Krohne Messtechnik Gmbh

Sven Walbrecker

Dirk Kuschnerus

Hansjörg Mucke

Martin Krawczyk-Becker

Josef Neven

Stefan Neuburger

Lars Lemke

Christopher Lüke

A method for operating a field device for process measurement technology includes: capturing and storing fieldbus messages in a learning mode; in a plurality of capture steps, at least partially storing the captured and stored fieldbus messages as a learning data set in each case if a status rule of the field device is fulfilled, so that a plurality of learning data sets are captured; in an evaluation step, evaluating a plurality of learning data sets to derive a message rule dependent on at least one fieldbus message for changing from normal mode of the field device to diagnostic mode of the field device; and applying, by the field device, the message rule for changing from the normal mode of the field device to the diagnostic mode of the field device instead of or in addition to the status rule.

Method for operating a field device of process measurement technology and filling system with which the method is carried out

A flowmeter includes a control and evaluation unit, a sensor unit for capturing a primary variable, and a memory for storing data sets. The control and evaluation unit has a computing unit for determining the flow rate and/or for operating the sensor unit. The sensor unit is connected to the computing unit. During operation, the computing unit determines the flow rate from the primary variable, and determines the flow rate based on a data set and/or controls the sensor unit based on a data set. The data set includes a set of calibration values and/or a parameter for the operation of the sensor unit, and/or a parameter for determining the flow rate. The data set is assigned to a value of a state variable. The state variable is a medium parameter and/or a process parameter. The computing unit exchanges the data set depending on a change in the state variable.

Flowmeter, method for operating a flowmeter, system and method for operating a system

A method for filling a target volume into a container by means of a measuring arrangement is described and illustrated. The measuring arrangement includes at least one flowmeter for measuring the flow of a medium flowing into the container, at least one actuator and at least one control unit. The flowmeter includes a computing unit. The filling process can be started and ended by actuating the actuator. The control unit is connected to the actuator and the flowmeter via a communication system. The control unit is set up in such a way that, during operation, it sends a control command to the actuator to end the filling process when a defined limit value of the fill volume, which correlates with the target volume, is reached.

Method for filling a target volume into a container, measuring arrangement and flowmeter

A method for operating a filling system with first and second filling points is disclosed. The first filling point has a first unit for controlling and monitoring the filling of the first filling point. The second filling point has a second unit for controlling and monitoring the filling of the second filling point. The first and second units are connected via a communication channel. In an operating state, the first filling point switches to diagnostic mode. The first unit reports the diagnostic start to the second unit. The first unit outputs substitute flow rate or level values. The second unit transmits a deviation message to the first unit in the event of a deviation of the current flow or level value from an expected value. After receipt of the deviation message, the first unit interrupts diagnostic mode and switches to normal operation or outputs corrected substitute flow or level values.

Method for operating a filling system and filling system

A bus system for a process system, having a first bus subscriber which transmits bus messages and having at least one first bus subscriber which receives bus messages, wherein the transmitting first bus subscriber and the receiving first bus subscriber are connected to one another via a first data bus, wherein the transmitting first bus subscriber is designed such that it transmits control commands to the receiving first bus subscriber, wherein the receiving first bus subscriber is designed such that it executes the control commands of the transmitting first bus subscriber and achieves the object of providing a bus system that is designed to be fail-safe in a special way.

Fail-safe bus system for a process system

A magnetic flowmeter () for measuring the flow of a flowing medium having a measuring tube () with a cross section that changes along its length and preferably the cross section in the middle section of the measuring tube () is less than at the beginning and end of the measuring tube (), preferably the cross section of the measuring tube () is rectangular in its middle section and wherein the housing () preferably has a circular cross section. The inlet section () of the measuring tube () is formed of two segments (and), of which a first segment (), in terms of flow direction, has a cross section that increases in the direction of flow and a downstream adjoining second segment () has a cross section that decreases in the direction of flow. Optionally, the outlet section () is similarly formed of two sections ().

Growing community of inventors

Wesel, Germany

Sven Walbrecker