Krohne Messtechnik Gmbh

Julia Bublitz

Wolfgang Hottgenroth

René Keimling

A method for exchanging data between several field devices includes: implementing an exchange of data between a requesting field device and a responding field device using a publish-subscribe principle; subscribing the responding field device to request messages whose message titles include a specification of a field device identifier of the responding field device; subscribing the requesting field device to response messages whose message titles include a request identifier known to the requesting field device; the requesting field device publishing a request message to a data broker, the message title of the request message including the request identifier and the specification; the responding field device receiving the request message, evaluating the request message, and publishing a corresponding response message to the data broker, the message title of the response message including the request identifier; and the requesting field device receiving the response message based on the subscription to the response message.

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Herten, Germany

Julia Bublitz