JP6394516B2 - Development support program, recording medium, development support method, and development support apparatus - Google Patents

Description

  Embodiments disclosed herein relate to a development support program, a recording medium, a development support method, and a development support apparatus.

  Patent Document 1 extracts a text indicating a device or a label in a text program, and displays attached information expressing the meaning of the device or label in a comment line immediately before or after the position in the description direction. A creation support technique is disclosed.

Japanese Patent No. 5490170

  According to the above prior art, the specific meaning of the device or label itself, which is abstractly described by a combination of simple alphabets and numbers in the text program, can be confirmed individually from the corresponding attached information in the comment line. It becomes easy to do. However, when these devices and labels are described in an arithmetic expression, the above prior art cannot directly grasp the meaning of the arithmetic contents of the entire arithmetic expression from the comment line. For this reason, the user has to check the content of the operation by comparing the original operation expression with the information attached to the comment line, which causes a reduction in program development efficiency, particularly debugging efficiency.

  The present invention has been made in view of such problems, and an object thereof is to provide a development support program, a recording medium, a development support method, and a development support apparatus that improve program development efficiency, particularly debugging efficiency. To do.

In order to solve the above-described problem, according to one aspect of the present invention, there is provided a development support program to be executed by an arithmetic unit provided in a development support apparatus for a text description type program inversely converted from an execution code, the execution code Obtaining a corresponding database; displaying an arithmetic expression text described in a program list of the text description type program in a predetermined arithmetic expression display area on a display unit included in the development support apparatus; Extracting a calculation variable text expressed by an address of a storage area from the calculation formula text; obtaining a comment variable text corresponding to the calculation variable text with reference to the database; and the calculation in the calculation formula text It said to replace the variable text in the comment variable text comments variable text and operators Te Generating a formula corresponding comment text in a text string containing the list, development support program for executing, and displaying the equation corresponding comment text in the comment display area corresponding to the arithmetic expression display region is applied .

  According to another aspect of the present invention, a recording medium that records a development support program and is readable by the development support apparatus is applied.

Further, according to another aspect of the present invention, there is provided a development support method for a text description type program inversely converted from an execution code, including obtaining a database corresponding to the execution code ; Display the arithmetic expression text described in the program list in a predetermined arithmetic expression display area, extract the arithmetic variable text expressed by the address of the storage area from the arithmetic expression text, and refer to the database. Obtaining a comment variable text corresponding to the calculation variable text, replacing the calculation variable text in the calculation formula text with the comment variable text, and a text string including the comment variable text and the operator text. Generating comment text corresponding to an expression and a comment corresponding to the arithmetic expression display area. Development method of performing and displaying the equation corresponding comment text preparative display area, a is applied.

Further, according to another aspect of the present invention, there is provided a development support apparatus for a text description type program inversely converted from an execution code, a database acquisition unit for acquiring a database corresponding to the execution code, and the text description type An arithmetic expression description display unit for displaying the arithmetic expression text described in the program list of the program in a predetermined arithmetic expression display area on the display unit included in the development support apparatus, and an address of the storage area from the arithmetic expression text a calculation variable extractor for extracting operational variable text notation, and comments variable obtaining section by referring to the database to retrieve the comments variable text corresponding to the calculation variable text, the calculation variables text of the arithmetic expression in the text including the comment variable text and operators text is replaced with the comment variable text And wherein corresponding comments generating unit for generating a formula corresponding comment text in text column, a formula corresponding comment display unit that displays the equation corresponding comment text in the comment display area corresponding to the arithmetic expression display region, the development support device having Applied.

  According to the present invention, program development efficiency, particularly debugging efficiency, is improved.

It is a block diagram showing the structure of the development support system using the development support program of embodiment. It is a block diagram which shows the schematic software structure of the whole development assistance program run on general purpose PC. It is an example of the ladder diagram displayed on the display by the editor. It is an example of the program list displayed on the display by the editor. It is the figure which showed typically the address text corresponding | compatible table which registers an address text corresponding to a comment variable text. It is the figure which showed typically the variable name text corresponding table which registers variable name text corresponding to comment variable text. It is a figure explaining the production | generation method of a comment text corresponding to a formula. It is a figure explaining the method of describing the produced | generated expression corresponding comment text on a program list. It is a flowchart which shows the control procedure of the list display process which CPU of general purpose PC performs on an editor. It is a flowchart which shows the detailed control procedure of the expression corresponding comment text production | generation process of step S100 in FIG. It is an example in which the number of characters displayed in the comment variable text is arbitrarily set, and is an example of a program list displayed on the display. It is an example in which only comment variable text is displayed in a special manner, and is an example of a program list displayed on a display.

  Hereinafter, an embodiment will be described with reference to the drawings.

<Schematic configuration of development support system>
FIG. 1 shows a block diagram of a development support system using the development support program of this embodiment. In FIG. 1, a development support system 100 includes a general-purpose personal computer 1 (hereinafter referred to as a general-purpose PC 1) that executes a development support program, a programmable logic controller 2 (referred to as PLC 2 in the drawing and hereinafter), and a servo amplifier 3. And a motor 4.

  The general-purpose PC 1 (development support device) is a general personal computer including a non-volatile storage device including a CPU, ROM, RAM, HDD, etc., a communication control unit, an operation unit 1a, and a display 1b (display unit). It is a computer. The CPU (arithmetic unit) controls editing, compiling, and transmission / reception of a control program that can be executed by the PLC 2 described later, based on the development support program and data stored in the ROM, RAM, and nonvolatile storage device. The software configuration relating to the development support for the control program will be described in detail later in the description of FIG.

  The PLC 2 is a so-called host control device including a non-volatile storage device including a CPU, ROM, RAM, flash memory, and the like (not shown), an operation unit, a display unit, and a communication control unit. The PLC 2 receives, stores and executes the control program developed in the general-purpose PC 1, thereby transmitting a predetermined command to a servo amplifier 3 (described later) in a predetermined procedure, thereby controlling the motor 4 in sequence.

  The servo amplifier 3 has a function of supplying power to the motor 4 based on the command received from the PLC 2 and controlling its drive. In addition, although the rotation type motor 4 is shown in the figure, you may apply a direct acting type motor to others.

<Software outline configuration of development support program>
FIG. 2 is a block diagram showing a schematic software configuration of the entire development support program executed on the general-purpose PC 1. In FIG. 2, the development support program 11 includes function programs of an editor 12, a storage unit 13, a compiler 14, a decompiler 15, a transmission / reception unit 16, an input processing unit 17, a display processing unit 18, a database 19, and a manager 20. It is integrated.

  The editor 12 has a function of displaying and inputting and editing a program (program list, ladder diagram) described in a higher language format. The program is displayed by display on the display 1b of the general-purpose PC 1 via the display processing unit 18. The input editing of the program is performed by input from the user via the operation unit 1a of the general-purpose PC 1 and the input processing unit 17. The upper language format of the program handled by the editor 12 includes a so-called graphic description type program that graphically describes a predetermined control procedure and a so-called text description type program that describes the predetermined control procedure in text (character string). Two types are handled in combination. In the example of the present embodiment, a ladder program described in a ladder diagram (see FIG. 3 to be described later) is handled as a graphic description type program. In a text description type program, a plurality of texts for each instruction are included in a program list (see FIG. 4 to be described later). Write across lines. The editor 12 is a functional part related to input editing of a text description type program, in particular, an arithmetic expression description display part 121, an arithmetic variable extraction part 122, a comment variable acquisition part 123, an expression correspondence comment generation part 124, an expression correspondence shown in the figure. A comment display unit 125 is provided. The functional units related to input editing of these text description type programs will be described in detail later.

  The storage unit 13 has a function of accessing the RAM and the non-volatile storage unit of the general-purpose PC 1 and storing the above-described program list, ladder diagram 21, or execution code that can be directly executed by the CPU of the PLC 2.

  The compiler 14 has a function of converting the program list or ladder diagram 21 stored in the storage unit 13 into an execution code 22.

  The decompiler 15 has a function of inversely converting the execution code 22 stored in the storage unit 13 into a program list or a ladder diagram 21.

  The transmission / reception unit 16 has a function of transmitting / receiving the execution code 22 to / from the PLC 2.

  The input processing unit 17 has a function of receiving an input from the user via the operation unit 1a of the general-purpose PC 1.

  The display processing unit 18 has a function of displaying various types of information on the display 1 b of the general-purpose PC 1.

  The manager 20 has a function of executing the function programs of the development support program 11 in an integrated manner.

  In the development support program 11 configured as described above, a user creates a control program in the format of a program list and ladder diagram 21 by input editing using the editor 12, and the control program is converted into an execution code 22 by the compiler 14. After conversion, the data is transmitted to the PLC 2 via the transmission / reception unit 16 to be stored and executed. Further, the development support program 11 can reversely convert the execution code 22 received from the PLC 2 via the transmission / reception unit 16 into the format of the program list and the ladder diagram 21 by the decompiler 15 and can correct the code by the editor 12.

<Ladder diagram and program list>
FIG. 3 shows an example of a ladder diagram displayed on the display 1 b by the editor 12. In the present embodiment, various information on the display 1b is displayed in a so-called GUI (Graphical User Interface) mode, and the cursor is moved by a pointing device (not shown) provided in the operation unit 1a of the general-purpose PC 1. In C, it is possible to specify a target location for an input operation (the same applies to the following screen display diagrams).

  In FIG. 3, two parallel rails 31 that are regarded as DC buses are described at the left and right ends of the ladder diagram, and a plurality of horizontal straight rungs 32 that are regarded as relay lines are described between the rails 31. ing. An activation condition 33 as a contact (switch) is described on the left side of each rung 32, and an output unit 34 as an actuator coil is described on the right side of the rungs 32. When the start condition 33 of each rung 32 is satisfied, each command is output from the output unit 34 of the corresponding rung 32. Further, by inputting the output of each output unit 34 to each activation condition 33, the rungs 32 can be operated in cooperation with each other. As one of the output units 34 in such a ladder diagram, there is a case where a numerical operation unit 35 (see “EXPRESSION” window portion in the figure) for performing numerical operation processing is particularly incorporated. It is described in the form of a program list by type program.

  FIG. 4 shows an example of a program list displayed on the display 1b by the editor 12. In FIG. 4, the arithmetic text and comment text are mixed and described (displayed) over a plurality of lines in the program list.

  The arithmetic expression text is text that is described as an arithmetic expression that is a combination of an arithmetic variable text, an operator text, and a function text. The calculation variable text is a text representing a variable to be stored by assigning a numerical value corresponding to a predetermined storage area on the RAM, and an address text such as “GF100100”, “GF00200” in the example illustrated by the variable designation format, , “Sr”, “Dataasu”, “DivP” and the like, are classified into two types of variable name text (these address text and variable name text will be described in detail later). The operator text is text representing an arithmetic operator such as “=”, “+”, “−”, “* (×)”, “/ (÷)”. The function text is a text representing a system function such as “SQRT (argument) (; square root (argument))” in the illustrated example.

  The comment text is text in which a character string having a predetermined content is described as a comment. The comment text is basically a "//" header added at the beginning and is described in free content after that. The comment text explains the meaning of the entire adjacent arithmetic expression text. There are things that are described. In the example of the present embodiment, the comment text having the content corresponding to the arithmetic expression text (such as “BC square” = “spherical curvature” * “spherical curvature” in the illustrated example) is used as the expression corresponding comment text. It is called and displayed in the line immediately before the arithmetic expression text only on the display screen of the program list on the display 1b without being described in the program list. That is, the expression-corresponding comment text display area 41 (comment display area) corresponding to the contents of the arithmetic expression text is arranged in the line immediately before the display area 42 (arithmetic expression display area) of the arithmetic expression text. In this embodiment, the header “//” is not added to the beginning of the expression-corresponding comment text (the arithmetic expression text and the expression-corresponding comment text will also be described later).

  Basically, the formula text and comment text are written (or displayed) one line per line with a new line for each sentence. Individual text is added at the end of each formula text and comment text. By describing “; (semi-colon)” indicating a delimiter, a so-called multi-statement in which a plurality of arithmetic expression texts and comment texts are written in one line can be provided.

<Features of this embodiment>
In the general-purpose PC 1, each text is described in the program list by a character input from the user via the operation unit 1a. At this time, the calculation variable text (the address text and variable name text in this example) is described and displayed as simple and abstract text combining numbers and alphabets with a small number of characters. The meaning is difficult to understand. Therefore, on the display screen of the program list on the display 1b, a comment display area 41 is provided adjacent to the arithmetic expression display area 42 for displaying the arithmetic expression text as described above, and the arithmetic expression text is provided in the comment display area 41. In general, the comment text corresponding to the expression corresponding to the contents of is displayed. The comment text corresponding to the expression is a comment variable text (for example, “BC square”) in which the meaning of the calculation variable text (for example, “GF100100”) in the original expression text is described in an easy-to-understand manner using kanji characters. ).

  However, in the program development so far, when a new arithmetic expression text is input, it is necessary to manually describe and display all the corresponding expression corresponding comment texts. Also, even if some calculation variable texts in the existing calculation formula text are modified or changed for the purpose of debugging or adjustment, the corresponding comment variable text in the corresponding expression corresponding comment text is also separately available. It was necessary to correct and change manually. In these input operations, it is necessary to input the comment variable text corresponding to each calculation variable text while confirming it, which is a very complicated operation.

  On the other hand, in the present embodiment, in the editor 12 of the development support program 11 executed on the general-purpose PC 1, the arithmetic variable text is extracted from the arithmetic expression text input by the arithmetic variable extraction unit 122, and the comment variable acquisition unit 123 obtains the comment variable text corresponding to the calculation variable text by referring to the database 19, and the above-mentioned formula corresponding comment generation unit 124 replaces the calculation variable text in the calculation formula text with the comment variable text, The expression corresponding comment display unit 125 displays the expression corresponding comment text in the comment display area 41 corresponding to the arithmetic expression display area 42.

  Thereby, the comment text corresponding to the expression corresponding to the arithmetic expression text newly input or corrected is automatically generated and corrected, and displayed on the program list display screen. As a result, the user can accurately display the comment text corresponding to the expression expressing the same calculation content more easily by simply inputting the calculation expression text without depending on the manual input.

<About address text and variable name text>
As described above, there are two types of calculation variable texts, which are names of variables to which numerical values are assigned, address text and variable name text. The address text is a text in which an address (address) in which a numerical value is stored in a RAM (not shown) included in the PLC 2 is directly written as a variable name. The variable name text is text in which an abstract character string arbitrarily set by the user is expressed as a variable name. In the present embodiment, the address text and variable name text used in the program list are registered in advance in the database 19 in association with the comment variable text in which the meaning is clearly described by the user using kanji characters or the like. Keep it.

  FIG. 5 schematically shows an address text correspondence table for registering each address text used in the program list of FIG. 4 in correspondence with the comment variable text. In FIG. 5, each address text is described as it is as the address on the RAM for storing the numerical value of the variable as described above. For example, the address text “GF100100” is the name of a variable that stores a numerical value at the address “GF00100” on the RAM. By using such an address text, the user can arbitrarily specify a storage address (storage area) on the RAM for storing numerical values and check it on the program list. Since the address text itself is merely a list of alphabets and numbers, it is difficult to grasp the meaning of the numerical value assigned to it even if it is described in the arithmetic expression as it is. Therefore, corresponding to each address text, a comment variable text in which the meaning of the numerical value is described in an easy-to-understand manner using kanji-like characters is separately registered by the user. For example, a comment variable text of “BC square” indicating the meaning of a numerical value to be assigned to the variable of the address text is registered corresponding to the address text of “GF100100”.

  FIG. 6 schematically shows a variable name text correspondence table in which each variable name text used in the program list of FIG. 4 is registered in correspondence with the comment variable text and the storage address. In FIG. 6, each variable name text is described by an abstract character string variable name that is simply a combination of numbers and alphabets arbitrarily selected by the user. A numerical value assigned to the variable indicated by the variable name text is also stored in a storage address (storage area) arbitrarily designated by the user on the RAM. In the variable name text correspondence table, the above storage address is registered corresponding to each variable name text, together with the comment variable text describing the meaning of the numerical value to be substituted in an easy-to-understand manner. For example, in correspondence with the variable name text of “sr”, the comment variable text of “spherical curvature” indicating the meaning of the numerical value assigned to the variable of the variable name text, and the storage address “GF01010” on the RAM for storing the numerical value. Is separately registered by the user. By using such variable name text, the user can describe the variable with a simplified and abstracted character string.

  These address text correspondence table and variable name text correspondence table together correspond to the database 19 shown in FIG.

<Generation and display of comment text for expressions>
FIG. 7 illustrates a method for generating a comment text corresponding to an expression in the present embodiment. In FIG. 7, the process of generating the comment text corresponding to the expression “BC square” = “spherical curvature” * “spherical curvature” corresponding to the arithmetic expression text “GF00100 = sr * sr” in FIG. An example is given.

  First, the target arithmetic expression text “GF100100 = sr * sr” is copied from the program list, and the arithmetic variable texts “GF00100”, “sr”, and “sr” included therein are extracted. This extraction process is performed by the operation variable extraction unit 122 of the editor 12 shown in FIG. 2 extracting the remaining character string by removing the operator text and the function text, which are the existing text, from the arithmetic expression text.

  Next, the comment variable texts “BC square”, “spherical curvature”, and “spherical curvature” respectively corresponding to the extracted operation variable texts are acquired. In this acquisition process, the comment variable acquisition unit 123 of the editor 12 refers to the database 19 (the address text correspondence table in FIG. 5 and the variable name text correspondence table in FIG. 6), and comments corresponding to each calculation variable text. This is done by searching and obtaining variable text.

  Next, by replacing the comment variable text obtained corresponding to each calculation variable text in the copied original calculation formula text, the expression corresponding comment text “'BC square” = “spherical curvature” * Generate 'spherical curvature'. In this generation processing, the expression corresponding comment generation unit 124 of the editor 12 replaces the operation variable text in the operation expression text copied from the program list with the comment variable text, and further, quotes are added before and after each comment variable text. This is done by adding marks "'" and "'".

  FIG. 8 illustrates a method for displaying the generated expression-corresponding comment text on the program list display screen. First, as shown in the upper part of FIG. 8, the arithmetic expression description display unit 121 of the editor 12 displays an arithmetic expression text (“GF00100 = sr *” in the illustrated example) in the program list based on a user input via the input processing unit 17. sr "). Then, a list display process to be described later by the editor 12 is performed as shown in the lower part of FIG. 8. The comment text corresponding to each formula (in the example shown, “'BC square' = 'spherical curvature' * 'spherical surface). Curvature '") is automatically generated and displayed in real time along with each arithmetic expression text on the display screen of the program list on the display 1b via the display processing unit 18. In this display process, the expression corresponding comment display unit 125 of the editor 12 newly adds a comment display area 41 between the line of the operation expression text (operation expression display area 42) and the immediately preceding line in the program list display screen. This is done by displaying the comment text corresponding to the generated expression.

  Although not shown in particular, if the content of the original arithmetic expression text is changed in a state where the corresponding expression-corresponding comment text has already been generated and displayed, a new corresponding expression-corresponding comment is obtained by the above list display processing. Text is automatically generated and redisplayed in real time in the same comment display area 41. In the present embodiment, the comment display area 41 is arranged between the line of the arithmetic expression text and the line immediately before, but the present invention is not limited to this. For example, the comment display area 41 may be inserted in a multi-statement between the line of the arithmetic expression text and the line immediately after the arithmetic expression text or in the same line as the arithmetic expression text (not shown).

<Control flow>
The control procedure of the list display processing executed by the CPU (arithmetic unit) of the general-purpose PC 1 on the editor 12 in order to realize the functions as described above will be described in order with reference to FIGS. First, in FIG. 9, the processing shown in this flow is performed in the P portion of the program list of N rows in the window portion (“EXPRESSION” window portion in FIG. 4) capable of displaying M lines on the display 1b. This is a process of displaying the contents of the description as a list while inserting and arranging the comment text corresponding to the expression, and is sequentially executed every predetermined minute time during the operation of the editor 12.

  First, in step S5, the CPU of the general-purpose PC 1 counts and acquires the total number N of lines in the program list.

  Next, the process proceeds to step S10, and the CPU of the general-purpose PC 1 acquires the number M of displayable lines in the window portion.

  In step S15, the CPU of the general-purpose PC 1 acquires the display start line P of the current program list from the scroll state in the window portion.

  Next, the process proceeds to step S20, and the CPU of the general-purpose PC 1 assigns a value of 1 to the display row counter LC that is a variable.

  Next, the process proceeds to step S25, and the CPU of the general-purpose PC 1 determines whether or not an arithmetic text description is included in the P-th line on the program list. If the description of the arithmetic expression text is not included in the Pth line, the determination is not satisfied, and the routine goes to Step S45.

  On the other hand, if the description of the arithmetic expression text is included in the Pth line, the determination is satisfied, and the routine goes to Step S100.

  In step S100, the CPU of the general-purpose PC 1 executes an expression corresponding comment text generation process for generating an expression corresponding comment text corresponding to the arithmetic expression text determined in step S25 (see FIG. 10 described later).

  In step S30, the CPU of the general-purpose PC 1 displays the expression corresponding comment text generated in step S100 on the LC line in the window portion. Note that the display processing in step S30 corresponds to the expression correspondence comment display section 125 shown in FIG. 2 and the expression correspondence comment display section described in each claim.

  Next, the process proceeds to step S35, and the CPU of the general-purpose PC 1 determines whether or not the value of the display line counter LC at that time coincides with the value of the number M of displayable lines in the window portion. In other words, it is determined whether the last line in the window has been displayed. If the LC value matches the M value, the determination is satisfied and the flow ends.

  On the other hand, if the LC value does not match the M value, the determination is not satisfied, and the routine goes to Step S40.

  In step S40, the CPU of the general-purpose PC 1 adds 1 to the value of the display row counter LC.

  In step S45, the CPU of the general-purpose PC 1 displays the Pth line on the program list on the LC line in the window portion.

  Next, the process proceeds to step S50, and the CPU of the general-purpose PC 1 determines whether or not the value of the display line counter LC at that time coincides with the value of the number M of displayable lines in the window portion. If the LC value matches the M value, the determination is satisfied and the flow ends.

  On the other hand, if the LC value does not match the M value, the determination is not satisfied, and the routine goes to Step S55.

  In step S55, the CPU of the general-purpose PC 1 determines whether or not the value of P at that time matches the value of the total number of rows N in the program list. In other words, it is determined whether or not the program list is displayed up to the last line in the window portion. If the value of P matches the value of N, the determination is satisfied and the flow ends.

  On the other hand, if the value of P does not match the value of N, the determination is not satisfied, and the routine goes to Step S60.

  In step S60, the CPU of the general-purpose PC 1 adds 1 to the value of P and the value of LC, respectively. And it returns to said step S25 and repeats the same procedure.

  FIG. 10 shows a detailed control procedure of the expression corresponding text comment generation unit in step S100 in FIG.

  First, in step S105, the CPU of the general-purpose PC 1 copies and obtains the target arithmetic expression text from the P-th line of the program list.

  Next, the process proceeds to step S110, and the CPU of the general-purpose PC 1 extracts the calculation variable text from the calculation formula text acquired in step S105. The extraction process in step S110 corresponds to the calculation variable extraction unit 122 shown in FIG. 2 and the calculation variable extraction unit described in each claim.

  In step S115, the CPU of the general-purpose PC 1 refers to the database 19 (address text correspondence table and variable name text correspondence table), and obtains comment variable text corresponding to each operation variable text extracted in step S110. To do. The acquisition process in step S115 corresponds to the comment variable acquisition unit 123 shown in FIG. 2 and the comment variable acquisition unit described in each claim.

  In step S120, the CPU of the general-purpose PC 1 replaces each calculation variable text in the original calculation formula text copied in step S105 with the corresponding comment variable text acquired in step S115. Generate text. At this time, each comment variable text is processed so as to be enclosed by quotation marks “′” and “’ ”. Note that the replacement processing in step S120 corresponds to the expression corresponding comment generating unit 124 shown in FIG. 2 and the expression corresponding comment generating unit described in each claim. Then, this flow ends.

<Effect of this embodiment>
As described above, according to the development support program 11 of the present embodiment, the operation variable text is extracted from the operation expression text by the operation variable extraction unit 122 and the database 19 is referred to by the comment variable acquisition unit 123. Obtaining the comment variable text corresponding to the calculation variable text, generating the expression corresponding comment text by replacing the calculation variable text in the calculation expression text with the comment variable text by the expression corresponding comment generating unit 124, The corresponding comment display unit 125 displays the expression corresponding comment text in the comment display area 41 corresponding to the arithmetic expression display area 42.

  Thereby, the comment text corresponding to the expression corresponding to the arithmetic expression text newly input or corrected is automatically generated and corrected, and displayed in the comment display area 41 on the program list display screen. In particular, the comment text corresponding to this expression only replaces each calculation variable text in the original calculation expression text with the corresponding comment variable text, and the other operator text and function text maintain the same positional relationship. Since it is described as it is, the meaning of the operation contents of the entire arithmetic expression is expressed equivalent to the original arithmetic expression text. Thereby, the user can display the comment text corresponding to the expression expressing the same calculation contents more easily and accurately without being manually input by simply inputting the expression text. As a result, program development efficiency, particularly debugging efficiency, is improved.

  In this embodiment, the editor 12 constantly monitors the description operation of the arithmetic expression text in the program list by the user in real time, and when it is determined that the description input is performed in units of the arithmetic expression text or the arithmetic variable text. Although the corresponding comment text was generated and displayed immediately, it is not limited to this. For example, although not shown in particular, the user may be able to arbitrarily switch between display and non-display of the comment text corresponding to the expression, or may be temporarily displayed only when the user performs a specific operation. Good. In this embodiment, the comment text corresponding to the expression is only displayed on the display screen of the program list on the display 1b. However, the comment text may be directly inserted into the program list and described.

  In this embodiment, in particular, the calculation variable text is an address text expressed by a storage address of a storage area arbitrarily designated by the user. Thus, the numerical contents of the variable corresponding to the address text can be stored in the storage address of the storage area arbitrarily designated by the user, and the storage address can be confirmed on the program list.

  In this embodiment, in particular, the calculation variable text is a variable name text expressed by a variable name arbitrarily set by the user. As a result, the user can describe the variable with a simplified and abstracted character string.

  In the present embodiment, a text comment is automatically generated for a program list newly created by a user or an existing one is modified, and this is inserted and displayed. However, the present invention is not limited to this. For example, the present embodiment can be applied to a program list in which an execution code once converted by the compiler 14 is reversely converted again by the reverse compiler 15. In this case, by obtaining and referring to the database 19 (address text correspondence table and variable name text correspondence table) corresponding to the editor 12 as well, new expression correspondence comment texts corresponding to the description contents of the respective operation expression texts are newly created. Can be generated and displayed on the program list display screen.

  In this embodiment, in particular, the program list of the text description type program is applied to the numerical operation processing in the ladder diagram of the graphic description type program. In this case, the processing performed by the text description type program is specialized in numerical computation, and is a description that makes heavy use of arithmetic expression text. Therefore, the application of this embodiment is particularly useful.

<Modification>
The disclosed embodiments are not limited to the above, and various modifications can be made without departing from the spirit and technical idea thereof. Hereinafter, such modifications will be described.

(1) In the case where the number of display characters of the comment variable text is arbitrarily set In the above embodiment, the comment corresponding text in the state in which the comment variable text registered in the database 19 is directly replaced when the comment corresponding text is displayed. Although it was displayed on the program list display screen, it is not limited to this. For example, in consideration of the case where the comment variable text is registered as a long sentence, the user may arbitrarily set the number of display characters of the comment variable text in the program list display screen.

  For example, if a long comment variable text such as “BC square calculated by multiplying two spherical curvatures” is registered in the address text correspondence table of FIG. Replacing comment variable text makes the entire comment text corresponding to an expression redundant and difficult to see. On the other hand, in this modification, by setting the number of display characters of the comment variable text to, for example, the first five characters by the option setting of the editor 12, the comment variable text is changed to “'two” as shown in the upper part of FIG. "Spherical surface ~ '" can be displayed only. Note that “˜” at the end is a footer indicating that only a part of the beginning of the registered comment variable text is displayed. Then, when the user places the cursor C on the comment variable text display area 41 partially displayed on the program list display screen, the comment variable text is displayed in a so-called balloon help BH mode as shown in the lower part of FIG. Displays the total number of characters.

  As described above, according to the development support program 11 of this modification, the number of display characters of the comment variable text in the comment display area 41 can be arbitrarily set. As a result, even when each comment variable text is registered with a specific and detailed long description, the entire expression-corresponding comment text can be simplified and displayed easily.

  It is only necessary that the display screen of the program list on the display 1b is finally easy to see. For this reason, in the program list, the comment text corresponding to the expression may be described using the original comment variable text, and the number of display characters may be limited on the display screen of the program list.

  In the present modification, particularly, when the cursor C is overlaid on the comment variable text display area in the comment display area 41 on the GUI, the comment variable text is displayed with the total number of characters by the balloon help BH. Thereby, it is possible to easily confirm the accurate description of the comment variable text displayed in a simplified manner.

(2) When only the comment variable text is displayed in a special manner In the above embodiment, the comment variable text, the operator text, and the function text are all displayed in the same manner in the comment text corresponding to the expression. Not limited to this. For example, as shown in FIG. 12 corresponding to FIG. 4, only the comment variable text in the comment text corresponding to each expression may be displayed in a special mode different from other operator text and function text. In the illustrated example, only the comment variable text is displayed in bold and italic font style. By performing such display, it becomes clear whether the comment variable text and the operator text (function text) in the comment text corresponding to the expression are distinct, and the configuration of the entire comment text can be easily grasped. Note that, as a special display mode, in addition to the font style of the illustrated example, it may be different depending on the character color or size (point).

  Also in this modified example, it is only necessary to finally display the program list on the display 1b. For this reason, in the program list, the comment text corresponding to the expression may be described in the comment variable text in the normal mode, and only the comment variable text may be displayed in a special mode in the display on the display screen of the program list. .

  In addition to those already described above, the methods according to the above-described embodiments and modifications may be used in appropriate combination.

  In addition, although not illustrated one by one, the above-mentioned embodiment and each modification are implemented with various modifications within a range not departing from the gist thereof.

1 General-purpose personal computer (development support device)
1a Operation unit 1b Display (display unit)


DESCRIPTION OF SYMBOLS 2 Programmable logic controller 3 Servo amplifier 4 Motor 11 Development support program 12 Editor 13 Memory | storage part 14 Compiler 15 Decompiler 16 Transmission / reception part 17 Input processing part 18 Display processing part 19 Database 20 Manager 21 Program list and ladder diagram 22 Execution code 41 Comment display Area 42 Calculation expression display area 121 Calculation expression description display section 122 Calculation variable extraction section 123 Comment variable acquisition section 124 Comment generation section 125 Expression corresponding comment display section 100 Development support system C Cursor BH Balloon help

Claims (8)

A development support program to be executed by an arithmetic unit provided in a development support device for a text description type program inversely converted from an execution code,
Obtaining a database corresponding to the executable code;
Displaying the arithmetic expression text described in the program list of the text description type program in a predetermined arithmetic expression display area on a display unit included in the development support device;
Extracting a calculation variable text expressed by a storage area address from the calculation formula text;
Obtaining a comment variable text corresponding to the operation variable text with reference to the database;
Replacing the operation variable text in the operation expression text with the comment variable text to generate an expression corresponding comment text in a text string including the comment variable text and operator text ;
Displaying the expression corresponding comment text in a comment display area corresponding to the arithmetic expression display area;
Development support program characterized by executing Wherein the comment display area Comment variable display characters of text, according to claim 1 development support program, wherein can be arbitrarily set. 3. The development support program according to claim 2 , wherein when the cursor is placed on a display area of the comment variable text in the comment display area on the GUI, the comment variable text is displayed with the total number of characters by balloon help. The development support program according to any one of claims 1 to 3 , wherein the comment variable text in the expression-corresponding comment text is displayed in a different form from the operator text. The development support program according to any one of claims 1 to 4 , wherein the text description type program is applied to numerical operation processing in a graphic description type program. Development support program was recorded, the development support device readable recording medium according to any one of claims 1 to 5. A method for supporting the development of a text description type program that has been inversely transformed from an executable code,
Obtaining a database corresponding to the executable code;
Displaying the arithmetic expression text described in the program list of the text description type program in a predetermined arithmetic expression display area;
Extracting a calculation variable text expressed by a storage area address from the calculation formula text;
Obtaining a comment variable text corresponding to the operation variable text with reference to the database;
Replacing the operation variable text in the operation expression text with the comment variable text to generate an expression corresponding comment text in a text string including the comment variable text and operator text ;
Displaying the expression corresponding comment text in a comment display area corresponding to the arithmetic expression display area;
A development support method characterized by executing A development support device for a text description type program that is inversely transformed from an executable code,
A database acquisition unit for acquiring a database corresponding to the execution code;
An arithmetic expression description display unit for displaying the arithmetic expression text described in the program list of the text description type program in a predetermined arithmetic expression display area on the display unit included in the development support apparatus;
A calculation variable extraction unit that extracts a calculation variable text represented by a storage area address from the calculation formula text;
A comment variable obtaining unit that obtains a comment variable text corresponding to the operation variable text with reference to the database;
An expression corresponding comment generating unit that replaces the operation variable text in the operation expression text with the comment variable text and generates an expression corresponding comment text in a text string including the comment variable text and the operator text ;
An expression corresponding comment display section for displaying the expression corresponding comment text in a comment display area corresponding to the arithmetic expression display area;
A development support apparatus characterized by comprising:

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