JPH08166805A - Editing system for sequence program - Google Patents

Abstract

PURPOSE: To improve the operation efficiency of editing operation of the editing system by which the sequence program is edited on a programming device. CONSTITUTION: The sequence program 2d to be edited is stored in a memory 2c on the side of a PC 2. On the side of the programming device 1, the sequence program 1a which is read on-line out of the memory 2c on the side of the PC 2 or read out of a floppy disk, etc., is edited by an editing means through operation on a display device 1e and a keyboard 1f and the edited contents are converted by a command converting means 1c into a command. The converted command is transferred to the side of the PC 2 by a transmitting means 1d through a communication line of RS232C, etc. On the PC 2 side, the transferred command is received by a receiving means 2a and a rewriting means 2b rewrites the corresponding part of the sequence program 2d in the memory 2d according to the received command.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a PC (programmable
The present invention relates to a sequence program editing method to be executed by a controller, and more particularly to a sequence program editing method for editing on a programming device.

[0002]

2. Description of the Related Art Conventionally, when a sequence program stored in a memory on the PC side is online edited on the programming device side, the object resulting from the editing operation is transferred to the PC side in subprogram units, and the object on the PC side is transferred. I was trying to rewrite the corresponding part of the memory.

[0003]

However, in such a conventional editing method, when the size of a particular subprogram is modified so as to be larger than the memory size provided in advance, the subprogram is stored. It is necessary to change the address.

FIG. 6 is a diagram showing an example of address change in this conventional technique. For example, start address AAAAA
When an additional correction occurs in the subprogram P001 of Ah and the memory size (AAAAAAh-BBBBBBh) becomes large, the storage address is changed to CCCC.
It is necessary to move after CCh. Then, the CA that calls the subprogram P001 on the main program side
LLU P001 and the like also need to be modified. As a result, the number of subprograms to be transferred increases, and the work efficiency of editing deteriorates.

Further, even if the correction portion is small, in the subprogram unit transfer, it is necessary to transfer the portion not directly related to the correction portion, which is wasteful. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sequence program editing method capable of improving the work efficiency of online editing.

[0006]

According to the present invention, in order to solve the above problems, a PC (programmable controller) is used.
In the editing method of a sequence program to be executed by a program storage means, which is provided on the PC side and stores the sequence program to be edited, and the programming device side, the sequence program is edited by key operation or the like. Editing means, command converting means for converting the edited contents into commands, transfer means for transferring the converted commands to the PC side, and receiving means for receiving the transferred commands on the PC side. And a rewriting unit that rewrites a corresponding portion of the sequence program in the program storage unit according to the received command, and an editing method of the sequence program.

[0007]

The sequence program to be edited is stored in the program storage means on the PC side. On the programming device side, the editing means edits the sequence program by a key operation, etc., the edited contents are converted into commands by the command conversion means, and the converted commands are transferred to the PC side by the transfer means. On the PC side, the receiving means receives the transferred command, and the rewriting means rewrites the corresponding portion of the sequence program in the program storing means in accordance with the received command.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing the concept of the function of this embodiment.
The memory 2c on the PC 2 side stores a sequence program 2d to be edited. On the programming device 1 side, the sequence program 1a read online from the memory 2c on the PC 2 side or read via a floppy disk or the like is displayed on the display device 1e.
The editing means edits the contents in accordance with the operation of the keyboard 1f, and the edited contents are converted into commands by the command converting means 1c. Then, the transfer means 1d transmits the converted command to the PC 2 via the communication line such as RS232C.
Transfer to the side. On the PC2 side, the receiving means 2a receives the transferred command, and according to the received command,
The rewriting means 2b rewrites the corresponding portion of the sequence program 2d in the memory 2c.

FIG. 2 is a block diagram of the hardware of the whole numerical controller (CNC) for implementing the present invention.
The processor 11 is a processor that is the center of control of the entire numerical control device 10, and via the bus 19, the ROM 1
The system program stored in No. 3 is read out, and the control of the numerical controller 10 as a whole is executed according to this system program.

The shared RAM 12 is composed of the CNC 10 and the PMC 2.
This is a RAM for exchanging data with 0, and exchanges data with each other via this shared RAM 12.
At the same time, it stores the data required for access from both sides.

The RAM 14 stores temporary calculation data, display data and the like. For the non-volatile memory 15, a CMOS backed up by a battery, a flash ROM, or the like is used, and a tool correction amount, a pitch error correction amount, a machining program, parameters, and the like are stored.
In addition, the non-volatile memory 15 also stores parameters necessary for the PMC 20 side.

The graphic control circuit 16 converts the current position of each axis, alarms, parameters, digital data such as image data into an image signal and outputs it. This image signal is sent to the display device 31 of the CRT / MDI unit 30 and displayed on the display device 31. The display device 31 has a P
Parameters on the MC 20 side, ladder diagrams, trace data described later, and the like can also be displayed. The data at this time is sent from the PMC 20 via the shared RAM 12.

The interface 17 receives data from the keyboard 32 in the CRT / MDI unit 30,
It is passed to the processor 11. Also, data to the PMC 20 side can be input from the keyboard 32, and the data is sent to the PMC 20 side via the shared RAM 12.

An automatic programming device 40 is connected to the interface 18. The sequence program created by the automatic programming device 40 is read through the interface 18 and read by the PMC 20.
And stored in the non-volatile memory 24. The sequence program in the non-volatile memory 24 is edited by the automatic programming device 40 according to the procedure described later, and the sequence program in the non-volatile memory 24 is rewritten according to the edited data.

In addition to the automatic programming device 40, the interface 18 is also connected to an external device such as a paper tape reader, a paper tape puncher, a paper tape reader / puncher, and a printer, which are not shown. The processing program is read from the paper tape reader. Further, the processing program edited in the numerical controller 10 can be output to the paper tape puncher.

The processor 11 and the shared RAM 12,
Each element such as the ROM 13 is connected by a bus 19. In the figure, the axis control circuit that controls the servo motor, servo amplifier, spindle control circuit, spindle amplifier,
The manual pulse generator interface etc. are omitted.

A PMC (Programmable Machine Controller) 20 is a kind of PC (Programmable Controller) and is built in the numerical controller 10. The PMC 20 has a processor 21 for PMC,
The processor 21 is connected to the shared RAM 12 by the bus 26, and the shared RAM 12 is coupled to the bus 19 of the CNC 10. Further, the ROM 22 is coupled to the bus 26. A management program for controlling the PMC 20 is stored in the ROM 22.

Input / output signals are stored in the RAM 23,
The contents are rewritten as the sequence program is executed. The nonvolatile memory 24 includes a CMOS backed up by a battery and a flash RO.
M or the like is used to store the sequence program created by the automatic programming device 40. The sequence program is generally written in a ladder language, but may be written in a high-level language such as Pascal. The sequence program stored in this non-volatile memory 24 is
In operation, the data is transferred to the RAM 23, and the processor 21
Read and execute the program of AM23. Further, the sequence program can be displayed on the display device 31. In addition to the sequence program, the non-volatile memory 24 stores data to be retained after power-off.

The I / O control circuit 25 is connected to the bus 26, converts the output signal stored in the RAM 23 into a serial signal and sends it to the I / O unit 27. Also, a serial input signal from the I / O unit 27 is converted into a parallel signal and sent to the bus 26. The signal is stored in the RAM 23 by the processor 21. The input / output signals stored in the RAM 23 and the data stored in the non-volatile memory 24 can be displayed on the display device 31 of the CRT / MDI unit 30.

The processor 21 receives a shared R from the CNC 10.
A command signal such as an M function command or a T function command is received via the AM 12, and once stored in the RAM 23, the command is RO
Processing is performed according to the sequence program stored in M22 and output to the I / O unit 27 via the I / O control circuit 25. The hydraulic signal, pneumatic device, and electromagnetic device on the machine side are controlled by this output signal.

Further, the processor 21 receives an input signal such as a machine side limit switch signal from the I / O unit 27 and a signal of an operation switch of the machine operation panel, and temporarily stores the input signal 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 sequence
I / O control circuit 25 processes some signals to the CNC side and other signals as output signals.
Output from the O unit 27 to the machine side.

On the other hand, the sequence program can include instructions for controlling the movement of each axis. When these instructions are read by the processor 21, they are sent to the processor 11 via the shared RAM 12 to control the servo motor. Similarly, the spindle motor and the like can also be controlled by a command from the PMC side.

FIG. 3 is a block diagram of the hardware of the automatic programming device 40. The processor 41 is the RO
The entire automatic programming device 40 is controlled according to the system program stored in M42. RAM4
3 includes internal data, created and edited sequences,
Stores programs, etc.

The graphic control circuit 44 converts the display data from the processor 41 into a display signal, and the display device 4
Send to 5. The display device 45 receives this display signal and displays a screen. As the display device 45, a CRT, a liquid crystal display device or the like is used.

The keyboard 46 is provided with operation keys used for data input, function keys and the like. Data input is also performed by the tablet 47, a mouse (not shown), or the like.

HDD (hard disk drive) 4
Data 8 to be stored such as a created sequence program is stored even after the power is cut off. In addition, the HDD 48
Stores a program for an editing function, which will be described later, read from the floppy disk 49a. FDD (Floppy Disk Drive) 49 is a floppy disk drive.
It is possible to drive the disk 49a to read out a sequence program or the like, or write the created or edited sequence program to the floppy disk 49a.

The created / edited sequence program can be output to the printer / PTP (paper tape puncher) 51. From the interface (INT) 50, the sequence program stored in the nonvolatile memory 24 of the PMC 20 in the numerical controller 10 is read and stored in the RAM 43 or the like. In addition, from the interface 50, the edit state in the automatic programming device 40 is converted into a command and sent to the PMC 20.

Note that each of these components is coupled to the bus 52. Next, a sequence program editing procedure on the automatic programming device 40 and a specific example of its command conversion processing will be described.

FIG. 4 is a diagram showing an example of the flow of editing on the screen of the display device 45 of the automatic programming device 40. First, in step ST1, if the cursor 61 is placed at the position of a specific signal of the ladder program 60 created and displayed in advance, the automatic programming device 40
The position information of this cursor is internally converted into a command. Here, the cursor 61 is the net number N100.
Since it is at the position of the cursor coordinates (1, 1) on the screen,
For example, the command is converted into "100N: (1,1)". This converted command is stored in the RAM 43
Temporarily stored in.

Next, in order to switch the menu display of the software key currently being displayed for symbol input to the display of the command menu, if the menu [COMAND] is specified, the operation is internally performed by the command "C".
Further, when the insertion command menu [INSNET] is designated from the switched menus with the cursor 61 kept at this position, the operation is internally converted into the command “INSNET”. At the same time, on the screen, as shown in step ST2, there is a space between the nets N100 and N101.

In order to input a ladder in this empty area,
When the menu [ESC] is specified, the operation is internally converted into the command "ESC", while the menu display on the screen is switched to the symbol selection menu of the ladder.
If, for example, a contact symbol is selected from this menu and the address "X7.7" is entered with the keyboard 46, the symbol and address are displayed on the screen (step ST3), and the operation is internally commanded. Converted to "RD X7.7".

Furthermore, when a horizontal line, a signal and its address are input on the same net by menu selection, the operations are internally executed by the commands "-,-,-", "WRT".
Converted to Y0.0 ".

In this way, when the input editing for each net is completed, the operator designates, for example, [transfer] provided as a menu. As a result, the command "COM that is internally converted and stored in the RAM 43 during operation is stored.
Interfaces such as "AND" and "INSNET"
And to the PMC 20 via the communication line.

In the PMC20, the CRT of the normal CNC 10 is used.
In the same manner as the editing operation performed by the / MDI unit 30, the transmitted command data is interpreted and the nonvolatile memory 2
Rewrite the corresponding part of the ladder program in 4.

FIG. 5 is a flow chart showing the processing procedure of the processor 41 in the editing operation in the automatic programming device 40. [S1] The editing operation is controlled by key input. [S2] The edited data is converted into a command. [S3] The converted command is temporarily stored in the RAM 43. [S4] It is determined whether or not a transfer command has been issued, and if so, the process proceeds to step S5, and if not, the process returns to step S1. [S5] Command stored in RAM 43 is changed to PMC
Transfer to 20 side.

As described above, in this embodiment, the editing operation in the automatic programming device 40 is converted into a command and the PM is converted.
The command is sent to the C20 side, and the PMC20 side analyzes this command to rewrite the corresponding part of the ladder program in the non-volatile memory 24. Therefore, even if the address is moved due to lack of the memory storage area, the CRT / MDI Similar to the editing operation in the unit 30, it is performed on the PMC 20 side, and it is not necessary for the operator to change the related part. Therefore, working efficiency is improved.

In the present embodiment, the command is transferred in 1-net units, but the present invention is not limited to this, and the commands may be transferred in other timing such as in sub-program units. Further, in the present embodiment, the transfer command is issued by the designation of the software key by the operator, but the processor 41 may judge the timing and transfer automatically.

[0038]

As described above, according to the present invention, the editing operation in the programming device is converted into a command and sent to the PC side, the PC side analyzes the command, and the sequence program in the program storage means is stored. Since the corresponding portion is rewritten, the address movement due to the lack of the memory storage area is also performed on the PC side, and the operator side does not need to change the related portion.
Therefore, working efficiency is improved.

[Brief description of drawings]

FIG. 1 is a diagram showing a concept of functions of the present embodiment.

FIG. 2 is a numerical controller for implementing the present invention (CN
C) A block diagram of the entire hardware.

FIG. 3 is a block diagram of hardware of an automatic programming device.

FIG. 4 is a diagram showing an example of a flow of editing on a screen of a display device of an automatic programming device.

FIG. 5 is a flowchart showing a processing procedure of a processor in an editing operation in the automatic programming device.

FIG. 6 is a diagram showing an example of address change in the conventional technique.

[Explanation of symbols]

 1 programming device 1a sequence program 1b editing means 1c command converting means 1d transfer means 1e display device 1f keyboard 2 PC (programmable controller) 2a receiving means 2b rewriting means 2c memory 2d sequence program 10 CNC 20 PMC 24 non-volatile memory 40 Automatic programming device 41 Processor 43 RAM 45 Display device 46 Keyboard 50 Interface

Claims (3)

[Claims] 1. A PC (programmable controller)
In the method of editing a sequence program to be executed by, the program storage means is provided on the PC side for storing the sequence program to be edited, and the programming device side edits the sequence program by key operation or the like. Editing means, command converting means for converting the edited contents into commands, transfer means for transferring the converted commands to the PC side, and receiving means for receiving the transferred commands on the PC side A rewriting means for rewriting a corresponding portion of the sequence program in the program storing means according to the received command, and a sequence program editing method. 2. The editing method of a sequence program according to claim 1, wherein the transfer means is configured to transfer the command in units of one net of the sequence program. 3. The sequence program editing method according to claim 1, wherein the program storage means is a non-volatile memory.