DE29917651U1 - Transmitter and process control system - Google Patents

Transmitter and process control system

Info

Publication number
DE29917651U1
DE29917651U1 DE29917651U DE29917651U DE29917651U1 DE 29917651 U1 DE29917651 U1 DE 29917651U1 DE 29917651 U DE29917651 U DE 29917651U DE 29917651 U DE29917651 U DE 29917651U DE 29917651 U1 DE29917651 U1 DE 29917651U1
Authority
DE
Germany
Prior art keywords
current signal
measured value
transmitter
distinguishable
failure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE29917651U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DE29917651U priority Critical patent/DE29917651U1/en
Publication of DE29917651U1 publication Critical patent/DE29917651U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/08—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (4)

1. Meßumformer, der zur Versorgung mit der zum Betrieb erforderlichen Energie und zur Übertragung eines einen Meßwert darstellenden Stromsignals (I) an zumindest eine Zweidrahtleitung (2) anschließbar ist, wobei Diagnosemittel (10, 12, 13, 20) vorgesehen sind zur Feststellung, ob der Meßumformer (1) gut arbeitet, ausgefallen ist oder einer Wartung bedarf, und wobei Mittel (9, 10, Rs, T) vorgesehen sind, um im "Gut"-Zustand ein den Meßwert darstellendes Stromsignal, bei Ausfall statisch ein von einem Meßwert unterscheidbares Stromsignal und bei Wartungsbedarf derart kurzzeitig ein von einem Meßwert unterscheidbares Stromsignal auszugeben, daß es von dem statischen Stromsignal, das bei Ausfall ausgegeben wird, unterscheidbar ist.1. Transmitter which can be connected to at least one two-wire line ( 2 ) to supply the energy required for operation and to transmit a current signal (I) representing a measured value, diagnostic means ( 10 , 12 , 13 , 20 ) being provided for determining, whether the transmitter ( 1 ) is working well, has failed or requires maintenance, and wherein means (9, 10, Rs, T) are provided for a current signal representing the measured value in the "good" state, statically one of one in the event of failure Measured value distinguishable current signal and, if maintenance is required, briefly output a current signal distinguishable from a measured value in such a way that it can be distinguished from the static current signal which is output in the event of a failure. 2. Meßumformer nach Anspruch 1, dadurch gekenn­ zeichnet, daß bei Wartungsbedarf ein Stromsignal ausgebbar ist, das periodisch zwischen einem von einem Meß­ wert unterscheidbaren und einem einen Meßwert darstellenden Stromsignal wechselt.2. Transmitter according to claim 1, characterized records that a current signal when maintenance is required is output periodically between one of a measurement value distinguishable and a measured value Current signal changes. 3. Meßumformer nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein Meßwert durch ein Strom­ signal in einem Wertebereich zwischen 4 mA und 20 mA und ein von einem Meßwert unterscheidbares Stromsignal durch ein Stromsignal von weniger als 3,6 mA oder mehr als 21 mA dar­ gestellt wird, das bei Ausfall länger als 4 Sekunden und bei Wartungsbedarf kürzer als 2 Sekunden ausgegeben wird.3. Transmitter according to claim 1 or 2, characterized characterized in that a measured value by a current signal in a value range between 4 mA and 20 mA and on current signal distinguishable from a measured value by a Current signal of less than 3.6 mA or more than 21 mA is set, in the event of failure for more than 4 seconds and at Maintenance requirement is output less than 2 seconds. 4. Prozeßleitsystem, an welches ein Meßumformer (1) zur Versorgung des Meßumformers (1) mit der zum Betrieb erfor­ derlichen Energie und zur Übertragung eines einen Meßwert darstellenden Stromsignals an das Prozeßleitsystem (3) mit zumindest einer Zweidrahtleitung (2) anschließbar ist, mit einer Auswerteeinheit (5), die derart ausgebildet ist, daß sie
  • - bei einem einen Meßwert darstellenden Stromsignal einen "Gut"-Zustand,
  • - bei einem statischen, von einem Meßwert unterscheidbaren Stromsignal einen Ausfall und
  • - bei einem von einem Meßwert unterscheidbaren Stromsignal, das derart kurzzeitig empfangen wird, daß es von dem statischen Stromsignal unterscheidbar ist, einen War­ tungsbedarf des Meßumformers (1) anzeigt.
4. Process control system to which a transmitter ( 1 ) for supplying the transmitter ( 1 ) with the energy required for operation and for transmitting a current signal representing a measured value to the process control system ( 3 ) with at least one two-wire line ( 2 ) can be connected an evaluation unit ( 5 ) which is designed such that it
  • in the case of a current signal representing a measured value, a "good" state,
  • - in the case of a static current signal which can be distinguished from a measured value, a failure and
  • - At a distinguishable from a measured value current signal, which is received for a short time so that it can be distinguished from the static current signal, indicates a maintenance requirement of the transmitter ( 1 ).
DE29917651U 1999-10-07 1999-10-07 Transmitter and process control system Expired - Lifetime DE29917651U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29917651U DE29917651U1 (en) 1999-10-07 1999-10-07 Transmitter and process control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29917651U DE29917651U1 (en) 1999-10-07 1999-10-07 Transmitter and process control system

Publications (1)

Publication Number Publication Date
DE29917651U1 true DE29917651U1 (en) 2000-11-09

Family

ID=8079952

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29917651U Expired - Lifetime DE29917651U1 (en) 1999-10-07 1999-10-07 Transmitter and process control system

Country Status (1)

Country Link
DE (1) DE29917651U1 (en)

Cited By (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6356191B1 (en) 1999-06-17 2002-03-12 Rosemount Inc. Error compensation for a process fluid temperature transmitter
US6370448B1 (en) 1997-10-13 2002-04-09 Rosemount Inc. Communication technique for field devices in industrial processes
US6397114B1 (en) 1996-03-28 2002-05-28 Rosemount Inc. Device in a process system for detecting events
US6434504B1 (en) 1996-11-07 2002-08-13 Rosemount Inc. Resistance based process control device diagnostics
US6449574B1 (en) 1996-11-07 2002-09-10 Micro Motion, Inc. Resistance based process control device diagnostics
US6473710B1 (en) 1999-07-01 2002-10-29 Rosemount Inc. Low power two-wire self validating temperature transmitter
US6505517B1 (en) 1999-07-23 2003-01-14 Rosemount Inc. High accuracy signal processing for magnetic flowmeter
US6519546B1 (en) 1996-11-07 2003-02-11 Rosemount Inc. Auto correcting temperature transmitter with resistance based sensor
US6539267B1 (en) 1996-03-28 2003-03-25 Rosemount Inc. Device in a process system for determining statistical parameter
US6556145B1 (en) 1999-09-24 2003-04-29 Rosemount Inc. Two-wire fluid temperature transmitter with thermocouple diagnostics
WO2003040851A2 (en) * 2001-11-02 2003-05-15 Siemens Aktiengesellschaft Arrangement with a peripheral unit connected to a central unit by means of a twin-core line
US6601005B1 (en) 1996-11-07 2003-07-29 Rosemount Inc. Process device diagnostics using process variable sensor signal
US6611775B1 (en) 1998-12-10 2003-08-26 Rosemount Inc. Electrode leakage diagnostics in a magnetic flow meter
US6615149B1 (en) 1998-12-10 2003-09-02 Rosemount Inc. Spectral diagnostics in a magnetic flow meter
US6629059B2 (en) 2001-05-14 2003-09-30 Fisher-Rosemount Systems, Inc. Hand held diagnostic and communication device with automatic bus detection
US6654697B1 (en) 1996-03-28 2003-11-25 Rosemount Inc. Flow measurement with diagnostics
US6701274B1 (en) 1999-08-27 2004-03-02 Rosemount Inc. Prediction of error magnitude in a pressure transmitter
US6735484B1 (en) 2000-09-20 2004-05-11 Fargo Electronics, Inc. Printer with a process diagnostics system for detecting events
US6754601B1 (en) 1996-11-07 2004-06-22 Rosemount Inc. Diagnostics for resistive elements of process devices
DE10256623A1 (en) * 2002-12-03 2004-06-24 Krohne Meßtechnik GmbH & Co KG Electrical device and method for operating an electrical device
US6772036B2 (en) 2001-08-30 2004-08-03 Fisher-Rosemount Systems, Inc. Control system using process model
US6859755B2 (en) 2001-05-14 2005-02-22 Rosemount Inc. Diagnostics for industrial process control and measurement systems
US6889166B2 (en) 2001-12-06 2005-05-03 Fisher-Rosemount Systems, Inc. Intrinsically safe field maintenance tool
DE102004028509A1 (en) * 2003-12-04 2005-07-07 Continental Teves Ag & Co. Ohg Transmitting measured signals of braking pressure to measurement unit with controller in vehicle, employs current interface in connection between them
WO2005101345A1 (en) * 2004-04-19 2005-10-27 Endress+Hauser Gmbh+Co. Kg Digital measuring transducer with current signal
US7027952B2 (en) 2002-03-12 2006-04-11 Fisher-Rosemount Systems, Inc. Data transmission method for a multi-protocol handheld field maintenance tool
US7036386B2 (en) 2003-05-16 2006-05-02 Fisher-Rosemount Systems, Inc. Multipurpose utility mounting assembly for handheld field maintenance tool
US7054695B2 (en) 2003-05-15 2006-05-30 Fisher-Rosemount Systems, Inc. Field maintenance tool with enhanced scripts
US7054765B2 (en) 2001-11-02 2006-05-30 Siemens Aktiengesellschaft Measuring transducer
US7199784B2 (en) 2003-05-16 2007-04-03 Fisher Rosemount Systems, Inc. One-handed operation of a handheld field maintenance tool
DE102005047894A1 (en) * 2005-10-06 2007-04-19 Abb Patent Gmbh Testing method for testing the operating ability of two-core measuring transducers in automation systems emits a test signal as a load-independent loop co-current via a two-wire lead
DE10249846B4 (en) * 2002-10-25 2007-08-16 Siemens Ag Redundant arrangement of field devices with current output and field device for such an arrangement
DE102006024311A1 (en) * 2006-05-24 2007-11-29 Berthold Technologies Gmbh & Co. Kg Circuit for transmitting an analog signal value
DE102008036552A1 (en) * 2008-08-06 2010-02-18 Endress + Hauser Gmbh + Co. Kg Field device i.e. measuring device, for determining and/or monitoring e.g. process parameter, has two current sinks connected in series, where sinks are connected to interface such that current signal is dependent of lower current strength
US7750642B2 (en) 2006-09-29 2010-07-06 Rosemount Inc. Magnetic flowmeter with verification
US7835295B2 (en) 2005-07-19 2010-11-16 Rosemount Inc. Interface module with power over Ethernet function
US7921734B2 (en) 2009-05-12 2011-04-12 Rosemount Inc. System to detect poor process ground connections
US7940189B2 (en) 2005-09-29 2011-05-10 Rosemount Inc. Leak detector for process valve
US7949495B2 (en) 1996-03-28 2011-05-24 Rosemount, Inc. Process variable transmitter with diagnostics
US7953501B2 (en) 2006-09-25 2011-05-31 Fisher-Rosemount Systems, Inc. Industrial process control loop monitor
CN102187180A (en) * 2008-10-15 2011-09-14 恩德莱斯和豪瑟尔两合公司 Process automation field device
US8112565B2 (en) 2005-06-08 2012-02-07 Fisher-Rosemount Systems, Inc. Multi-protocol field device interface with automatic bus detection
US8216717B2 (en) 2003-03-06 2012-07-10 Fisher-Rosemount Systems, Inc. Heat flow regulating cover for an electrical storage cell
US8290721B2 (en) 1996-03-28 2012-10-16 Rosemount Inc. Flow measurement diagnostics
EP2226515A3 (en) * 2009-03-02 2013-01-23 Samson Aktiengesellschaft Limit signaller and method for operating same
WO2013097989A1 (en) * 2011-12-27 2013-07-04 Endress+Hauser Gmbh+Co. Kg Device for determining and/or monitoring a limit value of a process variable
US8874402B2 (en) 2003-05-16 2014-10-28 Fisher-Rosemount Systems, Inc. Physical memory handling for handheld field maintenance tools
US8898036B2 (en) 2007-08-06 2014-11-25 Rosemount Inc. Process variable transmitter with acceleration sensor
US9052240B2 (en) 2012-06-29 2015-06-09 Rosemount Inc. Industrial process temperature transmitter with sensor stress diagnostics
US9207670B2 (en) 2011-03-21 2015-12-08 Rosemount Inc. Degrading sensor detection implemented within a transmitter
US9207129B2 (en) 2012-09-27 2015-12-08 Rosemount Inc. Process variable transmitter with EMF detection and correction
US9602122B2 (en) 2012-09-28 2017-03-21 Rosemount Inc. Process variable measurement noise diagnostic
US9634858B2 (en) 2005-07-20 2017-04-25 Rosemount Inc. Field device with power over Ethernet
WO2018041968A1 (en) * 2016-09-01 2018-03-08 Abb Schweiz Ag Method for checking the operability of measuring transducers
US10261506B2 (en) 2002-12-05 2019-04-16 Fisher-Rosemount Systems, Inc. Method of adding software to a field maintenance tool
DE102018122881A1 (en) * 2018-09-18 2020-03-19 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Method for transmitting sensor signals from sensors of a vehicle brake and vehicle brake with a sensor arrangement with at least two sensors
DE102004015616B4 (en) 2003-04-01 2022-03-17 Fisher-Rosemount Systems, Inc. Safety system controller for use in a process environment, process control system and related control method

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DE3819128C2 (en) * 1988-06-04 1995-10-26 Conducta Endress & Hauser Gas detection system
DE19536573C1 (en) * 1995-07-17 1996-11-14 Siemens Ag System for releasing retention device in road vehicle
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DE69129189T2 (en) * 1990-10-18 1998-07-30 Schneider Electric Sa TWO-WIRE SENSOR WITH REGULATED VOLTAGE
EP0883097A2 (en) * 1997-06-05 1998-12-09 Endress + Hauser GmbH + Co. Device for transmitting signals between a transmitter and a receiver
DE19740021A1 (en) * 1997-09-11 1999-03-25 Siemens Ag Vehicle occupant protection device
DE19752279A1 (en) * 1997-11-26 1999-06-02 Daimler Chrysler Ag Sensor arrangement and operating method therefor
EP0660089B1 (en) * 1993-12-22 1999-06-09 Namco Controls Corporation Method and interface device for monitoring and evaluating sensor signals

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3819128C2 (en) * 1988-06-04 1995-10-26 Conducta Endress & Hauser Gas detection system
DE69129189T2 (en) * 1990-10-18 1998-07-30 Schneider Electric Sa TWO-WIRE SENSOR WITH REGULATED VOLTAGE
EP0660089B1 (en) * 1993-12-22 1999-06-09 Namco Controls Corporation Method and interface device for monitoring and evaluating sensor signals
DE19536573C1 (en) * 1995-07-17 1996-11-14 Siemens Ag System for releasing retention device in road vehicle
DE19609076C1 (en) * 1996-03-08 1997-08-14 Siemens Ag Method for triggering a restraint in a vehicle
EP0883097A2 (en) * 1997-06-05 1998-12-09 Endress + Hauser GmbH + Co. Device for transmitting signals between a transmitter and a receiver
DE19740021A1 (en) * 1997-09-11 1999-03-25 Siemens Ag Vehicle occupant protection device
DE19752279A1 (en) * 1997-11-26 1999-06-02 Daimler Chrysler Ag Sensor arrangement and operating method therefor

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Cited By (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6654697B1 (en) 1996-03-28 2003-11-25 Rosemount Inc. Flow measurement with diagnostics
US8290721B2 (en) 1996-03-28 2012-10-16 Rosemount Inc. Flow measurement diagnostics
US6397114B1 (en) 1996-03-28 2002-05-28 Rosemount Inc. Device in a process system for detecting events
US6532392B1 (en) 1996-03-28 2003-03-11 Rosemount Inc. Transmitter with software for determining when to initiate diagnostics
US6539267B1 (en) 1996-03-28 2003-03-25 Rosemount Inc. Device in a process system for determining statistical parameter
US7949495B2 (en) 1996-03-28 2011-05-24 Rosemount, Inc. Process variable transmitter with diagnostics
US6601005B1 (en) 1996-11-07 2003-07-29 Rosemount Inc. Process device diagnostics using process variable sensor signal
US6519546B1 (en) 1996-11-07 2003-02-11 Rosemount Inc. Auto correcting temperature transmitter with resistance based sensor
US6449574B1 (en) 1996-11-07 2002-09-10 Micro Motion, Inc. Resistance based process control device diagnostics
US6754601B1 (en) 1996-11-07 2004-06-22 Rosemount Inc. Diagnostics for resistive elements of process devices
US6434504B1 (en) 1996-11-07 2002-08-13 Rosemount Inc. Resistance based process control device diagnostics
US6370448B1 (en) 1997-10-13 2002-04-09 Rosemount Inc. Communication technique for field devices in industrial processes
US6594603B1 (en) 1998-10-19 2003-07-15 Rosemount Inc. Resistive element diagnostics for process devices
US6615149B1 (en) 1998-12-10 2003-09-02 Rosemount Inc. Spectral diagnostics in a magnetic flow meter
US6611775B1 (en) 1998-12-10 2003-08-26 Rosemount Inc. Electrode leakage diagnostics in a magnetic flow meter
US6356191B1 (en) 1999-06-17 2002-03-12 Rosemount Inc. Error compensation for a process fluid temperature transmitter
US6473710B1 (en) 1999-07-01 2002-10-29 Rosemount Inc. Low power two-wire self validating temperature transmitter
US6505517B1 (en) 1999-07-23 2003-01-14 Rosemount Inc. High accuracy signal processing for magnetic flowmeter
US6701274B1 (en) 1999-08-27 2004-03-02 Rosemount Inc. Prediction of error magnitude in a pressure transmitter
US6556145B1 (en) 1999-09-24 2003-04-29 Rosemount Inc. Two-wire fluid temperature transmitter with thermocouple diagnostics
US6735484B1 (en) 2000-09-20 2004-05-11 Fargo Electronics, Inc. Printer with a process diagnostics system for detecting events
US6859755B2 (en) 2001-05-14 2005-02-22 Rosemount Inc. Diagnostics for industrial process control and measurement systems
US6629059B2 (en) 2001-05-14 2003-09-30 Fisher-Rosemount Systems, Inc. Hand held diagnostic and communication device with automatic bus detection
US6772036B2 (en) 2001-08-30 2004-08-03 Fisher-Rosemount Systems, Inc. Control system using process model
WO2003040851A3 (en) * 2001-11-02 2003-08-14 Siemens Ag Arrangement with a peripheral unit connected to a central unit by means of a twin-core line
US7054765B2 (en) 2001-11-02 2006-05-30 Siemens Aktiengesellschaft Measuring transducer
WO2003040851A2 (en) * 2001-11-02 2003-05-15 Siemens Aktiengesellschaft Arrangement with a peripheral unit connected to a central unit by means of a twin-core line
US6889166B2 (en) 2001-12-06 2005-05-03 Fisher-Rosemount Systems, Inc. Intrinsically safe field maintenance tool
US7117122B2 (en) 2001-12-06 2006-10-03 Fisher-Rosemount Systems, Inc. Field maintenance tool
US7027952B2 (en) 2002-03-12 2006-04-11 Fisher-Rosemount Systems, Inc. Data transmission method for a multi-protocol handheld field maintenance tool
DE10249846B4 (en) * 2002-10-25 2007-08-16 Siemens Ag Redundant arrangement of field devices with current output and field device for such an arrangement
EP1427086B2 (en) † 2002-12-03 2013-07-24 Krohne Messtechnik Gmbh & Co. Kg Electrical apparatus and method for operating it
US7162651B2 (en) 2002-12-03 2007-01-09 Krohne Messtechnik Gmbh & Co. Kg Electric device and method for operating an electric device
DE10256623A1 (en) * 2002-12-03 2004-06-24 Krohne Meßtechnik GmbH & Co KG Electrical device and method for operating an electrical device
US10261506B2 (en) 2002-12-05 2019-04-16 Fisher-Rosemount Systems, Inc. Method of adding software to a field maintenance tool
US8216717B2 (en) 2003-03-06 2012-07-10 Fisher-Rosemount Systems, Inc. Heat flow regulating cover for an electrical storage cell
DE102004015616B4 (en) 2003-04-01 2022-03-17 Fisher-Rosemount Systems, Inc. Safety system controller for use in a process environment, process control system and related control method
US7054695B2 (en) 2003-05-15 2006-05-30 Fisher-Rosemount Systems, Inc. Field maintenance tool with enhanced scripts
US7199784B2 (en) 2003-05-16 2007-04-03 Fisher Rosemount Systems, Inc. One-handed operation of a handheld field maintenance tool
US7036386B2 (en) 2003-05-16 2006-05-02 Fisher-Rosemount Systems, Inc. Multipurpose utility mounting assembly for handheld field maintenance tool
US8874402B2 (en) 2003-05-16 2014-10-28 Fisher-Rosemount Systems, Inc. Physical memory handling for handheld field maintenance tools
DE102004028509A1 (en) * 2003-12-04 2005-07-07 Continental Teves Ag & Co. Ohg Transmitting measured signals of braking pressure to measurement unit with controller in vehicle, employs current interface in connection between them
WO2005101345A1 (en) * 2004-04-19 2005-10-27 Endress+Hauser Gmbh+Co. Kg Digital measuring transducer with current signal
US7928742B2 (en) 2004-04-19 2011-04-19 Endress + Hauser Gmbh + Co. Kg Digital measurement transmitter with current signal
US8112565B2 (en) 2005-06-08 2012-02-07 Fisher-Rosemount Systems, Inc. Multi-protocol field device interface with automatic bus detection
US7835295B2 (en) 2005-07-19 2010-11-16 Rosemount Inc. Interface module with power over Ethernet function
US9634858B2 (en) 2005-07-20 2017-04-25 Rosemount Inc. Field device with power over Ethernet
US7940189B2 (en) 2005-09-29 2011-05-10 Rosemount Inc. Leak detector for process valve
DE102005047894B4 (en) * 2005-10-06 2010-05-12 Abb Ag Method for checking the operability of transmitters
DE102005047894A1 (en) * 2005-10-06 2007-04-19 Abb Patent Gmbh Testing method for testing the operating ability of two-core measuring transducers in automation systems emits a test signal as a load-independent loop co-current via a two-wire lead
DE102006024311A1 (en) * 2006-05-24 2007-11-29 Berthold Technologies Gmbh & Co. Kg Circuit for transmitting an analog signal value
US7953501B2 (en) 2006-09-25 2011-05-31 Fisher-Rosemount Systems, Inc. Industrial process control loop monitor
US7750642B2 (en) 2006-09-29 2010-07-06 Rosemount Inc. Magnetic flowmeter with verification
US8898036B2 (en) 2007-08-06 2014-11-25 Rosemount Inc. Process variable transmitter with acceleration sensor
DE102008036552A1 (en) * 2008-08-06 2010-02-18 Endress + Hauser Gmbh + Co. Kg Field device i.e. measuring device, for determining and/or monitoring e.g. process parameter, has two current sinks connected in series, where sinks are connected to interface such that current signal is dependent of lower current strength
CN102187180B (en) * 2008-10-15 2014-08-20 恩德莱斯和豪瑟尔两合公司 Process automation field device
CN102187180A (en) * 2008-10-15 2011-09-14 恩德莱斯和豪瑟尔两合公司 Process automation field device
EP2226515A3 (en) * 2009-03-02 2013-01-23 Samson Aktiengesellschaft Limit signaller and method for operating same
US7921734B2 (en) 2009-05-12 2011-04-12 Rosemount Inc. System to detect poor process ground connections
US9207670B2 (en) 2011-03-21 2015-12-08 Rosemount Inc. Degrading sensor detection implemented within a transmitter
US10067081B2 (en) 2011-12-27 2018-09-04 Endress + Hauser Gmbh + Co. Kg Apparatus for determining and/or monitoring a limit value of a process variable
WO2013097989A1 (en) * 2011-12-27 2013-07-04 Endress+Hauser Gmbh+Co. Kg Device for determining and/or monitoring a limit value of a process variable
CN104024809A (en) * 2011-12-27 2014-09-03 恩德莱斯和豪瑟尔两合公司 Device For Determining And/Or Monitoring A Limit Value Of A Process Variable
US9052240B2 (en) 2012-06-29 2015-06-09 Rosemount Inc. Industrial process temperature transmitter with sensor stress diagnostics
US9207129B2 (en) 2012-09-27 2015-12-08 Rosemount Inc. Process variable transmitter with EMF detection and correction
US9602122B2 (en) 2012-09-28 2017-03-21 Rosemount Inc. Process variable measurement noise diagnostic
WO2018041968A1 (en) * 2016-09-01 2018-03-08 Abb Schweiz Ag Method for checking the operability of measuring transducers
US10718642B2 (en) 2016-09-01 2020-07-21 Abb Schweiz Ag Method for checking the operability of measuring transducers
DE102018122881A1 (en) * 2018-09-18 2020-03-19 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Method for transmitting sensor signals from sensors of a vehicle brake and vehicle brake with a sensor arrangement with at least two sensors

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