US Patent 7890300 Method for monitoring a field device
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Patent abstract
A method for monitoring a field device connected via a data bus with a control unit. To prevent unauthorized tampering with the field device, the control unit requests, at intervals of time, an individual identifier of the field device. The requested individual identifier is compared with an identifier stored in the control unit. An alarm is produced or a warning, in the case of a change in the requested individual identifier.
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Patent Inventor Names
Philipp Zumoberhaus0
Vincent De Groot0
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US Patent 07890300 Method for monitoring a field device US Patent 7890300 Method for monitoring a field device
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Patent Number
07890300
Patent Number
7890300
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US Patent 07890300 Method for monitoring a field device
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Is a
Patent jurisdiction
Patent number
07890300
Date of patent
February 15, 2011
Patent application number
10560345
Date Filed
June 9, 2004
Patent primary examiner
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