JP2003030263A - Device for supporting control circuit design - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a control circuit design supporting device capable of reducing time for completion and cost involved in production of a control panel. SOLUTION: A controlling part design supporting device for designing a controlling part for controlling a device to be controlled is provided with: a sequence control program preparing part 1a for preparing the whole of the controlling part with a logic circuit by replacing a part composed of hardware in the controlling part by the logic circuit; and a simulation performing part 1b for simulating the logic circuit. In the case an error occurs in simulation results, the sequence control program preparing part 1a reprepares the logic circuit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control circuit design support device for designing a control circuit for controlling a controlled device, and in particular checking the malfunction thereof before actually creating a hardware part. Is something that can be done.

[0002]

2. Description of the Related Art FIG. 23 is a conventional relay sequence diagram,
FIG. 6 is a diagram showing a flowchart of basic steps of design work of a control circuit including a sequence control program.
The conventional control circuit design work will be described with reference to the drawings. First, the system specifications for control are examined (Fig. 2
Step A1 of 3). Next, the device to be controlled and the interface of the system are examined (Fig. 23).
Step A2). In considering this interface,
All the signals that are input / output to / from the system and equipment are identified and managed by assigning an address to each input / output signal.

Next, in designing a control circuit, a portion (hardware portion) created by a relay sequence diagram and a portion (software portion) created by a sequence control program are clearly separated. Depending on the case, all may be created by a relay sequence diagram. When the system is composed of the hardware part and the software part, not only the relay sequence diagram is created in this way, but also the control circuit of the software part is created by the sequence control program.

Next, a relay sequence diagram is drawn (step A3 in FIG. 23). Next, when the work of drawing the relay sequence diagram is completed, the logic check is visually performed on the relay sequence diagram (step A4 in FIG. 23). When a defect is found by visual logic check, the process returns to step A3 and the relay sequence diagram is drawn again. Next, the control panel is manufactured based on the relay sequence diagram for which the logic check is completed (Fig. 2).
3 step A5).

Next, when the system is constructed by software logic, a sequence control program is created (step A6 in FIG. 23). Next, the created sequence control program is debugged by the simulator (step A7 in FIG. 23). Next, if a defect is found during debugging, the process returns to step A6 to make a correction.

Next, a comprehensive operation test is conducted by actually using the completed control panel and the sequence control program for which debugging has been completed (step A8 in FIG. 23). Then, by a comprehensive operation test, a comprehensive operation check of the created relay sequence diagram of the hardware part and the sequence control program which is software is performed. If it does not operate normally, review the sequence control program (step A6 in FIG. 23), review the relay sequence diagram (step A3 in FIG. 23), or determine the interface with the device (step A2 in FIG. 23). Return to. If the operation is confirmed to be in accordance with the system specifications by the operation check of the comprehensive operation test, the control panel is completed (step A in FIG. 23).
9).

In order to confirm whether the created control circuit operates as intended by the designer, it is most certain to actually operate the one created according to the drawing and perform the test. Also, in the world of software programming, a simulator that virtually executes a created program on a device is widely used, which is useful for improving design quality.

[0008]

Since the conventional control circuit is created as described above, the control circuit is actually controlled in order to sufficiently check the operation of the control circuit described in the created relay sequence diagram. You have to make a board. And if an error is found in the comprehensive operation test after the control panel is manufactured, it may be necessary to re-manufacture the control panel, which leads to a longer construction period for manufacturing the control panel and an increase in manufacturing cost. .

Further, when the control circuit is composed of a plurality of control boards, or when part of the control circuit is composed of a software part such as a programmable logic controller, the control range of each control is clarified at the initial design stage. I have to keep it. Especially, in the latter case, there is a problem that it is difficult to ensure mutual mutual correspondence when combining the separately manufactured relay sequence diagram and the sequence control program.

Further, the relay sequence diagram is composed of a large number of devices such as relays and a large amount of wirings for connecting them. In order to manufacture a control panel, it is necessary to assign unique identifiers to all of these lines, and to perform operations by instructing various devices and terminals for connecting them without making a mistake. This imposes a heavy burden on the designer, and causes problems such as increased work time and human error.

The present invention has been made to solve the above problems, and it is possible to perform an operation confirmation test of a control circuit before manufacturing an actual control panel.
To improve the design quality and reduce the construction period and manufacturing cost of the control panel by enabling reliable connections between the relay sequence diagram and the sequence control program, control panels, instruments, and drawings. The purpose is to obtain a control circuit design support device capable of performing.

[0012]

[Means for Solving the Problems] Claim 1 according to the present invention
The control circuit design support device is a control circuit design support device for designing a control circuit for controlling a controlled device. A logic circuit creation unit that creates a portion of the above with a logic circuit and a simulation execution unit that simulates the logic circuit are provided, and if a defect occurs in the simulation result, the logic circuit creation unit recreates the logic circuit. It is something to do.

According to a second aspect of the present invention, there is provided a control circuit design support apparatus, wherein the hardware portion of the logic circuit determined to be normal by the simulation executing section in the first aspect is converted into a hardware circuit diagram. It is provided with a conversion unit for converting.

According to a third aspect of the present invention, there is provided a control circuit design support device according to the first or second aspect, wherein the control circuit is a mixture of hardware and software. In the control circuit, a mark that can be recognized as a hardware or software part is added, and in the conversion unit, only a portion corresponding to the hardware in the control circuit is extracted and converted. And the connection between the software and the software is designed based on the signs.

According to a fourth aspect of the present invention, there is provided the control circuit design support device according to any one of the first to third aspects, wherein the control circuit includes a plurality of groups of hardware. The logic circuit creation unit adds a recognizable group marker for each group, and the conversion unit designs the connection between the groups based on the group marker.

According to a fifth aspect of the present invention, there is provided the control circuit design support apparatus according to any one of the first to fourth aspects, wherein the logic circuit creating section has the same electrically characteristic property among the control circuits. A recognizable electric wire marker is added to each electric wire that the electric wire has, and the conversion unit is designed based on the electric wire marker.

According to a sixth aspect of the present invention, there is provided the control circuit design support apparatus according to any one of the first to fifth aspects, wherein the logic circuit creating section assigns an instrument model name to each component forming the control circuit. The allocating / converting unit acquires information about the appliance from the appliance model name and manages the presence / absence of wiring to the terminal of the appliance.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. An embodiment of the present invention will be described below with reference to the drawings. 1 is a block diagram showing the configuration of a control circuit design support device for supporting the design of a control circuit according to the first embodiment of the present invention, and FIG. 2 illustrates the operation of the control circuit design support device shown in FIG. It is the figure which showed the flowchart for. In the figure, reference numeral 1 is a processing unit, which is provided with a sequence control program creation unit 1a for creating a control logic circuit by a user combining parts corresponding to control symbols, control command statements, and the like.

Further, a simulation execution section 1b for virtually executing the created sequence control program to simulate the operation of the control logic circuit, and a sequence control program created by the sequence control program creation section 1a are part conversion databases described later. 5b, and a program conversion unit 1c for converting into a relay sequence diagram.

Reference numeral 2 denotes an input device for the user to input to the processing unit 1, for example, the sequence control program creating unit 1a.
It is for performing the above work, inputting / editing data, executing various commands, and the like. 3 is a display device for displaying the contents of work currently performed by the user, the state of the device, the output result of the program converting unit 1c, and 4 is a sequence control program created by the program creating unit 1a and is created by the program converting unit 1c. It is a printing device for printing out the relay sequence diagram etc. which have been made on paper.

Reference numeral 5 is a file unit connected to the processing unit 1.
For example, it is composed of a disk device or the like. Then, a sequence control program storage unit 5a for storing the sequence control program created by the sequence control program creation unit 1a, each device used in the sequence control program stored in the sequence control program storage unit 5a, and a relay sequence A parts conversion database 5b in which parts used in the drawing are associated and registered.

Further, the connection conversion database 5c in which the connection method of each device in the sequence control program and the connection method of each device in the relay sequence diagram are registered in association with each other, and the device used in the sequence control program. The device attribute list 5d for recording the attribute values of the above, and the relay sequence drawing storage unit 5f for storing the relay sequence drawing obtained by converting the sequence control program by the program converting unit 1c. Although 5e is an instrument database, it is used in a sixth embodiment described later, and a description will be added at that time.

Next, the first embodiment configured as described above
The operation of the control circuit design support device will be described. In the first embodiment, the case where all parts of the control circuit are configured by hardware will be described as an example. First, the system specifications for control are examined (step A in FIG. 2).
1). Next, the device to be controlled and the interface of the system (control device) are examined (step A2 in FIG. 2). In the study of this interface, all the signals to be input / output to / from the system and equipment are identified and managed by assigning an address to each input / output signal.

Next, the user (designer) creates all of the control circuits by the control logic circuit in the sequence control program creating section 1a of the processing section 1 via the input device 2 (step B3 in FIG. 2). Then, the user can confirm the sequence control program through the display device 3. It is also possible to print on paper using the printing device 4.

Next, when the creation is completed, the control logic circuit created by the designer using the sequence control program creation unit 1a is virtually operated on the simulation execution unit 1b, and a logic error or the like of the control logic circuit is found. (Step B4 in FIG. 2). Here, the simulation executing unit 1b not only performs the operation confirmation based on the condition given by the designer, but also has the function of automatically finding an obvious error in the control logic circuit and confirms it at the same time.

Also in this simulation, it is possible to confirm the progress through the display device 3 and to print on paper using the printing device 4. Then, if an error is found, the process returns to step A2 and step B3, the program is edited on the sequence control program creating section 1a, the operation is confirmed again using the simulation executing section 1b, and the control logic for performing the intended operation is executed. Create the circuit.

Then, the control logic circuit whose logic circuit check has been completed is converted into a relay sequence diagram (step B5 in FIG. 2). Next, a control panel is manufactured based on the relay sequence diagram (step A5 in FIG. 2). Next, a comprehensive operation test is performed by actually using the completed control panel (step A8 in FIG. 2).

Then, if the operation is not normal in the comprehensive operation test, the sequence control program is reviewed (step B3 in FIG. 2) and the interface with the device is determined (step A2 in FIG. 2). If the operation is confirmed to be in accordance with the system specifications by the operation check of the comprehensive operation test, the control panel is completed (step A9 in FIG. 2).
In addition, in order to carry out a comprehensive operation test after being logically confirmed,
As described above, the failure in the comprehensive operation test is rare, and is considered due to the failure due to, for example, a substantial hardware failure.

A specific example will be described below. The designer uses the sequence control program creation unit 1a to create a control logic circuit. First, it is assumed that the sequence control program creation unit 1a incorporates the concepts of "power supply" and "appliance attribute" into a normal sequence control program creation device, for example. Then, when the designer designs a circuit related to a power supply, for example, a power supply branch is created as shown in FIG. Then, a control logic circuit as shown in FIG. 4 is created in association with them.

Two vertical lines 4a, 4b, 4c and 4d on the left and right of the control logic circuit of FIG. 4 represent power supplies. And
In cooperation with the power supply branch created earlier in FIG. 3, each circuit can be turned on and off individually. In addition, the contacts and coils that make up the circuit each have device attributes. The appliance attribute is the type of appliance to which the contacts and coils correspond in the control panel, and is, for example, a relay, a timer, a push button switch, or a lamp. The designer sets appropriate instrument attributes from these and combines the contacts and coils to create the control logic circuit. Next, the operation of the control logic circuit is confirmed using the simulation execution unit 1b.

Next, when the debugging on the simulation executing unit 1b is completed (step B4 in FIG. 2) and it is judged as OK, the created sequence control program is passed to the program converting unit 1c and the relay sequence diagram is displayed. Convert. The rules for converting the parts of the sequence control program into the parts of the relay sequence diagram are registered in the parts conversion database 5b. The conversion rules of these connection methods are registered in the connection conversion database 5c.

The program conversion unit 1c decomposes the sequence control program created by the designer into parts, and converts all the sequence control program parts into relay sequence parts with reference to the parts conversion database 5b. Then, referring to the connection conversion database 5c, they are connected and reconfigured to create a relay sequence diagram.

Next, the details of the program conversion unit 1c will be described. The sequence control program of FIG. 4 is written in the form of a ladder diagram. Inside, it is composed of a set of sequence instructions as shown in FIG. This ladder diagram is obtained by converting this set of sequence instructions (shown in FIG. 5) into a visual representation so that the designer can easily understand it. The method of expressing the ladder diagram is configured in a form similar to the relay sequence diagram so that it is easy for the designer who has created the relay sequence diagram to become familiar with.

In the program conversion unit 1c, the ladder diagram created by the designer is decomposed into sequence instructions to build a list structure. Then, referring to the parts conversion database 5b, each command is converted into a part of the relay sequence diagram based on its type and appliance attribute. Then, the relay sequence diagram is created by performing the rearrangement while referring to the connection conversion database 5c based on the created list structure.

First, a method of creating a list structure will be described. In the present invention, a list structure is constructed using a stack from the sequence instruction group of the list of the sequence control program. The list structure is composed of a set of cells including a data part and a pointer part as shown in FIG. The data structure is characterized in that a group of cells are connected by pointers. A stack is a one-dimensional data structure that puts out what is inserted later.

The type of sequence instruction, which is the internal expression of the sequence control program, is referred to in the order of steps, and the list structure is constructed by using the stack according to the rule. Figure 7
Shows the rules for basic sequence instructions. FIGS. 8 and 9 show the transition of the stack and the list structure when building the list structure for the programs in the upper part of FIGS. 4 and 5.

Based on the list structure thus constructed, the parts conversion database 5b and the connection conversion database 5c.
Create a relay sequence diagram by referring to. In the relay sequence diagram, a line representing the primary side (+) power source and a line representing the secondary side (−) power source are described on the upper part and the lower part, respectively. Then, various devices are connected between them to form a logic circuit. The pointers are sequentially traced from the head of the list structure, and all devices are connected in a form corresponding to the instruction type of the device while referring to the connection conversion database 5c.

When arranging the device on the relay sequence diagram, referring to the parts conversion database 5b, the parts are arranged according to the type of command and the instrument attribute of the device. Finally, the primary side connects all unconnected devices to the primary side power supply line. Then, the conversion of the list structure into the relay sequence diagram is completed.

FIG. 10 shows an example of parts conversion according to the type of command and the appliance attribute stored in the parts conversion database 5b. FIG. 11 shows an example of connection conversion into a relay sequence diagram according to the types of commands stored in the connection conversion database 5c. FIG. 12 shows a relay sequence diagram after the sequence control program of FIG. 4 is converted.

The control circuit design support apparatus according to the first embodiment having the above-described configuration is used after the sequence control program created by the sequence control program creation unit 1a is tested for operation on the simulation execution unit 1b. ,
It is possible to convert to a relay sequence diagram. Then, the operation test of the logic circuit can be performed and correction can be performed before actually manufacturing the control board. Therefore, it is possible to produce a drawing in which it is guaranteed that the operation intended by the designer is performed before producing the control panel. In addition, there is almost no malfunction in the operation of the comprehensive test after the control panel is manufactured. In addition, it is possible to reduce the construction period and cost for creating the control panel.

Embodiment 2. In the first embodiment, the simulation execution unit 1b confirms the operation of the control logic circuit described in the format of the sequence control program, and then the program conversion unit 1c and the parts conversion database 5b convert the whole into a relay sequence diagram. , The case of obtaining a relay sequence diagram whose operation is guaranteed before manufacturing the control panel has been described. In the second embodiment, a portion (hardware) configured by the relay sequence from the sequence control program created by the designer. And a part (software) configured by a sequence control program are selected, and only the part selected to be configured by the relay sequence is subjected to the same process as the conversion process of the first embodiment, and the non-selected part is sequence-controlled as it is. The case of making it available as a program will be described.

FIG. 13 is a diagram showing a flowchart of the operation of the control circuit design support apparatus according to the second embodiment of the present invention. The operation of the control circuit design support apparatus according to the second embodiment of the present invention will be described with reference to the drawings. First, after determining an interface with a device as in the first embodiment (step A2 in FIG. 13), a control circuit is created (FIG. 13).
In step B3), the selection of the part made up of hardware and the part made up of software in the sequence control program created by the designer is set to "software", for example, in the item of the attribute set to the contact and the coil. It is realized by adding "*".

It should be noted that the example in which the software is given a type is shown here, but the present invention is not limited to this, and needless to say, the type may be given so that the hardware and the software can be discriminated from each other.

Next, when the debugging in the simulation executing section is completed (step B4 in FIG. 13) and it is judged to be OK, the created sequence control program is passed to the program converting section 1c, and a part constituted by hardware is provided. Only the relay sequence diagram is converted in the same manner as in the first embodiment (step B5 in FIG. 13). Also, the signal exchange between the relay sequence diagram and the sequence control program is set. This conflict will be described in detail later.

Next, a control board is manufactured based on the relay sequence diagram (step A5 in FIG. 13). Next, a comprehensive operation test is performed using the completed control panel and sequence control program (step A8 in FIG. 13). If the integrated operation test does not result in normal operation, review the sequence control program (step B in FIG. 13).
3) and determining the interface with the device (step A2 in FIG. 13). If the operation is confirmed to be according to the system specifications by the operation check of the comprehensive operation test, the control panel and the sequence control program are completed (step A9 in FIG. 13).

The signal exchange between the relay sequence diagram and the sequence control program will be described below with reference to a specific example. The control circuit is created as shown in FIG. As is clear from FIG. 14, the software portion is marked with “*” in front of it so that the type can be determined (see * Y001 and * M001 in FIG. 14).

FIG. 15 shows a relay sequence diagram generated after conversion by the sequence control program shown in FIG. The connection list is an external drawer or an I / O device that exchanges signals with a control circuit configured with a relay sequence diagram and a control circuit configured with a sequence control program.
This is a list of combinations of / 0. And
A hardware circuit and a software circuit need to be in agreement with each other, among the contacts that affect the operation of the coil having the software attribute, those having the hardware attribute and the operation of the coil having the hardware attribute. Among the contacts that have an impact on, those that have software attributes.

When the contacts corresponding to these are found, for example, I / O addition processing to the software circuit and external drawing processing to the hardware circuit are performed, and the connection status is stored and output as a connection list. For example, in FIG.
The contact 14 that affects the relay coil 14a in 4
Since the software attribute is set for b, it is necessary to deal with it. Then, in the program conversion unit 1c,
The relay sequence diagram as shown in 15a and 15b of No. 5 will be created.

Similarly, the contact 14d that affects the software coil 14c needs to be dealt with because its hardware attribute is set. Then, the program conversion unit 1c creates a relay sequence diagram as shown in 15c and 15d of FIG.

The control circuit design support apparatus according to the second embodiment configured as described above can automatically extract the connection relation of the control of the hardware portion and the software portion as the connection list. The design of equipment having a control circuit that uses both software and hardware can be performed in the same manner as in the first embodiment.

In the following embodiments, the contents of the control panel before the sequence control program is created and after the conversion process, such as the production of the control panel and the comprehensive test, can be performed in the same manner as in the above-mentioned embodiments, and the description thereof will be omitted as appropriate.

Embodiment 3. In the third embodiment of the present invention, the coils and contacts forming the control circuit are input with information for each control panel housed when the control panel is manufactured, and the control connection relationship between different control panels is automatically extracted as a cable list. Will be described.

FIG. 16 is a diagram showing a flow chart of the operation of the control circuit design support device according to the third embodiment of the present invention. The operation of the control circuit design support apparatus according to the third embodiment of the present invention will be described with reference to the drawings. First, when there are a plurality of control boards as a group consisting of a plurality of hardware, information on the control board in which the coils and contacts of the sequence control program are stored is set.

Therefore, when the control circuit is created (step B3 in FIG. 16), the control panel attributes are incorporated in the coils and the contacts. For example, the designer inputs a symbol that can uniquely identify the control panel in which the device is stored, such as a control panel name or a control panel symbol, for all parts as a control panel attribute (step B31 in FIG. 16). . FIG. 17 shows an example of the data structure of the coils and contacts to which the control panel attributes are added.

Next, the program converting unit 1c converts the sequence command into a sequence command (step C1 in FIG. 16) and constructs a list structure (step C2 in FIG. 16) as in the above-described embodiments. Next, a cable list for connecting the control boards will be described. The cable list is a list of interfaces between control boards of a control circuit composed of a plurality of control boards. It corresponds to a list of cables connecting the control boards to each other, and the cable list is automatically extracted during the conversion process of the program.

A cable requires a contact having a control panel attribute different from that of the coil among contacts affecting the operation of the coil, and a contact corresponding to this is found (step C3 in FIG. 16). . When such a contact is found, a cable list is created (step C4 in FIG. 16). Next, the relay sequence circuit is subjected to external drawing processing, etc., and the connection status thereof is saved as a cable list to create a drawing (step C5 in FIG. 16).

The control circuit design support apparatus according to the third embodiment having the above-described configuration is configured to add the control board attributes of a plurality of control boards, and thus has a control circuit composed of a plurality of control boards. You can also design equipment, and
These negotiations can be surely made by creating a cable list.

Fourth Embodiment In the above-described third embodiment, there are a plurality of control boards in which the parts that make up the control circuit are housed, and by incorporating the control board attributes for inputting the information of the control boards into the parts, it is possible to connect the cables over a plurality of control boards. Although the case of automatic extraction as a list has been described, in the fourth embodiment, the designer arbitrarily inserts a sheet (group in which a plurality of hardware exists) delimiter into the control logic circuit written by the sequence control program. , It is possible to automatically extract the connection relation of the control over multiple sheets and reflect it in the relay sequence diagram.

FIG. 18 is a diagram showing a flowchart of the operation of the control circuit design support apparatus according to the fourth embodiment of the present invention. The operation of the control circuit design support device according to the fourth embodiment of the present invention will be described with reference to the drawings. Conventionally, generally, a relay sequence diagram is often used by being printed on paper, and usually consists of a plurality of sheets. Each sheet is given a unique sheet page or sheet name, and a table of contents as a drawing list is attached. All of these are created and managed by the designer, which is a heavy burden.

Here, a sequence control program is created in the same manner as in each of the above embodiments (step B in FIG. 18).
At the time of 3), the designer explicitly designates the delimiter of the sheet (group) when printing on paper on the sequence control program (step B32 in FIG. 18). Next, in the program conversion unit 1c, as in each of the above-described embodiments, the program is converted into a sequence command (step C1 in FIG. 18) and a list structure is constructed (step C2 in FIG. 18). Next, from this list structure, between sheets with different control circuits (sheet separation)
It is determined whether or not it is over (step D1 in FIG. 18).

Next, when the control circuit exists across the sheet breaks, the information of the relevant partial connection destination is added to each sheet break (setting of sheet calling) (FIG. 18).
Step D2). Next, when converting the sequence control program into the relay sequence diagram by the program conversion unit 1c, the program conversion unit 1c converts the sequence control program between the sheet breaks designated by the designer into the relay sequence diagram. It is developed on one sheet (step C5 in FIG. 18).

Next, a unique sheet page and unique sheet name are automatically or manually entered by the designer using the management tool for one sheet thus created (step in FIG. 18). D3). Next, a sheet table of contents can be automatically generated by automatically creating these lists (step D4 in FIG. 18). The above steps C5, D3, and D4 are performed between all sheet breaks. In this way, when the table of contents is generated and one control circuit is divided into a plurality of sheets (groups) at the time of printing, the connection relationship is written in the corresponding sheet page of the drawing. As a result, the calling (connection destination) of the same control circuit over a plurality of sheets can be surely reflected in the drawing.

The control circuit design support apparatus according to the fourth embodiment configured as described above sets a plurality of sheet breaks in the sequence control program, converts each sheet break into a relay sequence diagram, and converts it into one sheet of paper. The sheet page, the sheet name, and the table of contents can be easily set when printed, and the connection of the portions beyond the sheet (group) can be surely reflected.

Embodiment 5. In the fifth embodiment of the present invention, description will be given of a method of automatically assigning a unique identifier to a wire in a circuit by providing a means for finding a wire having an electrically identical property by using a list structure.

FIG. 19 is a diagram showing a flowchart of the control circuit design support apparatus according to the fifth embodiment of the present invention. The operation of the control circuit design support apparatus according to the fifth embodiment of the present invention will be described with reference to the drawings. First, as in each of the above embodiments, a sequence control program is created (step B3 in FIG. 19), converted into a sequence command (step C1 in FIG. 19), and a list structure is constructed (step C2 in FIG. 19). Next, here, as a connection conversion database, a database to which an item regarding the property of the line is added is prepared.
Then, referring to the connection conversion database, find an electric wire having the same electrical property (step E in FIG. 19).
1).

FIG. 20 shows a part of the contents of the connection conversion database in which the item regarding the property of the line is added. Here, the line numbers are not limited to simple numbered serial numbers, but may be serial numbers including, for example, a sheet page or an alphabet. Next, a unique line number is assigned to each (step E2 in FIG. 19). Next, a drawing is created by reflecting this line number (step C in FIG. 19).
5).

The control circuit design support apparatus according to the fifth embodiment configured as described above can uniquely identify all the electric wires that connect the instruments that form the control circuit.

Sixth Embodiment In the sixth embodiment, the coils and contacts in the sequence control program are given information on the model name of the corresponding device in the control panel, and the device database 5e (FIG.
See). As a result, the terminals to be connected to the device can be automatically assigned.

FIG. 21 is a flow chart for explaining the operation of the control circuit design support device according to the sixth embodiment of the present invention. First, similarly to each of the above-described embodiments, a sequence control program is created (step B in FIG. 21).
3). Next, a device model name attribute is added in order to have the model name information of the device in the coils and contacts in the sequence control program (step B33 in FIG. 21).

FIG. 22 shows an example of the data structure of the coil and the contact in this case. An instrument database 5e (see FIG. 1) that stores the model name of the instrument and data relating to the instrument, for example, the type, number, and terminal number of the contacts possessed by the instrument is prepared in the file unit 5 in advance. Next, it is converted into a sequence command (step C1 in FIG. 21) and a list structure is constructed (step C2 in FIG. 21).

Next, the program conversion unit 1c refers to the instrument database 5e based on the instrument model name attribute of the part, selects the terminal number that matches the property of the part, and assigns the terminal (step in FIG. 21). F1). Next, a device terminal management table in which the terminals used for each device name are entered is created (step F2 in FIG. 21). This manages the new terminal so that it cannot be used.

Next, the number of contacts of the device is compared with the number of terminals used (step F3 in FIG. 21). If the number of terminals used is large, the program conversion section 1c operates in the same manner as the coil. A coil (apparatus) for automatically adding is added (step F4 in FIG. 21). This makes it possible to allocate surplus contacts.

The control circuit design support apparatus according to the sixth embodiment having the above-described configuration can confirm the presence / absence of wiring to the terminal of the device, and can add a desired device if there is a shortage.

[0074]

As described above, according to the first aspect of the present invention, in the control circuit design support device for designing the control circuit for controlling the controlled device, the hardware is included in the control circuit. A logic circuit creation unit that creates all the parts of the control circuit by using the logic circuits as the constituent parts and a simulation execution part that simulates the logic circuit, and if there is a defect in the simulation result, Since the logic circuit is recreated by the logic circuit creation unit, it is possible to provide a control circuit design support device capable of simulating and logically confirming a control circuit realized by a relay sequence.

According to a second aspect of the present invention, there is provided a conversion section for converting the hardware portion of the logic circuit determined to be normal by the simulation execution section in the first aspect into a hardware circuit diagram. Since it is provided, it is possible to provide a control circuit design support device capable of creating hardware after simulating and logically confirming a control circuit realized by a relay sequence.

According to a third aspect of the present invention, in the first or second aspect, when the control circuit is a mixture of hardware and software, in the logic circuit creating section, A label that can be recognized as hardware or software is added, and the conversion unit extracts only the portion of the logic circuit that corresponds to the hardware and performs conversion, and the connection between the hardware and software is labeled. Since it is designed based on, it is possible to provide a control circuit design support device capable of reliably connecting hardware and software.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the control circuit includes:
If there are multiple groups of multiple hardware,
The logic circuit creation unit adds a recognizable group marker for each group, and the conversion unit designs the connection between each group based on the group marker. It is possible to provide a control circuit design support device capable of confirming connection.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the logic circuit creation unit recognizes each electric wire in the control circuit which has electrically the same property. It is possible to provide a control circuit design support device capable of easily confirming an electric wire having the same property because a possible electric wire mark is added and the conversion unit is designed based on the electric wire mark.

According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the logic circuit creating section assigns an instrument model name to each component forming the control circuit, and the converting section The device information is acquired from the model name of the device and the presence / absence of wiring to the device terminals is managed.Therefore, the presence / absence of wiring to the device terminals can be managed. It is possible to provide a control circuit design support device that can be installed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a control circuit design support device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a flowchart for explaining an operation of the control circuit design support device shown in FIG.

FIG. 3 is a diagram showing an input example of a power supply branch according to the first embodiment of the present invention.

FIG. 4 is a diagram showing an example of a sequence control program according to the first embodiment of the present invention.

5 is a diagram showing a sequence instruction expression of the sequence control program shown in FIG.

FIG. 6 is a diagram showing the concept of cells constituting the list structure according to the first embodiment of the present invention.

FIG. 7 is a diagram showing rules for constructing a list structure according to the first embodiment of the present invention.

FIG. 8 is a conceptual diagram showing a transition of a stack and a list structure when constructing a list structure for the upper sequence control program shown in FIG.

9 is a conceptual diagram showing a transition of a stack and a list structure when constructing a list structure for the upper sequence control program shown in FIG.

FIG. 10 is a diagram showing an example of a parts conversion database according to the first embodiment of the present invention.

FIG. 11 is a diagram showing an example of a connection conversion database according to the first embodiment of the present invention.

12 is a relay sequence diagram obtained by converting the sequence control program shown in FIG.

FIG. 13 is a diagram showing a flowchart for explaining the operation of the control circuit design support device according to the second embodiment of the present invention.

FIG. 14 is a diagram showing an example of a sequence control program according to the second embodiment of the present invention.

15 is a relay sequence diagram obtained by converting the sequence control program shown in FIG.

FIG. 16 is a diagram showing a flowchart for explaining the operation of the control circuit design support device according to the third embodiment of the present invention.

FIG. 17 is a conceptual diagram showing information held by the device according to the third embodiment of the present invention.

FIG. 18 is a diagram showing a flowchart for explaining the operation of the control circuit design support device according to the fourth embodiment of the present invention.

FIG. 19 is a diagram showing a flowchart for explaining the operation of the control circuit design support device according to the fifth embodiment of the present invention.

FIG. 20 is a diagram showing an example of a connection conversion database according to the fifth embodiment of the present invention.

FIG. 21 is a diagram showing a flowchart for explaining the operation of the control circuit design support device according to the sixth embodiment of the present invention.

FIG. 22 is a conceptual diagram showing information held by the device according to the sixth embodiment of the present invention.

FIG. 23 is a view showing a flowchart for explaining the operation of the conventional control circuit design support device.

[Explanation of symbols]

1 processing unit, 1a sequence control program creation unit,
1b Simulation Execution Unit, 1c Program Conversion Unit, 2 Input Device, 3 Display Device, 4 Printing Device, 5
File section, 5a Sequence control program storage section,
5b Parts conversion database, 5c Connection conversion database, 5d Device attribute list, 5e Instrument database, 5f Relay sequence drawing storage unit.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Akira Yoshimoto             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd. (72) Inventor Tomotake Kitano             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd. F-term (reference) 5B046 AA07 BA07 CA04 DA05 GA01                       GA02 JA03 JA05                 5B048 AA01 DD14 DD15                 5H220 BB09 CX02 JJ12 JJ24 JJ42                       JJ57 KK08 LL06

Claims (6)

[Claims] 1. A control circuit design support device for designing a control circuit for controlling a controlled device, wherein a portion of the control circuit configured by hardware is a logic circuit and all of the control circuits are provided. A logic circuit creation unit that creates a location with a logic circuit and a simulation execution unit that simulates the logic circuit are provided. If a defect occurs in the result of the simulation, the logic circuit creation is performed to recreate the logic circuit. A control circuit design support device characterized in that it is performed by a department. 2. The control circuit according to claim 1, further comprising a conversion unit that converts a hardware portion of the logic circuit determined to be normal by the simulation execution unit into a hardware circuit diagram. Design support device. 3. When the control circuit is a mixture of hardware and software, the logic circuit creation unit adds a marker recognizable as the hardware or the software portion of the control circuit. , In the converter,
The part of the control circuit corresponding to the hardware is extracted and converted, and the connection between the hardware and the software is designed based on the sign. Control circuit design support device. 4. When the control circuit has a plurality of groups of a plurality of hardware, the logic circuit creating unit adds a recognizable group marker for each group, and the converting unit adds the group marker. 4. The control circuit design support device according to claim 1, wherein the connection between each group is designed based on the above. 5. The logic circuit creation unit adds a recognizable electric wire marker for each electric wire of the control circuit that has electrically the same property, and the conversion unit designs based on the electric wire marker. The control circuit design support device according to any one of claims 1 to 4, which is characterized. 6. The logic circuit creation unit assigns an instrument model name to each component forming the control circuit, and the conversion unit obtains information about the instrument from the instrument model name, and whether or not there is wiring to a terminal of the instrument. 6. The control circuit design support device according to claim 1, wherein the control circuit design support device manages