JP2714273B2 - Plant monitoring device and process input point selection support device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring apparatus for displaying, measuring, recording, and analyzing the operating state of a plant by using a large number of process input points as inputs in a relatively large-scale plant. .

[0002]

2. Description of the Related Art In various types of plants such as thermal power generation and nuclear power generation, the state quantity of a plant is input as a process input to a computer or a measuring device, and the operating state of the plant is displayed, measured, recorded, analyzed, and the like. . The number of these process input points continues to increase with the increase in size, complexity, and equipment of the plant, and it is not uncommon for the number of points to reach tens of thousands. Each of these process input points is assigned to a unique tag number or a number called a point identification number in a computer or a measuring device (hereinafter, this identification number is referred to as a point identification number PID). . PID
Is slightly different depending on each plant and each unit, an example of which is shown in FIG.

When a computer or a measuring device displays the state quantities of these process input points on a CRT or the like, a PID corresponding to the process input point is designated.
A method of displaying the values and state quantities on a CRT or the like is generally used. In the case of such an interactive system, since the operator inputs the PID of the process input point to be displayed by a key, the operator must know the PID of the process input point to be displayed in advance. The PIDs of frequently displayed process input points and extremely important process input points can be stored by the operator, but can be stored very much when the number of process input points reaches tens of thousands as described above. is not. Therefore, when key inputting the PID, usually, the PID is searched for in a process input point list document called an input / output point list as shown in FIG. 11, and then the key input is performed.

As described above, the state quantity at the process input point is calculated as CR
For key input of the PID to be displayed on the T, the operator has to bear the task of memorizing the PID or searching for the PID from the input / output point list.

[0005]

As described above, when displaying the state quantity of the process input point on the CRT, the name of the process input point to be displayed is found from the input / output point list as a clue. Although the input / output list is a document in which pages are classified in advance by equipment classification and input type, if the number of process input points is thousands or tens of thousands of medium or large-scale plants, the name of the process input point Many of them are similar or have almost the same name, so you need to be careful when searching for them. For example, in the example of FIG. 11, even at the superheater steam temperature, there are an inlet side and an outlet side, and primary and secondary,
In addition, there are quite a few process input points with similar names, such as pressure and temperature. The fact that there are many process input points having such approximate names means that a PID of a different process input point is erroneously specified, or a process input point different from the process input point intended by the operator is unknowingly specified. There is a possibility.

[0006] In monitoring and measuring the operating state of a plant, these problems are very serious. For example, when an accident occurs in the plant and immediate monitoring is required, it takes time to find out from the input / output point list, or if the wrong process input point PID is specified by mistake, the action will be delayed. It is also possible that the accident will spread.

When an operator inputs a PID when monitoring, measuring, recording, or analyzing a plant operating state, the operator does not want to monitor the vagueness, but is not concerned with what engineering value of which part of which equipment in the plant. The operator himself / herself fully knows whether he / she wants to monitor and only knows the corresponding PID.

The present invention has been made in view of such a point. Even if an operator does not memorize an accurate PID, only selecting fragmentary information relating to a process input point to be monitored, the intended PID can be obtained. It is an object of the present invention to provide a plant monitoring device capable of quickly and accurately setting the state of a process input point to be monitored on a display screen.

[0009]

Means for Solving the Problems] That is the invention of claim 1, the screen state of any process input point of the plant or
Or a plant monitoring device for displaying on a printing system to monitor the plant operation state, an input / output display means having a display screen for inputting / outputting predetermined information, and a state quantity of each process input point from the plant every moment. a plant state quantity storing means for storing, its respective process input point of the plant
Point identification number and input point name, equipment classification,
Process input point information storage means for storing attribute information such as units and process input point list display requests
To set extraction conditions based on attribute information of input points
Extraction condition setting column and process that matches the extraction condition
Extraction condition setting including a list display field that can list input points
Extraction condition setting screen display that displays the screen on the input / output display means
Means and one or more of a plurality of extraction condition setting columns
Professional that matches the extraction condition set in the extraction condition setting column of
The process input point from the process input point information storage means
Pro to display a list in the list display column of the extraction condition setting screen
Access input point selection means and list display field of extraction condition setting screen
Of one or more process input points listed in
Process input point selected and designated from inside is subject to state quantity display
Point, and the status amount display target point
The state quantity at the process input point is retrieved from the plant state quantity storage means.
To display on a screen or printing system
Characteristic quantity display processing means. Also
The invention according to claim 2 is a method for detecting an arbitrary process input point of a plant.
Display the status quantity on the screen or printing system to
Display screen on the plant monitoring device that monitors the running state
Input / output display means for inputting / outputting predetermined information,
The state quantity of each process input point from the
The plant state quantity storage means and each process input point
Attribute containing the point identification number and the input point name
Process input point information storage means for storing sex information;
Request to display the status quantity at the
Multiple point identification numbers for process input points
Display point setting column that can be set, data to be displayed
Display period setting field and process input point where the period can be set
Request to display attribute information of each process input point in information storage means
Display condition setting screen including the point information request button
Display condition setting screen display means to be displayed on the input / output display means
And one or more of the
Display period setting column for the point identification number of the process input point
Stores state variables in the data period set in the plant
Means for extracting display data from the means
Out of the specified process input point for the specified period
Plants that display state quantities on a screen or printing system
And a state quantity display processing means. Ma
The invention according to claim 3 is a plant according to claim 1 or 2.
In the monitoring device, the plant state quantity display processing means
Display points for each state quantity display target point
Display point number, process input point identification
A column to list numbers and input point names, and each display point
Displays the state quantity of the process input point of the
Display data including a column for trend display on the screen or
It is characterized by outputting to a printing system. Claims
The process input point selection support device according to the fourth aspect of the invention provides a display screen.
Input / output display means for inputting and outputting predetermined information, and a plan
Process that stores information about all process input points
Input point information storage means;
An extraction condition indicating the attribute of the process input point is specified by the display request.
Input / output table for extraction condition setting screen for selection or input
Means to be displayed on the display means and a list on the extraction condition setting screen
Various selected from the attribute item of the indicated process input point
Processes entered on the attribute condition and extraction condition setting screen
Name conditions that indicate some or all of the input point names
Based on extraction condition information including at least one type of condition.
From the process input point information storage means to the extraction condition information.
Extract the information of the matching process input point and display the input / output
Pro to display a list of process input points on the column display screen
Process input point selection means and a list of process input points.
The selected process input point and the set process input point
And means for recognizing it .

[0010]

In the plant monitoring apparatus of the effects of the present invention, when the operator requests a display of the plant state variable, or pro
In the process input point selection support device,
When the power point setting request is made, first, an interactive screen for PID setting is displayed on the display screen of the input / output display means. If the operator knows the desired process input point accurately on this interactive screen, he designates the PID by key input. However, if the operator does not know the PID of the desired process input point accurately, by selecting a point list button provided on the interactive screen, an extraction condition setting column for selecting the PID from the process input point selecting means is displayed. It is displayed on the screen of the input / output display means. On this screen
The listed each species attribute items of process input point (attribute conditions
Case), for example, among the conditions relating to the input type, the conditions relating to the equipment classification of the input point, and the conditions relating to the unit of the input point, the operator can determine the attribute of the desired process input point within a known range.
Select the desired process input point and enter the name of the desired process input point.
The process input point selection means extracts only the process input points that meet the conditions from the process input point information storage means by setting the extraction conditions by key input of the conditions, and the screen of the input / output display means. To display the PID list. When the operator selects the PID of the desired input / output point from the very small number of process input points extracted and displayed in the list, the process input point selection means notifies the plant state quantity display processing means that the PID has been determined. The plant state quantity display processing means extracts the plant state data of the past and present values of the process input point stored in the process input point information storage means based on the determined PID, and outputs the plant state data to the input / output display means . Display the state quantity. In addition, the display data can be printed by a printing system if necessary.
Output to the system.

As described above, when designating a process input point to be displayed, the operator gives some information of the point to be displayed, so that a large number of process input points are narrowed down and only the relevant input point is presented to the operator. Therefore, it is possible to quickly select a process input point to be displayed or to specify a process input point accurately.

[0012]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of a plant monitoring apparatus according to the present invention. The input / output display means 3 comprises a CRT display device 1 and an input device 2 such as a keyboard and a mouse.
A plant state quantity storage means 4, a process input point information storage means 5, an input means 6, a plant state quantity display processing means 7, a process input point selection means 8, and a display means 9. . Among them, the process input point selection means 8 can be further divided into a process input point display control means 11, a process input point extraction means 12, and a process input point display processing means 13 according to its function.

Here, the plant state quantity storage means 4 is for inputting and storing the state quantity of each process input point from the plant every moment, and the process input point information storage means 5 is provided.
Stores a file in which PIDs of all process input points input from the plant, input point names, units, and information of input types are registered in advance. If the command information received via the input means 6 is a state quantity display request from the operator, the plant state quantity display processing means 7 causes the display means 9 to display interactive screen data for setting the PID on the CRT 1. If the command information input through the PID setting screen is a point list display request, a process input point selection request is made to the process input point selection means 8 to determine the PID to be displayed. 8 is activated, and if the information input to the input means 6 is a PID signal, the state quantity at the process input point corresponding to the PID is extracted from the plant state quantity storage means 4 and displayed on the CRT 1 as a graph. Request display. Process input point display control means 11 in process input point selection means 8
Receives a process input point selection request from the plant state quantity display processing means 7, performs display control of a list of process input points and a list box for selecting an extraction condition of the list on the interactive screen of the CRT 1, and performs process input. The point extracting means 12 narrows down the process input points from the process input point information storage means 5 according to the extraction condition information from the process input point display control means 11, and the process input point display processing means 13 extracts the extracted process input point group from the CRT1. Is requested to the display means 9.

Hereinafter, the operation of the plant monitoring apparatus having the above configuration will be described. An input / output display means 3 comprising a CRT display device 1 and an input device 2 such as a keyboard and a mouse.
Assumes a multi-window system and a user interface utilizing a pointing device (mouse), which are becoming the mainstream of man-machines through CRTs in recent years. In the following description, an example using a multi-window and a mouse will be described. Will be described.

When the operator requests display of the plant state quantity, the plant state quantity display processing means 7 outputs interactive screen data for setting the PID to the display means 9 and
Displays an initial dialog screen for PID setting as shown in FIG. 2 on the CRT 1 based on the dialog screen data. If the operator knows exactly the process input point to be displayed on this dialogue screen, the P is displayed in the display point column 21 in FIG.
Key in the ID. However, if the PID of the process input point to be displayed is not exactly known, the point list button 22 is selected on the interactive screen of FIG.
Any of the input information is sent to the plant state quantity display processing means 7 via the input means 6. When the PID is input by a key, the PID to be displayed is determined, and the plant state quantity display processing means 7 extracts the state quantity at the process input point from the plant state quantity storage means 4 and creates graph data. , The display unit 9 is requested to display a graph on the CRT 1. When the point list is selected, the process input point selection unit 8 is requested to select a process input point in order to determine the PID to be displayed.

The process input point selection means 8 comprises a process input point display control means 11, a process input point extraction means 12, and a process input point display processing means 13. First, the process input point display control means 11 It is determined that the request to the input point selection means 8 is a process input point selection request from the plant state quantity display processing means 7, and the process input point information storage means 5 requests the process input point extraction means 12 from the process input point information storage means 5. Outputs extraction conditions for extracting input point information. In this case, since there is no extraction condition from the operator, a default condition determined in advance is specified. For example, the process input point type is analog, the equipment classification is water quality equipment, there is no unit condition, all units are specified, and the input point name has no condition specified to the process input point extraction means 12. The process input point extracting means 12 extracts only process input points that match the process input point information from all the process input point information stored in the process input point information storage means 5 based on the specified extraction condition. Are output to the process input point display processing means 13 as process input point information. Based on the process input point information from the process input point extracting means 12, the process input point display processing means 13 includes a PID list 31 and an extraction condition setting column 32 as shown in FIG.
The display means 9 requests the display means 9 to display a window 36 including 33, 34, and 35 on the CRT 1, and the display means 9 displays the window 36 so as to overlap the CRT screen of FIG. In this window 36, instead of the operator directly inputting the PID by keying, the operator designates several conditions, displays a list of only PIDs that match the conditions, and selects the list from the list.
These conditions vary somewhat depending on each plant, but some specific examples will be given.

The first condition relates to the type of the process input point and is classified according to the type of the detector at the process input point, such as an analog input, a contact input, or a pulse input. These types are displayed in a small window of a list called a list box indicated by reference numeral 32 in FIG. 3, and can be selected by clicking the item name with a mouse. The second condition relates to the equipment classification and is shown in FIG.
Can be displayed and selected in the list box of reference numeral 33. The third condition is a unit condition. The unit of the process input point input to the present system is divided into several units, and the unit is displayed in a list box 34 and can be selected. The fourth condition is a condition for the name of the process input point, and is a window 36 shown in FIG.
By inputting a key of a part of the name of the process input point to be displayed in the input point name column 35 at the lower stage, the process input point including the lexical character can be selected.

The PID list 31 displayed on the window 36 is extracted from the process input point information storage means 5 and created by the process input point extraction means 12 as follows. Here, FIG. 4 shows the mechanism of the process input point extracting means 12, which will be described with reference to FIG.

The process input point extracting means 12 extracts information about the input type from the extraction condition information provided by the process input point display control means 11 in the input type condition extracting section 41, and Only the process input points that meet the conditions are extracted from the process input points stored in the.

The process input point information storage means 5 is provided as shown in FIG.
It stores the contents of the input point list shown in
Specifically, the file is stored in the computer as a file. As shown in FIG. 5, the storage file is a file for each input type, for example, an analog process input point information file a, a contact process input point information file b, and
The file is divided into a file c of pulse process input point information, a file d of constant process input point information, and a file e of process input point information of calculated values, so that the corresponding file can be immediately extracted from the input type condition.

As shown in FIG. 6, a process input point information file of this input type is roughly divided into an input point management information section I.
And the input point information section II. The input point management information section I is set at the beginning of the file so that the information of the process input point stored in the input point information section II can be taken out at high speed. Therefore, the facility classification condition extracting unit 42 reads out the input point management information in the file extracted by the input type condition extracting unit 41, thereby extracting the process input point information stored in the file without reading all the information. be able to. For example, if the equipment classification is “B boiler”, the line of “B boiler” in the input management information section I is read, and the process input point information of this equipment classification is from 90 lines to 1
After confirming that the data is stored up to 48 lines, the equipment classification can be extracted by reading the lines between them.

The unit condition extraction unit 43 receives the information extracted by the equipment classification condition extraction unit 42, and extracts only the process input point of the corresponding unit from the information. The process input point is determined on a point-by-point basis, and is set in the fourth field of each input point information in FIG. In general, a plurality of units of the same type exist in units of the process input point of the plant. For example, for voltage, mV, V, KV,
There are a plurality of MVs. The operator does not store the unit of each process input point, but knows what kind of unit of the process input point he wants to select. The process input point extracting means 12 has a unit information table 44 as shown in FIG. 7 which records information such as a generic name of units and a number of specific units corresponding thereto. From the unit information table 44, T, T / H, N
The unit of M3, l, 1 / H is extracted, and a process input point having any of these units is selected from the output of the equipment classification condition extracting unit 42.

The name condition extraction unit 45 compares the name information given from the process input point display control means 11 with the process input point information received from the unit condition extraction unit 43, and in FIG. A check is performed to determine whether the name information written in the third field includes the corresponding name information, and only the included process input point information is used as extracted process input point information as a process input point display process. Output to the means 13. In this way, the input type condition, the equipment classification condition, the unit condition, and the input point name condition are examined, and a process input point that matches all of them is extracted.

The process input point display processing means 13 converts the information of the extracted process input point into interactive screen information of the CRT 1 and displays a window 36 on the CRT 1 via the display means 9 as the process input point display information. In this state, the operator can select the type condition, the equipment classification condition, the unit condition, and the input point name condition. For the type condition, equipment classification condition and unit condition, specify the desired condition line from the displayed list boxes 32, 33 and 34 with the mouse, and for the input point name condition, enter all or a part of the character of the desired name. It can be designated by key input in the point name column 35.

The extraction condition information selected and specified in this way is sent to the process input point display control means 11 via the input means 6, and the process input point display control means 11 extracts the extraction condition information specified by the operator. And outputs it to the process input point extracting means 12. The process input point extracting means 12 includes a process input point display control means 11
Based on the extraction condition information received from the above, the process input point is extracted again as described above, and the result is sent to the process input point display processing means 13 as extracted process input point information. The process input point display processing means 13 converts the extracted process input point information into display information of the CRT 1 and outputs it to the CRT 1 via the display means 6. As a result, FIG.
The PID list 31 in the window 36 is redisplayed at a process input point that matches the condition specified by the operator. When the operator specifies such conditions, only the points that the operator wants to display are displayed on the window 36 of the CRT 1.

From the process input points displayed in the PID list 31, the operator selects a process input point to be displayed with a mouse. The selected information is input to input means 6
Is sent to the process input point display control means 11 to determine the PID. Next, the process input point display control means 11 sends this PID to the plant state quantity display processing means 7.

The plant state quantity storage means 4 is created by calculating and calculating based on the plant state quantity at the process input point sent from the plant to the present system via various detectors and the plant state quantity. A secondary plant state quantity is input, the state quantity is stored one by one, and its past value and present value are output. The plant state quantity display processing means 7 extracts the past and current state quantities of the process input point corresponding to the determined PID from the plant state quantity storage means 4 and converts them into CRT display information.
A graph of the process state quantity as shown in FIG. 8 is displayed on the CRT 1 via the display means 9.

As described above, in this embodiment, if the PID of the process input point to be displayed by the operator is accurately known on the CRT dialogue screen for setting the PID, the PID can be input by a key as in the conventional case. However, as the number of process input points reaches hundreds to tens of thousands,
In a large-scale plant, the PI of the process input point to be displayed
It is difficult to memorize D accurately, and if such an accurate PID is not known, the user can select a point list button provided on the PID setting screen to change the PID list 31 and the condition shown in FIG. Setting columns 32, 3
A window 36 including 3, 34 and 35 is displayed. The operator displays process input points for the purpose of monitoring operating conditions, measuring and analyzing, etc. Do you want to display the input points, what engineering value of the unit system you want to display,
We know what the process entry point name is, completely or at least fragmentarily. Therefore, the operator selects information on the process input point that he or she wants to display in the condition setting columns 32, 33, 34, and 35, and only the process input point that satisfies the condition is displayed again in the PID list 31 in the window 36. Is done. As a result, the operator can easily select from a list of a very small number of process input points including the process input points that the operator wants to display. This eliminates the pain and hassle of storing the PID of the process input point or searching for the process input point that the user wants to display from the input / output point list that reaches tens of thousands.
In addition, since process input points having similar names can be classified according to conditions, it is possible to select a point other than the point requested by the user and prevent erroneous operation and erroneous recognition.

Next, FIG. 9 shows a process input point selection support device as an application example of the present invention. In addition to the system that displays and monitors the process input points, a system that prints and maintains the process input points, an arithmetic system that uses the process input points, an automatic control system that uses the process input points, etc. The number of functions using process input points has been increasing due to recent computerization such as monitoring, control, measurement, and analysis.Man-machines that select process input points for each of these functions are not available. It is desired that all functions can be unified by the same operation.

The process input point selection support device shown in FIG. 9 is configured so that the process input point can be easily selected in common for each of these functions, and has a display screen as interactive means. A CRT input / output device 51;
A process input point information storage means 52 for storing process input point information, an input means 53 for inputting information from an operator input via the CRT input / output device 51, and an operator received via the input means 53 Process input point selecting means 54 for extracting a process input point from the process input point information storage means 52 based on the information of the process input point information, and output means for displaying output information from the process input point selecting means 54 on the screen of the CRT input / output device 51 The process input point selected and determined by the process input point selecting means 54 is output to the process input point using means 56.

Here, the process input point using means 56
This means a function in which the operator designates a process input point via a man-machine and uses the process input point, such as a process input point printing and calculation function. When it becomes necessary for the process input point using means 56 to specify a process input point from the operator, the process input point selecting means 54 is requested to select a process input point. The process input point selection means 54 outputs dialog screen information to the operator to the output means 55. This information is interactive screen information corresponding to the window 36 of FIG. 3 shown in the above embodiment, and the operator can select a list condition of the process input point in the same manner as in the above embodiment.
The selected information is sent to the process input point selecting means 54 via the input means 53. Process input point selection means 54
Extracts a process input point that matches the condition selected by the operator from the process input point information storage means 52, and again displays a list of PIDs on the interactive screen of the CRT input / output device 51 via the output means 55. The operator sets the process input point that he / she wants to specify in the PID
When a selection is made from the list, the information is sent to the process input point selection means 54, and then sent to the process input point utilization means 56 as the process input point determined by the operator.

As described above, according to the application of the present invention, the same effects as those of the above-described embodiment can be obtained, and the operator's man-machine can determine the process input point of the process input point printing system or the operation system. It is possible to provide all functions that require intervention through the same unified operation.

[0034]

As is clear from the above description, according to the present invention, even in a medium- or large-scale plant where the number of process input points reaches tens of thousands, the operator can display the process input points he wants to display or output. It is possible to select points quickly and accurately without pain and effort.
In addition, the ability to quickly and accurately select process input points not only reduces operator pain and effort when selecting plant operating conditions, but also performs measurement, storage, and analysis, as well as plant accidents and emergency operations. In this case, erroneous operation and erroneous recognition can be prevented. Therefore, the present invention contributes to reducing the burden on plant operators and operators and improving safety and operability in plant operation.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a plant monitoring device of the present invention.

FIG. 2 is an example of an initial dialog screen for setting a PID.

FIG. 3 is an example of an interactive screen displaying a process input point list and an extraction condition setting field in a window.

FIG. 4 is a block diagram showing the function of a process input point extracting means.

FIG. 5 is a diagram showing a file configuration of a process input point information storage means.

FIG. 6 is a diagram illustrating a configuration of a process input point information file.

FIG. 7 is a diagram illustrating a configuration of a unit information table.

FIG. 8 is an example of a screen displaying a state quantity at a process input point.

FIG. 9 is a block diagram showing an application example of the present invention.

FIG. 10 is a diagram illustrating an example of an expression system of an identification number (PID) of a process input point.

FIG. 11 is a diagram showing a conventional list of process input points.

[Explanation of symbols]

 1 CRT display device 2 Input device 3 Input / output display means 4 Plant state quantity storage means 5 Process input point information storage means 6 Input means 7 Plant state quantity display processing means 8 Process input point extraction means 9 Display means 11 Process input point display control means 12 Process input point extraction means 13 Process input point display processing means

Claims (4)

(57) [Claims] 1. A plant monitoring apparatus for monitoring a plant operation state by displaying a state quantity at an arbitrary process input point of a plant on a screen or a printing system , wherein the input / output display has a display screen and inputs / outputs predetermined information. Means, plant state quantity storage means for storing the state quantity of each process input point from the plant from time to time, and poi for each of the process input points of the plant.
Unit identification number and input point name, equipment classification, unit, etc.
Process input point information storage means for storing attribute information and a process input point list display request
Multiple extractions that set extraction conditions based on attribute information of emphasis
Condition setting column and process input that matches the extraction condition
Extraction condition setting screen including a list display column that can display points in a list
Condition setting screen display for displaying on the input / output display means
Means, and one or more extraction conditions among the plurality of extraction condition setting fields.
Process that matches the extraction condition set in the output condition setting column
Retrieve an input point from the process input point information storage means
A process input point selecting means for displaying a list in the list display field of the extraction condition setting screen;
From one or more process input points
The process input point that was
The state of the process input point that is the state quantity display target point
Quantity from the plant state quantity storage means, and
And a plant state quantity display processing means for displaying on a surface or a printing system . 2. The state of any process input point of the plant
The plant operation status is displayed by displaying the amount on the screen or printing system.
In a plant monitoring device that monitors the condition, Input / output display means having a display screen for inputting / outputting predetermined information
When, Record the state quantity of each process input point from the plant every moment
Means for storing plant state quantity to be remembered; Point identification number for each process input point
Process for storing attribute information including signal and input point names
Input point information storage means, The state quantity table is requested by the state quantity display request of the process input point.
Point identification number of process input point to be indicated
Display point setting field where multiple numbers can be set
Display period setting field for setting the data period
Attribute information of each process input point in the process input point information storage means.
Information including a point information request button for requesting information display
Display condition setting for displaying the item setting screen on the input / output display means.
Fixed screen display means, One or more than one set in the display point setting column
The display period setting of the point identification number of the process input point
The state quantity for the data period set in the
Display data extracting means for extracting from the quantity storage means; Enter the designated process extracted by the display data extraction means
The state quantity of the specified point during the specified period
Plant state quantity display processing means for displaying on the system
A plant monitoring device characterized by the above-mentioned. 3. The plant state quantity display processing means,
Display points for each state quantity display target point
Display point number, process input point identification
A column for displaying a list of numbers and input point names, and each display
Display the state quantity of the process input point
Displays display data including a column for number display and trend display.
Output to a surface or printing system
Item 3. The plant monitoring device according to item 1 or 2. 4. A display screen for inputting and outputting predetermined information.
Input / output display means and stores information about all process input points of the plant
A process input point information storage means and a process in response to a predetermined display request from the input / output display means.
Select or enter an extraction condition indicating the attribute of the input point.
Display the extraction condition setting screen on the input / output display means
Means and process inputs listed on the extraction condition setting screen
Various attribute conditions selected from attribute items of points and the extraction
Name of the process input point entered on the output condition setting screen
At least one of some or all of the name conditions
Process based on the extraction condition information
From the input point information storage means, a program matching the extraction condition information
Retrieves information on the input point of the process and displays the input / output display means
Process input to display a list of processes the input point to the screen
Point selection means; and a process input selected from the list of process input points.
Means for recognizing the force point as a set process input point
Process input point selection support device characterized by comprising:
Place .