A curated list of TwinCAT resources.

• Beckhoff
• Blogs
• Forums
• Libraries
• Repos
• Videos
• Other

Official Beckhoff pages

• Beckhoff - Main website
• Beckhoff Github - Main Github page
• Infosys - Main resource for datasheets, information and example code.
• TCBSD Packages - Package directory for TwinCAT/BSD

TwinCAT related blogs

• AllTwinCAT by Jakob Sagatowski - The TwinCAT development blog
• Automacaoweb [translated] by Automacaoweb - A large collection of TwinCAT examples and walkthroughs (Portuguese)
• Automate to live by Bram Gurdebeke - A blog about automation and TwinCAT.
• Chris PLC Blog by Chris - An active blog on TwinCAT, TwinCAT Vision, and Robotics
• Contact and Coil by Scott Whitlock - Programming tutorials on TwinCAT 3
• Cook & Code by Roald Ruiter - TwinCAT blog by the author of TcBlack
• Got TwinCAT [translated] by Voronin Nikolai (Russian)
• Kassym Dorsel’s Blog by Kassym TwinCAT 3 development blog
• PLC Coder by Gerhard Barteling - TwinCAT development blog from the author of STweep
• Stefan Henneken by Stefan Henneken - Posts covering TwinCAT, Object oriented programming, .Net and C#
• WJB Automation Blog by Wojciech Bagniewsk - Posts covering TwinCAT and the 3D engine Unity

TwinCAT related forums

• SPS-Forum [translated] - Big German PLC forum, many discussions about TwinCAT 2/3 (German)
• TwinCAT LinkedIn forum - A friendly group of TwinCAT developers
• TwinCAT XAE version overview - Non-official TwinCAT changelog by Bosch Connected Industry
• twinControls - An unofficial "Beckhoff Community" forum
• SASE: Society of Automation Software Engineers - A Slack group and professional networking society for automation software engineering, with a large Beckhoff contingent

• Fisothemes TwinCAT Libraries A collection of TwinCAT Libraries, such as Dynamic Collections, Hashing Algorithms
• IntecreLibs library Open source library with utility functions for TwinCAT developed by Mark Lazarides.
• mobject Growing open source library based on OOP principles for machine builders.
• OSCAT libraries OSCAT has developed a comprehensive standard library for the IEC61131-3 language
• Struckig Open source library for online, time-optimal, jerk-constrained trajectory-generation for multiple degree-of-freedoms.
• Twingrind Open source call-graph profiling for TwinCAT 3

TwinCAT related repos and github groups

• Beckhoff USA Community Repo - A community collection of samples and examples
• Jack Borelius' Github - A comprehensive collection of Open-source framework controls for TwinCAT HMI
• Non-official TwinCAT changelog - This repo is a community effort which tries to track changes in Beckhoff's TwinCAT software
• Stefanbesler - Collection of TwinCAT repos, including a simple and lightweight JSON decoder.
• TcOpenGroup - Open source libraries and tools for Beckhoffs' TwinCAT3 platform
• TcUnit - An unit testing framework for Beckhoff's TwinCAT 3
• Twinpack - A powerful and user-friendly package management tool for TwinCAT libraries.

TwinCAT video tutorials and YouTube channels worth seeing

• Beckhoff AU - Teachable - Contains free training videos
• Beckhoff Italy Tutorials - A large collection of tutorials from the team in Italy (Italian)
• Beckhoff UK - Virtual Visits - Free videos from the team in Beckhoff UK (Currently offline)
• Beckhoff USA learning videos - A collection of free videos teaching TwinCAT, TwinCAT/BSD, Vision, etc...
• Coding Bytes TwinCAT 3 - Non-official Beckhoff video series from the members of Beckhoff Australia
• Coding Bytes TwinCAT HMI - Non-official Beckhoff video series from the members of Beckhoff Australia
• Curso OOP IEC61131-3 PLC by Runtimevic - OOP IEC61131-3 PLC Course (Spanish)
• Electrical Automation Hands-On - Hands-on and practice experience in industrial automation control (Includes TwinCAT)
• Jakob Sagatowski's YouTube channel - Comprehensive tutorials about PLC programming and TwinCAT 3
• Oleg Mueller’s YouTube channel - Video series conveys practical knowledge about TwinCAT 3 PLC and HMI
• PLC programming for beginners - Youtube playlist by Prof. Dr. Stöcker, University of Applied Sciences Hamburg. Perfect for beginners, includes TwinCAT setup and IEC61131 basics (German).
• SquishyBrained YouTube channel - Video series on PLC Programming and TwinCAT

Non-TwinCAT related links, but worth looking at!

• Design Patterns in Object Oriented Programming by Christopher Okhravi - This is a MUST WATCH video series!
• FunFunFunction by MPJ This is a fantastic series for learning JavaScript (great for TwinCAT HMI)
• Link for auto translated pages - Modify this link to make an autotranslated page

Please feel free to request links to be added to this list by raising a new issue on the issues tab.