JPS61118806A - Programming device - Google Patents

Abstract

PURPOSE:To minimize the change of the cross reference in a program change mode with no overlap of programs by using a block number setting means and an intra-block number setting means. CONSTITUTION:In a programming mode the block number Pm is given by a block number setting means 520 every desired plural steps based on the block number designated by an input means 550. Then an intra-block number setting means 530 gives the intra-block number Ck every step within each block. A sequence program PRGM is stored to a storage means 510 by a storage control means 540 in relation to the numbers Pm and Ck. Thus the change of the cross reference due to the change of the program caused by addition, deletion, etc. of the program can be performed within the relevant block.

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose (Industrial Application Field) The present invention relates to a programming device, and in particular, in a programming device equipped with a memory for storing a program for a programmable controller, the present invention relates to a programming device equipped with a memory for storing a program for a programmable controller. This is an attempt to improve the program allocation method.

(Prior art and its problems) FIG. 8 shows the storage state of a program memory l in a conventional programming device.

Here, 2 to 5 are storage areas for program steps, in which write commands W, read commands R1, OR operation commands A, etc., and contact numbers related to the commands are stored.

In such a conventional programming device, when a program is extracted, it is done by specifying a command or a contact number. However, in the storage method shown in Figure 8, if there are multiple identical commands or identical contact numbers, it is necessary to specify which one of them to select. There were drawbacks.

Another disadvantage is that in order to change a program, such as adding or deleting a program, the program's cross-reference table (hereinafter referred to as a cross-reference) must be changed each time.

Figures 9 and 10 show how programs are changed in conventional programming devices. It shall be rewritten as shown in A).

In these figures, (B) shows the line number of the program, (C) shows the cross red reference, and (
The numbers shown in ) are contact numbers. In this way, in the conventional device, since the progera 1 is changed by one step (circuit) 9'), all the cross references must be changed. I (Objective of the Invention) Therefore, the present invention eliminates the above-mentioned drawbacks and eliminates the duplication of programs depending on the program extraction designation.
Moreover, it is an object of the present invention to provide a programming device that can minimize changes in cross references when changing programs.

[Configuration] (Means for solving the problem) In order to achieve the above object, as shown in FIG. 1, the present invention provides a programming device for inputting a sequence program PRGM to a programmable controller 500. , sequence program PRGM
storage means 510 for storing sequence program P
During RCM input processing, a block number setting means 520 forms a block by attaching a block number Pm to each one or more program steps according to the designation, and when forming the block, a block number setting means 520 adds a block number Pm to each of one or more program steps according to the designation, and when forming the block, a program step is assigned to the program step placed in the block. , a block number setting unit 530 that assigns a block number Ck, and a storage unit 540 that stores the sequence program in the storage unit 510 in association with the set block number Pffl and the set block number Ck; Input means 550 for inputting the sequence program PRCM and specifying the block number P11
It is characterized by having the following.

(Operation) That is, at the time of programming, the block number Pm is given by the block number setting means 520 for each desired plurality of steps based on the block number specified by the input means 550. Additionally, block number setting means 530
The intra-block number Ck for each step within each block is
is given. The sequence program PRCM is stored in the storage means 510 by the storage control means 540 in association with these numbers Pm and Ck.

Therefore, when extracting a program, simply block number P
By specifying i and the intra-block number Ck, one step can be specified and extracted. Furthermore, since the program memory is divided into blocks, changes in cross-references due to changes in programs, such as adding or deleting programs, can be made within that block.

(Example) The present invention will be described in detail below with reference to one drawing.

FIG. 2 shows an example of the configuration of the programming device of the present invention.
Here, 100 indicates the entire programming device, which is connected to a path 300 of the basic unit 200 of the programmable 0 controller via a connection section 111. 112
113 is a CPU in the form of a microprocessor, for example, which controls each section and performs processing to be described later. 113 is a ROM, which stores processing procedures to be described later with reference to FIG. 3 for performing programming processing. 114 is a RAM;
Program storage area (hereinafter referred to as program memory)
It has a working area of 114A and 114A. 115 is a console having a keyboard 118 and a CRT 117, for example. 118 is an internal bus of the programming device 100 that connects these parts.

FIG. 3 shows an example of the programming processing procedure according to the present invention. When the operator starts programming, first,
In step STP 1, the block number (page number) assigned to each block (page) when dividing the program memory 114A into blocks according to the operator's command, and the block number within the page related to programming. Initialize the number (circuit number).

In step 5TP3, it is determined whether the operator has issued a page number update command. Here, if there is an update command, the page in the memory 114A created up to the previous programming input is closed in step 5TP5, the page number is updated to the page number specified by the operator, and then step 5TP7 Initialize the circuit number in that page. On the other hand, if there is no update command in step 5TP3, the circuit number is incremented in step 5TP17.

The operator performs programming in step STP 9.
1, the input program is stored in the location on the memory 114A corresponding to the page number and circuit number determined in the processing up to this point in step 5TPII.

Then, in step 5TP13, it is determined whether or not there is a programming end command by the operator, and if programming is to be continued, the process returns to step 5TP3 and the above processing procedure is repeated.

The manner in which a program is stored in the memory 114A through the above-described processing will be described with reference to FIGS. 4 and 5. Figure 4 (A) is an example of a program expressed using a ladder diagram, and Figure 4 (B) is the page number P corresponding to the program.
, 1234-P, 123e and circuit number...C,
83,C,1 to C,n,C,1... are shown.

Further, FIG. 5(A) shows the memory 114A in which the program shown in FIG. 4(A) is stored, and FIG. 5(B) shows a part of the memory 114A in an enlarged manner.

When the operator finishes programming the first circuit 0.63 in FIG. 4(A) and starts programming the first circuit, if the operator specifies P, 1235 as the page number,
The previous circuit 0.83 is stored in the memory 114A as the last circuit on the page with page number P, 1234, and circuit numbers of C, 1 or less are assigned in order from the newly input circuit to page number P, 1235. If the page number P, 123B is specified at the end of the programming of the nth circuit C, n, the next input circuit will be the first circuit of page number P, 123B, and the same will be done. The program is stored in the program memory 114A, and thus a program is created on the program memory 114A as shown in FIGS. 5(A) and 5(B).

Therefore, when extracting a program, by specifying the page number and circuit number, one circuit will be specified and extracted.

FIG. 6 and FIG. 7 show aspects of program change. In these figures, (A) is the program, (
B) shows the page number and circuit number corresponding to the program, (C) shows the cross reference, and Figure 8 (
Assume that the program shown in A) is modified as shown in FIG. 7(A). In this way, according to this example, the cross
To change the reference, you only need to change the circuit number within the page, and the page number will not be changed. Therefore, if you only refer to the page number, you can use the cross reference before the program change as is. There is no longer a need to change cross references throughout as in the past.

[Effects] As explained above, according to the present invention, a program memory is divided into blocks for each desired number of circuits, page numbers are assigned to the blocks, and circuit numbers are sequentially assigned to the circuits on each page. Therefore, when extracting a program, one circuit can be specified and extracted simply by specifying the page number and circuit number. In addition, since the program memory is divided into pages, changes to cross-references due to program changes such as adding or deleting programs can be done within that page, significantly reducing the time required to change cross-references. It will be shortened to .

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of the present invention, FIG. 2 is a block diagram showing an example of the configuration of the programming device of the present invention, FIG. 3 is a flowchart showing an example of a programming process procedure by the device shown in FIG. 4, and FIG. (A) and (B
) are explanatory diagrams showing a developed connection diagram as an example of a program and the page number and circuit number corresponding to the program, respectively. A memory map showing the state stored in the program memory by the process shown in the figure and its partially enlarged view, Nos. e#) to (C) and Nos. 72 to (G) show the state when changing the program processed by the procedure shown in the third figure. Figure 8 is an explanatory diagram illustrating the mode of IE when a program stored in the memory is changed by professional processing using the conventional programming system S. 1, ll4A...Program memory, 100...Programming device, 111...Connection unit, 112...CPU, 113...ROM, 114...RAM, 115...Console, 118...Internal Bus, 200...basic unit, 300...pass. P, 1234-P, 123B...Page number, C1
1,... C, n... Circuit number, 510... Storage means, 520... Block number setting means, 530... Block 0 number setting means, 540...
Storage control means, 550... input means. Figure 3, Figure 9 (A) CB) (C
) No. 10 (A) Shout (B) (C)

Claims (1)

[Scope of Claim] A programming device for inputting a sequence program to a programmable controller, comprising: storage means for storing the sequence program; and one or more program steps according to designation during input processing of the sequence program. block number setting means for forming a block by assigning a block number to each block; intra-block number setting means for assigning an intra-block number to a program step placed in the block when forming the block; and the set block number. and storage means for storing the sequence program in the storage means in association with the set intra-block number, and input means for inputting the sequence program and specifying the block number. programming device.