JPS60262210A - Numerical controller - Google Patents

Abstract

PURPOSE:To attain an easy remote diagnosis of an NC device by providing an off-line monitor into the NC device. CONSTITUTION:An acoustic coupler 12 is connected to a serial IO interface 10 to attain connection to a CRT terminal 14 set at a service center of a remote place. In a remote diagnosis mode an NC controller is first put in an off-line monitor operation mode to reset a CPU. Thus an operation is possible at the terminal 14, and a remote diagnosis is possible owing to a function for display of memory contents. This attains a diagnosis of an NC device in an exactly same method as a case where the diagnosis is carried out at the side of the NC device.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a numerical control (NG) device, and particularly to one that enables remote diagnosis from a remote location.

[Prior Art] The configuration of a conventional NC device is shown in FIG. In this figure, (1) is a CPU (central processing unit) that controls the entire NC device, and (2) is an 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)
(6) is a control memory where control programs and data are 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) ) and (9) are drive motors that move the shafts. (10) is the serial interface (paper tape puncher, cassette)
Devices with various serial interfaces such as MT are connected.

In order to perform remote diagnosis in an NC device with such a configuration, a dedicated diagnostic program must be prepared in the control memory (8), and a serial IO interface (l) must be prepared.
It is necessary to connect to a host computer at a service center or the like using a computer (O), which poses problems in terms of cost and the like.

In order to carry out remote diagnosis using such a conventional NC device, it is necessary to prepare a host computer or the like at a remote location, which leads to problems in terms of system complexity and cost.

[Summary of the Invention] The present invention was made in order to eliminate the drawbacks of the conventional ones as described above, and provides an NG device that can be easily diagnosed remotely by providing an offline monitor in the NC control device. It is something to do.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. ]
In the figure, (1) to (lO) are the same as in FIG. (12) is an acoustic coupler, which is paired with an acoustic coupler (13) placed at a service station in a remote location to communicate data between remote locations. (14) is a CRT terminal, and (15) is a keyboard formerly located in a CIIIT terminal. Further, (11) is a ROM (read only memory) for storing an offline monitor, which will be explained later.

Normally, the serial 0 interface (10) is directly connected to a CRT terminal (14) when diagnosing the system, and serves as an offline monitor (14) that has functions such as displaying and changing memory contents and checking input/output ports. 11)
is operated through this CRT terminal (14).

In the present invention, an acoustic coupler (12) is connected to a serial IO interface (10), which is connected to a CRT terminal (14) installed at a remote service center.

Therefore, with the above configuration, remote diagnosis can be performed using the following procedure. When performing remote diagnosis, first set the NG control device to offline monitor operation mode and reset the CPU. This operation enables operation from the CRT terminal (14) installed at a remote service center, and the memory contents described above are Functions such as the display enable remote diagnosis. The diagnosis of the NG device can be performed in exactly the same way as when the NG device is located at the service center.

Although an acoustic coupler is used in the above embodiment, it is also possible to perform remote diagnosis with the NG device directly through a modem.

[Effects of the Invention] As described above, according to the present invention, remote diagnostic processing is easily possible using an acoustic coupler, an offline monitor, and a CART terminal, and a highly reliable system can be constructed at low cost as a whole.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a configuration example of an NG device according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional example. (1)...CPU, (2)...10G, (3)...CRT, (10)...Serial IO interface, (l l
)...Offline monitor ROM, (12), (+3
)...Acoustic coupler, (14)...CRT terminal. Note that each reference numeral in the figure indicates the same or corresponding part. Agent Masu Oiwa 1dl (-Next)

Claims (1)

[Claims] A numerical control device characterized in that an offline monitor using a CRT device as a terminal is provided in the numerical control device, and remote diagnosis can be performed from a remote location by remotely operating this offline monitor through an acoustic converter or the like.