Section: CFCCreation

This section contains all subsections that are interpreted by the CFC generator.

SEC cfc.CFCCreation

    SEC CreateCFCProgram : <CFC program identifier>    //optional: yes, modifier [UPDATE]
            StandardCallTask := <Task type>;               //optional: yes, type: ID
            CustomCallTask := <Task type>;                 //optional: yes, type: ID
            ParentFolder := <create folder ID;             //optional: yes, type: ID
    END_SEC

    SEC CreateCFCModuleCall                            //optional: yes, modifier [UPDATE]
            PreferredCFCProgram := <CFC program>           //optional: yes; type: FB type
    END_SEC

    SEC CreateCFCIOCall : <CFC IO call ID>             // optional: yes; modifier [UPDATE]
            FB := <FB name>;                               // optional: no; type: FB type
            PreferredCFCProgram := <CFC program>           // optional: yes; type: FB type
            FBInstanceBaseName := AInput;                  // optional: yes; type: identifier
    END_SEC

    SEC CreateFolder : <folder ID>                     //optional: yes, modifier [UPDATE]
            ParentFolder := <folder name>;                 //optional: yes, type: ID
    END_SEC

END_SEC

Details regarding the syntax of definition types are described in the section Module Declaration.

Subsection: CreateCFCProgram

If a module declaration contains a section cfc.CFCCreation including the subsection CreateCFCProgram, a CFC program will be created for the assigned module type. The CFC program will be inserted below the target application of the next higher toplevel/decoupled parent module instance. The definition CustomCallTask or StandardCallTask can be used to define the task that calls the CFC program to be created.

. Specification:

The target of the section CreateCFCProgram identifies the CFC programs of this module type. Basically a module type can define and create several CFC programs for its module instance.
A definition for StandardCallTask or CustomCallTask must exist, but only one definition is allowed.
- For StandardCallTask the three IDs LOW, MEDIUM, and HIGH are available to define the task of the next higher toplevel/decoupled parent module instance.
- For CustomCallTask all target IDs are available that are used in the respective custom task of the next higher toplevel/decoupled parent module instance.
In ParentFolder the target ID of the CreateFolder section can be entered. Then the created CFC program is added in this sub subfolder (CreateFolder).

Subsection: CreateCFCModuleCall

If a module declaration contains a section cfc.CFCCreation including the subsection CreateCFCProgram, a call of the module instance FB will be created for the assigned module type in the CFC program of the next higher parent module instance.

. Specification:

PreferredCFCProgram defines the CFC program to be used if several program are available.

Subsection: CreateCFCIOCall

The section is used to mark I/Os of a module type or module declaration. For these I/Os FB instances of a defined type are created. Then calls of these FB instances are created within the CFC program.

. Specification:

The target of the CreateCFCIOCall section defines the module I/O ID for which a global I/O FB will be created. The created I/O FB will be called in a CFC program.
FB defines the type of function block which is globally instantiated and called for the I/O FB mentioned above.
PreferredCFCProgram defines the CFC program to be used if several program are available.
FBInstanceBaseName defines a "base name" which is used for the naming of the created I/O FBs. If the definition does not exist the name of the module instance is used for the base instance.

Subsection: CreateFolder

This section contains parameters to create subfolders below the AC_CFC_Programs folder. Corresponding to this a ParentFolder can be defined in the CreateCFCProgram section. CFC programs are then generated in the directory which is created by the CreateFolder section. Folders itself can define a ParentFolder to specify further sub and sub-sub folders.

. Specification:

In ParentFolder the target ID of the CreateFolder section can be entered. Then the created directory will be created in this subfolder (CreateFolder).

Example 39. Example

 SEC cfc.CFCCreation
                SEC CreateCFCProgram : Standard
                        StandardCallTask := MEDIUM;
                        ParentFolder := SubFolderUnderFolder;
                END_SEC
        SEC CreateFolder : SubFolderUnderFolder
                ParentFolder := SubFolder;
        END_SEC
END_SEC