JP2005310056A - Program execution control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a program execution control system dispensing with conversion into an executable format every time a program is edited. <P>SOLUTION: The program execution control system is provided with a program creating means for creating a program by a function block format, and a program executing means for executing the program generated by the program creating means. An execution flag for determining whether the function block is executed or not is provided on the function block so that operation of on/off of the execution flag during halt or execution of the program described in the function block is made possible, and only the function block with the effective execution flag is executed by the program executing means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a program execution control method when editing a program of a control device, an inspection device, a measurement device, etc., and more particularly to a program execution control method capable of switching the contents of a program to be executed at the time of execution.

In the program development process, when debugging a program, in order to confirm a partial operation of the developed program, a part unrelated to the confirmation of the operation may be commented out and executed. In addition, a program related to the developed program that is not executed but is to be referred to may be commented out and described in the same program.
When commenting out, a symbol indicating commenting out is added to the program. Attempts have been made to apply such a comment-out function to graphical programming that handles graphic information such as flowcharts and block diagrams (see Patent Document 1, for example).

  Japanese Patent Application Laid-Open No. 2004-228688 discloses a technique for specifying an area to be treated as a comment-out in a program editing area so as not to code it, for example, in order to realize a function for writing an annotation in a drawing. That is, an area to be treated as a comment is specified in the program area, and a predetermined program object is enclosed by this area, and it is determined whether each object is treated as a program or a comment.

Japanese Patent Laid-Open No. 2-14370 (Patent No. 2851852)

However, in the programming method in which the program is converted into an execution code when the program is executed, the execution code is re-executed before the changed program is executed in order to reflect changes to the program such as comment out at the time of execution. It was necessary to convert to Each time the comment position is converted, the program is converted into an execution format, the converted execution format is downloaded to the program execution means, and the start of execution is instructed, resulting in poor program development efficiency. Especially in a system that takes a long time to change or download the program execution code, there is a problem that the development efficiency of the program is reduced because it is necessary to perform such processing every time the program is changed. .
Also, depending on the program, if a part of the program is executed / not executed while the program is executed online, the program may not be grammatically correct and execution may stop.

Furthermore, if the execution flag is set in the program, there will be a program to be executed because it is set valid, and an invalid program because it is not set, and any part of the program will actually be executed. There is also a problem that it is difficult to determine whether the program is executed and the readability of the program is lowered.
A first object of the present invention is to provide a program execution control system that does not need to be converted into an execution format each time a program is edited.
A second object of the present invention is to provide a program execution control system having program confirmation means for confirming whether a program is a grammatically correct program and detecting an illegal part in the program. .
A third object of the present invention is to provide a program execution control system with high readability by reducing the description for conditional branches in the program.

  The program execution control system of the present invention comprises a program creation means for creating a program in a function block format, and a program execution means for executing the program created by the program creation means, and the function block is assigned to the function block. An execution flag that determines whether or not to execute is provided, and it is possible to operate ON / OFF of the execution flag while the program described in the function block is stopped or executed, and the execution flag is valid Only the block is executed by the program execution means.

Also, the program execution control system of the present invention checks whether the program is a grammatically correct program as a result of operating the execution flag of the function block, and if it becomes an illegal program, it becomes illegal in the program. Program confirmation means for detecting the part is provided.
Further, the program execution control system of the present invention is provided with valid function block detection means for detecting a function block whose execution flag is valid, and only the function block which is set to be effective and performs processing at the time of execution is used as the program display means. It is intended to be displayed.

According to the present invention, an execution flag that specifies whether or not to execute the function block is provided in the function block, and the execution flag can be operated even after the program created in the function block is converted into the execution format. Even if changes are made to the program, such as commenting out a part of the program, the program can be continuously executed without switching the program to the execution format again simply by switching the execution flag. Therefore, the debugging efficiency of the program can be improved.
Also, check whether the program after the execution flag operation is a grammatically correct program, and if it is not grammatically correct, indicate to the user which part is incorrect, You can be prompted to enter your settings.
Furthermore, it is possible to display only the programs for which the execution flag is valid among the programs, or to display the display colors of the valid program and the invalid program separately, thereby ensuring the readability of the program. it can.

Embodiment 1.
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing a system configuration used in the program execution control system of the present invention. This system includes a CPU (central processing unit) 100, a ROM (read only memory) 101, a RAM (random access memory) 102, a display device 103, and an I / O (input / output device) 105 as hardware resources. And a D / A (digital-to-analog converter) 106 and an A / D (analog-to-digital converter) 107.
These are connected via a bus, but it is not necessary to have all of them, and if analog inputs are not handled, the A / D 107 may be omitted, and if analog outputs are not handled, the D / A 106 is It is not necessary. In addition, when there is no need to display on the screen, the display device 103 can be omitted.
For example, the ROM 101 stores an operating system and a program for controlling the operation of the system, and the RAM 102 stores a program and data created by a user. The CPU 100 executes various functions by a program that controls the operation of the system stored in the ROM 101.

  FIG. 2 is a functional configuration diagram showing the operation of the system according to the first embodiment of the present invention, which is executed by various processes of the CPU 100, ROM 101, RAM 102, display device 103, and input device 104. For example, the CPU 100 functions as a display unit 207 together with the display device 103, functions as an operation unit 206 together with the input device 104, and functions as a unit 202 that executes a user-created program such as a function block execution unit together with the ROM 101 and the RAM 102. The I / O 105 and the A / D 107 function as the input unit 204, and the I / O 105 and the D / A 106 function as the output unit 205. The display device 103 is composed of an LCD, for example, and can display the execution status of the user program. The input device 104 is composed of, for example, a keyboard or a touch panel attached to an LCD, and can switch instructions and processes for program execution.

Next, various functions executed by the CPU 100 will be described with reference to FIG.
The program creation means 200 is a means for creating a program for realizing a desired operation by the user. This means may exist on the same hardware as the program execution means 202 or may exist on other hardware. If it exists on other hardware, the program created there is transferred to the same hardware as the program execution means 202 using the communication means. In the program creation means 200, the user creates a program in a program language such as a function block. However, since the program execution means 202 cannot be executed as it is, the program language is converted into a format that can be executed by the program execution means 202, and Once stored in the program holding means 201.

  The program holding unit 201 is a unit that holds the program created by the program creating unit 200. The program execution unit 202 is a unit that reads and executes a user program created by the program creation unit 200 and held in the program holding unit 201. The program execution unit 202 takes data from the data holding unit 203 based on an operation instruction described in the program, processes the data, and outputs the data to the data holding unit 203 again. The program execution unit 202 receives a user instruction from the operation unit 206 and performs a corresponding process, and displays the program execution status on the display unit 207. When holding the execution result, the execution result is output to the execution result holding unit 208.

The input unit 204 and the output unit 205 operate periodically or in response to an instruction from the program execution unit 202, and input / output data stored in the data holding unit 203 to / from an external device.
FIG. 3 shows an example of a function block diagram (hereinafter referred to as FBD) used when a user creates a program. The FBD is a program described by function blocks (hereinafter referred to as FB). In this figure, when the processing of FB1 (31) is completed, the processing result of FB1 (31) is input to FB2 (32). Next, when the processing in FB2 (32) is completed, it is input to FB3 (33). Finally, the processing result of FB3 (33) is output.

As described above, in FBD, data processed by individual FBs is provided as input to FBs connected by connection lines, and data processing proceeds. The value of the data holding unit 203 is input to the first FB, and the value output from the last FB is output to the data holding unit 203 again.
As explained in the background section, in the stage of program development, in order to partially confirm the operation of the program, a part that is not subject to the operation confirmation may be commented out. However, in order to comment out the program created by the user, it is necessary to change the program on the program creation means 200. In order to execute the changed program, it is converted into an execution format and the program holding means 201 is executed. After being stored in the program execution means 202, it is necessary to read the program execution means 202. It is not efficient to perform this series of operations every time the comment-out position is changed, and it cannot be said that the program development efficiency is high.

  Therefore, in the first embodiment, an execution flag is provided for each FB, and when the program is executed by the program execution means 202, only the FB with the program execution flag is executed. Further, ON / OFF of the execution flag can be performed on the program after being converted into the execution format without editing the program by the program creation means 200. When the actual machine that executes FBD has a display device such as an LCD, the ON / OFF operation of the execution flag can be performed using the input device while watching the FBD displayed on the display device. Is possible. It is also possible to display only the execution flag side by side on the screen without displaying the FBD and perform the ON / OFF operation on the actual machine. In addition, when an actual machine that executes FBD is connected to a program development environment such as a personal computer, it is also possible to display the FBD on the program development environment and manipulate a desired FB execution flag.

It is not necessary to edit the program by the program creation means 200 every time the commented-out position is changed, convert it into an execution format, and then read it again into the program execution means 202, so that the program development efficiency can be improved.
Next, means for realization will be described.
FIG. 4 is a diagram showing an example of an FB provided with an execution flag. FIG. 4A shows that the execution flag 42 is checked and the FB 41 is executed. On the other hand, FIG. 4B shows that the execution flag 42 is not checked and the FB 41 is not executed.
An example of the FBD described by the FB having the execution flag 42 is shown in FIG. In FIG. 5, the execution flag 42 is checked in FB1 (31) and FB3 (33), but FB2 (32) is not executed because the execution flag 42 of FB2 (32) is not checked. Therefore, the program is equivalent to the FBD shown in FIG.

This example shows a method in which an FB whose execution flag is checked is judged to be valid and executed, and an FB that is unchecked is not executed. On the contrary, the execution flag is checked. A method may be used in which an FB whose execution flag is not checked is not executed.
Therefore, the calculation result of each FB is substituted into a variable for holding the calculation result, and the value of this variable becomes the input of the next FB to be executed. Therefore, if there is an FB that is not executed among consecutive FBs, the processing of that FB is not reflected in the resulting value, and the same result as commenting out is obtained.

  An example of the data format of the FB provided with the execution flag 42 is shown in FIG. The data of each FB includes an ID 71 of a function block for specifying the FB, an execution flag 72 for controlling execution, and input 1 (73) and input 2 (75 for holding connection line data connected to the FB input pin. ), Similarly, an output 1 (75) and an output 2 (76) for holding data of a connection line connected to the output pin. The information of the execution flag 42 can be included in the data format of the FB in this way, or an area for storing only the execution flag 42 is created and the corresponding execution flag 42 is referred to from each FB. May be.

Next, processing in the program execution unit 202 will be described with reference to FIG. The program execution means 202 reads one FB from the program (step 81). It is determined whether the execution flag 42 of the FB is valid or invalid (step 82). If it is valid, the processing of the FB is executed (step 83). If it is invalid, the processing of that FB is not executed. Next, the program counter indicating the FB to be executed is advanced by one (step 84). Then, it is determined whether the end of the program has been reached (step 85). When the end of the program is reached, the program is terminated, and when there is a continuation, it moves to reading the next FB.
ON / OFF of the execution flag 42 can be operated by the operation unit 206 while confirming the FBD displayed on the display unit 207, and the displayed FBD is confirmed on the program creation unit 200. It is also possible to operate while. Since these operations are performed on the FBD converted into the execution format, there is no need to convert the program into the execution format after the operation.

FIG. 9 is an FBD showing a method of adding a conditional statement as a method of switching the execution flow without converting the execution format. In the figure, since conditional statements 91 and 92 are added, an FB different from the process originally intended to be described in the program is added to the program. As a result, the readability and maintainability of the code are deteriorated. Therefore, it is not preferable compared to the method of providing the execution flag 42 in each FB.
As described above, if there is a part to be commented out in the program, it is possible to obtain the same effect as commenting without converting the program to an execution format by simply switching the execution flag of the corresponding part to invalid. Can do. In addition, since program conversion is not required during program creation, program development efficiency can be improved.

Embodiment 2.
FIG. 10 shows an embodiment in which a program confirmation unit 1002 for determining whether a program is grammatically correct is provided on the program development environment. The program confirmation unit 1002 is a unit that determines whether the FBD is a grammatically correct FBD by an ON / OFF operation of a certain FB execution flag 42 in the FBD 1001. The program confirmation unit 1002 may exist on a real machine that executes FBD.
The program checking unit 1002 operates immediately after the execution flag 42 is switched, and checks the program syntax. Then, the confirmed result is displayed on the program display means 1003. The program display unit 1003 displays a program, for example, the display part of the display unit 207 or the program creation unit 200.

Next, the flow of the program confirmation unit 1002 will be described with reference to FIG.
The program confirmation unit 1002 is activated every time the execution flag 42 of the FB is operated. When the program confirmation unit 1002 is activated, the program is read (step 111), and it is confirmed whether the program is grammatically correct (step 112). Next, it is confirmed whether the program is grammatically correct (step 113). If the program is grammatically correct, the program display means 1003 indicates that there is no problem with the program. On the other hand, if the program is not grammatically correct, for example, an illegal part in the program is highlighted and displayed (step 114).

Display examples of the program display means 1003 are shown in FIGS. In FIG. 12, the execution flag 42 of the FB 12 (123) having two inputs and one output is turned OFF. If the FB 12 (123) becomes invalid, the FBD cannot be executed because it is not grammatically established. Therefore, as shown in FIG. 13, the illegal part is highlighted.
In this example, the illegal part is emphasized by increasing the width of the line, but the illegal part can be emphasized by various methods such as changing the color of the line or the background color. .
In this way, by highlighting the illegal part, it is possible to easily identify the part where the problem has occurred.

Embodiment 3.
FIG. 14 shows an example of an FB having an alternative FB (141) that is executed when the FB execution flag 42 is OFF. In this example, the FB 12 (123) holds an AND FB as an alternative FB (141). Since the execution flag 42 of the FB 12 (123) is OFF, FB AND (141) is executed instead of the FB 12 (123) at the time of execution. On the other hand, when the execution flag 42 is ON, FB12 (123) is executed.
An example of the data format of an FB having an alternative FB (141) is shown in FIG. An alternative FB ID 151 is added to the normal FB data format. If the execution flag 42 is OFF, the alternative FB ID 151 is read and executed.

In this way, by separately holding the alternative FB 141 that is executed when the execution flag 42 is turned OFF, it is possible to prevent the program from becoming grammatically incorrect due to the operation of the execution flag 42. In addition, the execution contents of the program can be switched without changing the program and reconverting it into an execution format, so that debugging can be made more efficient, for example, by registering an FB for debugging.
In this example, one alternative FB 141 is described for one FB, but one circuit including a plurality of FBs can be registered for one FB.

Embodiment 4.
The rewriting of the execution flag of the FB may be performed while the FBD program is stopped or may be executed. There are two ways to rewrite the execution flag of an FBD program: a method on an actual machine, or a program development environment realized on a personal computer or the like.
FIG. 16 shows an embodiment in which the execution flag of the FB is rewritten on the actual machine. The execution flag operation means 161 is a means for operating the execution flag 42 of each FB of the FBD. This execution flag operation means 161 operates the execution flag 42 with means for displaying the status of the execution flag, such as displaying an FB on the screen of the actual machine or displaying display parts corresponding to the execution flag side by side. This is realized by the actual input device 104. When the actual machine does not have a display screen, the execution flag 42 is made to correspond to the input device 104, and the execution flag 42 is operated according to the input.

The execution flag manipulated by the execution flag manipulation means 161 confirms whether the program is a grammatically correct program by the program confirmation means 1002 on the actual machine.
When it is performed in the program development environment, the execution flag operation means 161 and the program confirmation means 1002 in FIG. 16 are present in the program development environment, and it is confirmed whether or not the newly set combination of execution flags has a grammatical problem. Then, the combination of execution flags established grammatically is reflected in the execution format program.
Whether the program confirmation unit 1002 exists on the actual machine or the program development environment, and if the execution flag 42 is not set so that the program is grammatically correct, The execution flag 42 existing in is not switched at all.
As described above, when the execution flag 42 is rewritten online, the program confirmation unit 1002 confirms that the execution flag 42 is grammatically correct, and then simultaneously switches the execution flag 42 of the FB. It is possible to prevent a situation in which a grammatical error occurs in FBD processing and the processing is interrupted.

Embodiment 5.
FIG. 17 shows an embodiment in which execution flag control means 171 for operating the execution flag 42 in the program is provided from the program. As one of the FBs, an FB for operating the execution flag 42 of the designated FB is provided. In this FB, the identification number of the FB to be operated by the execution flag 42 is designated. The identification number is a number that can identify one FB to be operated by the execution flag 42.

When the program execution unit 202 reads the FB that operates the execution flag 42, the program execution unit 202 calls the execution flag control unit 171 to operate the execution flag 42. The operation of the execution flag 42 can be switched from ON to OFF, or can be switched from OFF to ON.
The FB to be executed can be selected by operating the execution flag 42 of the designated FB from the program. Therefore, it is possible to perform processing such as switching the FB to be executed according to the execution status.
The control of the execution flag 42 can be applied to an FB having an alternative circuit. It is also possible to operate the execution flag 42 after confirming the program.

Embodiment 6.
In the sixth embodiment, a character string is set as the execution flag 42.
FIG. 18 shows an example of the system configuration in this case. The program execution unit 202 compares the character string set in the execution flag 42 with the character string held by the valid character string holding unit 181, and the matching characters An FB having a column as an execution flag 42 is executed.
The effective character string holding unit 181 is a unit that holds a character string for comparison with the character string described in the execution flag 42 of the FB, and can hold a plurality of character strings. When a character string is described in the execution flag 42 of the read FB, the program execution unit 202 checks whether there is a matching character string in the valid character string holding unit 181, and the matching character string is If it exists, execute the FB.

An example in which a character string is described in the execution flag 42 is shown in FIG. In the execution flag 42, not only ON / OFF but also a character string can be described. In this example, “DEBUG” is described as a character string.
When a character string is specified, only the FB having the character string defined as valid is executed in the program execution means 202. FBs with strings that are not defined as valid are never executed. An FB for which nothing is set in the execution flag 42 is executed as it is.
If “DEBUG” exists in the valid character string holding means 181, FB31 (192) and FB41 (195) are executed. On the other hand, if “DEBUG” does not exist in the valid character string holding means 181, the processing of FB 31 (192) and FB 41 (195) is not executed.

The processing flow of the program execution means 202 in this case is shown in FIG.
The program execution means 202 reads one FB from the program (step 2001). It is determined whether or not the execution flag 42 of the FB is a character string (step 2002). If it is not a character string but a flag indicating ON / OFF, it is determined whether the execution flag 42 is valid (step 2003). On the other hand, if a character string is set in the execution flag 42, it is confirmed whether there is a matching character string in the valid character string holding means 181 (step 2004). If there is a matching character string, the corresponding FB is executed as in the case where the execution flag 42 is ON (step 2005). On the other hand, if there is no matching character string in the valid character string holding means 181, as in the case where the execution flag 42 is OFF, the corresponding FB is not executed and the program counter is moved (step 2006). .

After the program counter is advanced to the next FB, it is determined whether the end of the program has been reached (step 2007). When the end of the program is reached, the program is terminated, and when there is a continuation, it moves to reading the next FB. The character string to be defined as valid is designated by the program creation means 200 or the input device 104.
Before registering the character string defined as valid in the valid character string holding means 181, it is possible to confirm whether the program is a grammatically correct program by changing the valid character string using the program confirmation means 1002. .

In order to display information during debugging, the same character string may be defined in the execution flag 42 of the FB having the data display function, and the same character string may be defined as valid in the valid character string holding means 181. If the character string is defined as valid, an FB that displays information is executed, so the program operation can be confirmed by an FB that has a display function. On the other hand, when the operation check of the program is completed, it is possible to erase the entire display by invalidating the character string.
In addition, by setting a character string defined in the execution flag 42 of the FB for each product, a program corresponding to a variety of products can be created. FIG. 21 is an example of an FBD corresponding to two types of products.

  After executing FB60 (211) and FB70 (214), if “WorkA” is defined in the valid character string holding means 181, FB61 (212) and FB71 (215) are defined as “WorkB”. In this case, FB62 (213) and FB72 (216) are executed. If the process for switching for each product is described by conditional branching, the conditional branching increases as the number of products increases, and the readability of the program deteriorates. In the method of setting a character string in the execution flag 42, only an FB that matches the character string held in the valid character string holding means 181 is executed, so that a program with good readability can be described without describing a conditional branch. Is possible.

Embodiment 7.
FIG. 22 shows an embodiment provided with effective FB detection means 222 for detecting an FB with an effective execution flag 42 in the program. The valid FB detection unit 222 refers to the execution flag 42 set in the FB in the program and the character string held in the valid character string holding unit 181, and the valid setting is made, and processing is performed at the time of execution. Only FB is displayed on the program display means 1003.
According to this embodiment, since only FBs for which valid settings have been made are displayed, there is no need to individually check the execution flags 42 set for each FB, and the program can be displayed in an easy-to-understand manner. .
It is also possible to display the effective FBs in an easy-to-understand manner by changing the display colors of the FBs that are set valid and the other FBs.

Embodiment 8.
In the eighth embodiment, a flowchart is set as the execution flag 42.
FIG. 23 shows a system configuration diagram in this case. An execution flag 42 is set for each flow in the flowchart, and execution / non-execution of the flow is determined according to the state of the execution flag 42 set for each flow. A flowchart execution means 233 is provided.
The flowchart execution means 233 can replace the portion corresponding to the FB with the flow in each means of the second to seventh embodiments.
According to the second embodiment, the program confirmation unit 1002 can highlight and display a grammatical error in the program.

According to the third embodiment, an alternative flow is described in each flow, and when the execution flag 42 is OFF or invalid, the contents described in the alternative flow can be executed.
According to the fourth embodiment, after the program confirmation unit 1002 confirms that the program is grammatically correct, the execution flag manipulation unit 161 can simultaneously switch the execution flags 42 in the program.
According to the fifth embodiment, the execution flag 42 of each flow can be operated using the execution flag control means 171 from the program.
According to the sixth embodiment, a character string is designated in the execution flag 42 of each flow, and compared with the character string held by the valid character string holding unit 181, only a flow having a matching character string can be executed. .

According to the seventh embodiment, a character string is designated in the execution flag 42 of each flow, compared with a character string held by the effective character string holding unit 181, and only a flow having a matching character string is stored in the program creation unit 200 or Can be displayed on the program display means 1003.
Furthermore, not only function blocks and flowcharts, but also ladders and sequential function charts, which are graphical programming languages, control the execution flag 42 at the time of execution by setting the execution flag 42 in each execution module. The operation can be switched.

Embodiment 9.
In the ninth embodiment, an indicator is set as the execution flag 42. The display device has a function in which the display processing means reads display component data and displays the component indicated by the display data on the screen. FIG. 24 shows a system configuration diagram in this case. An execution flag 42 is set for a display component, and display / non-display of the display component is determined according to the state of the execution flag 42 set for each display component. Display execution means 244 is provided.
The display execution means 244 can be executed by applying a portion corresponding to the third embodiment, the sixth embodiment, and the seventh embodiment to the display component.

  According to the third embodiment, it is possible to register a display component to be displayed instead of one display component when the display component is not displayed. According to the sixth embodiment, a character string that determines whether or not to display the display component is defined for the display component, and the display component is displayed only when the character string is determined to be valid. it can. By arranging a plurality of display parts at the same coordinates and defining different character strings as valid, it is possible to display only valid display parts. Furthermore, according to the seventh embodiment, only the display components that are set valid by the effective display component detection means 242 are displayed on the editing screen, so that the editing operation can be made more efficient.

Embodiment 10.
FIG. 25 is a diagram showing a unit configuration of an inspection system which is an object of the present invention. FIG. 25 shows a target carry-in machine 300, an inspection station 301, a carry-out machine 302, and a programmable inspection device 303 that controls them, and consider performing an inspection. The programmable inspection device 303 controls the carry-in machine 300 to carry the inspection object 304 into the inspection station 301. In the inspection station 301, the inspection object 304 and the programmable inspection apparatus 303 are electrically connected, such as attaching a jig to the inspection object 304, and inspection of inspection items described in a tabular program is performed. The inspection object 304 that has been inspected is unloaded from the inspection station 301 by the unloader 302.

The progress of the inspection can be confirmed on the display screen of the programmable inspection device 303. The program inspection apparatus 303 can execute a tabular program that lists items and flow of inspection. FIG. 26 shows an example of a tabular program. The tabular program includes a step number 400, a comment 401, a measurement condition setting unit 413, a measurement target setting unit 414, a determination criterion setting unit 415, and a post-determination process setting unit 416.
When the tabular program is executed, the step number 400 and the comment 401 of the step being executed, the value described in the measurement condition setting unit 413, the measurement target described in the measurement target setting unit 414, and the determination criterion setting unit 415 And the contents described in the post-judgment processing setting unit 416 can be displayed on the display screen.

  The measurement condition setting unit 413 describes conditions set for the inspection object 304 at the time of measurement. FIG. 26 illustrates a case where the inspection target 304 has two switches SW-1 and SW-2 as switches and a channel CH-1 for inputting a voltage. In FIG. 26, SW-1, SW-2, and CH-1 in the tabular program are all tags (names arbitrarily given to the input / output device of the inspection apparatus by the user) and are actually data. A device corresponding to the holding unit 203 exists. Further, these devices are connected to the inspection object 304 via the input means 204 and the output means 205. In the example of FIG. 26, in step 1, SW-1 is turned on, SW-2 is turned off, and 0.0V is applied to CH-1. An arbitrary number of devices can be set in the measurement condition setting unit 413.

  In the weight column 405, a waiting time from when the measurement condition is set until the value to be measured is acquired is designated. Adjust the difference in time constants depending on the measurement target by specifying the waiting time in the weight column. The unit of time set for the weight includes seconds and milliseconds. After the time specified in the weight column 405 has elapsed, measurement is performed from the target specified by the measurement target setting unit 414. In the target column of the measurement target setting unit 414, a channel number for measuring the value of the inspection target 304 is designated. In the example of Step 1 in FIG. 26, A / D1-CH3 is designated as a target. This indicates that the value of channel 3 on the first A / D board of the programmable inspection device 303 to which the inspection object 304 is connected is measured. The measured data is held in the data type specified in the data type column 407, and the subsequent pass / fail judgment is also performed in the specified data type.

  The target value specified and measured in the target field 406 of the measurement target setting unit 414 is compared with the value specified by the determination criterion setting unit 415 to determine whether the determination criterion is satisfied. The determination criterion setting unit 415 includes a minimum value column 408, a maximum value column 409, and a coincidence comparison column 410. The minimum value column 408 describes the minimum value of the pass / fail judgment criteria, and the maximum value column 409 describes the maximum value of the pass / fail judgment criteria. If the measured value is within this range, a pass (OK) determination is made. If the measured value does not fall within this value, a failure (NG) is determined. When there is no description of the values in the minimum value and the maximum value, and a numerical value is described only in the match comparison column 410, it is determined whether the measured value matches the numerical value described in the match comparison column 410. . If they match, a pass (OK) determination is made. If they do not match, a failure (NG) determination is made.

  Based on the determination result determined by comparing the value measured by the measurement target setting unit 414 with the value set by the determination criterion setting unit 415, the process described in the post-determination process setting unit 416 is executed. . The post-judgment processing setting unit 416 includes two columns, an OK column 411 and an NG column 412. The OK column 411 describes a process to be executed when the determination result is acceptable (OK). The NG column 412 describes a process to be executed when the determination result is “fail” (NG). In the OK column 411 of the post-determination process setting unit 416 in step 4 in FIG. 26, a process for calling “Func1”, which is another software object existing on the system, is designated. If the determination result in step 4 is OK, this “Func1” is called from the tabular program execution means 273 described later and executed.

When the process described in the post-judgment process setting unit 416 is finished, the tabular program execution unit 273 proceeds to the next step (line) of the same tabular program, and reads the step number 400 and the comment 401. After these are displayed on the display screen, the data described in the measurement condition setting unit 413 is output, and the remaining processing of this line proceeds.
When processing of one line of data is completed in this way, the process proceeds to the next line. When the processing of the entire table program is completed, the tabular program ends.
In the tenth embodiment, each element of the tabular program is set as the execution flag 42.

FIG. 27 shows a system configuration diagram in this case. An execution flag 42 is set for each element of the tabular program, and execution / non-execution of the element is executed according to the state of the execution flag 42 set for each element. Tabular program execution means 273 is provided.
The tabular program execution means 273 can execute the processing corresponding to the second to seventh embodiments by applying the processing corresponding to the tabular program.
That is, in the second embodiment, the program confirmation unit 1002 confirms whether the grammar of the tabular program is maintained. In the third embodiment, an alternative cell is prepared for a cell in a tabular program. If the execution flag 42 of each cell is ON, the content described in the cell is executed, and if the cell content is OFF, the content described in the alternative cell is executed.

  In the fourth embodiment, the program execution flag 42 is actually rewritten after using the program confirmation unit 1002 to confirm whether the rewritten execution flag 42 is set to operate correctly. In the fifth embodiment, the cell execution flag 42 is operated using the execution flag control means 171 from the table format program. The operation of the cell execution flag 42 can be described by a script in the script column, or the execution flag 42 set in the cell together with the device or a character string to be enabled can be described in the condition setting column. is there.

  In the sixth embodiment, a character string is set in each cell and is compared with the character string held in the effective character string holding means 181. When the character string described in the cell matches the character string stored in the valid character string storage unit 181, the contents described in the cell are executed. If the character string described in the cell is not held in the valid character string holding means 181, the contents described in the cell are not executed. If no character string is set in the column for setting the cell execution flag 42, the contents of the cell are executed regardless of the character string stored in the valid character string holding means 181.

In the seventh embodiment, when the execution flag 42 is ON or the same character string as the character string set in the execution flag 42 is included in the valid character string holding means 181, Display the contents. Other cells are not displayed. Further, by displaying the corresponding cell and other cells in different display colors, it is possible to display the valid cells in an easy-to-understand manner.
In the tabular program, it is also possible to specify in units of columns and rows.
According to the third embodiment, it is possible to create a substitute row for each row or create a substitute column for each column.

  Further, according to the sixth embodiment, it is possible to set an effective character string in the execution flag 42 in units of rows, or to set an effective character string in the execution flag 42 in units of columns. A row or column that matches the character string stored in the valid character string holding means 181 is executed. Therefore, when writing a program that handles various types, it is possible to adjust the rows and columns to be executed by the effective character string holding means 181.

It is a block block diagram which shows the system used for the program execution control system of this invention. It is a functional block diagram which shows operation | movement of the said system. It is a figure which shows an example of a function block diagram. It is a figure which shows an example of the function block which provided the execution flag by Embodiment 1 of this invention. It is a figure which shows an example of the function block diagram described by the function block with the said execution flag. 6 is a functional block diagram equivalent to the functional block diagram of FIG. It is a figure which shows the example of the data format of the function block which provided the execution flag. It is a flowchart which shows the process of the program execution means in the said Embodiment 1. 6 is a functional block diagram illustrating an alternative of the present invention.

It is a figure which shows the structure of the system provided with the program confirmation means in Embodiment 2 of this invention. It is a flowchart which shows the process of the program confirmation means in the said Embodiment 2. It is a figure which shows the example of a display of the program display means in Embodiment 2 of this invention. It is a figure which similarly shows the other example of a display of the said program display means. It is a functional block diagram in case it has an alternative circuit in Embodiment 3 of this invention. It is a figure which shows the example of the data format of the function block in the said Embodiment 3. FIG. It is a figure which shows the structure of the system provided with the execution flag operation means which performs online rewriting in Embodiment 4 of this invention. It is a figure which shows the control aspect at the time of providing the execution flag control means in Embodiment 5 of this invention. It is a figure which shows the system configuration example at the time of setting a character string as an execution flag in Embodiment 6 of this invention.

It is a functional block diagram which shows the example which described the character string in the execution flag. It is a flowchart which shows the flow of a process of the program execution means in the said Embodiment 6. It is a function block diagram when the character string defined in the execution flag is set for each product. It is a system block diagram at the time of providing the effective function block detection means in Embodiment 7 of this invention. It is a figure which shows the system configuration example at the time of setting a flowchart as an execution flag in Embodiment 8 of this invention. It is a figure which shows the system configuration example at the time of setting a display as an execution flag in Embodiment 9 of this invention. It is a figure which shows the unit structure of the test | inspection system which is one object of this invention. It is a figure which shows the example of the table format program used with the programmable test | inspection apparatus of the said test | inspection system. It is a figure which shows the system configuration example at the time of setting each element of a tabular program as an execution flag in Embodiment 10 of this invention.

Explanation of symbols

200 Program creation means 201 Program holding means 202 Program execution means 203 Data holding means
204 input means 205 output means
206 Operating means 207 Display means
31-33, 41, 121-124 Function block
42 execution flag 1002 program checking means
1003 Program display means 141 Alternative function block 161 Execution flag operation means 171 Execution flag control means
181 Valid character string holding means 222 Valid FB detection means
233 Flowchart execution means 244 Display execution means
273 Tabular program execution means

Claims (11)

  A program creation means for creating a program in the form of a function block; and a program execution means for executing the program created by the program creation means, and an execution flag for deciding whether or not to execute the function block in the function block It is possible to operate ON / OFF of the execution flag while the program described in the function block is stopped or being executed, and only the function block for which the execution flag is valid is executed by the program execution means. A program execution control system characterized by the above.   As a result of operating the execution flag of the function block, it is confirmed whether or not the program is grammatically correct, and if it is an illegal program, a program confirmation means is provided to detect the illegal part in the program. The program execution control method according to claim 1, wherein:   4. The program execution control system according to claim 3, further comprising display means for emphasizing and displaying an illegal part in the program.   2. The program according to claim 1, wherein an alternative function block of the function block is defined in the function block, and the defined alternative function block is executed when the execution flag of the function block is OFF. Execution control method.   The execution flag operation means for operating the execution flag of each function block, and the program confirmation means for confirming whether the execution flag operated by the execution flag operation means is a grammatically correct program are established grammatically. 2. The program execution control method according to claim 1, further comprising program execution means for executing a combination of execution flags.   2. The program execution control method according to claim 1, wherein the execution flag of the function block can be set from the function block to be executed.   A character string is set in the execution flag of the function block, and this character string is compared with the character string held by the effective character string holding means managed by the program execution means, and the function block having the same character string is determined to be valid. The program execution control method according to claim 1, wherein the program execution control method is executed as described above.   The effective function block detecting means for detecting a function block with an effective execution flag is provided, and only the function blocks that are set to be effective and perform processing at the time of execution are displayed on the program display means. Program execution control method.   9. The program execution control method according to claim 1, wherein the execution flag is applied to a flowchart.   9. The program execution control method according to claim 4, wherein the execution flag is applied to a display component that displays an execution flag on a display.   9. The program execution control method according to claim 1, wherein the execution flag is applied to each element of the tabular program.

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