Vega Grieshaber Kg

Manfred Kopp

Ralf Schaetzle

Martin Gaiser

Andreas Isenmann

Winfried Rauer

Fridolin Faist

Robert Laun

Juergen Lienhard

Manfred Metzger

Harald Auber

Jürgen Lienhard

Described is monitoring of an analog-digital conversion of a measured value of at least one of a pressure gauge, a level gauge and a flowmeter. Different measured values can be provided for the analog-digital converter by means of a first microcontroller, wherein these measured values are subsequently transmitted from this first area into a second area by means of a unidirectional coupler. These values are acquired by a second microcontroller in the second area and compared with reference values that are stored in the second area or at another location. This diagnostic circuit may make it possible to detect drifts of resistances and of reference voltages, as well as a faulty analog-digital converter or a program execution error of the first microcontroller.

Diagnostic circuit for monitoring an analog-digital converter circuit

The invention pertains to a device such as a sensor, operator device, communication device, or a liquid level metering device, with a measured value input to apply a measured value. The device includes at least a first memory region to provide for an adjustment factor, and a computer, which is designed and/or controlled to multiply a first whole number by a floating-point number to obtain a product of the multiplication, while the first whole number corresponds either to the applied measured value or the provided adjustment factor; and, the floating-point number corresponds to the other measured value or to the adjustment factor. The computer has a second memory region for the storing of the floating-point number in a format of a second whole number, and the computer is designed and/or controlled to carry out a multiplication of the first whole number and the second whole number.

Method and apparatus having a measured value input for applying a measured value

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.

Field device comprising two processors

A method for generating a device description for a measuring apparatus in a target field bus protocol is described. The method comprises the reception of a first device description of the apparatus. The first device description of the apparatus comprises at least one variable. The at least one variable is related to a storage cell of the apparatus. The target field bus protocol is selected from a plurality of field bus protocols, and at least one block is formed from the at least one variable. The at least one block has a maximum block size that corresponds to the smallest maximum block size of at least two field bus protocols of the plurality of field bus protocols. The maximum block size can be transmitted via a field bus with a single request when the respective field bus protocol is used. Subsequently, the at least one block is provided as device description for the apparatus in the target field bus protocol.

Generating of a device description for a measuring device

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Wolfach, Germany

Manfred Kopp