JPH0357002A - Symbol data input system - Google Patents

Abstract

PURPOSE:To easily input symbol data to reduce the error by displaying a symbol map in the form of table on the display screen of a program generating device and inputting symbol data on this symbol map. CONSTITUTION:A symbol set picture 1 having a symbol map 2 corresponding to addresses and bits of signals on a sequence program is displayed on the display screen of the program generating device. Symbols of signals are inputted to corresponding positions of the symbol map 2 to assign symbols, addresses, and bits of signals. Inputted symbol data and addresses and bits in corresponding positions are assigned to signals in this manner to simplify the correspondence between symbols and addresses, and the occurrence of error is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a symbol data input method for allocating symbols and addresses of signals of a PC (programmable controller), and in particular to symbols having a tabular symbol map.・Regarding data input methods.

[Conventional technology]

A PC (programmable controller) has many human output signals and internal signals. Prior to creating a sequence program, addresses on the program are assigned to these signals. In addition, symbols are attached to signals for creating sequence programs and for PC maintenance. For this purpose, a list of signal symbols and addresses is generally created, and the symbols and addresses are input one after another when creating a sequence program.

[Problem to be solved by the invention]

However, as the number of signals in a sequence program increases, it becomes a considerable task to input these symbols and addresses for each signal, and errors also occur.

The present invention has been made in view of these points, and it is an object of the present invention to provide a symbol data input method that has a tabular symbol map and allows symbol data to be input easily.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a symbol data input method for allocating symbols and addresses of signals of a PC (programmable controller). By displaying a symbol setting screen having a symbol map corresponding to bits and bits on the display screen of a programming device, and inputting the symbol of the signal into the corresponding position of the symbol map, the symbol of the signal and the address can be set. A symbol data input method is provided, which is characterized by allocating bits and bits.

[Effect]

A symbol map in tabular form is displayed on the display screen of a programming device. Symbol data is input into the corresponding position of this symbol map.

The programming device assigns the input symbol data and the corresponding position address and bit to the signal. Therefore, the correspondence between symbols and addresses becomes simple and errors are prevented.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a diagram showing a symbol setting screen according to a first embodiment of the present invention. A display screen 1 of the program creation device is a symbol setting screen, and a symbol map 2 for inputting symbol data is displayed. symbol map 2
has address 3 on the sequence program in the vertical direction, and the actual addresses are X12, X13, and X14.

The horizontal direction corresponds to the bit of each address, and bit number 4 is displayed. That is, in the sequence program, signals are processed as 1-bit ON/OFF signals, so each signal is assigned 1 bit at a time.

Here, for example, X12. 3. When 2 is input from the keyboard, symbol map 2 starting at address X12 is displayed, and symbols are input from the third bit. That is, when the symbol data rKINSRT is input from the keyboard, the symbol data is displayed on the input line 5 indicated by the cursor 6,
When you press the input key, the 3 bits of address
KINSRTJ is displayed (shown in parentheses in the figure), and the input signal KINSRT is assigned to 3 bits of address X12.

Similarly, when symbol data "rKALTER" is input, rKALTERJ is displayed in 4 bits of address X12 (shown in parentheses in the figure), and input signal KALTER is assigned to 4 bits of address X12.

FIG. 2 is a diagram showing a symbol setting screen according to a second embodiment of the present invention. A display screen 1 of the program creation device is a symbol setting screen, and a symbol map 7 for inputting symbol data is displayed. symbol map 7
has address 8 on the sequence program in the vertical direction, and the actual addresses are X12, X13, X14,
The horizontal direction corresponds to the bit of each address, and bit number 9 is displayed.

In the second embodiment, a cursor 10 is conceived within the symbol map 7 and can be moved within the symbol map 7 by means of cursor keys (not shown). Therefore, it is sufficient to move the cursor 10 to the position of the address and bit to be allocated and input symbol data. When you enter symbol data, the cursor moves to the next position and the symbol data is inserted into consecutive bits.
If you want to allocate data, just input the symbol data as is. The figure shows an example in which the symbol rRLsORTJ is input to 4 bits of address X14.

It is also possible to specify an address at first, select the address and bit for inputting symbol data, and then move the cursor within the symbol map.

FIG. 3 is a block diagram of the hardware of a program creation device for implementing the present invention. Processor 21 controls the entire programming device. A control program for the device is stored in the ROM 22, and the processor 21 controls the device according to this control program. Necessary intermediate data is stored in the RAM 23. Sequence programs, symbol data, parameters, etc. are stored in the nonvolatile memory 24, and since the nonvolatile memory is backed up by a battery, the parameters, etc. are retained even if the power to the device is turned off.

The display control circuit 25 converts data such as a symbol map and symbol data stored in the RAM 23 into display signals and sends them to the display device 26. The display device 26 displays these symbol maps and symbol data. A CRT, liquid crystal display, etc. are used as the display device.

The counterfeit board 27 is composed of counterfeit keys consisting of soft keys, function keys having predetermined functions, and alphabet and numerical keys.

The floppy disk drive 28 can write and store the created sequence program or symbol data on the floppy disk 28a as needed.

Further, the created sequence program is transferred to a PMC (programmable machine controller) 31 built in a numerical control device (CNC) 30 and executed.

In the above explanation, the embodiment of the present invention was explained by inputting symbol data using a program creation device, but it is also possible to input symbol data to a numerical control device (CNC) from a keyboard using the sequence program creation function of the PMC31. You can also.

[Effects of the Invention] As described above, in the present invention, symbol data is input on a tabular symbol map, so symbol data can be input easily and errors are reduced.

[Brief explanation of drawings]

Fig. 1 shows a symbol setting screen of the first embodiment of the symbol data input method of the present invention, Fig. 2 shows a symbol setting screen of the second embodiment of the invention, and Fig. 3 shows a symbol setting screen of the first embodiment of the symbol data input method of the present invention. 1 is a block diagram of hardware of a program creation device for implementing the present invention. FIG. Display screen Symbol map address Bit number Symbol map Processor ROM RAM Nonvolatile memory 25 26 27 28 28a 29 Display control circuit Display device Operation panel Floppy disk drive Floppy disk interface

Claims (4)

[Claims] (1) In the symbol data input method for assigning symbols and addresses of signals of a PC (programmable controller), a symbol setting screen having a symbol map corresponding to the addresses and bits of the signals on the sequence program is installed on the program creation device. By displaying the symbol of the signal on a display screen and inputting the symbol of the signal in a corresponding position of the symbol map, the symbol of the signal and
A symbol data input method characterized by assigning addresses and bits. (2) When inputting the symbol, the corresponding address of the symbol map is called by specifying the address, the bits, and the number of symbols to be input. symbol·
Data input method. (3) Symbol data according to claim 1, characterized in that when inputting the symbol, the cursor moves within the symbol map and the symbol is input at a certain position of the cursor. Input method. (4) When inputting the symbol, call the corresponding address in the symbol map by specifying the address, the bits, and the number of symbol data to be input, input the symbol, and then move to the cursor position. The symbol data input method according to claim 1, characterized in that symbols are inputted into the symbol data input method.