JPH0212503A - Sequence program editing system - Google Patents

Abstract

PURPOSE:To easily perform the change of plural pieces of address data by updating the address data in an edit buffer by allocating new address data stored in a memory on an element starting from the one equivalent to the position of a cursor sequentially. CONSTITUTION:It is assumed that four pieces of address data X0.0, X0.1, X0.2, and X0.3 are desired to change to new pieces of address data X6.0, X7.1, X8.0, and X10.2, respectively. To attain the above change, the new address data are stored in the memory of a program generator by performing key-in in sequence of X6.0, X7.1, X8.0, and X10.2 by using operating keys as leaving the cursor on a contact X0.0. Next, when an input key is depressed, the new data are allocated on the element starting from the one in the edit buffer equivalent to the position of the cursor, then, the address data in the edit buffer can be updated. In such a way, it is possible to easily change the plural data without necessitating the movement of the cursor at every operation.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a sequence program editing method, and in particular to a sequence program editing method.
This invention relates to a sequence program editing method for sequence control using C (programmable controller).

[Conventional technology]

-a, it is often necessary to debug after creating a sequence program. When debugging, display the sequence program in ladder diagram format on the display screen of the display device, change the shape of the net, and check the logic. Change address data of physical contacts and logical coils.

When changing address data, the cursor is moved to the display position of the contact or coil to be changed, and then a new address is keyed in from the programming device.

[Problem to be solved by the invention]

In the conventional technology, only the address data of the contact or coil that the cursor is currently pointing to can be changed. Therefore, even when changing the addresses of a plurality of contacts arranged in a row, it is necessary to alternately repeat cursor alignment and key-in of address data a predetermined number of times.

It is desirable for the operator to be able to key in the new address data that he or she is about to enter as soon as possible.If multiple address data are stored, key-in may be delayed or require extra operations during the process. This increases the possibility of entering incorrect data.

The present invention has been made in view of these points, and it is an object of the present invention to provide a sequence program editing method that can easily change a plurality of address data.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides an editing method for a sequence program in a ladder format, in which an arbitrary number of contact points at which address data of a ladder diagram displayed on a display screen is desired to be changed are provided. and the step of selecting an element in the edit buffer corresponding to the cursor position by placing the cursor on the first neighboring point of the coil, and keying in the new address data of the above number from the programming device and storing it in the memory. and updating the address data in the edit buffer by allocating the new address data stored in the memory in order from the element corresponding to the cursor position. A program editing method is provided.

[Effect]

Even when changing multiple address data, there is no need to move the cursor multiple times. Can be changed.

C Example] Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows a hardware block diagram of a program creation device and a PC for implementing the present invention. In the figure, 1 is a program creation device 1, which has a built-in microprocessor (not shown) for display processing. 2 is a display screen of a CRT display device, on which a sequence program is displayed.

3 is a function key, which commands functions such as copying, deleting, and changing. 4 is an operation key.

10 is a PC, and 11 is a microprocessor for controlling the entire PC. An input circuit 12 receives a signal from the outside, converts the signal level, and transfers it to the bus. 13 is an output circuit, which outputs an output signal to the outside. 14 is an interface for the program creation device. PCIO has ROM15 and RAM16 as memory.
is built-in.

Program creation device 1 is connected to bus 17 via communication line 18 and interface 14 . RAM1
6 stores the sequence program 19 etc., and RO
M15 stores a management program 20 for managing sequence program execution processing.

To edit a sequence program, display a ladder diagram on the display screen 2 of the program creation device 1, use the function keys 3 and operation keys 4 to make additions, deletions, changes, etc., and then edit the edited sequence program. RAM1
Transfer to 6.

Next, this embodiment will be explained by showing an example of a ladder diagram.

Display screen 2 showing the ladder diagram in Figures 2 to 4
Here is an example. In Figure 2, X000, Xo, 1, X
O12, X093 and D300.0 are logical relay contacts, and cioo,o is the logical relay coil. The figure shows a state in which the cursor is placed on contact point X0.0. Now, four address data X0.0, X01
1, XO12 and X013 respectively to new address data X6. Assume that you want to change to X7.1, X8.0, and X10.2. To do so, move the cursor to contact X0
．． 0, press operation keys 4 to X6. O,X7
．． 1. X8.0; Key in XIo, 2.

As a result, the above new address data is stored in the memory of the program creation device 1.
key (corresponding to the return key), the new address data stored in memory is assigned in order from the element in the edit buffer that corresponds to the cursor position, and the address data in the edit buffer is updated. do. FIG. 3 shows a display screen that displays the ladder diagram modified in this way.

If only X090 and Xo,2 of the address data in the ladder diagram shown in FIG. 2 are replaced with new address data X6. If you want to change to O,X8.0,
While keeping the cursor on contact x0.0, select X6. O
,,X8. All you have to do is key in O, then press the enter key (return key). Each time you hit a comma, the target to be rewritten moves one by one to the right, but if you hit the next comma without keying in new address data, the original address data for that target will remain as is. Therefore, a ladder diagram having address data as shown in FIG. 4 can be obtained.

In this way, the present invention eliminates the need to move the cursor each time, even when the address data that you want to change is consecutive, or when there is a mixture of address data that you want to change and address data that you want to leave as is. It is possible to easily change multiple address data without having to do so. Typing a comma is essentially equivalent to moving the cursor. That is, each comma shifts the elements in the edit buffer one by one. Typing a comma is much faster than moving the cursor.

In this embodiment, pressing the comma key has the same role as moving the cursor, but instead of pressing the comma key, pressing the key of another specific character may be used.

Further, in this embodiment, the sequence program editing method of the present invention is applied to a stand-alone PC, but it can also be implemented in a PC built into a numerical control device.

[Effects of the invention] Since it is no longer necessary to move the cursor left and right each time when changing a plurality of address data, the time required to edit a sequence program is shortened, and the psychological burden on the operator is also reduced. , it is expected that the overall accuracy of program editing will be improved.

[Brief explanation of the drawing]

Fig. 1 is a hardware block diagram of a program creation device and a PC for implementing the present invention, Fig. 2 is a diagram showing a display screen displaying a ladder diagram before changing address data, Figs. 3 and 4. The figure shows a display screen displaying a ladder diagram after address data has been changed. 1-・・・・・・--・Program creation device 2・
−・・・・・・・・・・−・Display screen 3 of display device・・
-Function key 4 -Operation key 10 -PC (programmable controller) 11--Microprocessor 12-
−−−−1・〜−−−−−・−Input circuit 13・−・〜・
−=−・・・−Output circuit 4−・−・・・−・・−・−・
-Programming device interface 5--...--ROM6--...
········RAM 7·········−Lotus 8−········································································RAM 7·······················−
・・・・・・・・・Sequence program 0・−・−・−
...Management program patent applicant Fanuc Co., Ltd. agent Patent attorney Takeshi Hattori Figure 2

Claims (1)

[Claims] (1) In the editing method of a sequence program in ladder diagram format, by placing the cursor on the first contact of any number of contacts and coils for which you want to change the address data of the ladder diagram displayed on the display screen, selecting an element in the edit buffer corresponding to the position; keying in the new address data from the programming device and storing it in memory; and moving the new address data stored in the memory to the cursor. A sequence program editing method comprising the step of updating address data in the edit buffer by allocating the elements in order starting from the element corresponding to the position.