WO2007086101A1 - プラント制御システムおよびインターロック要因特定方法 - Google Patents
プラント制御システムおよびインターロック要因特定方法 Download PDFInfo
- Publication number
- WO2007086101A1 WO2007086101A1 PCT/JP2006/301034 JP2006301034W WO2007086101A1 WO 2007086101 A1 WO2007086101 A1 WO 2007086101A1 JP 2006301034 W JP2006301034 W JP 2006301034W WO 2007086101 A1 WO2007086101 A1 WO 2007086101A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- interlock
- control system
- plant control
- plant
- diagnosis
- Prior art date
Links
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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/41835—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by programme execution
-
- 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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
-
- 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
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32239—Avoid deadlock, lockup
-
- 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
- G05B2219/30—Nc systems
- G05B2219/34—Director, elements to supervisory
- G05B2219/34336—Avoid deadlock, lock-up
-
- 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
- G05B2219/30—Nc systems
- G05B2219/35—Nc in input of data, input till input file format
- G05B2219/35287—Verify, check program by drawing, display part, testpiece
-
- 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
- G05B2219/30—Nc systems
- G05B2219/35—Nc in input of data, input till input file format
- G05B2219/35304—Real time analysis, check of program, just before machining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Definitions
- the present invention relates to a plant control system, and more particularly, to an apparatus for creating, displaying and diagnosing a plant control program.
- a system programmer creates, tests, and adjusts a program for automatically operating a plant as a control program for a plant control device, and then provides the program to the plant operator.
- the system programmer in order to control the plant safely, the system programmer must equip the control program with an interlock condition (permitted condition for device operation) for starting and operating plant equipment such as a rotating machine. Whether or not the interlock condition is satisfied is a natural concern of the plant operator, and it is required to present it to the plant operator in an easily understandable manner.
- the present invention provides:
- the present invention is a unified system in which the system programmer inserts the interlock diagnosis function block DIAG shown in Fig. 2 into the existing interlock circuit.
- the system programmer inserts the interlock diagnosis function block DIAG shown in Fig. 2 into the existing interlock circuit.
- FIG. 1 is a conceptual diagram showing the overall configuration of Embodiment 1 of the present invention.
- FIG. 2 is a sequence diagram showing an example of a control program including an interlock.
- FIG. 3 is an explanatory diagram showing a conversion logic of a ladder linear logic conversion unit.
- FIG. 4 An explanatory diagram showing internal data and operation of an interlock diagnosis function block.
- FIG. 5 is an explanatory diagram showing an example of an interlock diagnosis screen.
- FIG. 6 is a circuit diagram showing an example of a ladder circuit obtained as a result of a logical expression-ladder conversion unit.
- FIG. 7 is a circuit diagram of an interlock diagnosis circuit in FBD format according to Embodiment 2 of the present invention.
- FIG. 9 Circuit diagram of interlock diagnosis circuit in the same ISA format.
- FIG. 10 is a conceptual diagram showing the overall configuration of Embodiment 3 of the present invention.
- Source file part 32 Object file part, 33 Logical file part,
- Example 1 will be described with reference to FIGS.
- FIG. 1 is an overall configuration diagram of Embodiment 1 of the present invention.
- the first embodiment is roughly composed of three parts, and is composed of a controller CONT as a plant control device, a computer COMP as a control program creation and display device, and a LAN (local area network) connecting the two. ing.
- the controller CONT is roughly divided into two parts, and includes an object memory 40 for storing control program objects, and a standard processing unit 50 for writing, reading, and executing them. Further, the object memory 40 includes a data memory 41 and a code memory 42.
- the data memory 41 includes internal data of an interlock diagnosis function block DIAG described later in addition to normal variables.
- the code memory 42 includes an internal code of an interlock diagnosis function block in addition to a normal program code.
- the standard processing unit 50 includes a program load server unit 51 for arranging the object program of the control program sent via the LAN in the data memory 41 and the code memory 42, and a control in the controller CONT.
- a program execution processing unit 52 for executing the program that is, the code memory
- the process input / output processing unit 53 for supplying the process signal from the plant to the control program, and the interlock circuit state during execution of the control program The interlocking state reading server unit 54 of FIG.
- the computer COMP is roughly divided into three partial forces, and a control program editing means 10 for a system programmer to create a control program, and a database unit 30 for storing the control program and interlock logical expressions.
- the interlock diagnosis means 20 is used for the plant operator to know the cause of the failure of the interlock.
- control program editing means 10 includes a program compiler 11 for converting a source file of the control program into an object file, and a logic circuit for converting a specified interlock circuit in the control program into a logical expression.
- Ladder (LD) -Logical expression converter 12 and a program for sending control program object files to the controller It is composed of a mobile client unit 13.
- the database unit 30 includes a source file unit 31 for storing a source file of the control program, an object file unit 32 for storing an object file of the control program, and a specified interlock circuit. It consists of a logical expression file section 33 for storing logical expressions.
- the source file unit 31 includes a source of an interlock diagnosis function block described later.
- the object file section 32 includes internal data and codes of an interlock diagnosis function block described later.
- the interlock diagnosis means 20 is composed of a logic operation unit and a display unit.
- the logic operation section includes a logic expression reading section 21 for reading out the specified interlock logic expression from the file, and an interlock for reading out the past and current contact states of the specified interlock circuit.
- State reading client unit 22 logical expression and contact point factor identification logical expression conversion unit 23 for identifying the cause of failure of interlock, and logical expression composition for combining multiple logical expressions into one logical expression
- a logical expression-ladder (LD) conversion section 25 for drawing a ladder from a logical expression.
- the display unit displays the operation result of the logic operation unit.
- the system programmer uses the control program editing means 10 to create a control program including the interlock logic of the plant equipment.
- Fig. 2 is an example of a control program created using the ladder language specified in JISB3503 (or IEC61131-3), and includes the interlock circuit and start circuit that operate the rotating machine M30. Is shown.
- An interlock circuit that outputs 0 operating conditions and an M30 operation command circuit are provided.
- the top interlock circuit consists of contacts B1 to B5, interlock diagnostic function block DIAG, and coil C5.
- Contact C5 of this coil C5 is inserted into the second M30 operation interlock circuit. ing.
- This second M30 driving interlock The circuit consists of contacts C1 to C7, interlock diagnosis function block DIAG, and coil RUN_PRM.
- the contact RUN_PRM of this coil RUN_PRM is inserted in the third M30 operation command circuit.
- the M30 operation circuit consists of contacts START_PB, START_PRM, STOP_PB, M300_RUN and RUN_PRM, and coil M30_RUN.
- the interlock circuit has a feature of connecting an interlock diagnosis function block DIAG before the coil output.
- the control program is stored in the source file part 31 of the database part 30, and the source file saves the result generated by the program compiler 11 as the object file 32 of the database part 30. Is done.
- the ladder unit-logical expression conversion unit 12 searches for a ladder circuit connected to the input, generates an interlock logical expression, and generates a database unit. Save as 30 formula files.
- FIG. 3 shows the conversion logic of the ladder-logic expression conversion unit 12, which will be described below.
- the logic formula of the interlock is the logical sum of the power flows in all paths to the left bus, using the principle of power flow superposition of the ladder circuit connected to the input argument BI of the interlock diagnostic function block DIAG. Can be shown.
- This ladder-logic formula conversion unit 12 is composed of contacts C1 to C7, an interlock diagnosis function block DIAG, and a coil RUN_PRM. And the logical expression is the logical sum of 5 paths,
- Contact variable names for storing logical expressions as data are one-dimensional character string arrays.
- the data structure is as follows.
- the index of the one-dimensional array of contact variables is made to correspond to the column status of the two-dimensional array of logical expressions, and each logical product term is made to correspond to the row status.
- variable name of the interlock diagnosis function block for diagnosing this interlock circuit and the variable name of the coil that becomes the output of the logical expression, that is, the interlock signal, are added to the logical expression file of the database unit 30 for each interlock circuit.
- the diagnostic FB variable name is
- the system programmer After creating and saving the control program as described above, the system programmer writes the control program to the controller CONT and causes the control program to be executed.
- the program load client unit 13 takes out the object file 32 of the database unit 30 and delegates it to the program load server unit 51 of the controller CONT via the LAN.
- the program load server unit 51 receives this and places it on the data memory 41 and the code memory 42 of the object memory 40, and the program execution processing unit 52 executes this to execute the control program.
- the contact and coil signals of the interlock circuit are process signals to be input / output to / from the external controller CONT, and are supplied from the process input / output processing unit 53 to the program execution processing unit 52. Works.
- FIG. 4 shows the internal data and operation of the interlock diagnostic function block.
- the interlock diagnostic function block has internal data to operate. This internal data is included in function block variables such as interlock diagnosis function block _1 (DIAG_1) and interlock diagnosis function block _2 (DIAG_2) shown in FIG.
- the interlock diagnostic function block is used when the input BI changes from ON to OFF (that is, the interlock is not established).
- FIG. 5 shows an example of the interlock diagnosis means 20.
- the interlock list displays a list of interlock conditions for which the interlock diagnosis function block is specified in the control program. This is a list of interlock conditions stored as a logical expression file of the database unit 30, that is, a list of coil variables, and this is displayed. In the list, the current interlock condition is established or not established (Field Live), and the latest occurrence time (Field Faulted) when it is not established is displayed.
- the logical read unit 21 is used to know the address within the controller of the relevant interlock signal name power interlock diagnostic function block, and it is passed to the interlock state read client unit 22 for the interlock state read client unit 22 Is transferred to the interlock status reading server 54 of the controller CONT via the LAN, and the internal variables Permissive (current interlock status) and TimeStamp (the latest The lock list can be displayed by acquiring the lock failure occurrence time and displaying it in the field Live and Faluted respectively. This is updated and displayed at intervals of about 1 or 2 seconds. When one is selected from this interlock list, the corresponding interlock diagnosis screen is displayed. [0044] In the [Current] column, when the relevant interlock condition is not satisfied at the present time, an interlock diagram of only the contact that causes it is displayed as a ladder. This will be explained in the next step.
- the coil condition name of the interlock condition is given to the logical expression reading unit 21 and searched, and the logical expression data stored in the logical expression file unit 23 is obtained.
- the address of the coil variable of the interlock condition is given to the interlock status reading client unit 22 and the internal data CurrentBits (bit string of the current contact status of the interlock circuit) obtained by the interlock diagnostic function block on the controller is acquired. To do.
- the factor identification is performed as an internal process of the factor identification logical expression conversion unit 23.
- the factor contact variable obtained in 3) is a variable of a coil of another interlock circuit, if the interlock circuit is diagnosed by the interlock diagnosis function block, 1), 2), 3 ) To obtain a logical expression that identifies the cause.
- the multiple factor identification logic formulas selected in this way are given to the formula synthesis unit 24 to obtain the final factor identification formulas. be able to.
- the logical expression obtained in this way is rendered as internal processing of the logical expression-ladder conversion unit 25.
- the data of the logical expression given here is always in the form of sum of products, so that the logical product is drawn in correspondence with the ladder circuit with a straight line path and the whole logical sum at one point. I know it's fine.
- the drawing area is considered as a set of cells (Row, Col) indicated by row Row and column Col.
- FIG. 6 shows a ladder circuit obtained by this algorithm.
- the [Past Latest] field on the interlock diagnosis screen shown in FIG. 5 shows only the contact point that causes the relevant interlock condition to be unsatisfied in the past latest.
- the interlock diagram of is displayed with a ladder.
- the value to be acquired is the value of the internal data AfterBits (contact state when the interlock circuit is not established) held by the interlock diagnostic function block on the controller.
- the [Past Latest] column a ladder circuit specifying the failure factor is obtained, and further, the contact point that caused the interlock failure failure (first cause) can be indicated.
- the first embodiment provides the system programmer with a unified and simple programming method of inserting the interlock diagnosis function block shown in FIG. 2 into the existing interlock circuit. As shown in Figure 5, As a result, it can be provided in a form that can be understood at a glance as a ladder circuit for the cause contact and trigger contact at the time of failure of the interlock in the present and past.
- the latest latest indication of the failure to establish an interlock is to realize a plant operation support function that the plant operator simply responds to "why the plant equipment has automatically stopped but why it has stopped.”
- the latest indication of the failure trigger for interlock failure is to realize a plant operation support function that responds directly to the plant operator, “Plant equipment has been automatically stopped, but what is the first cause”.
- FIG. 7 to FIG. 9 show Embodiment 2 of the present invention.
- Example 1 gives an example of another expression format according to the background knowledge of the power plant operator showing an example of a ladder circuit. Examples of FBD symbols, MIL symbols, and ISA symbols that are commonly known logical circuit representations are shown in Figs. 7 to 9, respectively.
- the logical expression-ladder conversion unit 12 is different from FIG. 1 in that the logical expression-FBD conversion unit, logical expression-MIL conversion unit, logical expression- It is a point that can be replaced by the ISA conversion unit. This is because the factor identification logical formula is held in a data format independent of the drawing method, and since this logical formula is always held in a simple product sum form, logical AND and logical It is clear from the fact that the sum can always be expressed in the form of a logic circuit with a maximum of two stages.
- FIG. 10 shows Example 3 of the present invention.
- the first embodiment is separated into a computer COMP and a controller CONT, and in terms of connecting them via LAN, the performance corresponding to a large-scale plant is generally achieved, such as connecting multiple controllers on multiple LANs.
- the embodiment of FIG. 10 has a form in which the controller has a means in this computer COMP, and is one of simple derivations in which the present invention can be implemented.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2006336826A AU2006336826A1 (en) | 2006-01-24 | 2006-01-24 | Plant control system and method of specifying primary-factor for interlock |
DE112006003647T DE112006003647T5 (de) | 2006-01-24 | 2006-01-24 | Anlagensteuersystem und Anlaufsperrfaktor-Spezifikationsverfahren |
US12/161,223 US8656358B2 (en) | 2006-01-24 | 2006-01-24 | Plant control system and interlock factor specifying method |
PCT/JP2006/301034 WO2007086101A1 (ja) | 2006-01-24 | 2006-01-24 | プラント制御システムおよびインターロック要因特定方法 |
CN2006800515247A CN101361031B (zh) | 2006-01-24 | 2006-01-24 | 工厂控制系统和联锁原因确定方法 |
KR1020087015206A KR101040149B1 (ko) | 2006-01-24 | 2006-01-24 | 플랜트 제어 시스템 및 인터록 요인 특정 방법 |
Applications Claiming Priority (1)
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PCT/JP2006/301034 WO2007086101A1 (ja) | 2006-01-24 | 2006-01-24 | プラント制御システムおよびインターロック要因特定方法 |
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WO2007086101A1 true WO2007086101A1 (ja) | 2007-08-02 |
Family
ID=38308911
Family Applications (1)
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PCT/JP2006/301034 WO2007086101A1 (ja) | 2006-01-24 | 2006-01-24 | プラント制御システムおよびインターロック要因特定方法 |
Country Status (6)
Country | Link |
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US (1) | US8656358B2 (ja) |
KR (1) | KR101040149B1 (ja) |
CN (1) | CN101361031B (ja) |
AU (1) | AU2006336826A1 (ja) |
DE (1) | DE112006003647T5 (ja) |
WO (1) | WO2007086101A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107300873A (zh) * | 2017-06-22 | 2017-10-27 | 歌尔股份有限公司 | 控制设备、控制方法及装置 |
Families Citing this family (8)
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JP2008123427A (ja) * | 2006-11-15 | 2008-05-29 | Mitsubishi Electric Corp | 監視制御システムの表示方式 |
US10018999B2 (en) | 2011-09-09 | 2018-07-10 | Bnf Technology Inc. | System and method for measuring a health index of a plant |
KR101325638B1 (ko) * | 2011-09-09 | 2013-11-07 | 비앤에프테크놀로지 주식회사 | 하위 구성요소의 상태가 반영된 플랜트의 건강지수 측정방법 및 그 방법을 수행하기 위한 프로그램이 저장된 컴퓨터 판독 가능한 저장매체 |
US8839664B2 (en) * | 2012-04-06 | 2014-09-23 | Siemens Energy, Inc. | Detection and classification of failures of power generating equipment during transient conditions |
JP2015049683A (ja) * | 2013-08-30 | 2015-03-16 | 株式会社東芝 | 制御プログラム管理装置、情報処理装置、及び制御プログラム処理方法 |
CN109857049B (zh) * | 2017-11-30 | 2022-02-22 | 上海梅山钢铁股份有限公司 | 高炉阀门plc逻辑指令控制故障原因判断方法 |
WO2019123510A1 (ja) * | 2017-12-18 | 2019-06-27 | 三菱電機株式会社 | 表示制御装置、表示システム、表示装置、表示方法および表示プログラム |
JP7245742B2 (ja) * | 2019-07-25 | 2023-03-24 | 東芝三菱電機産業システム株式会社 | Scadaウェブhmiサーバ装置 |
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2006
- 2006-01-24 DE DE112006003647T patent/DE112006003647T5/de not_active Withdrawn
- 2006-01-24 CN CN2006800515247A patent/CN101361031B/zh active Active
- 2006-01-24 AU AU2006336826A patent/AU2006336826A1/en not_active Abandoned
- 2006-01-24 WO PCT/JP2006/301034 patent/WO2007086101A1/ja active Application Filing
- 2006-01-24 KR KR1020087015206A patent/KR101040149B1/ko active IP Right Grant
- 2006-01-24 US US12/161,223 patent/US8656358B2/en active Active
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JPH10240338A (ja) * | 1997-02-28 | 1998-09-11 | Toshiba Corp | ガイダンス機能付き監視・制御装置 |
JPH1124728A (ja) * | 1997-07-02 | 1999-01-29 | Hitachi Ltd | プラント状態予測装置 |
JP2006024015A (ja) * | 2004-07-08 | 2006-01-26 | Toshiba Corp | プラント制御システムおよびインターロック要因特定方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107300873A (zh) * | 2017-06-22 | 2017-10-27 | 歌尔股份有限公司 | 控制设备、控制方法及装置 |
CN107300873B (zh) * | 2017-06-22 | 2020-07-03 | 歌尔股份有限公司 | 控制设备、控制方法及装置 |
Also Published As
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CN101361031B (zh) | 2013-07-31 |
DE112006003647T5 (de) | 2009-01-02 |
US20100241246A1 (en) | 2010-09-23 |
KR20080072735A (ko) | 2008-08-06 |
AU2006336826A1 (en) | 2007-08-02 |
CN101361031A (zh) | 2009-02-04 |
US8656358B2 (en) | 2014-02-18 |
KR101040149B1 (ko) | 2011-06-09 |
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