METHOD FOR COMPATIBILITY CHECKING OF A MEASURING SYSTEM COMPRISING A MEASUREMENT TRANSMITTER AND A SENSOR
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Abstract
In a method for compatibility checking of a measuring system including a measurement transmitter and a sensor, a first signature is externally created for an identifying data set and is stored in the measurement transmitter. After transmission of the identifying data set from the measurement transmitter to the sensor, a second signature is calculated for the identifying data set in the sensor. If the signatures match, then the measurement transmitter and the sensor are compatible and the measurement transmitter can access data and/or functions of the sensor.
17 Citations
12 Claims
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1-6. -6. (canceled)
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7. A method for compatibility checking of a measuring system comprising a measurement transmitter and a sensor, which exchange data via a communication connection, wherein, in the measurement transmitter, an identifying data set and a first signature for the identifying data set are stored, comprising the steps of:
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transmitting the identifying data set from the measurement transmitter to the sensor; calculating a second signature for the identifying data set in the sensor with the assistance of a signing algorithm; checking in the sensor, whether the first signature matches the second signature; checking in the measurement transmitter, whether the second signature matches the first signature; if the two signatures match, the measurement transmitter and the sensor are compatible and the measurement transmitter can access data and/or functions of the sensor. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification