EP1001397A2 - Messumformer sowie Verfahren zum Betreiben eines Messumformers - Google Patents
Messumformer sowie Verfahren zum Betreiben eines Messumformers Download PDFInfo
- Publication number
- EP1001397A2 EP1001397A2 EP99121437A EP99121437A EP1001397A2 EP 1001397 A2 EP1001397 A2 EP 1001397A2 EP 99121437 A EP99121437 A EP 99121437A EP 99121437 A EP99121437 A EP 99121437A EP 1001397 A2 EP1001397 A2 EP 1001397A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- transmitter
- fault
- block
- state
- operating
- 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.)
- Withdrawn
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/20—Calibration, including self-calibrating arrangements
- G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components
Definitions
- the present invention relates to a method for operating a transmitter, in particular a temperature transmitter, according to the preamble of the claim 1.
- the invention further relates to a transmitter, in particular a Temperature transmitter, according to the preamble of claim 4.
- STT Smart Temperature Transmitter
- the EP 0 262 658 B1 and EP 0 266 553 A2 from the applicant show the structure of such Transmitter.
- the overall structure of a system in which such a transmitter is operated, as well as the internal structure of the transmitter and a dialog unit connected to a two-wire line in the system can be connected.
- the transmitter is equipped with a microprocessor and assigned read-only memory and Random access memory, e.g. the signals of a Process the temperature sensor after appropriate analog / digital conversion and over can output an interface on a two-wire line.
- a microprocessor and assigned read-only memory and Random access memory, e.g. the signals of a Process the temperature sensor after appropriate analog / digital conversion and over can output an interface on a two-wire line.
- the dialog device settings connected to the two-wire line Calibrations and readings regarding the temperature sensor are made.
- Transmitters of the above type are commonly used using an alarm management system operated to process occurring faults. According to the state In terms of technology, a distinction is made between two different alarm management systems Operating a transmitter:
- the present invention is based on the problem Method for operating a transmitter and a corresponding transmitter with good operational availability and at the same time good troubleshooting.
- the transmitter according to the The present invention has the features of claim 4.
- the signal flow diagram shown in the drawing illustrates the invention Method for operating a transmitter, in particular a temperature transmitter.
- the inventive method preferably comes from the Applicant sold under the type designation STT3000 or STT350 Transmitters for use. Details of these transmitters are in EP 0 262 658 B1 as well as EP 0 266 553 A2, the disclosure content of which is expressly described here is referenced.
- the method according to the invention serves for the reliable detection and elimination of am Transmitter pending faults, while maintaining good operational availability of the transmitter is guaranteed.
- the transmitter is operated as follows:
- the transmitter increases processing measurement data. This is in the signal flow diagram of Figure 1 by a Block 10 illustrates. Immediately after recording the measurement data The measurement data are checked by the transmitter, this checking step is represented by block 11. Following this check or diagnosis of Data recorded by the transmitter is checked whether a There is a fault. This fault check is illustrated by block 12.
- the transmitter is switched from an operating state to a fault state transferred. However, if there is no fault, the transmitter remains in the Operating status.
- Block 12 clarifies this status signal check in Figure 1. comes the status signal check to a negative result, so the alarm status signal is not active, see above the alarm status signal is set in a first step - see block 14 in FIG. 1. Immediately thereupon a signal is generated with the help of which a fault is present is displayed to the maintenance personnel on the transmitter. This is shown in Figure 1 by the Block 15 shown. Immediately afterwards, the fault is saved, which is shown in FIG 1 is represented by block 16. The fault can be in a RAM or other memory can be saved from which data can be read.
- Block 12 If the fault on the transmitter disappears after a certain time, then the fault check represented by block 12 comes to the conclusion that there is no fault on the transmitter and the transmitter then becomes automatic and immediately transferred from the fault state to the operating state. For this, from Block 12 branches to block 17, it being checked in block 17 whether the alarm status signal has been reset, i.e. is passive. This review comes to a negative result, the alarm status signal is deactivated by block 18, and then branched back to block 10. By resetting or Deactivating the alarm status signal after an am has been saved Transmitter present fault condition ensures that when a new Fault this can also be recorded or saved.
- block 17 the result is that the alarm status signal has been reset, the system branches to block 19.
- block 19 the data recorded by the transmitter will be changed according to the function of the Transmitter processed.
- Block 22 causes the data output by the transmitter be updated. In other words, in block 22 the output signal the transmitter adapted with regard to the currently recorded data.
- block 23 a check is made in block 23 as to whether the during the Malfunctions recorded or saved by maintenance personnel queried and thus noted. This review comes to a positive result, the process branches from block 23 to block 24, i.e. the in Stored faults are deleted. However, they were in memory Stored faults are not noted, so the block is immediately 10 branched back, i.e. the faults stored in the memory are not deleted.
- the method according to the invention can be carried out in a transmitter according to the invention be implemented both by hardware components and by software.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmitters (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
Description
- Fig. 1:
- ein Signalflußdiagramm zur Verdeutlichung des erfindungsgemäßen Verfahrens.
Claims (4)
- Verfahren zum Betreiben eines Meßumformers, insbesondere eines Temperatur-Meßumformers, wobei der Meßumformer nach dem Auftreten einer Störung von einem Betriebszustand in einen Störzustand überführt wird, dadurch gekennzeichnet, daß nach dem Umschalten in den Störzustand die Störung gespeichert wird, und daß nach dem Verschwinden der Störung der Meßumformer vom Störzustand in den Betriebszustand überführt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Störung in einem auslesbaren Speicher gespeichert wird und die Speicherung durch ein Signal angezeigt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß nach dem Speichern der Störung und nach dem Verschwinden der Störung der Meßumformer automatisch und unmittelbar vom Störzustand in den Betriebszustand überführt wird.
- Meßumformer, insbesondere Temperatur-Meßumformer, mit einem Alarm-Managementsystem, gekennzeichnet durch einen auslesbaren Speicher zum Speichern von am Meßumformer anliegenden Störungen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998150579 DE19850579C2 (de) | 1998-11-03 | 1998-11-03 | Verfahren zum Betreiben eines Meßumformers |
DE19850579 | 1998-11-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1001397A2 true EP1001397A2 (de) | 2000-05-17 |
EP1001397A3 EP1001397A3 (de) | 2007-04-04 |
Family
ID=7886497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99121437A Withdrawn EP1001397A3 (de) | 1998-11-03 | 1999-10-28 | Messumformer sowie Verfahren zum Betreiben eines Messumformers |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1001397A3 (de) |
DE (1) | DE19850579C2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10035181C1 (de) * | 2000-07-20 | 2001-12-06 | Joachim Hettler | Gerätesystem zum Anzeigen gerätespezifischer Informationen von Geräten |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4754261A (en) * | 1987-03-30 | 1988-06-28 | Pittway Corporation | Security system |
US5506567A (en) * | 1993-10-07 | 1996-04-09 | Temic Telefunken Microelectronic Gmbh | Process for monitoring the openings to an enclosed space |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3634839A (en) * | 1968-03-11 | 1972-01-11 | American District Telegraph Co | Method and apparatus for suppressing spurious alarms in an electrical protection system |
DE3107830A1 (de) * | 1981-02-25 | 1982-09-09 | Auergesellschaft Gmbh, 1000 Berlin | Verfahren und anordnung zur erhaltung des alarmzustandes eines gaswarngeraetes |
EP0262658B1 (de) * | 1986-10-01 | 1992-10-21 | Honeywell Inc. | Zweidrahtübertragungssystem |
DE3782310T3 (de) * | 1986-10-01 | 1998-05-28 | Honeywell Inc | Zweidrahtübertragungssystem. |
-
1998
- 1998-11-03 DE DE1998150579 patent/DE19850579C2/de not_active Expired - Fee Related
-
1999
- 1999-10-28 EP EP99121437A patent/EP1001397A3/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4754261A (en) * | 1987-03-30 | 1988-06-28 | Pittway Corporation | Security system |
US5506567A (en) * | 1993-10-07 | 1996-04-09 | Temic Telefunken Microelectronic Gmbh | Process for monitoring the openings to an enclosed space |
Also Published As
Publication number | Publication date |
---|---|
EP1001397A3 (de) | 2007-04-04 |
DE19850579C2 (de) | 2001-09-13 |
DE19850579A1 (de) | 2000-05-11 |
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