JP2001075791A - Editor device and recording medium recording editor program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently prepare a display contents program (e.g. a user screen) to be displayed on a programmable display device without generating malfunction on the basis of the information of a control procedure program (e.g. a ladder program) for driving a controller such as a PLC. SOLUTION: A ladder analysis means 32c previously allows a ladder instruction for constituting a ladder program to correspond to parts for constituting a user screen, collectively extracts parts corresponding to a ladder instruction included in a ladder program prepared by a ladder editor 32a and registers the extracted parts in a parts file 33c in each screen of the user screen to prepare a parts data base. In the case of preparing a user screen by a plotting editor 32b, the parts registered in the parts data base are used. Since the parts data base is collectively prepared, the efficiency of processing can be improved. In addition, all parts corresponding to ladder instructions are included in the parts data base.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system having a function of displaying the state of a controlled device and a function of controlling the operation of the controlled device. The present invention relates to an editor device for programming a control procedure and a recording medium on which an editor program is recorded.

[0002]

2. Description of the Related Art An industrial control device called a programmable logic controller (hereinafter, referred to as a PLC) or the like includes a hardware portion mainly including a CPU and a memory for realizing various controls including a sequence control. And a software part for controlling. The software portion includes designing a sequence control flow for operating the PLC according to the control system originally designed, converting the control flow into a command, writing the command to a memory, and the like. Generally, this series of operations is called programming.

[0003] In such programming, a proprietary language is used so that a program can be easily created without having specialized knowledge of a computer, and various programming languages which are easy for a user to use have been developed one after another. It became so. Currently, IEC (International Elect
The Rotechnical Commission) has established a standard programming language (IEC 61131-3). They are SFC (Sequential Function Chart), LD (Ladde
r Diagram), IL (Instruction List), FBD (Functio
n Block Diagram) and ST (Structured Text).

[0004] As described above, an environment is being prepared so that programs can be developed using various programming languages. For example, a ladder diagram (LD) has been widely used in the past because a ladder circuit can be designed relatively easily using a relay symbol, and is a programming language most often used at present.
As a programming tool used in a programming operation using such a programming language, a programming software such as a ladder editor has been widely used. Since this software can create a ladder diagram or the like in a form including symbols in a computer device such as a personal computer, it is easy to create and edit a program.

On the other hand, a programmable display as an HMI (Human Machin Interface) device has a dot display screen,
The operation display device includes an operation input switch, an interface with a host controller (PLC), a program memory for control such as operation input on a screen, and the like. Generally, since a programmable display performs a graphic display, it can be provided with functions such as an operation panel, a switch, and an indicator light, and various kinds of management such as an operation status of a control target device (device) and a work instruction. It has a function as a monitor and a terminal for inputting setting values for the devices.

[0006] In recent years, a P / L is mounted by mounting an input / output unit or the like for connecting a device to be controlled.
Programmable displays with C control functions have also appeared.

A control screen (display content program) displayed on such a programmable display can be created by a user using screen creation software (drawing editor). When creating a screen, the user configures a desired control screen using parts (marks) such as switches, lamps, numeric keys, a meter display, a graph display, and drawing functions provided by drawing software on a personal computer or the like. I do.

[0008] SC, which is software for monitoring and controlling,
ADA (Supervisory Control And Data Acquisition)
Has become popular as software for providing an HMI environment. SCADA is high-performance graphic monitor software that displays the operation of machines and the operation panel of the control panel. Similar to the above-mentioned drawing editor, SCADA is used to create control screens using drawing functions for basic figures and parts prepared in advance. It is configured to be able to.

[0009] The created control screen is transferred to and stored in the programmable display as screen data. PLC
During the operation of, the programmable display displays each component or graphic on the control screen according to the operation state of the control target device based on data exchanged with the PLC.

[0010] By the way, creation of a control procedure program using a ladder editor or the like (programming) and creation of a display content program using a drawing editor (screen creation).
Is generally performed independently. For example, when creating a display content program based on the created control procedure program, create design data in which the names and addresses entered for each device at the time of creating the control procedure program are written down in a table format. Then, a display content program including definition of an I / O address is created with reference to the design data. Similarly, when a control procedure program is created based on the created display content program, work is performed based on design materials prepared in advance.

[0011]

In the above-described method for creating a program, although both programs are created in association with a common device, they are created independently of each other. An input operation for assigning is required separately. Further, in the above-described program creation method, design materials need to be created, and the program creation is entirely performed by a user's input operation.
Therefore, the above-described program creation method has a problem that the work efficiency is low and the program creation takes a lot of time. Further, since the program creation is performed by a user's input operation, there is a possibility that an erroneous input may occur in the input operation with reference to the design material when creating the other program after creating one program. Further, when such an erroneous input occurs, there is a problem that the debugging work of the program is further increased.

As an invention made to solve such a disadvantage, Japanese Patent Application Laid-Open No. H11-175326 discloses an invention.
Ladder symbol (ladder instruction) between the ladder editor that creates the ladder program and the screen editor that creates the screen
There is disclosed an editor device for associating a component (mark) arranged on a screen with a component. This editor device is configured to display a part corresponding to the ladder symbol in the drawing window by dragging and dropping the ladder symbol displayed on the ladder window into the drawing window, for example.

Thus, if the ladder program is created in advance, the screen can be easily created only by the user performing an operation such as drag and drop based on the ladder program.

However, in such a method, it is necessary to copy data (device name, address, etc.) common to the ladder program and the user screen to the drawing editor every time the ladder symbol is dragged and dropped one by one to the drawing window. Therefore, there is a problem that the processing efficiency is low. Further, in this method, since the user repeatedly performs the operation of dragging and dropping the ladder symbol from the ladder window to the drawing window, an erroneous operation that some ladder symbols are not dragged and dropped may occur.

The present invention has been made in view of the above circumstances, and has recorded therein an editor apparatus and an editor program which can efficiently create a display content program based on information of a control procedure program without erroneous operation. It is intended to provide a recording medium.

[0016]

SUMMARY OF THE INVENTION An editor apparatus according to the present invention is directed to a display / control system having a display function unit for displaying a state of a device to be controlled and a control function unit for controlling the operation of the device to be controlled. The display content program for determining the content of the display executed by the display function unit is a first program.
First editor means created in response to an input operation on an editor screen, and a control procedure program for determining a control procedure executed by the control function unit are created in response to an input operation on a second editor screen. And a second editor means for compensating for the above-mentioned problem by associating instructions for configuring the control procedure program with image blocks for configuring the display content program in advance. Extracting means for extracting an image block corresponding to an instruction included in the control procedure program created by the second editor means for a plurality of instructions.

In the above arrangement, since the image block corresponding to the instruction included in the created control procedure program is extracted by the extracting means, a display content program corresponding to the instruction is created by using the image block. Is done. Further, since image blocks are extracted for a plurality of instructions, processing efficiency can be improved. Furthermore, since the display content program is created using the extracted image blocks, the inconvenience that the image block corresponding to the command is not reflected in the display content program can be solved.

In the above-described editor device, it is preferable that the extracting means registers the extracted image blocks in units of one screen of the display content program. By using the registered image blocks in units of one screen, a display content program can be created without being conscious of which part of the control procedure program corresponds to the display content program for one screen.

Further, in this editor apparatus, it is preferable that the extracting means extracts the image blocks collectively for the single control procedure program. By extracting the image blocks collectively in this way, the time required for the extraction processing can be reduced.

Alternatively, in the above-mentioned editor device, it is preferable that the extracting means extracts attribute information on the command together with an image block. This can save the trouble of re-inputting only the attribute information.

[0021] A recording medium on which the editor program of the present invention is recorded is directed to a display / control system having a display function unit for displaying a state of a controlled device and a control function unit for controlling the operation of the controlled device. A first editor process for creating a display content program for determining display content executed by the display function unit in response to an input operation on a first editor screen, and a control procedure executed by the control function unit And a second editor process for creating a control procedure program for defining a control procedure program in response to an input operation on a second editor screen. In order to solve the above problem, the editor program configures the display content program with instructions for configuring the control procedure program. With associating in advance in the image block because, being characterized in that it comprises an extraction process for extracting an image block corresponding to the instructions contained in the control procedure program created by the second editor processing for a plurality of instructions.

When this recording medium is used, an image block is extracted for a plurality of instructions by an extraction process, similar to the editor apparatus of the present invention, so that the processing efficiency is improved and the image blocks corresponding to the instructions are displayed. The inconvenience of not being reflected in the program is eliminated.

Another recording medium in which the editor program of the present invention is recorded has a display / control system having a display function unit for displaying a state of a device to be controlled and a control function unit for controlling the operation of the device to be controlled. A first editor process for creating a display content program for determining the content of a display executed by the display function unit in response to an input operation on the first editor screen, or a control executed by the control function unit. A second procedure for creating a control procedure program for defining a procedure in accordance with an input operation on the second editor screen
A computer-readable recording medium in which an editor program including any one of the editor processes is recorded. In order to solve the above-described problem, the editor program includes an instruction for configuring the control procedure program. It includes an extraction process of associating in advance with an image block for forming a display content program and extracting an image block corresponding to an instruction included in the control procedure program created by the second editor process for a plurality of instructions. It is characterized by:

When this recording medium is used, similar to the above-mentioned recording medium, an image block is extracted for a plurality of instructions by the extraction processing, so that the processing efficiency is improved and the image blocks corresponding to the instructions are displayed in the display content program. The inconvenience of not being reflected in the data is resolved. Further, according to this recording medium, it is possible to provide two types of editor programs including either the first or second editor process and the program generation process, that is, the first or second editor program.

In the above two recording media, the extraction processing
It is preferable that the extracted image blocks are registered for each screen of the display content program. By performing such processing, a display content program can be created without being conscious of which part of the control procedure program the display content program for one screen corresponds to, similarly to the above-described editor device.

In addition, in such a recording medium, it is preferable that the extraction process collectively extracts image blocks for the single control procedure program. By performing such processing, it is possible to reduce the time required for the extraction processing as in the case of the above-described editor device.

Alternatively, in the above two recording media, it is preferable that the extraction process extracts attribute information on the command together with an image block. With such a configuration, it is possible to save the trouble of re-inputting only the attribute information as in the above-described editor device.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

Various configurations are conceivable for the display / control system according to the present embodiment. Here, the first to third configurations will be described.

First, the first display / control system shown in FIG. 1 includes a programmable display 1 and a PLC 2.

The programmable display 1 as a display function unit includes a CPU 11, a memory unit 12, a VRAM 13, a display 14, a graphic controller 15, a touch panel 16, a touch panel controller 17, a maintenance port 18, and a communication controller 19.

The memory unit 12 includes a DRAM 12a, an FEP
ROM (Flash Erasable and Programmable ROM) 12b
Etc. memory. The DRAM 12a is mainly used for operations at the time of arithmetic processing such as display control.
Used for temporary storage of data exchanged with C2. The FEPROM 12b is a rewritable read-only flash memory and plays a role of a hard disk drive in a general personal computer. The flash memory has no moving parts and is resistant to impact, so that it operates stably even in a poor surrounding environment.

Further, the above-mentioned FEPROM 12b is constructed as shown in FIG.
As shown in (1), the display control system program has an area for storing a display control system program, a communication protocol, and a user screen. The display control system program is a program for realizing a basic function for performing image display control. The communication protocol is a protocol used in a communication process with the PLC 2, and a model (manufacturer) of the PLC 2
It is uniquely determined according to. The user screen is created by a drawing editor 32b to be described later, and
Downloaded to M12b. The user screen includes a base screen to be displayed on the display 14, data of parts as image blocks, and a processing instruction word W (see FIG. 3) given to each part, which will be described later.
A display content program is configured.

The above-mentioned components are prepared in advance as imaged basic components such as switches, lamps and various display devices. Also, as a component, a moving image function unit in which a desired moving image function is set in a rectangular area set at a desired position in order to express a dynamic change of a switch, a numerical display, or the like at an arbitrary position on the screen. Is also included.

As shown in FIG. 3, the processing instruction word W included in the screen data is created for each event to be executed on the base screen. This processing instruction word W is basically
File number F of base screen on which display control operation is to be executed
, An event name T for specifying an operation content to be executed on the base screen, and reference information I including one or a plurality of data referred to for each execution event.

The CPU 11 is connected to the aforementioned FEPROM 12b
The operation of each unit of the programmable display 1 is controlled in accordance with the display control system program stored in.
The CPU 11 also includes a maintenance port 18 described later.
And has a function of controlling communication with a computer device 3 to be described later through the FAX. When receiving screen data from the drawing editor 32b, the screen data is stored in the FEPROM 12b,
When a ladder program (control procedure program) is received from the ladder editor 32a, it is transferred to the PLC 2.

The VRAM 13 is a memory for temporarily holding a screen image displayed on the display 14, and stores the image of the screen data from the FEPROM 12b as dot data in the order displayed in the horizontal direction.

The display 14 is composed of a flat display element such as a liquid crystal panel or an EL panel.
The graphic controller 15 is driver software for drawing an image of a screen developed in the VRAM 13 on the display 14. The touch panel 16 is provided for performing input on the display screen of the display 14, and is preferably an analog resistive touch panel or the like. The touch panel controller 17 converts the output voltage of the touch panel 16 into input position information and outputs the input position information to the CPU 11.

The maintenance port 18 is a communication port for performing communication with the computer device 3 described later. On the other hand, the communication controller 19 is an interface that controls the transfer of data related to control and monitoring of the input / output devices 4 and the like and the capture of output data of the PLC 2 with the PLC 2 via a communication cable (for example, RS-232C). .

The PLC 2 serving as a control function unit controls the operation of the input / output devices 4... By a built-in CPU unit according to a control function program described later, in accordance with a procedure defined by a ladder program created by a ladder editor 32a. I do.

The memory in the PLC 2 is set so that a word device and a bit device can specify a storage location by specifying an address. In the word device, input / output data is set for word data such as a numerical value, and for the bit device, bit data such as an on / off state is set. With such a setting, it is possible to control the input / output devices 4... Simply by accessing an arbitrary word device or bit device in the PLC 2 or to individually extract information on the operation state.

The programmable display 1 includes, among the status information indicated by the bit device or the word device,
While the necessary information is read into the memory unit 12 in a timely manner, the processing instruction word W is repeatedly read and the operation of the content specified by the event name T of each processing instruction word W is executed while referring to the state information on the PLC 2 side. I do. Thus, a display operation that changes according to a change in the state of the bit device or the word device is performed.

The display operation of the programmable display 1 is performed according to the procedure of the flowchart shown in FIG.

First, either the online mode in which the input / output devices 4 can be controlled or the offline mode in which only the programmable display 1 is operated is selected (S1). When the offline mode is selected (N
O) In the programmable display 1, various processes such as a setting process and a diagnostic process are performed (S6), and the process returns to S1.

When the online mode is selected in S1 (YES), the status information on the PLC 2 side referred to by the processing instruction word W set in the memory unit 12 of the programmable display 1 as a start-up process is programmable. It is taken out to the display 1 side. Specifically, among the processing instruction words W stored in the memory unit 12, from the information included in the processing instruction word W related to the currently displayed base screen, the word device and bit set in the PLC 2 are determined. The device address is extracted. Then, by directly accessing the memory of the PLC 2 based on the address, the addressed state information is stored in the memory unit 1.
2 and displayed on the operation screen. In the online mode, it is determined whether or not an input operation has been performed on the operation panel screen displayed on the programmable display 1 (S).
2). Here, if there is an input operation, a predetermined calculation process is performed based on the input data (S3), and further a data communication process is performed (S4).

Next, display processing of each event is executed (S
5). At this time, a display operation is performed based on the state information extracted by the communication processing from the processing instruction words W stored in the memory unit 12.

Next, the computer device 3 will be described.

As shown in FIG.
Is constituted by a general-purpose computer such as a personal computer. This computer device 3 is C
PU 31, editor unit 32, data file 33, memory unit 34, display 35, input device 36, external storage device 37, and interface unit (I / F in the figure) 3
8 is provided.

The CPU 31 is an operating system (OS) installed in the computer device 3.
The control and calculation processing of each unit when operating the application software including the editor unit 32 are performed.

The memory section 34 includes a memory such as a RAM and a ROM, and plays a role of storing fixed data, temporarily storing data, and providing a work area when the CPU 31 performs arithmetic processing.

The editor unit 32 is a ladder editor 32
a, a drawing editor 32b and a ladder analyzer 32c.

The ladder editor 32a as the second editor means is a programming software for creating a ladder program for defining the control procedure of the PLC 2 so that the input / output devices 4 operate in accordance with a desired sequence. A ladder diagram can be created by arranging ladder symbols (ladder instructions) corresponding to the operation of the input / output device 4 on the display screen 35a (see, for example, FIG. 16A). This ladder editor 32a
For example, the above-mentioned programming language conforming to the international standard IEC is used.

Note that the ladder editor 32a may be configured to provide a page mode for creating a ladder program in units of one user screen. When creating a ladder program in this page mode, the ladder program for one page is saved in a separate file each time it is created. Therefore, the ladder editor 32a
Provides a user interface (eg, a dialog box) for saving a ladder program for each page.

Further, the ladder editor 32a has a PLC
The input and output numbers assigned to the input terminals and output terminals of the input / output terminals 2 and the names (device names) of the input / output devices 4 connected to the respective input / output terminals are input / output via variables. This is performed as number assignment (I / O assignment). The result of this allocation is stored in a ladder file 33a described later.

At the time of allocation, the memory unit 34 stores a device name corresponding to each address using the input number and the output number as addresses. Conventionally, such allocation differs depending on the manufacturer of the PLC, and is set by an absolute address. Therefore, it is necessary to prepare a memory table corresponding to the manufacturer. However, in the ladder editor 32a conforming to the IEC, the user can determine the input / output based on the above-mentioned variables (free variables), so that the memory table as described above is unnecessary. Also, the assignment once determined can be changed later.

The ladder program created by the ladder editor 32a is transferred (or directly) to the PLC 2 via the programmable display 1 and downloaded to a memory in the PLC 2.

Drawing editor 3 as first editor means
2b, the display 14 is provided so that the programmable display 1 has a function as a terminal for inputting set values for various monitors and devices for management such as operation status of the input / output devices 4 and work instructions. Screen creation software for creating screens to be displayed.

In general, the drawing editor 32b includes a switch, a lamp, a numeric keypad, various displays (for example, a numerical display, a meter display, and a graph display) so that a user-specific screen (user screen) can be created. It has parts, drawing function, text input function, etc. As the components, not only a single component having a single function but also a composite component having a plurality of functions, such as a composite switch, a counter, and a timer, are prepared. Such a composite is registered in a library format so that it can be arranged at a desired position on the base screen by an operation such as drag and drop like a single component.

The drawing editor 32b assigns the input / output numbers (addresses) of the components arranged on the created screen to the input / output devices 4 via the variables.

The user screen created by the drawing editor 32b is stored in a screen file 33b described later. This user screen is transferred to the programmable display 1 via the interface unit 38 as necessary,
It is downloaded to the FEPROM 12b.

The ladder analysis unit 32c as an extraction means
Ladder instructions included in the ladder program created by the user's operation using the ladder editor 32a are individually analyzed, and the parts of the drawing editor 32b associated with each ladder instruction are collectively extracted for one ladder program. And a component file 33 described later for each user screen.
Register in c. The ladder command generally has a corresponding component, and the ladder analysis unit 32c has such a correspondence as data. Specifically, as shown in FIG. 5, an LD instruction and a A
For ND command, switch, sensor (ON / OFF
And the ladder instruction representing the b-contact, the LDN instruction and the ANDN instruction are also associated with components such as switches and sensors. In addition, a component such as a lamp and an LED is associated with an OUT command that is a ladder command representing a coil output.

[0062] Analysis of the ladder instruction by ladder analyzing unit 32c is performed by the keyword detection unit 32c ₁ and the component extracting unit 32c ₂ shown in Fig. 15 provided in the ladder analyzing section 32c. Keyword detection unit 32c ₁ is a keyword associated with the ladder commands, from the input bus side to the output bus side in the ladder diagram, and detecting the sequence ladder program step by step. On the other hand, the component extraction unit 32c ₂
Extracts a component corresponding to the detected keyword from the basic component database 32 b _2. Further, in order to associate the extracted component with the base screen, the component extraction unit 32c ₂ uses the above-described processing instruction word W including information of an event executed for each base screen as a tag, and Write the tag. The above basic parts database 32b ₂
Is a database that stores image data of basic components such as switches, lamps, counters, and the like, and is provided in the drawing editor 32b.

As a method of setting a keyword, for example, as shown in FIG. 6A, a ladder instruction itself is used as a keyword, or as shown in FIG. 6B, a keyword is assigned to a variable assigned to the ladder instruction. There is a way to attach. In the method shown in FIG. 6A, the LD instruction, the AND instruction, and the OUT instruction each include a variable “START”,
In addition to being assigned to “SW1” and “LAMP1”, each instruction is set as a keyword. According to this method, there is no need to separately set a keyword.
On the other hand, in the method of FIG.
A keyword "SW" meaning a switch is attached to "T" and "SW1", and "SW: START"
And “SW: SW1”, and a keyword “LAMP” indicating a lamp is attached to “LAMP1”, and “L:
AMP: LAMP1 ". According to this method, the keyword can have a function attribute as a component.

The ladder analysis unit 32c also extracts link information, such as bit data of a switch, for associating a ladder command with a component, and additional information, such as a comment given by the user to each ladder command, together with the component. And register it in the component file 33c. Further, the ladder analysis unit 32c is provided with an address assigned to a device corresponding to the ladder instruction and a processing function of the PLC 2 corresponding to the ladder instruction (counter, timer, comparison, various operations, etc.).
Is registered in the component file 33c as variable information together with variables.

The above processing functions are available not only for the PLC 2,
It also includes a programmable display 1 in a second display / control system, which will be described later, which functions as a PLC, and a computer device 3 in a third display / control system.
Further, the above-mentioned supplementary information may be set also as a variable.

The ladder analysis section 32c may be included as one function of one of the ladder editor 32a and the drawing editor 32b or one function common to both editors 32a and 32b.

The computer device 3 functions as an editor device for creating and editing a ladder program and a user screen by providing the editor unit 32.

The editor section 32 is software that can be provided in the form of a program medium as package software or custom software, and is recorded, for example, on the recording medium 5 separable from the computer device 3. Then, the editor unit 32 stores the recording medium 5
When installed in the computer device 3, the editor function can be exhibited.

The editor section 32 may be recorded on a single recording medium 5, but the ladder editor 32a and the drawing editor 32b may be recorded on separate recording media.

The above-mentioned program media includes tape systems such as magnetic tapes and cassette tapes, magnetic disk systems such as floppy disks and hard disks, CD-ROMs,
Optical disks such as MO, MD, and DVD, card systems such as IC cards (including memory cards), and optical cards are suitable. In addition, the above program media include mask ROM, EPROM, EEPROM, flash RO
It may be a medium that fixedly carries a program including a semiconductor memory such as M.

Further, since the computer device 3 can be connected to a communication network including the Internet, the computer device 3 may be a medium that carries the program fluidly so as to download the program from the communication network. However, when the program is downloaded from the communication network as described above, the download program is stored in the computer device 3 in advance, or
Alternatively, it may be installed from another recording medium.

The data file 33 is the ladder file 3
3a, a drawing file 33b and a parts file 33c.

In the data file 33, for example,
As shown in FIG. 7, the ladder program is stored in the ladder file 33a, and the user screen is stored in the screen file 33b. Ladder file 33a is composed of a command file section 33a ₁ and the variable data file section 33a _2. Command file section 33a ₁ stores ladder instructions and operands corresponding to the ladder symbol is entered, the variable data file section 33a ₂ so as to correspond to the command file section 33a _1, the ladder instructions above, the device Stores variables and addresses.

[0074] screen file 33b, as shown in FIG. 8, and a graphic data file section 33b ₁ and the variable data file section 33b _2. Graphic data file section 33b ₁ is, parts, various shapes (circle, line, rectangle), and stores the data for such as text (string). Variable data file section 33b ₂ so as to correspond to the graphic data file section 33b _1, the input part, and stores the variables and address of the device.

As shown in FIG. 9A, the component file 33c forms a component database by storing the data of the components extracted by the ladder analysis unit 32c in a user screen (one screen unit). I have. The component file 33c stores the above-described link information, supplementary information, and variable information as related information (attribute information) for each data of each component.

The display 35 is constituted by a CRT, an LCD or the like. In the computer device 3 which is a panel computer, the display 35 is constituted by a flat display element such as a liquid crystal panel or an EL panel. Input device 3
Reference numeral 6 denotes a device for performing input operations such as a keyboard and a mouse, and in particular, a GUI (Graphical User Interface).
A device such as a mouse is suitable for input work in the editor unit 32 operating on the environment. The external storage device 37 is a magnetic disk drive such as a hard disk device, a CD-R
It is a device such as an optical disk drive such as an OM drive, and includes at least a device capable of reading information such as a program recorded on the recording medium 5. The interface unit 38 is an input / output unit that performs data communication with the programmable display 1. The ladder program created by the ladder editor 32a and the user screen created by the drawing editor 32b are transferred to the programmable display 1 via the interface unit 38.

Next, the second display / control system will be described.

The second display / control system shown in FIG. 10 includes a programmable display 1 and a PLC 2 similarly to the above-mentioned first display / control system. It has a PLC function, and is configured to directly control the input / output devices 4. For this reason, the programmable display 1 includes an SRAM 12c in the memory unit 12 and an input / output unit (I / O in the figure) in addition to the communication controller 19 described above.
O unit) 20 and I / O control interface 2
1 is provided.

The SRAM 12c has a ladder editor 32a.
It has an area for storing the variables created by. Further, as shown in FIG. 11, the FEPROM 12b includes a display control system program, a communication protocol, and an area for storing a user screen, and further includes a control function program and a ladder program as shown in FIG. It has an area to store. The control function program is a program for realizing basic functions of sequence control.

The input / output unit 20 has a large number of input / output terminals, input / output circuits and the like so that the input / output devices 4 can be connected. I / O control interface 21
Is an interface circuit that mediates transmission and reception of signals between the CPU 11 and the input / output unit 20, and includes an input / output memory, a D / A converter, an A / D converter, and the like.

Next, the third display / control system will be described.

The third display / control system shown in FIG.
The configuration is centered on a so-called open controller (software PLC) that operates with software.

The open controller is constituted by the computer device 3 and connects the input / output devices 4... Instead of the interface unit 38 of the computer device 3 in the first display / control system described above. (I / O unit in the figure) 39 and I
An I / O control interface 40 is provided.

The input / output unit 39 has a large number of input / output terminals and input / output circuits so that the input / output devices 4 can be connected. Such an input / output unit 39
The I / O board is mounted in the computer device 3, but may be independently provided outside the computer device 3 as a remote I / O.

The I / O control interface 40 is connected to the CP
An interface circuit that mediates the transmission and reception of signals between the U31 and the input / output unit 39;
/ A converter, A / D converter, and the like. This I /
The O control interface 40 converts digital signals or analog signals input / output to / from the input / output
It is designed to interact with U31.

The computer device 3 includes an interface unit (I / F unit in the figure) 41 so as to function as an open controller. The interface unit 41 is an input / output unit corresponding to the open network 8 using a general-purpose communication protocol such as Ethernet (registered trademark), and is connected to the open network 8. Thereby, the computer device 3 is connected to another computer device, a programmable display, a PLC, and the like via the open network 8.

As shown in FIG. 11, the memory section 34 has areas for storing a display control system program, a communication protocol, screen data, a control function program, and a ladder program, respectively, as in the above-described SRAM 12c. are doing.

The computer device 3 configured as described above
When the target system in which the input / output devices 4 are arranged is operated (on-line state), the created screen and the state of the site are displayed on the display 35 to function as a monitor for monitoring the operation status of the target system. And the input / output devices 4 in the target system are controlled. At this time, the computer device 3
Executes the ladder program created by the ladder editor 32a and stored in the data file 33 according to the control function program. On the other hand, the computer device 3 functions as an editor device for creating a ladder program or a user screen by activating the ladder editor 32a or the drawing editor 32b when the target system is not operating (off-line state).

In the first and second display / control systems, the ladder program and the user screen are temporarily stored in the data file 33, then downloaded to the PLC 2 and the programmable display 1, respectively, and stored in the memory. In the second display / control system, or after the ladder program and the user screen are once stored in the data file 33, the programmable display 1
And stored in the memory unit 12. Third
In the display / control system of, the ladder program and the user screen are stored in the data file 33.

Here, a processing procedure from creation of a ladder program to creation of a user screen in the first to third display / control systems will be described with reference to a flowchart of FIG.

When the ladder program is created, the ladder editor 32a is activated in the computer device 3 and the display unit 35a of the display 35 (FIG. 16).
The (a) refer), the editor screen for creating a ladder program (second editor screen) for displaying a window (hereinafter, referred to as ladder window) 32a ₁ is opened. Also, when creating the user screen is the screen editor 32b is started, a window for displaying an editor screen for creating user screen (first editor screen) (hereinafter, referred to as drawing window) 32b ₁ is opened I have.

[0092] First, in the ladder window 32a ₁ above,
A ladder program is created by a user operation (S11). This ladder program is registered in the ladder file 33a after being created. Next, the ladder analysis unit 3
By referring to the ladder file 33a by 2c,
A ladder instruction in the ladder program is sequentially analyzed to create a parts database corresponding to the ladder instruction (S1).
2). Further, a user screen is created by the drawing editor 32b using the component database (S13).
The created user screen is registered in the screen file 33b (S14), and the process ends.

Next, a specific procedure of the above component database creation processing will be described with reference to the flowchart of FIG. 14 and the block diagram of FIG.

First, a file of a ladder program A for which a component database is to be created from a plurality of ladder programs stored in the ladder file 33c is opened (S2).
1). This file to determine whether it is possible to keyword detection by the keyword detection unit 32c ₁ (S22), if it is possible to detect the keyword (S23). If the keyword cannot be detected because the keyword has not been set in the ladder program, the process proceeds to S
Move to 28.

Next, the component extracting section 32c ₂ accesses the basic component database 32b ₂ (S24).
The part corresponding to the ladder instruction is extracted from the basic component database 32 b ₂ based on the detected keywords, writes the tag extracted part (S25).
The parts extracted in this way are stored in the ladder file 33c.
And creates a component database (see FIG. 9A) distinguished for each screen by a tag (S26).

Then, related information is created and registered in the component file 33c (S27). Further, it is determined whether or not the processing of S21 to S27 is performed for the next file (S28). S above for the next file
If the processing from 21 to S27 is not performed, it means that the creation of the component database has been completed.

[0097] When creating a user screen using the component database, while editor body 32b ₃ of the screen editor 32b refers to the component database, continue to place components corresponding to ladder instructions based screen. The created user screen is stored in the screen file 33b.

Here, a specific example of the above processing will be described.

[0099] First, as shown in FIG. 16 (a), the ladder program is created on the ladder window 32a _1. This ladder program includes a step 1 provided with a switch (SW1) and a lamp (LAMP1), a step 2 provided with a switch (SW2) and a counter (COUNTER), a push button switch (PB1) and an LED (LED1). Step 3 provided, and Step 4 provided with a push button switch (PB2) and an LED (LED2).

In this state, as a result of the ladder analysis section 32c performing the above-described processing of S21 to S28, a parts database for one ladder program including steps 1 to 4 is created. Next, the drawing editor 32b
When the user screen is created by the user, the above component database is referred to. Specifically, as shown in FIG. 16 (b), to display a pull-down menu M to drawing window 32 b _1. For example, when “SW” representing a switch is selected from the pull-down menu M, FIG.
As shown in (c), a dialog box D including switch components P ₁ and P ₂ respectively corresponding to “SW1” and “SW2” is displayed.

[0102] When the component P ₁ of SW1 from this dialog box D is selected, as shown in FIG. 16 (d), the component P ₁ is placed on the drawing window 32 b _1, SW2
When the component P ₂ is selected, the component P ₂ are arranged similarly. When such an operation is also performed for “LAMP” and “COUNTER” selected from the pull-down menu M, as shown in FIG. 16E, the components P ₃ and P corresponding to “LAMP” and “COUNTER” respectively.
₄ is disposed on the drawing window 32 b _1. As a result, for the ladder program of steps 1 and 2, 1
The arrangement of parts for the screen is completed. Although not shown, components for one screen are similarly arranged for the ladder programs in steps 3 and 4.

Further, as shown in FIG.
₁~ P_FourTogether with the ladder symbol
“SW1”, “SW2”, “LAMP” and “COU”
NTER ”is a parts database as the additional information described above.
And the part P₁~ P _FourWhen placing
On the user screen₁~ P_FourTogether with a nameplate
Will be displayed as needed. This collateral information is
The number may also be used. With this, Ladder Editor 3
2a, the number of pieces of information to be input can be reduced.

As described above, the first to third display / control systems according to the present embodiment are provided with the ladder analyzing section 32c, so that the component database corresponding to one ladder program is collectively provided. Created in advance. Thus, the user creates a user screen by placing the part in drawing windows 32 b ₁ based on the component database. As described above, since the user screen is created using the component database created by the ladder analysis unit 32c collectively, processing can be performed efficiently. In addition, since a component corresponding to the ladder command is used for creating the user screen, there is no inconvenience that the component is not reflected in the creation of the user screen even though it is a component corresponding to the ladder command.

Also, the parts database is stored in the
Since it is created for each screen, the user can operate the ladder program without being conscious of which part of the ladder program corresponds to one screen of the user screen. Therefore, the creation efficiency of the user screen can be improved.

Further, the ladder analysis section 32c not only supplies ladder command information to the drawing editor 32b by creating a parts database, but also extracts related information from the ladder program and supplies it to the drawing editor 32b. As a result, only the relevant information is stored in the drawing editor 32b
Can save the trouble of re-inputting.

Next, a procedure for creating a parts database when a ladder program is created in the above-described page mode will be described with reference to the block diagram of FIG. 15 and the flowchart of FIG.

First, a file is opened for each page corresponding to one screen of the user screen from one ladder program for creating a component database in a plurality of ladder programs stored in the ladder file 33c (S3).
1). At this time, instead of the ladder program A in FIG. 15, for example, a file of a partial ladder program (page program) created by being divided in units of one page as shown in FIG. 18A is opened. This file to determine whether it is possible to keyword detection by the keyword detection unit 32c ₁ (S32). Here, if it is possible, the keyword is detected (S33), and if not, the process proceeds to S38.

Next, the component extracting unit 32c ₂ accesses the basic component database 32b ₂ (S34).
The part corresponding to the ladder instructions, extracting from the basic component database 32 b ₂ based on the detected keyword (S35). The components thus extracted are registered in the ladder file 33c and stored in the component database (FIG. 9B).
(See S36).

Then, related information is created and registered in the component file 33c (S37). Further, it is determined whether or not the processing of S31 to S37 is performed for the next page (S38). S3 above for the next file
If the processing from 1 to S37 is not performed, it means that the creation of the component database has been completed.

The component database created based on the ladder program created in the page mode as described above is constructed as screen data independently for each screen as shown in FIG. 9B. When creating a user screen using this parts database, the drawing editor 32
while b editor body 32 b ₃ refers to the component database, it continues to place components corresponding to ladder instructions based screen. Then, the user screens (such as Screens 1 and 2 shown in FIGS. 18A and 18B) created for each page of the ladder program are stored in the screen file 33b.

When the ladder program is created in the page mode, the processing from the analysis of the ladder instruction by the ladder analyzing section 32c to the component arrangement by the drawing editor 32b may be automated. This process is specifically performed as follows.

First, the layout positions of the components for each page registered in the component database on the base screen are set in advance, and the ladder analysis process is performed with the ladder analysis unit 32c and the drawing editor 32b activated. Let it start. When the user inputs an automatic component placement instruction in the drawing editor 32b in a state where the component database is created as a result of the ladder analysis, the components of the component database are arranged at predetermined positions on the base screen. . Further, if necessary, by the operation of the editor body 32 b _3, to adjust the position of the component or arrangement of special components other than the basic component, drawing, desired of the user or performs an operation such as text input Complete the screen.

As described above, by automatically arranging the parts, the user may change the arrangement position of the parts as necessary as described above. therefore,
Work load on the user can be greatly reduced. When a component database is created from a ladder program created in the page mode, the ladder program is created corresponding to one user screen, and components are extracted for each screen. Therefore, the tag writing process (see S25 in FIG. 14) is not required as in the case of creating the component database from the ordinary ladder program at once.

The present invention is not limited to the ladder diagram,
Of course, the present invention is also applicable to programming in other languages including the five languages specified in IEC 61131-3.

[0115]

As described above, in the editor apparatus of the present invention, the command for forming the control procedure program is previously associated with the image block for forming the display content program, and the editor apparatus is prepared by the second editor means. The image processing apparatus includes an extraction unit that extracts an image block corresponding to an instruction included in the control procedure program for a plurality of instructions.

As a result, since image blocks are extracted for a plurality of instructions, the processing efficiency is improved, and the image blocks corresponding to the instructions are completely reflected in the display content program. Therefore, there is an effect that a display content program can be created efficiently and accurately.

In the above-described editor device, the extracting means registers the extracted image blocks in units of one screen of the display content program, thereby saving a part of the control procedure program corresponding to the display content program for one screen. A display content program can be created without being conscious. Therefore, there is an effect that the creation efficiency of the display content program can be further improved.

Further, in this editor device, since the extracting means extracts the image blocks collectively for the single control procedure program, the time required for the extracting process can be reduced. Therefore, there is an effect that the processing can be performed efficiently.

Alternatively, in the above-mentioned editor device, since the extracting means extracts attribute information on the command together with the image block, it is not necessary to re-input only the attribute information. The effect that reduction can be achieved is produced.

In the recording medium on which the editor program of the present invention is recorded, the editor program preliminarily associates an instruction for forming the control procedure program with an image block for forming the display content program,
The configuration includes an extraction process of extracting an image block corresponding to a command included in the control procedure program created by the editor process for a plurality of commands.

Thus, similarly to the editor device of the present invention, an image block is extracted for a plurality of instructions, so that the processing efficiency is improved and the image blocks corresponding to the instructions are completely reflected in the display content program.
Therefore, there is an effect that a display content program can be created efficiently and accurately.

In another recording medium on which the editor program of the present invention is recorded, the editor program executes a first editor processing or control procedure program for creating a display content program in response to an input operation on the first editor screen. 2
The configuration includes one of the second editor processes for creating in accordance with the input operation on the editor screen and the extraction process.

As a result, similarly to the above-described recording medium, an image block is extracted for a plurality of instructions, so that the processing efficiency is improved and the image blocks corresponding to the instructions are completely reflected in the display content program. Therefore, there is an effect that a display content program can be created efficiently and accurately. Further, according to this recording medium, since the editor program includes either the first or second editor processing and the program generation processing, the first editor processing and the second editor processing become independent editor programs. The present invention can be applied to such a form.

In the above two recording media, the extraction process registers the extracted image blocks in units of one screen of the display content program. A display content program can be created without being conscious of the part of the control procedure program to be executed. Therefore, there is an effect that the creation efficiency of the display content program can be further improved.

Further, in this recording medium, since the extraction process extracts image blocks collectively for a single control procedure program, the time required for the extraction process can be reduced as in the above-described editor device. Can be. Therefore, there is an effect that the processing can be performed efficiently.

Alternatively, in the above two recording media,
Since the extraction process extracts the attribute information of the command together with the image block, the labor of re-inputting only the attribute information is omitted as in the above-described editor device. As a result, the number of work steps can be reduced. It has the effect of being able to.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a first display / control system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a program stored in a FEPROM of a programmable display in the first display / control system.

FIG. 3 is an explanatory diagram showing a basic format of a processing instruction word included in a user screen displayed on the programmable display or the like.

FIG. 4 is a flowchart showing a processing procedure of a display operation of the programmable display device.

FIG. 5 is an explanatory diagram showing correspondence between ladder instructions and components, which the ladder analysis unit has as data.

FIGS. 6A and 6B are ladder circuit diagrams showing examples of association between a ladder instruction and a keyword.

FIG. 7 is an explanatory diagram showing a configuration of a ladder file provided in a computer device in each display / control system of the present invention.

FIG. 8 is an explanatory diagram showing a configuration of a screen file provided in a computer device in each display / control system of the present invention.

FIGS. 9A and 9B are explanatory diagrams showing a configuration of a component file provided in a computer device in each display / control system of the present invention.

FIG. 10 is a block diagram showing a configuration of a second display / control system according to one embodiment of the present invention.

FIG. 11 is an explanatory diagram showing a program stored in a FEPROM of a programmable display in the second and third display / control systems.

FIG. 12 is a block diagram showing a configuration of a third display / control system according to one embodiment of the present invention.

FIG. 13 is executed by each of the display / control systems described above;
9 is a flowchart illustrating a processing procedure from creation of a ladder program to creation of a user screen through creation of a component database.

FIG. 14 is a flowchart illustrating a procedure of creating a component database in the process of FIG. 13;

FIG. 15 is a block diagram showing the relationship between each part of an editor unit and each part of a data file in association with the processing of FIG. 13;

16A shows a ladder program created on a ladder window, and FIGS. 16B to 17E show a process of creating a user screen using the parts database obtained by the processing procedure of FIG. FIG.

FIG. 17 is a flowchart illustrating a procedure for creating a component database based on a ladder program created in a page mode.

18A is an explanatory diagram illustrating a ladder program for two pages created in a page mode, and FIG. 18B is an explanatory diagram illustrating a user screen for two pages corresponding to the ladder program of FIG. It is.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Programmable display (display function part, control function part) 2 PLC (control function part) 3 Computer device (display function part, control function part) 4 I / O device (control target device) 5 Recording medium 32a Ladder editor (second) Editor means) 32a ₁ Ladder window (second editor screen) 32b ₂ Basic component database 32b Drawing editor (first editor means) 32b ₁ Drawing window (first editor screen) 32c Ladder analyzer (extraction means) 32c ₁ Keyword detector 32c ₂ parts extraction section 33a ladder file 33b screen file 33c part file P ₁ to P ₄ parts (image blocks)

Claims (9)

[Claims] 1. A display / control system having a display function unit for displaying a state of a control target device and a control function unit for controlling an operation of the control target device. First editor means for creating a display content program for defining the content in response to an input operation on the first editor screen, and a control procedure program for defining a control procedure to be executed by the control function section are described in a second editor. An editor device comprising: a second editor means for creating in response to an input operation on a screen, wherein instructions for configuring the control procedure program are previously stored in an image block for configuring the content display program. A plurality of image blocks corresponding to the instructions included in the control procedure program created by the second editor means are associated with the plurality of instructions. An editor device comprising extraction means for extracting the following. 2. The editor device according to claim 1, wherein the extracting means registers the extracted image blocks in units of one screen of the display content program. 3. The editor device according to claim 2, wherein said extracting means extracts image blocks collectively for a single control procedure program. 4. The editor device according to claim 1, wherein said extracting means extracts attribute information on the command together with an image block. 5. A display / control system having a display function unit for displaying a state of a device to be controlled and a control function unit for controlling the operation of the device to be controlled. A first editor process for creating a display content program for defining the content in accordance with an input operation on the first editor screen, and a control procedure program for defining a control procedure to be executed by the control function unit, A computer-readable recording medium in which an editor program including a second editor process for creating in response to an input operation on a screen is recorded, wherein instructions for configuring the control procedure program are stored in the display content program. And the control procedure program created by the second editor process, in association with image blocks for constructing A recording medium storing an editor program, characterized by including an extraction process for extracting an image block corresponding to an instruction included in a plurality of instructions. 6. A display / control system having a display function unit for displaying a state of a device to be controlled and a control function unit for controlling the operation of the device to be controlled. A first editor process for creating a display content program for defining the content in response to an input operation on the first editor screen or a control procedure program for defining a control procedure to be executed by the control function unit on a second editor screen A computer-readable recording medium recording an editor program including one of a second editor process for creating in accordance with the input operation described above, wherein the instructions for configuring the control procedure program are displayed. The control program created by the second editor process while associating in advance with an image block for forming a content program A recording medium recording an editor program, characterized by including an extraction process for extracting an image block corresponding to an instruction included in a procedure program for a plurality of instructions. 7. The recording medium according to claim 5, wherein the extraction process registers the extracted image blocks in units of one screen of a display content program. 8. The recording medium according to claim 7, wherein said extraction process collectively extracts image blocks for a single control procedure program. 9. The recording medium according to claim 5, wherein the extraction process extracts attribute information on the command together with an image block.