensured a unified diagnostics strategy across all machines built on the platform.
Key Responsibilities
Software architecture design
Object-oriented TwinCAT 3 development
Library and framework development
Motion control abstraction
Robotics integration architecture
Communication framework design
Vision system integration
HMI architecture development
Automatic HMI generation
Diagnostics and EventLogger integration
Engineering standardization
Results
The completed framework became a reusable software foundation for multiple machine platforms across the organization.
Key achievements included:
Standardized TwinCAT software architecture
Significant reduction in engineering effort
Faster machine development cycles
Reduced commissioning time
Consistent diagnostics and alarm handling
Standardized HMI user experience
Improved software maintainability
Simplified onboarding of new engineers
Increased software quality through reuse of proven components
Scalable foundation for future machine development
Rather than solving a single automation challenge, the framework enabled the company to repeatedly deliver new machines faster and with greater consistency by leveraging a common software platform.
Technologies
TwinCAT 3
Object-Oriented Programming (OOP)
Interfaces and Abstraction Layers
Beckhoff Motion Control
EtherCAT
XTS
Mitsubishi Robots
Fanuc Robots
Jenny Science
CiA 402
OPC UA
ADS
TCP/IP
UDP
Modbus TCP
Serial Communication
Cognex Vision
SensoPart Vision
IFM Smart Cameras
TwinCAT EventLogger
TwinCAT HMI
Automatic HMI Generation
TXT / CSV Processing
Looking for TwinCAT expertise in testing and validation systems?
Whether you’re developing automated test equipment, force-control applications, data acquisition systems, or regulated manufacturing solutions, I can help design and implement robust Beckhoff TwinCAT-based platforms.