JPH03123817A - Industrial supervisory and controlling device - Google Patents

Abstract

PURPOSE:To use a file area efficiently by providing a single data file group, a file conversion table, an actual data file conversion part, etc., and storing a common file with data which are common to plural data output devices. CONSTITUTION:Data are gathered from a plant, etc., by an application program, arithmetic is performed according to the data, and the arithmetic result is stored in a data file 21. Further, the number of a CRT where the data are displayed is stored as a device number in a device number storage part 70 and information on a screen number, etc., is stored in an actuation information setting part 40. The file conversion table 90, on the other hand, is stored with a physical file number (b) and a file classification number (c) corresponding to a logical file number (a). Then the actual data file conversion part 80 converts the number (a) which does not depend upon a device described in a picture program as a program for data output into a number (b) by referring to the table 90 and the device number in the storage part 70, and recognizes whether the data are characteristic or common at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to industrial monitoring and control equipment, and more specifically, in various manufacturing and production lines that make up a plant, a single monitoring and control equipment main body is equipped with a CRT, etc. The present invention relates to an industrial monitoring and control device as a man-machine system that connects a plurality of data output devices such as printers and displays and records various industrial values based on data collected through the main body of the monitoring and control device.

(Prior Art) Conventionally, in this type of industrial monitoring and control equipment, when a plurality of data output devices such as CRTs are connected to one main body of the monitoring and control equipment, a configuration as shown in FIG. 3, for example, has been adopted. ing. Now, regarding the case where there are two data output devices,
This conventional example will be explained below.

In other words, in the conventional example shown in FIG. 3, a storage unit for screen programs necessary for monitoring control, a display control unit for one screen of display data files, etc. are provided in correspondence with two CRTs IOA and IOB as data output devices. Two sets of each are prepared. In the figure, 2°A and 20B are a display data file group 3 having a plurality of data files 21 in which various data collected from plants etc. by an application program and subjected to industrial value calculations are set.
0A and 30B are screen program storage units in which screen programs as data output programs are stored; 4OA;
40B is a screen activation information setting unit in which the number of the screen to be activated by the application program is set; 5°A, 50B is an interpreter 51A that decodes the screen program and develops it into a drawing command string for the CRT controllers 52A, 52B; 51B, and a CRT controller 52A, 52B including screen memory. This is a screen display driving section as a moving section. In addition, in the display data file groups 20A and 20B in the figure, a
is a logical file number, and b is a physical file number indicating the actual file position.

Here, the application program collects input/output (Ilo) data of the plant, performs various industrial value calculations, and displays data for the display data file groups 20A and 20B.
It functions to set data to be expressed in numerical values, graphs, etc. on T10A and 1oB, and to activate the display on CRTIQA and IOH.

Next, an outline of the drawing process for collected data in this conventional example will be explained with reference to FIG.

This FIG. 4 is for drawing a bar graph created based on collected data on one CRTIOA, for example. First, the position of the bar graph (
Xoyyo) and height h are calculated by the application program and set in the display data file group 20A.

At the same time, the screen number serving as an index of the bar graph is also set in the screen activation information setting section 40A.

Based on the set display data and screen number, the interpreter 51A in the screen display drive unit 50A retrieves a predetermined screen program (bar graph program) from the screen program storage unit 30A according to the screen number, and extracts the digit 11 (xa) as a parameter. , yo) and height h from the display data file group 20A to generate a CRT drawing command string to be written to the CRT controller 52A, and output it to the CRT controller 52A.

Next, this CRT controller 52A
A video signal is output to C:RT10A, and a bar graph G reflecting the collected data after the target calculation is drawn on the C:RT10A.

In this way, in the above conventional example, display data file groups, screen program storage units, screen display drive units, etc. are all required for the number of data output devices. This is another conventional example shown in FIG.

That is, in this conventional example, the screen program storage section 30 and the screen display drive section 50 are integrated, except for the display data file groups 20A and 20B, as shown in the figure.

However, the device number storage unit 70 and display data file group switching unit 60 for specifying the CRT IOA and IOB are
, it is necessary to newly provide a physical address translation unit 53, etc. In addition, in FIG. 5, 40 is a screen startup information setting section;
51 is an interpreter, and 52A and 52B are CRT controllers.

(Problems to be Solved by the Invention) In the conventional example shown in FIG. 3 or FIG. 5 described above, display data file groups are individually provided corresponding to the number of data output devices.

Here, the reason why the display data file group cannot be integrated is as follows.

In other words, the screen program is a program that does not depend on the number of hardware data output devices, so when drawing the same data on multiple data output devices, one A screen program is sufficient. However, temporarily integrating a group of display data files and individually selecting out-of-order data files using one screen program inevitably requires information about the number of data output devices to be included in the screen program. In this case, the screen program becomes dependent on the data output device, resulting in a contradiction.

For these reasons, it is impossible to integrate display data file groups in any of the conventional examples, but this is because even if the application program has common industrial values, it is not possible to integrate the display data file group unique to the data output device. This means that data must be sent and set individually. For this reason, conventionally, when there are n data output devices, the data file capacity (memory capacity) is n times larger than when there is only one data output device, which leads to larger files and higher costs. The number of times data is set by an application program also increases as the amount of data common to a plurality of data output devices (common data) increases, resulting in a problem of increased software load.

In addition, plant data that changes from moment to moment needs to be collected by a single application program at the same time, and set to multiple files at the same time, so-called common data. In order to compensate for the simultaneity of data transfer, it was necessary to consider, for example, providing a buffer for data transfer.

The present invention was proposed in order to solve the various problems mentioned above, and its purpose is to allow one application program to access multiple data output devices, and to Provides an industrial monitoring and control device in which a common data file that stores common data for data output devices and an individual data file that stores individual data for each data output device can be used properly within a single display data file group. It's about doing.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a single data file consisting of a plurality of data files, in which data collected and processed through the main body of a supervisory control device is selectively set by an application program. A data file group, a device number storage section in which the device number of the data output device is set by the application program, and a common device in which each data file indicated by a logical file number stores data common to each data output device by the application program. A file identification number that distinguishes whether it is a data file or an individual data file that stores data specific to each data output device.

A file conversion table in which a physical file number indicating the actual file position is set, the device number and the contents of the file conversion table are imported, and a logical file is created based on the logical file number written in a data output program such as a screen program. A real data file converter that converts a file into a physical file and outputs data in a predetermined data file, and a data output device based on the data output from the real data file converter after decoding the data output program. Output of a screen display driver, etc. that generates data to be output by, takes in the device number and the contents of the file conversion table, selects and starts a data output device that actually outputs data from a plurality of data output devices. The apparatus is equipped with a device driving section.

(Operation) According to the present invention, there is provided a file conversion table in which a logical file number, a file distinction number indicating the distinction between a common file/individual file, and a physical file number are associated with each other, and a By providing an actual data file conversion unit that performs conversion, a device number storage unit, etc., data that is common to multiple data output devices can be made into a common file within a single data file group, and the file capacity can be reduced. It is possible to meet demands such as reduction of data and simultaneity of common data. At the same time, since data unique to each data output device can be stored as individual files, it is possible to cope with the case where some output data differs for each data output device without any problem.

(Example) The present invention will be described in detail below with reference to the drawings.

FIG. 1 shows the configuration of this embodiment. Components that are the same as those in FIG. 5 are denoted by the same reference numerals, and a detailed description thereof will be omitted. Hereinafter, different parts will be mainly explained.

That is, in this embodiment, a file conversion table 90 is provided in contrast to the conventional example shown in FIG. is used after being separated into an individual data file specific to each data output device and a common data file common to each data output device.

Furthermore, in this embodiment, the file conversion table 90
An actual data file conversion section 80 is provided for extracting data corresponding to the screen program from each data file 21 in the display data file group 20 according to the contents of the display data file group 20 and the device number in the device number storage section 70.

Here, FIG. 2 shows details of the file conversion table 90. In the same figure, as above, a is a logical file number independent of the data output device written in the screen program, b is a physical file number indicating the actual file position, and C is the logical file number a and the physical file number. This is a file identification number for distinguishing whether the data file is an individual data file or a common data file, and the file conversion table 90 is a file identification number for distinguishing whether the data file is an individual data file or a common data file. It consists of number C. Note that, as shown in the figure, when there are two CRTs as data output devices, IOA and 10B, the file identification number C means that II O+l is the common data file of CRT IOA and IOB, Individual data file for the second device (eg CRT 10A).

Assume that "2" indicates the individual data file of the second device (for example, CRT 10B).

Therefore, in the example shown in FIG. 2, logical file number II
Q II, "1" corresponds to the physical file whose file number is l(0"1") as a unique data file of CRTIOA, and the logical file number rt 2 #, II 3
rp is a common data file for CRT IOA and IOB with file numbers 112 Ir, II 3 I
Corresponds to a physical file that is I.

Furthermore, the logical file number "4", it 5 n is CR
The file number is O as a TIOB specific data file.
+IIt I II correspond to the physical files, respectively.

Next, this operation will be explained.

First, data is collected from a plant etc. by an application program, predetermined calculations are performed based on this data, and the calculation results are stored in multiple data files 2.
It is stored in 1. Further, the application program stores the number of the CRT on which data is to be displayed as a device number in the device number storage section 70, and
Information such as the screen number is stored in the startup information setting section 40.

On the other hand, the file conversion table 90 stores a physical file number and a file distinction number C corresponding to the logical file number a.

Then, the actual data file conversion unit 80 refers to the file conversion table 90 and the device number in the device number storage unit 70, and converts the device (CRT IOA) described by the screen program as the data output program.
or 10B), converts the logical file number a that does not depend on Perform the process of passing the .

As described above, by providing the file conversion table and the actual data file conversion section, it is possible to access multiple CRTs with one application program.
Moreover, data common to a plurality of devices can be converted into a common file, and an industrial monitoring and control device having one individual file can be realized.

Note that the industrial monitoring and control device according to the present invention can also be applied when three or more data output devices are connected.
The data output device is not limited to a CRT, a printer, or the like.

(Effects of the Invention) As described above, according to the present invention, in the conventional example, for example,
A total of 8 data files (4 each) that were distributed in 2 display data file groups corresponding to 2 data output devices are transferred to some of the data files in a single display data file group (for example, 2 The data can be reduced to 6 by making the files (2) common data files and the remaining data files individual data files. This effect becomes more pronounced as the number of data output devices increases. For example, in a system with three data output devices, the number of data files that would previously be 12 (=4X3) will be reduced to 8 (=4X3-2X2). will be sufficient.

Therefore, according to the present invention, a single data file group, a file conversion table, an actual data file conversion unit, etc. are provided,
By creating a common file for data that is common to multiple data output devices, it is possible to improve the efficiency of file space, reduce file capacity and reduce costs, and even when the amount of common data increases, the data set can be maintained. It is possible to prevent an increase in software load without increasing the number of times.

Furthermore, it is possible to realize an industrial monitoring and control device that can meet the requirement for common data simultaneity without providing a buffer or the like.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is an explanatory diagram of a file conversion table, Fig. 3 is a block diagram showing the first conventional example, Fig. 4 is an explanatory diagram of its operation, FIG. 5 is a block diagram showing a second conventional example. 10A, IOB...CRT 20...Display data file group 21...Data file 30...Screen program storage section 40...Screen activation information setting section 50...Screen display drive section 51... Interpreters 52A, 52B...CRT controller 53...Physical address conversion unit 70...Device number storage unit 80...Actual data file conversion unit 90...File conversion table a...Logical file number b... ...Physical file number C...File distinction number

Claims (1)

[Scope of Claim] An industrial monitoring and control device comprising a plurality of data output devices that output data collected and processed through a main body of the monitoring and control device, wherein the data is selectively set by an application program. a single data file group consisting of data files; a device number storage section in which the device number of the data output device is set by the application program; and a device number storage section in which the device number of the data output device is set by the application program; A file identification number that distinguishes whether the file is a common data file that stores data common to each data output device or an individual data file that stores data unique to each data output device, and indicates the actual file location. A file conversion table in which a physical file number is set, and the device number and the contents of the file conversion table are imported, and the logical file is converted to a physical file based on the logical file number written in the data output program. an actual data file converter that decodes the data output program and outputs data in a predetermined data file; and data that is output by the data output device based on the data output from the actual data file converter after decoding the data output program. an output device drive unit that generates the data output device, takes in the device number and the contents of the file conversion table, and selects and starts a data output device to actually output data from the plurality of data output devices. An industrial monitoring and control device characterized by: