JPH048836B2 - - Google Patents

Description

Detailed Description of the Invention The present invention connects a tape puncher, tape reader, etc. that can be separated from the main body of a numerical control device as a data input/output device to a predetermined numerical control device, and performs self-diagnosis of these data input/output devices. The present invention relates to a self-diagnosis device that performs self-diagnosis.

In numerical control, a host computer is sometimes used to perform various data processing to create machining command data for a workpiece. Data created by the host computer is recorded on paper tape by a tape puncher, and this paper tape is used as a recording medium as input information for other systems. Also, when making paper tape,
In order to record the contents, I print it out on a printer. Normally, when output from a host computer is recorded on paper tape or printed on recording paper, a paper tape puncher and a printer are used, each of which is provided separately from the main body of the host computer. These devices are connected to a host computer and operate only according to instructions from the host computer.
Unlike such a system in which each peripheral device is separate, when it is connected to a host computer, it operates based on its commands, and when it is disconnected from the host computer, it independently reads the contents of the paper tape and copies it. A system for printing may also be considered. However, such systems are intended for a very limited number of systems and may not be applicable to other systems, and even if they can be applied, the solution may be to change the host computer software. There was also the inconvenience of having to do so.

Additionally, when sending data to a host computer or recording data sent from a host computer onto paper tape, the tape reader or tape puncher may malfunction, resulting in inaccurate data reading or recording. However, in the past, self-diagnosis to determine whether such a malfunction occurred was performed separately for each tape reader or tape puncher, which was extremely troublesome.

Therefore, the present invention provides a numerical control system in which when a tape puncher, tape reader, and printer, which can be separated from a host computer, are integrally connected to a predetermined numerical control device as a data input/output device, when the power is turned on, It is an object of the present invention to provide a self-diagnosis device that can perform self-diagnosis all at once to determine whether a reader or tape puncher causes an erroneous data reading or recording operation.

Next, one embodiment of the present invention will be described in detail using the drawings.

FIG. 1 is a block diagram of a data input/output device according to the present invention. In the figure, 1 is a control device;
2 is a read-only memory (hereinafter referred to as
(abbreviated as ROM). The ROM 2 stores a series of programs for self-diagnosis in addition to basic programs. This self-diagnosis program consists of two subprograms. The second subprogram is a program that punches the data recorded on the paper tape created by the first subprogram with the data read by the tape reader and the data recorded on the paper tape created by the first subprogram. This is a program that compares certain punching data.

3 is a random access memory (hereinafter abbreviated as RAM) for temporarily storing data read out from a paper tape, etc.; 4 is a tape reader; 5 is a tape puncher; 6 is a printer; The data read by the tape puncher 5, the data printed by the tape puncher 5, or the data sent from the host computer are printed. 7 is a control panel with character keys, numeric keypad,
It has function keys etc. Particularly, in addition to having an operation changeover switch for operating according to commands from the host computer or independently operating the data input/output device according to the present invention, it also has an operation changeover switch for operating according to commands from the host computer or independently according to the data input/output device according to the present invention, and also includes an operation changeover switch for operating according to commands from the host computer or data input/output according to the present invention when the power is turned on. It has a switch that allows it to perform self-diagnosis operations based on commands from the device itself. 8 is an interface circuit with the host computer, and 9 is a switching circuit.

The device shown in FIG. 1 can perform the following operations only within its own device. First, operation panel 7
The data keyed in can be immediately printed out using the printer, and this data can also be stored in the RAM 3. It is also possible to correct errors in the data stored in the RAM 3 after checking the printed results. After this correction operation, the data stored in the RAM 3 can be printed out and the paper tape can also be punched. Furthermore, the data read from the tape reader 4 can be printed out from the printer 6, and the paper tape can be punched by the tape puncher 5 to make a copy of the paper tape, and these operations can be performed simultaneously. You can also do it.

The device shown in FIG. 1 also switches an operation changeover switch provided on the operation panel 7, and
Turn on and connect to the host computer side.
RAM3 from operation panel 7 or tape reader 4
Host data with or without
The data can be transferred to the computer side, and the data transferred from the host computer side can also be recorded on paper tape from the tape puncher 5 or printed out from the printer 6.

Next, the self-diagnosis operation will be explained.

First, flip the switch on the operation panel 7 to set it to "self-diagnosis mode." Note that this self-diagnosis operation is performed in one of two modes: a command from the data input/output device itself according to the present invention or a command from the host computer.

Next, turn on the power. As shown in FIG. 3, in the next step, the contents of the program counter are set to the self-diagnosis program start address. Thereafter, one byte of data is read from the area storing punch data as described above and output to the puncher. Thereafter, as shown in FIG. 3, predetermined punching is repeatedly performed on the paper tape to record predetermined data.

In this way, the paper tape for self-diagnosis is completed, and the first subprogram ends. At this point, the paper tape is removed from the tape puncher and the paper tape for self-diagnosis is hung on the tape leader. Then, when the start switch on the operation panel 7 is pressed, the process moves to the second subprogram. This second
As shown in FIG. 4, the subprogram first reads one byte of data from the paper tape. Then, it is determined whether read data from the tape reader is being input to the device. When data input is confirmed, one byte of the designated address of the self-diagnosis punch data storage area shown in the first subprogram is read out to check whether it matches the input data from the tape reader. If a match is found in this match operation, the address where data next to the data that has just been read out in the punch data storage area is stored is specified. Then, when the last address of the punch data storage area is specified and the two match, a print command is sent to the printer 6,
For example, print "NO ERROR". When performing a series of matching operations, if a mismatched part is found in any part, immediately stop this matching operation, send a print command to the printer 6, print out, for example, "ERROR", and print the data. Indicates that an error occurred in the punching operation or data reading operation.

Note that the printing on the printer is not limited to the display of "NO ERROR" or "ERROR" as described above, and other appropriate display such as "○" or "x" may also be used.

As explained in detail above, the present invention not only enables a data input/output device to operate in response to commands from a host computer to create paper tapes, print out transferred data, and input data, but also allows , has a processing function that allows you to create paper tapes with your own programming and print data on paper tapes, so it is a portable data input/output device that can hold several numerical control devices. It is suitable as a self-diagnosis device that can be connected to a predetermined numerical control device and perform self-diagnosis all at once.

In the self-diagnosis of the data input/output device of the present invention, the tape reader reads data from a paper tape created by the tape puncher for self-diagnosis according to a program, and the read data and the data are stored in the internal memory. Since self-diagnosis is performed by comparing the data with predetermined pattern data, it is possible to determine whether both the tape reader and tape puncher are normal with just one operation. Additionally, since the results of determining whether the data read by the tape reader matches the predetermined pattern data stored in memory are printed out on the printer, self-diagnosis of the printer is also performed at the same time. become. This is because when a determination result indicating that the printer is normal is output by printing, it can be determined that the tape puncher, tape reader, and printer are all normal.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a data input/output device according to the present invention, FIG. 2 is a diagram showing the perforation state of a paper tape, and FIGS. 3 and 4 explain the first and second subprograms. This is a flowchart for 1...control device, 2...ROM, 3...RAM, 4...
Tape reader, 5... tape puncher, 6... printer, 7... operation panel.

Claims (1)

[Scope of Claims] 1. A self-diagnosis device that connects a tape puncher and a tape reader that are separable from a numerical control device main body to a predetermined numerical control device as data input/output devices, and performs self-diagnosis of these data input/output devices. Predetermined test pattern data, an output program that causes the tape puncher to punch out the test pattern data onto a paper tape, and an output program that causes the tape reader to read the test pattern data from the paper tape punched with the test pattern. a memory storing a reading program for performing an operation; test pattern data read by the tape reader from a paper tape punched out by the tape puncher for self-diagnosis according to the output program; and test pattern data stored in the memory. What is claimed is: 1. A self-diagnosis device comprising: comparison means for comparing test pattern data that has been tested; and output means for outputting the determination result of the comparison means as self-diagnosis data for the tape puncher and tape reader. 2. Printing out a determination result of whether the data read by the tape reader matches or does not match the test pattern data stored in the memory to a printer connected to the predetermined numerical control device as a data output device. A self-diagnosis device according to claim 1, characterized in that: