JPH021679A - Diagnosing method for transferring device - Google Patents

Abstract

PURPOSE:To realize a pseudo on-line test by connecting a diagnosing connector to an NC data transferring device directly or through a connection cable. CONSTITUTION:The diagnosing connector 8 is connected to the NC data transferring device 2 directly or through the connection cable 6. The connector 8 is constituted to fold back data sent from the device 2 and return it again to the device 2. Therefore, by connecting a diagnosis function executing part, a diagnosed result deciding part and a display control part to the device 2 previously, it can be decided whether the device is normal or abnormal or whether the place of the occurrence of a defect is inside the device or inside the cable 6 when the device is abnormal. Since the connector 8 folds back output data from the device 2, a transmitting side terminal signal RST and a terminal ready signal DTR, these signals can be diagnosed individually.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of diagnosing a transfer device, and more particularly to a method of self-diagnosis between an NC program transfer device and a numerical control device equipped with an online communication function.

[Conventional technology]

For example, when transferring a created NC program from a host control computer that creates an NC program to a numerical control device online for processing, it would be helpful if there was a method to test whether or not the data can be transferred accurately. It is also convenient from a gender perspective.

Conventionally, as shown in FIG. 5(a), the connection connector 4a of the input/output board 4 provided in the NC data transfer device 2 and the connection connector 6a of one of the data transfer cables 6 are connected, and at the same time, the numerical control Connect the connector 5a of the cable board 5 provided in the device 3 to the other connector 6b of the data transfer cable 6, and connect the NC data transfer device 2 and numerical control device 3 via the data transfer cable 6. A method has been used in which an oscilloscope or the like is interposed between the NC data transfer device 2 and the numerical control device 3 to diagnose the functions of the hardware.

[Problem to be solved by the invention]

However, with the above method, the presence or absence of transferred data can only be confirmed, and it is impossible to diagnose the contents of the transferred data.

Therefore, in order to diagnose the contents of the data actually being transferred, a diagnostic device such as a line analyzer 9 is installed between the NC data transfer device 2 and the numerical control device 3, as shown in Fig. 5(b). A method has been used in which the contents of the data actually being transferred are also diagnosed by intervening the connectors 4a and 9a and the connectors 5a and 9b, respectively.

However, for diagnosis, an expensive analyzer is required, and the person performing the test requires a high degree of technical knowledge. It is desirable that diagnosis can be performed at low cost, and it is also desirable that tests can be performed without advanced knowledge.

The purpose of the present invention is to solve such conventional problems and to
To provide a method for diagnosing a transfer device that can easily and inexpensively perform a pseudo online test on the function of the transfer device that transfers a program to a partner device.

[Means to solve the problem]

In order to achieve the above object, a method for diagnosing a transfer device according to the present invention is a self-diagnosis method for a transfer device that transfers an NC program to a numerical control device as serial data. short-circuiting the data terminal and the input data terminal, the transmitting terminal side signal terminal and the other side signal terminal, and installing a diagnostic connector for returning the signal, and performing a functional diagnosis of the input/output board of the transfer device, A diagnostic means for determining the diagnostic content and displaying the determination result is connected, and a terminal ready signal and a transmission request signal of the input/output board are transmitted.

The feature is that it diagnoses data readiness and parity, determines whether it is normal or abnormal, and displays the determination results. Further, the diagnostic connector is attached to a connector terminal on the numerical control device side of a serial cable connecting the transfer device and the numerical control device.

Another feature is that the function diagnosis is performed including the serial cable.

[For production]

In the present invention, the diagnostic connector is directly connected to the NC data transfer device or connected to the diagnostic connector via a cable. The diagnostic connector is configured so that the data transmitted by the NC data transfer device is looped back and sent back to the NC data transfer device, so that the NC data transfer device has a diagnostic function execution unit, a diagnosis result determination unit, and a display control unit. By connecting these, it is possible to determine whether the fault is normal or abnormal, and in the case of an abnormality, whether the location of the fault is within the NC data transfer device or within the cable. The diagnostic connector loops back the output data (SD) from the NC data transfer device, the transmitting terminal signal (RTS), and the terminal ready signal (DTR), so these signals can be diagnosed individually and can be easily performed. Functional testing is possible.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1(a), (b), and (c) are diagrams showing an embodiment of the present invention, in which (a) is a connection diagram for diagnosing an NC data transfer device using a diagnostic connector; (b) is a connection diagram for performing diagnosis including cables using the diagnostic connector, and (Q) is a wiring diagram of the diagnostic connector.

The diagnostic method of the present invention is as shown in FIG. 1(a).

The connector terminal 4a of the input/output board 4 is connected to the NC data transfer device (R8232C is used here) 2.
The diagnostic connector 8 is connected to the connector terminal 6b of the cable 6 directly or via the cable 6 as shown in FIG. 1(b). This diagnostic connector 8 is shown in FIG.
It is configured as shown in c), and the data sent by the NC data transfer device 2 is returned by 1. ．． The NC data transfer device 2, which sends the data back to the NC data transfer device 2, uses the returned data as received data, judges it, and displays the judgment result.

As shown in FIG. 1(C), the diagnostic connector 8 is provided with a plurality of bins, two of which are short-circuited to enable return transmission. That is,
Among the multiple bottles, pin 2 (SD) and pin 3 (
RD), 1 pair, 4th pin (RTS) and 5th pin (DTR)
), each of a pair is connected and short-circuited, and S
The output data and transmission side terminal signals of D, RTS, and DTR are configured to be returned as input data and the other side terminal signal. In other words, the output data SD from the NC data transfer device 2, the sending terminal signal RTS (transmission request signal), and the DTR (terminal ready signal) are passed through the diagnostic connector 8, so that they can be pseudo-transferred from the numerical control device 3. It is returned as input data RD and other party terminal signals CTS and DTR. This makes it possible to test the functionality of the transfer device 2 and the cable 6 in a simple manner.

In FIG. 1(a), the diagnostic connector 8 of the present invention is attached to the connector terminal 4a on the input/output board 4 of the NC data transfer device 2. In FIG. As a result, the output data and transmitting side terminal signal sent from the NC data transfer device 2 are immediately returned through the 1 diagnostic connector 8, and this becomes the input data and the other side terminal signal, so the function test of the NC data transfer device 2 is performed. is possible.

In FIG. 1(b), on the numerical control side connector 6b of the connection cable 6 between the NC data transfer device 2 and the numerical control device 3,
The diagnostic connector 8 of the present invention is attached. by this,
The output data and transmission side terminal signal sent from the NC data transfer device 2 are returned via the connection cable 6 at the diagnostic connector 8, and this becomes the input data and the other side terminal signal. Functional diagnosis of the NC data transfer device 2 becomes possible.

FIG. 2 is a flowchart of diagnostic operation showing one embodiment of the present invention.

Here, we use the NUL code to D as the diagnostic transmission data.
Using all 128 characters of the ASC:II code up to the EL code, diagnosis is performed one character at a time starting from the NUL code. FIG. 2 shows the diagnostic flow for one character among them.

First, send only one ASCII character data (
Step 31). Next, the other party's terminal signal DTR (terminal ready signal) is checked (step 32), and if it is normal, OK is displayed in the DTR section of the 1 display screen (step 33), and the next step is to input ASCII characters. It is displayed in the sending data section of the display screen (step 35). When an abnormality occurs, NG is displayed in the DTR (terminal ready signal) field on the display screen (step 34), and an error message indicating the abnormality is displayed at the judgment result display position on the judgment display screen (step 39).

After displaying the sending data, DTR (terminal ready signal),
Check RTS (transmission request signal), DATAREADY (data ready signal), and parity (step 3)
6). If the check result is normal, the DT on the display screen
An OK character is displayed on the R, RTS, and parity rings (step 37). Also, if the check results indicate that there is an abnormality, an NG character is displayed in the DTR1RTS and parity ring on the display screen (step 38).
This is performed for all FI characters from NUL to DEL (repeated for 128 characters). When everything is normal, a normal message is displayed at the judgment result display position on the display screen.

Note that when an abnormality occurs, the details of the error are displayed as an error message on the CRT screen.

ASCII 128 character diagnosis is considered as one time.
Make it happen once or multiple times.

FIG. 3 is a block diagram of a diagnostic control system showing one embodiment of the present invention.

In FIG. 3, a diagnostic function execution section 11 performs a diagnostic operation of the input/output board 4 based on data returned from a diagnostic connector 8, and a diagnostic result determination section 12 performs a diagnosis performed by the diagnostic function execution section 11. The display control unit 13 performs a judgment action to judge the result, and a display action to display the judgment result of the diagnosis result judgment unit 129 on the CRT screen of the NC data transfer device 2.
They are controlled respectively. Further, the control section 14 controls the actions of each of these functional sections 11, 12, and 13, that is, the diagnostic action, the judgment action, and the display action. Note that the diagnostic function execution unit 111, the diagnostic result determination unit 12, and the control unit 14 all perform control by executing programs with a processor.

In addition, the display control unit 13 is connected to a CRT in the NC data transfer device 2.
It is connected to a display and displays the diagnosis and results to the operator.

FIG. 4 is a diagram showing a display example of the CRT screen of the transfer device, where (a") is a display example when the diagnosis result is normal, and (b) is a display example when the diagnosis result is abnormal. It is.

Of the screen shown in FIG. 4(a), the upper half is the display screen during diagnosis, and the lower half is the display screen for the comprehensive results.

At the top, there is a display indicating that diagnosis is in progress, and below that, DTR
The results of signals, RTS signals, transmitted data, received data, and parity are displayed. Here, A is used as the transmission data.
This is a case where the SCII character DEL is transmitted, both the destination terminal signals DTR and RTS are OK, both the transmitted data and the received data are DEL, and the parity is also displayed as OK. Additionally, the message "Boat is normal" appears on the result display screen. The error message prepared in this example does not include an IrDTR signal. ", [f'RT
There is no S signal. j "Data not ready. j lr parity error. There are four types of j. In each case, it is determined that there is an abnormality in the input/output interface port of the NC data transfer device. By connecting the diagnostic connector 8 to the connector terminal 6b of the cable 6, it is also possible to diagnose cable abnormalities.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to easily perform self-diagnosis of the transfer function of the NC data transfer device using an inexpensive diagnostic connector and a diagnostic program. , it is possible to determine whether the failure occurs on the data transfer device side, the numerical control device side, or the connection cable, which is very effective.

[Brief explanation of the drawing]

FIG. 1 is a diagnostic connection diagram showing an embodiment of the present invention, FIG. 2 is a flowchart of diagnostic operation showing an embodiment of the present invention,
3rd v! 1 is a block diagram of a diagnostic control system showing an embodiment of the present invention, FIG. 4 is a diagram showing a display example of a CRT screen of a transfer device, and FIG. 5 is a diagram showing conventional diagnostic connections. 2: NC data transfer device, 3: Numerical control device, 4.
5: input/output board, 6: connection cable, 8: diagnostic connector, 11: diagnostic function execution unit, 12: diagnostic result determination unit,
13: display control section, 14: control section, 4a, 5a, 6a,
6b: Connector terminal. Figure Patent Applicant Rico Co., Ltd. Figure Figure 3 (&) Figure Figure (a)

Claims (2)

[Claims] (1) In a self-diagnosis method for a transfer device that transfers an NC program to a numerical control device as serial data, the connector terminal of the input/output board of the transfer device is connected to an output data terminal, an input data terminal, a signal terminal on the transmitting terminal side, and the other party. In order to short-circuit the side signal terminals and attach a diagnostic connector to return the signal, execute a functional diagnosis of the input/output board of the transfer device, judge the contents of the diagnosis, and display the judgment result. connect the diagnostic means of the input/output board to perform diagnosis on the terminal ready signal, transmission request signal, data ready and parity of the input/output board, and determine whether it is normal or abnormal;
A self-diagnosis method for a transfer device, characterized by displaying a judgment result. (2) The diagnostic connector is attached to a connector terminal on the numerical control device side of a serial cable connecting a transfer device and a numerical control device, and a functional diagnosis is performed including the serial cable. A self-diagnosis method for a transfer device according to scope 1.