Encryption of an automation program

摘要

The arrangement has a data network i.e. intranet (7), that is in communication connection with another data network i.e. Internet (8), so that data is exchanged between two energy systems. An encoding proxy (11) is connected between the two data networks, and forms a communication interface between the two data networks. The data is encoded or decoded by the encoding proxy during exchange of the data between two engineering systems (5, 6). An encoding interface device is controlled by the engineering systems such that a part of the data is encoded or decoded. An independent claim is also included for a method for projecting and operating an automation device.