JP2011227823A - Control program creation apparatus and method for driving the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a program creation apparatus capable of reducing system programmer's loads.SOLUTION: The program creation apparatus includes: a control program edition part 110; a first database 150 for storing a control program and managing the control program by key information set in each control program; a second database 160 for storing the control program and managing the control program by the key information; a file backup part 120 for recording the control program in the second database 160; a display device 16 for presenting an operation confirmation picture of an object file written in a controller 200; and input devices 12, 14 for outputting an operation signal operated by a user to the control program edition part 110. The control program edition part 110, after writing the object file in the controller 200, allows the display device 16 to present the operation confirmation picture and to record the control program corresponding to the key information in the second database 160.

Description

  The present invention relates to a control program creation device and a control program creation method.

  The system programmer provides a program for automatically operating the plant as an application program (hereinafter referred to as “control program”) of the plant control apparatus to the plant operator after creation, testing, and adjustment. The system programmer debugs the control program when adjusting the control program in order to control the plant safely.

  The control program is described using a language such as LD (ladder) or FBD (function block diagram) defined in IEC61131-3, for example. When debugging the control program, the operation of the control program is checked by replacing the control program unit or forcibly changing the contact (A contact, B contact, etc.) or variable value in the online state. At the time of this operation check, it is required that the control program creation device be presented in an easy-to-understand manner to the system programmer so as not to cause an erroneous operation.

  For example, Patent Document 1 proposes an engineering system that can support work frame design according to a hierarchical structure of process applications without depending on a controller device.

Japanese Patent Laid-Open No. 11-85490

  In the control program creation device, for example, a source / object method is adopted as the configuration of the control program in order to improve expression, portability, and reusability. The system programmer describes the control program language specified in IEC61131-3 in the control program source and extended information (graphics, comments, etc.) that are not directly related to program execution, and creates objects that can be executed by the plant controller. Execution and operation check are performed by writing after generation. In order to confirm the operation of the control program, the system programmer needs a control program source that is the basis of the object loaded in the plant control apparatus.

  Therefore, unless the control program source is artificially backed up, it is not possible to confirm the operation of the control program before the modification written in the plant control device during the modification of the control program.

  Further, when hardware configuration information (program code) and input / output signal information (program data) are managed as source files that are not written in the plant control device, there are problems similar to those of the control program.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a program creation device and a control program creation device driving method that reduce the burden on the system programmer.

  A program creation device according to an embodiment is a program creation device that writes an object file of a control program to a controller via a network, and a compiler that compiles a source file of the control program and converts it into an object file; A control program editing unit comprising: a communication means for sending the object file to the controller; the source file and the object file are stored; and the source file and the object file are set for each control program. The first database managed by the key information, the object file of the control program written in the controller, and the corresponding source file are stored, and the source file and the object are stored. A second database for managing files by key information set for each control program, the file backup unit for recording the object file and the source file of the control program in the second database, and A display device that presents an operation confirmation screen for the object file written in the controller; and an input device that is operated by a user and outputs an operation signal to the control program editing unit. Writing the object file to the controller and presenting it on the operation confirmation screen to the display device, and writing the object file and presenting the operation confirmation screen asynchronously, the corresponding object file and source file by key information Which is a by a control program creating device configured to request the file backup unit to record in the second database.

  ADVANTAGE OF THE INVENTION According to this invention, the drive method of the program creation apparatus and control program creation apparatus which reduce the burden of a system programmer can be provided.

It is a figure which shows roughly the example of 1 structure of the control program creation apparatus concerning one Embodiment of this invention. It is an example of a control program created using a language defined in JISB3503 (or IEC61131-3). It is a figure which shows roughly the example of 1 structure of the database of the control program creation apparatus which concerns on one Embodiment of this invention. It is a figure for demonstrating an example of the operation | movement which backs up automatically the source information used as the basis, and the written object information in the background, when the object information of a control program is written in the controller. It is a figure for demonstrating an example of the operation | movement which reflects a corresponding location on a backup automatically in the background when a part of instruction word is changed at the time of a test and adjustment of a control program. It is a figure for demonstrating an example of the operation | movement which confirms the operation | movement confirmation of the control program before the modification written in the controller during the modification of a control program. It is a figure for demonstrating an example of the operation | movement which compares the control program in remodeling, and the backup information before remodeling. It is a figure for demonstrating an example of the operation | movement which prohibits the illegal program display and change of a middle progress during the backup process of a control program.

  Hereinafter, a program creation device according to a first embodiment of the present invention will be described with reference to the drawings.

    FIG. 1 schematically shows a configuration example of a program creation apparatus according to an embodiment of the present invention. The program creation device according to the present embodiment includes a computer 100 including a control program editing unit 110, a first database 150, and a second database 160, a mouse 12 and a keyboard 14 as input devices of the computer 100, And a display device 16 as an output device of the computer 100. The computer 100 and the controller 200 of the plant control apparatus are connected to a network 300.

  The controller 200 of the plant control apparatus has an object memory 210 for storing an object file of a control program, and a standard processing unit 220 for writing, reading, and executing these objects. Further, the object memory 210 has a data memory 212 and a code memory 214.

  The standard processing unit 220 is a program load server unit 222, a program execution processing unit 224 for executing a control program recorded in the object memory 210, and a process signal for giving a process signal from a plant to be controlled to the control program. And a process input / output processing unit 225.

  The program load server unit 222 arranges the object file of the control program sent from the computer 100 via the network 300 in the data memory 212 and the code memory 214 of the object memory 210.

  The computer 100 includes a control program editing unit 110 for a system programmer (user) to create a control program, a file backup unit 120, a file comparison unit 130, a file exclusion unit 140, and a first database that stores the control program. 150 and a second database 160 in which a control program for backup is stored.

  The control program editing unit 110 includes a program compiler 112 and a program load client unit 114. The program compiler 112 performs a compile process for converting the source file of the control program into an object file. The program load client unit 114 is communication means for sending 200 an object file converted from a source file by the program compiler 112 to the controller.

  The file backup unit 120 performs source file backup processing, which will be described later. The file comparison unit 130 performs a comparison process that compares the control program saved by the backup process with the edited control program. The file exclusion unit 140 performs an exclusion process for prohibiting display of the control program being backed up to others.

  The first database 150 includes a source file unit 152 for storing a control program source file and an object file unit 154 for storing a control program object file.

  Similarly, the second database 160 includes a source file unit 152 for storing a control program source file and an object file unit 154 for storing an object file of the control program.

  FIG. 2 shows an example of a control program created using a language defined by JISB3503 (or IEC61131-3). The structure of the control program can be assembled by combining diagrams corresponding to the program language on the screen of the display device 16. For example, each of C1 to C7 corresponds to an instruction word described in a language defined by JISB3503 (or IEC61131-3).

  The system programmer assembles the diagram and creates a control program source file. The system programmer compiles the source file with the program compiler 112 to create an object file.

  FIG. 3 shows a configuration example of the first database 150. A source file of the control program is recorded in the source file portion 152 of the first database 150. The source file unit 152 includes control program information 152A, a program code 152B in which an instruction word and its structure are defined, and program data 152C in which internal variables used in the control program are defined.

  Program code 152B and program data 152C for one control program are composed of a plurality of data. Program code 152B and program data 152C are managed in a hierarchical structure. The highest hierarchy is the control program information 152A, and one unique key information is assigned to one control program. The control program information 152A includes key information, a program name, and a program type. The key information is information combining numbers and characters, for example.

  The lower layer program code 152B and the program data 152C are associated with the control program information 152A by this key information. The program code 152B manages each instruction word, and includes sub key information, instruction word position information, instruction word code, and reference key information. The program data 152C manages input signals and output signals of the control program, and includes sub key information, internal signal names, signal type names, comment information, and reference key information. The sub key information is unique information given to each instruction word of the control program, for example.

  Also in the second database 160, control programs are managed in the same hierarchical structure as the first database 150. The control program of the second database 160 backed up from the first database 150 is managed with the same key information as the control program information 152A of the first database 150.

  The operations of the computer 100 and the controller 200 will be described below. The system programmer creates a control program using the control program edit screen displayed on the display device 16. When the system programmer saves the control program, the control program is stored in the source file unit 152 of the first database 150, and the object file obtained by compiling the source file with the program compiler 112 is the object file of the first database 150. Save to the unit 154.

  After creating, storing, and compiling the control program as described above, the system programmer writes the object file to the controller 200 via the network 300 and causes the control program to be executed.

  When the object file is written in the controller 200, the computer 100 and the controller 200 read the object file from the first database 150 by the program load client unit 114 and sends it to the program load server unit 222 of the controller 200 via the network 300. To do. The program load server unit 222 receives the object file and places it on the data memory 212 and the code memory 214 of the object memory 210, and the program execution processing unit 224 executes this to execute the control program.

  In the program creation device according to the present embodiment, a control program is written into the controller 200, and the control program is backed up simultaneously with the operation check and the debug operation.

  FIG. 4 is a diagram for explaining an example of an operation for automatically backing up the source file and the written object file as a basis when the control program object file is written in the controller 200.

  The control program editing unit 110 reads the object file of the designated control program from the object file unit 154 of the first database 150 (Step 1A), writes the object file to the controller 200 (Step 2A), and also stores it in the file backup unit 120. A signal for requesting the backup processing of the control program is output together with the key information of the control program (step 3A).

  After receiving the request signal, the file backup unit 120 returns control to the control program editing unit 110 (step 4A), and is asynchronous with the write operation and the operation check (online monitor) operation (step 5A) in the control program editing unit 110. Then, the control program corresponding to the key information of the first database 150 is identified, and the object file and the source file of the identified control program are read from the first database 150 and written to the second database 160 (step 5′A). The control program editing unit 110 checks the operation of the control program written to the controller 200 (online monitoring) after the backup request to the file backup unit 120 and before the copy of the file backup unit 120 is completed.

  As described above, in the program creation apparatus according to the present embodiment, the system programmer automatically reads out the control program, writes it into the controller 200, and confirms the operation of the control program. Is done. In this way, the backup process of the corresponding control program is performed asynchronously with the control program writing, reading, and operation check operations, thereby completing the operation without requiring additional time for the backup process. Can do.

  That is, according to the program creation device according to the present embodiment, a program creation device and a program creation device drive method that reduce the burden on the system programmer at the time of the operation check of the program by automatically backing up the control program. Can be provided.

  Next, a program creation device according to a second embodiment of the present invention will be described with reference to the drawings. In the following description, the same components as those of the above-described program creation device according to the first embodiment are denoted by the same reference numerals and description thereof is omitted. The program creation device according to the present embodiment has the same configuration as the program creation device according to the first embodiment described above.

  FIG. 5 is a diagram for explaining an operation for changing a part of the instruction word of the control program in the program creation device according to the present embodiment. In the operation check operation of the control program, the system programmer further includes means for automatically changing a part of the control program stored in the second database 160 when the system programmer changes a part of the control program.

  At the time of operation check (online monitor) (step 1B) of the control program, the control program editing unit 110 reads the control program corresponding to the key information from the first database 150, and performs testing and adjustment. When the system programmer changes the instruction word partially during the test and adjustment, the instruction word information corresponding to the sub key information in the control program corresponding to the key information in the first database 150 is partially changed (step 2B).

  After the partial change of the control program stored in the first database 150 is completed, the control program editing unit 110 sends the same information in the second database 160 to the file backup unit 120 together with the key information, subkey information, and command change information. A partial change to the same instruction word of the control program is requested (step 3B).

  After receiving the request, the file backup unit 120 temporarily stores the requested key information, subkey information, and command change information in a queue (FIFO) (step 4B), and returns control to the control program editing unit 110 ( Step 5B).

  The file backup unit 120 performs partial changes to the control program stored in the second database 160 in order from the oldest change information temporarily stored in the queue, asynchronously with the operation confirmation process of the control program editing unit 110. (Step 6B).

  As described above, the program creation apparatus according to the present embodiment automatically backs up the partial change of the corresponding control program only by performing a test and adjustment operation on the control program similar to the conventional one to the system programmer. In addition, by temporarily storing partial change information in a queue, it is possible to cope with changes in tests and adjustment operations performed at short intervals.

  That is, according to the program creation device according to the present embodiment, the program creation device and the program that can obtain the same effect as the program creation device according to the first embodiment described above and further reduce the work load of the system programmer. A driving method of the creation apparatus can be provided.

  Next, a program creation device according to a third embodiment of the present invention will be described with reference to the drawings. The program creation device according to the present embodiment has the same configuration as the program creation device according to the first embodiment described above.

  FIG. 6 is a diagram for explaining an operation for confirming the operation of the control program written in the controller 200 during the modification of the control program. The program creation device according to the present embodiment further includes display switching means (not shown) for switching display between the control program being modified and the control program before the modification.

  In the program creation device according to the present embodiment, when the control program editing screen is activated by designating the control program by the control program name or key information on the control program activation screen, the control program editing unit 110 displays the key of the designated control program. A control program corresponding to the information is read from the first database 150 and a control program edit screen is displayed on the display device 16.

  When switching to the backup display from the control program editing screen, the control program for the same key information is read from the second database 160 and displayed on the backup control program editing screen. When the backup control program edit screen is switched to the same control program edit screen display, the control program for the same key information is specified, the specified control program is read from the first database 150, and the control program is read. Display the edit screen.

  When switching to the backup display from the control program start screen and specifying the control program with the control program name or key information and starting the control program edit screen for backup, specify the control program for the key information and specify The read control program is read from the second database 160, and a control program edit screen for backup is displayed.

  As described above, in the program creation device according to the present embodiment, the system programmer can easily switch from displaying the control program being modified to displaying the control program before modification written in the controller 200. it can. Therefore, according to the program creation device according to the present embodiment, the system programmer can easily check the operation of the control program before modification written in the controller 200. Further, by managing the control program being modified and the control program that was backed up before the modification with the same key information, they can be easily associated with each other.

  That is, according to the program creation device according to the present embodiment, the program creation device and the program that can obtain the same effect as the program creation device according to the first embodiment described above and further reduce the work load of the system programmer. A driving method of the creation apparatus can be provided.

  Next, a program creation device according to a fourth embodiment of the present invention will be described below with reference to the drawings. The program creation device according to the present embodiment has the same configuration as the program creation device according to the first embodiment described above.

  FIG. 7 is a diagram for explaining an operation for comparing the control program being modified with the control program backed up before modification. The file comparison unit 130 is configured to compare the control program being remodeled with the control program backed up before remodeling.

  When the system programmer operates the keyboard 14 or mouse 12 to request the computer to compare the control program being modified with the control program before the modification, the file comparison unit 130 controls the key information as comparison source data. The source information and object information of the program are read from the first database 150. Subsequently, the file comparison unit 130 reads the source information and object information of the control program for the same key information from the second database 160 as comparison destination data.

  The file comparison unit 130 compares the source information and object information of the read comparison source data and comparison destination data. Further, the file comparison unit 130 compares the object information of the read comparison source data or comparison destination data with the object information read from the standard processing unit 220 of the controller 200.

  The file comparison unit 130 compares the control programs and displays the comparison result on the screen of the display device 16. For example, the file comparison unit 130 displays only parts with different control programs before and after modification, or displays different parts with colors and tones different from those of other parts. Provide results.

  As described above, the program creation device according to the present embodiment provides a program creation device that allows a system programmer to easily compare with a control program before modification simply by specifying the control program being modified. can do. Further, by comparing the source information of the control program being modified with the source information of the control program before the modification, a more detailed comparison including comment information that is not written in the controller 200 can be performed.

  That is, according to the program creation device according to the present embodiment, the program creation device and the program that can obtain the same effect as the program creation device according to the first embodiment described above and further reduce the work load of the system programmer. A driving method of the creation apparatus can be provided.

  Next, a program creation device according to a fifth embodiment of the present invention will be described below with reference to the drawings. The program creation device according to the present embodiment has the same configuration as the program creation device according to the first embodiment described above.

  FIG. 8 is a diagram for explaining an operation for prohibiting an illegal program display and change in the middle while the control program backup process is being performed. The program creation device according to the present embodiment is configured such that the file exclusion unit 140 performs exclusion of the corresponding control program before the backup process of the control program and the change process of the control program are completed. The file exclusion unit 140 includes a management table that manages key information of the exclusive control program.

  When the system programmer operates the keyboard 14 or the mouse 12 on the control program editing screen (X) and requests the file backup unit 120 to back up the control program corresponding to the key information (A) (step 1C), the file backup unit 120 requests the file exclusion unit 140 to perform exclusive processing of the control program corresponding to the key information (A) (step 2C), and returns control to the request from the control program editing screen (X) (step 3C). In this case, the file exclusion unit 140 records the key information (A) in the management table.

  Further, when the backup process is completed, the file backup unit 120 requests the file exclusion unit 140 to cancel the exclusion for the control program corresponding to the key information (A). In this case, the file exclusion unit 140 deletes the requested key information (A) from the management table.

  While the key information (A) is recorded in the management table of the file exclusion unit 140, the system programmer operates the keyboard 14 and the mouse 12 on the other control program editing screen (Y), and the same key information (A When the file exclusion unit 140 is requested to exclude the key information (A) from the control program in order to change the control program (step 4C), the file exclusion unit 140 receives the request from the control program editing screen (Y). A response that cannot be excluded from the request is output to the control program editing unit 110 (step 5C).

  Further, in order to display a control program for the same key information (A) by operating the keyboard 14 and the mouse 12 on the backup control program editing screen (Z), the key information (A ) Is requested (step 6C), the file exclusion unit 140 outputs to the control program editing unit 110 a response that is not exclusive to the request from the control program editing screen (Z) ( Step 7C).

  As described above, in the program creation device according to the present embodiment, the backup source control program stored in the first database 150 and the first control program stored in the first database 150 are prohibited by prohibiting the change or display of the backup source control program during the backup process. 2 Identicality with the backup destination control program stored in the database 160 can be maintained. In addition, it is possible to prohibit unauthorized display of the progress of the backup destination control program stored in the second database 160.

  That is, according to the program creation device according to the present embodiment, the program creation device and the program that can obtain the same effect as the program creation device according to the first embodiment described above and further reduce the work load of the system programmer. A driving method of the creation apparatus can be provided.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

  DESCRIPTION OF SYMBOLS 12 ... Mouse, 14 ... Keyboard, 16 ... Display apparatus, 100 ... Computer, 110 ... Control program edit part, 112 ... Program compiler, 114 ... Program load client part (communication part), 120 ... File backup part, 130 ... File comparison 140, file exclusion unit, 150, first database, 160, second database, 200, controller, 300, network.

Claims (6)

A program creation device for writing an object file of a control program to a controller via a network,
A control program editing unit comprising: a compiler that compiles a source file of the control program and converts it into an object file; and communication means that sends the object file to the controller;
A first database that stores the source file and the object file, and manages the source file and the object file by key information set for each control program;
A second database for storing the object file of the control program written in the controller and the source file, and managing the source file and the object file by key information set for each control program;
The file backup unit for recording the object file and the source file of the control program in the second database;
A display device for presenting an operation confirmation screen of the object file written in the controller to the user;
An input device that is operated by a user and outputs an operation signal to the control program editing unit;
With
The control program editing unit writes the object file to the controller and presents the operation confirmation screen to the display device, and the writing of the object file and the presentation of the operation confirmation screen are performed asynchronously with key information. A control program creation device configured to request the file backup unit to record the corresponding object file and source file in the second database. The first database and the second database are configured to manage control program information including the key information, program code, and program data in a hierarchical structure, and the program code and the program data are: Including subkey information set for each instruction word of the control program,
Means for specifying key information of the control program and subkey information of the changed instruction word when a user changes a part of the instruction word of the control program by operating the input device; and the second database The control program creation device according to claim 1, further comprising means for partially changing a command word of a control program corresponding to the specified key information and subkey information. A display switching means for requesting the display device to switch between a display of the control program being modified by the user and a display of the control program before the modification stored in the second database;
The display switching means includes means for specifying a control program before modification corresponding to the key information of the control program being modified, and means for reading out the specified control program before modification from the second database. Item 2. A control program creation device according to Item 1. The first database and the second database are configured to manage control program information including the key information, a program code, and program data in a hierarchical structure,
Means for reading out the control program information, the program code, and data during modification of the program data, control program information, the program code, and data before modification of the program data; and data under modification And a file comparison unit comprising: means for comparing the data before remodeling, data being remodeled or data before remodeling, and means for comparing with the object file written in the controller The control program creation device according to claim 1. A file exclusion unit including a management table for managing the key information when the control program information, the program code, and the program data are recorded in the second database;
The file exclusion unit is configured to output a response indicating that the file cannot be changed to the control program editing unit when there is a request to change the control program corresponding to the key information included in the management table. The control program creation device described. A driving method of a program creation device comprising a first database and a second database for setting and managing key information for each control program and configured to write an object file of the control program to a controller via a network. And
Reading the object file from the first database;
A writing step of writing the object file to the controller;
An operation confirmation step of displaying an operation confirmation screen of the control program on a display device;
A backup step of identifying the object file by the key information and a source file corresponding to the object file, reading the object file and the source file from the first database, and recording them in the second database; Prepared,
A method for driving a program creation device, wherein the writing step, the operation checking step, and the backup step are performed asynchronously.

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