JP2010271842A - Control support method, control support program and control support apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate grasping of connection relations among respective sheets, when dividing control diagram data into a plurality of sheets and outputting the sheets. <P>SOLUTION: A connection symbol addition unit 13 in a control support device 1 reads from a storage means and selects two instruction elements, mutually connected by a connection line regarding instruction elements stored in the storage means, and adds, when the two instruction elements belong to different areas, respective connection symbols to connection lines connecting the two instruction elements in sheets of the areas to which the two instruction elements belong, and a sheet output unit 20 outputs the sheets, with the connection symbols added thereto by the connection symbol addition unit 13. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a control support method, a control support program, and a control support apparatus.

As a method for describing a control program for controlling a control target such as a valve or a motor, a control diagram defined by a standardized standard such as IEC61131-3 is used. In IEC61131-3, the control language described in the following control diagrams is defined.
・ LD (ladder logic)
・ SFC (Sequential function chart)
・ FBD (Function block diagram)
・ ST (Structured Text)
・ IL (Instruction List)

  Control diagram data showing programs that operate on the controller for control due to an increase in capacity and speed of the controller for control and an increase in the scale of a plant (such as a sewage treatment plant) should include a plurality of control circuits. Therefore, the area for describing control chart data tends to be very large. In the programming device, even if the control diagram data is vast, scrolling of the screen, multi-monitor, etc. can be freely performed, and the limitation of the width of the control diagram data is being removed.

On the other hand, in general, a sheet is controlled by a paper size such as A3, A4, and letter size, and in order to display information in a size that can be read by a human being, there is a restriction on the amount of information. If vast control diagram data is reduced and printed on one sheet of paper, the print result is too fine to be read, or various circuits are mixed and displayed, making the control circuit difficult to read.
For this reason, Patent Documents 1 to 3 describe a technique for printing a program divided into a plurality of sheets. Thereby, even if the area of each sheet is small, vast control diagram data can be printed on the paper.

JP 2005-301941 A JP 2001-014027 A JP 05-314377 A

  Note that it is necessary to grasp the entire control diagram by moving a plurality of paper surfaces and screens (turning the paper surface and scrolling the screen). In other words, it is important to be able to trace the connection of the program even if only the sheet is viewed in an environment without a programming device.

  However, in the case of a sheet that is just divided into multiple rectangles at the end of the control diagram, the page is divided at a part that is not related to the control unit, so the connection relationship of the control circuit in the entire control diagram of each sheet is grasped. Difficult to do.

  SUMMARY OF THE INVENTION Accordingly, it is a main object of the present invention to solve the above-described problems and to easily grasp the connection relationship between sheets when outputting control diagram data divided into a plurality of sheets.

In order to solve the above problems, the present invention provides a control support method by a control support apparatus that outputs control diagram data described in a control language by dividing a region into a plurality of sheets,
The control support apparatus includes a division condition input unit, a region division unit, a connection symbol addition unit, a sheet output unit, and a storage unit.
The division condition input unit receives an input of a division condition for dividing the control diagram data into regions,
The area dividing unit divides the control diagram data into a plurality of sheets so as to conform to the division condition received by the division condition input unit, and position information of each command element in the control diagram data; By comparing the position information of a plurality of divided sheets, the area to which each command element belongs in the control diagram data is specified, and the correspondence information between each command element and its belonging area is stored in the storage means. Remember,
An area to which the connection symbol adding unit reads and selects two command elements connected to each other by connection lines for each command element stored in the storage means, and to which the command elements belong Are different from each other, add a connection symbol to each connection line connecting the command elements in the sheet of the area to which the command elements belong,
The sheet output unit outputs a sheet to which a connection symbol is added by the connection symbol addition unit.
Other means will be described later.

  According to the present invention, when the control diagram data is divided into a plurality of sheets and output, it is possible to easily grasp the connection relationship between the sheets.

It is a whole lineblock diagram showing this embodiment about one embodiment of the present invention. It is FBD which shows the control diagram of a feedback control system as an example of the control diagram data regarding one Embodiment of this invention. FIG. 2 is an FBD showing a split key different from FIG. 2 for the control diagram data of FIG. 2 relating to an embodiment of the present invention. It is a screen figure which shows the program monitor which a control status output part outputs to the display about the control diagram data of FIG. 2 regarding one Embodiment of this invention. It is FBD which shows an example which moves the position of one command element (FG) about the control diagram data of FIG. 2 regarding one Embodiment of this invention. It is explanatory drawing which shows each sheet | seat which a sheet | seat output part outputs about the control diagram data of FIG. 2 regarding one Embodiment of this invention. It is explanatory drawing which shows each sheet | seat which a sheet | seat output part outputs about the control diagram data of FIG. 5 regarding one Embodiment of this invention. It is a block diagram which shows the area | region information table and command element information table which are produced | generated from the control diagram data of FIG. 2 regarding one Embodiment of this invention. It is a block diagram which shows the connection symbol information table regarding one Embodiment of this invention. It is a flowchart which shows operation | movement of the control assistance apparatus regarding one Embodiment of this invention. It is explanatory drawing which shows an example which added auxiliary information with respect to the output result of the control diagram data of FIG. 2 regarding one Embodiment of this invention.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an overall configuration diagram of the present embodiment.
The control system includes a control support device 1, a controller 2 for control, a control target device 3, a network 4, a display 5, and a printer 6.
The network 4 is a communication network that connects the control support apparatus 1 and the control controller 2.
The control support apparatus 1 is connected with a display 5 and a printer 6 as peripheral devices.
The control controller 2 executes the program indicated by the control diagram data 60 to control the connected control target device 3 (valve, motor, etc.).

  The control support device 1 supports a worker who performs various operations (development, editing, debugging, maintenance, etc.) of the control diagram data 60. As an example of the control plant described in the control diagram data 60, there is a power generation control monitoring system such as thermal power / nuclear power, a traffic control monitoring system, a water and sewage control monitoring system, and an industrial control monitoring system such as a steel or chemical plant. .

The control support device 1 includes a CPU and a memory, and is configured as a computer connected to an input device and an output device (display 5 and printer 6).
The CPU reads and executes a program for configuring each processing unit stored in the memory. The memory stores a program for configuring each processing unit and each data to be processed by each processing unit. The
The display 5 prints each sheet of the control diagram data 60 according to an instruction from the sheet display unit 21.
The printer 6 prints each sheet of the control diagram data 60 according to an instruction from the sheet printing unit 22.

The control support apparatus 1 includes, as processing units, a division condition input unit 11, a region division unit 12, a connection symbol addition unit 13, a sheet output unit 20 (including a sheet display unit 21 and a sheet printing unit 22). And a control state output unit 30.
The control support apparatus 1 stores, as data handled by the processing unit, control diagram data 60, a region information table 61, a command element information table 62, and a connection symbol information table 63 in storage means (memory, hard disk, etc.). To do.

The control diagram data 60 is data in which one or more command elements are connected by a connection line. The information on the command element is stored in the command element information table 62.
The area dividing unit 12 divides the control diagram data 60 into a plurality of areas based on the dividing condition received by the dividing condition input unit 11. One area is an output range of one sheet. The region information is stored in the region information table 61.
The connection symbol adding unit 13 adds a connection symbol to a connection line that crosses an area. The connection symbol information is stored in the connection symbol information table 63.
The sheet output unit 20 cuts out the control diagram data 60 for each region divided by the region dividing unit 12, adds the connection symbol added by the connection symbol adding unit 13, and outputs it. Examples of the output form include a display process executed by the sheet display unit 21 and a print process executed by the sheet printing unit 22.
The control state output unit 30 adds the parameter indicating the operation status of each control target device 3 received via the control controller 2 to the control diagram data 60 and outputs the parameter to the display 5. FIG. 1 shows an example in which the control state output unit 30 outputs to the display 5 without going through the sheet output unit 20 (that is, without dividing the control diagram data 60 into regions), but parameters are added. The control diagram data 60 may be output to the display 5 or the printer 6 via the sheet output unit 20 (that is, the control diagram data 60 is divided into regions).

FIG. 2 is an FBD showing a control diagram of the feedback control system as an example of the control diagram data 60.
The division condition input unit 11 receives input of two area division lines (shown by dotted lines). The area dividing unit 12 uses the two area dividing lines to provide a total of four areas (vertical left upper area 110a, lower left second area 120a, upper right third area 130a). , And is divided into a lower right fourth region 140a). Instead of the region dividing line as shown in FIG. 2, a rectangular dividing line surrounding the region may be used.
In the FBD, a first circuit (in the first region 110a, a second region 120a, and a third region 130a) and a second circuit (in the fourth region 140a) exist.

Each rectangle of the first input 111 to the second output 146 is an FB (Function block) of the control diagram data 60 described in FBD, that is, a command element. Each command element is connected by a connection line, a connection line connected from the left side of the command element indicates an input line, and a connection line connected from the right side of the command element indicates an output line.
That is, in FIG. 2, the same arrow line is an output line when viewed from a certain command element, and an input line when viewed from an adjacent command element. Details of each command element will be described below.

A first input 111, a second input 112, an MR 113, an SG 114, a SUM 115, and a PID 116 exist in the first area 110a. That is, there are six command elements in the first region 110a.
The first input 111 accepts a signal input from the outside and outputs the signal to the MR 113.
The second input 112 receives a signal input from the outside and outputs the signal to the MR 113.
MR 113 is a monitor relay, diagnoses whether the input signal is a normal signal, and outputs the result to SUM 115.
SG 114 is a signal generator and outputs the signal to SUM 115.
The SUM 115 calculates a subtraction (difference) between the two input signals, and outputs the result to the PID 116.
The PID 116 performs a proportional integration operation, generates a control command from the result, and outputs the control command to the ASW 131.

In the second area 120a, a third input 121 and an FG 122 exist. That is, there are two command elements in the second region 120a.
The third input 121 receives a signal input from the outside and outputs the signal to the FG 122. Note that another command element may exist between the third input 121 and the FG 122.
The FG 122 is a function generator and outputs an output result of the function to the ASW 131.

The ASW 131, the fourth input 132, the fifth input 133, the AM 134, and the first output 135 exist in the third area 130a. That is, there are five command elements in the third region 130a.
The ASW 131 is a switch and outputs the result to the AM 134.
The fourth input 132 receives a manual increase command input and outputs the signal to the AM 134.
The fifth input 133 receives an input of a manual reduction command and outputs the signal to the AM 134.
The AM 134 is an analog memory and outputs the recorded contents to the first output 135.
The first output 135 outputs a signal to the outside.

The fourth area 140a includes a sixth input 141, a seventh input 142, an AND 143, an eighth input 144, an OR 145, and a second output 146. That is, there are six command elements in the fourth area 140a.
The sixth input 141 receives a signal input and outputs the signal to the AND 143.
The seventh input 142 receives a signal input and outputs the signal to the AND 143.
The AND 143 performs a logical product (AND) operation and outputs the result to the OR 145.
The eighth input 144 receives a signal input and outputs the signal to the OR 145.
The OR 145 performs a logical sum (OR) operation and outputs the result to the second output 146.
The second output 146 outputs a signal to the outside.

FIG. 3 is an FBD showing a split key different from FIG. 2 for the control diagram data 60 of FIG.
The division condition input unit 11 receives input of explanatory texts for the two connection lines between the command elements.
An explanation text “No. 3 automatic tracking” is input to the connection line between the PID 116 and the ASW 131.
An explanation text “No. 3 automatic command” is input to the connection line between the FG 122 and the ASW 131.
The explanatory text is information for dividing the control diagram data 60 into sheets in a management unit such as a unit in which the control diagram data 60 is likely to change or a unit in which the control diagram data 60 is easy to understand. Depending on the change of the control diagram data 60, it is not canceled or changed. Thereby, an operator and a maintenance worker's work can be supported efficiently.

Then, the area dividing unit 12 divides the control diagram data 60 into four as in FIG. 2 with the connection line of the explanatory text including a predetermined division key (for example, “No. machine”) as a boundary. As another example of the division key, there are auxiliary names (command, follow-up, automatic, etc.) indicating the type of signal and auxiliary names (unit, unit, etc.) indicating individual facilities.
Furthermore, the division name may be a registered facility name itself (for example, a valve, a pump, an operating device (such as a switch), or a display device (such as a lamp)). Accordingly, the control diagram data 60 can be rationalized by using the registered facility name at the input / output boundary with the standardized common sheet.

FIG. 4 is a screen diagram showing a program monitor that the control state output unit 30 outputs to the display 5 for the control diagram data 60 of FIG.
When receiving the program operation status (control result, for example, “8.9”) from each control target device 3, the control controller 2 notifies the control status output unit 30 via the network 4.
The control state output unit 30 displays each notified operation status in association with each connection line as shown in FIG. 4 and continues to update the screen display when the value is changed. Thus, in the display of the program monitor, usability is improved by displaying a plurality of areas on one screen (without dividing them into a plurality of sheets).
In FIG. 4, a balloon is used as an example of the association between the operation status and the connection line. However, as another display format such as displaying the operation status in the vicinity (for example, the upper part) of the connection line. Also good.

FIG. 5 is an FBD showing an example of moving the position of one command element (FG 122) for the control diagram data 60 of FIG.
For example, the control support apparatus 1 accepts an operation of moving the FG 122 that existed in the second area 120a in FIG. 2 to the third area 130a with a pointing device such as a mouse as the editing contents of the control diagram data 60.
The control support apparatus 1 moves the FG 122 while maintaining the connection relationship with respect to the other command elements (third input 121, ASW 131) connected to the FG 122 of the control diagram data 60. Thus, the user can realize the movement of the connection line accompanying the movement of the command element without explicitly instructing the editing operation to the connection line.

FIG. 6 is an explanatory diagram showing each sheet output by the sheet output unit 20 for the control diagram data 60 of FIG.
The first sheet 110b is a sheet obtained by cutting out and outputting the first area 110a (area ID = R1) in FIG.
The second sheet 120b is a sheet obtained by cutting out and outputting the second area 120a (area ID = R2) in FIG.
The third sheet 130b is a sheet obtained by cutting out and outputting the third area 130a (area ID = R3) in FIG.
The connection symbol adding unit 13 adds a first connection symbol 191 and a second connection symbol 192 to each sheet.

The first connection symbol 191 is arranged on the connection line between the PID 116 and the ASW 131 in FIG. The first connection symbol 191 is arranged in both regions (the first region 110a and the third region 130a) in order to indicate the boundary of the connection line of each region with respect to the connection line extending over a plurality of regions. . Similarly, the second connection symbol 192 is arranged on the connection line between the FG 122 and the ASW 131 in FIG.
In each connection symbol, a connection destination area ID and a connection destination connection symbol ID are described. As a result, the user can trace connection lines across a plurality of sheets by referring to the description inside each connection symbol, and the control diagram data 60 is divided into a plurality of sheets. Also, the signal flow of the entire control diagram data 60 can be grasped.
Here, in the present embodiment, the reference numeral of the drawing is used as the connection symbol ID, but this is only an example, and any number or symbol can be used as the connection symbol ID.
As an example of connection line tracking, the user refers to the first connection symbol 191 at the right end of the first sheet 110b (area ID = R1), and the area ID of the connection destination is “R3”. Is confirmed, connection to the first connection symbol 191 (connection symbol ID = 191) of the third sheet 130b (region ID = R3) is confirmed.

FIG. 7 is an explanatory diagram showing each sheet output by the sheet output unit 20 for the control diagram data 60 of FIG.
The connection symbol adding unit 13 recalculates each previously added connection symbol as the command element (FG 122) moves. As a result, the connection symbol adding unit 13 leaves the first connection symbol 191 that is not connected to the FG 122 as it is, and replaces it with the third connection symbol 193 instead of the second connection symbol 192 that is connected to the FG 122.
Specifically, for the second sheet 120b, the FG 122 located on the right side of the third input 121 is deleted, and the second connection symbol 192 located on the right side thereof is replaced with the third connection symbol 193.
For the third sheet 130b, the second connection symbol 192 located on the left side of the ASW 131 is replaced with the third connection symbol 193, and the FG 122 moved this time is added between the third connection symbol 193 and the ASW 131. To do.

FIG. 8 is a configuration diagram showing an area information table 61 and a command element information table 62 generated from the control diagram data 60 of FIG.
The area information table 61 manages the area coordinates, the area version, and the control diagram ID in association with each area specified by the area ID.
For example, the record on the first line indicates the following contents. The area identified by the area ID “R1” is located in the range of the upper left coordinates (0,0) to the lower right coordinates (99,99), and the version “ver1. 1 ”, and the control diagram ID“ P1 ”is assigned to the control diagram data 60 of the division source.

Note that the region version of the region information table 61 is provided for each region. This means that version management is not performed for the entire control diagram data 60 but for each region that is a part of the control diagram data 60. It is to do.
When printing sheets for each area, if the number of sheets increases, every time the control diagram data 60 is updated, all the sheets of the control diagram data 60 are printed. This is inconvenient for maintenance staff. As a result, by omitting the printing of the sheet, the version of the control diagram data 60 as the data and the version of the control diagram data 60 as the printing result (sheet) become inconsistent.
Therefore, by subdividing version management for each sheet, it is possible to reduce the burden on the user by printing only the updated sheet. That is, replacement of the printing paper surface for each updated sheet can be realized.

The command element information table 62 includes, for each command element specified by the command element ID, the command element ID, the name of the command element, the output destination command element ID, the area ID, and the control diagram ID. , And manage.
For example, the record on the first line indicates the following contents. The command element specified by the command element ID “111” is a command element “first input”, and its output terminal is connected to the command element (MR 113) specified by the command element ID “113”. It exists in the area of ID “R1” and exists in the control diagram data 60 of control diagram ID “P1”.
In this embodiment, in order to make the explanation easy to understand, a code is used as the command element ID, but another ID (for example, a serial number starting from 1) may be used.

FIG. 9 is a configuration diagram showing the connection symbol information table 63.
The connection symbol information table 63 on the upper side of FIG. 9 shows the state before the movement of the FG 122 indicated by the control diagram data 60 of FIG. 2 and each sheet of FIG.
The connection symbol information table 63 on the lower side of FIG. 9 shows the state after the movement of the FG 122 indicated by the control diagram data 60 of FIG. 5 and each sheet of FIG.

The connection symbol information table 63 includes, for each connection symbol specified by the connection symbol ID, input side information (information of command elements connected from the left side of the connection symbol) and output side information (connection from the right side of the connection symbol). Information of the instruction element to be processed).
The input side information and the output side information are information on the command element of the other party connected to the connection symbol (control diagram ID to which the command element belongs, area ID to which the command element belongs, command element ID for specifying the command element, And a terminal ID for connecting the connection lines).

In the example of FIG. 9, one connection symbol ID is set per record. Thereby, the connection symbol arranged on the input side and the connection symbol arranged on the output side use the same connection symbol ID, so that the user can easily trace the connection symbol. At this time, the connection symbol ID needs to be unique in the control diagram data 60.
On the other hand, the connection symbol ID may be two per record (input side, output side). At this time, since the connection symbol ID only needs to be unique within the area of the control diagram data 60, the ID assignment process of the connection symbol ID can be facilitated.

  FIG. 10 is a flowchart showing the operation of the control support apparatus 1.

In S <b> 101, the division condition input unit 11 receives an input of a division condition for dividing the area of the control diagram data 60. The dividing condition is, for example, a vertical and horizontal area dividing line as shown in FIG.
In S <b> 102, the area dividing unit 12 divides the area of the control diagram data 60 based on the input dividing condition, and stores the information for each divided area as a result in the area information table 61. .
In S <b> 103, the area dividing unit 12 selects one instruction element stored in the instruction element information table 62 one by one, and coordinates of the selected instruction element and coordinates for each area stored in the area information table 61. To determine the affiliation area for each instruction element and store the affiliation area (area ID) in the instruction element information table 62 in association with each other.

In S <b> 111, the connection symbol adding unit 13 starts a loop for selecting “command element IDs” stored in the command element information table 62 one by one. The command element indicated by the command element ID selected in this loop is referred to as a “selected element”.
In S112, the connection symbol adding unit 13 selects a command element of “output destination command element ID” corresponding to “select element” as “output element”.
In S113, the connection symbol adding unit 13 determines whether or not the “selected element” and the “output element” are arranged in different regions. Specifically, referring to the “area ID” column of the command element information table 62, when the “area ID” of the “selected element” and the “area ID” of the “output element” do not match, different areas Is arranged. If Yes in S113, the process proceeds to S114, and if No, the process proceeds to S115.
In S <b> 114, the connection symbol adding unit 13 generates a new connection symbol and registers it in the connection symbol information table 63. Specifically, the connection symbol adding unit 13 newly issues names that have not been assigned to “connection symbol” and “connection symbol ID”. Then, for the newly issued record, the connection symbol adding unit 13 copies the “selected element” information in the command element information table 62 to the “input side information” in the connection symbol information table 63, and the command element information table 62. The “terminal ID” of each element read from the control diagram data 60 is copied to the “terminal ID” of the connection symbol information table 63. "
In S115, the connection symbol adding unit 13 ends the loop from S111.

In step S121, the sheet output unit 20 receives an input of “sheet display instruction” or “sheet print instruction” as an operation from the user. In accordance with this input, the sheet ID as the output range is also received.
In S122, the sheet output unit 20 branches to display processing or printing processing according to the input instruction. If the instruction is “display” in S122, the process proceeds to S123. If the instruction is “print”, the process proceeds to S124.
In S <b> 123, the sheet display unit 21 creates a sheet in the output range according to the input instruction and displays it on the display 5.
In S <b> 124, the sheet display unit 21 creates a sheet in the output range according to the input instruction and prints it on the printer 6.
Here, instead of selectively selecting the display process of S123 or the print process of S124, the display process of S123 is executed as a preview, and then the same display content is printed on the paper by the print process of S124. It is good to do.

The sheet creation processing in S123 and S124 is realized as follows.
First, the sheets output in S123 and S124 each correspond to the range of one area. The sheet output unit 20 refers to the area coordinates for each area described in the area information table 61 and cuts out the area coordinates of the sheet in the output range from the control diagram data 60.
Then, the sheet output unit 20 refers to the “area ID” in the command element information table 62 and arranges the command elements on the sheets in the output range on each sheet.
Further, the sheet output unit 20 refers to the “area ID” in the connection symbol information table 63, identifies the connection symbol to be arranged on the sheet in the output range, and connects the command element connected to the identified connection symbol to the connection symbol information. It is specified from the “command element ID” in the table 63. The sheet output unit 20 connects the identified connection symbol and the identified command element with a connection line.

FIG. 11 is an explanatory diagram showing an example in which auxiliary information is added to the output result of the control diagram data 60 of FIG.
In the sheet output processing in S123 and S124, the sheet output unit 20 may add auxiliary information indicating the sheet to the output sheet. The sheet output unit 20 adds the first sheet auxiliary information 110c to the first sheet 110b and adds the second sheet auxiliary information 120c to the second sheet 120b.
The first sheet auxiliary information 110c and the second sheet auxiliary information 120c include a “control diagram name” acquired from the control diagram data 60 and a “control diagram ID, region ID, region coordinates, "Region version" is added.

  According to the present embodiment described above, since the sheet output unit 20 outputs the sheet of the control diagram data 60 including the connection symbol added to the control diagram data 60 by the connection symbol addition unit 13, the control diagram data is When dividing and outputting a plurality of sheets, it is possible to easily grasp the connection relationship between the sheets.

DESCRIPTION OF SYMBOLS 1 Control support device 2 Controller 3 Control object apparatus 4 Network 5 Display 6 Printer 11 Division condition input part 12 Area division part 13 Connection symbol addition part 20 Sheet output part 21 Sheet display part 22 Sheet printing part 30 Control status output part 60 Control diagram data 61 Area information table 62 Command element information table 63 Connection symbol information table

Claims (9)

A control support method by a control support device for dividing and outputting control diagram data described in a control language into a plurality of sheets,
The control support apparatus includes a division condition input unit, a region division unit, a connection symbol addition unit, a sheet output unit, and a storage unit.
The division condition input unit receives an input of a division condition for dividing the control diagram data into regions,
The region dividing unit divides the control diagram data into a plurality of sheets so as to conform to the division condition received by the division condition input unit, and position information of each command element in the control diagram data, By comparing the position information of a plurality of divided sheets, the area to which each command element belongs in the control diagram data is specified, and the correspondence information between each command element and its belonging area is stored in the storage means. Remember,
The connection symbol adding unit reads and selects two command elements connected to each other by connection lines for each command element stored in the storage means, and an area to which the command elements belong Are different from each other, add a connection symbol to each connection line connecting the command elements in the sheet of the area to which the command elements belong,
The control support method, wherein the sheet output unit outputs a sheet to which a connection symbol is added by the connection symbol addition unit. The sheet output unit further adds at least one of the specific information of the control diagram data, the specific information for each sheet, and the update history information for each sheet to the sheet to which the connection symbol is added. The control support method according to claim 1, wherein the control support method is output. The sheet output unit executes at least one of a display process for displaying the contents of a sheet on a display and a printing process for printing the contents of a sheet on a sheet via a printer. The control support method according to claim 1 or 2. The division condition input unit receives an input of an area dividing line for dividing the plane of the control diagram data into rectangular areas as a division condition,
The region dividing unit divides the plane of the control diagram data into rectangular regions by dividing the plane of the control diagram data in a vertical direction and a horizontal direction along a region dividing line. The control support method according to any one of claims 1 to 3. The division condition input unit adds a descriptive text as a division condition to each connection line connecting the command elements of the control diagram data,
The area dividing unit divides the control diagram data into areas by dividing a connection line when a predetermined keyword is included in the explanatory text. The control support method according to any one of the above. The control support device receives an input of a movement operation of a command element in the control diagram data, and when the command element is moved across an area,
The control support according to claim 1, wherein the connection symbol adding unit recalculates a connection symbol to be added for each of the sheets before and after the movement of the command element. Method. In the process of outputting a sheet, the sheet output unit adds a control parameter output from the control target device of the command element indicated by the control diagram data to a connection line connecting the command elements of the control diagram data. The control support method according to claim 1, wherein the control support method is output.   A control support program for causing the control support apparatus to execute the control support method according to any one of claims 1 to 7. A control support apparatus that outputs control diagram data described in a control language by dividing a region into a plurality of sheets,
The control support apparatus includes a division condition input unit, a region division unit, a connection symbol addition unit, a sheet output unit, and a storage unit.
The division condition input unit receives an input of a division condition for dividing the control diagram data into regions,
The region dividing unit divides the control diagram data into a plurality of sheets so as to conform to the division condition received by the division condition input unit, and position information of each command element in the control diagram data, By comparing the position information of a plurality of divided sheets, the area to which each command element belongs in the control diagram data is specified, and the correspondence information between each command element and its belonging area is stored in the storage means. Remember,
The connection symbol adding unit reads and selects two command elements connected to each other by connection lines for each command element stored in the storage means, and an area to which the command elements belong Are different from each other, add a connection symbol to each connection line connecting the command elements in the sheet of the area to which the command elements belong,
The sheet output unit outputs a sheet to which a connection symbol is added by the connection symbol addition unit.

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