CN1914568A - System and method for the safe automatic detection of a field device communicating with current modulated signal - Google Patents
System and method for the safe automatic detection of a field device communicating with current modulated signal Download PDFInfo
- Publication number
- CN1914568A CN1914568A CNA2004800411963A CN200480041196A CN1914568A CN 1914568 A CN1914568 A CN 1914568A CN A2004800411963 A CNA2004800411963 A CN A2004800411963A CN 200480041196 A CN200480041196 A CN 200480041196A CN 1914568 A CN1914568 A CN 1914568A
- Authority
- CN
- China
- Prior art keywords
- current
- field apparatus
- configuration
- field
- electric current
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25428—Field device
Abstract
A current generator that provides a first current level to read a configuration parameter of a field device. The current generator also provides a second current level. The first current level is lower in amperage than the second current level. The first current level does not operate the field device. The second current level operates the field device. A current sensor is connected in circuit with the field device. The current sensor reads the configuration parameter associated with the first current level. A method is provided that creates a current that reads a configuration parameter. The current has less than a minimum amplitude to operate necessary to operate a field device. The configuration parameter is read from the field device through employment of the current. The field device is configured through employment of the configuration parameter.
Description
The cross reference of related application
The application requires the U.S. Provisional Patent Application sequence number of submitting on Dec 4th, 2,003 60/526548, the right of priority that name is called the application of " system and method that detects field device communicating with the signals security of current-modulation automatically ", and its full content is combination and this paper by reference.
Technical field
Disclosure technology relates to fetch equipment and configuration device, more particularly, relates to the electric current that reduces by use and reads also configuration device.
Background technology
Some protocol specifications of picture HART (registered trademark of Hart Comm Foundation) communication protocol are used for supporting digital communication.These digital communications can be used to measure the various processes and the parameter of various opertaing devices.Digital communication in these protocol specifications is usually operated at the traditional range of 4-20 milliampere (mA).Usually, these digital communications provide process and the diagnostic message relevant with field apparatus to master control system.These digital communications are operated in during master control system monitoring and the control industrial process.
A target of such protocol specification is to set up some standards so that " main frame " (perhaps " I/O (I/O) primary controller ") can communicate with the scene " equipment " (" from the control device ") of different vendor's exploitation.A subclass of these protocol specifications is divided by having " public function "." public function " requires main frame or equipment must satisfy all standards in this subclass of protocol specification.This makes main frame only need the individual interface layer just can support various field apparatuss from a plurality of different vendors.
Yet other assemblies of this protocol specification are divided by " equipment is peculiar ", and by each equipment manufacturers' definition.Because at least some numerical datas of transmitting between main frame or I/O primary controller and field apparatus are specific to given field apparatus type, therefore, in the real-time industrial process, use before the field apparatus, know that importantly the field apparatus of which kind of type is connected to master control system.
In other words, because the characteristic of the peculiar assembly of equipment of field apparatus must obtain and verify the relevant information about the identification field apparatus before configuration is written into and carries out.Usually, configuration is written into and carries out the initialization that may be defined as at the scene the field apparatus that uses and the actual use of field apparatus.Relevant information can comprise the unique identifier that is used for given field apparatus, field apparatus trade name, be installed in the description of the firmware revised edition of field apparatus, the token name of field apparatus (being assumed name), field apparatus and field apparatus can be measured or the various range limits that are suitable for.If the above-mentioned information that obtains from the initial start of field apparatus then is not difficult to the peculiar data of equipment are attached in the real-time process control strategy.
Usually, input equipment is a types of current sources, and output device is the current sinking type.Sensor is the example of input equipment and the example that electrical valve is output device." baseband signal " of use source electric current provides two functions at least.It powers up to field apparatus and the initial configuration field apparatus, and baseband signal still is to transmit the carrier wave of numerical information on it.For current sinking equipment, thereby I/O Host Controller Driver electric current provides " base band " signal relevant with these agreements.Therefore, for output device, in order to carry out digital communication by means of protocol specification, main frame or I/O primary controller provide minimum current limit to move.
Conventional protocol specification needs the user initially to be written into control configuration (may use wrong initial control configuration), to activate control strategy and will export (source) current drives to communicating required basic value with field apparatus.This is operated in the traditional range of 4-20mA.Can only gather actual device identification and configuration data then.Yet, be appreciated that this may cause gross mistake when implementing initial control strategy in real time.
The alternative approach of using in other conventional protocol specifications always provides minimum electric current as 4mA.Yet this method is inappropriate, because to being not unsafe by the field apparatus of initial configuration power supply.In any case if problem makes the field apparatus itself can't response current, then the user is with uncontrollable output device.
In routine techniques, in order to move field apparatus, after configuration, apply electric current, because configuration back field apparatus is controlled to field apparatus.Yet, during the electric current of 4mA is applied on the field apparatus, even does not carry out any configuration and just apply electric current, therefore uncontrollable this field apparatus.
Yet, if any mistake is arranged after applying the 4mA electric current, all with uncontrollable field apparatus.Another problem is to cause that in the prior art scheme minimum current of safety problem is omnipresent.
Therefore, need before being written into, configuration use the current modulated technical security to create reliably and the communicating by letter and obtain the field apparatus identification data of field apparatus.
Summary of the invention
Current feedback circuit is provided, and first current level of the configuration parameter of at least one field apparatus is read in its generation.First current level on the magnitude of current less than second current level.First current level does not make field apparatus work.Current feedback circuit also produces second electric current.Second current level makes described field apparatus work.Current sensor is connected with field apparatus in circuit.One or more configuration parameters that current sensor senses is relevant with first current level.
Description of drawings
Fig. 1 is the sketch of prior art control system before configuration;
Fig. 2 is the sketch of the prior art arrangement of inactive system controller and primary controller;
Fig. 3 is the sketch that is in the prior art arrangement of the system controller of active state and primary controller;
Fig. 4 is the sketch of the prior art arrangement of the system controller that disposed and primary controller.
Fig. 5 is to use the sketch of configuration of the equipment of " automatically detect " option;
Fig. 6 is the sketch of computer system that can move the program of the configuration information that is used to detect field apparatus; And
Fig. 7 is the sketch that is operated in the current feedback circuit of detection/field device configurations read mode and field apparatus mode of operation.
Embodiment
" module " this term of Shi Yonging is embodied as assembly independently in order to differentiation or is embodied as one of them functional performance of a plurality of modules in the integrated combination in this article.
With reference to figure 1, illustrated is to have the system 100 that the prior art of inactive system controller 110, inactive I/O primary controller 120 and one or more field apparatus 125 does not dispose.Control linkage 115 is coupling between inactive system controller 110 and the inactive I/O primary controller 120.Control linkage 115 is cut off the power supply, and inactive system controller 110 is not configured with inactive I/O primary controller 120.Therefore there is not the electric current equipment 125 of reaching the spot.And, from one or more field apparatuss 125, do not fetch configuration information.
110 expressions of inactive system controller can be carried out appliance arrangement, hardware, software or the software and hardware combining of the control algolithm that is used to control one or more field apparatuss 125.
In one embodiment, inactive system controller 110 example is the C200 module among the Experion procedural knowledge TM of system (PKS).Experion PKS is the integrated form platform of controlling, managing and manage optimizing process operation, diagnosis and domain knowledge.C200 is the equipment that is used for the process operation of control example such as Experion PKS.
With reference now to Fig. 2,, illustrated is the system 129 of prior art initial configuration, and this system 129 comprises the inactive system controller 130 with inactive controll block 131, inactive I/O primary controller 140 and the one or more field apparatus 145 with inactive passage block 141.Control linkage 135 is coupling between inactive system controller 130 and the inactive I/O primary controller 140.Control linkage 135 is transmission information between inactive system controller 130 and inactive I/O primary controller 140.
Inactive system controller 130 is illustrated as has one or more inactive controll blocks 131.Controll block is real-time control algolithm/strategy, for example is used to monitor the logical expressions of one or more field apparatuss 145 " proportional-integral-differential " control algolithm.Yet in inactive system controller 130, controll block is inactive controll block 131.Therefore, although created controll block, yet also do not use them.Inactive controll block 131 usefulness are not that the initial/original configuration data that directly reads from one or more field apparatuss 145 disposes.
Inactive I/O primary controller 140 is illustrated as has one or more inactive passage blocks 141.Passage block generally is the logical expressions with one or more field apparatus 145 related datas.Use passage block to allow equipment disposition to be attached in the control strategy.Yet in the system 129 of initial configuration, controll block is inactive controll block 141.Therefore, do not have electric current to arrive one or more field apparatuss 145, and inactive controll block 141 usefulness are not directly to read the initial/original configuration data that obtains from one or more field apparatuss 145 to dispose.
With reference now to Fig. 3,, illustrated is the system 149 of prior art initial configuration, and this system 149 comprises the activity system controller 150 with activity controll block 151, movable I/O primary controller 160 and the one or more field apparatus 165 with active channel blocks 161.Control linkage 155 is coupling between activity system controller 150 and the movable I/O primary controller 160.
The loaded activity controll block 151 of initial configuration.Control linkage 155 (OP) illustrates as 0% to 100% " output number percent ".OP is equivalent to the output current from 4mA to 20mA.When passage block is movable and OP when being 0%, system is driven into 4mA on the current path 163, and when OP is 100%, driving 20mA.Active channel blocks 161 also has been written into initially/original configuration parameter.The active channel blocks 161 of movable I/O primary controller 160 is mutual versatilely by current path 163 and one or more field apparatuss 165.Therefore, there is the electric current of 4-20mA to be sent to one or more field apparatuss 165.The electric current of this 4-20mA is one or more field apparatus 164 power supplies, but is to use the parameter that is written in the initial configuration of activity controll block 151 and active channel blocks 161 also to do like this.
With reference now to Fig. 4,, illustrated is the system 169 that prior art reconfigures, 169 explanations of this system the system controller 170 that reconfigures, the I/O primary controller 180 that reconfigures have all received the actual configuration parameter of renewal by current path 183 from one or more field apparatuss 185 after, the two reconfigure.Control linkage 175 is coupling between system controller 170 that reconfigures and the I/O primary controller 180 that reconfigures.
In the system 169 that reconfigures, after one or more field apparatuss 185, through the final identification/configuration data of current path 183 each field apparatus among the one or more field apparatuss 185 of one or more field apparatuss 185 retrievals by the current activation that applies 4-20mA.Therefore, according to last of acquisition or the information that reconfigures of a plurality of field apparatus 185, revise the final configuration of the activity controll block that reconfigures 171 with the active channel blocks that reconfigures 181 of the I/O primary controller 180 that reconfigures of the system controller 170 that reconfigures.In the system 169 that reconfigures, this can be to be stored on one or more field apparatuss 185, on current path 183 numerical information that the electric current with 4-20mA transmits.
Generally speaking, as shown in Fig. 1-4, in the initial configuration of activity controll block 151 and active channel blocks 161, at first drive the 4-20mA that is used for to one or more field apparatus power supplies.Yet,, before applying electric current, do not read the real figure configuration parameter of one or more field apparatuss 185 as what in the system 169 that reconfigures, illustrate.The initial configuration of therefore, activity controll block 151 and active channel blocks 161 may be based on the information and the parameter of mistake.In the system 169 that reconfigures, only after starter system power supply is finished, the actual configuration parameter relevant with one or more field apparatus 185 just is taken into account in system controller 170 that reconfigures and the I/O180 that reconfigures.This may cause the gross error that disposes, when using the real-time control strategy of the degree of accuracy that relies on this initial configuration information, above-mentionedly wrongly can produce safety or operation misgivings.
Such problem is to be written in initial configuration to finish and equipment when being in running status, does not also have to set up and being connected of these equipment.If what problem equipment has, after equipment was in running status at the scene, system 100,200,300 or 400 will only can detect a period of time.This may be catastrophic.
With reference now to Fig. 5,, the illustrated configuration-system 200 that is to use the configuration detection characteristic to be used for the numerical information of one or more field apparatus 250 programmings.Usually, configuration-system 200 is before various system controllers of configuration and I/O primary controller, and safe and reliable method provides the Digital ID parameter to the control system user.Configuration-system 200 comprises system controller 205, I/O primary controller 220 and automatic detector 240, and this automatic detector 240 detected the real figure configuration information from one or more field apparatuss 250 before applying the 4.0-20.0mA electric current of standard.The initial actual configuration parameter that is stored on one or more field apparatuss 250 with digital form is used for I/O primary controller 220 or system controller 205 then, rather than uses user-defined configuration parameter.Can show the selection that will detect which or which field apparatus 250, and be input in system controller interface 223 or the I/O master interface 225.
By starting automatic detection, be driven on one or more field apparatuss 250 by current path 230 less than the safety current of 4mA.For example the safety current of 3.2mA communicates by letter enough for the device electronics power supply of one or more field apparatuss 250 with the starting current modulated digital.For example, the electric current that applies 3.2mA can not change state, for example stem position of one or more field apparatuss 250, but can read the real figure configuration parameter of one or more field apparatuss 250.These parameters are used to configuration-system controller 205 and I/O primary controller 220 then.Forbidding automatic detector 240 can be eliminated this safety current, even therefore the 3.2mA electric current makes the user can control to the output current of one or more field apparatuss 250 fully in the safety limit.
In other words, field apparatus 250 can just operate as normal when 4mA.By producing the electric current less than 4mA, this electric current is not big to one or more field apparatuss 250 are changed, and can set up digital communication just.
Generally speaking, configuration-system 200 provides the mechanism in I/O primary controller 220 or the system controller 205, may be before control strategy or configuration be loaded into controller 205 and I/O primary controller 220 by using system control unit interface 223 and I/O master interface 225, for current sinking equipment, for example one or more field apparatuss 250 start and forbid automatic field apparatus numerical information and detect.Generally speaking, after having started automatic detector 240 for one or more field apparatuss 250, I/O primary controller 220 drives " safety " electric current, for example 3.2mA to one or more field apparatuss 250.This electric current is enough to the power supply of the major part in one or more field apparatuss 250 to set up digital communication.Generally speaking, for example the electric current of 3.2mA is that one of safe reason is because it does not allow on one or more field apparatuss 250 or interior circuit, the work of for example valve circuit.This electric current is less than 4mA, and it is 0% output valve by 4-20mA electric current HART signal standards.
Behind automatic detector 240 forbidding, for any particular device 251-255 (default setting), be not powered to the path 230 of these particular devices, provide zero drive current the feasible digital configuration parameter that can not read this particular device.When automatic detector 240 starts to any given one or more field apparatuss 250 (perhaps, when automatic equipment all field apparatuss) detected, foundation was communicated by letter to gather the device identification/configuration data from one or more field apparatuss 250 with one or more field apparatuss 250.Numerical information/configuration parameter of gathering is also presented to the user then in system controller interface 223 or I/O master interface 225, above-mentioned interface also provides the option of startup/forbidding to the automatic detection of each field apparatus of one or more field apparatuss 250.
After having detected one or more field apparatuss 250,, still can use the low priority polling scheme to monitor continuously and read and detect one or more field apparatuss 250 with digital form as long as automatic detector 240 has started the automatic equipment detection.Therefore, any variation in 250 configurations of one or more field apparatuss is updated to system controller interface mentioned above 223 or I/O master interface 225 automatically, and is respectively applied for and reconfigures system controller 205 and/or I/O primary controller 220.This low priority poll should have less bandwidth and be written on I/O primary controller 220.In an embodiment of configuration-system 200, if one or more field apparatus 250 defectiveness in some cases, minimum (less than 4.0mA) electric current is eliminated by forbidding automatic detector 240 by system 200.Use the security that can both improve configuration-system 200 than the ability that drives the littler electric current of one or more field apparatus 250 required minimum currents, for example 3.2mA and forbidding automatic detector 240.
When being written into control strategy, forbidding automatic detector 240.This helps avoid the control of two separation of the output current of using I/O primary controller 220 simultaneously.In case be written into control strategy, can only be controlled to the electric current of one or more field apparatuss 250 by this control strategy.Under the situation of redundant I/O primary controller (not shown), automatic detector 240 characteristics are only effective on the main I/O primary controller 220 of current appointment.Yet secondary I/O primary controller can be remembered the user of each field apparatus 250 is selected and carries out automatic equipment immediately and detect when secondary I/O primary controller becomes main I/O primary controller by conversion.At last, when fault was arranged, automatic detector 240 selected can not hinder the performance of I/O primary controller 240, so that output changes to not power supply state of safety.
In one embodiment, being written into of control strategy do not have to disturb the electric current that applies by current path 183, and being written into of control strategy do not cover the configuration data that is loaded into system controller 205 and I/O primary controller 220 that obtains from one or more field apparatuss 250 yet.By with initial user configuration, promptly actual read the numerical information that is embedded in one or more field apparatuss 250 before the configuration information that has of user compare with physical device configuration data from one or more field apparatuss 250, can verify that therefore this initial user disposes.After relatively intacter, and may revise after the initial user configuration, the collection of the data of can begin one or more field apparatus 250 dynamic datas immediately, promptly collecting by real-time monitor event configuration-system 200, and need not the configuration with system controller 205 and I/O primary controller 220 of reading through powering completely and disposing reading at 4-20mA.
In one embodiment, one or more redundant I/O primary controllers support automatic detector 240 to select fully.If in main I/O primary controller, start automatic detector 240, and if it be out of order (switching to secondary I/O primary controller), then new main I/O primary controller can keep automatic detector 240 and select.In configuration-system 200,, then output is driven into the safe condition of some configuration if main I/O primary controller can not be communicated by letter with control system.Outage is promptly removed electric current and is helped to guarantee safe state configuration.The automatic detector 240 safety currents for example use of 3.2mA do not hinder this security activity.
With reference now to Fig. 6,, illustrated is to be suitable for the calcspar that uses automatic detector 240 and read the computer system 300 that is embedded in the digital configuration information in one or more field apparatuss 350.Computer system 300 comprises workstation computer 310 with storage medium 325 and the user interface 305 that is coupled to workstation computer 310.User interface 305 comprises can make the user that information and command selection are sent to the input equipment of workstation computer 310, for example keyboard or speech recognition subsystem.For example the cursor control device of mouse, trace ball or joystick cursor that the user is handled on the display screen is used for additional information and command selection are sent to workstation computer 310.Computer system 300 is presented on the image of one or more field apparatuss 250 and automatic detector 240 on system controller interface 223 or the I/O master interface 225, as demonstration on user interface 305, and the hard copy that produces one or more field apparatus 250 digital configuration data by printer.
Workstation computer 310 is coupled on the network 330.Network 330 also is coupled on the database 307.Network 330 also is coupled to from processor 340.Be coupled on the storer 315 from processor 340.Storer 315 is that storage control is from the data of the operation of processor 340 and the storer of instruction.The enforcement of storer 315 can comprise random access storage device (RAM), hard disk and ROM (read-only memory) (ROM).One of them of the assembly of storer 315 is program 320.Also be coupled on one or more field apparatuss 350 from processor 340.
Program 320 can comprise and be used to control from processor 340, system controller 205, I/O primary controller 220 or by using automatic detector 240 with the instruction to the Current Control of one or more field apparatuss 350 of safety current or HART current drives.Result as program 320 is carried out can read the digital configuration data one or more field apparatuss 250 in the storer 315 from processor 310, and can use this configuration data to come configuration-system controller 205 or I/O primary controller 220.Program 320 can be embodied as individual module or be embodied as a plurality of modules of cooperating operation each other.
When showing that program 320 is already loaded in the storer 315, can be on storage medium 325 to its configuration so that by network it is loaded in the storer 315 subsequently.Storage medium 325 can be for example tape, optical storage media, CD or a floppy disk of any conventional storage medium.Perhaps, storage medium 325 can be random access storage device or the electronic storage device that is arranged in the other types of remote storage system.
Then, dispose one or more field apparatuss 350 from processor 340 by I/O primary controller 345 usefulness configuration datas.Then, control and monitor one or more field apparatuss 350 from processor 340.I/O primary controller 345 can be interrelated with I/O primary controller 220.
In Fig. 7, in current generating system 400, be coupled on the current feedback circuit 420 from processor 410.All be coupled on the switch 430 from processor 410 and current feedback circuit 420.Switch 430 has a plurality of connections to field apparatus 440.Field apparatus 440 has the backfeed loop 450 that is coupled back from processor 410.
Generally speaking, from processor 410 indicator current generators 420 whether produce electric current in the safe mode, may for 3.2mA or standard 4.0 to 20.0mA in electric current.4-20mA is the command signal scope of standard.Apply electric current should for the field apparatus of which field apparatus or field apparatus 440 from processor 410 indicator cocks 430.Read the configuration data that is embedded in the field apparatus 440 by backfeed loop 450 then from processor 410.Can read this configuration data from processor 410, perhaps, other equipment can extract configuration data and then configuration data are sent to from processor 410.In one embodiment, this configuration data is sent to system controller 205 and I/O primary controller 220 (not illustrating) then in this figure.Then, use the configuration parameter that reads from field apparatus 440 to come configure field device 440 by switch 430, use low value safety current less than 4.0mA from processor 410.Then, current feedback circuit 440 is increased to 4.0 with electric current and arrives the 20.0mA scope so that field apparatus 440 work.
Should know that those skilled in the art can imagine various alternative, the combination of content of the present invention described herein and revise.The present invention will comprise all these alternative, modifications and variations that drop within the scope of the invention.
Claims (10)
1. a system (500,600,700) comprising:
Current feedback circuit (420), first current level of the configuration parameter that reads at least one field apparatus (250,350,440) is provided, wherein said first current level on the magnitude of current less than second current level, and wherein said first current level can not make described field apparatus (250,350,440) work, wherein said current feedback circuit (420) also provides described second current level, and wherein said second current level makes described field apparatus (250,350,440) work; And
Current sensor (410) is connected with described field apparatus (250,350,440) in circuit, and wherein said current sensor (410) detects the one or more described configuration parameter relevant with described first current level.
2. the system as claimed in claim 1 also is included in the system controller (205) that is connected to described current sensor (410) in the circuit.
3. the system as claimed in claim 1 wherein, disposes described field apparatus (250,350,440) and is decided by the one or more described configuration parameter of described field apparatus (250,350,440).
4. the system as claimed in claim 1, wherein, described first current level is approximately 4.0 milliamperes or littler.
5. the system as claimed in claim 1, wherein, described first current level is approximately 3.2 milliamperes or littler.
6. method comprises:
First electric current (420) of one or more configuration parameters is read in generation, less than second electric current (420) that can make at least one field apparatus (250,350,440) work, wherein said first electric current can not make described at least one field apparatus (250,350,440) work to described first electric current on the magnitude of current; And
By using described first electric current from described field apparatus (250,350,440), to read described configuration parameter (410).
7. method as claimed in claim 6 also comprises according to the described one or more configuration parameters that read described field apparatus (250,350,440) is configured (205,220,345,410).
8. method as claimed in claim 7 comprises also producing working current (420) that described working current has the current amplitude that is enough to make described field apparatus (250,350,440) work.
9. method as claimed in claim 7, wherein, described first electric current is approximately 4 milliamperes or littler.
10. method as claimed in claim 8, wherein, described second electric current is approximately 4.0 milliamperes or bigger.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US52666003P | 2003-12-04 | 2003-12-04 | |
| US60/526,660 | 2003-12-04 | ||
| US11/000,576 | 2004-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1914568A true CN1914568A (en) | 2007-02-14 |
| CN100445905C CN100445905C (en) | 2008-12-24 |
Family
ID=37722632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800411963A Expired - Fee Related CN100445905C (en) | 2003-12-04 | 2004-12-03 | System and method for the safe automatic detection of a field device communicating with current modulated signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100445905C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102292704A (en) * | 2008-12-05 | 2011-12-21 | 因万西斯系统股份有限公司 | Configurator with Embedded Firmware for Offline Instrument User Settings Implementation |
| CN105408945A (en) * | 2013-07-24 | 2016-03-16 | 恩德斯+豪斯流量技术股份有限公司 | Measuring instrument having switchable measuring and operating electronics system for transmitting measurement signal |
| CN111102997A (en) * | 2018-10-26 | 2020-05-05 | 克洛纳测量技术有限公司 | In-situ measuring device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5980078A (en) * | 1997-02-14 | 1999-11-09 | Fisher-Rosemount Systems, Inc. | Process control system including automatic sensing and automatic configuration of devices |
| US6618630B1 (en) * | 1999-07-08 | 2003-09-09 | Fisher-Rosemount Systems, Inc. | User interface that integrates a process control configuration system and a field device management system |
| US6618745B2 (en) * | 1999-09-10 | 2003-09-09 | Fisher Rosemount Systems, Inc. | Linking device in a process control system that allows the formation of a control loop having function blocks in a controller and in field devices |
| US7370239B2 (en) * | 2001-05-31 | 2008-05-06 | Fisher-Rosemount Systems, Inc. | Input/output device with configuration, fault isolation and redundant fault assist functionality |
-
2004
- 2004-12-03 CN CNB2004800411963A patent/CN100445905C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102292704A (en) * | 2008-12-05 | 2011-12-21 | 因万西斯系统股份有限公司 | Configurator with Embedded Firmware for Offline Instrument User Settings Implementation |
| CN102292704B (en) * | 2008-12-05 | 2016-11-09 | 因万西斯系统股份有限公司 | There is the configurator of embedded firmware for implementing off-line instruments user setup |
| CN105408945A (en) * | 2013-07-24 | 2016-03-16 | 恩德斯+豪斯流量技术股份有限公司 | Measuring instrument having switchable measuring and operating electronics system for transmitting measurement signal |
| US10379145B2 (en) | 2013-07-24 | 2019-08-13 | Endress + Hauser Flowtec Ag | Measuring device having a switchable measuring and operating electronics for delivering a measurement signal |
| CN111102997A (en) * | 2018-10-26 | 2020-05-05 | 克洛纳测量技术有限公司 | In-situ measuring device |
| CN111102997B (en) * | 2018-10-26 | 2023-04-25 | 克洛纳测量技术有限公司 | In-situ measurement device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100445905C (en) | 2008-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8731895B2 (en) | System and method for accessing and configuring field devices in a process control system | |
| CN101087118B (en) | A device and method for setting parameters of DC brushless electromotor speed-adjuster | |
| US20110153034A1 (en) | Universal human machine interface for automation installation | |
| WO1998018065A1 (en) | Method and device for managing equipment connected to controller of production machine | |
| CN101655802B (en) | System and method for downloading files in batches | |
| JP2003514403A (en) | Virtual laser operator | |
| JP2005275406A (en) | Method for diagnosing modular component | |
| CN101097563A (en) | System and method for realizing board centralized management and controlling | |
| CN101110709A (en) | Automated discovery and configuration of components on a computer network | |
| US9128480B2 (en) | Safety controller and method for controlling an automated installation | |
| CN103927138B (en) | Print system and its Method of printing and printer | |
| CN1914568A (en) | System and method for the safe automatic detection of a field device communicating with current modulated signal | |
| CN1779633A (en) | Apparatus and method to set the signaling rate of a switch domain disposed within an information storage and retrieval system | |
| US7409253B2 (en) | System and method for processing a substrate and program therefor | |
| US20090099693A1 (en) | System and method for control of emotional action expression | |
| CN111638672A (en) | Automatic control system of industrial machine table | |
| CN108021141A (en) | Unmanned aerial vehicle (UAV) control terminal and unmanned plane dynamic monitoring system operation interface display method | |
| US7257498B2 (en) | System and method for the safe automatic detection of a field device communicating with current modulated signal | |
| CN105182344A (en) | Sonar system and method | |
| US7120517B2 (en) | Integration assisting system and method | |
| CN108055724A (en) | LED street lamp power carrier control method and system | |
| EP1692577B1 (en) | System and method for the safe automatic detection of a field device communicating with current modulated signal | |
| CN112986725A (en) | Intelligent control terminal for testing power secondary equipment, testing method and electronic equipment | |
| CN112635087B (en) | Method for directly identifying actual state of fault equipment by nuclear power station operator station | |
| CN117425165B (en) | System for managing novel power communication board card by using intelligent terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20171203 |