Abstract: An access control system controls access of a user to one or more operating functions of a technical installation. The access control system includes a receiving device configured to read access authorization data from a mobile data medium and an access control device configured to receive and validate the access authorization data from the receiving device. The receiving device continuously adds a dynamic portion to the access authorization data to create dynamic access authorization data and sends the dynamic access authorization data to the access control device. The access control device, in response to the dynamic access authorization data corresponding to a defined expectation, generates a release signal for those operating functions for which the access authorization data is valid.

Abstract: An apparatus for storing data in a non-volatile memory includes a data processing unit and a memory unit. The data processing unit is configured to acquire data blocks, terminate each data block of the data blocks with a terminating element, and assemble the terminated data blocks into a serial data stream. The memory unit is configured to sequentially write the serial data stream to the non-volatile memory. The terminating element is variable between a first code word and a second code word. The data processing unit is configured to switch between using the first code word and the second code word as the terminating element in response to the non-volatile memory having been written to completely by the memory unit.

Abstract: An apparatus for storing data in a non-volatile memory includes a data processing unit and a memory unit. The data processing unit is configured to acquire data blocks, terminate each data block of the data blocks with a terminating element, and assemble the terminated data blocks into a serial data stream. The memory unit is configured to sequentially write the serial data stream to the non-volatile memory. The terminating element is variable between a first code word and a second code word. The data processing unit is configured to switch between using the first code word and the second code word as the terminating element in response to the non-volatile memory having been written to completely by the memory unit.

Abstract: An access control system controls access of a user to one or more operating functions of a technical installation. The access control system includes a receiving device configured to read access authorization data from a mobile data medium and an access control device configured to receive and validate the access authorization data from the receiving device. The receiving device continuously adds a dynamic portion to the access authorization data to create dynamic access authorization data and sends the dynamic access authorization data to the access control device. The access control device, in response to the dynamic access authorization data corresponding to a defined expectation, generates a release signal for those operating functions for which the access authorization data is valid.

Abstract: An operator cabinet has a wall having a front side, a rear side and a cutout defined by an inner edge. An operator terminal is installed in the cutout and has a frame surrounding a display for displaying at least one system state of a technical system. The outer frame edge is dimensioned so as to be larger than the inner edge of the cutout, with the result that, when installed, the frame can rest on the front side of the wall. A plate having an outer plate edge is dimensioned so as to be larger than the inner edge of the cutout with the result that, when installed, the plate can rest on the rear side of the wall. A plurality of bolts are secured at one end on the frame and extend, when installed, through the cutout and then through corresponding holes in the plate.

Abstract: An operator cabinet has a wall having a front side, a rear side and a cutout defined by an inner edge. An operator terminal is installed in the cutout and has a frame surrounding a display for displaying at least one system state of a technical system. The outer frame edge is dimensioned so as to be larger than the inner edge of the cutout, with the result that, when installed, the frame can rest on the front side of the wall. A plate having an outer plate edge is dimensioned so as to be larger than the inner edge of the cutout with the result that, when installed, the plate can rest on the rear side of the wall. A plurality of bolts are secured at one end on the frame and extend, when installed, through the cutout and then through corresponding holes in the plate.