Symbol:

This object is used for object-oriented programming.

The object “Interface Method” is added to an interface via the command “Project  Add Object”.

If a method is inserted underneath an interface, you can add and instance only variable declarations (input, output and input/output variables) in this method.

You can only add program code to the method if a function block 'implements' the interface to which the method belongs. CODESYS then inserts the method underneath the function block.