JP2011242954A - Device for supporting design of plant control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for displaying inconsistency between a registered content of I/O data associated with a plant and a registered content of created control logic on a screen, in a device for supporting design of a plant control program.SOLUTION: A device includes: an I/O data file 17 for storing I/O data for defining an input/output signal with a plant; a logic data file 20 for storing logic data which is a control program of the plant and created by using the I/O data; and a data check unit 19. The data check unit 19 checks inconsistency between the I/O data stored in the I/O data file 17 and the I/O data used in the logic data, and the check result is displayed on a display device 16.

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control program design support device for a plant monitoring and control device for a thermal power plant or a hydroelectric power plant, and more particularly to a plant control program design support device that can manage I / O data and control logic in a consistent manner. It is.

  In a computer system that generates a conventional plant control program in a graphic input format, a task control unit, an I / O data registration unit, a logic editing unit, and an I / O data management unit are provided in the computer body and input to the task control unit A technique for connecting I / O data and control program editing work by connecting a device and a window display device and simultaneously displaying a plurality of processing and input result display windows on the window display device screen is shown. (For example, Patent Document 1).

JP 04-280301 A

  However, in the technique disclosed in Patent Document 1, the editing operator must determine whether or not the I / O data used for the program editing work is registered in the I / O data registration unit. For this reason, even if inconsistency occurs between the I / O data registration contents and the logic registration contents, there is a problem that a defective control program is edited unless the editing operator notices it.

  The present invention has been made to solve the above-described problems. By checking the I / O data file registration contents and the logic data file registration contents and displaying the inconsistency of the registration contents on the screen, The purpose is to improve control program design work efficiency and program quality.

  A plant control program design support device according to the present invention includes a computer, an input device, and a display device, and the computer edits a plant control program by input from the input device. I / O data registration unit that defines input / output data, registers and stores in an I / O data file, I / O data management unit that manages input / output data to the I / O data file, A logic data editing unit for editing the logic data of the plant using the stored I / O data, a logic data file for storing the edited logic data, and input / output data to the logic data file are managed. Controls the execution of the logic data management unit, the I / O data registration unit and the logic editing unit, and assigns them from the outside. A task control unit for controlling only a signal and a data check unit, and the data check unit is used for the I / O data stored in the I / O data file and the logic data. Consistency with existing I / O data is checked, and the task control unit displays the checked information on the screen of the display device.

  According to the present invention, since the configuration as described above is adopted, the consistency between the I / O data registered in the I / O data file and the edited logic data is checked, and inconsistency is detected. In this case, the inconsistency can be easily extracted, and as a result, the control program creation work efficiency and the quality of the program can be improved.

1 is a block diagram showing a plant control program design support apparatus according to Embodiment 1. FIG. 3 is a flowchart showing an operation according to the first embodiment. 10 is a flowchart showing an operation according to the second embodiment. 10 is a flowchart illustrating an operation according to the third embodiment. 10 is a flowchart showing an operation according to the fourth embodiment. FIG. 20 is a diagram illustrating an example of a logic conversion rule according to the fourth embodiment.

Embodiment 1 FIG.
Hereinafter, the first embodiment will be described with reference to the drawings.
FIG. 1 is a block diagram showing a plant control program design support apparatus according to the first embodiment. In FIG. 1, the control program design support device includes a computer 10, a window display device 16 that is a display device, and an input device 15. The computer 10 includes a task control unit 11, an I / O data registration unit 12, a logic editing unit 13, an I / O data management unit 14, an I / O data file 17, a logic data management unit 18, a data check unit 19, A logic data file 20 is provided. An input device 15 and a window display device 16 are connected to the task control unit 11.

  The input device 15 includes, for example, a keyboard, a pointing device, and the like, and includes an alphanumeric character input function for inputting an I / O data name and various function keys for processing selection. The window display device 16 displays a plurality of windows on the display screen, and performs redisplay (echo back) for confirming the processing result and input value.

Next, the configuration of each part of the computer 10 will be described.
The task control unit 11 controls execution of an I / O data registration unit 12 and a logic editing unit 13 which will be described later, and controls an interrupt signal from the outside to the computer 10. The I / O data registration unit 12 has a function of defining and registering I / O data. The logic editing unit 13 arranges “elements” obtained by graphicizing the control calculation processing on the display screen of the window display device 16 and edits the control elements by connecting the “elements” with lines to create a logic data file. To do. The I / O data management unit 14 manages and controls the input / output of data in the I / O data file 17. The I / O data file 17 registers and stores data such as a name related to an input signal to the plant, a registration number, and a channel number where the I / O point is located. The logic data management unit 18 manages and controls the entry and exit of data in the logic data file 20. The logic data file unit 20 stores the logic data file created by the logic editing unit 13.

  The data check unit 19 accesses the I / O data file 17 via the I / O data management unit 14 and accesses the logic data file 20 via the logic data management unit 18. It is determined whether the data registered and stored in the O data file 17 is used in the logic data file 20.

Next, the operation will be described.
First, the task control unit 11 selects a logic editing process using the function key of the input device 15, and the logic editing unit 13 starts logic data editing work for the control program. As described above, the logic editing unit 13 arranges “elements” obtained by graphicizing the control calculation processing on the display screen of the window display device 16, and edits the logic data by connecting the elements with lines.
The logic data created by the logic editing unit 13 is managed by the logic data management unit 18. The data check unit 19 inquires the I / O data management unit 14 and the logic data management unit 18 to check the consistency between the I / O data file 17 and the logic data file 20. Details of this will be described later with reference to FIG.
On the other hand, when it becomes necessary to register I / O data during editing of the control program, I / O data registration processing is selected by the function key of the input device 15, and the I / O data registration unit 12 performs the I / O data registration processing. The / O data input process is also executed in parallel. However, the term “parallel” here is apparent, and the task control unit 11 actually controls the central processing unit (CPU) (not shown) so that a plurality of processing units can be used in a time division manner.

Next, an operation based on the flowchart shown in FIG. 2 will be described.
In ST1, the task control unit 11 is switched to either I / O data registration processing or logic editing processing in response to a signal from the input device 15. In the case of I / O data registration processing, in ST2, the I / O data registration unit 12 defines and registers input I / O data. In ST3, data is stored in the I / O data file 17 via the I / O data management unit 14. On the other hand, in the case of the logic editing process, in ST4, the logic editing unit 13 inputs I / O data and logic data, and generates a logic data file in ST5.

Next, the operation of the I / O data check unit 19 having the characteristic feature of the present invention will be described in ST6 to ST12.
In ST6, the data check unit 19 reads the logic data file 20 from the data management unit 18. This logic data file 20 is composed of a plurality of logic sheets which are one execution unit. In ST7, a signal used for input is extracted into each logic sheet constituting the logic sheet. In ST8, the logic sheet output signal (output data) is searched from the logic data file 20 using the input signal (input data) of each logic sheet as a key. In ST9, an input signal not generated as an output signal from any logic sheet is created and output as an ungenerated input signal list.
Next, in ST10, the data check unit 19 reads the I / O data file 17 via the I / O data management unit 14, and the signal registered in the I / O data file 17 and the ungenerated input signal in ST11. Contrast with list. In ST12, the I / O data number in the ungenerated input signal list is marked in the I / O data file 17 by color change or the like, and the information is transmitted to the window display device 16 via the task control unit 11, and the window display device 16 Displays the I / O data number.

  As described above, according to the first embodiment, when the I / O data is not used in the logic data creation even though it is registered in the I / O data file 17, the program is automatically executed. Since inconsistency is detected, the I / O data number is marked and displayed on the window display device 16, the quality of the control program can be improved and the work efficiency of creating the control program is improved.

Embodiment 2. FIG.
Next, the second embodiment will be described with reference to FIG.
In the first embodiment described above, an inconsistency that the I / O data is not used in the logic data creation even though the I / O data is registered in the I / O data file 17 is detected. Thus, the corresponding I / O data number is displayed on the window display device 16, but the second embodiment detects the inconsistency that the logic data creation is missing, and the corresponding logic data is displayed. Are displayed on the window display device 16, and the logic data stored in the logic data file 20 are also displayed together.

The operation of the I / O data check unit 19 will be described with reference to the flowchart shown in FIG. Since ST1 to ST5 in FIG. 2 of the first embodiment described above are the same in the second embodiment, description of ST1 to ST5 shown in FIG. 2 in FIG. 3 is omitted. In FIG. 3, ST6 to ST8 are the same as FIG.
In ST9, an input signal not generated as an output signal from any logic sheet and a logic sheet number are output as an ungenerated input signal list. In ST10, using the output signal of the logic sheet as a key, a signal that is not used for the input signal of any logic sheet is output as an unused signal list. In ST11, the I / O data file 17 is read via the I / O data management unit 14, and in ST12, the I / O data file 14 is searched using the input signal list as a key. In ST13, the ungenerated input signal and the unused signal for which the defined input signal is not found in the searched I / O data file are displayed on the information logic sheet and displayed on the window display device 16.

  As described above, according to the second embodiment, when the input signal is not defined in the logic data file 20, that is, when the I / O data is not used or the logic output signal is not used. Inconsistencies are displayed on the screen, improving the quality and work efficiency of the control program.

Embodiment 3 FIG.
Next, Embodiment 3 will be described with reference to FIG.
In the third embodiment, an input signal that is not registered in the I / O data file 17 even though it is used as an input signal in the logic data file 20 is automatically registered in the I / O data file 17. This is an example. The operation of the I / O data check unit 19 will be described with reference to the flowchart shown in FIG. In FIG. 4 as well, the description of ST1 to ST5 shown in FIG.
In FIG. 4, ST6 to ST12 are the same as those in FIG. In ST13, when an input signal is found in the I / O data file 17, the I / O data number is recorded in the input signal list together with the input sheet number, and the input signal list is output. In ST14, the input signal for which the defined input signal is not found in the searched I / O data file 17 is recorded in the logic data file 20 and displayed on the window display device 16. At this time, the unused signal list generated in ST10 is also displayed.
In ST15, an input signal with an undefined I / O data number is detected with reference to the input signal list and additionally registered in the I / O data file 17.

  As described above, according to the third embodiment, even when logic data is created without registering I / O data in the I / O data file 17, an I / O in which the data check unit 19 is not recorded. Since data is detected and additionally registered in the I / O data file 17, inconsistencies in the program can be automatically repaired.

Embodiment 4 FIG.
Next, a fourth embodiment will be described with reference to FIG.
FIG. 5 is a block diagram showing a control program design support apparatus according to the fourth embodiment. This control program design support device automatically generates logic data from the I / O data file 17 by registering the basic pattern as a model of logic data in advance and the association with the I / O data file as conversion rules. This is different from the first to third embodiments described above. In order to exhibit such a function, the computer 10a shown in FIG. 5 adds a logic data conversion rule registration unit 31, a logic data conversion rule to the computer 10 of the control program design support apparatus shown in FIG. A logic data conversion processing unit 33 is additionally provided from the file 32 and the I / O data. Therefore, the description other than the added part is omitted.

The logic data conversion rule registration unit 31 registers the association between a basic pattern serving as a model of logic data and an I / O data file in advance as a conversion rule, and generates a logic data conversion rule file 32. The I / O data / logic data conversion processing unit 33 refers to the logic data conversion rule file 32, inputs I / O data from the I / O data file 17, and automatically generates logic data (I / O data / logic The result is stored in the logic data file 20 via the logic data management unit 18. FIG. 6 shows a conversion example of the operation logic of the switch together with a logic data conversion table registered as a conversion rule in the logic data conversion rule registration unit 31.
As described above, according to the fourth embodiment, by registering a conversion rule, logic data can be automatically generated only by creating an I / O data file. In the case of generation, work efficiency is improved.

10, 10a computer, 11 task control unit, 12 I / O data registration unit,
13 logic editing unit, 14 I / O data management unit, 17 I / O data file,
18 logic data management unit, 19 data check unit,
20 logic data file, 31 logic data conversion rule registration part,
32 Logic data conversion rule file,
33 I / O data / logic data conversion processing unit.

Claims (5)

In a plant control program design support device comprising a computer, an input device and a display device,
The computer edits a plant control program in response to input from the input device. The computer defines input / output signals for the plant and registers and stores the I / O data in an I / O data file. A registration unit, an I / O data management unit for managing input / output signals to the I / O data file, and logic data for editing the plant logic data using the registered and stored I / O data Execution of an editing unit, a logic data file for storing the edited logic data, a logic data management unit for managing input / output signals to the logic data file, the I / O data registration unit, and the logic editing unit And a task control unit that controls an interrupt signal from the outside and a data check unit are provided. The check unit checks the consistency between the I / O data stored in the I / O data file and the I / O data used in the logic data, and the checked information The task control unit displays on the screen of the display device a plant control program design support device. In addition to the computer, a logic data conversion rule registration unit that generates a logic data conversion rule file by registering a basic pattern as a model of logic data and an association with the I / O data as a conversion rule, An I / O data / logic data conversion processing unit that takes in I / O data from the I / O data file and generates logic data with reference to the logic conversion rule file; The plant control program design support apparatus according to claim 1, wherein the generated logic data is stored in the logic data file. The data check unit is for checking and extracting I / O data that is not used in the logic data file from the I / O data registered and stored in the I / O data file. 3. The information of I / O data that has not been displayed is displayed on the I / O data file and displayed on the screen of the display device. 4. Plant control program design support device. The data check unit checks whether or not I / O data used in the logic data file is registered and stored in the I / O data file, and the I / O data that is not registered or stored is checked. 3. The plant control program design support apparatus according to claim 1, wherein O data is displayed on the logic data file and displayed on the screen of the display device. 4. The I / O data that is not registered or stored in the I / O data file is displayed on the logic file and displayed on the screen of the display device, and the I / O data management unit performs the I / O data management unit. 5. The plant control program design support apparatus according to claim 4, wherein / O data is registered and stored in the I / O data file.

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