JPS6247706A - Numerical controller - Google Patents

Abstract

PURPOSE:To eliminate the reformation of an external function, etc. by preparing an external procedure for execution of the read/write operation and the external function for execution of arithmetic and setting the macro variable and the internal arithmetic address. according to said external procedure and function. CONSTITUTION:A numerical controller consists of various peripheral circuits connected a processor 10 via a bus 11 and drives with control the motors 22-24 of each shaft via position control circuits 19-21 for X-Z axes respectively. In this case, a ROM 17 stores an interface table T for an external procedure and an external function and its processing program. While a RAM 18 includes areas 18a and 18b for storage of a subprogram and a microprogram respectively. Thus it is possible to set a correct address by said external procedure to the macrovariable having variable addressed and to perform a correct internal arithmetic by means of said external function at all times despite the system change of the numerical controller. For this purpose, the proper external procedure and external function are set via the table T.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a numerical control device in which at least a part of a program is stored in advance in a processor's machine language, and the program is executed in accordance with the machine language.

2. Description of the Related Art Conventional numerical control devices also utilize arithmetic functions in subprograms, macro programs, etc., functions to control the program flow such as GO-To statements, and functions such as passing arguments. The end user can write the subprogram himself.

It is now possible to create macro programs and improve the functionality of the numerical control device. For example, ATC
These include programs that control the movement of machine tools, such as cycles and measurement cycles, and programs that control the content displayed on a CRT screen, such as interactive input methods. It is certainly possible to realize complex Ia functions using subprograms and macro programs, but one drawback is that subprograms and macro programs cannot be used as main programs (NO command programs given in the form of command tapes, external memory, etc.). Since it is a high-level interpreted language, it takes a long time to execute.

Therefore, in Japanese Patent Application No. 59-171256, the applicant wrote a subprogram or macro program in advance in the processor's machine language and stored it in memory, and
It is possible to determine whether the subprogram or macro program is written in machine language, and if the subprogram or macro program to be called is written in machine language when there is a call instruction, the processing of the processor is written in machine language. A subprogram by changing the processing to execute the subprogram or macro program in the machine language.

We proposed an execution method for numerical control devices that increases the execution speed of macro programs and increases the overall processing speed. However, with this method, the memory addresses of macro variables and address registers are uniformly determined when the control program on the numerical control device side is assembled into machine language or compiled. Therefore, when the hardware or software of the numerical control device is changed, the addresses of these macro variables and address registers for memory also change, so these addresses in the machine language program that has already been created will also have the new correspondence. 4. If these addresses are created in machine language that directly reads/writes, then the program must be created again in machine language. In other words, if the program is created in a higher-level language such as an NG program,
Even if the hardware or software of the numerical control device changes, there is no problem because when translating into machine language during assembly or compilation, the machine language with the corresponding new address is created, but if it is already created in machine language For programs that have been changed, the address before the change remains and will not be changed, so it will be necessary to make a new change in synchronization with the change in the address on the numerical controller side.

Additionally, when operations such as trigonometric functions are required, they are processed in subroutines in higher-level language programs, but those that have already been translated into machine language are incorporated into the main program rather than subroutines. Therefore, if there is a change in the hardware or software on the numerical control side and the address changes, these external functions must be re-created.

Problems to be Solved by the Invention The present invention solves the problems of the techniques already proposed,
When changing the addresses of macro variables or address registers due to changes in the hardware or software on the numerical control side, it is necessary to modify programs stored in advance in machine language or to re-create external functions such as trigonometric functions. The objective is to provide a numerical control device that does not require

Means for solving the problem: For elements whose addresses change, such as macro variables, due to system changes in numerical controllers, various external procedures are provided to specify correct addresses, and various external functions are provided to perform internal calculations such as trigonometric functions. An interface table storing the memory addresses of the eight external procedures and each external function process is provided in the 8 external procedures, and the machine language program is programmed to perform the external procedures and external related processes using the interface table, thereby solving the above problem. Resolved the point.

Even if the system of the numerical controller is changed, the correct address and internal calculation will always be ensured by using the above external procedure for macro variables and other items whose addresses change, and by using the above external function for internal calculations. The machine language program to be executed is set by the above interface table.

Embodiment FIG. 1 is a main part block diagram showing an example of the hardware configuration of the number 1 direct control device of the present invention, in which 10 is a processor, and peripheral circuits include a bus 11 including an address bus, a data bus, and a control bus. are interconnected by. 1
2 is the tape reader, and the main program is pierced with N.
A C tape or subprogram or macro program is for reading the perforated tape 13.

The subprograms or macro programs punched on this tape 13 are written in the NG program language as in the past, or in the PASCAL language.

Written in BASIC language. 14 is a manual data input device (MD I) for controlling various keys;
Various commands etc. to 0 are input from here. 15 is a cassette memory in which the main program is stored; 16 is a C
This is a display device such as RT. 17 is a ROM that contains the NC control program for executing the commands of each block in the NC program, the NC program language, and PASCA.
A compiler that translates L language or BASfC language into machine language is stored. When only the PASCAL language is used as a high-level language, it is sufficient to prepare only a compiler for the PASCAL language. Further, the R○M 17 stores external procedures, an interface table TFjc for external functions, external procedures, and external function processing programs to be described later. A RAM 18 has areas 18a and 18b for storing subprograms and macro programs, and other areas used for calculations, for example. Area 18a is an area where a subprogram or macro program written in NO program word zn is stored.
b is an area where subprograms or macro programs compiled into machine language are stored. Reference numerals 19 to 21 are X-axis, Y-axis, and 2-axis position control circuits, which control the respective X-axis, Y-axis, and 2-axis motors 22 to 24 in response to commands from the processor 10.
to drive.

When registering a subprogram or macro program written in NC program 1gram 8B in the RAM 18 as is, insert the tape 13 on which the subprogram written in NC program 8 words has been punched into the tape reader 12. set, and press the subprogram registration key or macro program registration key of MD114. In addition, when registering machine language subprograms or macro programs in the RAM 18, NC programming language, PASCAL language, BAS
A tape 13 on which a subprogram etc. written in any IC language has been punched is set in the tape reader 12, and the MD
Press the machine language subprogram registration key or machine language macro program registration key of I i 4 to read the subprogram or macro program from the tape reader 12 and read the subprogram or macro program from the ROM1.
7 is translated into machine language, and this is stored in the area 18b of the RAM 18. Furthermore, corresponding to the program number of the stored subprogram or macro program, it is stored that the subprogram or macro program is in machine language.

On the other hand, if you want to register the NC programming language as is,
The subprogram or macro program read from the tape reader 12 is stored as it is in the area 18a of the RAM 18, and it is stored in correspondence with the program number of the stored subprogram etc. that it is based on the NC programming language.

If you want to perform the next process, input the main program number from MD I 14 and start the numerical control.
The processor 10 reads the main program of the program number stored in the cassette memory 15 from the first block thereof, and decodes the instructions contained in the block.

In this case, it is determined whether the called program number is a subprogram or macro program written in machine language, and if it is a subprogram written in machine language, the processing is changed to machine language processing. , area 18 of RAM 18
The subprogram or macro program corresponding to the program number stored in b is executed from the beginning.

On the other hand, the subprogram or macro program to be called is
If it is written in the C programming language, the current processing, that is, the processing in the NC programming language, continues. The above operation is the same as the process proposed in the previous Japanese Patent Application No. 171256/1980, but in this method, when the hardware or software of the numerical control device is changed, subprograms that have already been stored in machine language or When the contents of macro variables and address register addresses for memory in a macro program change, the program must be rewritten in machine language.This invention has improved this point, and the hardware of the numerical control device For macro variables and addresses that change in response to changes in the system, software, etc., external procedures and external functions are provided so that there is no need to change the machine language even if the system changes, and these external procedures and external functions are Processing is performed by providing an interface table that stores the corresponding addresses.

Table 1 Table 2 Table 3-1 Table 3-2 In other words, as an external procedure, for example, an external procedure that defines the functions shown in Table 1 is provided, and as an external function, a second Prepare external functions that define the functions shown in the table, and use these external procedures.

Section 3-1 that defines the address for executing the external function
．． Interface table T as shown in Table 3-2
are set in the ROM 17. When storing subprograms and macro programs in machine language, these subprograms and macro programs are stored in program 1 using the external procedures and functions described above, as shown in Figure 2.
The compiler 2 refers to the interface table below and converts it into a machine language program 3. For example, the data stored in macro variable #6299 is
If NO is indicated and the command is to store at address 1120, if TOOLNO=SYSI (6299) is programmed, the compiler 2 will refer to the interface table shown in Tables 3-1 and 3-2 and create the following machine. Convert to words.

MOV AX, 6299CALL
200D2 MOV Ku 120>, AX This puts the value of macro variable #6299 into register AX, calculates the data stored in macro variable #6299 by processing at address 2o○02 of external function SYS I, and then returns TOOLN.
It will be stored as a machine language program 3 that instructs to store the value of the data at address 120 where O is stored.

Also, when converting subprogram 1, which says to calculate the sine 50 degrees and store the answer at address 100, into a machine language program, compiler 2 reads the address of the external function SIN from the interface table T, and writes the following code. Create a program for a machine.

MOV AX, 50 CALL 20078 MoV <100>, AX, that is, put the angle value 50 in the register AX, and use the external function SI for sine processing.
It is converted into machine language that says to perform a 5in50 calculation at address 20078 of N and store the result at address 100.

If the address specified by the interface table T and the contents of the address do not change even if the hardware or software of the numerical control device changes,
Machine language programs are created so that the addresses of macro variables, address registers, and external processing such as trigonometric functions always point to the correct addresses via the interface table T. There is no need to recreate subprograms or macro programs.

Effects of the Invention As described above, the present invention provides external procedures for reading/writing macro variables and external functions for performing operations such as trigonometric functions. Since the addresses of macro variables and internal calculation addresses are set, even in machine language programs, the correct addresses are always read/written by the addresses specified by the external procedures and functions mentioned above.
Even if the software or hardware of the numerical control device is changed, there is no need to create a machine language program again.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a numerical control device according to an embodiment of the present invention, and FIG. 2 is a diagram illustrating creation of a machine language program according to the present invention. DESCRIPTION OF SYMBOLS 10... Processor, 11... Bus, 13... Tape on which subprogram or macro program is punched, 17... ROM, 18... RAM. (1 idiot) Figure 1 1n Figure 2

Claims (1)

[Claims] In a numerical control device that stores at least a part of a program in advance in a processor's machine language and executes the program in the machine language, various external devices specify correct addresses for elements whose addresses change due to system changes in the numerical control device. Procedures and various external functions that perform internal calculations are provided, and an interface table is provided that stores the memory address of each external procedure and each external function process. A numerical control device that is programmed to perform related processing.