JPH04335402A - Pc symbol editing system - Google Patents

Abstract

PURPOSE:To easily execute the generation of symbol data of a PMC (programmable machine controller). CONSTITUTION:From initial data stored in a ROM of a PMC, symbol data to which editing is executed is selected (step S1), the selected symbol data is copied in a work area (step S2), the symbol data in the work area is edited (step S3), whether the same symbol data as the edited symbol data exists in a symbol data area or not is inspected (step S4), and unless the same symbol data exists, the edited symbol data is stored in the symbol data area (step S5). Accordingly, it is unnecessary to generate the symbol from the beginning, and it will suffice that only a character-string whose correction is desired is edited, therefore, the symbol can be generated easily.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a PC symbol editing method for editing symbol data of a PMC, and more particularly, a PC symbol editing method for editing symbol data stored in a ROM of a PMC.
Concerning symbol editing methods.

0002

2. Description of the Related Art A PMC built into a numerical control device requires a sequence program corresponding to each machine. Symbol data is used in this sequence program. Symbol data is character string data added to easily recognize what kind of operation and role a signal has. Therefore, symbol data and signals have a one-to-one correspondence. Therefore, it is necessary to give symbol data a different name for each signal.

Conventionally, an operator has created symbol data corresponding to each signal and used it in a sequence program. Generally, symbol data is mostly the same when the numerical control device incorporating the PMC is the same, and in most cases only a part of the input/output on the machine side is changed.

0004

[Problems to be Solved by the Invention] Therefore, even if the symbol data is slightly different, the operator has to create all the symbol data from the beginning. However, it is complicated and requires a lot of effort for the operator to create symbol data for all signals from the beginning. Furthermore, there is a problem in that if the created symbol data is the same as other symbol data, the sequence program will not operate properly.

[0005] The present invention has been made in view of the above points, and it is an object of the present invention to provide a PC symbol editing method that allows easy creation of PMC symbol data.

[0006]

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a PC symbol editing method for editing symbol data in a sequence program of a PMC, in which initial symbol data stored in a ROM of the PMC is edited. Select the symbol data to be edited from among them, copy the selected symbol data to the work area, edit the symbol data in the work area, and create a symbol with the same symbol data as the edited symbol data. Provided is a PC symbol editing method, which checks whether or not the same symbol data exists in a data area, and stores the edited symbol data in the symbol data area if the same symbol data does not exist. .

[0007]

[Operation] Symbol data to be edited is selected from among the symbol initial data stored in the ROM of the PMC, the selected symbol data is copied to the work area, and the symbol data in the work area is edited. If the same symbol data as the edited symbol data does not exist,
Store the edited symbol data in the symbol data area.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a partial block diagram of a numerical control device (CNC) incorporating a PMC for implementing the present invention. The PMC 20 is built into the numerical control device 10. The processor 11 is a central processor for controlling the entire numerical control device 10. Also, via bus 19, ROM1
The system program stored in 3 is read out, and the entire numerical control device 10 is controlled in accordance with this system program. The shared RAM 12 is connected to the numerical control device 10 and P
A RAM for exchanging data with the MC20,
Store data that needs to be accessed by both parties at the same time.

[0009] The RAM 14 stores temporary calculation data, display data, etc. The CMOS 15 is configured as a nonvolatile memory, and stores tool correction amounts, pitch error correction amounts, machining programs, parameters, and the like. CMOS
15 is a nonvolatile memory, which is backed up by a battery (not shown). For this reason, the numerical control device 10
Even if the power is turned off, the data stored in the CMOS 15 is retained as is. Note that the data stored in the CMOS 15 is parameters etc. required on the PMC 20 side.

The graphic control circuit 16 converts digital data such as the current position of each axis, alarms, parameters, image data, etc. into image signals and outputs the image signals. This image signal is sent to the display device 31 of the CRT/MDI unit 30,
It is displayed on the display device 31. Interface 17 is C
Data is received from the keyboard 32 in the RT/MDI unit 30 and passed to the processor 11.

The interface 18 is an interface for external devices, and is connected to external devices 40 such as a paper tape reader, a paper tape puncher, a paper tape reader/puncher, a printer, and an external storage device. External storage devices include hard disks, magneto-optical disks, floppy disks, and the like. A machining program can be input from an external storage device and a paper tape reader, and a machining program edited within the numerical control device 10 can be output to an external storage device and a paper tape puncher.

[0012] Processor 11 and shared RAM 12, ROM
Elements such as 13 are connected by a bus 19. Note that the axis control circuit for controlling the servo motor, etc., the servo amplifier, the spindle control circuit, the spindle amplifier, the manual pulse generator interface, etc. are omitted in the figure.

[0013] The PMC 20 includes a processor 21 for PMC.
There is a shared RA
The shared RAM 12 is connected to the numerical control device 10.
bus 19. Also, bus 25 has RO
M22a and ROM22b are combined. ROM22
A management program for managing the execution of sequence programs is stored in a. Symbol initial data is stored in the ROM 22b. Furthermore, instead of the ROM 22b, an external storage device storing symbol initial data may be connected to the interface 18. The reason for doing this is to allow symbol initial data to be easily changed.

Further, a RAM 23 is coupled to the bus 25, and the RAM 23 is used as a work RAM necessary for the operation of the PMC 20. Further, symbol data and the like from the program creation device may be transferred and edited within the PMC 20 . The display device 31 of the CRT/MDI unit 30 is used to edit symbol data.
, keyboard 32 is used. The RAM 23 also stores input/output signal data. The I/O control circuit 24 is connected to the bus 25, converts the output signal stored in the RAM 23 into a serial signal, and sends the serial signal to the I/O unit 26. It also converts the serial input signal from the I/O unit 26 into a parallel signal and sends it to the bus 25. The signal is stored in RAM 23 by processor 21.

The processor 21 receives command signals such as M function commands and T function commands from the numerical control device 10 via the shared RAM 12, stores them once in the RAM 23, and processes the commands according to the management program stored in the ROM 22a. and the I/O unit 2 via the I/O control circuit 24.
Output to 6. This output signal controls hydraulic equipment, pneumatic equipment, and electromagnetic equipment on the machine side.

The processor 21 also has an I/O unit 2.
Input signals such as a limit switch signal on the machine side and a signal from an operation switch on a machine operation panel are received from 6, and these input signals are once stored in the RAM 23. Input signals that do not need to be processed by the PMC 20 are sent to the processor 11 via the shared RAM 12. Other signals are processed by the sequence program, some signals are sent to the numerical control device side, and other signals are sent as output signals from the I/O unit 26 to the machine side via the I/O control circuit 24. Output. RAM
The symbol data stored in 23 or ROM 22b can be displayed on the display device 31 of the CRT/MDI unit 30 and modified using the keyboard 32.

FIG. 1 is a flowchart showing the PC symbol editing method of the present invention. [S1] The operator selects symbol data to be edited from among the initial symbol data stored in the ROM of the PMC. [S2] Selected symbol initial data is PMC RO
Copied from M to the work area. [S3] The operator edits the symbol data copied to the work area. [S4] It is checked whether the same symbol data as the edited symbol data exists in the symbol data area. If there is no identical symbol data, the process proceeds to step S5, and if there is identical symbol data, an error message is displayed and the process proceeds to step S3. [S5] Store the edited symbol data from the work area to the symbol data area. Therefore, the operator edits only the necessary number and necessary character strings of a part of the symbol data stored in the ROM of the PMC and stores them in the symbol data area.
Symbol data can be easily created.

FIG. 3 is a diagram showing the area division of the RAM. RAM 23 is divided into four areas in order to implement the present invention. These four areas are system data area 5.
1. Symbol data area 52, comment data area 53
and a work area 54.

The system data area 51 stores various data for executing a management program, a symbol start address 51a, a symbol storage number 51b, and the like. The symbol data area 5 is located at the symbol start address 51a.
The first address of 2 is stored. Further, the total number of symbol data stored in the symbol data area 52 is stored in the symbol storage number 51b. The symbol data area 52 stores symbol data information, which will be described later. Comment data regarding symbol data is stored in the comment data area 53. This comment data is character string information that allows the operator to easily understand which symbol has what meaning. The work area 54 stores symbol initial data and the like for editing symbol data.

FIG. 4 is a diagram showing the contents of symbol data information. Symbol data information 60 is signal address 6
1. Symbol data 62 and comment start address 6
It has 3. The signal address 61 is the address of the signal to be controlled. Symbol data 62 is character string data of symbols represented in a ladder diagram or the like. The comment start address 63 stores the start address in the comment data area in which comment data related to the symbol data 62 is stored. Note that the symbol data information 60 is stored in the symbol data area 52 in FIG. 3.

FIGS. 5 to 8 are diagrams showing examples of symbol data editing screens. FIG. 5 is an example of a screen when symbol initial data selection is started. The figure shows a CRT/M
A portion of the DI unit 30 is shown, and a display device 31
, a data input key 71, a cursor movement key 72, an edit command key 73, and soft keys 74a, 74b, and 74c. The data input key 71 is a key for inputting character strings of symbols and the like. The cursor movement key 72 is a key for moving a cursor on the screen of the display device 31. The edit command key 73 is a key for commanding insertion, deletion, replacement, etc. when editing a character string of a symbol. Soft keys 74a, 74b, 74c are displayed on the display device 31.
This key is used to command the contents displayed at the bottom of the screen. Note that these configurations are common to FIGS. 5 to 8. In FIG. 5, the operator moves the cursor 81 to the signal address he wishes to edit using the cursor movement key 72.
move. Next, the user presses the soft key 74b which instructs to start range selection (COPY).

FIG. 6 is an example of a screen when symbol initial data selection is completed. Start selecting the above range (CO
When the soft key 74b that commands PY) is pressed, the
The screen changes to At this time, the signal address data (X
0.0) is inverted. At the same time, another cursor 82 appears to determine the end of the selection range. Therefore,
Soft key 7 for moving the cursor 82 using the cursor movement key 72 and commanding the end of range selection (UNTIL)
Press 4b. Similar to the start of range selection, the signal address data (X3.0) is inverted. As a result, P in Fig. 2
The editing range of the initial symbol data in the ROM 22b of the MC 20 is determined. If you want to cancel the range selection, soft key 7 instructs the cancellation (CANCEL).
Press 4c. Then, all previous range selection operations are discarded, and the state returns to the state before range selection was started. Note that these range selection operations correspond to step S1 in FIG.

FIG. 7 shows an example of the screen when symbol data editing is completed. End of range selection above (UNTI
When the soft key 74b for commanding L) is pressed, the screen changes to the one shown in FIG. On the screen shown in FIG. 7, a cursor 83 for editing character strings appears, allowing the symbol character string to be edited character by character. For editing, input characters using the data input key 71, then use the cursor movement key 72 and the edit command key 7.
3 performs auxiliary editing operations. Further, instead of the edit command key 73, insertion, deletion, etc. can also be performed using a soft key 74a for commanding mode switching (MODE).

When all editing is completed, the operator presses the soft key 74b to command the end of editing (EXEC). If you want to discard the edit, use the discard (CAN)
CEL) is pressed. Then,
All previous editing operations are discarded and the state returns to the state before editing. Note that these operations correspond to step S3 in FIG.

When the soft key 74b commanding the end of editing (EXEC) is pressed, it is checked whether the symbol data of the edited signal address matches the symbol data already stored in the symbol data area 52 of FIG. Inspect whether or not. The operation for performing this inspection is step S4 in FIG.
corresponds to If a match does not exist, editing of the symbol data is finished. At this time, the edited symbol data is the symbol data area 5 in FIG.
2. The symbol data storage operation corresponds to step S5 in FIG.

FIG. 8 is an example of a screen displayed when a symbol data double definition error occurs. Symbol data area 5 of FIG. 3 in which symbol data identical to the symbol data of the signal address edited at the end of the above editing has already been stored.
2, the screen changes to the one shown in FIG. At this time, an error message is displayed at the bottom of the screen of the display device 31 to alert the operator. The figure shows signal addresses (X1.
This indicates that an error occurred because the symbol (RRW) of 0) was defined twice. Further, the operator must follow the error message and re-edit the symbol in which the error is indicated.

In this embodiment, the operator selects a part of the symbol data stored in the ROM of the PMC, and edits only the necessary character strings of the selected symbol data. Since the edited symbol data is automatically stored in the symbol data area, symbol data can be easily created.

In the above explanation, the symbol data to be edited is the initial symbol data stored in the ROM of the PMC. However, before editing, the initial symbol data is copied from the ROM of the PMC to the symbol data area, and the symbol data is It may also be symbol data stored in an area. Alternatively, symbol initial data may be stored in an external storage device, and the symbol data stored in the external storage device may be edited. Before editing, symbol initial data may be copied from the external storage device to the symbol data area, and the symbol data stored in the symbol data area may be the subject of editing. Furthermore, although editing was done with a CRT/MDI unit,
The program creation device connected to the interface 27 may also be used.

[0029]

[Effects of the Invention] As explained above, in the present invention, PMC
Since symbol initial data stored in the ROM is selected, necessary character strings are edited, and stored in the symbol data area, symbol data can be easily created.

[Brief explanation of drawings]

FIG. 1 is a flowchart showing a PC symbol editing method of the present invention.

FIG. 2 is a partial block diagram of a numerical control device incorporating a PMC for implementing the present invention.

FIG. 3 is a diagram showing area divisions of RAM.

FIG. 4 is a diagram showing the contents of symbol data information.

FIG. 5 is a diagram showing a screen at the time of starting selection of symbol initial data.

FIG. 6 is a diagram showing a screen when symbol initial data selection is completed.

FIG. 7 is a diagram showing a screen when editing of symbol data is completed.

FIG. 8 is a diagram showing a screen when a symbol data double definition error occurs.

[Explanation of symbols]

10 Numerical control device (CNC) 11 Processor 12 Shared RAM 20 PMC (Programmable Machine Controller) 21 Processor 22a ROM (Management program) 22b ROM (Symbol initial data) 23
RAM 24 I/O control circuit 26 I/O unit

Claims (4)

[Claims] [Claim 1] A symbol (
In the PC symbol editing method for editing data (signal name), the symbol data to be edited is selected from among the symbol initial data stored in the ROM of the PMC, and the selected symbol data is copied to a work area. , edits the symbol data in the work area, checks whether the same symbol data as the edited symbol data exists in the symbol data area, and if the same symbol data does not exist, the edited symbol data 1. A PC symbol editing method, characterized in that symbol data that has been created is stored in the symbol data area. 2. In a PC symbol editing method for editing symbol data in a sequence program of a PMC, all of the symbol initial data stored in a ROM of the PMC is stored in advance in the symbol data area, and the symbol Select symbol data to be edited from among the symbol initial data stored in the data area, copy the selected symbol data to the work area, edit the symbol data in the work area, and select the edited symbol data. It is checked whether symbol data identical to the symbol data exists in the symbol data area, and if the same symbol data does not exist, the edited symbol data is replaced with the original symbol data that was copied. A PC symbol editing method characterized by storing in an area. 3. The symbol initial data is stored in an external storage device.
PC symbol editing method described. 4. The PC symbol editing method according to claim 1, wherein the symbol data is edited by a program creation device.