DE102016122110A1 - Data transfer system - Google Patents

Abstract

The invention relates to a data transfer system comprising a field device (1, 3, 5) comprising a closed, externally accessible housing portion (7, 9, 11) with a housing wall transparent to radio signals (13, 15, 17) in which a a field device electronics (19) connected device (21, 23) for wireless readout of a memory of a radio transponder is included, and on the field device (1, 3, 5) attachable radio transponder (25, 27), esp. Transponder or an NFC transponder, comprising an antenna (29, 31), a transponder circuit (33) connected to the antenna (29, 31) and an antenna (29, 31) and the transponder circuit (33) of the device ( 21, 23) of the field device (1, 3, 5) wirelessly readable memory, with the data as error-free as possible to that field device can be transmitted, for which the data are determined, and the esp. Also readily usable at sites where high demands Hygiene and cleanliness consist, which is characterized in that the radio transponder (25, 27) part of a on the outside of the housing portion (7, 9, 11) releasably fastened and after its attachment from the housing portion (7, 9, 11) again peelable data transfer module (35, 37, 39, 41), in particular a on the housing portion (7, 9, 11) can be pushed or plugged data transfer module (35, 37, 39, 41).

Description

• - einem Feldgerät, das einen geschlossenen, von außen zugänglichen Gehäusebereich mit einer für Funksignale transparente Gehäusewand umfasst, in dem eine an eine Feldgerätelektronik angeschlossene Vorrichtung zum drahtlosen Auslesen eines Speichers eines Funk-Transponders eingeschlossen ist, und
• - einem am Feldgerät anbringbaren Funk-Transponder mit einer Antenne, einer an die Antenne angeschlossenen Transponderschaltung und einem über die Antenne und die Transponderschaltung von der Vorrichtung des Feldgeräts drahtlos auslesbaren Speicher.

The invention relates to a data transfer system, with

• a field device which comprises a closed, externally accessible housing area with a housing wall transparent to radio signals, in which a device connected to a field device electronics for wireless readout of a memory of a radio transponder is enclosed, and
• - An attachable to the field device radio transponder with an antenna, a transponder connected to the antenna transponder and a via the antenna and the transponder circuit from the device of the field device wirelessly readable memory.

Field devices are used in industrial metrology, in particular in process and automation technology, among other things for metrological recording of process-relevant measured variables. These field devices include, among others, sensors, transmitters, transmitters equipped with one or more sensors, transducers and measuring devices for metrological detection of measured variables of the most varied types. used in industrial plants, where they are installed at locations distributed over the plant, at which they detect decentrally measured variables and output a measurement signal reproducing the detected measured variable. These field devices are usually connected to a superordinated unit, e.g. a central control unit, such as e.g. a control room or a process control system connected, which receives the measurement signals of the individual field devices, evaluates and used for example for monitoring and / or control of a process to be performed by the plant.

Field devices require a variety of different types of data for their operation. These data include field device-specific data, e.g. Parameters required for generating the measurement signal representing the measurand. This can be, for example, calibration data, parameters and / or characteristic curves of sensor components present in the field device. These data, if known at the factory, can be stored in the field device before the field device is shipped. In addition, they also include application-specific data, such as Tag names, tag specific parameters, user configurable device settings data, such as user interface information. Measuring ranges or units, as well as configuration data, for configuring the connection of the field device to the parent unit, which must be transmitted to the field device before it can start its regular operation.

In addition, a transmission of data to a field device but also after the first startup may be required. This is the case in particular with field devices which comprise a replaceable component, for the operation of which the field device requires component-specific data. An example of this is electrochemical sensors equipped with an ion-selective membrane, such as e.g. be used to determine an oxygen content of a medium. During measurement, the membranes of these sensors are exposed to a process medium whose oxygen content is to be determined and, over time, change their properties relevant for measuring the oxygen content. As a result, they need to be replaced at regular intervals.

From the prior art, different ways are known, on which data can be transmitted to field devices.

One such way is to field devices via a connection suitable for transmitting data, such as e.g. a bus line, to a superordinated unit, e.g. a process control system to connect, via which then data can be transmitted to the field device. However, superordinated units are regularly connected to a plurality of different field devices and usually arranged at a location remote from the field devices. Accordingly, special precautions have to be taken to ensure that certain data for a specific field device is transmitted via the higher-level unit to that field device for which it is intended. Moreover, this form of data transfer can only be used with field devices which have an interface suitable for connection to a connection suitable for the transmission of data.

Furthermore, it is known to equip field devices with a radio transponder whose memory can be read out and / or written wirelessly by means of a portable operating unit detached from the field device.

• - einem Feldgerät, das einen geschlossenen, von außen zugänglichen Gehäusebereich mit einer für Funksignale transparente Gehäusewand umfasst, in dem eine an eine Feldgerätelektronik angeschlossene Vorrichtung zum drahtlosen Auslesen eines Speichers eines Funk-Transponders eingeschlossen ist, und
• - einem am Feldgerät anbringbaren Funk-Transponder mit einer Antenne, einer an die Antenne angeschlossenen Transponderschaltung und einem über die Antenne und die Transponderschaltung von der Vorrichtung des Feldgeräts drahtlos auslesbaren Speicher.

For example, in the DE 10 20011 084 789 A1 a data transfer system described with

• a field device which comprises a closed, externally accessible housing area with a housing wall transparent to radio signals, in which a device connected to a field device electronics for wireless readout of a memory of a radio transponder is enclosed, and
• - a radio transponder attachable to the field device with an antenna, a transponder circuit connected to the antenna and a memory which can be read out wirelessly by the device of the field device via the antenna and the transponder circuit.

In this data transfer system, the radio transponder is used as a buffer over which data is transmitted by radio from a control unit detached from the field device to the radio transponder, which are then read out by the device of the field device. In addition, data can be transmitted by radio from the field device electronics to the radio transponder, which are then read by radio from the control unit.

Attaching a radio transponder to a field device, however, can be problematic at sites where high cleanliness and hygiene requirements exist. The reason for this is that impurities can deposit on the radio transponder, which as a rule can not easily be removed with cleaning methods customary in these locations and / or their removal could result in damage to the radio transponder.

Furthermore, field devices are known which have a user interface equipped with a display and an input device. With these field devices, it is possible to manually input data to be transmitted to the field device via the user interface of the field device. However, such a manual input is error prone and, depending on the size of the data set to be transmitted under certain circumstances, also very time consuming. In addition, due to lack of space and / or cost reasons, many field devices can not be equipped with a user interface that can be used for manual data transfer.

In connection with field devices which have interchangeable components, it is also known to equip the interchangeable component with a wirelessly readable from the field device memory module in which component-specific data is stored. An example of this is in the DE 10 2011 088 012 A1 described. The field device described therein comprises an exchangeable cap into which a storage module which can be read out wirelessly by the field device is used, which is then mounted together with the cap on the field device. However, this solution, which is very advantageous with regard to the transmission of the component-specific data to the field device for which this data is intended, can only be used if sufficient space is available in the replaceable component for receiving the memory module. The latter is especially for very small interchangeable components is a problem.

For replaceable components, such as the o.g. Membranes are very often components which are exposed to prevailing ambient conditions and / or a process medium having the measured variable to be detected at the place of use. Memory modules can therefore only be used if it is ensured that the components equipped with them are only exposed during operation to temperatures that the memory module can withstand. Accordingly, the use of the memory module may result in a limitation of the temperature range to which the replaceable component may be exposed during operation. This poses a problem in particular for field devices used in the food industry, whose interchangeable components which come into contact with a process medium are often used at high temperatures, e.g. Temperatures of up to 100 ° C or even above, need to be cleaned.

It is an object of the invention to provide a data transfer system, with which data can be transmitted as error-free as possible to that field device for which the data are intended, and the esp. Without further ado is also applicable to sites where high standards of hygiene and cleanliness exist ,

• - einem Feldgerät, das einen geschlossenen, von außen zugänglichen Gehäusebereich mit einer für Funksignale transparente Gehäusewand umfasst, in dem eine Vorrichtung zum drahtlosen Auslesen eines Speichers eines Funk-Transponders eingeschlossen ist, und
• - einem am Feldgerät anbringbaren Funk-Transponder, insb. einem RFID-Transponder oder einem NFC-Transponder, mit einer Antenne, einer an die Antenne angeschlossenen Transponderschaltung und einem über die Antenne und die Transponderschaltung von der Vorrichtung des Feldgeräts drahtlos auslesbaren Speicher,

das sich dadurch auszeichnet, dass der Funk-Transponder Bestandteil eines von außen auf dem Gehäusebereich lösbar befestigbaren und nach dessen Befestigung wieder abziehbaren Datentransfermoduls, insb. eines auf den Gehäusebereich aufschiebbaren oder aufsteckbaren Datentransfermoduls, ist.To solve this problem, the invention comprises a data transfer system, with

• - A field device comprising a closed, externally accessible housing portion with a transparent housing for radio signals housing wall, in which a device for wireless readout of a memory of a radio transponder is included, and
• a radio transponder attachable to the field device, in particular an RFID transponder or an NFC transponder, having an antenna, a transponder circuit connected to the antenna and a memory which can be read out wirelessly by the device of the field device via the antenna and the transponder circuit,

This is characterized by the fact that the radio transponder is part of a detachable from the outside on the housing area and removable after its attachment data transfer module, esp. A slidable on the housing area or attachable data transfer module is.

The invention offers the advantage that the data transfer module for the purpose of data transfer between the memory of the radio transponder and the field device electronics in a very simple, fast and still be reliably mounted on the field device and just as quickly and easily removed after completion of the data transfer. The removal of the data transfer module has the advantage that during normal operation of the field device no impurities can accumulate on the data transfer module, and that the closed housing area can be cleaned from the outside, without the radio transponder can be damaged.

• - Formgebung und Abmessungen des Gehäusebereichs und des Datentransfermodul derart ausgebildet und aufeinander abgestimmt sind, dass das Datentransfermodul von außen auf dem Gehäusebereich befestigbar und nach dessen Befestigung wieder abziehbar ist,
• - wobei der Gehäusebereich insb.
  • -- ein Gehäusebereich eines Gehäuses eines stab- oder sondenförmigen Feldgeräts,
  • -- ein Endbereich eines die Feldgerätelektronik des Feldgeräts umschließenden Gehäuses,
  • -- ein an ein die Feldgerätelektronik des Feldgeräts umschließendes Gehäuse angrenzender, nach außen vorstehender, nach außen durch eine Stirnwand des Gehäusebereichs abgeschlossener Gehäusebereich, oder
  • -- ein von einer austauschbaren Komponente des Feldgeräts beabstandeter Gehäusebereich ist, und/oder
• - wobei das Datentransfermodul insb.
  • -- als ring- oder hülsenförmiges, auf den Gehäusebereich aufschiebbares Datentransfermodul ausgebildet ist,
  • -- als kappenförmiges, auf den Gehäusebereich aufsteckbares und im aufgesteckten Zustand eine Stirnseite des Gehäusebereichs überdeckendes Datentransfermodul ausgebildet ist, oder
  • -- einen ring- oder hülsenförmigen, auf den Gehäusebereich aufschiebbaren oder aufsteckbaren Modulbereich umfasst.

Preferred embodiments of the data transfer system are characterized in that

• Shaping and dimensions of the housing area and of the data transfer module are designed and matched to one another in such a way that the data transfer module can be fastened on the housing area from the outside and removed again after its attachment,
• - Wherein the housing area esp.
  • a housing region of a housing of a rod-shaped or probe-shaped field device,
  • an end region of a housing surrounding the field device electronics of the field device,
  • a housing area adjacent to a housing enclosing the field device electronics of the field device, outwardly projecting, closed to the outside by an end wall of the housing area, or
  • - Is a spaced from a replaceable component of the field device housing area, and / or
• - The data transfer module esp.
  • is designed as a ring-shaped or sleeve-shaped data transfer module which can be pushed onto the housing area,
  • - Is designed as a cap-shaped, attachable to the housing portion and in the plugged state, a front side of the housing portion overlapping data transfer module, or
  • - Includes a ring or sleeve-shaped, slidable or attachable to the housing portion module area.

• - die Vorrichtung des Feldgeräts eine in dem Gehäusebereich angeordnete Antenne aufweist, und
• - der Funk-Transponder im Inneren des Datentransfermoduls derart angeordnet ist, dass zumindest dessen Antenne unter einer für Funksignale transparenten Modulwand eingeschlossen ist, die an die Gehäusewand des Feldgeräts angrenzt, wenn das Datentransfermodul auf dem Gehäusebereich des Feldgeräts befestigt ist, oder als Aufkleber auf eine Innenseite eines Trägers aufgebacht ist, die an die für Funksignale transparente Gehäusewand des Feldgeräts angrenzt, wenn das Datentransfermodul auf dem Gehäusebereich befestigt ist,
• - wobei die Antenne der Vorrichtung und die Antenne des Funk-Transponders des Datentransfermodul insb. jeweils derart angeordnet sind, dass sie sich in einem Abstand von kleiner 5 cm, insb. von kleiner gleich 1 cm zueinander befinden, wenn das Datentransfermodul auf dem Gehäusebereich befestigt ist, und die Vorrichtung eine an die Größe des Abstands angepasste Reichweite, insb. eine Reichweite von 1 cm bis maximal 5 cm aufweist.

A further preferred embodiment is characterized in that

• the device of the field device has an antenna arranged in the housing region, and
• the radio transponder is arranged in the interior of the data transfer module in such a way that at least its antenna is enclosed under a module wall transparent to radio signals, which adjoins the housing wall of the field device, if the data transfer module is mounted on the housing area of the field device, or as a sticker on one Inner side of a carrier aufgeacht, which is adjacent to the radio signal transparent housing wall of the field device when the data transfer module is mounted on the housing portion,
• - Wherein the antenna of the device and the antenna of the radio transponder of the data transfer module esp. In each case are arranged so that they are at a distance of less than 5 cm, esp. Less than or equal to 1 cm to each other when the data transfer module mounted on the housing area is, and the device has a range adapted to the size of the distance, esp. A range of 1 cm to a maximum of 5 cm.

• - die Antenne des Funk-Transponders eine spiral- oder kreissegmentförmige Antenne ist,
• - die Antenne des Funk-Transponder in einem ring- oder hülsenförmigen, auf den Gehäusebereich aufschiebbaren Modulbereich angeordnet ist, der den Gehäusebereich im aufgeschobenen Zustand außenseitlich umgibt, und
• - die Vorrichtung des Feldgeräts eine in dem Gehäusebereich angeordnete Antenne umfasst, wobei die Antenne der Vorrichtung insb. als spiral- oder kreissegmentförmige Antenne ausgebildet ist, die koaxial zur Antenne des Funk-Transponders angeordnet ist, wenn das Datentransfermodul auf den Gehäusebereich aufgeschoben ist.

A first development is characterized by the fact that

• the antenna of the radio transponder is a spiral or circular segment-shaped antenna,
• - The antenna of the radio transponder is arranged in a ring-shaped or sleeve-shaped, slidable on the housing portion module portion surrounding the housing portion in the pushed state outside, and
• - The device of the field device comprises a disposed in the housing portion antenna, wherein the antenna of the device esp. As a spiral or circular segment-shaped antenna is arranged coaxially with the antenna of the radio transponder, when the data transfer module is pushed onto the housing portion.

• - das Datentransfermodul als kappenförmiges, auf den Gehäusebereich aufsteckbares und im aufgesteckten Zustand eine Stirnseite des Gehäusebereichs überdeckendes Datentransfermodul ausgebildet ist,
• - die Antenne des Funk-Transponders in einem, bei aufgestecktem Datentransfermodul die Stirnseite des Gehäusebereichs überdeckenden Modulbereich des Datentransfermoduls angeordnet ist, und
• - die Vorrichtung des Feldgeräts eine in dem Gehäusebereich angeordnete Antenne umfasst, wobei die Antenne der Vorrichtung insb. auf einer Innenseite der für Funksignale transparenten Gehäusewand der Stirnseite des Gehäusebereichs angeordnet ist.

A second development is characterized by the fact that

• the data transfer module is in the form of a cap-shaped data transfer module that can be plugged onto the housing area and, in the plugged-on state, covers an end face of the housing area,
• the antenna of the radio transponder is arranged in a module area of the data transfer module covering the front side of the housing area when the data transfer module is plugged in, and
• - The device of the field device comprises a disposed in the housing portion antenna, wherein the antenna of the device esp. On an inner side of the transparent housing for radio signals signal wall of the front side of the housing portion is arranged.

Another embodiment is characterized in that in the memory of the radio transponder Data are stored which comprise field device-specific data, application-specific data, parameters, configuration data and / or component-specific data of a replaceable component of the field device.

• - der Speicher des Funk-Transponder drahtlos auslesbar und drahtlos beschreibbar ist, und
• - die Vorrichtung des Feldgeräts eine Lese- und Schreibvorrichtung zum drahtlosen Auslesen und Beschreiben des Speichers des Funk-Transponders umfasst.

A third development is characterized by the fact that

• - The memory of the radio transponder wirelessly readable and wirelessly writable, and
• - The device of the field device comprises a read and write device for wireless reading and writing to the memory of the radio transponder.

A fourth development is characterized in that the data transfer module comprises a user interface equipped with a display, in particular with an unlit electronic paper display, and / or an input device, in particular a touch screen or a keyboard, whose operating circuit has access to the Memory of the radio transponder (25, 27) has stored data.

• - die Betriebsschaltung derart ausgebildet und an die Transponderschaltung angeschlossen ist, dass sie insgesamt oder zumindest anteilig von der Vorrichtung des Feldgeräts mit Energie versorgt werden kann, wenn das Datentransfermodul auf dem Gehäusebereich befestigt ist, und/oder
• - im Datentransfermodul eine Energiequelle, insb. eine Batterie, vorgesehen ist, die die Benutzeroberfläche insgesamt oder zumindest anteilig mit Energie versorgt und/oder
• - die Feldgerätelektronik eine induktive Schnittstelle umfasst, die zusammen mit einer induktiven Schnittstelle der Betriebsschaltung einen induktiven Übertrager bildet, über den die Benutzeroberfläche insgesamt oder zumindest anteilig mit Energie versorgt wird, während das Datentransfermodul auf dem Gehäusebereich befestigt ist.

A development of the fourth development is characterized by the fact that

• the operating circuit is designed and connected to the transponder circuit such that it can be supplied with power in its entirety or at least partially by the device of the field device when the data transfer module is mounted on the housing region, and / or
• - In the data transfer module, an energy source, esp. A battery is provided, which supplies the user interface total or at least proportionately with energy and / or
• - The field device electronics comprises an inductive interface, which forms an inductive transformer together with an inductive interface of the operating circuit, via which the user interface is supplied in total or at least proportionately with energy, while the data transfer module is mounted on the housing portion.

• - der an einen der Befestigung auf dem Gehäusebereich des Feldgeräts dienenden Modulbereich angeformt ist, und
• - der eine Grundfläche aufweist, die größer als eine Grundfläche eines Bereichs des der Befestigung auf dem Gehäusebereich dienenden Modulbereichs ist, an den sie angeformt ist.

A development of the fourth development or its further development is characterized in that the user interface is arranged in a module area of the data transfer module,

• - Is formed on one of the attachment on the housing portion of the field device serving module area, and
• - Has a base area which is greater than a base area of a portion of the mounting on the housing portion serving module area, to which it is formed.

A refinement of the data transfer system according to the third and fourth developments is characterized in that the user interface and the field device electronics are designed in such a way that the field device electronics communicate with the user interface via the device connected thereto on the data transfer module mounted on the housing region.

A fifth development of the invention is characterized in that the data transfer system at least one further field device of the same type and / or one with regard to attaching and subtracting the data transfer module from each field device and with regard to the data transfer between the radio transponder of the data transfer module and the Field device electronics of the respective field device for data transfer module compatible type includes on which the data transfer module can be used.

Furthermore, the invention comprises a use of a data transfer module of a data transfer system according to the fourth development as a transportable, temporarily applicable to each field device user interface for the field device of the data transfer system and / or for at least one further field device of the same design and / or with respect to the fastening and Subtracting the data transfer module from the respective field device and with regard to the data transfer between the radio transponder of the data transfer module and the field device electronics of the respective field device to the data transfer module compatible design.

• - das Datentransfermodul auf den Gehäusebereich des Feldgeräts befestigt wird,
• - mittels der Vorrichtung des Feldgeräts im Speicher des Datentransfermoduls abgespeicherte Daten, insb. feldgerät-spezifische Daten, anwendungsspezifische Daten, Parameter, Konfigurationsdaten, komponenten-spezifische Daten einer austauschbaren Komponente des Feldgeräts und/oder über eine Benutzeroberfläche des Datentransfermoduls an den Speicher übermittelte Daten, ausgelesen und an die Feldgerätelektronik übermittelt werden, und
• - das Datentransfermodul nach Abschluss des Datentransfers vom Feldgerät abgezogen wird.

Furthermore, the invention comprises a method for carrying out a data transfer between a field device and a data transfer module of a data transfer system according to the invention, which is characterized in that

• the data transfer module is mounted on the housing area of the field device,
• data stored by means of the device of the field device in the memory of the data transfer module, in particular field-device-specific data, application-specific data, parameters, configuration data, component-specific data of a replaceable component of the field device and / or data transmitted to the memory via a user interface of the data transfer module, read out and transmitted to the field device electronics, and
• - The data transfer module is removed from the field device after the data transfer has been completed.

• - mittels der Vorrichtung Daten vom Feldgerät an den Speicher des Funktransponders des Datentransfermoduls übermittelt werden, und
• - die vom Feldgerät übermittelten Daten mittels eines vom Feldgerät losgelösten Bedientools aus dem Speicher des Funktransponders ausgelesen werden, auf einem Display einer Bedieneinrichtung des Datentransfermoduls angezeigt werden, nach Abschluss des Datentransfers als in dem Datentransfermodul gespeicherte Daten an einen anderen Ort transportiert und dort mittels eines Lesegeräts ausgelesen werden, und/oder mittels des Datentransfermoduls an ein anderes Feldgerät übermittelt werden.

A development of this method for carrying out a data transfer between a field device and a data transfer module of a data transfer system according to the fourth development or according to the fourth and fifth developments is characterized in that

• - Are transmitted by the device data from the field device to the memory of the radio transponder of the data transfer module, and
• the data transmitted by the field device are read out of the memory of the radio transponder by means of an operating tool detached from the field device, displayed on a display of an operating device of the data transfer module, transported to a different location after completion of the data transfer as data stored in the data transfer module and there by means of a reading device be read out, and / or transmitted by means of the data transfer module to another field device.

• 1 zeigt: ein Datentransfersystem mit einem Feldgerät und einem ring- oder hülsenförmigen Datentransfermodul;
• 2 zeigt: ein Datentransfersystem mit einem Feldgerät und einem kappenförmigen Datentransfermodul;
• 3 zeigt: ein Datentransfersystem mit einer alternativen Ausführungsform eines Feldgerät und einem kappenförmigen Datentransfermodul;
• 4 zeigt: eine Schnittzeichnung des Datentransfersystem von 1;
• 5 zeigt: eine Draufsicht auf das Datentransfermodul von 2 und 3;
• 6 zeigt: ein Datentransfersystem mit einem Feldgerät und einer alternativen Ausführungsform eines kappenförmigen Datentransfermoduls; und
• 7 zeigt: eine Schnittzeichnung einer alternativen Ausführungsform eines Datentransfermoduls.

The invention and further advantages will now be explained in more detail with reference to the figures of the drawing, in which five embodiments are shown; the same elements are provided in the figures with the same reference numerals.

• 1 shows: a data transfer system with a field device and a ring-shaped or sleeve-shaped data transfer module;
• 2 shows: a data transfer system with a field device and a cap-shaped data transfer module;
• 3 shows: a data transfer system with an alternative embodiment of a field device and a cap-shaped data transfer module;
• 4 shows: a sectional drawing of the data transfer system of 1 ;
• 5 shows: a plan view of the data transfer module of 2 and 3 ;
• 6 shows: a data transfer system with a field device and an alternative embodiment of a cap-shaped data transfer module; and
• 7 Fig. 3 shows a sectional drawing of an alternative embodiment of a data transfer module.

The embodiments of data transfer systems according to the invention shown in the figures each comprise a field device 1 . 3 . 5 , which has a closed, externally accessible housing area 7 . 9 . 11 comprising a housing transparent to radio signals housing wall 13 . 15 . 17 includes, and in the one to a field device electronics 19 of the field device 1 . 3 . 5 connected device 21 . 23 for wireless reading of a memory of a radio transponder is included.

In addition, they each include one on each field device 1 . 3 . 5 attachable radio transponder 25 . 27 with an antenna 29 . 31 , one to the antenna 29 . 31 connected transponder circuit 33 and one over the antenna 29 . 31 and the transponder circuit 33 from the device 21 . 23 of the field device 1 . 3 . 5 readable memory.

For this purpose, preferably known from the prior art transmission standards for wireless data transmission, such as under the name Radio Frequency Identification (RFID) or under the name Near Field Communication (NFC) known standards. As a radio transponder 23 . 25 For example, known from the prior art RFID transponder or NFC transponder can be used. As devices 21 . 23 For reading out the memories of these radio transponders, devices known from the prior art can be used which comprise a reading device for reading out the memories of these transponders. As a radio transponder 23 . 25 esp. Passive RFID or NFC transponder, which are of the device 21 . 23 of the field device 1 . 3 . 5 be powered wirelessly.

According to the invention, these are radio transponders 23 . 25 each as part of a on the outside of the respective housing area 7 . 9 . 11 releasably attachable and after its attachment from the housing area 7 . 9 . 11 of the respective field device 1 . 3 . 5 again removable data transfer module 35 . 37 . 39 . 41 educated. Here are the data transfer modules 35 . 37 . 39 . 41 preferably as on the housing area 7 . 9 . 11 of the associated field device 1 . 3 . 5 slide-on or attachable data transfer modules 35 . 37 . 39 . 41 educated.

These are the shape and dimensions of the housing area 7 . 9 . 11 and the data transfer module 35 . 37 . 39 . 41 preferably designed and matched to one another such that the data transfer module 35 . 37 . 39 . 41 from the outside to the housing area 7 . 9 . 11 can be postponed or plugged and then withdrawn again. Alternatively, however, other releasable attachment forms can be used.

Data transfer systems according to the invention offer the advantage that the data transfer module 35 . 37 . 39 . 41 for the purpose of a data transfer between the memory of the radio transponder 25 . 27 and the field device electronics 19 in a very simple, fast and yet reliable way temporarily on the field device 1 . 3 . 5 fixed and can be withdrawn just as quickly and easily after completion of the data transfer. The removal of the data transfer module 35 . 37 . 39 . 41 offers the advantage of being during regular operation of the field device 1 . 3 . 5 no impurities on the data transfer module 35 . 37 . 39 . 41 can accumulate, as well as that the closed housing area 7 . 9 . 11 can be cleaned from the outside without the radio transponder 25 . 27 this will damage it.

In contrast to known from the prior art known detached from the field device operating tools that are always located at some distance from the field device during data transmission, the data transfer module 35 . 37 . 39 . 41 a data transfer system according to the invention for data transmission directly on the field device 1 . 3 . 5 appropriate. This ensures that the radio transponder 25 . 27 of the data transfer module 35 . 37 . 39 . 41 at a much shorter distance to the device 21 . 23 of the field device 1 . 3 . 5 than any other possible near the field device 1 . 3 . 5 located radio transponder. This is a clear assignment between field device 1 . 3 . 5 and data transfer module 35 . 37 . 39 . 41 given without further measures.

Data transfer systems according to the invention can be used in the memory of the respective radio transponder 25 . 27 stored data to the respective field device 1 . 3 . 5 to convey. For this purpose, preferably such method that the data transfer module 35 . 37 . 39 . 41 on the housing area 7 . 9 . 11 of the field device 1 . 3 . 5 is attached, the data from the device 21 . 23 of the field device 1 . 3 . 5 read out and to the field device electronics 19 be transmitted and the data transfer module 35 . 37 . 39 . 41 after completion of the data transfer from the field device 1,3, 5 is deducted.

In the memory of the respective radio transponder 25 . 27 saved to the field device 1 . 3 . 5 Data to be transmitted, eg for the operation of the field device 1 . 3 . 5 field-specific and / or application-specific data, parameters and / or configuration data required at a place of use. Examples of this in measurement technology are also measuring point information called TAG, a field device 1 . 3 . 5 allocated communication user address, eg a fieldbus address, limit values for one from the field device 1 . 3 . 5 Size to be measured, the achievement of which is to be monitored by the field device 1, 3, 5, and a specific procedure of the field device 1, 3, 5 in the event of a fault.

The in the 1 . 2 . 3 and 6 illustrated field devices 1 . 3 . 5 each have a replaceable component 43 on.

1 shows as a possible example a rod or probe-shaped field device 1 , such as a sensor or a probe, the one end of a connecting cable 45 for connection of the field device 1 to a parent unit, not shown here, for example, a transmitter, and at the other end of the interchangeable component 43 is arranged. This can be a component, for example 43 be comprising a membrane of an electrochemical sensor. In this example, the in 4 shown sectional drawing of the data transfer system of 1 illustrated field device electronics 19 eg one in the rod-shaped or probe-shaped housing of the field device 1 enclosed sensor electronics and / or a measuring circuit.

At the in 2 illustrated field device 3 it may be, for example, a transmitter to which a sensor is connected, which is the interchangeable component 43 includes. In that case the field device electronics comprises 19 a transmitter electronics, which may be additionally connected to a measuring circuit not shown here or a sensor electronics of the sensor.

At the in 3 illustrated field device 5 it may be, for example, a sensor equipped with a sensor whose sensor is the interchangeable component 43 includes.

In connection with field devices 1 . 3 . 5 containing a replaceable component 43 can, the data transfer module 35 . 37 . 39 . 41 alternatively or additionally to the transmission of field device and / or application-specific data, parameters and / or configuration data are used for the operation of the respective component 43 from the field device 1 . 3 . 5 needed, in the memory of the data transfer module 35 . 37 . 39 . 41 stored component-specific data to the field device 1 . 3 . 5 to convey.

In that case the components can 43 eg together with one of the respective components 43 assigned data transfer module 35 . 37 . 39 . 41 be delivered in whose memory that to the respective component 43 associated component-specific data are stored. For field devices 1 . 3 . 5 with replaceable component 43 is preferably such method that the component 43 is exchanged, the data transfer module 35 . 37 . 39 . 41 on the housing area 7 . 9 . 11 attaching the component-specific data stored in the memory from the device 21 . 23 be read out and the data transfer module 35 . 37 . 39 . 41 subsequently withdrawn again. It is ensured that the data to that field device 1 . 3 . 5 for which they are intended, without the data being within the interchangeable component 43 must be arranged. This also enables component-specific data of components 43 reliable to that field device 1 . 3 . 5 be transmitted for the they are intended, their components 43 too small to be equipped with a readable memory module.

For field devices 1 . 3 . 5 with replaceable component 43 is the housing area 7 . 9 . 11 on which the data transfer module 35 . 37 . 39 . 41 is fastened, preferably in one of the component 43 spaced area of the field device 1 . 3 . 5 arranged. This offers the advantage that the housing area 7 . 9 . 11 , as well as the data transfer module attached if necessary 35 . 37 . 39 . 41 even then protected from higher temperatures acting on it, if the on the field device 1 . 3 . 5 attached component 43 is exposed to relatively high temperatures.

In data transfer systems according to the invention, it is of course also possible to use field devices which do not have a replaceable component 43 exhibit. In that case, the component shown in the figures is omitted 43 ,

The functionality of data transfer systems according to the invention can optionally be extended by the fact that the memory of the radio transponder 25 . 27 is formed as a wireless readable and writable memory, and in the field device 1 . 3 . 5 provided device 21 . 23 for reading out the radio transponder 25 . 27 not only as a pure reading device, but as a reading and writing device for wireless reading and writing to the memory of the radio transponder 25 . 27 is trained.

This embodiment offers the additional advantage that the field device 1 . 3 . 5 by means of the field device electronics 19 connected device 21 . 23 Data, such as measuring point and / or application-specific data, such as a measuring point designation, a fieldbus address or configuration data, from the field device 1 . 3 . 5 For example, recorded in the form of a logbook in operation data, such as diagnostic results, events such as error messages, and / or at fixed times or at predetermined intervals recorded measurements, a calibration history of a sensor and / or currently in the field device 1 . 3 . 5 stored parameters, eg a parameterization of a transmitter, to the memory of the radio transponder 25 . 27 can write, which can then either directly suburb, eg by means of a detached from the field device operating tool can be read from the memory, or as in the data transfer module 35 . 37 . 39 . 41 stored data can be transported to another location, for example, to a process control center, where they can then be read by means of a corresponding reader. In addition, the data transfer module 35 . 37 . 39 . 41 Also used to data on another identical or with regard to the attachment of the data transfer module 35 . 37 . 39 . 41 and the data transfer between the radio transponder 25 . 27 and a field device electronics of the other field device to the data transfer module 35 . 37 . 39 . 41 compatible field device. This can, for example, when replacing one of the illustrated field devices 1 . 3 . 5 be advantageous against a corresponding replacement device. In this case, before the exchange, data from the field device 1 . 3 . 5 to the data transfer module 35 . 37 . 39 . 41 be transmitted, then by means of the data transfer module 35 . 37 . 39 . 41 be transmitted to the replacement device. In particular, measuring point and / or application-specific data, such as a measuring point designation or a field bus address, can be transmitted to the replacement device in a simple and fast manner.

In data transfer systems according to the invention, data transfer modules 35 . 37 . 39 . 41 different shapes are used, the shape of each such on the shape of the housing area 7 . 9 . 11 is tuned that the data transfer module 35 . 37 . 39 . 41 from the outside on the associated housing area 7 . 9 . 11 attached and can be deducted after completion of the data transfer again.

1 shows a first variant in which the data transfer module 35 as a sleeve or ring-shaped data transfer module 35 is formed, the so on the housing area 7 of the field device 1 slidable is that he the housing area 7 outside on all sides. In this embodiment, the housing portion 7 a portion of the rod or probe-shaped housing of the field device 1 to which the data transfer module 35 is postponed.

2 and 3 show a second variant in which the data transfer module 37 as a cap-shaped on the housing area 9 . 11 of the field device 3 . 5 attachable data transfer module 37 is trained. In this variant, the data transfer module includes 37 one of the mechanical attachment of the cap on the housing area 9 . 11 serving module area 47 and a module area formed thereon and forming a cap lid 49 , In this case, the module area serving for the attachment 47 For example, be designed as a ring or sleeve-shaped area, which is the housing area 9 . 11 with attached data transfer module 37 surrounds the outside, while the cap area forming module area 49 an externally accessible, the housing area 9 . 11 outwardly terminating end wall of the housing portion 9 . 11 covered.

In this case, the housing area 9 . 11 at different locations of the field device 3 . 5 be provided. 2 shows an embodiment in which the housing portion 9 an end area one is the field device electronics 19 of the field device 3 enclosing housing 51 is. At the in 3 illustrated embodiment, the housing portion 11 one to the the field device electronics 19 of the field device 5 enclosing housing 51 adjacent outwardly projecting housing area 11 passing through the front wall of the housing area 11 closed to the outside.

Data transfer modules may comprise, for example, a carrier having the basic shape desired for the module, on the inside of which the radio transponder is applied as a sticker. In this case, the sticker on the inside of the carrier to be attached to the transparent housing for radio signals housing wall 13 . 15 . 17 of the field device adjacent when the data transfer module on the housing area 7 . 9 . 11 is attached. This embodiment offers the advantage of very low production costs and is particularly useful if the data transfer module is used as a disposable item, which is disposed of after completion of the data transfer.

Preferably, the radio transponder 25 . 27 however, as shown here, within the data transfer module 35 . 37 . 39 . 41 arranged. Regardless of the shape of the respective data transfer module 35 . 37 . 39 . 41 is the radio transponder 25 . 27 in the case preferably in the data transfer module 35 . 37 . 39 . 41 arranged that at least its antenna 29 . 31 under a transparent to radio signals module wall of the data transfer module 35 . 37 . 39 . 41 is included, which is attached to the housing wall 13 . 15 . 17 of the field device 1 . 3 . 5 adjoins when the data transfer module 35 . 37 . 39 . 41 on the housing area 7 . 9 . 11 of the field device 1 . 3 . 5 is attached.

4 shows a section through the data transfer system of 1 in the in 1 with AA 'designated cutting plane. In this embodiment, the antenna is 31 the radio transponder 27 preferably as a spiral or circular segment-shaped antenna 31 formed the housing area 7 outside surrounds when the data transfer module 35 on the housing area 7 of the field device 1 is deferred. In this embodiment, the device 23 of the field device 1 one inside the here of the housing wall 17 outside surrounded housing area 7 arranged antenna 53 on. Preferably, the antenna is also 53 the device 23 as a spiral or circular segment-shaped antenna 53 educated. Here are the two antennas 31 . 53 Preferably arranged such that they are arranged coaxially with each other when the data transfer module 35 on the housing area 7 is deferred. In addition, the antenna 53 the device 23 preferably directly on or at least a short distance from an inner circumferential surface of the housing wall 17 of the housing area 7 arranged. None of these measures is mandatory. However, they offer individually, as well as in combination with each other the additional advantage that the two antennas 31 . 53 in almost all perpendicular to the longitudinal axis of the data transfer module 35 extending directions are located at a small distance from each other.

In the embodiments of 2 and 3 is the radio transponder 25 preferably in each case in the module area comprising the cap lid 49 locked in. Also in these embodiments, the device 21 of the respective field device 3 . 5 preferably an antenna 55 on, immediately on the inside of the transparent housing wall 13 . 15 of the respective field device 3 . 5 or at least arranged at a slight distance therefrom. Here is the housing wall 13 . 15 here an end wall of the housing area 9 . 11 that abuts the cap lid when the data transfer module 37 on the housing area 9 . 11 is plugged.

Attaching the antenna 53 . 55 the device 21 . 23 directly on or at least a short distance from the housing wall 13 . 15 . 17 offers the additional advantage that this case in the housing area 7 . 9 . 11 comparatively little space is needed, which esp. in field devices 1 . 3 . 5 small size is an advantage.

Regardless of the shape of housing area 7 . 9 . 11 and data transfer module 35 . 37 . 39 . 41 are the antennas 53 . 55 the device 21 . 23 and the radio transponder 25 . 27 preferably each arranged such that they are at a distance of less than 5 cm, preferably even less than or equal to 1 cm, to each other when the data transfer module 35 . 37 . 39 . 41 on the housing area 7 . 9 . 11 is attached. Then, for the data transfer devices 21 . 23 with a correspondingly short range adapted to the distance, in particular with a range of 1 cm to a maximum of 5 cm. In terms of a short range are the radio transponder 25 . 27 preferably as an NFC transponder and the devices 21 . 23 as for reading these NFC transponder suitable devices 21 . 23 designed with a correspondingly short range.

A short range ensures, on the one hand, that the device 21 . 23 of the field device 1 . 3 . 5 is not in the position if necessary in the vicinity of the field device 1 . 3 . 5 existing radio transponders of the same type. In addition, the small distance offers the advantage that the smaller the distance over which the data is transmitted, the less energy is required for the data transfer. The latter is esp. For field devices advantageous for their energy supply in total only a limited power is available. These include, for example, in the industry as 2-wire measuring devices designated field devices that are supplied via a single pair of wires with energy through which they also spend a determined by the field device measurement. For industry, a standard has developed for these field devices in which these field devices are each supplied with a supply voltage of predetermined size via the line pair and set the current flowing over the line pair to a signal current reproducing the measured variable detected by the field device. The supply voltage in normal operation is usually 12 V and the signal current varies depending on the value of the detected variable between 4 mA and 20 mA. If an error occurs in such a 2-wire measuring device, it is normally displayed by the device in such a way that the signal current from the device is set to a value prescribed for this purpose in the usual way 3 , 6 mA. In this case, only 43.2 mW are available for the 2-wire meter.

In addition, the functionality of data transfer systems according to the invention can optionally be extended by virtue of their data transfer module 37 . 39 . 41 with a user interface with a display 57 and / or an input device 59 equipped, whose operating circuit 61 Access to the memory of the radio transponder 25 . 27 has stored data.

As a display 57 Particularly suitable are unlit, under the name of electronic-paper display (E-paper display) known display devices, as they are already used in e-book readers today. E-paper displays have the advantage of low energy consumption because they only need energy to change but not to maintain a displayed text or image. As input device 59 eg a touchscreen, a keyboard or keys are suitable.

Here is the operating circuit 61 the user interface preferably designed and to the transponder circuit 33 connected to them in total or at least partially by means of the device 21 . 23 of the field device 1 . 3 . 5 wirelessly to the radio transponder 25 . 27 transmitted energy can be operated. Alternatively and / or additionally, in the data transfer module 37 . 39 . 41 an energy source 63 , esp. A battery, be provided, which supplies the user interface in total or at least proportionately with energy.

5 shows a plan view of the cap lid of the data transfer module 37 from 3 on the outside of a user interface with a display 57 and an input device 59 is provided. In this plan view are also included in the cap lid components of the data transfer module 37 shown as dashed objects. These components include the antenna 29 , the transponder circuit comprising the memory connected thereto 33 and both to the transponder circuit 33 as well as to the display 57 and the input device 59 connected operating circuit 61 , as well as the optionally alternatively or additionally providable energy source 63 ,

Alternatively or additionally, the field device electronics 19 an inductive interface L1, which together with an inductive interface L2 of the operating circuit 61 forms an inductive transformer through which the operating circuit 61 can be supplied with energy in total or at least proportionately, while the data transfer module 37 on the housing area 9 is attached. This optional embodiment is in 2 shown. There, the inductive interfaces L1, L2 each comprise an inductance, which forms the inductive transformer together with the inductance of the respective other interface L2, L1. This embodiment can also be used analogously in the other exemplary embodiments of data transfer systems according to the invention.

The user interface is preferably in a module area 49 . 65 . 67 of the respective data transfer module 37 . 39 . 41 arranged on one of the attachment of the data transfer module 37 . 39 . 41 on the housing area 7 . 9 . 11 serving module area 47 . 69 of the data transfer module 37 . 39 . 41 is formed. This embodiment offers the advantage that the footprint of the UI-equipped module area 49 . 65 . 67 not by the dimensions of the attachment to the housing area 7 . 9 . 11 serving module area 49 . 65 . 67 is limited.

The base area of the module area equipped with the user interface can be 49 substantially equal to the footprint of the region of the mounting module portion 47 to which it is molded. This embodiment is in 2 and 3 shown. There is the user interface in the Mobulbereich forming the cap lid 49 arranged, the base surface substantially equal to the base of the cap lid supporting sleeve or annular module portion 47 is.

Alternatively, the footprint of the UI-equipped module area 65 . 67 but also larger than the footprint of the area of the attachment to the housing area 7 . 9 be serving module portion 46, 49, to which it is formed. This offers the advantage that more space is available for the accommodation of the user interface, so that accordingly larger user interfaces can be used. The latter offers the advantage that via the data transfer module 39 . 41 also field devices 1 . 3 be temporarily equipped with a user-friendly interface that is too small to be equipped with its own user interface.

6 shows an embodiment of a data transfer system, which differs from the in 2 illustrated embodiment differs in that the on the ring or sleeve-shaped, the attachment to the housing area 9 serving module area 47 molded module area 65 has a base area which is significantly larger than the base area of the area of the annular or sleeve-shaped module area 47 is, to which he is molded.

7 shows a sectional drawing of another embodiment of a data transfer module 41 , This data transfer module 41 is different from the one in 1 illustrated data transfer module 35 in that to the annular or sleeve-shaped module area 69 of the data transfer module 35 from 1 on the outside, an additional module area equipped with the operating device 67 is formed. This module area 67 is formed in the embodiment shown here as a substantially disc-shaped region.

At the in 6 and 7 illustrated data transfer modules 39 . 41 can be the UI-wide module space 67 . 69 seen in the plan view respectively in 5 have shown basic structure.

In connection with data transfer systems according to the invention, their radio transponder 25 . 27 only includes a wireless readable but not wirelessly writable memory, the user interface can eg be used to individual or all stored in the memory data in a fixed manner, for example, in a predetermined order, or in one via the input device 59 selectable way on the display 57 display.

In connection with data transfer systems according to the invention, their radio transponder 25 . 27 a wirelessly readable and wireless writable memory, and their device 21 . 23 is designed as a reading and writing device, the user interface as a full user interface of the field device 1 . 3 . 5 can be used, via the radio transponder 25 . 27 with the field device electronics 19 of the field device 1 . 3 . 5 communicated.

Data transfer systems according to the invention can be used in addition to the field device described here in each case 1 . 3 . 5 additional field devices 1 . 3 . 5 of the same type and / or other field devices with regard to the attachment and detachment of the data transfer module 35 . 37 . 39 . 41 from the respective field device and with regard to the data transfer between radio transponders 25 . 27 and the field device electronics of the respective field device to the data transfer module 35 . 37 . 39 . 41 compatible type, on which the data transfer module 35 . 37 . 39 . 41 can be used. In this case, the data transfer module 35 . 37 . 39 . 41 be used to transmit identical records sequentially to multiple field devices. Alternatively, different data sets can be transmitted to different field devices by exchanging the data stored in the memory after each use against the data intended for the subsequent field device.

With a user interface equipped data transfer modules 37 . 39 . 41 In addition, they can also be used as transportable, temporarily usable on a respective field device user interface for the aforementioned field devices.

LIST OF REFERENCE NUMBERS

1

field device

3

field device

5

field device

7

housing area

9

housing area

11

housing area

13

housing wall

15

housing wall

17

housing wall

19

Field device electronics

21

contraption

23

contraption

25

Radio transponder

27

Radio transponder

29

antenna

31

antenna

33

transponder circuit

35

Data transfer module

37

Data transfer module

39

Data transfer module

41

Data transfer module

43

exchangeable component

45

connecting cable

47

module area

49

module area

51

casing

53

antenna

55

antenna

57

display

59

input device

61

operating circuit

63

energy

65

module area

67

module area

69

module area

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 1020011084789 A1 [0008]
• DE 102011088012 A1 [0012]

Claims (15)

Data transfer system, comprising - a field device (1, 3, 5) comprising a closed, externally accessible housing portion (7, 9, 11) with a transparent housing for radio signals housing wall (13, 15, 17), in which one to a field device electronics (19) connected device (21, 23) for wireless reading of a memory of a radio transponder is included, and - a radio transponder (25, 27) attachable to the field device (1, 3, 5), esp. An RFID transponder or an NFC transponder, with an antenna (29, 31), a transponder circuit (33) connected to the antenna (29, 31) and an antenna (29, 31) and the transponder circuit (33) of the device (21 , 23) of the field device (1, 3, 5) wirelessly readable memory, characterized in that - the radio transponder (25, 27) part of an externally on the housing portion (7, 9, 11) detachably fastened and after its attachment from the housing area (7, 9, 11) deductible Datenentransf ermoduls (35, 37, 39, 41), in particular a on the housing portion (7, 9, 11) can be pushed or plugged data transfer module (35, 37, 39, 41). Data transfer system according to Claim 1 , characterized in that - shape and dimensions of the housing portion (7, 9, 11) and the data transfer module (35, 37, 39, 41) are designed and matched to one another that the data transfer module (35, 37, 39, 41) of outside on the housing portion (7, 9, 11) attachable and after its attachment is again removable, - wherein the housing portion (7,9, 11) esp. - A housing portion (7) of a housing of a rod or probe-shaped field device (1 ), - an end region of a housing (51) enclosing the field device electronics (19) of the field device (3), - a housing (51) bordering the field device electronics (19) of the field device (5) and projecting outwards is a housing area (11) closed off from the outside by an end wall of the housing area, or - a housing area (7, 9, 11) spaced from an exchangeable component (43) of the field device (1,3, 5), and / or - wherein the data transfer module (35, 37, 39, 41) esp. - in the form of a ring-shaped or sleeve-shaped data transfer module (35) which can be pushed onto the housing area (7), as a cap-shaped data transfer module (9, 11) which can be plugged onto the housing area (9, 11) and which is in the plugged-on state of an end face of the housing area (9, 11). 37, 39, 41) is formed, or - a ring-shaped or sleeve-shaped, on the housing portion (7, 9, 11) can be pushed or plugged module portion (47, 69). Data transfer system according to one or more of the preceding claims, characterized in that - the device (21, 23) of the field device (1, 3, 5) has an antenna (53, 55) arranged in the housing region (7, 9, 11), and - the radio transponder (25, 27) is arranged in the interior of the data transfer module (35, 37, 39, 41) in such a way that at least its antenna (29, 31) is enclosed under a module wall which is transparent to radio signals and which faces the housing wall (13, 15, 17) of the field device (1, 3, 5) adjacent when the data transfer module (35, 37, 39, 41) on the housing portion (7, 9, 11) of the field device (1, 3, 5) attached is or as sticker on an inside of a carrier gebacht which is adjacent to the radio signals transparent housing wall (13, 15, 17) of the field device when the data transfer module is mounted on the housing portion, - wherein the antenna (53, 55) of the Device (21, 23) and the antenna (29, 31) of the radio transponder of Datentran in particular are each arranged such that they are at a distance of less than 5 cm, in particular of less than or equal to 1 cm, to one another when the data transfer module (35, 37, 39, 41 ) is mounted on the housing portion (7, 9, 11), and the device (21, 23) has a range adapted to the size of the distance, in particular a range of 1 cm to a maximum of 5 cm. Data transfer system according to Claim 1 - 3 , characterized in that - the antenna (31) of the radio transponder (27) is a spiral or circular segment-shaped antenna (31), - the antenna of the radio transponder (27) in a ring-shaped or sleeve-shaped module region (69) which can be pushed onto the housing region (7) ), which externally surrounds the housing region (7) in the pushed - on state, and - the device (23) of the field device (1) comprises an antenna (53) arranged in the housing region (7), wherein the antenna (53) of the device (53) esp. As a spiral or circular segment-shaped antenna (53) is formed, which is arranged coaxially with the antenna (31) of the radio transponder (27) when the data transfer module (35, 41) is pushed onto the housing portion (7) , Data transfer system according to Claim 1 - 3 , characterized in that - the data transfer module (37, 39) is in the form of a cap-shaped data transfer module (37, 39, 41) which can be plugged onto the housing region (9, 11) and, in the plugged-on state, covers one end side of the housing region (9, 11), the antenna (31) of the radio transponder (27) is arranged in a module area (49, 65) of the data transfer module (37, 39) covering the front side of the housing area (9, 11) when the data transfer module (37, 39) is plugged in, and - the device (21) of the field device (3, 5) comprises an antenna (55) arranged in the housing region (9, 11), wherein the antenna (53) of the device (53) is in particular on an inner side of the transparent to radio signals Housing wall (13, 15) of the end face of the housing portion (9, 11) is arranged. Data transfer system according to one or more of the preceding claims, characterized in that in the memory of the radio transponder (25, 27) data is stored, the field device-specific data, application-specific data, parameters, configuration data and / or component-specific data of a interchangeable component (43) of the field device (1, 3, 5). Data transfer system according to one or more of the preceding claims, characterized in that - the memory of the radio transponder (25, 27) is wirelessly readable and wirelessly writable, and - the device (21, 23) of the field device (1, 3, 5) a reading and writing device for wireless reading and writing to the memory of the radio transponder (25, 27). Data transfer system according to one or more of the preceding claims, characterized in that the data transfer module (37, 39, 41) has a display (57), in particular with an unlit electronic paper display, and / or an input device (59), esp. Includes a touch screen or keyboard, equipped user interface whose operation circuit (61) has access to stored in the memory of the radio transponder (25, 27) data. Data transfer system according to Claim 8 characterized in that - the operating circuit (61) is designed and connected to the transponder circuit (33) such that it can be supplied with power in its entirety or at least partially by the device (29, 31) of the field device if the data transfer module (37, 39, 41) is fastened to the housing region (35, 37, 39, 41), and / or - in the data transfer module (35, 37, 39, 41) an energy source (63), in particular a battery, is provided, which the User interface in total or at least partially supplied with energy, and / or - the field device electronics (19) comprises an inductive interface (L1), which forms an inductive transformer together with an inductive interface (L2) of the operating circuit (61) via which the user interface as a whole or at least partially powered, while the data transfer module (37) is mounted on the housing portion (9). Data transfer system according to Claim 8 or 9 in that the user interface is arranged in a module region (65, 67) of the data transfer module (39, 41), which serves for attachment to the housing region (7, 9, 11) of the field device (1, 3, 5) Module area (47, 69) is integrally formed, and - having a base area which is greater than a base area of a portion of the mounting on the housing portion (7, 9) serving module portion (47, 69), to which it is integrally formed. Data transfer system according to Claim 7 and one or more of Claims 8 - 10 , characterized in that the user interface and the field device electronics (19) are designed such that the field device electronics (19) mounted on the housing portion (7, 9, 11) data transfer module (37, 39, 41) via the device connected thereto (21, 23) communicates with the user interface. Data transfer system according to Claim 1 - 11 , characterized in that the data transfer system at least one further field device (1, 3, 5) of the same type and / or one with regard to attaching and subtracting the data transfer module (35, 37, 39, 41) from the respective field device and with regard to the data transfer between the radio transponder (25, 27) of the data transfer module (35, 37, 39, 41) and the field device electronics of the respective field device to the data transfer module (35, 37, 39, 41) compatible type comprises, on which the data transfer module (35, 37 , 39, 41) can be used. Use of a data transfer module (37, 39, 41) of a data transfer system according to Claim 8 - 11 as a transportable, temporarily on each field device usable user interface for the field device (1, 3, 5) of the data transfer system and / or for at least one further field device of the same type and / or with respect to the attachment and detachment of the data transfer module (35, 37 , 39, 41) of the respective field device and with regard to the data transfer between the radio transponder (25, 27) of the data transfer module (35, 37, 39, 41) and the field device electronics of the respective field device to the data transfer module (35, 37, 39 , 41) compatible design. Method for carrying out a data transfer between a field device (1, 3, 5) and a data transfer module (35, 37, 39, 41) of a data transfer system according to one or more of Claims 1 - 12 , characterized in that - the data transfer module (35, 37, 39, 41) is fastened to the housing region (7, 9, 11) of the field device (1, 3, 5), by means of the device (21, 23) of the field device (1, 3, 5 ) data stored in the memory of the data transfer module (35, 37, 39, 41), in particular field device-specific data, application-specific data, parameters, configuration data, component-specific data of a replaceable component (43) of the field device (1, 3, 5) and / or via a user interface of the data transfer module (37, 39, 41) to the memory data transmitted, read and transmitted to the field device electronics (19), and - the data transfer module (35, 37, 39, 41) after completion of Data transfers from the field device (1,3, 5) is deducted. Method according to Claim 14 for carrying out a data transfer between a field device (1, 3, 5) and a data transfer module (35, 37, 39, 41) according to a data transfer system Claim 7 - 11 or according to Claim 7 and 12 , characterized in that - by means of the device (21, 23) data from the field device (1, 3, 5) to the memory of the radio transponder (25, 27) of the data transfer module (35, 37, 39, 41) are transmitted, and - the data transmitted by the field device (1, 3, 5) are read out of the memory of the radio transponder (25, 27) by means of a control tool detached from the field device (1, 3, 5), on a display (59) of an operating device of the data transfer module (37 , 39, 41) are displayed, after completion of the data transfer as in the data transfer module (35, 37, 39, 41) stored data transported to another location and read there by means of a reader, and / or by means of the data transfer module to another field device be transmitted.

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