Attribute: reflection The pragma decorates a POU for a compiler search for function block variables which are decorated with the 'instance-path' attribute or the 'is_connected' attribute. POUs with th

Attribute: subsequent Important VAR_TEMP in a program with attribute 'subsequent' leads to a compiler error. The pragma is used to allocate consecutive variables in memory. When the list changes, the

Attribute: to_string The pragma affects how the result of converting an enumeration component with the TO_STRING operator is output. If the enumeration declaration has the pragma, then the name of the

Constant: Typed Literal With the ecxeption of REAL or LREAL -Constants (in this case, always LREAL is used) the smallest possible data type is used when calculating with IEC constants. If you want to

Bit Access in Variables Important Implement concurrent bit access by two tasks only if the processor can execute bit access directly on the memory. All x86 and x64 systems have commands for bit access

Configuring CODESYS You can customize the behavior, the appearance, the menu structure, and the window layout of the CODESYS Development System . In the Tools menu, you will find dialogs for adapting

Customizing the User Interface CODESYS provides the capability of customizing the user interface. You can change the window layout as well as the appearance of menus and commands according to your req

Customizing Menus You can customize the menu commands of the CODESYS user interface. In a configuration dialog, you can add or remove menus. Removing a menu or command Click Tools → Customize . The Cu

Implementation of an Interface Implementation of an Interface Implementing interfaces is based on the concept of object-oriented programming. With common interfaces, you can use different but similar

Extension of an interface You can extend interfaces just like function blocks. The interface is then also given the interface methods and interface properties of the basic interface in addition to its