JP3491781B2 - How to create a scale conversion program in tabular format - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to relates to scaling of data definitive to the programmable controller, and more particularly to creating a program for scaling an input or output variable, such as analog data or counter data.

[0002]

2. Description of the Related Art Conventionally, when a program for input variable or output variable scale conversion of a system controller is created, a scale conversion setting screen is as shown in FIG. Although the figure is an example of the input variable, the scale conversion of the output variable is programmed in the same manner, so that the illustration is omitted. In the figure, IW0100 represents the address of the input variable, that is, the number, × 1000 ÷ 1024 represents the scale conversion designation, and → MW02000 represents an instruction to store the scale conversion result in the address MW02000.

[0003]

As described above, in the conventional technique, there is no name, symbol, unit or name corresponding to the input variable, and a method for creating a scale conversion program is created by using only the variable number as a clue. It was However, in the conventional technology, there is no name corresponding to the input variable, the symbol or unit of the variable before scale conversion, and the symbol or unit of the variable after scale conversion. A document that describes the output specifications,
For example, I often have to refer to the operating instructions,
It was not easy to create a scale conversion program. Further, even when the program is maintained, it is not efficient because the name and unit of the variable cannot be seen on the screen of the programming device. Therefore, the present invention provides a method for easily creating a scale conversion program for input variables and output variables.

[0004]

In order to solve the above problems, the first invention is to convert data into an arithmetic processing program.
Equipped with a compiler that scales multiple input variables externally imported to the plant system controller.
In the method of creating the program for converting the input variable scale to be converted, the data displayed on the screen of the programming device of the controller is in a table format , and as the data in the table format, it is registered in advance when the number before conversion is input in the number column.
The symbol column, the unit column, and the
Symbol of variable before conversion and unit and conversion of variable before conversion
Automatically display the name of the previous variable and convert it to the second number field
If you enter the subsequent number, the
Variables after conversion into the 2 symbol column and the 2nd unit column respectively
The symbol and the unit of the converted variable are automatically displayed and
The unit before conversion will be the unit after conversion in the kale conversion specification field
Enter the program to convert the scale so that
The created tabular data can be processed by the compiler.
I converted it into a machine language. The second invention
Is a compiler that converts data into arithmetic programs
Control from inside the plant system controller.
Output variable scale conversion professional that outputs the data to the outside
The programming method of the controller
The data displayed on the screen of the
Enter the pre-conversion number in the number field as table format data
Then, according to the information registered in advance, the symbol column and unit
In the column and name column, the symbol of the variable before conversion and before conversion
The unit of the variable of and the name of the variable before conversion are automatically displayed,
If you enter the converted number in the second number field, it will be registered in advance.
The second symbol column and the second unit column are
The symbol of the converted variable and the unit of the converted variable are
It is automatically displayed and the unit before return is displayed in the scale conversion specification column.
A program to convert the scale so that it becomes the converted unit.
And enter the tabular data created in this way
It is designed to be converted into a machine language by a compiler .

[0005]

By the above means, the name of the input / output variable, the symbol and unit of the variable before conversion, and the symbol and unit of the variable after conversion can be clarified, so a program for input / output scale conversion can be created on the screen of the programming device. Easy to do. In addition, since the weight of the variable becomes clear, the program can be efficiently maintained.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an example of a scale conversion designation screen displayed on the screen of the programming device. In the figure, 1 is a name column of input / output variables, 2 is a number column of variables before conversion , 3 is a symbol column of variables before conversion, 4 is a unit column of variables before conversion, 5
Is a scale conversion designation field , 6 is a variable number field after conversion, and 7
Is the symbol column of the variable after conversion, 8 is the unit of the variable after conversion
Represents a column . FIG. 2 is a flow chart showing the procedure when the operator specifies the scale conversion. This procedure will be described with reference to FIGS. 1 and 2 in the case where the variable is the actual incoming line speed in FIG. First, the number “IW0100” before conversion is input in the number field of 2. When this data is entered, "ELSP" and "100 m" are automatically added to the 3 symbol columns, 4 unit columns, and 1 name column according to the information registered in advance as controller data.
"/ Min / 1024""entrance line speed record" is displayed. The symbols, units and names can be modified as needed. Next, the converted number "MW
Enter "02000". Once this data is entered,
"E-SPEED" and "0.1 m / min" are automatically displayed in each of the symbol column 7 and the unit column 8 by the information registered in advance as the data of the controller. The symbols and units can be modified as needed. Next, in the scale conversion designation field of 8, enter a program for scale conversion so that the unit before conversion becomes the unit after conversion, “× 1000 ÷ 1024” in the figure. Similarly, other lines, that is, "central tension detection", "winding length counter", etc. are input in the procedure of FIG. The table data created in this way is converted into the machine language of the controller by the compiler of the programming device of the controller. Although the embodiment has been described with respect to the scale conversion of the input variable, the same applies to the scale conversion of the output variable, and thus the description thereof is omitted.

[0007]

As described above, according to the present invention, the data to be input to the tabular program specifications displayed on the screen of the programming device is intuitive and easy to understand. This has the effect of facilitating program maintenance and efficient maintenance.

[Brief description of drawings]

[Figure 1] Scale conversion specification screen

FIG. 2 is a flowchart showing a procedure for specifying scale conversion.

[Figure 3] Conventional scale conversion program screen

[Explanation of symbols]

1 variable name column, 2 pre-conversion variable number column, 3 pre-conversion variable symbol column, 4 pre-conversion variable unit column, 5 scale conversion specification column, 6 post-conversion variable number column, 7 post-conversion variable symbol Column, 8 Unit column for converted variables

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G05B 19/05

Claims (2)

(57) [Claims] 1. A method for converting data into an arithmetic processing program
In the method of creating a program for input variable scale conversion , which is provided with a compiler and scale-converts a plurality of input variables externally taken into the system controller for plant.
The data is in tabular form , and as the data in the tabular form, it is already registered when the number before conversion is entered in the number field.
Converted to symbol column, unit column and name column respectively according to information
The symbol of the previous variable and the unit of the variable before conversion and the
The name of the number is automatically displayed, and the converted number is entered in the second number field to register in advance.
The second symbol column and the second unit column are
The symbol of the converted variable and the unit of the converted variable are
It is automatically displayed, and the unit before return is set as the unit after conversion in the scale conversion specification field.
Input a program to convert the scale so that the tabular data created in this way
A method for creating a scale conversion program in a table format, which is characterized by converting to a machine language by. 2. A method for converting data into an arithmetic processing program
In the method for creating the output variable scale conversion program that outputs control data from the inside of the plant system controller to the outside, it is displayed on the screen of the controller programming device.
The data is in tabular form , and as the data in the tabular form, it is already registered when the number before conversion is entered in the number field.
Converted to symbol column, unit column and name column respectively according to information
The symbol of the previous variable and the unit of the variable before conversion and the
The name of the number is automatically displayed, and the converted number is entered in the second number field to register in advance.
The second symbol column and the second unit column are
The symbol of the converted variable and the unit of the converted variable are
It is automatically displayed, and the unit before return is set as the unit after conversion in the scale conversion specification field.
Input a program to convert the scale so that the tabular data created in this way
A method for creating a scale conversion program in a table format, which is characterized by converting to a machine language by.