PROCESS OF FIELD INSTRUMENT CONTROL (VARIANTS) Russian patent published in 2008 - IPC G05B19/42

Abstract RU 2328027 C2

FIELD: physics.

SUBSTANCE: field instrument is connected to a control unit via a data bus, the control unit requests personal identifier of the field instrument periodically, and compares it to the stored identifier, and if the identifier differs an alarm or warning message is issued, and the requested identifier is saved to the databank with a timing mark.

EFFECT: eliminates unauthorised manipulation of field instruments.

11 cl, 1 dwg

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RU 2 328 027 C2

Authors

De Grot Vinsent

Zumoberkhaus Filipp

Dates

2008-06-27—Published

2004-06-09—Filed