JPH08328829A - Parameter change history managing system - Google Patents

Abstract

PURPOSE: To improve parameter managing efficiency by confirming the validity of change of a parameter by requesting the input of a change reason when the change of the parameter is executed and facilitating the retrieval of a change history by storing the change reason. CONSTITUTION: This system is equipped with parameter memory 6 which stores the parameter, to decide the function and specification of a controlled machine and a controller, a change reason input request means (arithmetic control part 2A, setting display control part 10, setting display part 11) which requests the input of the change reason to change all the plural parameters stored in the parameter memory 6 comprehensively, a change reason input means (setting display part 11) which inputs the change reason corresponding to an input request by the change reason input request means, and change reason storage memory 12 which stores the change reason inputted by the change reason input means by making correspond to the parameter and stores a parameter change history classified by every change reason.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parameter change history management system for managing a parameter change history for determining functions and specifications of controlled machines and control devices, and more particularly,
The present invention relates to a parameter change history management system for a numerical control device.

[0002]

2. Description of the Related Art FIG. 10 is a block diagram showing a configuration of a conventional numerical control apparatus. In the figure, 1 is a digital input / output unit for executing input of an automatic operation mode signal and an automatic start signal, for example. , 2C controls the entire numerical control device, and an arithmetic and control unit that executes control of each component of the numerical control device, and 3 a data memory that stores data related to the numerical control, such as an operation mode and a driving operation signal. , 4 is a program memory for storing a machining program necessary for numerical control, 5 is an analysis unit for analyzing the machining program, 6 is a parameter memory for storing information indicating specifications and functions of the machine tool 9, and 7 is an analysis. A machine control unit that calculates the amount of movement per unit time with reference to the output data of the unit 5, 8 is a drive unit that drives the machine tool 9, and 10 is that that controls the content displayed on the setting display unit 11. , Conversely, a setting display control unit for sending the input from the setting display unit 11 data to the arithmetic control unit 2C. Reference numeral 11 denotes a setting display unit, which includes a screen display unit that displays data from the setting display control unit 10 and a data input unit that inputs various data.

Next, the operation of the above-mentioned conventional numerical control device will be described. The digital input / output unit 1 exchanges data with the data memory 3 via the arithmetic control unit 2C. That is, an automatic operation mode signal and an automatic start signal are input to the digital input / output unit 1 from a machine operation panel (not shown) by an operator's operation. When the automatic operation mode signal and the automatic start signal are input, the arithmetic control unit 2C reads the machining program from the program memory 4 and outputs the machining program to the analysis unit 5. In the analysis unit 5, the information indicating the specifications and the presence / absence of functions set in the parameter memory 6 is collated with the instruction of the machining program, and if the instruction of the machining program is a permitted instruction, it corresponds to the instruction. Analyze the program according to the operating specifications or functions.

After that, after the machining program is analyzed in the analysis unit 5, the data output from the analysis unit 5 is temporarily stored in a predetermined address of the data memory 3 by the arithmetic control unit 2C. Further, the machine control unit 7 refers to the output data from the analysis unit 5 stored in the data memory 3 to calculate the movement amount of the control target per unit time.
The calculation result of the movement amount is further stored in a predetermined address of the data memory 3 by the arithmetic control unit 2C.

The drive unit 8 reads the calculation result of the movement amount per unit time stored in the data memory 3 as an input command, and the calculation result and a detection unit of a motor (not shown) mounted in the machine tool 9. The calculation processing is performed with the feedback signal output from the motor, the motor driving power is generated based on the calculation result, and the motor driving power is supplied to the motor in the machine tool 9. As a result, the machine tool 9 executes the operation defined by the machining program and executes the machining process desired by the operator.

On the basis of a command from the arithmetic and control unit 2C, the setting display control unit 10 includes a screen display unit such as a CRT display and a setting display unit 11 including a data input unit such as a keyboard and a mouse. , The contents of the program memory 4 and the parameter memory 6 are displayed in a predetermined format, and the information input from the data input unit is fetched, and the memory group (data memory 3, program It is stored in the memory 4 and the parameter memory 6).

As described above, in the conventional numerical control device, the parameters stored in the parameter memory 6 are used to calculate the parameters.
The data displayed on the screen display unit of the setting display unit 11 via C and the setting display control unit 10 and the data input from the data input unit of the setting display unit 11 are displayed on the arithmetic control unit 2C and the setting display control unit 10. The data can be written in the parameter memory 6 via the parameter memory 6, that is, the data automatically measured as the parameter value or the automatically adjusted value can be taken in, and the data related to the parameter can be saved / restored.

[0008]

However, in the above-mentioned conventional numerical control apparatus, when changing the parameters that determine the function, specifications or control characteristics of the numerical control apparatus, it is possible to input the reason for the change. Since it is not possible to confirm the validity of whether or not the parameter change is appropriate, and because the reason for the change cannot be stored, it is not possible to retrieve the parameter change history from the reason for the change. was there.

The present invention has been made in view of the above, and confirms the validity of the parameter change by requesting the input of the reason for the change when the parameter of the numerical control device is changed. Another object is to obtain a parameter change history management system with improved parameter management efficiency by facilitating a change history search by storing the reason for the change.

[0010]

In order to solve the above problems, a parameter change history management system according to the present invention is a parameter storage means for storing parameters for determining functions and specifications of controlled machines and control devices. And a change reason input requesting means for requesting an input of a change reason for collectively changing all of the plurality of parameters stored in the parameter storage means, and a change reason according to an input request by the change reason input requesting means. And a change reason storage means for storing the change reason input by the change reason input means in association with the parameter and for storing the parameter change history by the change reason. is there.

In the parameter change history management system according to the next invention, when the parameter change is completed, the save control means for saving the old parameter before the change and the reason for the change corresponding to the old parameter, and the save control. It is provided with a save information storage means for storing the old parameter saved by the means and the change reason corresponding to the old parameter.

A parameter change history management system according to the next invention is an identifier setting means for setting an identifier indicating a parameter change corresponding to the change of the parameter, and an identifier for storing the identifier set by the identifier setting means. And a storage means.

A parameter change history management system according to the next invention includes a change reason display requesting means for requesting display of a desired change reason among the change reasons stored in the change reason storing means, and the change reason display request. And a reason for change display means for displaying the reason for change requested by the means.

A parameter change history management system according to the next invention comprises parameter storage means for storing parameters for determining functions and specifications of the controlled machine and control device,
Change reason input request means for requesting an input of a change reason for changing some of the plurality of parameters stored in the parameter storage means, and a change reason according to an input request by the change reason input request means. Change reason input means for inputting, and change reason storing means for storing the change reason input by the change reason input means in association with a part of the changed parameter and storing a parameter change history by the change reason. It is equipped with.

A parameter change history management system according to the next invention comprises a save control means for saving the old parameter before the change and the reason for the change corresponding to the old parameter when the change of a part of the parameters is completed, The backup information storage unit stores the old parameter saved by the save control unit and the change reason corresponding to the old parameter.

A parameter change history management system according to the next invention comprises an identifier setting means for setting an identifier indicating a change in the position of the parameter in response to a partial change in the parameter, and the identifier setting means. And an identifier storage means for storing the identifier.

A parameter change history management system according to the next invention includes a change reason display requesting means for requesting display of a desired change reason among the change reasons stored in the change reason storing means, and the change reason displaying means. And a change history display means for displaying the parameter change history edited by the change history control means. It is a thing.

[0018]

A parameter change history management system according to the present invention stores parameters for determining functions and specifications of a controlled machine and a control device, and makes a change for collectively changing all of the stored plurality of parameters. A reason is requested, a reason for change is entered in response to the input request, the entered reason for change is stored in association with a parameter, and a parameter change history is stored according to the reason for change. The reason for the corresponding change becomes clear.

A parameter change history management system according to the next invention saves the old parameter before change and the reason for change corresponding to the old parameter when the batch change of parameters is completed, and the saved old parameter. And since the reason for changing corresponding to the old parameter is stored,
The history of past parameter changes will be clarified.

A parameter change history management system according to the next invention sets an identifier indicating a parameter change corresponding to a batch change of parameters and stores the set identifier. The reason for change corresponding to can be easily searched.

A parameter change history management system according to the next invention requests display of a desired change reason among stored change reasons, and displays the requested change reason. It is easily visible.

A parameter change history management system according to the next invention stores parameters for determining functions and specifications of a controlled machine and a control device, and changes a part of the stored plurality of parameters. Requesting the input of the reason for change, inputting the reason for change in response to the input request, storing the input reason for change in correspondence with a part of the changed parameter, and storing the parameter change history according to the reason for change. Therefore, the reason for the change corresponding to each parameter becomes clear.

A parameter change history management system according to the next invention, when a part of the parameters is changed,
The old parameter before the change and the change reason corresponding to the old parameter are saved, and the saved old parameter and the change reason corresponding to the old parameter are stored, so that the change history of each parameter in the past can be clarified. Become.

A parameter change history management system according to the next invention sets an identifier indicating a change in the position of a parameter in response to a partial change in the parameter and stores the set identifier. It is possible to easily search the change reason corresponding to the change of each parameter.

A parameter change history management system according to the next invention requests display of a desired change reason among stored change reasons, and the requested parameter and / or
Alternatively, the parameter change history is arbitrarily edited based on the reason for change and the edited parameter change history is displayed, so that the reason for changing each parameter can be visually recognized, and the visibility is improved by editing the display content. be able to.

[0026]

Embodiments of the parameter change history management system according to the present invention will be described below with reference to the drawings. Here, the first embodiment relates to batch change of parameters,
The second embodiment relates to individual change of individual parameters. In each embodiment, a numerical controller will be described as an example.

First Embodiment (Structure of First Embodiment) First, the first embodiment will be described.
FIG. 1 is a block diagram showing the configuration of a numerical controller according to the first embodiment. In the figure, 1 is a digital input / output unit, and 2 is a digital input / output unit.
A is an arithmetic control unit, 3 is a data memory, 4 is a program memory, 5 is an analysis unit, 6 is a parameter memory, 7 is a machine control unit, 8 is a drive unit, 9 is a machine tool, 10 is a setting display control unit, 11 1 is a setting display section, and FIG.
At 0, the same function as described using the same number is performed. However, the arithmetic control unit controls components such as a change reason storage memory and a save control unit, which are not included in the conventional numerical control device, which will be described below, and is therefore distinguished from the arithmetic control unit 2C shown in FIG. Therefore, the calculation control unit 2A is used.

Further, 12 is a change reason storage memory for storing the change reason input from the data input section of the setting display section 11, and 13 is a parameter before the change request and its change reason when a parameter change request is made. And the like to the save storage memory 14 for saving, a save memory 14 for storing the parameters saved by the save controller 13 and the reason for change, and 15 a parameter change identifier storage memory for storing the parameter change identifier , 16 are parameter change identifier setting units for setting a parameter change identifier for a parameter. Here, the parameter change identifier is provided in association with each parameter, and when the value of the parameter is changed, an identifier different from the previous identifier is set in a predetermined order.

(Operation of First Embodiment) Next, the operation of the numerical controller according to the first embodiment will be described. In Figure 1,
The digital input / output unit 1 executes transfer of data with the data memory 3 via the arithmetic control unit 2A. That is,
When an automatic operation mode signal and an automatic start signal are input to the digital input / output unit 1 from the machine operation panel (not shown) by the operator's operation, the address automatically storing the operation mode of the numerical control device in the data memory 3 is automatically detected. "1" is set to the bit indicating the operation, and "1" is set to the bit indicating the automatic start of the address storing the operation signal.

Next, when "1" is set in each of the two bits indicating the automatic operation and the automatic start in the data memory 3, the arithmetic control unit 2A outputs information indicating that "1" is set in the data memory 3, respectively. The processing program is received from the memory 3 and the processing program is read from the program memory 4 block by block, and the read processing program is output to the analysis unit 5 block by block.

In the analysis unit 5, the parameter memory 6
The information indicating the operation specification or the presence or absence of the function set in step 1 is read out, the information is collated with the instruction of the machining program, and the instruction of the machining program is permitted according to the specification set in the parameter memory 6. If the command is a specified command, the analysis of the program is executed according to the operation specification or function corresponding to the command. The analysis executed by the analysis unit 5 includes coordinate conversion, conversion from an absolute position to an incremental value, calculation of the feed rate, and the like.

Next, after the command of the machining program is analyzed in the analysis unit 5, the data related to the machining program output from the analysis unit 5 is temporarily stored in a predetermined address of the data memory 3 by the arithmetic control unit 2A. It The machine control unit 7 also refers to the output data from the analysis unit 5 stored in the data memory 3 to calculate the movement amount per unit time. The calculation result of the movement amount is further stored in a predetermined address of the data memory 3 by the arithmetic control unit 2A.

Next, the drive unit 8 reads the calculation result of the movement amount per unit time stored in the data memory 3 as an input command, and outputs it from the detection unit of a motor (not shown) mounted in the machine tool 9. The calculation processing with the feedback signal is performed, the motor driving power is generated based on the result of the processing, and the motor driving power is supplied to the motor in the machine tool 9. As a result, the machine tool 9 executes the operation stored in the program memory 4 and defined by the called machining program, and executes the machining desired by the operator.

The setting display control unit 10 includes a screen display unit such as a CRT and a data memory 3, a setting display unit 11 including a data input unit such as a keyboard or a mouse.
The program memory 4, the parameter memory 6, and other contents are displayed in a predetermined format, and information input from a data input unit such as a keyboard or a mouse is taken into the arithmetic control unit 2A.

(Display screen of Embodiment 1) FIG. 2 is an explanatory view showing a layout of a display screen displayed on the setting display section 11, in which 201 is a serial number of parameters,
202 is the name of the parameter corresponding to the serial number 201 of the parameter, 203 is the parameter value of the parameter, 20
Reference numerals 4 denote parameter change identifiers for identifying the parameters. In FIG. 2, the serial number 201 is "0" as the parameter currently being executed.
"2" indicates "backlash G1", which means backlash during cutting feed, is displayed in the parameter name 202.

Reference numeral 205 is a change reason input request unit. The change reason input request unit 205 includes the setting display control unit 10
Displays a request to input the reason for change on the setting display unit 11. For example, as shown in FIG.
A message “What is the reason for change?” Is displayed on the change reason input requesting unit 205. This message requests the operator to change the parameter. The change reason input requesting unit 205 is shown at the upper right in FIG. 2, but the position is not particularly limited, and it can be displayed at a desired position on the display screen of the setting display unit 11. Further, the operator can move the change reason input requesting unit 205 to a desired position on the display screen of the setting display unit 11.

Next, in FIG. 2, reference numeral 206 denotes a change reason input section. The change reason input unit 206 inputs the reason for change to the display position. Also, the setting display section 1
The display position of the change reason input unit 206 on the No. 1 display screen is not limited to the position shown in FIG. Considering the convenience of the operation when the operator inputs the reason for change,
The display position of the change reason input unit 206 is close to the display position of the change reason input request unit 205, and further, as shown in the figure, it is better to be at the lower position of the change reason input request unit 205 in order to improve visibility. desirable. This change reason input section 2
06 is displayed as a rectangular blank, and the cursor 207 is displayed at the leftmost end of the blank and cursor 2 is displayed.
From the position of 07, the reason for changing the parameter is input in characters using a keyboard or the like that constitutes the data input section of the setting display section 11.

Numerals 208 and 209 are screen change parts, which are clicked with a mouse or the like,
For example, clicking the screen changing unit 208 can switch the screen display of the setting display unit 11 to the previous screen, and conversely, clicking the screen changing unit 209 can switch to the next screen. Further, reference numeral 210 is a change reason display requesting unit for displaying or canceling the change reason. Details of the change reason display requesting unit 210 will be described later.

(Input Procedure of Reason for Changing Parameter) Next, the input procedure of the reason for changing the parameter will be described. When inputting the reason for changing the parameter, the operator first recognizes the message indicating the reason for changing displayed in the change reason input requesting unit 205, and then the setting display unit 1
A predetermined position of the reason for change input unit 206, that is, the cursor 207
Enter the reason for changing the parameter according to the display position of. For example, the operator uses the change reason input request unit 20.
The message "What is the reason for change?" Displayed in 5 is recognized, and "high-precision machining retest" is input as the reason for change.

Further, one or a plurality of candidates for the change reason may be displayed at an arbitrary position on the display screen of the setting display section 11, and the operator may be allowed to select the optimum change reason. The selected change reason is automatically displayed at a predetermined position of the change reason input section 206. The change reason input unit 206 outputs data relating to the change reason to the calculation control unit 2A via the setting display control unit 10. The arithmetic control unit 2A determines the validity of the input change reason based on the change reason of one or a plurality of parameters registered in advance and determines whether or not the change reason should be permitted, and determines the change reason. Determine whether to allow parameter changes.

When the arithmetic control unit 2A determines that the reason for the change is valid, as shown in FIG. 3, the setting display unit 1
The reason for change input from the keyboard or the like constituting the data input unit 1 is the content of the reason for input at the position where the change reason input unit 26 is displayed on the display screen of the setting display unit 11, that is, the above In the input example, the reason for change "high-precision machining retest" is displayed, and the data for the reason for change is stored in the reason-for-change storage memory 12 via the arithmetic control unit 2A.

On the other hand, when the arithmetic control unit 2A determines that the reason for the change is not valid, it prohibits the parameter from being changed, rejects the input of data relating to the change, and confirms that the reason for the change is not valid. , Is displayed on the data display section of the setting display section 11.

(Parameter Change Procedure) Next, a procedure for changing parameters will be described. The process of changing the parameter is started by an operation of a change instruction from the operator or when the operator inputs the reason for the change. First, the evacuation control unit 13
If there is a change instruction from the operator or a change reason is input before the parameter change processing is executed, a new change instruction, which is the contents of the parameter memory 6, is executed in advance. The parameter (hereinafter, old parameter) that was valid until the prompt and the reason for change (hereinafter, old reason for change) that was valid until a new change instruction corresponding to the old parameter was issued are saved from the parameter memory 6. The control for transferring to the storage memory 14 is executed.

Under the save control by the save control unit 13, the old parameters are transferred to the save memory 14 for storage. Similarly, the contents of the old change reason are also associated with the old parameters, and the save storage memory 1
4 will be transferred to and stored.

After the reason for change is input and the saving of the old parameter and the old reason for change in the saving storage memory 14 is completed, the operator uses the data input unit such as the keyboard of the setting display unit 11 to set the desired parameter. input. For example, when the serial number 201 in FIG. 2 is “02” and the parameter name 202 is “backlash G1”, in order to change the parameter value 203 to “15”, the data of “15” is input to the position of the parameter value 203. .

When the parameter change identifier setting unit 16 detects the input of a new parameter, the parameter change identifier setting unit 16 sets an identifier different from the old parameter for the parameter in a predetermined order. As mentioned above, the serial number 201 is "0.
2 ”and the parameter name is“ backlash G1 ”, the parameter change identifier setting unit 16 automatically sets“ * 3 ”as the parameter change identifier in response to changing the parameter value 203 to“ 15 ”, The parameter change identifier “* 3” is displayed at a predetermined position of the identifier 204 on the display screen of the setting display unit 11, and the parameter change identifier storage memory 15 stores the identifier “* 3”. Further, the number "3" of this identifier "* 3" indicates that it is the third change. Therefore, the operator can easily recognize the number of changes based on the value of the numeral.

In FIG. 3, the serial number 201 is "02",
For the parameter name "Backlash G1",
It is explanatory drawing which shows the state in which the change input of the parameter is completed and all the data regarding the change input are displayed on the display screen. When the data input is completed as shown in FIG. 3, the parameters are changed thereafter.
Also, after completing the above data input, a confirmation screen, for example,
After displaying a screen such as "Is the change as shown on the screen OK?" In an arbitrary part, prompting the operator to confirm the reason for the change again, and after the setting display control unit 11 detects the input signal indicating the confirmation by the operator. Alternatively, the above parameters may be changed.

By the above procedure, the parameter change is completed, the display screen of the setting display section 11 returns to the state shown in FIG. 2, and enters the standby state to accept the next parameter change.

(Operation of Change Reason Display Request Unit) Next, the operation of the change reason display request unit 210 will be described with reference to FIGS.
Will be explained. 2 and 4, in the present embodiment, the change reason display requesting unit 210 has a lower position at a predetermined position on the display screen of the setting display unit 11, that is, on the display screens in FIGS. It is displayed as one icon in a series of icons in the side part. By clicking this change reason display unit 210 portion on the display screen with a mouse or the like or touching the position displayed on the setting display unit 11 with a finger or a pen, the control calculation unit 2A causes the change reason storage memory A command signal is output to 12 to read the corresponding change reason. The change reason read from the change reason storage memory 12 by the read command signal is input to the setting display control unit 10, and the setting display control unit 1
0 displays the reason for the change on the display screen of the setting display unit 11.

As a result, as shown in FIG.
1, for example, "high-precision machining retest" is displayed on the setting display unit 10
No. 1 is displayed at a predetermined position on the display screen. At the same time, the parameter value 203 “15” and the parameter change identifier 204 “* 3” are also displayed. With these displays, the operator can easily visually recognize what the reason for changing the parameter is, and what the parameter value and the parameter change identifier are.

In FIG. 4, the reason for change 401 is displayed in the upper right portion of the display screen, but the display is not limited to this position, and the method for displaying the reason for change 401 is the display method shown in FIG. It is not limited to, but includes any display method for displaying the reason for change so that the operator can recognize the reason.

The change reason display requesting unit 210 is
In the state where the change reason 401 is displayed on the display screen, that is, in the display state shown in FIG. 4, when the part of the change reason display unit 210 on the display screen is pressed again by clicking the mouse or the like, The display of the change reason 401 can be erased (released), and the original setting screen, that is, the display state shown in FIG. 2 can be restored.
As described above, by pressing the portion of the change reason display requesting unit 210, the display of the change reason and the cancellation of the display are alternately repeated. Further, in the above-described embodiment, the reason for change is displayed by pressing the reason for change request unit 210, but the reason for change may always be displayed when the changed parameter is selected. .

(Effect of First Embodiment) According to the first embodiment, since the input of the reason for change is required when the parameters are collectively changed, the validity of the parameter change can be confirmed.
Incorrect settings can be prevented, and incorrect cutting due to incorrect parameter settings can be prevented. Further, since the input reason for change is stored in association with the changed parameter and the reason for change is displayed as necessary, the reason for the change can be confirmed after changing the parameter, and the desired parameter in the past can be confirmed. It becomes easy to recover to the above state. Further, since an identifier is set for each parameter change, the parameter change location can be accurately grasped based on the identifier, and the change frequency can be easily recognized.

[Second Embodiment] (Configuration of Second Embodiment) Next, a second embodiment will be described.
FIG. 5 is a block diagram showing the configuration of the numerical controller according to the second embodiment. The configuration of the numerical control device according to the second embodiment is as follows.
A change history control unit 17 is added to the numerical control device according to the first embodiment shown in FIG. In response to a read request from the setting display control unit 10, the change history control unit 17 reads the individual old parameters and old change reasons saved in the save storage memory 114, and sends them to the setting display control unit 10. The data of each old parameter and old change reason is output. In addition to the above, the change history control unit 17 also manages change history such as old parameters, old change reason, change date and time. The other configurations are the same as the configurations of the numerical control device according to the first embodiment shown in FIG. 1, and thus the description thereof is omitted.

(Operation of Second Embodiment) Next, the operation of the numerical control device according to the second embodiment will be described. The operation of the numerical control device according to the second embodiment is the same except for the operation of the change history control section 17. Is the same as the operation of the numerical controller according to the first embodiment, the description thereof will be omitted. With respect to the arithmetic control unit, since it controls the components, such as the change history control unit 17 described below, which are not included in the numerical control device according to the first embodiment, the arithmetic control unit 2A shown in FIG. For the sake of distinction, the calculation control unit 2B is used.

(Display Contents of Setting Display Unit) FIG. 6 is an explanatory diagram showing a layout of a display screen displayed on the setting display unit 11. In the figure, 201 indicates a parameter serial number, 202 indicates a parameter name corresponding to the parameter serial number 201, 203 indicates a parameter value of the parameter, and 204 indicates a parameter change identifier for identifying the parameter. , 205 is a change reason input request unit, 206 is a change reason input unit, 207
Is a cursor, 208 and 209 are screen changing units, 210
Is a change reason display requesting unit, which is the same as the display screen of the setting display unit 11 according to the first embodiment shown in FIG.

(Parameter Changing Procedure) The parameter changing procedure is basically the same as the parameter changing procedure shown in the first embodiment. That is, when the parameter change identifier setting unit 16 detects the input of a new parameter, the parameter change identifier setting unit 16 sets an identifier different from the old parameter for the parameter in a predetermined order.
For example, the serial number 201 is “02” and the parameter name is 2
02 changes the parameter value 203 to “20” for “backlash G1”, the parameter change identifier setting unit 16 sets “A” as the parameter change identifier.
2 "is automatically set and the parameter change identifier" A "
2 ”is the identifier 20 on the display screen of the setting display unit 11.
No. 4 is displayed at a predetermined position, and the identifier “A2” is stored in the parameter change identifier storage memory 15.
The number "2" of the identifier "A2" indicates that the change is the second time. Therefore, the number of changes can be easily recognized from the part of the number.

Further, the arithmetic control unit 2B is provided with a time measuring means (not shown), and measures the date and time when the parameter changing process is completed by the time measuring means and saves the measured date and time data in association with the old parameter. Storage memory 1
Store in 4.

By the above procedure, the parameter change is completed, and the display screen of the setting display unit 11 is in a standby state for accepting the next parameter change. However,
In the second embodiment, unlike the first embodiment, the parameter value 20
3 and the parameter change identifier 204 are not erased and remain displayed until the next parameter change is input.

FIG. 6 shows a state in which the reason for change is displayed by the change reason display requesting unit 210. The parameter value 203 and the parameter change identifier 204 are still displayed even in the standby state. Therefore, depending on the click of the change reason display request unit 210, the change reason 401
Only the portion (see FIG. 7) will change. Others are the same as in the first embodiment.

(Operation of Change History Display Request Unit) Next, the operation of the change history display request unit 801 will be described with reference to FIGS.
Will be explained. In FIG. 8 and FIG. 9, the change history display requesting unit 801 displays the menu of the lower part in a predetermined position on the display screen of the setting display unit 11, that is, on the display screens in FIGS. 8 and 9. It is displayed as one item inside. This change history display request unit 80 on the display screen
1 is clicked with a mouse or the like, or the position of the change history display requesting unit 801 displayed on the setting display unit 11 is touched with a finger or a pen, so that the change history control unit 17 saves A command signal is output to the storage memory 14 to read the corresponding old parameter, the reason for the old change and the date and time of the change, and to the parameter change identifier storage memory 15 to read the corresponding parameter change identifier.

Further, the save storage memory 14 and the parameter change identifier storage memory 15 read out the old parameter, the old change reason, the change date and time, and the parameter change identifier by the read command signal, and the read data is sent via the arithmetic control unit 2B. The change history control unit 17 outputs the read data such as old parameters to the change history control unit 17, and after performing edit processing such as rearranging the data in time series,
The edited data is sent to the setting display control unit 10 via the arithmetic control unit 2B, and the setting display control unit 10 displays the edited data on the display screen of the setting display unit 11.

As a result, a display screen as shown in FIG. 9 is obtained. In FIG. 9, the displayed contents are date and time 90.
1, a parameter name 902, a parameter value 903, and a parameter change identifier 904. From this display screen,
For example, the date and time when the parameter name is "backlash G1" and the parameter value is set to "15" is "1994 9
On the 10th of the month at 4:52 pm ”and its parameter change identifier is“ A0 ”,
Furthermore, it can be seen that the reason for the change is due to "initial setting". The same applies below.

Further, in FIG. 9, the change history is displayed in time series, but it is not limited to the time series display method. For example, instead of expressing the parameter value of the old parameter by a numeral, Parameter values are graphed, etc.
It includes any display method for displaying the change history so that it can be recognized by the operator. When displaying the parameter values as a graph as described above, the machine tool 9
It is possible to give advance notice of a change in the parameter value for.

Further, the change history control unit 17 is in a state where the change history is displayed on the display screen, that is, in FIG.
When the portion of the change history display requesting unit 801 on the display screen is pressed again by clicking the mouse or the like in the display state shown in, the display of the change history is erased and the original setting screen, that is, The display state shown in FIG. 8 can be restored. As described above, by pressing the change history display requesting unit 801, it becomes possible to alternately display the change history and cancel the display thereof.

(Effect of Embodiment 2) According to Embodiment 2, the old parameter, the old change reason, and the date and time of the change are stored as a change history, and the contents of the change history are arbitrarily set according to the operator's request. Since the display format is edited and displayed, it is possible to easily confirm the past change history of each parameter.

[0067]

As described above, in the parameter change history management system according to the present invention, the parameters for determining the functions and specifications of the controlled machine and the control device are stored, and the stored plurality of parameters are stored. Request the input of the change reason for collectively changing all of the parameters, input the change reason in response to the input request, store the input change reason in association with the parameter, and change the parameter change history Because it is memorized for the reason, the reason for the change corresponding to the batch change of the parameter is clarified, the validity of the parameter change can be automatically confirmed, and the illegal setting can be prevented in advance. Accidental cutting can be prevented.

In the parameter change history management system according to the next invention, when the batch change of the parameters is completed, the old parameter before the change and the reason for the change corresponding to the old parameter are saved and saved. Since the old parameter and the reason for the change corresponding to the old parameter are stored, the past parameter batch change history becomes clear,
It is possible to easily restore the desired parameter state in the past.

In the parameter change history management system according to the next invention, an identifier indicating a parameter change is set in response to a batch change of parameters, and the set identifier is stored, so that the parameter is changed by the identifier. The change reason corresponding to the batch change can be easily searched, and the batch change of the parameter can be accurately grasped based on the identifier, and the change frequency can be easily recognized.

In the parameter change history management system according to the next invention, among the stored change reasons, the display of the desired change reason is requested and the requested change reason is displayed. The reason for the change can be easily visually recognized, the validity of the parameter can be arbitrarily confirmed, and further, the accuracy of the confirmation can be improved because it can be visually confirmed.

A parameter change history management system according to the next invention stores parameters for determining functions and specifications of a controlled machine and a control device, and changes a part of the stored plurality of parameters. Requesting the input of the reason for change, inputting the reason for change in response to the input request, storing the input reason for change in correspondence with a part of the changed parameter, and storing the parameter change history according to the reason for change. Therefore, the reason for the change corresponding to each parameter is clarified, and the validity of the change of each parameter is automatically confirmed to prevent the incorrect setting and prevent the incorrect cutting due to the incorrect setting of the parameter. Can be prevented.

A parameter change history management system according to the next invention, when a part of the parameters is changed,
Since the old parameter before the change and the change reason corresponding to the old parameter are saved and the saved old parameter and the change reason corresponding to the old parameter are stored, the change history of each parameter in the past can be clarified. Therefore, it is possible to easily restore the desired parameter state in the past.

A parameter change history management system according to the next invention sets an identifier indicating a change in the position of a parameter in response to a partial change in the parameter, and stores the set identifier. The reason for change corresponding to the change of each parameter can be easily searched, and the batch change of parameters can be accurately grasped based on the identifier, and the change frequency can be easily recognized.

A parameter change history management system according to the next invention requests display of a desired change reason among the stored change reasons, and the requested parameter and / or
Alternatively, the parameter change history is arbitrarily edited based on the reason for change, and the edited parameter change history is displayed. Therefore, the reason for changing each parameter can be visually recognized, and the visibility is improved by editing the display content. Because it is possible to confirm visually,
The accuracy of the confirmation can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a numerical control device according to a first embodiment.

FIG. 2 is an explanatory diagram showing a layout of a setting display screen of the numerical control device according to the first embodiment.

FIG. 3 is an explanatory diagram showing another layout of the setting display screen of the numerical control device according to the first embodiment.

FIG. 4 is an explanatory diagram showing another layout of the setting display screen of the numerical control device according to the first embodiment.

FIG. 5 is a block diagram showing a configuration of a numerical control device according to a second embodiment.

FIG. 6 is an explanatory diagram showing a layout of a setting display screen of the numerical control device according to the second embodiment.

FIG. 7 is an explanatory diagram showing another layout of the setting display screen of the numerical control device according to the second embodiment.

FIG. 8 is an explanatory diagram showing another layout of the setting display screen of the numerical control device according to the second embodiment.

FIG. 9 is an explanatory diagram showing another layout of the setting display screen of the numerical control device according to the second embodiment.

FIG. 10 is a block diagram showing a configuration of a conventional numerical control device.

[Explanation of symbols]

1 digital input / output unit, 2A, 2B, 2C arithmetic control unit, 3 data memory, 4 program memory, 5 analysis unit, 6 parameter memory, 7 machine control unit, 8 drive unit, 9 machine tool, 10 setting display control unit, 11 setting display unit, 12 change reason storage memory, 13 save control unit, 14 save storage memory, 15 parameter change identifier storage memory, 16 parameter change identifier setting unit,
17 Change history control unit

Claims (8)

[Claims] 1. A parameter storage means for storing parameters for determining functions, specifications, etc. of a controlled machine and a control device, and a change reason for collectively changing all of a plurality of parameters stored in the parameter storage means. Change reason input request means for requesting the input of the change reason, change reason input means for inputting the change reason in response to the input request by the change reason input request means, and the change reason input by the change reason input means as the parameter. A parameter change history management system, comprising: a change reason storage unit that stores the parameter change history correspondingly and stores the parameter change history according to the change reason. 2. A saving control means for saving the old parameter before the change and the reason for the change corresponding to the old parameter when the change of the parameter is completed, and the old parameter saved by the save control means and The parameter change history management system according to claim 1, further comprising a save information storage unit that stores a change reason corresponding to the old parameter. 3. An identifier setting means for setting an identifier indicating a parameter change corresponding to the parameter change,
An identifier storage unit that stores the identifier set by the identifier setting unit is provided.
Alternatively, the parameter change history management system described in 2. 4. A change reason display requesting means for requesting display of a desired change reason among the change reasons stored in the change reason storing means, and a change reason requested by the change reason display requesting means. 4. The parameter change history management system according to claim 1, further comprising a change reason display means. 5. A parameter storage unit for storing parameters that determine functions and specifications of a controlled machine and a control device, and a change for changing a part of a plurality of parameters stored in the parameter storage unit. Change reason input requesting means for requesting input of reason, change reason inputting means for inputting change reason in response to input request by the change reason input requesting means, and change reason input by the change reason inputting means A parameter change history management system comprising: a change reason storage unit that stores the parameter change history corresponding to a part of the created parameter and stores the parameter change history according to the change reason. 6. The saving control means for saving the old parameter before the change and the reason for the change corresponding to the old parameter when the partial change of the parameter is completed, and the saving control means saved by the saving control means. The parameter change history management system according to claim 5, further comprising: save information storage means for storing the old parameter and the reason for the change corresponding to the old parameter. 7. An identifier setting means for setting an identifier indicating a change of the position of the parameter corresponding to a change of a part of the parameter, and an identifier storage means for storing the identifier set by the identifier setting means. The parameter change history management system according to claim 5 or 6, wherein 8. A change reason display requesting means for requesting display of a desired change reason among the change reasons stored in the change reason storing means, and a parameter and / or a change reason requested by the change reason displaying means. Change history control means for arbitrarily editing the parameter change history based on
8. A parameter change history management system according to claim 5, further comprising a change history display means for displaying a parameter change history edited by the change history control means.