An engineering system for planning an automation entity, wherein the engineering system is configured to store and display first objects for at least one automation device and second objects for at least one operator system in a structured manner in accordance with a technological hierarchy, and to generate from the first objects first runtime data for loading into the automation device and from the second objects second runtime data for loading into the operator system, and wherein components of the first runtime data are operatively connected to components of the second runtime data such that it is possible to distinguish between a planning error and the consequences of a delta loading of runtime data.