Method for safe access to a field device
AssigneeKROHNE Messtechnik GmbH
InventorsChristoph SPIEGEL, Markus DABROWSKI, Rene KEIMLING, Christian HANSEN
Life of this patent
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Abstract
A method for providing safe access of a mobile control unit (1) to a field device (2), wherein, in particular, the field device is protected against unauthorized access via a mobile control unit is achieved in that a connection for transmitting data is established between the mobile control unit (1) and the field device (2), that access data for access is exchanged, that a comparison is made between the access data and stored comparison data and a comparison result is generated, and that access of the mobile control unit (1) to the field device (1) is permitted based on the comparison result.
Claims13
1-10. (canceled)
Method for safe accessing of unit at least one field device by at least one mobile control unit, comprising:
- establishing a connection for transmitting data at least between the mobile control unit and the field device,
- transmitting access data for accessing of the mobile control unit to the field device,
- comparing the access data with stored comparison data and generating a comparison result, and
- permitting access of the mobile control unit to the field device based on the comparison result indicating that access is permissible.
Dependencies are inferred from the claim text.