Method, control device and control system for the control of an automation system

In order to be able, for control of an automation system, to project, establish, process and/or simulate device functions of the control devices used in a simple and flexible way, the invention provides a method by means of which at least one software module is made available in an execution environment (350) with a program function (301-305b, 311-315, 321a-324) that can be executed in the execution environment (350), where the program function (301-305b, 311-315, 321a-324) is a representative function of the device function (201-205b, 211-215) that is stored in an associated control device (101-105, 121-125) of the control system, the device function and the program function are at least partially identical, the device function comprises at least one first variable function parameter, and the program function comprises at least one second variable function parameter that is assigned to the first function parameter of the device function, the second function parameter is adjusted as a function of user inputs, the adapted second function parameter is transferred to the associated control device (101-105, 121-125) via a network (400), and the first function parameter is set at the value of the second function parameter.Furthermore, the invention provides a control device and control system that are designed to carry out the method.