KR100642182B1 - CNC system utilizing a central processing unit - Google Patents

Abstract

The present invention relates to a C & C system. In detail, the interface protocol is formalized to connect application modules in a Plug & Play manner without a compilation or linking process with a system, thereby expanding and maintaining application modules added to the system. It is about C & C system using single C oil which is easy to repair and integrate.

In addition, the present invention has an open HAM eye function that allows the user to configure the desired HM eye (HMI) through the data file, and the HAM eye function and numerical control unit having a display control unit function on a single CPU (CPU) C & C system that performs the motion control function of the same time.

The configuration of the present invention for achieving this is CSI and perform the motion control and screen display control of the CNC system at the same time; An operating system which acts as an interface between hardware such as machine tools and automation devices, manages the CPI, drives an operation, and controls input and output; A System Interface Library, which is linked with and executed by the main system to enable the interface of the hardware; A main system for driving control of the hardware through the system interface library; It includes an application module connected to the main system and Plug & Play (Plug & Play), and displays the position change according to the drive of the motor and the device according to the screen of the application module and the hard time module on the screen or internal A soft real time module for setting parameter values; A shared memory configured to store driving data of the application module and the main system and data applied from the soft real time module; And a hard real time module configured to drive and control the hardware by sharing data of the soft real time module stored in the shared memory.

CNC system, HMI, standard interface function, Plug & Play

Description

CNC system utilizing a central processing unit

1A is a block diagram illustrating a connection relationship between a soft real-time CPI module and a motion controller CPI module in a conventional CNC system.

1B is a block diagram showing a connection relationship between an application module and a main system in a conventional C & C system.

Figure 2 is a block diagram of the C and C system using a single C oil according to the present invention,

3 is a detailed block diagram showing a soft real time module of a C & C system using a single C & C according to the present invention;

4 is a block diagram illustrating a connection relationship between an application module and a main system of a CNC system using a single C oil according to the present invention.

Explanation of symbols on the main parts of the drawings

10: CPI 20: Operating system

30: interface library 40: main system

50: soft real time module 51: HAM eye module

52: standard interface function 53: application module

54: map manager 60: shared memory

61; Map File 70: Hard Real-Time Module

71: PLC execution means 72: G code interpretation means

73: position path setting means 74: position control setting means

75: C & C Kernel Manager 81: Io Interface

82: servo interface 511: input signal generating means

512: data reading means 513: machine control means

514: alarm monitoring means 515: AM AM data file

516: alarm backup memory

The present invention relates to a C & C system, which is different from the C & C apparatus, which is classified to control the conventional numerical control unit and the display control unit by two CPUs, and the HAM corresponding to the motion control module and the display control unit corresponding to the numerical control unit. The iRun module can be operated on a single CPI using the shared shared memory inside the system rather than external communication, and the interface protocol is connected so that the application module written by the user can be connected by Plug & Play method. It is related to C & C system using single C.U that is easy to expand, maintain, and integrate application modules that are added to the system by formalization.

Generally, Numerical Control is composed of three elements such as programming, control device, machine tool or automation equipment, but each element is developing rapidly. Machining Center, which can do not only one kind of work but also various kinds of work in general machine tools, is generalized in developed countries, and is equipped with automatic tool changer and automatic removal of workpieces. Progress has been made, from work pieces and tools to automatic conveying devices, from special computers to machine tools, to computerized Numerical Control Systems with internal computers.

The C & C system has a general-purpose high-speed computer therein, so that linear interpolation, circular interpolation, tool radius compensation, and the like can be adjusted as inputs. In addition, it has various functions such as correction of tool center passage, copying in NC, high speed contour machining, etc. These C & Cs are machining centers that can automatically change the tool change device and machining position. Widely used.

The C & C system is typically a human machine interface (HMI) module for executing a user's operation signal and additional functions and setting a display screen, and a motion controller module for precise control of hardware such as a sensor or a motor. It is composed. In this case, the HAM module determines an additional function of the CNC system, that is, a coordinate system setting means for setting a coordinate system of a machine tool or an automation device, an NC program editing means, and an abnormality of a contact signal with hardware. It is executed by user's operation in conjunction with C & C's main system, including an application module including a fault diagnosis means.

In the conventional C & C system, the CTU 1 controlling the HAM I module and the CTU 2 controlling the motion control module can transmit and receive data using external communication as shown in FIG. 1A. Are connected. In case of using such communication, if there is a lot of movement of data that requires communication, the load may be generated due to communication, and there may be a problem in the interface of the display unit and the numerical control unit due to communication error or poor communication cable. .

1B is a block diagram showing a relationship between an application module and a main system in a conventional C & C system.

Referring to FIG. 1, in the conventional C & C system, application modules 3 such as coordinate system setting, fault diagnosis, and program editors are dynamically connected to the main system 4, respectively, and driven as a single module. To change one of the functions of 3) or add a new application module 3 to the main system 4, the original source of the entire main system 4 must be compiled together.

That is, in the conventional C & C system, since the interface between the application module 3 and the main system 4 does not have a standardized protocol, different interface protocols between a plurality of application modules 3 developed by different developers are used. As the main system 4 and the application module 4 are connected, it is necessary to compile all the sources of the system together. Therefore, the addition of a module having a new function or the replacement of only the module whose function has been changed requires a complete system. The problem is that it is impossible to change it.

Disclosure of Invention The present invention devised to solve the above-mentioned problems has a first object of providing a C & C system using a single CSI that can operate screen display control and motion control using a shared memory inside the system on one CPI. It is done.

In addition, the present invention forms a connection relationship between the application module and the main system in a plug-and-play manner, and for this purpose, a standard interface function and HAM data file defined as an interface method by formalizing a basic function used between the application module and the main system. It is a second object of the present invention to provide a C & C system capable of displaying and changing HAM eye.

The configuration of the present invention for achieving the above object is the C and C to perform the motion control and the screen display control at the same time; An operating system which acts as an interface between hardware such as machine tools and automation devices, manages the CPI, drives an operation, and controls input and output; A System Interface Library, which is linked with and executed by the main system to enable the interface of the hardware; A main system for driving control of the hardware through the system interface library; It includes an application module connected to the main system and Plug & Play (Plug & Play), and displays the position change according to the drive of the motor and the device according to the screen of the application module and the hard time module on the screen or internal A soft real time module for setting parameter values; A shared memory configured to store driving data of the application module and the main system and data applied from the soft real time module; And a hard real time module configured to drive and control the hardware while sharing data of the soft real time module stored in the shared memory.

The hard real-time module generates a map of the shared memory when an application module is driven in the soft real-time module, and then the configuration of the hard real-time module reads data stored in the map to perform a normal function. It includes C & C Kernel Manager to detect the

The soft real time module reads a Human Machine Interface File including information of a corresponding screen according to a user input signal and displays the corresponding screen according to the operation of the main system and the application module. It includes a Human Machine Interface Module.

The HAM data file may include a file inputting a file name and a screen number linked to the standard interface function unit; A file for inputting a corresponding screen number for displaying an alarm; A file for inputting an alarm number and corresponding alarm content; A file for inputting a screen number, a location of internal variables displayed on the screen, and a display method thereof; A file for inputting a screen number and the position and size of characters displayed on the screen; A file for inputting the name and location of the picture file displayed on the screen; A file for inputting a menu item displayed for each screen; A file for inputting a screen number to be changed when the menu key is pressed on each screen; Include at least one of the files entered to display the parameter's name, value, and description.                         

In addition, the soft real time module is linked with the application module, and is connected to the main system in a plug & play manner to execute the linked application module linked with the main system. Contains standard interface functions.

Herein, the standard interface function unit is called when the application module is generated, the application module is terminated, a function called when it is displayed on the screen, a function that is hidden on the screen, a function called by a repetitive task or function, or a message is generated. Contains at least one of a function and a function to be called when string information is input.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the C & C system using a single C oil according to the present invention will be described in detail.

2 is a block diagram of a C & C system using a single C & C according to the present invention.

Referring to FIG. 2, the CPI 10 is connected to an automation device or a machine tool to drive a main system 40, which is a driving program, and converts a programmable control signal generated from the main system 40 into an electrical signal. Output control signal to connected machinery.

The operating system 20 manages the CPI 10 as an upper layer of the CPI 10, drives an operation, and controls input / output.

Here, the main system 40 includes a drive program stored in the shared memory 60 to drive control the automation device and the machine tool connected to the C & C system. In addition, the application module 53 is dynamically connected to the main system 40 having the .exe extension as configured with the .dll extension is executed in conjunction with the main system 40, the main system 40 In addition to the function of performing the additional function to set and change the drive data of each mechanical device connected to the hard real-time module 70, for example, coordinate system setting, program editing, parameter setting, Executes graphic path display, macro variable setting and fault diagnosis.

The system interface library 30 is linked to and executed by the main system 40 to enable an interface between the main system 40 and the mechanical device connected to the upper layer of the operating system 20.

The soft real time module 50 includes a plurality of application modules 53 connected to the main system 40 in a plug and play manner, and includes a screen of the user input and application module 53 and the main system ( A screen according to the operation of 40) is displayed and set.

In addition, the HAM module 51 of the soft real-time module 50 includes the information of the corresponding screen to the user HM eye data file 515 (Human Machine Interface Data File) stored in the shared memory 60 Read according to the input signal of the main system 40 and the application module 53 to display the corresponding screen in accordance with the operation, the standard interface function unit 52 including the basic function described below the application module 53 And the main system 40 is connected to the main system 40 in a plug and play manner so that the linked application module 53 is linked with the main system 40. The map manager 54 manages parameters used in the CNC system, input and output contacts, and status information in the system. The map manager 54 manages the shared memory 60 of the application module 53 and the HAM module 51. Manage Access

In addition, the shared memory 60 stores driving data of the application module 53 and the main system 40 and data applied from the soft real time module 50, and the hard real time module 70 stores the data. Reads data from the soft real-time module 50 stored in the shared memory 60 to drive control the mechanical device connected via the I / O interface 81 and the servo interface 82. do.

That is, the hard real time module 70 shares the data output from each application module 53 of the soft real time module 50 according to an operation signal input by the user through the HAM eye module 51. When stored in the memory 60, the shared memory 60 is accessed to read the corresponding data to drive and control the sensors, spindles, servomotors, and the like connected to each component. Here, the PLC execution means 71 performs on / off control to perform a desired operation with respect to a user's input and operation conditions (processing start button, switch selection value, etc.), and the G code analysis means 72 performs a G code. It analyzes the part program created by the machine. In addition, the position path setting means 73 generates a path of the position values to be moved by the machine using the analyzed machining program, the position control setting means 74 outputs the machine position value to the motor every time period, the sensor Receive feedback signal of the to ensure that the machine has the correct position on the moving path. The CNC kernel manager 75 generates a map of the shared memory 60 when the application module 53 is driven in the soft real time module 50, and then the configuration of the hard real time module 70 is determined. It reads the data stored in and detects whether it is performing normal function at the same time. The CNC kernel manager 75 stores the alarm information in the shared memory 60 when the PLC execution means 71 to the position control setting means 74 do not operate normally, and then the soft real time module. In operation 50, alarm information stored in the shared memory 60 is read and an alarm is displayed on a buzzer or a screen.

The hard real time module 70 performs a motion control function and an on / off control of a connected device through a system interface library 30, and provides position information fed back from the device. You can receive a signal.

Therefore, in the present invention, the data set and changed through the HAM module 50 having the screen display control function are stored in the shared memory 60, and the hard real time module 70 is stored in the shared memory 60. The data is read to control automation devices and machine tools connected through the IO interface 81 and the servo interface 82. That is, according to the present invention, the soft real time module 50 and the hard real time module 70 transmit data to each other through the shared shared memory 60 so that the screen display and motion control using the single CPE 10 are possible. Do.

Figure 3 is a detailed block diagram showing a soft real-time module in the C and C system using a single C oil according to the present invention.

Referring to FIG. 3, when the user inputs a predetermined operation signal using the keyboard, the input signal generating means 511 in the HAM module 51 generates a control signal corresponding to the input operation signal. The data reading means 512 reads the HAM data file 515 and displays it on the screen. The machine control means 513 outputs a control signal of a connected mechanical device according to a user's operation signal, and generates an alarm. The monitoring means 514 monitors the driving state of the connected automation device and the machine tool, and if the alarm information is stored in the alarm backup memory 516, it controls to display on the buzzer or the screen to display the abnormality of each hardware. . The HAM data file 515 and the alarm backup memory 516 are stored in a separate space from the shared memory 60.

In addition, the HAM data file 515 is formed as a .txt extension and stored in the shared memory 60 and includes information on each display screen according to the operation of the main system 40 and the application module 53. The user can set or change the screen by modifying the information contained in each file, as follows.

The HAM data file 515 includes information of each screen set when the main system 40 and the application module 53 are driven, and the data reading means 512 stores the HAM data file 515. By reading), each screen according to the driving of the application module 53 or the main system 40 is checked and the corresponding screen is output.

Therefore, the user inputs the screen number and file name of the application module 53 driven by the basic function of the standard interface function 52 into the asf.txt file included in the HAM data file 515. It is possible to link the developed application module 53 according to the interface format by the basic function of the interface function unit 52. Also, in the vdata.txt, stext.txt, and bmp.txt files, set the screen number, the position and size of variables and characters displayed on the screen, and enter the name and location of the picture file in BMP format to display the screen. Configure. In addition, the user may set menus and keys displayed on the screen through the ftext.txt and wtrans.txt files of the HAM data file 515, and set the screen to be moved according to the selection of each menu, and set alarms. In case of alarm, alarm number and its contents can be set through almdata.txt file.

In addition, the alarm backup memory 516 includes abnormal state information of each mechanical device connected as a separate configuration from the shared memory 60, and the alarm monitoring means 514 checks whether there is an abnormality of each device, and confirms. The result is compared with the information stored in the alarm backup memory 516 to display the presence or absence of equipment. The information stored in the alarm backup memory 516 is read by the data reading means 512 and applied to the alarm monitoring means 514. The alarm monitoring means 514 compares the information with the measured value. It will determine whether there is an abnormality.

In addition, the map manager 54 manages access to the shared memory 60 of the application module 53 and the HAM module 51 as described above, wherein the HAM eye module 51 and the application module ( 53 may write or read data to the map file 61 stored in the shared memory 60 through the map manager 54.

Therefore, when the user selects any one of the plurality of application modules 53 by the input signal generating means 511 of the HAM module 51, the application module (link) connected to the standard interface function unit 52 ( 53) is loaded into the shared memory 60 and executed.

That is, the standard interface function unit 52 drives the corresponding application module 53 according to a user manipulation signal applied from the input signal generating means 511 of the AM eye module, and at this time, the standard interface function unit ( 52 is connected to the application module 53 and is connected to the main system 40 for driving the HAM eye module 51 in a Plug & Play manner, as shown in FIG. same.

Referring to FIG. 4, the standard interface function unit 52 is a screen number and an application which are linked to the standard interface function unit 52 in the Asf.txt file in the HAM file 515 as described above. By inputting the filename of the module, it is linked and connected to the application module 53 having the .dll extension, and is connected by applying a plug and play method without being linked in the compilation step with the main system 40.

Therefore, the standard interface function unit 52 serves to drive the application module 53 in response to a call of the main system 40 by the user's selection signal through the HAM module 51, wherein the standard interface function unit 52 The application module 53 displayed on the screen is displayed according to the basic function of the standard interface function 52. Here, the standardized basic function of the standard interface function unit 52 is as follows.

Therefore, when the application module 53 is driven by a call of the main system 40, a function for implementing a data initialization function is called in the table, and the function of being terminated, displayed on the screen, hidden on the screen, Repetitive tasks and functions to be monitored, functions to be executed when a message is generated, and each function to process them as the string information is called upon input is driven in some cases to drive the HAM module 51 Is displayed on the screen.

That is, in the C & C system using the single C oil according to the present invention, the file name and the screen number of the application module 53 linked to the standard interface function unit 52 are linked to Asf.txt in the H.A.data file 515. By input, it is linked with the standard interface function unit 52, and the standard interface function unit 52 sets the interface protocol of each application module 53 by including the standard basic function described later. Accordingly, each application module 53 developed by different companies or developers is installed in the C & C system to which the present invention is applied, and when driven by the main system 40, the basic function of the standard interface function unit 52 is performed. It is possible to implement the same function.

Hereinafter, the operation of the present invention including the above configuration will be described in detail with reference to FIGS. 2 to 4.

When the user turns on the driving power, the CPI 10 is driven and the operating system 20 is executed so that the main system 40 is initialized. In response to the operation of the main system 40, the HAM eye module 51 reads the HAM eye data file 515 from the initial screen of the main system 40 and initializes the initial screen of the memory 60 in the memory 60. Displays the screen of internal information corresponding to

At this time, if the user selects the corresponding application module 53 to perform additional functions such as coordinate system setting through the keyboard, the input signal generating means 511 generates the input signal according to the user's keyboard operation to generate the standard interface function. The application module 53 is called through the unit 52.

Therefore, the application module 53 implements a function by a basic function included in the standard interface function unit 52, and the data reading means 512 in the HAM module 51 is an HAM data file. In operation 515, the corresponding screen information of the application module 53 is read and the corresponding screen is displayed.

Therefore, the user sets coordinate system settings and macro variables through each application module 53 displayed on the screen, and the generated data is stored as a file in the shared memory 60 through the map manager 54.

When the data stored in the shared memory 60 corresponding to the command to start operation is changed by the hard real time module 70 according to the driving of the HAM module 50, the PLC execution means 71 The position control setting means 74 reads the data stored in the generated map and controls the mechanism connected to the I / O interface 81 servo interface 82.

At this time, the C & C kernel manager 75 monitors the operation of the PLC execution means 71 to the position control means 74, if any of the abnormal operation is detected, and transfers it to the shared memory 60 Will be saved. Therefore, the alarm monitoring means 514 reads the abnormality information stored in the shared memory 60 and compares it with the alarm data stored in the alarm backup memory 516 and displays it on the buzzer or the screen if applicable.

In addition, when the user mounts the new application module 53 suitable for his purpose, when the user operates the keyboard, the input signal generating means 511 generates an input signal according to the user's keyboard operation, and the data reading. The means 512 reads the HAM data file 515 and displays it on the screen, and inputs the screen number and name of the new application module 53 into the HAM data file 515 displayed on the screen. Link with the standard interface box 52, the size of the characters displayed on the screen, the screen number and contents to display the alarm, the position and size of the picture file, the setting of the menu item and the moving screen number according to the selection of the menu item, By inputting information such as parameter name, value, and description, the screen of the newly installed application module 53 is set.

In addition, the present invention implements the functions of the application module 53 through the standardized basic functions of the standard interface function 52. When this is described in detail, the loading of the application module through the create function It implements functions that need to be done only once, such as shared memory creation, resource creation, and data initialization, and implements functions such as shared memory destruction and resource destruction at system shutdown through the Destroy function. In addition, it implements the function to be displayed on the screen and the hidden function through the Show function and the Hide function, and the repetitive task that is repeatedly executed at a certain time by the timer of the system through the Refresh function. It is possible to implement functions such as continuous monitoring, call the system messages using the message function, set the screen size of the application module through the size function, and process the message ( WndProc) is a function that connects each message to each other and receives necessary messages when various messages occur in the system through the WndProc) function, and sets a function that receives and processes the string entered by the user through the KeyData function. Done.

That is, the present invention has a link connection relationship between the standard interface function unit 52 and the application module 53, and the plug and play method as a standard basic function between the standard interface function unit 52 and the main system 40. The standard interface function unit 52 is stored in the Asf.txt file of the HAM data file 515 without going through a separate compilation process and a link process when the new application module 53 is mounted. By designating the application module 53 to be linked to) it is possible to connect the application module 53 in the DL (DLL, Dynamic Link Library) method.

While the invention has been shown and described with respect to certain preferred embodiments, it will be appreciated that the invention can be modified and modified in various ways without departing from the spirit or scope of the invention as set forth in the claims below. One of ordinary skill in the art will readily know.

As described above, in the C & C system using the single C oil according to the present invention, a standardized basic function is defined by distinguishing a situation occurring during the operation of the system, and the necessary functions are implemented by using the interface provided in the standardized basic function. Accordingly, the application module can be easily installed or removed, thereby easily constructing a new type of HAME suitable for the user's needs, and greatly reducing work time for improving the function of the controller.

In addition, since the screen display function and the numerical control function are simultaneously processed on a single CPI, the hardware configuration of the C & C system can be simplified, and the time and cost required for securing and maintaining the stability of the system can be greatly reduced.

Claims (6)

delete delete delete delete CPI 10 for simultaneously performing motion control and screen display control of the C & C system; An operating system 20 which serves as an interface of hardware such as a machine tool and an automation device, drives the CPI 10 to drive an operation, and controls input and output; A system interface library (30) for linking and executing the main system (40) to enable the interface of the hardware; A main system (40) for driving control of the hardware through the system interface library (30); It includes an application module 53 connected to the main system 40 and the Plug & Play (Plug & Play), the motor and the device according to the screen of the application module 53 and the hard real time module 70 Soft real-time module having a standard interface function unit 52 for displaying the position change according to the operation of the screen or setting the internal parameter value, and executes the application module 53 in conjunction with the main system 40 ( 50); A shared memory (60) for storing driving data of the application module (53) and the main system (40) and data applied from the soft real time module (50); And a hard real time module 70 for controlling driving of the hardware while sharing data of the soft real time module 50 stored in the shared memory 60, wherein the hard real time module 70 is a soft real time. The module 50 defines a map generated in the shared memory 60 when the application module 53 is driven, and then executes motion control by reading data stored in the map in the hard real time module 70. And a CNC kernel manager 75 for monitoring whether normal driving is performed, and the soft real time module 50 uses a human machine interface file 515 including information of a corresponding screen. It is characterized in that it comprises a HM eye module 51 (Human Machine Interface Module) for reading according to the input signal of the main system 40 and the application module 53 to display the corresponding screen In the C & C system using IL CUI, The AM AM data file 515 is A file inputting a file name and a screen number linked to the standard interface function unit 52; A file for inputting a corresponding screen number for displaying an alarm; A file for inputting an alarm number and corresponding alarm content; A file for inputting a screen number, a location of internal variables displayed on the screen, and a display method thereof; A file for inputting a screen number and the position and size of characters displayed on the screen; A file for inputting the name and location of the picture file displayed on the screen; A file for inputting a menu item displayed for each screen; A file for inputting a screen number to be changed when the menu key is pressed on each screen; C & C system using a single C, including at least one of the input file to display the name and value of the parameter and the comment. The method of claim 5, wherein the standard interface function 52 The creation of an application module, the termination of the application module, the function called when it is displayed on the screen, the function that is hidden on the screen, the function called with repetitive tasks or functions, the function called when a message occurs, the string information C & C system using a single C, including at least one of the functions called when.

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