JPH07129079A - Method for installing programming loader - Google Patents

Abstract

PURPOSE:To simplify a user's instruction operation by directly transferring a compressed file to where the program is to be installed. CONSTITUTION:A user mounts a floppy disk in an FDD 10 and sets the drive to be accessed at the FDD 10 by using a keyboard 9. A CPU 1 discriminates whether the identification information carried in the assigned file indicates the compressed file or not. The CPU 1 discriminates whether the file is readable or not when the compressed file is indicated. The processing procedure is forcibly ended in the case of decision of reading disable. The execution procedure ends when the decision of able is obtd. and the absence of a vacant region is confirmed. When the vacant region is confirmed, the CPU 1 sets the currently set drive as the drive to be copied and transfers the compressed file information of the floppy disk to the assigned area of the assigned drive. Namely, the user's instruction operation is merely the assignment of where the compressed file information is to be transferred. The instruction for copying is thus simplified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a programming loader installation method for creating a sequence program for a programmable controller.

[0002]

2. Description of the Related Art Conventionally, programmable controllers are
The electronic device is automatically controlled by executing the sequence program. This sequence program is created by the user operating a programming device called a programming loader. The created sequence program is saved and stored in the floppy disk. During operation of the programmable controller, the sequence program is installed from the floppy disk to the programming loader. Recently, a programming loader that can use a commercially available personal computer has been developed. In such a programming loader, a personal computer executes an operating system called DOS so that file information such as a floppy disk sequence program is installed (installed) in the personal computer.

[0003]

Since the amount of file information handled by a programmable controller such as a sequence program is large, the file information is compressed and stored in a floppy disk as needed, and is stored on a hard disk of a personal computer at the time of installation. Is decompressed (commonly called defrosting). For this reason, the user has to perform the following complicated operations.

That is, the user mounts the floppy disk on the personal computer, and inputs a copy command and the address of the work area of the copy destination (the program name may be substituted) from the keyboard. More specifically, the user sets a drive (a storage device such as a hard disk or a RAM desk) currently accessed by the personal computer as a floppy disk storage device, and sets the name of the file stored in the floppy disk to the personal computer. Is displayed on the display.

Next, the user designates the drive of the copy destination as the hard disk storage device, and causes the personal computer to transfer the file of the floppy desk to the designated drive on the hard desk by the copy command. After this, the user newly designates the file after copying as the file to be activated. The personal computer decompresses the specified compressed file and then activates the decompressed file.

As described above, in order to start the compressed file on the floppy disk, the user needs to execute many times,
The conventional example has a problem in that a processing command has to be input, and the key operation for that is complicated.

In view of the above points, the present invention simplifies the user's instruction operation for transferring the file information stored in a portable storage medium such as a floppy disk to the computer main body for execution. The purpose is to provide a method of installing a programming loader capable of doing so.

[0008]

In order to achieve such an object, the present invention provides a programming loader installation method for installing a compressed file stored in a portable storage medium to a hard disk in a programming loader or a RAM disk. , The compressed file is previously stored in the floppy disk with identification information indicating that the compressed file is a compressed file, and at the time of installation, the programming loader receives an instruction of the installation destination of the compressed file, and the compressed file is stored. It is confirmed by the identification information attached to the file that the file to be installed is a compressed file, and after the confirmation, the compressed file is read from the portable storage medium, decompression processing is performed, and the received instruction is indicated. Place of installation And to store the file information after thawing.

[0009]

In the present invention, attention is paid to the fact that the compressed file on the portable storage medium is not modified on the portable storage medium.
By transferring, the instruction operation of the user is simplified.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows the system configuration of a programming loader to which the present invention is applied.

The central processing unit (CPU) 1 executes the operation control of the entire apparatus, and also executes the installation processing according to the present invention based on the program stored in the system ROM 2. The system ROM 2 stores not only the program executed by the CPU 1 but also various fixed data used in the execution of this program.

The system RAM 3 temporarily stores data used for the arithmetic processing of the CPU 1. The video memory 4 stores the information displayed on the display 8 in the form of an image. The display 8 reads the image information stored in the memory 4 at a constant cycle and displays it on the display screen.

The keyboard 9 transfers information input by a user's key operation to the CPU 1 via the interface 6. Floppy disk storage device (FDD) 10
Reads / writes information from / to the floppy disk according to an instruction from the CPU 1. Read / write information is transferred from / to the CPU 1 via the interface 6. The hard disk storage device 11 stores and stores the installed file information. The stored information is read / written according to the instruction of the CPU 1.

The installation process of the compressed file executed with such a configuration will be described with reference to FIG. Although the control procedure shown in the drawing is actually described in a programming language that can be executed by the CPU 1, it is expressed functionally for convenience of explanation. In this embodiment, when a compressed file is created and stored in a floppy disk, identification information indicating that the file is a compressed file is added to the compressed file. User can use floppy disk as usual
It is attached to the DD 10 and the drive to be accessed is set to the FDD 10 using the keyboard 9 (S10).

As a result, on the display screen of the display device 8, the identification names of the plurality of file information stored in the floppy disk are displayed. The user uses the keyboard 9 to specify the identification name of the file to be installed (S20). C
PU1 determines whether or not the identification information attached to the designated file indicates a compressed file (S30). When the identification information does not indicate the compressed file, the execution procedure shifts to S110, and the installation process similar to the conventional one is performed.

On the other hand, when the identification information indicates a compressed file, the CPU 1 determines whether the compressed file can be read (S40). This process has been conventionally performed, and whether or not the data can be read is determined by checking that the data format of the file is a predetermined one.

When it is determined that the reading is impossible, a message to that effect is displayed, and the processing procedure is forcibly ended (S40 → S120).

When it is determined that the reading is possible, the CPU
No. 1 confirms that there is a storable empty area in the write destination, that is, in the designated area of the drive designated by the user (S60).

If it is confirmed that there is no empty area, an error message to that effect is displayed and the execution procedure ends (S60).
S → 130). When the empty area is confirmed, the CPU 1 sets the currently set drive (current drive) to the drive designated as the copy destination, and transfers the compressed file information of the floppy disk to the designated area of the designated drive. (S90 → S100). More specifically, the compressed file information is read from the head storage area of the compressed file on the floppy disk into the system RAM 3 by a predetermined amount. The CPU 1 decompresses the compressed file information on the system RAM 3 and stores the decompressed file information in the designated drive storage area to complete the installation.

The instruction operation performed by the user when the CPU 1 executes the processing described above is only to specify the transfer destination of the compressed file information. For this reason, the user's copy instruction, which has been conventionally performed, is omitted, and the user's instruction operation is simplified.

In addition to this embodiment, the following example can be implemented.

1) In this embodiment, the floppy disk is taken as an example of the portable storage medium, but another portable storage medium,
For example, the present invention can be applied to a memory card.

2) In this embodiment, an example in which the hard disk storage device 11 in the programming loader is set as the installation destination has been described, but a RAM disk, that is, RA
A card equipped with M may be designated as the installation destination.

3) Since the programming loader often compresses the created file, the compressed file is automatically installed in the specified directory in this embodiment. If you want to be able to perform the same operations as before, you can do the following. That is, the types of files indicated by the identification information attached to the compressed files are classified into three types: normal files without compression, compressed files for automatic installation processing, and compressed files for manual installation processing. The CPU 1 identifies the identification information and performs an installation process corresponding to the identification result.

[0026]

As described above, according to the present invention,
Since the user's instruction operation can be simplified, the information processing time related to the compressed file can be shortened, and the user's error instruction operation can be reduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing a system configuration of an embodiment of the present invention.

FIG. 2 is a flowchart showing a processing procedure executed by a CPU 1 of FIG.

[Explanation of symbols]

 1 CPU 2 System ROM 3 System RAM 4 Video Memory 5, 6, 7 Interface 6 Bus Switch 8 Display 9 Keyboard 10 FDD 11 HDD

Claims (1)

[Claims] 1. A compressed file stored in a portable storage medium is converted into a hard disk or R in a programming loader.
In a method for installing a programming loader to be installed in an AM disk, the compressed file is stored in advance in the floppy disk with identification information indicating that the file is a compressed file, and the programming loader compresses the compressed file at the time of installation. Accept the instruction of the file installation destination, confirm that the file to be installed is a compressed file by the identification information attached to the compressed file, and after the confirmation, read the compressed file from the portable storage medium and decompress it. A method for installing a programming loader, characterized by performing processing and storing decompressed file information in an installation destination indicated by the received instruction.