Abstract: Various aspects of the present disclosure are directed to a communication module for data transmission between at least one hardware component which is integrated into an internal network of a technical system and a back-end computer system which is connected to a packet-switched data network. In one example embodiment, a communication module is disclosed including a point-to-point connection, a device-proximal gateway is configured and arranged to provide a data transmission interface between the point-to-point connection and the internal network, and a network-proximal gateway connected to the device-proximal gateway via the point-to-point connection without intermediate stations, the network-proximal gateway configured and arranged to provide a data transmission interface between the packet-switched data network and the point-to-point connection.

Abstract: A method and apparatus for generating and updating a remote instance of a screen view for a communication device during a communication session. The screen view has a number of data elements that are presented on the screen view in accordance with a defined static or dynamic display schema. A display schema that at least partially corresponds to the display schema of the screen view is transmitted to the communication device at least a first time via a first communication path, the values of at least one of the data elements are transmitted to the communication device via a second communication path during the communication session, and the values of the data elements and the transmitted display schema are combined by the communication device in order to display the remote instance.

Abstract: A method and apparatus for generating and updating a remote instance of a screen view for a communication device during a communication session. The screen view has a number of data elements that are presented on the screen view in accordance with a defined static or dynamic display schema. A display schema that at least partially corresponds to the display schema of the screen view is transmitted to the communication device at least a first time via a first communication path, the values of at least one of the data elements are transmitted to the communication device via a second communication path during the communication session, and the values of the data elements and the transmitted display schema are combined by the communication device in order to display the remote instance.

Abstract: The invention relates to a device (1) for transmitting data between at least one data-generating unit (2a-2f) and a remote communication unit (5a-5c). The device (1) has at least one interface (6a-6d) for an internet-based communication protocol to communicate securely with the remote communication unit (5a-5c) via a non-proprietary, preferably publicly accessible network (7), and at least one interface (8a-8i) for a communication protocol that is close to the hardware to communicate with the data-generating unit (2a-2f). The device also has a security controller (9) which is able to control communications via the internet-based interface(s) (6a-6d) and via the interfaces (8a-8i) that are close to the hardware, whereby a secure memory (10) with defined memory areas (A, B, C, D) is allocated to the security controller (9). At least one certificate (a, b, c) is assigned to at least one memory area (A, B, C, D).