Patent · US Active

Field device comprising two processors

US8321155B2 · kind B2 · utility

2Cited by

3References

14Claims

0Family size

Assignee

VEGA Grieshaber KG · DE

Inventors

Winfried Rauer · Fischerbach, DE
Martin Gaiser · Alpirsbach, DE
Manfred Kopp · Oak Ridge, US
Ralf Schaetzle · Fischerbach, DE

Key dates

Filing date	Mar 17, 2010
Grant date	Nov 27, 2012
Priority date	—
Expiry date	Feb 8, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG01F23/284
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A field device for measuring the filling level, the pressure or the density of a medium in a container is described. The field device comprises two processors that are separate from each other. The first processor corresponds to a lower safety standard while the second processor corresponds to a higher safety standard. Functions of the field device that are directed towards safety are carried out in the second processor. Functions that are less critical to safety are carried out in the first processor. Data exchange between the two processors is controlled by way of an operating system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.