Method for Secure Servicing of a Field Device
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United States of America Patent
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Issued Date -
Aug 27, 2015
app pub date -
Aug 28, 2013
filing date -
Sep 20, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for secure servicing of a field device (FD) of process automation technology. The field device (FD) has a web server (WS), via which the field device (FD) can be serviced, wherein the field device (FD) has a function (CAPTCHA) for distinguishing computers from humans, wherein, upon an accessing of the field device (FD) via the web server (WS), the function (CAPTCHA) for distinguishing computers from humans is executed, in order to assure that the accessing of the field device (FD) is being done by a human user.
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