Klockner-Moeller

Peter Wratil

Reinhard Schroter

The invention relates to a method for the coding and the availability of a chip card, which is provided as memory storage in a programmable control system. During the initial operation of a chip card with a control system a coding process is performed. The coding process specifies the chip card to the control system and encodes the chip card. The chip card can only be copied after the coding process. However, the copy can only be used in the control system on which the original or master chip card was coded. In the event of a defect in the system hardware, a chip card may be used in a second control system so that the total system installation remains available. The second control system remains functionally operable with a chip card for a time-limited period if the code of the chip card does not coincide with the code of the control system.

Method for operating installations comprising chip-card-driven control

A processing module is disclosed for capturing of analog input values, in particular for microprocessing systems and storage-programmable control systems. The control unit (40) comprises a program storage (41) and a read-write storage (42). The program storage is provided with its own storage region (1'-8') for each measurement input (1-8). The analog measurement region, coordinated to each measurement input, is programmed in the program storage and the kind of the analog measurement value is programmed in the program storage. The storage region (1'-8') is programmed by the user before the measurement event, whereby the semiconductor switches (11-28) can be correspondingly activated for each measurement. In case of a change of the kind of the analog measurement value, or in case of a change of the analog measurement region, only the storage contents (1'-8') of the program storage (41) are to be changed according to the new measurement values. A hardware modification of the measurement inputs is not required in this case.

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Bergisch-Gladbach, Germany

Peter Wratil