JPH0452481B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a reading device installed in a numerical control device, and more particularly to a reading device in which read data is checked and stored by a microcomputer or the like.

[Technical background of the invention and its problems]

As shown in Fig. 1, a conventional numerical control device uses a reading device 1 to read numerical control data that has been included, for example, by punching holes in a paper tape, and sends this read data to the numerical control device main body (hereinafter referred to as (abbreviated as the main body) 2.

The main body 2 performs a parity check on the read data, checks for errors during reading and transfer, and also checks whether the data is ISO
(International Organization of Standard) code or EIA (Electronic Industries Association)
It is determined whether the read data is a standard code, and the data format of the read data is checked to check for errors to see if the format is correct according to the determined code. After the above check is completed, the read data is stored in a storage section in the main body 2, and in response to a request signal in the main body 2, the data is sequentially read from the storage section for each data block and used for numerical control operation. ing.

However, if the storage medium is changed from paper tape to magnetic tape, etc., and the reading device 1 is also changed, or if the code or format is changed, the specifications of the main body 2 must also be changed. This placed a huge burden on the entire system.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and its purpose is to provide a reading device that can reduce the burden on the main body of a numerical control device and is easy to use.

[Summary of the invention]

In order to achieve the above object, a reading device according to the present invention includes a reader that reads numerical control data for operating a numerical control device main body from a storage medium, and a signal processing section and a signal processing section attached to this reader. Consisting of a check/storage device having a storage section, and a console device connected to the check/storage device and giving operational commands to the reader and the check/storage device, The signal processing unit includes read data storage means, stored data output means, and read data direct output means that are selected and operated by a command from the console device, and the read data storage means reads the numerical value from the storage medium. means for instructing the reader to perform an operation for reading control data; means for importing the numerical control data read by the reader into the check/storage device; and the retrieved numerical value. means for performing a parity check on control data; means for performing a format check on the imported numerical control data; and means for determining that the numerical control data is normal through the parity check and the format check. and means for storing the numerical control data in the storage section of the check/memory device, and stopping the operation of the read data storage means when it is determined that there is an abnormality, and the stored data output means: means for determining whether or not there is a request signal from the numerical control device main body; and when the means determines that there is a request signal from the numerical control device main body, data is stored in the storage section of the check/memory device. means for checking whether data is stored in the storage section, and means for transferring the numerical control data stored in the storage section to the main body of the numerical control device when it is determined by this means that data is stored in the storage section. The read data direct output means includes means for determining whether or not there is a request signal from the numerical control device main body, and a means for determining whether or not there is a request signal from the numerical control device main body; means for instructing the reader to perform an operation for reading the numerical control data from the storage medium; and means for importing the numerical control data read by the reader into the check/storage device; means for performing a parity check on the imported numerical control data; means for performing a format check on the imported numerical control data; means for transmitting the numerical control data to the numerical control device main body when it is determined that there is an abnormality, and means for stopping the operation of the read data direct output means when it is determined that there is an abnormality. Features.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram showing one embodiment of a reading device according to the present invention. In Figure 2, 3 is
This is a reader that reads numerical control data written on paper tape. 4 is a checker which performs the processing described later on the read data from the reader 3 with the numerical control device main body (hereinafter abbreviated as main body) 5.
This is a memory device, which is usually composed of a single printed circuit board, is attached to the back of the reader 3, and constitutes the reader of this embodiment. The detailed structure of this check/memory device 4 will be described later. Reference numeral 6 denotes a console device for operating and displaying the check/memory device 4, and has an ASCII code display capable of displaying alphanumeric characters and a plurality of operation switches. This console device 6 selects an operation mode, which will be described later, using its operation switch, and displays parity check errors, data format errors, read data, and the operation of the check/memory device 4 using its display. Errors, etc. are displayed using letters and numbers.

Next, details of the check memory 4 will be described with reference to FIG. That is, 7 is an input/output circuit (hereinafter abbreviated as I/O) that exchanges data between the reader 3, the main body 5, and the console device 6. This I/O 7 gives a tape start command and a tape stop command to the reader 3, and also takes in read data. Also this I/O7
sends output data as numerical control data to the main body 5 for each data block, and also receives a request signal from the main body 5. Furthermore, this I/O 7 provides display data to the console device 6 and also takes in operation commands associated with switch operations. 8 is a central processing unit (hereinafter abbreviated as CPU) that performs predetermined processing and arithmetic control on various data from the I/O 7 using a control program to be described later. Consists of computer elements, etc.
9 is a read-only memory (hereinafter abbreviated as ROM), and this ROM 9 has data parity check routine, data format check routine, read data storage operation mode routine,
A control program consisting of various routines such as a RAM data output operation mode routine, a read data direct output operation mode routine, and a main routine is stored in advance. 10 is a random access memory (hereinafter abbreviated as RAM), and this RAM 10 stores read data from the reader 7 for each data block by executing the read data storage operation mode routine. 11
is a battery, which supplies power so that the data stored in the RAM 10 can be continuously stored even after the power is turned off.

Next, the operation of this embodiment configured as described above will be explained with reference to the flowchart shown in FIG. The flow of this operation is started by operating the operation switch of the console device 6 based on the control program in the ROM 9, and is processed in the CPU 8.

In FIG. 4, when the on switch of the main body 5 is operated, this flow starts at step P1.

First, the read data storage operation mode (hereinafter abbreviated as data storage mode) will be described. When the data storage mode switch of the console device 6 is operated, it is determined that the data storage mode is selected at step P2, and a tape start command is given to the reader 3 via the connector a and the I/O 7 at step Q1. This tape start command causes the reader 3 to run the tape, and if it does not find a code indicating the end of data at step Q3, it advances to step Q3.
3 reads one data block of numerical control data included on the tape. For this read data, a parity check routine is called in step X1 to perform a parity check, a data format routine is called in step X2 to perform a format check, and step Q
If it is determined in step 4 that the tape is normal in the above check, a tape stop command is given to the reader 3 in step Q5 to stop the reader 3, and in step Q5, the read data of the one data block is stored in the RAM 10. Remember. Then, return to connector a again and perform the same operation as above. In the above, when a code indicating the end of data is found in step Q2, the operation in this data storage mode is ended in step Q7, and display data indicating the end is given to the console device 6, and the display shows that fact. Further, if an abnormality is detected as a result of the check in step Q4, the operation is stopped and a message is sent to the console device 6 in step Q8.
Provides display data indicating an abnormality, and displays the console device 6.
This will be indicated on the display.

Next, the RAM data output operation mode (hereinafter abbreviated as data output mode) will be described. When the data output mode switch of the console device 6 is operated, it is determined in step P2 that the mode is data output mode, and the process proceeds to step R1 via connector b.
In this step R1, it is determined whether or not there is a request signal from the main body 5, and if there is, it is determined whether or not there is data in the RAM 10 via the connector c in step R2. At step R3, data in one data block in the RAM 10 is transferred to the main body 5. In step R1 above,
When it is determined that there is no request signal from the main body 5,
While displaying the data previously transferred to the main body 5 on the console device 6, the process returns to the connector b and waits for a request signal. Also, in step R2, RAM1
If it is determined that there is no data within 0, display data indicating the end is given to the console device 6, a display to that effect is given, and the process ends at step R4.

Next, the read data direct output operation mode (hereinafter abbreviated as data direct output mode) will be described. When the data direct output mode switch of the console device 6 is operated, it is determined in step P2 that the data direct output mode is set, and the process proceeds to step S1 via connector d. In this step S1, it is determined whether or not there is a request signal from the main body 5. If there is, a tape start command is given to the reader 3 via the I/O 7 in step S2. The reader 3 runs the tape in response to this tape start command, and when it does not find a code indicating the end of data in step S3, it reads one data block of numerical control data written on the tape in step S4. For this read data, a parity check routine is called in step X1 to perform a parity check, a data format routine is called in step X2 to perform a format check, and in step S5, if the above check is normal, If it is determined, a tape stop command is given to the reader 3 in step S6 to stop the reader 3, and the read data of the one data block is transferred to the main body 5 in step S7.
Then, the process returns to the connector d and performs the same operation as above. If it is determined in step S1 that there is no request signal from the main body 5, the console device 6
Then, it returns to the connector d while displaying the data previously transferred to the main body 5, and waits for a request signal.

Further, if a code indicating the end of data is found in step S3, the operation in this data direct output mode is ended in step S8, and the console device 6
The display data indicating the end is given to the terminal, and the display shows this on the display. If an abnormality is detected as a result of the check in step S5, the operation is stopped in step S9, and display data indicating the abnormality is provided to the console device 6, and the display of the console device 6 displays the fact. .

As described above, according to this embodiment, the check/memory device 4 is added so that the check function and data function, which were conventionally provided in the main body 5, are provided on the reading device side, so that the storage medium can be Even if you change from paper tape to magnetic tape, etc., and change the reader 3, or change the code or format, the functions associated with the change will be checked, even if the specifications of the main body 5 do not change. This can be covered by the storage device 4, and there is no burden on the entire system.

The present invention is not limited to the above-described embodiment, and the contents of the control program in the ROM 9 can be modified in various ways, and routines such as data check mode other than the present embodiment may be added. In addition, in FIG. 4, instead of ending each mode, it may be possible to continuously move to the step at the beginning of another mode. Furthermore, instead of configuring the reader 3 and check/storage unit 4 as a single unit as in this embodiment, the reader may also include a console device 6. Furthermore, if a numerical control device that does not have a check function is equipped with the check and memory device 4 of this embodiment, it becomes possible to provide a check function without modifying the numerical control device. . In addition, various modifications can be made without departing from the gist of the present invention.

〔Effect of the invention〕

As described above, the reading device according to the present invention has
A reader that reads numerical control data for operating a numerical control device main body from a storage medium; A check/memory device attached to this reader and having a signal processing section and a storage section; This check/memory device and a console device connected to the reader and the check/storage device to issue operational commands to the reader and the check/storage device, and the signal processing section of the check/storage device is selected by the command from the console device. The read data storage means has a read data storage means, a stored data output means, and a read data direct output means that operate, and the read data storage means instructs the reader to perform an operation for reading the numerical control data from the storage medium. means for reading the numerical control data read by the reader into the check/storage device; means for parity checking the numerical control data read by the reader; means for format-checking the numerical control data that has been checked; and when it is determined that the numerical control data is normal through the parity check and the format check, the numerical control data is stored in the storage section of the check/memory device; and means to stop the operation of the read data storage means when it is determined that there is an abnormality, and the stored data output means determines whether or not there is a request signal from the numerical control device main body. means for checking whether or not data is stored in the storage section of the check/memory device when it is determined by this means that there is a request signal from the main body of the numerical control device; means for transferring the numerical control data stored in the storage section to the main body of the numerical control device when it is determined that data is stored in the storage section; means for determining whether or not there is a request signal from the control device main body; and an operation for reading the numerical control data from the storage medium when the means determines that there is a request signal from the numerical control device main body. means for instructing a reader; means for loading the numerical control data read by the reader into the check/storage device; and means for parity checking the loaded numerical control data. and means for performing a format check on the imported numerical control data, and when it is determined that the numerical control data is normal through the parity check and the format check, the numerical control data is converted into the numerical control data. Since the read data is transferred to the main unit of the apparatus and a means for stopping the operation of the direct output means when it is determined that there is an abnormality, it is possible to reduce the burden on the main body of the numerical control apparatus, and it is easy to use. A reading device can be provided.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a conventional reading device in relation to the numerical control device main body, FIG. 2 is a block diagram showing an embodiment of the reading device according to the present invention in relation to the numerical control device main body, and FIG. 3 is a block diagram showing details of the check/memory device in FIG. 2, and FIG.
The figure is a flowchart showing the operation of the same embodiment. 3...Reader, 4...Check/memory device, 5
... Numerical control device main body (main body), 6 ... Console device, 7 ... Input/output circuit (I/O), 8 ... Central processing unit (CPU), 9 ... Read-on memory (ROM), 10 ... ...Random access memory (RAM), 11...Battery.

Claims (1)

[Scope of Claims] 1. A reader that reads numerical control data for operating the main body of a numerical control device from a storage medium, and a check/storage device attached to this reader that has a signal processing section and a storage section. and a console device connected to the check/storage device and giving operational commands to the reader and the check/storage device, and the signal processing section of the check/storage device is connected to the console. It has a read data storage means, a stored data output means, and a read data direct output means that are selected and operated according to a command from the device, and the read data storage means performs an operation for reading the numerical control data from the storage medium. means for instructing the reader; means for importing the numerical control data read by the reader into the check/storage unit; and performing a parity check on the numerical control data read by the reader. means for performing a format check on the numerical control data taken in; and means for performing a format check on the numerical control data when the numerical control data is determined to be normal by the parity check and the format check. - A means for storing the read data in the storage section of the storage device and stopping the operation of the read data storage means when it is determined that there is an abnormality, and the storage data output means receives a request signal from the numerical control device main body. means for determining whether there is a request signal from the numerical control device main body, and checking whether data is stored in the storage section of the check/memory device when it is determined by this means that there is a request signal from the numerical control device main body. and means for transferring the numerical control data stored in the storage section to the main body of the numerical control device when it is determined by the means that data is stored in the storage section, and the read data The direct output means includes means for determining whether or not there is a request signal from the numerical control device main body, and when it is determined by this means that there is a request signal from the numerical control device main body, the direct output means outputs the numerical control data from the storage medium. means for instructing the reader to perform an operation to read the data; means for importing the numerical control data read by the reader into the check/storage device; and the retrieved numerical control data. means for performing a parity check on the numerical control data; means for performing a format check on the imported numerical control data; A reading device comprising means for transferring numerical control data to the numerical control device main body and stopping the operation of the read data direct output means when it is determined that there is an abnormality.