JPS60262209A - Numerical controller - Google Patents

Abstract

PURPOSE:To attain an easy remote fault diagnosis by connecting on a serial line a display part and a key input part of an NC device. CONSTITUTION:An IOC2 is connected serially to a CRT control CPU10, and a CRT3 and a keyboard 4 are connected to the CPU10. In a remote diagnosis mode a changeover switch 12 of an NC device is first switched to the side of an acoustic coupler 13. Then the transfer speed on a serial line is set again in accordance with the coupler 13. In such a way, the connection is effective between a CRT control part 14 of the NC device and a CRT control part 16 at the remote diagnosis side. Thus the remote control is possible for both the key operations and a CRT display of a normal NC device. In this case, a remote diagnosis is also possible with use of a normal self-diagnosis function.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a numerical control (NO) device that enables diagnosis from a remote location.

[Prior Art] The configuration of a conventional NG device is shown in FIG. 2. In this figure, (1) is the CPU (Central Processing Unit) that controls the entire NG device, and (2) is the IOC (Input/Output Control Unit) that controls input/output with various input/output devices. be. (3
) and (4) are a CRT and a keyboard, respectively, which serve as man-machine interfaces with the operator, and (5)
is a paper tape input device, (6) is a control programmer 1 and a control memory in which data is stored, (7) is a sequencer that performs sequence processing of the machine tool, (8) is a machine control unit that performs servo-related control, = ) (MCU) , (9
) is the drive motor that moves the axis.

In order to perform remote diagnosis with a conventional NG device having the above configuration, special hardware and software for diagnosis must be added, for example, 100 (2) as shown in Figure 3. serial interface (17
) and an acoustic coupler (13), and it is also necessary to prepare special software, making remote diagnosis difficult to realize in practice due to cost issues and other factors.

In such conventional NG devices, special hardware and software must be used for remote diagnosis, and the NG devices delivered to customers from service stations, etc.
It has been difficult to perform remote diagnosis of O equipment.

[Summary of the Invention] This invention was made in order to eliminate the drawbacks of the conventional ones as described in 1. Remote failure can be easily prevented by connecting the display section and key manual section of the NC device with a serial line. This provides an NC device that can perform diagnosis.

[Embodiment of the Invention] An embodiment of the present invention will now be described with reference to the drawings. 1st
In the figure, (1) to (9) are analogous to Figure 2. However, 10G (2) is CRT control GPU (10)
serially connected to CRT (3), keyboard (4)
is connected under the CRT control CPU. (11) is CR
This is a memory in which programs and data for performing T control are stored.

Also, does (12) perform remote diagnosis?
A changeover switch for selecting whether to perform an i-turn, (13
) is an acoustic coupler, and (14) is equipped with each of the above configurations, and is called a CRT control mechanism for convenience.

(15) and (18) are generally placed in a place far away from the NC device, such as a service station, and (15) is an acoustic coupler paired with the RF arm coupler (13); (16) is completely the same as the CRT control section (14), and is a CRT control section for remote diagnosis.

Next, I will explain the procedure for remote fault diagnosis.
In this embodiment, no special hardware or software is required to perform remote diagnosis. Inside the NC device, there is simply a changeover switch (12) and an IOC: (2).
) and a function to adjust the transfer speed of the serial line between the CRT control CPU (10).

When performing remote diagnosis, first, the changeover switch (12) in the NC device is switched to the acoustic coupler (13) side, and the transfer rate of the serial line is reset to match the acoustic coupler (13). Through such operations, the CRT of the NC device
The control unit (14) includes a remote diagnosis example CRT control unit (16).
), and normal NC device key operations and CR7 display can be performed from a remote location. NC in this state
Remote diagnosis can be performed using the device's normal self-diagnosis function.

In addition, in the above embodiment, the acoustic coupler (+3).

Although (15) is used, the NC device and the CRT control unit for remote diagnosis (16) may be directly connected through a modem.

[Effects of the Invention] As described in J.2 below, according to the present invention, the CRT control section of a normal NC device is configured to serve as a device for remote diagnosis, so there is no need to provide special hardware or software. remote diagnosis is possible without

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an example of the configuration of an NC device according to an embodiment of the present invention, and FIGS. 2 and 3 are configuration diagrams showing conventional NC devices, respectively. (1)...CPU, (2)...10G, (3)...
...CRT, (+3), (15)...acoustic coupler,
(14), (IS)...CRT control unit. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Masuo Oiwa Figure 2 Figure 3

Claims (1)

[Claims] A numerical control device characterized in that remote diagnosis can be performed through a 1°1 blue coupler or the like by serially connecting a CRT control unit consisting of a CRT9i and a key manual device to the main body CPU.