Appendix

• The ADS Return Codes are important across TwinCAT 3, particularly if ADS communication itself is implemented.
• The Retain data (in NOVRAM memory) can be used in a similar way from the PLC and also C++.
• In addition to the TcCOM Module concept, the TwinCAT 3 type system is an important basis for understanding.
• The following pages originate from the documentation for the Automation Interface.
  When using the Automation Interface please refer to the dedicated documentation.
• Creating and handling C++ projects and modules
• Creating and handling TcCOM modules