JPH07114406A - Numerical controller - Google Patents

Abstract

PURPOSE:To provide a numerical controller capable of simply editing content of output address in a common memory. CONSTITUTION:The controller is provided with a numerical control means 2 able to execute a macro I/O output instruction executing the numerical control information, a sequence control means 4 operated according to the sequence control information based on the macro I/O output instruction, a common memory 3 giving/receiving data between the numerical control means 2 and the sequence control means 4, and also with an output address edit means 8 editing content of output address in a common memory storing data outputted from the numerical control means 2 to the sequence control means 4 and a switch means 9 closed to start the processing by the output address edit means 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a macro I capable of outputting an I / O for controlling a machine tool or the like by a macro instruction.
The present invention relates to a numerical controller having an I / O output function.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, a numerical control device generally controls a numerical control means 2 for executing numerical control information such as a machining program and a drive unit such as a machine tool. The numerical control information storage means 1 for storing the numerical control information described above is connected to the numerical control means 2 and the sequence control means 4 operates. The sequence control information storage means 5 for storing the sequence control information of is connected. The aforementioned numerical control means 2 and sequence control means 4 are connected via a common memory 3 for exchanging data. Further, the sequence control means 4 is provided with an actuator 7 which is a drive unit of a machine tool or the like. , And is connected via an input / output interface 6 for inputting / outputting data.

When it is desired to perform control peculiar to the machine, which is not provided as a standard function in an ordinary numerical controller, when a macro variable which is a part of the common memory 3 is commanded by a machining program, the peculiar control is By editing the sequence control information so that it can be performed, the sequence control means 4
There is a numerical controller having a macro I / O output function capable of outputting command data from the actuator to the actuator 7.

Next, the difference between the processing by the numerical controller having the above-mentioned structure and the case of using the M code and the case of using the macro I / O output command will be described taking the spindle rotation as an example. Here, a programmable controller (hereinafter abbreviated as PC) 13 is used as the sequence control means.

FIG. 4 shows a case where the spindle is rotated by the M code. First, in normal operation, when the M3 instruction of the machining program of NC11 is executed, NC11 and PC1
3 commonly used by the common memory 12 (F *.
*) Turns on (p1). The PC 13 uses this address (F
*. When ON of *) is detected (p2), information such as the emergency stop button is considered and the address (Y *. *) Is turned on (p3) and the address (Y *. *) Is self-maintained (p4). . When the address (Y *. *) Of the common memory 12 is turned on, the spindle of the machine 14 starts rotating (p
5). Here, the address (F *. *) Is the NC → PC output address, and the address (Y *. *) Is the external output address.

Next, when the spindle reaches the rotational speed commanded in advance, the address (XΔ.Δ) of the common memory 12 is turned on (p6). The PC 13 monitors this (p
7) If the address (F *. *) Satisfies the ON condition (currently in that state), the address (G *. *) Indicating completion (Mfin) to the M code command is turned on (p8). . When the NC 11 detects this (p9), the address (F *. *) Of the common memory 12 is turned off (p
10). Then, the PC 13 sends this address (F *.
OFF of (*) is detected (p11), and the address (G *.
Turn off *) (p12). Address (F *. *)
Even if is turned off, the address (Y *. *) Remains on because it is held by itself.

On the other hand, if the emergency stop button is pressed for some reason while the spindle is rotating, the address (X *. *) Of the common memory 12 is turned on (p13). The PC 13 detects it (p14) and sets the address (Y *. *) To OF.
At F (p15), the spindle rotation is stopped (p16), and at the same time, the address (GΔ.Δ) is set for reset processing.
Is turned on (p17). Then, NC11 detects ON of this address (GΔ.Δ) (p18), and NC
→ Turn off the PC output address (p10). In other words, the address (F *. *) That was in the ON state by the M3 command was changed to OF even before the spindle reached the command rotation speed.
Set to F. Therefore, even if the emergency stop is released, the address (F
*. Since *) is in the OFF state, the spindle will not start rotating again.

The above-mentioned address (XΔ.Δ) and address (X *. *) Are external input addresses and addresses (G *. *).
*) And address (GΔ.Δ) are PC → NC input addresses.

Next, FIG. 5 shows a case where the spindle is rotated by the macro I / O output function. First, in the normal operation, when the macro I / O output instruction # 1100 = 1 of the machining program of the NC 11 is executed, the address (F .. ▲) of the common memory 12 is turned on (q1). When the PC 13 detects that the address (F ...) is ON (q2), the address (Y *.
Turn on *) (q3). When the address (Y *. *) Of the common memory 12 is turned on, the spindle of the machine 14 starts rotating (q4). Here, the address (F ▲. ▲) is the NC → PC output address of the macro variable used for the macro I / O output, and the address (Y *. *) Is the external output address. After that, the machining program macro I
When the / O output instruction # 1100 = 0 is executed, the address (F .. ▲) of the common memory 12 is turned off (q5),
When the PC 13 detects it (q6), the address (Y *.
Turn OFF *) (q7) Spindle rotation is stopped (q
8).

On the other hand, if the emergency stop button is pressed for some reason while the spindle is rotating, the address (X *. *) Of the common memory 12 is turned on (q9). The PC 13 detects it (q10) and turns off the address (Y *. *).
Then (q7) to stop the spindle rotation (q8),
Turn on the address (G △. △) to perform reset processing
(Q11). Then, the NC 11 detects that the address (GΔ.Δ) is ON (q12), but only the NC → PC output address other than the macro variable used for the macro I / O output is turned OFF (q13).
The address (F .. ▲) that has been turned on by the execution of the / O output instruction # 1100 = 1 remains in the ON state.

This is because it is impossible to know which macro variable NC → PC output address is based on what sequence control information and which actuator is operated. Therefore, the NC 11 is unnecessarily macro variable NC → PC.
The contents of the output address could not be edited (OFF).

[0012]

Therefore, in the method using the macro I / O output instruction, the address (F.
To turn off ▲), use the macro I /
The O output instruction # 1100 = 0 must be executed.
However, since the machining program cannot be executed in the emergency stop state, the emergency stop state must be canceled. At that time, the PC 13 detects that the address (F ▲. ▲) is in the ON state and executes the above command. There is a problem that the spindle will start to rotate again before it does.

Therefore, for example, when the axis is moved by the macro I / O output command, the address corresponding to the axis movement is turned off even if the interference due to the program mistake or the like is avoided immediately before by the emergency stop button. In order to do so, the emergency stop state had to be canceled, and the axis movement was restarted, so interference was unavoidable.

An object of the present invention is to provide a numerical control device which can easily edit the contents of an output address in a common memory in consideration of such problems of the conventional numerical control device.

[0015]

SUMMARY OF THE INVENTION The present invention provides a numerical control information storage means for storing numerical control information, a numerical control means capable of executing a macro I / O output instruction for executing the numerical control information, and sequence control information. , A sequence control information storage means for storing data, a sequence control means for operating according to the sequence control information based on a macro I / O output command, and a common memory for passing data between the numerical control means and the sequence control means. And a sequence control means having an actuator such as a machine tool and an input / output means for exchanging data, an output in a common memory for storing data output to the sequence control means by the numeric control means. An output address editing means for editing the contents of the address, and a process by the output address editing means are started. A numerical controller and a switching means.

[0016]

According to the present invention, the contents of the output address in the common memory in which the switch means starts the processing by the output address editing means and the output address editing means stores the data which the numerical control means outputs to the sequence control means. Edit.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing its embodiments.

FIG. 1 is a block diagram of a numerical controller according to an embodiment of the present invention. The same components as those in the conventional example are designated by the same reference numerals, and the description thereof will be omitted. Numerical control means 2
Of macro variables output from the sequence controller 4 to the sequence controller 4
An output address editing means 8 for editing the contents of the C → PC output address is provided, and the output address editing means 8 is connected to a switch means 9 for operating it.

The above-mentioned output address editing means 8 edits so as to clear all the NC → PC output addresses of the macro variable in the common memory 3 in response to a command from the switch means 9, for example.

Next, the processing operation of this embodiment will be described with reference to FIG.

First, by pressing the <MCR> key on the operation panel, a macro variable screen as shown in FIG. 2A is displayed. After that, by further pressing the <MCR> key, the macro variable switch screen as shown in FIG. 2B is displayed, and the key <CLR> for clearing all NC → PC output addresses of the macro variable is displayed. This <CL
When the R> key is pressed, a clear screen as shown in FIG. 2C is displayed, and the <yes> key which is the switch means 9 is displayed. When this <yes> key is pressed, a processing command is output to the output address editing means 8, and the output address editing means 8 is NC → PC of the macro variable in the common memory 3.
Edit to clear all output addresses.

As described above, all the macro variable NC → PC output addresses in the common memory 3 can be cleared by the switch means 9. Therefore, for example, the drive unit is operated by the macro I / O output function. Even if the emergency stop state occurs due to some reason, the output address editing means clears the macro variable NC → PC output address in the common memory by operating the switch means, so the emergency stop state is released. However, the driving unit does not operate and the safety is improved.

In the above embodiment, the output address editing means 8 is controlled by the switch means 9 to cause the output address editing means 8 to operate in the common memory 3.
Editing was performed so as to clear all of the NC → PC output addresses of the macro variable in the above. However, as shown in FIG. 3, the editing address designating means 10 capable of designating the address to be edited.
The output address editing means 8 may edit only the address specified by the edit address specifying means 10 among the NC → PC output addresses of the macro variable in the common memory 3.

In the above embodiment, the output address editing means 8 edits the contents of the NC → PC output address of the macro variable. However, the present invention is not limited to this, and the contents of the NC → PC output address of other than the macro variable. May be configured to be edited.

Further, each means constituting the above-mentioned embodiment may be constituted by software using a computer, or may be constituted by dedicated hardware having a similar function.

[0026]

As is apparent from the above description, the present invention comprises the output address editing means for editing the contents of the output address in the common memory, and the switching means for starting the processing by the output address editing means. Since it is equipped with, there is an advantage that the contents of the output address in the common memory can be easily edited.

Therefore, for example, when the drive unit is operated by the macro I / O output function, even if the emergency stop state is brought about for some reason, the output address editing means is operated by the switch means by operating the switch means. Since the NC-> PC output address of the macro variable in is cleared, the drive unit does not operate even if the emergency stop state is released, and the safety is improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a numerical controller according to an embodiment of the present invention.

2A, 2B, and 2C are diagrams showing examples of display screens for changing the setting of macro variables in the embodiment.

FIG. 3 is a configuration diagram of a numerical controller according to another embodiment of the present invention.

FIG. 4 is a diagram showing an example of an operation using an M code in a conventional example.

FIG. 5 is a diagram showing an example of an operation by a macro I / O output instruction in a conventional example.

FIG. 6 is a configuration diagram of a conventional numerical control device.

[Explanation of symbols]

 1 Numerical Control Information Storage Means 2 Numerical Value Control Means 3 Common Memory 4 Sequence Control Means 5 Sequence Control Information Storage Means 6 Input / Output Interface 7 Actuator 8 Output Address Editing Means 9 Switch Means 10 Editing Address Designating Means 11 NC 12 Common Memory 13 PC

Claims (3)

[Claims] 1. A numerical control information storage means for storing numerical control information, a numerical control means capable of executing a macro I / O output command for executing the numerical control information, and a sequence control information storage for storing sequence control information. Means, sequence control means that operates according to the sequence control information based on the macro I / O output command, common memory for passing data between the numerical control means and the sequence control means, and In a numerical control device in which the sequence control means includes an actuator such as a machine tool and an input / output means for transferring data, an output in a common memory for storing data output by the numerical control means to the sequence control means The output address editing means for editing the contents of the address and the processing by the output address editing means are started. A numerical control device, comprising: a switch means for switching. 2. The output address editing means stores the contents of an output address in a common memory for storing the data output by the macro I / O output among the data output by the numerical control means to the sequence control means. The numerical controller according to claim 1, wherein the numerical controller is edited. 3. An edit address designating unit for designating an output address desired to be edited by the output address editing unit, wherein the output address editing unit edits only the contents of the output address designated by the edit address designating unit. The numerical control device according to claim 1, wherein the numerical control device is characterized.