JP2010146329A - Numerical controller having multiple function keys - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To dynamically switch a window to receive pressing information of a general purpose key according to the change of the arrangement and size of the window when a plurality of application software windows are displayed. <P>SOLUTION: The numerical controller having the multiple function keys has: a definition data file 5 for storing definition data defining the operation of which window the general purpose key 43 is to perform for each image layout; an image list file 4 wherein the image layout and the definition data are made to correspond; and key input monitoring software 1 for monitoring the change of the displayed image layout, selecting and reading the definition data of the image layout from the definition data file 5 when it is changed, monitoring the pressing of the general purpose key 43, and advising that the function key is pressed to the specified window on the basis of the definition data, thereby performing the operation of the application in accordance with the advised function key. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a numerical control device having a plurality of function keys.

  In a numerical controller, image information generated by the numerical controller is displayed on a display screen of a display included in the numerical controller. The numerical control device is provided with display software for displaying information to be displayed resulting from the essential functions of the numerical control device. For example, displays generated from the original functions of the numerical control device such as a screen that displays the current position of each control axis of the machine controlled by the numerical control device, a machining program editing screen, a program operation check screen, and a machine operation screen It has display software that displays information in a window format.

  In this numerical control device, a set of functions is displayed as a menu on the display screen of the display device, and a desired function is displayed from the menu by a function key (hereinafter referred to as “general-purpose key”), numeric keys, arrow keys, etc. Many of them are made to be selected.

  And in a numerical control device equipped with general-purpose keys around the display screen of the display device, when multiple windows are displayed, the key input monitoring software notifies the focused window of general-purpose key press information. (See FIG. 19). The focused window is a window that is selected to accept input data.

  Patent Document 1 discloses a technique for delivering a key event in response to a request for a window in which key events are to be received preferentially in order to notify pressing information to a window that is not in focus.

  In Patent Document 2, the keyboard is divided into a plurality of blocks, the divided blocks are assigned to arbitrary windows, and when a key is input, data is input to the window belonging to the divided block to which the key belongs. Discloses a technique of an input control device capable of inputting data even in an inactive window.

International Publication WO 2004/034257 Japanese Utility Model Publication No. 3-86447

  The correspondence between the general-purpose keys and the windows for notifying the pressed information is built into the key input monitoring software and cannot be changed in the middle according to the change in the screen layout. For this reason, even if the screen layout is changed, the window for notifying general-purpose key press information is not dynamically changed, and the operator cannot intuitively operate the general-purpose keys.

  This will be described with reference to FIG. 19 and FIG. A window 1 and a window 2 are displayed on the display screen of the display shown in FIG. Software keys are displayed at the bottom and both sides of the display screen. Various function commands are switched and displayed on the software key corresponding to the contents of the screen. Selection of each function command is performed by general-purpose keys provided on the lower side and both sides of the display screen.

  In the screen layout shown in FIG. 19, general-purpose keys F22 to F24 and F34 to F36 correspond to window 1, and general-purpose keys F1 to F12, F13 to F21, and F25 to F33 correspond to window 2. Here, as shown in FIG. 20, when the window 2 is enlarged (FIG. 20A) or the window 1 is enlarged (FIG. 20B), those windows 1 are displayed on the display screen of the prior art. , 2 could not change the correspondence of the general-purpose keys according to the enlargement / reduction. For this reason, it has been difficult for an operator to perform intuitive general-purpose key input operations.

  Therefore, an object of the present invention is to display a plurality of application software windows in a numerical control device having general-purpose function keys around the display screen of the display unit, depending on the arrangement and size of the windows, It is an object of the present invention to provide a numerical control device capable of dynamically switching a window for receiving general key press information.

  The invention according to claim 1 of the present application has a display device that arranges and displays a plurality of application software windows on the screen according to the screen layout, and a plurality of function keys that operate the applications displayed in the windows. In the numerical controller, definition data storage means for storing definition data defining which window the function key performs for each screen layout, and screen list data in which the screen layout and the definition data are associated with each other Screen list data storage means for storing and monitoring a change in the screen layout displayed on the screen, and referring to the screen list data when there is a change in the screen layout, and selecting based on the screen list data The definition data of the defined screen layout A key input monitoring means for selecting and reading from the means, monitoring the pressing of the plurality of function keys, and notifying the window that the function key has been pressed on a window designated based on the definition data; And a numerical control device having a plurality of function keys, wherein the operation of the application is performed in accordance with the notified function keys.

  The invention according to claim 2 monitors a change in the window size of the application having the selected screen layout, and updates definition data read in accordance with the window size when the window size is changed. The numerical control device having a plurality of function keys according to claim 1, further comprising an updating unit.

  According to the present invention, when a plurality of windows are displayed, a general-purpose function around the display screen of the display unit can dynamically switch a window that receives general-purpose key press information according to a change in the arrangement or size of the window. A numerical control device having a key can be provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic block diagram of a numerical controller that implements the algorithm of the present invention. The CPU 11 is a processor that controls the numerical controller 10 as a whole. The CPU 11 inputs, via the bus 23, a memory 12 composed of ROM, RAM, nonvolatile memory, etc., a display 14 composed of a PMC (programmable machine controller) 13, a liquid crystal display, and various commands and data. Input device 15, interface 16 connected to an external storage medium, a host computer, etc., each axis control circuit 17 of the machine tool (in the figure, an example having five axes is shown), spindle control circuit 20 It is connected. The input device 15 includes a general-purpose key 43 as shown in FIG.

  The memory 12 stores a machining program created using the input device 15 or a machining program input from the outside via the interface 16, and the processor (CPU) 11 reads and executes the machining program. Then, a spindle speed command is output to the spindle control circuit 20 and a movement command is output to each axis control circuit 17 at predetermined intervals.

  The memory 12 stores display software for displaying display data unique to the numerical control device as an original function of the numerical control device 10. The display software has a function to divide the display screen and display it in a window format, such as a screen that displays the current position of each feed axis, a machining program edit screen, a program operation check screen, a parameter screen, and an alarm message screen. I have. Conventionally, the display software is software for displaying a screen of a numerical control device. Further, the memory 12 also stores key input monitoring software 1 for monitoring the pressing of the general purpose key 43 arranged on the display 14 according to the present invention.

  Further, the memory 12 has a RAM area provided for execution of the machining program or processing by display software. In the RAM area, window layout information, display window information including window size, and the like are stored as the window management file 2 and referred to by the display software. Further, the memory 12 has a memory area managed by the key input monitoring software, and in this memory area, a key press information notification definition file 3 (definition file will be described later) that defines the correspondence between the general purpose key 43 and the window. ) Is stored.

  The key input monitoring software 1 according to the present invention constantly monitors changes in the screen layout displayed on the display screen of the display device 14 and the input of the general-purpose key, and notifies the specified window of the press information of the general-purpose key. It is. The display software prepares a screen change flag FA, and sets the screen change flag FA to 1 when the screen layout is automatically changed by an internal signal of the numerical controller. The key input monitoring software 1 monitors the state of the screen change flag FA for each control cycle. Note that the screen change flag FA once referred to is reset to 0 (zero).

  When detecting that the screen layout has been changed, the key input monitoring software 1 reads the screen layout information from the display window information of the window management file 2 stored in the memory 12. The key input monitoring software 1 switches the correspondence relationship between general-purpose keys and windows based on the screen layout information. Switching of the correspondence relationship between the general-purpose key and the window will be described later with reference to FIG.

  The PMC 13 is a sequence program built in the numerical controller 10 and outputs a signal to an auxiliary device of a processing machine as an object to be controlled, or inputs and controls a signal from the auxiliary device. Further, it receives signals from various switches on the operation panel provided in the main body of the processing machine controlled by the numerical control device, performs necessary signal processing, and then passes them to the CPU 11.

  The axis control circuit 17 for each axis (5 axes) receives a movement command amount interpolated and distributed to each axis from the CPU 11 and outputs a command for each axis to the servo amplifier 18. In response to this command, the servo amplifier 18 drives the servo motor 19 for each axis of the machine tool. The servo motor 19 for each axis has a built-in position / speed detector, and feeds back a position / speed feedback signal from the position / speed detector to the axis control circuit 17 to perform position / speed feedback control. In FIG. 1, description of position / speed feedback is omitted.

  The spindle control circuit 20 receives a spindle rotation command and outputs a spindle speed signal to the spindle amplifier 21. The spindle amplifier 21 receives the spindle speed signal and rotates the spindle motor 22 at the commanded rotational speed. Further, the rotational speed of the spindle is detected by a position coder (not shown) and fed back to the spindle control circuit 20 for speed control.

  FIG. 2 is an external view of the front of the LCD / MDI unit 40. The LCD / MDI unit 40 is mainly composed of a display 14 and an input device 15 such as a keyboard. Software keys 42 are displayed at the bottom and both sides of the display screen 41 of the display 14. Various function commands are switched and displayed on the software key 42 according to the contents of the screen. Selection of each function command is performed by a general-purpose key 43 provided below the display screen 41 and on both sides. Character keys 44 and numeric keys 45 are provided on the input device 15. The page switching key 46 is used for switching the display page. The cursor key 47 is used for moving the cursor on the display screen 41. The edit key 48 includes a change key, an insert key, a delete key, an input key, a cancel key, and an end key. The general purpose key 43 also belongs to the input device 15.

  In the embodiment of the present invention, even when the screen layout displayed on the display screen of the display device 14 is changed, a window for notifying general-purpose key press information is dynamically changed, and an intuitive key operation is performed. This is different from the conventional numerical control device in that a configuration that enables this is added.

FIG. 3 is a schematic functional block diagram of the present invention that enables the corresponding general-purpose key to be changed along with the screen layout.
The key input monitoring software 1 refers to the window management file 2 and the screen list file 4 when the numerical control device 10 is activated, determines a definition file 5 corresponding to the window management file 2, and a memory area (memory 12) managed by the key input monitoring software 1. In the RAM area), the window 6 for notifying the general key press information is specified. You may make it select the normal layout of the screen list file 4 selected as initial setting at the time of starting.

  Further, the key input monitoring software 1 monitors a change in the screen layout, which is one of display window information stored in the window management file 2, and based on the screen list file 4 when the screen layout is changed. The selected definition file 5 is read, the key pressing information notification definition file 3 is updated, the depression of the general key 43 is monitored, and the window 6 designated based on the updated key pressing information notification definition file 3 is displayed. Notifies that a general-purpose key has been pressed. Then, the application software of the notified window is operated according to the notified general-purpose key.

  Here, the screen list file 4 and the definition file may be stored in an external storage device (not shown) of the numerical controller 10. The definition file 5 may be read into the RAM area of the memory 12 by referring to the screen list file 4 stored in the external storage device when starting the numerical control device or updating the screen layout.

  Next, it will be described with reference to the display screen that the corresponding general-purpose key is changed in accordance with the change in the screen layout of the display screen in the present invention. FIG. 4 is a diagram for explaining changing the correspondence of general-purpose keys in accordance with the screen layout in the present invention. A window 1 in FIG. 4A is a window of the application software 1, and a window 2 is a window of the application software 2. Thus, the window corresponding to each application software is displayed on the display screen. Moreover, F1-F36 of Fig.4 (a) has shown the general purpose key. In the display screen, window 1 and window 2 are displayed by dividing the display screen. General-purpose keys F22 to F24 and F34 to F36 correspond to the window 1. Window 2 corresponds to general-purpose keys F1 to F21 and F25 to F33.

  When the window 1 is enlarged as shown in FIG. 4B, the general keys corresponding to the window 1 become F16 to F24 and F28 to F36, and the general keys corresponding to the window 2 are F1 to F15 and F25 to F27. It becomes. As shown in FIGS. 4A and 4B, the general-purpose keys corresponding to the windows are changed in accordance with the area occupied by the windows 1 and 2 in the screen display.

  Therefore, the number of general-purpose keys for operating each application software corresponding to each window changes as the screen layout is changed. In other words, the number of general-purpose keys changes in accordance with the screen layout. In other words, the window for notifying general-purpose key press information is dynamically changed, and intuitive key operations are possible.

Next, in order to make it easier to understand that it is possible to input intuitive general-purpose keys more specifically, screen example 1 in which a machine operation window and an NC information window are arranged and the NC information window is enlarged, and a machine operation window are displayed. Example 2 for enlarging the image will be described. In the present invention, as shown in screen example 1, screen example 2, and screen example 3 to be described later, the display screen of the display device is divided to display a plurality of windows.
<Screen example 1>
FIG. 5 shows an example in which window 1 shown in FIG. 4 is a machine operation window and window 2 is an NC information display window. FIG. 5B is an example of a screen layout in which the display size of the NC information display window is enlarged and the display size of the machine operation window is reduced in order to facilitate the NC program editing operation. In the state of FIG. 5A, general-purpose keys F22 to F24 and general-purpose keys F34 to F36 correspond to the machine operation window, and general-purpose keys F1 to F21 and general-purpose keys F25 to F33 correspond to the NC information display window. In the state shown in FIG. 5B, general-purpose keys F24 and F36 correspond to the machine operation window, and general-purpose keys F1 to F23 and general-purpose keys F25 to F35 correspond to the NC information display window.

  It will be described with reference to FIG. 6 that the correspondence relationship between the general-purpose keys is changed as shown in FIG. Reference numeral 4 denotes a screen list file, which is a file for setting and storing a definition file corresponding to the screen layout in advance. The definition files 5 (1) and 5 (2) are files for setting and storing in advance the correspondence between the screen layout and the general-purpose keys.

  In the screen list file 4, a normal layout, a program editing layout, and a manual operation layout are shown as examples of the screen layout. The definition file 1 corresponds to the normal layout, the definition file 2 corresponds to the layout for program editing, and the definition file 3 corresponds to the manual operation layout.

  The definition file 5 (1) is a definition file for setting the correspondence relationship of general-purpose keys in a screen layout in which a machine operation window is displayed in the window 1 and an NC information display window is displayed in the window 2. In the definition file 1, general-purpose keys F22 to F24 and general-purpose keys F34 to F36 correspond to the machine operation window of window 1, and general-purpose keys F1 to F21 for NC information display window of window 2, And general purpose key F25-general purpose key F33 respond | corresponds.

  In the definition file 5 (2), the general operation key F24 and the general purpose key F36 correspond to the machine operation window of the window 1, and the general purpose key F1 to the general purpose key F23 and the general purpose key F25 to the general purpose key F35 correspond to the window 2. To do.

  The definition file 1 indicated by reference numeral 5 (1) is a file used for setting the correspondence relationship between the windows in the state shown in FIG. 5A and the general-purpose keys. If the layout of the display screen is changed, the key input monitoring software described above refers to the screen list file 4 and reads the definition file 5 (2) corresponding to the NC program editing layout. The correspondence relationship between the general-purpose key and each window is changed as defined in the definition file 5 (2).

Then, as shown in FIG. 7, the NC program can be easily edited by increasing the number of general-purpose keys that can be used in accordance with the size of the enlarged NC information display window. As is apparent from FIG. 7, since the window corresponds to the window in which the general-purpose keys are displayed, the worker can perform an intuitive input operation.
<Screen example 2>
FIG. 8 shows an example in which window 1 shown in FIG. 4 is a machine operation window and window 2 is an NC information display window. FIG. 8 is an example in which the machine operation window is enlarged by reducing the display size of the NC information display window in the screen layout in order to perform the machine operation using the general-purpose keys.

  With reference to FIG. 9, it will be described that the correspondence relationship of the general-purpose keys is changed as shown in FIG. The definition file 1 indicated by reference numeral 5 (1) is a file used for setting the correspondence between the window in the state shown in FIG. 9A and the general-purpose keys. Here, when the layout of the display screen is changed, the key input monitoring software described above refers to the screen list file 4 and reads the definition file 5 (3) corresponding to the NC program editing layout. The correspondence relationship between the general-purpose key and each window is changed as defined in the definition file 5 (3).

  The definition file 1 and screen list file 4 shown in FIG. 9 and the definition file 3 shown in FIG. 5 (3) will be described. The definition file 1 and the screen list file 4 are as shown in FIG. The definition file 3 is a file for setting a general key whose screen layout corresponds to the manual operation layout of the screen list file 4. In the definition file 3, the machine operation window of window 1 corresponds to general-purpose keys F16 to F24 and general-purpose keys F28 to F36, and the NC information display window of window 2 corresponds to general-purpose keys F1 to F15 and general-purpose keys. Key F25 to general purpose key F27 correspond.

  As shown in FIG. 10B, an instruction button corresponding to a general-purpose key capable of operating an override setting button, a manual feed button, a handle axis selection button, and a mode selection button is displayed on the display screen in the machine operation window. Is done.

  In addition, it is possible to increase the number of general-purpose keys that can be used according to the size of the enlarged machine operation window, and it is possible to set various machine operations (override setting, manual feed, selection of handle axis, etc.) as keys. it can. As is apparent from FIG. 10, the operator can perform an intuitive input work because it corresponds to the instruction button of the window in which the general-purpose keys are displayed.

Next, a flowchart showing the algorithm of the present invention executed by the processor (CPU) 11 when the screen layout is changed will be described with reference to FIG. A processor (CPU) 11 executes key input monitoring software comprising a flowchart of the following algorithm at predetermined intervals.
[Step SA1] Obtain screen layout information. Screen layout information is acquired when the numerical control device is started up and when the screen layout is changed. The screen layout information is stored in the memory 12.
[Step SA2] Refer to the screen list file.
[Step SA3] The definition file specified in the screen list file read in Step SA2 is identified.
[Step SA4] The definition file specified in Step SA3 is read.
[Step SA5] The definition file read in step SA4 is stored in the memory 12 as a key press information notification definition file.

[Step SA6] It is determined whether or not the screen layout has changed. If the screen layout has changed, the process returns to Step SA1, and if the screen layout has not changed, the process proceeds to Step SA7.
[Step SA7] It is determined whether or not the general-purpose key has been pressed. If it has not been pressed, the process returns to Step SA6, and if it has been pressed, the process proceeds to Step SA8.
[Step SA8] When the key is pressed, a window for notifying key press information is specified.
[Step SA9] Focuses on the specified window to notify the pressing information, and returns to Step SA6.

  Next, an embodiment in which the correspondence relationship of the general-purpose keys is changed when the window size is changed will be described. When the window size is changed, the key input monitoring software 1 acquires the changed window size, and updates the definition file read corresponding to the screen layout according to the window size. By updating the definition file according to the window size, it is possible to redefine the window for notifying general key press information. Hereinafter, a screen example 3 will be described.

<Screen example 3>
FIG. 12 shows a layout of a display screen on which a machine operation window and an NC information display window are displayed. FIG. 12A shows that the window is displayed in a size corresponding to a preset screen layout. In FIG. 12B, the size of the NC information display window 1 and the enlargement of the machine operation window are simultaneously reduced by dragging the boundary line between the NC information display window and the machine operation window with a mouse or the like, and the window size is changed. Shows the case. By dragging the boundary line, the size of the machine operation window (1) is enlarged to the machine operation window 1 ′, and the NC information display window 1 is reduced to the NC information display window 1 ′.

  The definition file is updated so that the operator can perform intuitive general-purpose key input operations even when the window size is changed. FIG. 14 is a diagram for explaining that a definition file read in a state before dragging is updated to a definition file after dragging. The definition file 1 for setting the correspondence relationship of the general-purpose keys before dragging is updated to the definition file 1 '.

  As described in FIG. 6, the definition file 1 corresponds to the general operation key F22 to the general purpose key F24 and the general purpose key F34 to the general purpose key F36 to the machine operation window 1 of the window 1, and the NC information display window of the window 2 to the NC information display window. General purpose key F1 to general purpose key F21 and general purpose key F25 to general purpose key F33 correspond to each other. When the boundary line is dragged, as the definition file 1 ′, the machine operation window 1 ′ of the window 1 corresponds to the general keys F19 to F24 and the general keys F31 to F36, and the NC information display window 1 ′. Corresponds to general-purpose key F1 to general-purpose key F18, and general-purpose key F25 to general-purpose key F30. Thus, the operability is improved by dynamically switching the general-purpose keys that can be used in accordance with the change in the window size.

Next, a flowchart showing the algorithm of the present invention executed by the processor (CPU) 11 when the screen layout is changed will be described with reference to FIG. A processor (CPU) 11 executes key input monitoring software comprising a flowchart of the following algorithm at predetermined intervals.
[Step SB1] Obtain screen layout information. Screen layout information is acquired when the numerical control device is started up and when the screen layout is changed. The screen layout information is stored in the memory 12.
[Step SB2] Refer to the screen list file.
[Step SB3] The definition file specified in the screen list file read in Step SB2 is identified.
[Step SB4] The definition file specified in Step SB3 is read.
[Step SB5] The definition file read in step SB4 is stored in the memory 12 as a key press information notification definition file.
[Step SB6] It is determined whether or not the screen layout has changed. If the screen layout has changed, the process returns to Step SB1, and if the screen layout has not changed, the process proceeds to Step SB7.

[Step SB7] It is determined whether or not the window size has changed. If not, the process proceeds to Step SB11. If it has changed, the process proceeds to Step SB8.
[Step SB8] The window size is acquired.
[Step SB9] The correspondence relationship with the general-purpose key is specified.
[Step SB10] The contents of the definition file read into the memory are updated with the correspondence specified in Step SB9.
[Step SB11] It is determined whether or not the general-purpose key has been pressed. If it has not been pressed, the process returns to Step SB6, and if it has been pressed, the process proceeds to Step SB12.
[Step SB12] When the key is pressed, a window for notifying key press information is specified.
[Step SB13] Focuses on the identified window to notify the pressing information and returns to Step SA6.

  The above flowchart will be supplementarily described. In step SB7, it is determined whether the window size has changed. Whether or not the window size has changed is determined by recalculating each window by the display software when the window size is changed by dragging the boundary position of the window with an input means such as a mouse and stored in the memory 12. The window size is updated in the display window information including the window size being displayed. Then, a size change flag FB for determining whether or not the window size has been updated is prepared.

The key input monitoring software 1 can determine whether the boundary position of the window size has been changed by monitoring the state of the size change flag FB. Note that the size change flag FB once referred to is reset.
In step SB9, processing for specifying the correspondence with the general-purpose key is performed. A table that defines the correspondence between the position of each general-purpose key 43 and the position of the display screen is prepared in advance and stored in the storage means. It may be the memory 12 or read from an external memory. By specifying the boundary position of the window, the combination of general-purpose memories is changed to correspond to the boundary position.
In step SB10, the definition file stored in step SB5 is updated according to the correspondence obtained in step SB9.
Next, the example of a screen displayed on the indicator 14 by FIGS. 16-17 is shown. FIG. 16 shows the display state of the window before the screen layout change shown in FIGS. 7A and 8A. FIG. 17 shows a display state of a window obtained by enlarging the NC information display window shown in FIG. FIG. 18 shows a window display state in which the machine operation window shown in FIG. 8B is enlarged.

It is a schematic block diagram of the numerical control device having a plurality of function keys of the present invention. It is an external view of the front of an LCD / MDI unit. FIG. 2 is a schematic functional block diagram of the present invention. It is a figure explaining changing correspondence of a general purpose key according to a screen layout in the present invention. It is a figure which shows the correspondence of a window and a general purpose key (example which expanded NC information display window). It is an example of a screen list file and definition files 1 and 2. It is an enlarged example of NC information display window. It is a figure which shows the correspondence of a window and a general purpose key (example which expanded the machine operation window). It is an example of a screen list file and definition files 1 and 3. It is an enlarged example of a machine operation window. It is a flowchart which shows the algorithm of key input monitoring software. It is an example of a change of window size. It is a figure which shows the correspondence of the window at the time of changing a window size, and a general purpose key. It is an example of a definition file change when the window size is changed. It is a flowchart which shows the algorithm of the key input monitoring software corresponding to the change of window size. It is an example of the window before a screen layout change. It is an enlarged example of NC information display window. It is an enlarged example of a machine operation window. It is a figure explaining the correspondence of the general purpose key and window which are prior arts. It is the example which changed the screen layout in a prior art.

Explanation of symbols

1 Key Input Monitoring Software 2 Window Management File 3 Key Press Information Notification Definition File 4 Screen List File 5 Definition File 6 Window 10 Numerical Control Device 41 Display Screen 42 Software Key 43 General Key

Claims (2)

In a numerical controller having a plurality of function keys for operating the application displayed in the window, and a display for arranging and displaying a plurality of application software windows on the screen according to the screen layout,
Definition data storage means for storing definition data defining which window the function key performs for each screen layout;
Screen list data storage means for storing screen list data associated with the screen layout and the definition data;
Changes in the screen layout displayed on the screen are monitored, and when the screen layout is changed, the screen list data is referred to and the definition data of the screen layout selected based on the screen list data is defined. Key input monitoring means for selecting and reading from the data storage means, monitoring the pressing of the plurality of function keys, and notifying the window that the function key has been pressed in a window designated based on the definition data; Have
A numerical control apparatus having a plurality of function keys, wherein the operation of the application is performed in accordance with the notified function keys.   An update unit that monitors a change in the window size of the application having the selected screen layout and updates definition data read in accordance with the window size when the window size is changed. A numerical control apparatus having a plurality of function keys according to claim 1.