JPS61199109A - Remote control system for numerical control device - Google Patents

Abstract

PURPOSE:To make operations and monitor possible without going to a numerical control device in a remote place by connecting numerical control devices with a telephone line and operating the device in the remote place by the operation board of the device at hand and monitoring the device state at hand. CONSTITUTION:Key switch data of an operation board 4 of a numerical control device 8a installed in a service center is outputted from a connecting means 90 and is inputted to the connecting means 90 of a control unit 1 of a numerical control device 8b in the plant side through a telephone line 12. The unit 1 of the device 8b performs the data processing on a basis of this input data and outputs the result to a CRT control unit 2 and the means 90 as display data. Display data from the means 90 is inputted to the means 90 of the control unit 1 of the device 8a through the line 12. The unit 1 sends display data to the CRT control unit 2 of the device 8a on a basis of this inputted display data to display it on a CRT display device 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a remote control system for numerical control devices that allows remote control between a plurality of numerical control devices using a telephone line.

[Conventional technology]

FIG. 3 is a configuration diagram showing the configuration of a conventional numerical control device 8, where l is a main body control unit, 2 is a CRT (Cathode
eRayTube) control unit, 3 is a CRT display device, 4 is an operation board, 5 is CMT (cassette magnetic tape) used in the numerical control device 8, FT
These are various input/output devices such as P (paper tape puncher).

FIG. 4 is a conventional system configuration diagram when a plurality of numerical control devices 8 shown in FIG. 3 are connected to a host computer 6. In the figure, as an example, three numerical control devices 8 They are commonly connected and managed by a line 7 such as RS232C.

In the conventional numerical control device having the above configuration, the key switch (not shown) on the operation board 3 is operated, and the key switch data on the operation board 3 is transmitted to the main body control unit 1.
will be processed. The device status at this time is transmitted as CRT display data from the main body control unit 1 to the CRT control unit 2, and the CRT display data is processed by the CRT control unit 2 and displayed on the CRT display device 3.

Input/output of data such as processing programs is performed by selecting the input/output device 5 such as CMT, data cassette recorder (not shown), FTP (not shown), PTR (parallel tape reader), or the like. In addition, when it is desired to transfer the machining program and data such as parameters of one numerical control device 8 to another numerical control device 8, it is configured so that it can be done indirectly using the above-mentioned device. .

Further, the numerical control device 8 connected to the host computer 6 shown in FIG. 4 is managed by the host computer 6, such as transferring machining programs and grasping the status of the numerical control device 8.

[Problem that the invention seeks to solve]

Conventional numerical control devices are configured as described above, but there is no input/output system between remote devices, and in order to know the status of the device, a large scale computer using a host computer is required as shown in Figure 4. There is no other option than to configure it with a large-scale system, and even if such a large-scale system is adopted, it is difficult to send the machining program to a numerical control device in a very close location, or to check the operating status of the device. For example, if a problem occurs with a numerical control device and the devices are located far away, there is no system to directly know the status of those devices, so it is difficult to know the status of the numerical control device that caused the problem. In order to find out about the equipment, K could only do so by explaining over the phone or writing a report of the inconvenience, and in order to check the detailed status of the equipment and perform tests, K had no choice but to go to the installation site. .

This invention was made to solve the above-mentioned problems, and allows a numerical control device installed at a distance to be remotely controlled by a numerical control device installed at hand. The objective is to obtain a remote-operable numerical control device that can be used to grasp, test, or monitor detailed device status.

[Means for solving problems]

The remote control system according to the present invention directly connects the numerical control devices via a public line, and transmits and receives various data between the numerical control device installed far away and the numerical control device installed at hand. The operation board of the installed numerical control device is used to operate the numerical control device installed at a distance, and the status of the device installed at a distance is monitored by the numerical control device installed at hand.

[For production]

Since remote numerical control devices can be directly connected via public lines and data can be sent and received, there is no need to travel far away even if an inconvenience occurs at a customer's site or other distant location. This makes it possible to grasp the detailed status of the numerical control device in which a problem has occurred, and to directly input and output data such as tests, monitoring, and machining programs.

〔Example〕

FIG. 1 is a block diagram showing a remote control system for a numerical control device according to an embodiment of the present invention.
are exactly the same as the same reference numerals in FIG. 8a, 8
b are numerical control devices having exactly the same configuration; in FIG. 1, the numerical control device 8a is installed at a local service center, and the numerical control device 8b is installed at a distant factory far away from the service center. Indicates the case where In the figure,
9a.

9b is an RS232C terminal 90 (connection means) provided in the main body control unit 1 in each numerical control device 8a, 8b.
These cables are connected to modems 10a and 10b (or an acoustic coupler, not shown), respectively.

11a and llb are setting switches, numerical control device 8
It is equipped with a switch for connecting the ap8b and the telephone line 12 side, and a switch for setting whether the device is installed, for example, in the case of this embodiment, in a factory or a service center. 12 is a telephone line such as a public line, 13a*1db is a telephone set 14a,
14b side and the numerical control device 8a, 8b side. In the remote control system configured as above,
The operator of the round numerical control device 8b installed in a customer's factory or the like and the operator of the numerical control device 8a installed in a service center first make an agreement over the phone, and then make the above-mentioned setting switch 11a.

11b and changeover switches 13a and 13b, the remote control system is activated, and the telephone line 12 is connected between the numerical control device 8b installed in a factory or the like and the numerical control device 8a installed in a service center or the like. For example, a key switch (not shown) on the operation board 4 of the numerical control device 8a installed in the service center causes data transmission and reception to start via the CRT display device 3 in the numerical control device 8b installed in the factory. You can perform operations such as changing the screen or setting data, as well as performing tests.
The status of all the equipment installed in the factory is checked by the CR of the numerical control device 8a installed in the service center.
This can be confirmed on the T display device 3.

The flow of data between the numerical control devices 8aegb in this case is shown in the block diagram of FIG.

1 to 4 in the figure are exactly the same as the same reference numerals in FIG. Further, in the figure, relay devices for data transfer such as modems 10a and 10b are omitted to simplify the flow of data.

The key switch data of the operation board 4 of the numerical control device 8a installed in the service center is each RS23 in Fig. 1.
Modem 10a K output from 2C terminal 90 and telephone line 1
2, and is further inputted from the modem 10b on the factory side to the RS232C terminal 90 of the control unit (1) on the factory side. Based on this input data, the main body control unit 1 on the factory side performs data processing, and uses the results as display data for its own device (
CRT control unit 2 and RS23 of numerical controller sb)
Output to 2C terminal 90. The display data output from this RS232C90 is sent via the modem 10b1 telephone line 12, and further to the main body control unit 1 on the service center side.
Input to S232C terminal 90. Based on this input display data, the main body control unit 1 on the service center side controls the CRT control unit 2 of its own device (numerical control device 8m).
The display data is sent to and displayed on the CRT display device 3.

It is also possible to input and output tool data, machining programs, etc. to the numerical control devices 8a and 8b in the same manner as the above data flow.

Although the above embodiment uses the RS232C terminal 90 as the data output terminal of the numerical control device 8assb, other input/output terminals (for example, RS422, etc.) may be used and the same effect will be achieved.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to grasp and test the status of a numerical control device installed at a distance using a numerical control device installed at hand. Not only can it be modified, but it also has the very advantageous effect of being able to directly transfer data such as machining programs and parameters to distant numerical control devices via public lines.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a remote control system for a numerical control device according to an embodiment of the present invention, FIG. 2 is a block diagram for explaining the flow of data between the numerical control devices shown in FIG. 1, and FIG. 4 is a configuration diagram showing a conventional numerical control device, and FIG. 4 is a system configuration diagram showing a system when a plurality of numerical control devices shown in FIG. 3 are connected to a host computer. In the figure, 8a and 8b are numerical control devices, lOa*
10b is a modem, 12 is a telephone line, 13a and 13b are changeover switches, 14ae and 14b are telephones, and 90 is a connection means (RS232C terminal). In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (2)

[Claims] (1) In a remote control system for a numerical control device in which a plurality of numerical control devices are connected and data is input/output between the numerical control devices by operation from one of the numerical control devices, a plurality of modems provided through connection means corresponding to the respective devices and performing a signal interface; a plurality of changeover switches connected to the modems respectively and capable of switching between the telephone side and the numerical control device side; and a telephone line that connects these changeover switches, and when an operation from one of the numerical control devices is performed, data is directly input/output to and from the other numerical control device via the telephone line, and the other numerical control device 1. A remote control system for a numerical control device, characterized in that it is configured to grasp the status of, test, monitor, or input/output data such as machining programs. (2) The connection means is an RS provided in each numerical control device.
2. The remote control system for a numerical control device according to claim 1, wherein the remote control system is a data interface terminal such as a 232C terminal.