Using Libraries Library Repository The library repository is the location on the development system for libraries and associated metadata. You can link any installed the libraries into your project by

Adding a Library to the Application The following instructions describe how to integrate for example the library Util into your application in order to use its library POUs. Select the Library Manager

Adding a Library to the Repository The following instructions describe how to install a library in the library repository. Click Tools → Library Repository . The Library Repository dialog opens. Click

Exporting Library Files You can export a library from the Library Manager of a project or from the library repository and then save it as a file to the hard disk. Procedure . Export from the Library M

Updating Library Placeholders If a project uses placeholder libraries, then it can happen that the placeholders can no longer be resolved automatically when they are loaded later. As a result, the loa

Managing Devices CODESYS manages the installed devices in the device repository . A device repository is a defined location in the file system which by default is defined as the system repository for

Operator: __QUERYPOINTER The operator is an extension of the IEC 61131-3 standard. At runtime, the operator makes it possible to convert the type of an interface reference of a function block to a poi

Operator: __TRY, __CATCH, __FINALLY, __ENDTRY These operators are extended from the IEC 61131-3 standard and they are used for specific exception handling in IEC code. Syntax __TRY <statements_try> __

Operator: __POSITION The operator is an extension of the IEC 61131-1 standard. At runtime, the operator yields the position of a variable in the declaration part or in the implementation part of a POU

Operator: __POUNAME The operator is an extension of the IEC 61131-1 standard. At runtime, the operator yields the name of the POU that contains the operator __POUNAME . The result is of type STRING .