JPS59165107A - Numerical controller equipped with program display function - Google Patents

Abstract

PURPOSE:To display a program source with small buffer capacity by composing the program source reversely from operation information on the result of decoding and displaying it. CONSTITUTION:The program source is stored temporarily in a buffer means BUF and then read out and decoded by a decoding means DET, and the operation information based upon the decoding result is stored in an operation information storage means MEM. The operation information storage means MEM stores the operation information obtained as mentioned above by several blocks, and reverse program source com9osing means PD processes the operation information to perform the reverse conversion of the program source to a block format. Then, the program source is displayed on a display device DPY. Further, a program contains variables and expressions, numerals commanded by those variable names and expressions are used to display the program source.

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to a numerical control device having a program display function, and more particularly to an improvement in means for displaying program sources.

Prior Art and Problems As a conventional program display function of this kind, for example, the first
As shown in the figure, a program source display that displays the program source consisting of character strings stored on paper tape or magnetic bubble memory as is, and modal information necessary when executing a block as shown in Figure 2, etc. A command display for displaying off-state operating information is known.

The former program source display, for example, as shown in the flowchart in Figure 5, reads the program source sequentially from a storage medium such as a paper tape into a buffer, decodes the source, and inserts a calculation formula into the program to perform the calculation. The operation information thus obtained is provided to the operation processing, and source block pointer information indicating which block is currently being processed is provided to the program display management. In this program display management, several blocks of program sources read from the buffer 7 are displayed on the CRT. Such a program display is 1
Although the program has the advantage of being able to display a large number of blocks at once, since the display space for each block is small.

There is a disadvantage that the capacity of the bag 7 for reading the source increases. In other words, in a general numerical control device, a block that is further ahead than the block that is actually being operated is decoded, and therefore, from an operational point of view, the block that has been decoded can be erased. However, as shown in FIG. 6, in the conventional display, the contents of the buffer are displayed by reading them, so blocks that have been decoded must also be stored in the buffer.

The latter command display is carried out, for example, by the process shown in the flowchart of FIG. 4, and the difference from FIG. 3 is that the created operating information is displayed on a CRT. Therefore, the capacity of the buffer 1 may be small. However, as can be seen from Figure 2, it is not displayed in program source format, so what kind of program commands are used to perform the operation?

It is not clear what is being displayed, and since the display space for one block is large, it is not possible to display many blocks at once. Therefore, there are few numerical control devices that only have a command display function, and many
Equipped with source display function.

Purpose of the Invention The present invention has been made in view of the above circumstances.
The purpose is to improve the conventional program source display means and to enable program source display with a small buffer capacity.

Structure of the Invention FIG. 5 is an explanatory diagram of the structure of the present invention. After the program source is once stored in the buffer 7 means BUP, it is read out and decoded by the decoding means DET, and the driving information based on the decoding result is obtained. The driving information is stored in the MEM package. The driving information storage means MEN stores a plurality of blocks of driving information obtained in this way, and the program source decomposition means FD processes the driving information and converts it back into a program source block format. do. This program source is then displayed on the display device DPY.

Note that in the case of a program that includes variables and formulas, the program source is displayed using the numerical values commanded by these variable names and formulas.

Embodiment of the Invention Fig. 6 is a block diagram of a main part showing an example of a node square that constitutes a numerical control device equipped with a program display function of the present invention, and Fig. 7 shows a program source display function according to the present invention. A flowchart showing an example of a schematic configuration of the software is shown below.

In FIG. 6, the program source is stored as a perforation on the paper tape 14, read by the tape reader 15, and stored in the program source buffer 7 area 18G of the EAM 1B (Sl).

The microprocessor 10 executes the program stored in its buffer 1 area according to the ROM 170 control program.
The source is decoded block by block, and if a calculation formula is invalid in a block, the calculation is performed (S2).

Also, if the block has many variable definition formulas, the value of that variable is stored in the variable area 18 & of RAM 1B (S
3).

For example, for three blocks, the first block and the next block are variable #1. $2 is 10Q and 0.200.0 respectively
In the last block, the amount of movement on the X, Y, and Z axes is $1. It shows that it can be settled by $2-5α0, 30α0. In such a case, the variable $1. is stored in the variable area 186 of RAM1B. Each $2 is 10α0゜2
010 is memorized, and then by substitution calculation
,Y,! ;The amount of movement of each axis is 100.0.15
It is required that α0°30Q,O.

is created, and the created driving information is stored in the driving information area 18c of the RAM 1B (S4). FIG. 8 is a simplified schematic diagram showing the structure of one block's worth of driving information area, in short, it has an area for storing various data, addresses, etc. shown in FIG. 2. However, in the present invention, since it is necessary to perform reverse synthesis of program sources, which will be described later, data or attributes included in the block of operating information are required.

For example, a flag of "1" is set to indicate that response, etc. To identify the data contained in that block, it is possible to identify the current operation information and the immediately preceding one.

This can be done by comparing the lock operation information.

Next, the microprocessor 10 controls the X-axis, Y-axis, and X-axis position control circuit 1 based on the operation information stored using existing technology.
Controls 9 to 21, X axis, Y axis.

Along with driving the two-axis motor 22-724'i (N5),
A program/source display command from the keyboard 15 or the like performs synthesis (N6).

This reverse synthesis of the program source is performed by sb by synthesizing the program source from the driving information, for example, by the process shown in FIG. That is, the flag in the operating information corresponding to the block to be created (see Figure 8)
First, it is determined whether the input is rare in that block or not (S7), and if there is an input, the address part of that information is output, or the alphabet part of the program is output as characters (N8), and then the numerical value of that information is output. part is restored to a character string and output (N9). Similarly, all the information that occurs in that block, such as the sequence number, is extracted, for example, N1000 G92 XO1'OZO;・-
・-'-(Blocks such as 21 are synthesized. In this case,
When a variable definition block or formula block as in (1) above is included, they are replaced with actual numerical values and displayed in r1 format.

For example, in the case of blocks like (1) above, the first block and the next block are not displayed, and the last block is displayed in the following format.

X10(LOY15(LOJ300.0;
(31) This way, it becomes clear at a glance how the device actually operates.If other calculation formulas are included, they are processed in the same way.

The address part is restored by, for example, storing an alphabetical ASC44" code indicating the address into the RAM of the display device. The numerical part is restored, for example, as follows. First, if the numerical value is negative, write the ASCII code indicating the publication into the RAM of the display device and simultaneously convert the numerical value to an absolute value.Next, perform the binary → decimal conversion process to convert the numerical value to a decimal number. Next, convert the obtained decimal number into an ASC4i character code one digit at a time starting from the upper digit (adding 48 to a single decimal digit number becomes the ASCN character code representing that number) and output it to the RAM of the display device. In this case, the display will be easier to read if you skip until you find the first non-zero digit.For example, "00001000" in decimal
If so, simply display "1000". however,
If you want to display a decimal point, create the information about whether a decimal point is placed at the next digit along with other information when decoding the source program, and then place the decimal point in that place when displaying the decimal point. This is done for each decrypted block. As mentioned above, the block decoding line generally precedes the block that is actually being operated, and RAM 1B stores a large amount of operation information for blocks that are later than the block that is actually being operated. ing. Therefore, these retrosynthesis operations will result in obtaining a large number of program source blocks after the current operation, and if this is displayed on the display device i12, a buffer for program sources will be obtained. 7 areas 1
Even if the number of blocks 8a is small, it is possible to display many blocks of the program source. In the above embodiment, program north is reversely synthesized every time one block is decoded, and the result is displayed. Display device 12
It may be configured such that the data is written in a vacant video RAM.

Also, adding a command display function is only one option.

As described in detail, the present invention focuses on the fact that in a numerical control device, a block that is a short distance ahead of the block that is actually being operated has been decoded, and the operation information that is the result of decoding is On the contrary, since the program source is synthesized and displayed, there is no need to keep a large number of decoded blocks for display as in conventional program source display, and the buffer capacity is small. It is possible to display the program source.

In addition, the present invention restores the 10-gram command to the source program format and displays it by using the operating information that has been decoded and all formulas, variables, etc. have been calculated and stored as specific values. Therefore, it is not possible to restore the formula or variable name itself that gave the command value. However, in this case, since specific numerical values are displayed instead of formulas, the operator has the advantage of being able to easily know specific command values.

[Brief explanation of drawings]

Fig. 1 is a line diagram showing an example of conventional program source display, Fig. 2 is a line diagram showing an example of conventional command display, Fig. 3 is a flow chart showing conventional program source display processing, and Fig. 4 5 is a flowchart showing conventional command display processing, FIG. 5 is a configuration explanatory diagram of the present invention, and FIG. 6 is a main part block diagram showing an example of the hardware configuration of a numerical control device equipped with a programmable display function of the present invention. FIG. 7 shows a program according to the present invention.
A flowchart showing an example of a schematic configuration of software that realizes a source display function, Fig. 8 is a simplified schematic diagram showing the structure of one block of driving information area, and Fig. 9 shows a program source backsynthesis process. The flowchart shown below will help you. 14 is paper tape, 18 is RAM, 18. is a program source buffer 7 area, 18b is a variable area, and 18c is an operation information area. Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 La Number M (binary) Information hand l
A's silence Q
B's 1':o
Figure 9 of c.

Claims (1)

[Claims] In a numerical control device equipped with a program display function, a program source block back-7 means, a decoding means for reading and decoding blocks of the buffer means, and a plurality of blocks of operating information based on the decoding results of the decoding means are provided. a driving information storage means for storing information stored in the driving information storage means, a program source reverse synthesis means for processing the information stored in the driving information storage means and converting it into a program source block format; 1. A numerical control device having a program display function, comprising: a display device for displaying a program source.