A method for operating a functional module in a technical installation, the functional module comprising at least one technical object which implements a technical process, a control unit which controls the at least one technical object based on predetermined rules and interconnections, a communication unit which is configured to exchange data with external communication partners, and a configurable logic unit, the method comprising:
- a) permanently storing the predetermined rules and interconnections in the control unit in a fixed and unchangeable manner, said predetermined rules and interconnections being specified by a manufacturer of the functional module;
- b) transferring additional, variably specifiable rules and interconnections to the configurable logic unit of the functional module via an external communication partner of the functional module;
- c) supplementing the predetermined rules and interconnections stored in the control unit based on previously received additional, variably specifiable rules and interconnections with respect to an interaction of the functional module with at least one further functional module via the logic unit;
- and
- d) operating the functional module based on adapted rules and interconnections in the technical installation.