Krohne Messtechnik Gmbh

Christian Hansen

Markus Dabrowski

Christoph Spiegel

Rene Keimling

Michael Gerding

Dirk Bierbaum

Ralf Haut

A field device for determining a measured variable and that also issues a measured value in the case that an error state is present. The field device includes a sensor unit, a signal outlet, and an output device. The output device issues a state signal and/or a measuring signal via the signal outlet, wherein the state signal is assigned to a state of the field device. Additionally, the output device fulfills a safety function in the case that the state of the field device arises and thereby issues both the state signal assigned to the state as well as the measuring signal. Furthermore, there is a method for communicating the presence of a state of a field device.

Field device for determining a measured variable and method for communication

A method for providing safe access of a mobile control unit () to a field device (), wherein, in particular, the field device is protected against unauthorized access via a mobile control unit is achieved in that a connection for transmitting data is established between the mobile control unit () and the field device (), that access data for access is exchanged, that a comparison is made between the access data and stored comparison data and a comparison result is generated, and that access of the mobile control unit () to the field device () is permitted based on the comparison result.

Method for safe access to a field device

A communication arrangement, a gate device and method for data communication between a mobile operating unit and a field device provides a certain ease in handling. The method involves a user program being loaded onto or activated on the mobile operating unit. Furthermore, data from the mobile operating unit is transmitted to a data communication device and from the data communication device to a gate device and from the gate device to a transmitting device of the field device and/or is transmitted in the opposite direction.

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Hattingen, Germany

Christian Hansen