Method for engineering a method- or process-engineering plant, function module and stored program control

A method for engineering a method- or process-engineering plant with at least one function module, a corresponding function module and a stored program control, wherein the function module includes the stored program control and the method- or process-engineering module that can be controlled or regulated thereby fur use as part of the plant, where a parameter-configurable user program is loaded into the stored program control, and information for the integration of the function module in a file is provided, during engineering of the plant, which defines the parameters for the application-specific configuration of the function module via a plant-engineering tool and stored via an interface specified in a formal description language, for configuration of the user program, in a memory area of the control such that an engineering tool, which is specific to the respective stored program controls used within function modules, is advantageously no longer required.