JPH04316103A - Remote diagnostic device for numerical controller - Google Patents

Abstract

PURPOSE:To enable an operator at a remote place to confirm the stoppage of an NC machine by making the switching of the telephone line for starting remote diagnoses easier and, at the same time, to convey the message of a diagnosed result to the operator without changing the process or function of a CNC. CONSTITUTION:A message storing means 310 stores the message of a diagnosed result transmitted to a diagnostic data transmitting device 3 from terminal equipment 4. A message displaying means 311 synthesizes the message of diagnosed result with picture data and displays the synthesized data on the CRT 21 of a numerical controller.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a numerical control device in which the operating state of the numerical control device can be diagnosed by the terminal device by communicating between the numerical control device and a terminal device located at a remote location. Related to remote diagnostic equipment.

0002

2. Description of the Related Art FIG. 7 is a block diagram showing an example of a conventional remote diagnostic device for a numerical control device. Numerical control device (
In the CNC) 1, the data stored in the data memory 13 is read into the CPU 11 and analyzed according to the program stored in the program memory 12, and the data is transferred between the operation panel control section 14 and the machine control section interface 15 according to the analysis result. data transfer is controlled. The page operation command SA entered by the operator from the keyboard 22 of the operation panel 2 attached to the CNC 1 is read into the operation panel control section 14 in the CNC 1 via the synthesis circuit 39 in the diagnostic data transmitter 3 and analyzed. Then, image data SB according to the operating state of the CNC 1 is created and displayed on the CRT 21 of the operation panel 2 via the distributor 38 in the diagnostic data transmitting device 3. Also, CN
In the diagnostic data transmitting device 3 attached to C1, the data stored in the data memory 33 is transmitted to the CPU 31 according to the program stored in the program memory 32.
The page operation means 34, image storage means 36, communication means 37, and distributor 38
The transfer of data between the synthesis circuit 39 and the synthesis circuit 39 is controlled.

On the other hand, in the terminal device 4 located at a remote location with respect to the CNC 1, the data stored in the data memory 43 is read and analyzed by the CPU 41 according to the program stored in the program memory 42, and the data is analyzed according to the analysis result. Image storage means 44, communication means 46, CRT4
7 and the keyboard 48 are controlled. Then, the page operation command SA' input by the operator from the keyboard 48 is read into the communication means 46 and transmitted to the communication means 37 in the diagnostic data transmitting device 3 via the telephone line TL. The page operation command SA' read into the communication means 37 is sent to the page operation means 34,
Further, the data is sent to the operation panel control section 14 in the CNC 1 via the synthesis circuit 39, and page switching is performed according to the page operation command SA', and image data SB of the page is created and stored in the diagnostic data transmitting device 3. The image is stored in the image storage means 36 via the distributor 38. The image data SB stored in the image storage means 36 is read into the communication means 37,
The data is compressed and transmitted to the communication means 46 in the terminal device 4 via the telephone line TL, and the data is converted from the compressed state to its original state and stored in the image storage means 44. The image data SB stored in the image storage means 44 is stored on the CRT 4.
7 to be sent and displayed.

0004

[Problems to be Solved by the Invention] In the conventional remote diagnosis device described above, it is difficult to easily switch the telephone line when starting remote diagnosis, or to switch the NC line before starting remote diagnosis.
It was difficult for a remote technician to determine whether the machine was safely stopped. In addition, in order to convey the diagnosis results to the operator after performing remote diagnosis, it is necessary to change the processing and functions of the CNC, and it is not as easy to change the processing and functions of the CNC as with NC machines that are already in operation. In some cases, it was difficult to add diagnostic functions.

The present invention was made in view of the above-mentioned circumstances, and an object of the present invention is to easily switch the telephone line for starting remote diagnosis, and to ensure that the NC machine is safe before starting remote diagnosis. CNC functions and processing allow a technician in a remote location to easily confirm that the machine is stopped, and also to send a message of the diagnosis results from the remote technician to the operator after performing a remote diagnosis. An object of the present invention is to provide a remote diagnosis device for a numerical control device that can be used without any modification.

[0006]

[Means for Solving the Problems] The present invention transmits image data from a diagnostic data transmitting device attached to a numerical control device to a terminal device located at a remote location, so that the operating state of the numerical control device can be transmitted to the terminal device. The present invention relates to a remote diagnostic device for a numerical control device that can diagnose the operating state of the numerical control device using the terminal device. , a message storage means for storing a diagnosis result message transmitted from the terminal device to the diagnosis data transmitting device; and a display means of the numerical control device that performs a logical sum of the image data and the diagnosis result message. This is achieved by providing a message display means for displaying the message.

[0007]

[Operation] Since the present invention is provided with a means for switching between the diagnostic communication mode and the non-diagnostic communication mode, the operator can switch between the diagnostic communication mode and the non-diagnostic communication mode by simply pressing the mode changeover switch. It can be performed. It also includes a means to decipher operator input, allowing a remote technician to confirm whether the NC machine is safely stopped. moreover,
Since it is equipped with a means to display a message of diagnosis results from a technician at a remote location, there is no need to change the processing or functions of the CNC.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing an example of a remote diagnostic device for a numerical control device according to the present invention, corresponding to FIG.
Identical constituent parts are given the same reference numerals and explanations will be omitted. When the operator operates the mode changeover switch 315 of the diagnostic data transmitting device 3, a mode change command SC is input to the mode switching means 314, and the diagnostic data transmitting device 3 is switched to the diagnostic communication mode or the non-diagnostic communication mode. When the mode is switched to the diagnostic communication mode, a message SD stored in the message storage means 310 for confirming whether or not to start remote diagnosis is displayed on the CRT 21 of the operation panel 2 via the message display means 311. When the operator operates the keyboard 22 of the operation panel 2, a diagnosis start permission command SE is inputted to the input decoding means 313 via the key data distributor 312. If the diagnosis can be started, the communication means 37 is enabled for remote diagnosis communication, and the diagnosis operation is started via the telephone line TL by the remote technician operating the terminal device 4. If the diagnosis is not to be started, the telephone line TL is not connected, and the serially connected telephones ring to notify the operator that preparations for remote diagnosis are not complete.

A technician located at a remote location detects the state of the CNC 1 and performs a diagnosis using the terminal device 4 in the same manner as in the conventional device, and a message SF representing the diagnosis result is transmitted from the keyboard 48 of the terminal device 4 to the communication means 46 and the diagnostic data. Transmitting device 3
The message is stored in the message storage means 310 via the communication means 37 of. The message SF of the diagnosis result stored in the message storage means 310 is read out by the message display means 311, and is part of the image data SB sent from the operation panel control section 14 of the CNC 1 to the message display means 311 via the distributor 38. part is rewritten into a message SF of the diagnosis result and displayed on the CRT 21 of the operation panel 2.

FIG. 2 is a block diagram showing an example of the circuit of the message display means 311, in which the synchronization signal Vsync of the image data SB sent from the operation panel control section 14 is input to the counter 51, and the synchronization signal Hsync is input to the counter 51. , 52, 53, and the base clock Vclk
is input to counters 53 and 54. When the synchronization signal Vsync is input to the counter 51, the counter 51 is initialized, the synchronization signal Hsync is counted, and the start row VS of the vertical message display area shown in FIG. 3 is determined. A counter 52 is initialized by the output of the counter 51, and the synchronization signal Hsync is counted to determine the end row VE of the vertical message display area shown in FIG. When the synchronization signal Hsync is input to the counter 53, the counter 53 is initialized, the base clock Vclk is counted, and the starting column HS of the horizontal message display area shown in FIG. 4 is determined. counter 5
The counter 54 is initialized by the output of 3, the base clock Vclk is counted, and the end column HE of the horizontal message display area shown in FIG. 4 is determined. These four counters 51, 52, 53, and 54 create a signal MA indicating a message display area as shown in FIG.

The message display area signal MA is input to the selector 58, and together with the base clock Vclk, the message display area signal MA is input to the selector 58.
/S (parallel-serial converter) 57 and address counter 59. And message storage means 3
The diagnosis result message SF from 10 is converted into a video signal SFV by a C/G (character generator) 56 and a P/S (parallel to serial converter) 57 and input to a selector 58 . Then, the selector 58 causes the CRT 21 of the operation panel 2 to display a diagnosis result message overwritten at an arbitrary position on the normal screen display as shown in FIG.

0012

As described above, according to the remote diagnostic device for a numerical control device of the present invention, when starting remote diagnosis, the operator shifts from the non-diagnostic communication mode to the diagnostic communication mode, and then Since the remote diagnosis is started after the technician confirms through dialogue with the operator that the NC machine is safely stopped, it is possible to start the remote diagnosis safely and efficiently. Furthermore, since there is no need to change CNC processing or functions, it is easy to add diagnostic functions.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an example of a remote diagnostic device for a numerical control device according to the present invention.

FIG. 2 is a block diagram showing an example of the main parts of the device of the present invention.

FIG. 3 is a first diagram illustrating a message display area in the device of the present invention.

FIG. 4 is a second diagram illustrating a message display area in the device of the present invention.

FIG. 5 is a third diagram illustrating a message display area in the device of the present invention.

FIG. 6 is a diagram showing an example of message display in the device of the present invention.

FIG. 7 is a block diagram showing an example of a conventional remote diagnostic device for a numerical control device.

[Explanation of symbols]

310 Message storage means 311 Message display means 312 Key data distributor 313 Input decoding means 314 Mode switching means 315 Mode changeover switch

Claims (4)

[Claims] 1. A numerical control system capable of diagnosing the operating state of the numerical control device using the terminal device by transmitting image data from a diagnostic data transmitting device attached to the numerical control device to a terminal device located at a remote location. In a remote diagnostic device for a device, a message storage means for storing a message of a diagnosis result sent from the terminal device to the diagnostic data transmitting device, and a message storage device that combines the image data and the diagnosis result message to the numerical control device. 1. A remote diagnostic device for a numerical control device, comprising: message display means for displaying a message on the display means. 2. The remote diagnostic device for a numerical control device according to claim 1, wherein a display area for the diagnostic result message is arbitrarily set using a synchronization signal of the image data. 3. The remote diagnostic device for a numerical control device according to claim 1, further comprising input decoding means for analyzing input to the diagnostic data transmitting device to determine whether or not the diagnosis can be started. 4. The numerical control device according to claim 1, further comprising mode switching means for switching the diagnostic data transmitting device to a diagnostic communication mode or a non-diagnostic communication mode in response to a mode switching command input to the diagnostic data transmitting device. Remote diagnostic equipment.