JP2761788B2 - Program conversion device and program transfer device - Google Patents

Description

The present invention relates to a program transfer device for transferring a program between a plurality of programmable controllers, and more particularly to a program transfer device for transferring a program between programmable controllers operating in different control languages. A convenient program transfer device that can automatically and simultaneously transfer programs between different types of programmable controllers that operate in different control languages and that can share program resources between programmable controllers. A program transfer device that transfers programs between programmable controllers with the aim of providing a program that runs on the programmable controller that is the source of the program and the programmable controller that is the destination of the program Discriminating means for discriminating whether or not the control languages are different from each other; and when the discriminating means determines that the control languages operated by the two programmable controllers are different from each other, Conversion means for converting the stored program to be transferred into a program described in a control language for a programmable controller to which the program is to be transferred; and a program controller which converts the program converted by the conversion means to the program transfer destination. And a transfer means for transferring the data.

[Industrial applications]

The present invention relates to a program transfer device for transferring a program between a plurality of programmable controllers, and more particularly to a program transfer device for transferring a program between programmable controllers operating in different control languages.

[Conventional technology]

Conventionally, program transfer between programmable controllers has been performed via a support device that manages and supports them.

FIG. 4 is a diagram for explaining a program transfer method between programmable controllers via a conventional support device.

In the figure, a programmable controller 10 (hereinafter abbreviated as PC10) and a programmable controller 20 (hereinafter abbreviated as PC20) store model codes A and B indicating codes corresponding to respective models in a ROM (read / read). The PC 10 stores a program A for device control in a memory 12 such as a RAM (random access memory) or a ROM (read only memory). . When transferring the program A stored in the memory 12 of the PC 10 to the PC 20, the support device 30 first transmits the model code A of the transfer source PC 10 and the model code B of the transfer destination to the CPU 32 including a microprocessor or the like. It is determined whether or not PC10 and PC20 are the same model based on the program.
Is read and temporarily stored in the memory 31, and further transferred to the memory 22 of the PC 20. On the other hand, if the models are not the same model, an error message indicating that the models are different is displayed on a display unit of a panel (not shown).

Thus, an error message is displayed, PC10 and PC
If it is confirmed that the model 20 is a different model, the user transfers the program A of the PC 10 which is the transfer source of the program,
After being transferred (copied) to the memory 31 of the support device 30, the program A is once converted into an intermediate language, and then the intermediate language is converted to a PC based on the model code B of the PC 20 to which the program is transferred.
The operation of converting the program B into a program B operable by the PC 20 and transferring the converted program B to the memory 22 of the PC 20 has been performed manually.

[Problems to be solved by the invention]

As described above, in the conventional support device, the PC
When program transfer between PC10 and PC20, if PC10 and PC20 are different models, the program to be transferred by the user himself is temporarily converted to an intermediate language, and the intermediate language is operated on the transfer destination PC20. Complicated work of converting to a possible program had to be performed, which was very inconvenient and work efficiency was poor.

Advantageous Effects of Invention The present invention is capable of automatically and simultaneously performing program transfer between different types of programmable controllers operating in different control languages, and is a convenient way to share program resources between programmable controllers. It is an object to provide a program transfer device.

[Means for solving the problem]

 FIG. 1 is a diagram illustrating the principle of the present invention.

In the drawing, reference numeral 1 denotes a discriminating means. When a program is transferred between the programmable controllers, a control language operated by the program controller of the program transfer source and a control language operated by the programmable controller of the program transfer destination are determined. Are different from each other.

The discriminating means 1 receives information indicating the type of the control language operated by the programmable controller of the program transfer source and the programmable controller of the program transfer destination, and compares the type information, for example. The above determination is performed.

Numeral 2 is a converting means. When the determining means 1 determines that the control languages operating on the two programmable controllers are different from each other, the program to be transferred stored in the source programmable controller is transferred by the program. The program is converted into a program described in the control language for the programmable controller.

For example, at the time of the above-mentioned program conversion, the conversion means 2 once converts the program to be transferred, for example, into an intermediate language, and then converts it into a program described in a control language for the programmable controller at the transfer destination.

Reference numeral 3 denotes a transfer unit that transfers the program converted by the conversion unit 2 to the programmable controller to which the program is transferred.

The determining means 1 and the converting means 2 are constituted by, for example, a microprocessor or the like, and the transferring means 3 is constituted by, for example, a microprocessor or a DMA controller (Direct Me
mory Access controller).

[Action]

In the present invention, when a request to transfer a program stored in one of the programmable controllers to the other programmable controller is made by a user's command input or the like, the determination unit 1 determines whether the program is a transfer source. It is determined whether or not the control language operated by the one programmable controller and the control language operated by the destination programmable controller (the other programmable controller) are different from each other. If it is determined that they are different from each other, the conversion means 2 reads the program to be transferred stored in the transfer-source programmable controller,
The program is converted to a program written in a control language for the programmable controller to which the program is to be transferred.

When the program conversion is completed, the transfer means 3 transfers the program converted by the conversion 2 to the destination programmable controller.

By the above operation, the programmable controller of the program transfer source and the programmable controller of the program transfer destination
Even if the operable control languages are different from each other, the program to be transferred is automatically converted to a program written in a control language operable by the destination programmable controller and transferred. It is transferred to the previous programmable controller. Therefore, when a program is transferred between different types of programmable controllers having different operable control languages from each other, even if the control languages operated by those programmable controllers are different from each other, the user is required to carry out the conventional method. This eliminates the need to manually modify the program to be transferred by hand, improving the efficiency of program transfer between different types of programmable controllers that operate in different control languages, and improving the efficiency of program transfer between programmable controllers. It is also possible to share program resources.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<< Configuration >> FIG. 2 is a system configuration diagram of an embodiment according to the present invention.

In the figure, the programmable controller 100
The programmable controller 200 (hereinafter, abbreviated as PC 200) and the programmable controller 200 (hereinafter, abbreviated as PC 200) are different types of programmable controllers, and have different control languages for writing programs.

The PCs 100 and 200 store model codes in the ROMs 101 and 102 respectively built therein, and the model code of the PC 100 is different from the code a, and the code of the PC 200 is different from the code b.

The PC 100 has a memory 102 composed of a RAM (random access memory) or a ROM (read only memory) or the like, and stores a control program PRA in the memory 102. The PC 200 has a memory 202 including a RAM (random access memory) for storing a control program.

Further, the support device 300 includes a control unit 301 including a microprocessor and the like, a memory 302 including a RAM and the like, and has a function of managing and supporting a plurality of different types of PCs. It also has a function of performing program transfer between the PC 100 and the PC 200. This program transfer function also performs transfer between different types of programmable controllers as described later. The support device 300 is connected to both the PC 100 and the PC 200.

The input device 400 includes a keyboard or the like, and is used to input various commands such as a command for instructing the support device 300 to transfer a program between the PC 100 and the PC 200, and data input for creating a program.

<< Operation >> Next, the operation of the embodiment having the above configuration will be described with reference to FIG.

FIG. 3 shows a case where the support device 300 describes the program PRA described in the control language for the PC 100 stored in the memory 102 of the PC 100 via the support device 300 in the control language for the PC 200. Convert to program PRC, PC200
FIG. 9 is a diagram for explaining an operation of transferring to a.

This program conversion process is performed by the control unit 301 of the support device 300.

First, when the PC 100 and the PC 200 are connected to the support device 300, the control unit 301 of the support device 300 detects the connection by an interrupt or the like, and as shown in FIG.
A memory area 302a for PC 100 and a memory area 302b for PC 200 are secured in 302. The control unit 301 then proceeds to the ROM 101
The model code (code a) of PC100 from ROM102 to PC2
00 is read, and the read codes are respectively stored in the memory area 302a and the memory area 30.
It is stored in a predetermined area in 2b.

Then, the user, via the input device 400, a command of "transfer the program PRA from PC100 to PC200",
When input to the support device 300, the control unit 301 of the support device 300 transfers a program from the PC 100 to the PC 200 in the following procedure.

The control unit 301 reads the program PRA from the memory 102 of the PC 100.
And reads the read program PRA into the memory 302.
In the memory area 302a.

Subsequently, the model code (code a) of the PC 100 stored in the memory area 302a is compared with the model code (code b) of the PC 200 stored in the memory area 302b, and it is determined whether or not those codes are equal. I do.

If code a and code b are equal, PC 100
And the PC 200 are determined to be the same model, and the program PRA stored in the memory area 302a is directly transferred to a predetermined area of the memory 202 of the PC 200 without conversion.

On the other hand, if the code a is not equal to the code b, the program PRA written in the control language corresponding to the code a
Is converted into a program PRB described in an intermediate language, and the program PRB is stored in another area of the memory area 302a.

Then, the program PRB written in the above intermediate language
Is converted into a program PRC described in a control language corresponding to the code b which is the model code of the PC 200, and the program PRC is stored in a predetermined area of the memory area 302b.

Then, finally, the program PRC stored in the memory area 302b is transferred to a predetermined area of the memory 202 of the PC 200.

By the above operation, even if the PC 100 and the PC 200 have different models and different control languages for writing programs, the PC 100 can be
The program PRA for 00 is automatically converted into a program PRC described in a control language operable on the PC 200 and transferred to the PC 200.

Conversely, when the program is transferred from the PC 200 to the PC 100, similarly, the support device 300 converts the program described in the control language for the PC 200 into an intermediate language, and further converts the program into the intermediate language. The language is converted into a control language for the PC 100, a program described in the control language for the PC 100 is generated, and the program is transferred to the PC 100. This allows the program written in the control language for PC100 to transfer the program from PC200 to PC100.
The program is automatically converted into a program written in a control language for C200.

The program transfer between the PC 100 and the PC 200 can be sped up by performing a DMA transfer.

〔The invention's effect〕

As described above, according to the present invention, when a program is transferred between programmable controllers, a control language operated by the transfer source programmable controller and a control language operated by the transfer destination programmable controller are different. Judges whether they are different from each other, and if they are different, automatically converts them to a program operable by the destination programmable controller, and then automatically transfers the converted program to the destination programmable controller Therefore, when transferring a program between programmable controllers having different operable control languages, the user does not need to manually modify the transfer program as in the past, and the above program transfer can be performed easily and at high speed. It can be carried out. Further, since the program resources can be shared between the programmable controllers, the program resources can be effectively used.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining the principle of the present invention, FIG. 2 is a system configuration diagram of an embodiment according to the present invention, FIG. 3 is a diagram for explaining the operation of the above embodiment, and FIG. FIG. 3 is a diagram illustrating a program transfer method between PCs. 1... Determination means, 2... Conversion means, 3.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G05B 19/05 G05B 19/418 G06F 9/06 G06F 9/455 G06F 13/00

Claims (5)

(57) [Claims] A determining means for determining whether a control language operated by a program controller of a program transfer source and a control language operated by a programmable controller of a program transfer destination are different from each other; By the determination means (1), the two programmable
If it is determined that the control languages operating on the controller are different from each other, the program stored in the programmable controller of the program transfer source is converted to a program written in the control language of the programmable controller of the program transfer destination And a conversion means (2). 2. The discriminating means (1) inputs information indicating a type of a control language operated by the programmable controller as a program transfer source and a programmable controller as a program transfer destination, and outputs the type information. 2. The program conversion device according to claim 1, wherein the determination is made by comparing 3. The conversion means (2) converts a program stored in the program controller of the program transfer source into an intermediate language, and then operates the intermediate language on the programmable controller of the program transfer destination. 2. The program conversion device according to claim 1, wherein the program conversion device converts the program into a simple program. 4. A program transfer device for transferring a program between programmable controllers, wherein a control language operated by the program controller of the program transfer source and a control language operated by the programmable controller of the program transfer destination are mutually different. Determining means (1) for determining whether or not the two are different;
If it is determined that the control languages operating on the controller are different from each other, the program to be transferred stored in the source programmable controller is replaced with the program written in the control language for the destination programmable controller. A program transfer device comprising: conversion means (2) for converting; and transfer means (3) for transferring the program converted by the conversion means (2) to the programmable controller of the program transfer destination. . 5. The conversion means (2) converts the program to be transferred once into an intermediate language, and then converts the intermediate language into a program described in a control language for a programmable controller at a transfer destination. 5. The program transfer device according to claim 4, wherein: