JPH0235506A - Numerical controller - Google Patents

Abstract

PURPOSE:To increase the safety by storing parameters required for the system determination of an NC device on an IC card and reading and writing the parameters form the NC device. CONSTITUTION:The numerical controller(NC) consists of a numerical control part 1 which incorporates a microcomputer 1-1, a control program memory 2, a control data memory 3, a parameter memory 4, a machining program memory 5, a machine control part 6 which incorporates a machine console panel 6-1, an information storage medium 8, an input device 9, an operation board controller 10, a display device 11, and a keyboard 12. Then the controller is provided with the IC card 13 for storing various parameters for determining the specification and a reader writer device 14 for the IC card 13. Consequently, the parameter values are read out of the IC card 13 and outputted to a control program, which is executed. Consequently, the alteration of the system and the variation of the parameters are facilitated.

Description

[Detailed description of the invention]! ,' i) '11 Industry J Second Benefit 1 Minute Force・7 This invention is a management of parameters that determine the specifications of a numerical control device 55
There are some numerical control devices that have improved the method, especially those that use the above-mentioned Balameke storage medium, use a 71C card, and are equipped with an IC card reader/writer device.

[Conventional technology Fig. 14 is a diagram showing the configuration of the Atsushi control device (hereinafter referred to as the NC device), and (1) is a microcomputer (hereinafter referred to as the CPU) (1-1). )
(2) is a control program memory that stores a control program, (3) is a control data memory that stores various data 8 during execution of the control program, (4)
) is a parameter memory that stores the special data that determines the specifications of the NC device, (5) is a machining program memory that stores a machining program for performing machining using the NC device, and (6) is a This is a machine control unit with a built-in machine operation panel (6-1), which drives the unillustrated motor, solenoid, etc. of the Tf'i machine (7) to process the workpiece. (8)
is an information storage medium, such as a paper tape, in which processing programs and the like are stored. (9) is an input device that reads information from the paper tape (8) 12, a numerical control unit (1)
[via] 7 and manually input each memory. (11) is a display device (
(hereinafter referred to as CRT), (12) is a keyboard,
Various information is displayed and the NC device is operated via the operation board control device (10).

Figure 15 is a horizontal diagram of a general system of a conventional NC device, and the various interfaces are listed below. Please review and write down. In the figure, (1) to <5) are exactly the same as the equipment in Figure 14, and (6-2) is the machine control 1 no! ?
, (f3-3) is the servo control 17F, (9-1) is the paper tape reader I/F (PTRI/F), (9-2) is the paper tape puncher I/F (PTP I/F), (11-1)
) is CI? T I/P, (12-1> is keyboard I/F (KB I/F), (21) is floppy disk/P (FDD I/F), 22) is communication 17F,
It is. And C P built in the numerical control section (1)
U (1-1>, other devices are configured so that they can be connected via the slider.

Next, the operation will be explained using FIG. 14. The numerical control unit (1) has a built-in cPU (1-1),
The control program stored in the control program memory (2) is sequentially processed by the CPU (1-1).In manual operation, the control program is sent from the operator (not shown) to the machine control unit (6). Built-in machine operation panel (6-1)
Through 11. The motor of the machine tool (7) is caused by various operation signals input manually. - Generates various control signals for driving the id, etc. 17 and outputs them to the machine control section (6) to control the τ machine tool (7). In addition, in automatic operation, similarly, the 1. In response to the automatic start signal that is sent, the machining programs stored in advance in the machining program memory 5) are sequentially read out, the commands are analyzed by the control program, and various programs are executed to drive the motors of the machine tool (7). Processes axis control, auxiliary commands, spindle commands, tool commands, etc. for driving llenoid, etc.When executing the above control program, it is necessary to memorize various function failures and constants of machine characteristics H to be controlled. Check the validity of the machining program and modify the commands issued in the machining program by checking the contents of the parameter memory (4) that has been set.The control program generates intermediate data based on the machining program and the parameters. Control data memory (
3) Calculations are performed while the human output is 12 in the register, and the above-mentioned axis $ control, auxiliary command, main axis command, tool command, etc. are processed.

Some of the parameters and processing programs can be stored in an information storage medium (8) such as paper tape, so that they can be stored in a manual device (9).
), the information is read from the information storage medium (8), and the information is transferred to the parameter memory (1) via the numerical control unit (1).
4) or the IMl ball program memory (5).

Second, the operator refers to the CRT (11) and operates the keyboard (12) to access the parameter memory (4) and machining program memory ( 5) can also be entered or changed. These memories are typically random read/write memories (Random) mounted on printed circuit boards.
m^ccess MeIlory (hereinafter referred to as RAM) and read-only memory (Read Only Memory)
It is composed of IC memory such as ROM (hereinafter referred to as ROM).

[Problems to be solved by the invention] The problems to be solved by the first invention are as follows. That is, since the conventional NC device was configured as described above, in order to change the parameters, the parameters stored in the RAM must be changed using a paper tape or keyboard, and the parameters stored in the ROM must be changed using the paper tape or keyboard. Since the printed circuit board on which the existing IC memory is mounted must be replaced, a problem has arisen in which it is desirable to easily and reliably change the parameters of the NC device that has already been shipped from the control device manufacturer.

This first invention was made to solve this problem, and aims to provide a numerical control device that can easily and reliably change the parameters of an NC device shipped from a control device manufacturer.

The problems to be solved by this second invention are as follows. That is, in this first invention, an IC card is used as a storage medium for the parameters of the NC device, and as a result of being equipped with an IC card reader/writer device, if the IC card is inserted into the IC card reader/writer device, the Under these conditions, the IC card is accessed by the numerical control unit. For this reason, for example, in a 3-axis controlled lathe NC device, 2
When an IC card that stores lathe parameters for axis control is inserted, the control program in the NC device attempts to read parameters that are not stored in the IC card when controlling the third axis, resulting in a system error. However, there has been a problem in that problems such as the inability to use desired functions occur.

This second invention was made to solve this problem, and is an NC device that can easily check whether an IC card inserted into an IC card reader/writer device can be used in the NC device. The purpose is to obtain.

The problems to be solved by this third invention are as follows. That is, an IC card is used as a storage medium for the parameters of the NC device, and an IC card reader/writer device is provided. However, after the NC device has read all the parameter information stored in the IC card, it is no longer necessary to use the IC card reader/writer. NC even if no IC card is inserted into the writer device
Since the device operates, there is a problem that one IC card can be used illegally by multiple NC devices.

This third invention was made to solve this problem, and aims to provide an NC device that operates only when the original IC card is properly inserted into the corresponding NC device.

[Means for Solving the Problems] In order to solve the above problems, the NC device according to the first invention uses an IC card reader as a parameter input means.
It is equipped with a writer device and uses an IC card as a parameter storage means so that the parameters stored in the IC card can be read and a control program executed.

In order to solve the above problem, the NC device according to the second invention is provided with a basic parameter memory for storing basic specifications of the NC device, and includes parameters stored in an IC card as a parameter storage means and the above-mentioned basic specifications. The parameters stored in the parameter memory are compared with the parameters stored in the parameter memory using a control program included in the NC device to check consistency.

In order to solve the above problem, the NC device according to the third invention includes an insertion detection means for detecting that an IC card is inserted into the IC card reader/writer device, and checks the output of the insertion detection means. This allows the NC device to operate.

[Operation] In the first invention, the IC card reader/writer device reads from the IC card the verameter value of the specified address requested to be read by the control program, and outputs it to the control program.

In this second invention, the basic parameter memory is Nc
The basic specifications of the NC device, such as the machine to be controlled by the device, the number of control axes, and the control method, are stored in the IC card. Check 5. If there is a mismatch, set an alarm state.

In this third invention, the insertion detection means detects the insertion state of the IC card into the IC card reader/writer device (11).
1. NC device power supply or NC device control blog;
control the behavior of

[Embodiment] FIG. 1 is a block diagram showing an embodiment of the NC device according to the first invention of -3, (1) to (3), (5) to
(12) is exactly the same as the conventional device described above.

(13) is an IC card that stores various parameters that determine the specifications of the NC device, and (14) is an IC card (
This is an IC card reader/writer device that reads data from the IC card (13) and writes data to the IC card (13).

FIG. 2 is a general system configuration diagram of an embodiment of the NC device according to the first invention, and the parameter memory (
IC card reader/writer device (14) instead of 4)
and an IC card (13) are added].

It is the same as FIG. 14 except for the following points.

FIG. 3 is a connection diagram of the pass line and each device in one embodiment of the NC device according to the first invention, and shows the numerical control section (1
) in the CPU (1-1), control block I'' 1 gram memory (2), control data memory (3), machining program memory (5), IC card reader/writer device 2 (14)
and the connection of the address bus and data bus of the IC card (13).

Next, the operation will be explained using FIG. 1. The numerical control unit (i) has a built-in CPU (1-1), and the CPU (1-t) sequentially processes the control program stored in the control program memory (2). During operation, the motors, solenoids, etc. of the machine tool (7) are controlled by various operation signals input from an operator (not shown) via the machine operation panel (6-1) built into the machine control section (6). It generates various control signals for driving the machine and outputs them to the machine control section (6) to control the machine tool (7). In addition, in automatic operation, an automatic start signal inputted by the operator via the machine operation panel (6-1) built into the machine control section (6) is used to pre-store the machining program in the memory (5). It sequentially reads out the 7 grams of the nib and analyzes the commands in the control program to control various axes to drive the motor of the machine tool (A), as well as drive the threads, noids, etc. - auxiliary commands,
Processes spindle commands, tool commands, etc. In order to execute the above control program, parameters indicating the presence or absence of various functions and constants specific to the machine are required. These parameters are stored in the IC card (13), and the parameters are stored in the IC card (13) in advance by the control device manufacturer. ] When the IC card (13) is inserted into the IC card reader/writer device (14), the numerical control unit (1
) in CP [1 (1-1) and electrically connected to the third
The IC card (
13) The parameters stored in CPU (1-1
) is read by The IC card reader/writer device (14) used here is a bus-coupled device, and the memory in the IC card (13) can be accessed in the same way as a Memo J with a built-in NC device. The numerical control unit (1) refers to the contents of the parameters stored in the IC card (13),
Check the validity of the machining program and modify commands in the machining program.

The control program performs calculations based on the above machining program and parameters stored in the above IC card (13) while inputting and outputting intermediate data into the registers of the control data memory (3), and executes calculations based on the above mentioned machining program and the parameters stored in the above mentioned IC card (13). , process tool commands, etc. The parameters stored in the memory in the IC card (13) and the processing program stored in the processing program memory (5) are stored in the information storage medium (8) such as paper tape.
), the information is read from the information storage medium (8) via the input device (9) 17 as in the conventional case, and the above information is sent to the IC card (1) via the numerical control section (1).
3) or machining program memory (5). Also, when the operator refers to the CRT (II) and operates the keyboard (12), the IC is connected via the operation board control device (10) and the numerical control section (1).
Inputs and changes to the card (13) and machining program memory (5) can be made in the same manner as before. In the above explanation, the parameters are read from the IC card (13) each time the control program requires them, but they may be transferred in advance from the IC card (13) to the internal memory of the NC device, such as the control data memory (3). You can leave it there. In particular, serial transfer type IC card reader/writer devices (14
), this means is effective for growth.

FIG. 4 is a block diagram showing an embodiment of the NC device according to the second invention.
4) is exactly the same as the apparatus shown in FIG. 1 above. (2
A) is a control program memory that stores a control program (simply referred to as a control program) including a parameter check program, and (15) is a basic parameter memory that stores basic parameters.

In addition, the control program memory (2a) and basic parameter memory (15) are connected to the CPU (1-1) built in the numerical control unit (1) by a pass line, similar to the equipment shown in FIG. ing.

FIG. 5 is a flowchart of a check program incorporated into a control program according to an embodiment of the NC device according to the second invention.

Next, the operation will be explained using FIGS. 4 and 5. The numerical control unit (1) has a built-in CPU (1-1), and the control program stored in the control program memory (2a) is sequentially processed by the CPU (1-1), thereby controlling the NC device. Achieve functionality. First, in step 1 of Figure 5, the check program starts with the basic parameter memory (1
5) reads the model type indicating the machine to be controlled, such as a drill press, lathe, or milling machine, and then reads the IC in step 2.
The machine type indicating the machine to be controlled is read from the parameters stored in the IC card (13) via the card reader/writer device (14), and it is determined in step 3 whether the two machine types are the same. This time - (Y
es), the check program proceeds to step 5, and the check program reads information such as whether the number of control axes stored in this NC device is 2-axis control or 3-axis control from the basic parameter memory (15), and then proceeds to step 6. The number of control axes is read from the parameters stored in the IC card (13). In step 7, the numbers of both control axes are compared and determined to be the same (Yes).
If so, proceed to step 8, and the check program reads, for example, a coded password for the delivery destination of this NC device from the basic parameter memory (15), and then in step 9, the check program reads the coded password of the delivery destination of this NC device from the basic parameter memory (15), and then in step 9, the check program reads the coded password of the delivery destination of this NC device from the basic parameter memory (15). Read the password from the specified parameter. In step 10, the two passwords are compared and determined, and if they are the same (Yes), the check is completed as normal. If they are not the same in step 3, step 7 or step lO above (No), proceed to step 4 and send the alarm signal and error message to the numerical control unit (1) and the operation board control device (lO).
The data is output to the CRT (12) via [7] and the process ends. If the above check results are normal, in manual operation, the machine tool is controlled by various operation signals input from the operator (not shown) through the machine operation panel (6-1) built into the machine control section (6). It generates various control signals for driving the motor, solenoids, etc. (7), and outputs them to the machine control section (8) to control the machine tool (7). Also,
Similarly, in automatic operation, the operator controls the machine control unit (
6) Input via the machine operation panel (e-i) built into the
The processing program (5) is set in advance by the automatic start signal.
The machining programs stored in the machine are sequentially read out and the commands are analyzed using the control program to control various axes to drive the motor of the machine tool (7), auxiliary commands to drive solenoids, etc., spindle commands, and tools. Processing instructions, etc.
A desired machining is performed by driving the motor, solenoid, etc. of the machine tool (7) via the machine control section (6).

In the above embodiment, the case where the check program is stored in the control program memory (2a) is shown, but if the check program is stored in the memory in the IC card (13), the CPU in the IC card (13) It may be processed with

In addition, if the basic parameter data is guaranteed to be saved, it can be written in a memory other than the basic parameter memory (15), such as the $IJ iH data memory (3). (You can also leave it at 7.

FIG. 6 is a block diagram showing a first embodiment of the NC device according to the third invention, and (1) to (3), (5) 1
14) is exactly the same as the apparatus shown in FIG. (
16) is an insertion detection means, and (17) is a power supply control section.

FIG. 7 is a diagram showing an example of the insertion detection means in the embodiment of FIG.
B) and (1)) are exactly the same as the apparatus shown in FIG. 6 above. (1B) is an information connection section between the IC card (I3) and the IC card reader/writer device (14).

FIG. 8 is a diagram showing an example of the power supply control means in the embodiment of FIG. 6. In the figure, (lG) and (17) are exactly the same as the devices shown in FIGS. 6 and 7.

Next, the operation will be explained using FIGS. 6 to 8.

The numerical control unit (1) has a built-in CPU (!-1), and the control program stored in the control block [J-gram memory (2)] is transferred to the IC card reader/writer device (14).
By referring to the parameters read from the IC card (13) via the CPU (1-1) and sequentially processing them in the CPU (1-1), the machine controller (8) is controlled by the operator (not shown) in manual operation. Various operation signals are input via the machine operation panel (G-1) built into the machine (thereby, the machine tool (
7) generates various control signals for driving the motors, solenoids, etc., and outputs them to the machine control section (6); 7) controls the machine tool (7). In addition, in automatic operation, an automatic start signal is input from the operator via the machine operation panel (6-1) built into the machine control section (6).
Additions stored in the machining program memory (5) in advance
The programs are read out sequentially and the control program memory (2
) The command is analyzed by the control program stored in 17 (11).
13) Input/output intermediate data to the register of the control data memory (3) based on the stored parameters.1. The machine control unit (6) processes various axis commands for driving the motor of the machine tool (7), auxiliary commands for driving solenoids, main axis commands, tool commands, etc.
) 5 to drive the motor, solenoid, etc. of the machine tool (7) 1. perform the desired action. In addition, the operator
Refer to T (11) 17. By operating the keyboard (12), the data is transferred to the IC card (13) and the machining program memory (5) via the operation board control device (1,0) and the numerical control unit (1). Enter information or change information. -h, the insertion detection means (16) are shown in Fig. 7 ha) and (l).
]), the insertion part of the T Cfy-card (13) into the XC card league writer equipment J (14) is checked L1, and an insertion completion signal is output to the power supply control unit (17). FIG. 8 shows an example of the power supply control means in the embodiment of FIG. 6, and in FIG.
The insertion completion signal from is the make contact (hereinafter referred to as A contact)
6 which is supplied to the power supply control section (17) with a contact signal of
The power supply control unit (I7) uses this contact signal to control on/off of a control power supply (for example, AClooV) supplied to the internal power supply device. That is, if the IC card (13) is properly inserted into the IC card reader/writer device (14), the contact circuit is closed and control power is supplied to the power supply device. Furthermore, if the IC card (13) is not properly inserted into the IC card reader/writer device (14), the contact circuit will open and the control power that was being picked up by the power supply will be cut off. ), the insertion completion signal from the insertion detection means (16) is supplied to the power supply control section (17) along with the contact signals of the make contact (A contact) and the break contact (hereinafter referred to as "S contact"). The control unit (17) uses these two types of contact signals to turn on/off the control power supplied to the internal power supply device.In other words, the IC card (13) is connected to the IC card reader/writer device (14)^/regular 1 If the IC card (13) is inserted, the A contact circuit connected in series to the power switch will close, and the power supply No. F5 will be input to the power supply, and an output voltage will be generated in the power supply. I
If it is not properly inserted into the C card reader device (14), the b contact circuit is closed, a power cut signal is input to the power supply device, and the output voltage of the 111 power supply device disappears.

FIG. 9 is a block diagram showing a '2nd embodiment of the NC device according to the 13th invention, in which (1) to (3), (5)
-(I4) and (I6) are exactly the same as the apparatus shown in FIG. 6 above. In the figure, insertion detection means (16)
An insertion completion signal is outputted from the machine control section (6) and manually inputted to the machine control section (6).

The gilO diagram shows the operation control means L in the embodiment shown in FIG.
) is a diagram showing an example, and (6) and (16) are exactly the same as the - position in FIG. 9.

Next, the operations shown in FIGS. 9 and 10 will be explained.

FIG. 1O shows the case where the insertion detection signal from the insertion detection means (16) is supplied via the contact circuit of the a contact, and the IC
The card (13) is an IC card reader/writer device (14).
), the contact circuit closes and outputs an insertion completion signal to the machine control unit (8), and one of the readiness signals input from the machine control unit (6) to the numerical control unit (1). Logically controlled with human power conditions. Also, if the IC card (13) is not properly inserted into the IC card reader/writer device ffi (14), the contact circuit will open and the machine control section (6) will open.
) is turned off, and the preparation completion signal manually inputted from the machine control section (6) to the numerical control section (1) is turned off, thereby stopping the control of the NC device. Therefore, if the IC card (13) is not properly inserted into the IC card reader/writer device (14), the NC
Unable to operate equipment.

FIG. 11 is a block diagram showing a third embodiment of the NC device according to the third invention, (1) to (3), (5) to
(14) and (16) are exactly the same as the apparatus shown in FIG. 6 above. In the figure, an insertion completion signal is output from the insertion detection means (16) and input to the numerical control section (1).

FIG. 12 is a diagram showing an example of the operation control means in the embodiment of FIG. 11, and (1) and (1B) are completely the same as the device of FIG. 1O.

The operations shown in FIGS. 11 and 12 will be explained. FIG. 12 shows the case where the insertion completion detection signal from the insertion detection means (16) is supplied via the contact circuit of the a contact, and the IC card (
13) is properly inserted into the IC card reader/writer device (14), the contact circuit is closed and the numerical control unit (1)
It outputs an insertion completion signal to the numerical control unit (1), which acts on the control program being processed by the numerical control unit (1) to bring it into a controllable state, thereby enabling the control operation of the NC device. Also, IC
From the card (13) to the IC card reader/writer device (1)
4), the contact circuit opens and the insertion completion signal output to the numerical control unit (1) is turned off, and the NC device is controlled by acting on the control program and setting it in an alarm state. Interrupt. Therefore, also in Fig. 11, if the IC card (13) is not properly inserted into the IC card reader/writer device (14),
C. Unable to operate equipment.

Figure 13 shows the operation of the NC device in the embodiment of Figure 11.
It is a flowchart of Ir11 ga operation. In the figure, in step 1, the insertion completion signal input from the insertion detection means (14) to the numerical control unit (1) is read, and in step 2, the insertion completion signal is checked, and if it is on, control is possible and the process ends. do. If the insertion completion signal is off in step 2, an alarm signal is generated in step 3, and if necessary, an error message is output to a display buffer (not shown) in the operation board control device (11) in step 4. Finish the process. The error message stored in the display buffer is displayed on the CRT (11) by the display function of the operation board control device (10). Furthermore, when the alarm signal is set, the alarm processing function inherent in the control program causes the alarm to stop and control of the NC device to be interrupted.

[Effects of the Invention] As described above, according to the first invention, the parameters necessary for determining the system of the NC device are stored in the IC card, and the parameters stored in the IC card are read by the IC card reader. Since we have made it possible to read and write from the NC device via the writer device, system changes and parameter changes can be easily made, and even if the existing NC device is replaced for some reason, it can be done immediately by simply replacing the IC card. Effects such as recovery can be obtained.

Further, according to the second invention, the basic specifications stored in the basic parameter memory inside the NC device and the parameter specifications stored in the IC card can be checked at the time of system startup.
I made it possible to increase the consistency by using the tsuku program, but basically it was possible to prevent δ without using the wrong parameters.
F has the effect of increasing safety.

Also, according to this '3rd t', if the IC card is not inserted into the IC card reader/writer device of the NC device, the
The C% position is set at 1.5 to prevent it from operating, which prevents unauthorized use of the IC card and also ensures reliable operation of the NC device.
There is an effect that can be done.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the NC device according to the first invention, and FIG. 2 is a block diagram showing an embodiment of the NC device according to the first invention.
A general system configuration diagram according to an embodiment of the apparatus, FIG. 3 is a general system configuration diagram according to an embodiment of the NC apparatus according to the first invention.
A connection diagram between the line and each device, FIG. 4 is a block diagram of an embodiment of the NC device according to the second invention, and FIG. 5 is an implementation of the NC device according to the second invention ) A flowchart of a maintenance program incorporated in a control program according to three examples, FIG. 6 is a block diagram showing the first embodiment of the NC device according to the third invention, and FIG. A diagram showing an example of the insertion detection means in the embodiment, FIG. 8 is a diagram showing an example of the lower power supply control stage in the embodiment of FIG. 6, and FIG. 9 is a diagram showing a second embodiment of the NC device according to the third invention. FIG. 10 is a block diagram showing an example (and FIG. 11 is a diagram showing an example of the operation control means in the embodiment of FIG. Block diagram, 1st
2 is a diagram showing an example of the operation control means in the embodiment of FIG. The figure is a block diagram showing the configuration of a conventional NC device, and Figure 1 () is a general system configuration diagram of a conventional NC device. cpU
, (2) , (2a) is the control program memory, (2
-1) is -〈Rameter check program 15, (3) control button memory, (4) is baracita memory, (5) is addition 1-program memory, (6) is machine control section, <6-1
) is the machine operation panel, (6-2) is the machine control INF, (f
3-3) is servo control 1/I', (7) is 1 machine tool,
(8) is an information storage medium, (9) is an input ¥C location, (9-3
) is paper tape reader 1/F, (9-2) fi paper tape punch + I/P, (10) c operation hole FI
II go g i! , (II)i,t CRT , (11
-1) cRT1/F, (12) is the keyboard,
(12-1) is keyboard 1/F - (13) H IC
Card, <14) IC card writer device, (15) basic parameter memory, (1G) insertion detection means, (L7) power supply control unit, (18) IC card (13) ) and IC card reader-like devices (14)
(21) is the information connection part with FDD I#', (2
2) is the communication 1/F. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (3)

[Claims] (1) In a numerical control device that includes a built-in microcomputer and performs numerical control using pre-stored machining programs and control programs, an IC card that stores various parameter information that defines the specifications of the numerical control device; and the IC card. A numerical control system characterized by comprising an IC card reader/writer device that reads information stored in advance in the computer and supplies it to the numerical control device, and also writes information supplied from the numerical control device to the IC card. Device. (2) In a numerical control device that includes a built-in microcomputer and performs numerical control using pre-stored machining programs and control programs, an IC card that stores various parameter information that defines specifications of the numerical control device; and the IC card. an IC card reader/writer device that reads information stored in advance in the computer and supplies it to the numerical control device, and also writes information supplied from the numerical control device to the IC card; and stores basic specifications of the numerical control device. the basic parameter memory inserted into the IC card reader/writer device;
A numerical control device comprising: parameter checking means for comparing information read from a C card and basic specifications read from the basic parameter memory to check consistency thereof. (3) In a numerical control device that includes a built-in microcomputer and performs numerical control using pre-stored machining programs and control programs, an IC card that stores various parameter information that defines the specifications of the numerical control device; and the IC card. an IC card reader/writer device that reads information stored in advance in the computer and supplies it to the numerical control device, and writes information supplied from the numerical control device to the IC card; an insertion detection means for detecting a state in which an IC card is properly inserted and outputting an insertion completion signal; and an insertion detection means for enabling the numerical control device to operate only when the insertion detection means outputs an insertion completion signal. 1. A numerical control device characterized by comprising a power supply control means or an operation control means for performing power supply control or operation control to perform power supply control or operation control.