JPH06341867A - Monitoring and control apparatus - Google Patents

Abstract

PURPOSE:To provide a monitoring and control apparatus which can monitor plants in a wide area easily, and at a low cost. CONSTITUTION:A network interface part 12 receives data from a plant controller or the like via a network 100 and transmits operating instruction data to the plant controller or the like via the network 100. A database access part 6 takes out data required for executing the wife-area monitoring operation of plants from a collection database 8. A display and control part 5 displays the required data on a display device. A cyclic part 7 collects and accesses a database cyclically. An expansion display and control part 15 displays expansion display data for executing a wide-area monitoring operation on the display device. An overall supervision and control part 11 supervises and controls the above-mentioned individual constituent elements.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a man-machine type supervisory controller for supervisory control of a plant.

[0002]

2. Description of the Related Art FIG. 18 shows a Mitsubishi integrated control system M, for example.
It is a block diagram of the conventional supervisory control device as shown in SE-H323-B in an ELTAS catalogue. FIG.
In FIG. 1, 1 is a supervisory control device that monitors and controls a plant (not shown), 2 is a plant simulator that simulates the plant, 3 is a plant management computer that manages the plant, and 4 is a plant controller that controls the plant. The monitoring control device 1 uses the operation history data 141a.
Operation history collection display control unit 141 for collecting and displaying
Overview display control unit 142 that collects and displays overview data (alarm data) 142a, trend collection display control unit 143 that collects and displays trend data 143a, and controller operation that collects and displays controller data 144a Display control unit 144, input / output control unit 1
3, a network interface unit 12, and an overall control unit 11. CR in the input / output control unit 13
A display device 131 such as T and a keyboard device 132 for control operation input are connected. The display device 131 is provided with a display interlocking input device 131a such as a touch panel. The plant simulator 2, the plant management computer 3, and the plant controller 4 are connected to the network interface unit 1 of the supervisory control device 1 via the network 100.
Connected to 2. The application unit 14 includes an operation history collection display control unit 141, an overview display control unit 142, a trend collection display control unit 143, and a controller operation display control unit 144.

Next, the operation will be described. The plant data collected by the plant controller 4, the plant management data calculated by the plant management computer 3, and the plant simulation data generated by the plant simulator 2 are the entire monitoring control device 1 via the network 100 and the network interface unit 12. It is input to the integrated control unit 11. These data are processed by the application unit 14 according to the purpose of monitoring control, and displayed on the display device 131 via the input / output control unit 13. The operator visually recognizes and judges this display image, and inputs the operation of the plant from the display device 131 and the keyboard device 132 according to the judged plant state. This operation input is input / output control unit 1
It is input to the overall control unit 11 via 3. This operation input is processed by the application unit 14 according to the supervisory control purpose, and the network interface unit 12 and the network 1 are processed.
00 to the plant controller 4, the plant management computer 3, and the plant simulator 2 to change the plant control parameters, management parameters, and simulation parameters.

Next, the operation history collection display function will be described as an example of the application unit 14. When an operation is performed by the display device 131 and the keyboard device 132, the operation history collection / display control unit 141 collects operation data via the input / output control unit 13 and the overall control unit 11, and accumulates the operation data as operation history data 141a. . This operation history data 14
1a is edited by the operation history collection / display control unit 141 as necessary, and is integrated into the overall control unit 11 and the input / output control unit 1.
3 is displayed on the display device 131 via 3 to provide the operation history data to the operator.

Next, an overview screen will be described as an example of the application unit 14. The overview screen is one of the standard instrumentation screens, and the tags controlled by the controller as shown in FIG. 19 are grouped to display a mixed list.
It is a screen for performing color change display depending on the state (alarm). The state of this tag is passed to the overview display control unit 142 through the network interface unit 12 and the overall control unit 11 shown in FIG. 18, is called from the keyboard device 132 as necessary, and is passed through the input / output control unit 13. It is displayed on the display device 131.

The above-mentioned tag is a set of variables indicating the control method and state of the plant, and the overview screen displays these tags in a grouped form. Tag T1, tag T2 and tag T3 are group A, and tag T4 and tag T5. Tag T6 is group B, tag T1 is a minor failure, tag T2 is a major failure, and tag T is
When 3 is normal, the tag T4 is minor, and the tags T5 and T6 are normal, the display is as shown in FIG.

[0007]

Since the conventional supervisory control device is constructed as described above, it is possible to monitor the entire plant at one time as was used before the distributed control system was widely used. difficult. Further, a large-screen display device is being used to cover this drawback, but it has drawbacks such as an expensive device and insufficient operation (touch operation is not possible). For example, the overview screen has a 21-inch CRT, and in order to make it easy to see, the above-mentioned tag group display graphic requires a certain size, and there is a limit of about 64 groups per screen.
The number of tags in a group is 32 tags at the maximum due to the operation, and the number of tags that can be monitored on one screen is 2048. In addition, there are about 20,000 tags in the entire plant, and in order to display all tags, about 10 screens (20,000 / 204
8) Necessary, so it is difficult to monitor all plants at once. In addition, it is difficult to display all the tags on one CRT because of the performance of the CPU and the size of the required main storage device. This drawback is possible if there is a large screen with high resolution, but it is difficult to operate in case of failure, which is another important function of the supervisory control device. Currently, the screen of the failed tag group (overview screen) is touched to open the screen for operation at the time of failure, but on large screens, it is often posted at a high place on the wall, and touch operation is difficult.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an inexpensive monitoring control device which can easily monitor a wide area of a plant.

[0009]

A first aspect of the present invention is a network interface section 12 for receiving data from a plant controller or the like via a network 100 and transmitting operation command data to the plant controller or the like via the network 100. And a database access unit 6 that retrieves data necessary for executing wide-area monitoring of the plant from the collection database 8, a display control unit 5 that displays the required data on a display device, and collection and access of the database cyclically. A cyclic section 7 to be executed by the display unit, an extended display control section 15 for displaying extended display data for receiving data from the collection database 8 and performing wide area monitoring on a display device, and overall control for overall control of the above components. And a part 11.

According to a second aspect of the present invention, in the configuration of the first aspect, when the extended display database 9 is connected to the extended display control unit 15 and extended display is executed, the extended display database 9 is used.
The extended display data is also extracted from the.

In the third aspect of the invention, in the configuration of the first aspect of the invention, the database access unit 6 is connected to a tag page expansion database 10 indicating a set of variables indicating a plant control method and state, and the collection database 8 is accessed. At this time, the data of the tag page expansion database 10 is also taken out.

In a fourth aspect of the invention, in the configuration of the second aspect, when the tag page expansion database 10 is connected to the database access unit 6 and the collection database 8 is accessed, the data of the tag page expansion database 10 is also extracted. It is composed.

According to a fifth aspect of the invention, in the configuration of the first aspect of the invention, instead of connecting the extended display control unit 15 to the overall control unit 11, the extended display control unit 15 is connected to the extended display control unit 1.
5 is configured to access the tag page expansion database 10 to find the corresponding page, and the display control unit 5 is connected to the cyclic unit 7.

In a sixth aspect of the invention, in the configuration of the fifth aspect, when the tag page expansion database 10 is connected to the database access unit 6 and the collection database 8 is accessed, the data of the tag page expansion database 10 is also extracted. It is composed.

[0015]

In the first aspect of the invention, the network interface section 12 receives data from the plant controller or the like via the network 100 and transmits operation command data to the plant controller or the like via the network 100. The database access unit 6 retrieves from the collection database 8 the data necessary for executing the wide area monitoring of the plant. The display control unit 5 causes the display device to display the necessary data. The cyclic unit 7 cyclically collects and accesses the database. The extended display control unit 15 causes the display device to display extended display data for wide area monitoring. Overall control unit 11
Controls the above components in a centralized manner.

In the second aspect, when the extended display is executed, the extended display data is also retrieved from the extended display database 9.

In the third invention, when the collection database 8 is accessed, the tag page expansion database 1 is accessed.
Data of 0 is also taken out.

In the fourth invention, when the collection database 8 is accessed, the tag page expansion database 1
Data of 0 is also taken out.

In the fifth invention, the extended display control unit 1
The corresponding page is determined by the access of the tag page expansion database 10 by the user 5.

In the sixth invention, when the collection database 8 is accessed, the tag page expansion database 1
Data of 0 is also taken out.

[0021]

【Example】

Example 1 (corresponding to claim 1). First Embodiment FIG. 1 is a block diagram showing a main configuration of a supervisory controller according to a first embodiment of the present invention. In FIG. 1, the monitoring control device 1a includes a network interface unit 12 that receives data from the plant controller 4a and the like via the network 100 and transmits operation command data to the plant controller 4a and the like via the network 100, and a plant. Database access unit 6 that retrieves the data necessary for executing the wide area monitoring from the collection database 8, the display control unit 5 that displays the required data on the display device, and the collection and access of the database are performed cyclically. A cyclic unit 7, an extended display control unit 15 for receiving data from the collection database 8 and displaying extended display data for wide area monitoring on a display device, and an overall control unit 11 for controlling and controlling each of the above components. It is equipped with. The monitoring control device 1b receives data from the plant controller 4b or the like on the network 1
Network interface unit 12 for receiving the operation command data to the plant controller 4b or the like via the network 100, and a database for retrieving data necessary for executing the wide area monitoring of the plant from the collection database 8. Access unit 6,
Display control unit 5 for displaying the necessary data on a display device
A cyclic unit 7 for cyclically collecting and accessing a database, an extended display control unit 15 for receiving extended data from a collection database 8 and displaying extended display data for wide area monitoring on a display device, An overall control unit 11 that controls each component is provided.

Next, the operation of this embodiment will be described with reference to FIGS. 2, 3, 4, 5, and 6 in which the conventional overview monitoring display is expanded and displayed, and then the detailed contents are described. To do. In FIG. 2, 21 to 24 show overview screen transfer routes to other CRTs (display devices) on the same station and extended display to a plurality of CRTs. When an event (such as touch input by the operator) requesting the extended overview function occurs (21), the extended display control menu window (FIG. 4) is displayed (22).
When the transfer destination and the data acquisition destination are set and the transfer is executed (23), when the data acquisition destination is the own station and the CRT display is another CRT, the screen is transferred and displayed on the other CRT of the own station (24). ). Also, a plurality of Cs in 23
If RT is selected, only that CRT (CRT
1, CRT2, CRT3, CRT4) are displayed.

FIG. 3 shows a case where the data acquisition source is another station. In this case, as shown below, data is received from another station and a transfer screen is displayed on the own CRT of the own station or another CRT. When an event requesting the extended display function occurs (31), the extended display control menu window (FIG. 4) is displayed (32). Forwarding destination·
When the data acquisition destination and the like are set and the transfer is executed, the data is sent to the station where the other party's CRT exists via the network interface unit 8 (33) (34).
Upon receiving this request, the partner station sends the requested data to the requesting station, but if the confirmation mode is selected, the extended display data request window for notifying the operator of the request (FIG. 5) Is displayed and the data is transferred to the request source station (CRT) via the network interface unit 8 (3
5). At the request source station, when the transfer data is received, the screen is displayed on the transfer destination CRT. If there are two modes for this display and the confirmation mode is selected,
An extended display data reception window (Fig. 6) is displayed to inform that data has arrived, prompting screen expansion. Also,
In the unconditional mode, the expanded display data reception window is not displayed and the screen is automatically expanded. Further, in the multi-screen batch display request, data to be set in the extended display is set in advance in all CRTs connected to the own station, and it is also possible to display with one touch.

Next, the operation will be described in detail by taking the overview screen, which is one function of the monitoring control device, as an example. The overview screen is a screen in which process variables such as tags are divided into groups and the state (alarm) thereof is displayed in different colors. An example of this overview screen is shown in FIG. Normally, the state of plant variables collected at the local station is displayed on this screen (Fig. 4). For example, in the supervisory control device 1a shown in the figure, the states of the plant variables A, B, C obtained from the controller 4a are displayed.

In FIG. 7, 11 is an overall control unit, 1
42 is an overview display control unit, 143 is a trend collection display control unit, and 15 is an extended display control unit. At the present time, a screen based on trend collection display is displayed. In order to display the data collected by another monitoring control device on the own monitoring control device, it is necessary to input to the monitoring control device that the extended display is to be performed by operating the extended display control menu. For this purpose, the following operations and internal operations are performed (the following etc. correspond to those in FIG. 7).

Extended Display Control Menu Operation An extended display control menu window display event is transmitted by communication from the keyboard device 132, touch panel (display interlocking input device 131a), etc. or the network 100. A display event is transmitted to the extended display control unit 15 via the overall control unit 11. The extended display control unit 15 displays the extended display control menu window. The user inputs the data acquisition destination (station number, application number or tag number) and the display destination (display CRT number, application number) from the extended display control menu. An example of the extended display control menu window is shown in FIG. The station number distinguishes the supervisory control device connected to the network 100.
D and application number can distinguish applications such as overview display and trend collection display I
Say D. Further, when inputting from the network 100, the data acquisition source may be transmitted from the network 100 at the same time. The extended display control unit 15 sends a screen development event to the overall control unit 11. (Case) When the screen currently displayed is the same application as the screen requesting screen expansion, the overall control unit 11 passes the screen expansion event to the currently displayed application (in the example of FIG. 7, the trend collection is performed). If you enter the application number shown). (Case) When the screen being displayed is an application different from the screen requesting screen expansion, the overall control unit 11 causes the entire screen which is an attribute deleted by switching between the base screen being displayed and the base screen. Notify the deletion process of the screen deletion event (in FIG. 7, when the overview screen is requested to be displayed). Also, in the case of cases, the following is performed. In case of case, it is not implemented. The resident application that has received the screen deletion event deletes all the acquired window IDs and sends a screen deletion completion report to the overall control unit 11. The non-resident application then terminates the process after disconnecting the connection with the overall control unit 11. When the base screen to be called is a resident application, the overall control unit 11 sends the screen development information determined in. In the case of the non-resident screen, the option of the display destination CRT is specified and the screen is activated. The activated application recognizes the display destination CRT number and makes a connection request to the overall control section 11. The application receiving the connection request opens the event reception waiting message queue, completes the connection processing, and waits for the event reception. The overall control unit 11 that has completed the connection process notifies the screen development event determined in. The display application that has received the screen expansion event acquires data from the database access unit 6 according to the communication protocol described in FIG. 1 when the page is specified in the own station, and generates a window and a map redraw according to the screen expansion information. Perform (request processing to window management function) Display the screen of the specified page number. In the case of another station, the other station communication protocol similarly follows.

Here, the non-resident application is a process loaded from the disk when a screen expansion request is received, and the resident application is loaded at the start of the supervisory controller and remains on the main storage device until the supervisory controller is shut down. Is an application that exists in.

Next, examples of the extended display control menu window, the extended display data receiving window, and the extended display data request window shown in the above example will be shown.

Next, the contents of the extended display control menu window (FIG. 8) will be described. In FIG. 8, * 1 is own CR
This is an area for displaying the station name of T (4 characters). * 3 is the receiving screen information area, which is displayed only when there is a receiving screen (waiting display screen), the receiving date, the receiving time, the source station name (including the CRT number), the screen type (screen no), Page number (page n
o) is displayed. * 4 is a message area for notifying the operator of operation procedures, transfer results, and the like. * 5 is the touch key area, which is used for the following purposes (however, the purpose depends on the operation screen). Use as "mode change" key (Display has two types: "Confirm" and "Unconditional") Use as "execute" key Use as "remote screen transfer window call" key Use as "receive screen expansion" key (receive screen (Displayed only when there is a display waiting screen.) Used as the "Reception end" key * 6 determines the extended display screen by entering the screen type page number to be displayed, or by entering the tag name, This is an area for selecting a screen for extended display. * 7
Is an area for selecting a plant device such as a supervisory controller that obtains data to be displayed. The designated screen transmission request is
Corresponds to area * 6 and area * 7. The contents of the extended display data reception window are shown in FIG. FIG. 10 shows an operation flowchart of the extended display data reception window. "Extended display data reception window" when certain data is transferred remotely when the reception mode is the confirmation mode
(FIG. 6) is called to display the transfer destination and transfer contents. The operator can display the transferred screen after confirming it once (screen switching). Up to four transferred screens can be displayed, so they can be displayed after erasing the windows (however, they will be displayed in the order in which they were sent, and the screen information will be deleted when reception end is set. ). When the reception mode is the unconditional mode, the extended display screen is immediately displayed when the remote data transfer is received.

The screen configuration of the extended display data reception window shown in FIG. 6 will be described. In FIG. 6, a message area * 1 displays the received screen information (reception date, transmission source station name, transmission source CRT number, screen type, page number). For example, xxx is xx while receiving data.
x indicates a data reception failure. * 2 is a "expand" touch key, which displays the received screen by touching it (this window is deleted). * 3 is a "save" touch key. By touching this key, the received screen information is written in the buffer, and the display wait state is entered, and this window is deleted.

The contents of the extended display data request window are shown in FIG. When another CRT requests data for remote control through the extended display control menu window, it is automatically displayed (however, only in the confirmation mode).

Next, each application data structure that handles data of other stations in the same manner as the data of its own station and its communication protocol will be described. Further, if the supervisory control device 1b is read as 1a in FIG. 1, it becomes a protocol for displaying the data of its own station. Figure 1
In (1), the display control unit 5 of the monitor control device 1a issues a data transmission request including the screen type and the display page to the database access unit 6. (2) Database access unit 6 of the monitoring control device 1b
Receives the data transmission request, and if OK, OK
The signal is returned to the display control unit 5. If it is not OK, an abnormal signal is returned. (3) The display control unit 5 of the monitor control device 1a waits for data reception from the database access unit 6 when the data transmission request is returned in response to OK. (4) Database access unit 6 of the monitoring control device 1b
After transmitting the data transmission OK, the data transmission is continued to the display control unit 5 at a preset cycle.
Alternatively, the data transmission is continued at the timing when a certain event is input to the database access unit 6. (5) Database access unit 6 of the monitoring controller 1b
Receives a data transmission stop signal from the display controller 5 of the monitor controller 1a and stops the data transmission. (6) The display control unit 5 of the monitor control device 1a transmits the data transmission stop signal to the database access unit 6 of its own station when the screen is developed, and the database access unit of another station (monitor control device 1b). The data transmission stop signal is transmitted to 6 when the stop request is selected in the extended display data reception window and when the screen is expanded. Further, when the confirmation mode is selected, when the data transmission OK is received, the extended display data reception window for notifying the arrival of the data is displayed to prompt the screen expansion. As a result, even if the arrival of data is delayed due to a heavy network load, the screen is suddenly expanded so that the operator will not be surprised.

Embodiment 2 (corresponding to claim 2). FIG. 11 is a block diagram showing a main configuration of a supervisory control device according to a second embodiment of the present invention. 11, components corresponding to those shown in FIG. 1 are designated by the same reference numerals, and their description will be omitted. In FIG. 11, the extended display control unit 1
An extended display database 9 is connected to 5, and the extended display data is also extracted from the extended display database 9 when the extended display is executed. The second embodiment of FIG. 11 is a case in which a plurality of CRT operations can be simultaneously operated. This multiple CRT operation will be described with reference to FIG.

In FIG. 12, 4CRT display key input is performed. The 4CRT key input is transmitted to the 4CRT expansion section of the extended display control section 15. The 4CRT development unit obtains necessary screen development information (station number, application number) from the extended display database 9. The 4CRT development unit transmits a screen development event to the overall control unit 11. (Case) When the screen currently displayed is the same application as the screen requesting screen expansion, the overall control unit 11 passes the screen expansion event to the application.
(Case) When the displayed screen is different from the screen requesting screen expansion, the overall control unit 1
1 notifies the screen erasing event to the all-window erasing process which is an attribute to be erased by switching the displayed base screen and the base screen. In case, execute the following, and in case do not execute. The resident application that has received the screen deletion event deletes all the acquired window IDs and sends a screen deletion completion report to the overall control unit 11. The non-resident application then terminates the process after disconnecting the connection with the overall control unit 11. When the base screen to be called is a resident application, the overall control unit 11 sends the screen development information determined in. In case of non-resident application, display destination C
Start by specifying the RT option. The activated application recognizes the display destination CRT number and makes a connection request to the overall control section 11. Upon receiving the connection request, the non-resident application opens the event reception waiting message queue, completes the connection processing, and waits for event reception. Overall control unit 11 that completed connection processing
Notifies the screen expansion event determined in. When the display application that receives the screen expansion event specifies a page at its own station, it generates a window and redraws the map (requests the window management function to process) according to the screen expansion information, and displays the specified page number. Display the screen. In the case of another station, the communication protocol described in the first embodiment is followed. Here, a non-resident application is a process that is loaded from the disk when a screen expansion request is received, and a resident application is loaded at the startup of the supervisory controller and remains in main memory until the supervisory controller is shut down. It is an application.

Embodiment 3 (corresponding to claim 3). In the first embodiment, since the display screen is directly specified, the station number and screen type (screen type)
There was a problem that the plant operator had to remember. That is, there is a problem that it is necessary to store which station (monitoring control device) is monitoring which plant variable. In the third embodiment,
This is done in order to solve such a problem.

FIG. 13 is a block diagram showing the main configuration of the supervisory control apparatus according to the third embodiment. 13, the components corresponding to those shown in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted. In the third embodiment, the database access unit 6 is connected to a tag page expansion database 10 indicating a set of variables indicating plant control methods and states, and when accessing the collection database 8, data in the tag page expansion database 10 is also extracted. Is configured.

Next, the extended display control menu operation according to the third embodiment will be described with reference to FIG. The extended display control menu window display event is transmitted by communication from the keyboard device 132, touch panel (display interlocking input device 131a), or the network 100. A display event is transmitted to the extended display control unit 15 via the overall control unit 11. The extended display control unit 15 displays the extended display control menu window. The user inputs a data acquisition destination (application number and page number, or application number and plant variable-tag number, etc.) and a display destination (display CRT number, application number) from the extended display control menu. Further, when inputting from the network 100, the data acquisition source may be transmitted from the network 100 at the same time. The extended display control unit 15 searches for a plant variable that can be processed by the own station and an application that can be processed by the own station. The database required for this search is created in advance by the engineering tool of the extended display control unit 15. The extended display control unit 15 sends a screen development event to the overall control unit 11. (Case) When the screen being displayed is the same application as the screen requesting screen expansion, the overall control unit 11 passes the screen expansion event to the application currently being displayed. In the example of FIG. 14, the case where a trend application number is input is shown. (Case) When the screen being displayed is an application different from the screen requesting screen expansion, the overall control unit 11 causes the entire screen which is an attribute deleted by switching between the base screen being displayed and the base screen. Notify the erase process of a screen erase event. FIG. 14 shows a case where the overview screen is requested to be displayed. Also, in the case of cases, the following is performed. In case of case, it is not implemented. The resident application that has received the screen deletion event deletes all the acquired window IDs and sends a screen deletion completion report to the overall control unit 11. The non-resident application then terminates the process after disconnecting the connection with the overall control unit 11. When the base screen to be called is a resident application, the overall control unit 11 sends the screen development information determined in. In case of non-resident application, display destination C
Start by specifying the RT option. The activated application recognizes the display destination CRT number and makes a connection request to the overall control section 11. The application receiving the connection request opens the event reception waiting message queue, completes the connection processing, and waits for the event reception. The overall control unit 11 that has completed the connection process notifies the screen development event determined in. The display application that has received the screen expansion event acquires data from the database access unit 6 according to the communication protocol described below when the page is specified in its own station, and performs window generation and map redraw according to the screen expansion information. Display the screen of the specified page number (request the window management function for processing). The same applies to other stations.

Here, the non-resident application is a process loaded from the disk when a screen expansion request is received, and the resident application is loaded on the main storage device until it is loaded when the monitor control device is started up. Is an application that exists in.

FIG. 13 shows the communication protocol in this operation.
It will be described based on. When the supervisory control device 1b is read below as the supervisory control device 1a, a protocol for displaying the data of its own station is established. (1) The display control unit 5 of the monitor control device 1a issues a data transmission request including the screen type and the tag number to be displayed to the database access unit 6. (2) Database access unit 6 of the monitoring control device 1b
When the data transmission request is received, the tag page expansion database 10 determines the display page, and if the display page is OK, returns an OK signal to the display control unit 5. If it is not OK, a signal indicating that it does not exist is returned. (3) The display control unit 5 of the monitor control device 1a waits for data reception from the database access unit 6 when the data transmission request is returned in response to OK. (4) Database access unit 6 of the monitoring control device 1b
After transmitting the data transmission OK, the monitor control device 1a waits for a transmission OK signal. When the transmission OK signal is received, the data transmission is continued to the display controller 5 at a preset cycle. Alternatively, the data transmission is continued at the timing when a certain event is input to the database access unit 6. (5) Database access unit 6 of the monitoring controller 1b
Receives a data transmission stop signal from the display controller 5 of the monitor controller 1a and stops the data transmission. (6) The display control unit 5 of the monitor control device 1a transmits the data transmission stop signal to the database access unit 6 of its own station when the screen is developed, and the database access unit of another station (monitor control device 1b). The data transmission stop signal is transmitted to 6 at the time of screen development and when a stop request is selected in the extended display data reception window.

Embodiment 4 (corresponding to claim 4). FIG. 15 is a block diagram showing the main configuration of the supervisory control device according to the fourth embodiment. 15, components corresponding to those shown in FIG. 11 are designated by the same reference numerals, and their description will be omitted. In the fourth embodiment, the tag page expansion database 10 is connected to the database access unit 6, and when the collection database 8 is accessed, the data of the tag page expansion database 10 is also extracted.

Next, a plurality of CRT operations in the fourth embodiment will be described with reference to FIG. 4CRT display Key input. The 4CRT key input is transmitted to the 4CRT expansion section of the extended display control section 15. The 4CRT development unit obtains necessary screen development information (application number and page number, or application number and plant variable) from the data. After that, the extended display control unit 15 searches for a plant variable that can be processed by the own station and an application that can be processed by the own station. The database required for this search is created in advance by the engineering tool of the extended display control unit 15. The 4CRT development unit transmits a screen development event to the overall control unit 11. (Case) When the screen currently displayed is the same application as the screen requesting screen expansion, the overall control unit 11 passes the screen expansion event to the application.
(Case) When the displayed screen is different from the screen requesting screen expansion, the overall control unit 1
1 notifies the screen erasing event to the all-window erasing process which is an attribute to be erased by switching the displayed base screen and the base screen. In case, execute the following, and in case do not execute. The resident application that has received the screen deletion event deletes all the acquired window IDs and sends a screen deletion completion report to the overall control unit 11. The non-resident application then terminates the process after disconnecting the connection with the overall control unit 11. When the base screen to be called is a resident application, the overall control unit 11 sends the screen development information determined in. In case of non-resident application, display destination C
Start by specifying the RT option. The activated application recognizes the display destination CRT number and makes a connection request to the overall control section 11. Upon receiving the connection request, the non-resident application opens the event reception waiting message queue, completes the connection processing, and waits for event reception. Overall control unit 11 that completed connection processing
Notifies the screen expansion event determined in. When the display application that receives the screen expansion event specifies a page at its own station, it generates a window and redraws the map (requests the window management function to process) according to the screen expansion information, and displays the specified page number. Display the screen. In the case of another station, it follows the communication protocol described in the third embodiment.

Example 5 (corresponding to claim 6). In the third embodiment, the extended display control unit independent of each application receives the extended display, but there are two actions to call the extended display control window.
In order to solve this problem, the configuration and processing of the fifth embodiment are carried out.

FIG. 16 is a block diagram showing the main configuration of the supervisory control apparatus according to the fifth embodiment. 16, components corresponding to those shown in FIG. 1 are designated by the same reference numerals, and their description will be omitted. In the fifth embodiment, the tag page expansion database 10 is connected to the database access unit 6, and when the collection database 8 is accessed, the data of the tag page expansion database 10 is also extracted.

Next, the operation of the fifth embodiment will be described.
In FIG. 16, by connecting the extended display control unit 15 to the display control unit 5, it becomes possible to receive the plant variable data from the display control unit 5 without displaying a unique interface (window). Further, in the communication protocol as well, in order to expand the screen (because the database access unit 6 continuously transmits data) and cancel the screen, a processing stop request is issued to the database access unit 6 to send the data. Need to stop.
In order to eliminate this processing, a regular collection request may be sent from the own station.

In FIG. 16, the protocol is as follows: (1) A data transmission request including a screen type and a display request tag is issued from the display control unit 5 of the monitor control device 1a to the database access unit 6 and the system waits for data reception. . (2) Database access unit 6 of the monitoring control device 1b
When the data transmission request is received, the display page is calculated from the screen type and the tag number to be displayed, and if OK, the OK data is returned to the display control unit 5. If it is not OK, a no data signal is returned. (3) Database access unit 6 of the monitoring controller 1b
After transmitting the data transmission OK, the monitor control device 1a waits for a transmission OK signal. When the transmission OK signal is received, the data transmission request reception waits. (4) Also, by cyclic activation of the cyclic unit 7, the monitoring control device 1a issues a data transmission request to the database access unit 6 of the monitoring control device 1b and receives the data. (5) The database access unit 6 stops the data transmission when the display control unit 5 does not receive the data transmission request signal. (6) The display control unit 5 of the monitor control device 1a stops the data transmission signal to the database access unit 6 of its own station when the screen is developed, and the database access unit 6 of another station (monitor control device 1b). The data transmission signal is stopped when the screen is developed.

Embodiment 6 (corresponding to claim 5). In the fifth embodiment, it is necessary to broadcast the data transmission request to all the monitoring control devices. Example 6
Then, by connecting the station page and the tag page expansion database for extracting pages to the extended display control unit, it is possible to broadcast the data and prevent the drawback of increasing the network congestion.

FIG. 17 is a block diagram showing the main configuration of the supervisory control device according to the sixth embodiment. 17, components corresponding to those shown in FIG. 1 are designated by the same reference numerals, and their description will be omitted. In the sixth embodiment, instead of connecting the extended display control unit 15 to the overall control unit 11,
The extended display control unit 15 is configured to connect to the display control unit 5 and access the tag page expansion database 10 to find the corresponding page. A cyclic unit 7 is connected to the display control unit 5.

Next, the operation of the sixth embodiment will be described.
In FIG. 17, the extended display control unit 1 of the monitoring controller 1a
When 5 receives the application number and the plant variable or the application number and the page number from the display control unit 5, the data is stored in the tag page expansion database 1
The screen type, display page, and station number are acquired by comparing with the data of 0. After that, the required data is obtained by the following protocol. (1) The display control unit 5 of the monitor control device 1a issues a data transmission request including the screen type and display page to the database access unit 6, and waits for data reception. (2) Database access unit 6 of the monitoring control device 1b
Receives the data transmission request, and if OK, OK
The signal and display data are returned to the display control unit 5. If it is not OK, an abnormal signal is returned. (3) Also, by cyclic activation, a data transmission request is transmitted to the database access unit 7, and (1) to
The operation of (2) is repeated. (4) The database access unit 6 stops the data transmission when the display control unit 5 does not receive the data transmission request signal. (5) The display control unit 5 of the monitor control device 1a stops the data transmission signal to the database access unit 6 of its own station when the screen is developed, and the database access unit 6 of another station (monitor control device 1b). The data transmission signal is stopped when the screen is developed.

Example 7 (corresponding to claims 1 to 6). In addition, in the said Examples 1-6, although it applied about the case where it applies to the extended display control part screen of an instrumentation function, the same effect is produced also in the trend function which displays the mode of change of a plant variable. In this case, it is not necessary to transmit the variable cyclically.

[0050]

As described above, according to the first aspect of the present invention, a network interface unit that receives data from a plant controller or the like via a network and transmits operation command data to the plant controller or the like via the network. , A database access unit that retrieves the data required to perform wide-area monitoring of the plant from a collection database that has been collected in advance, a display control unit that displays the required data on a display device, and the collection and access of the database cyclically It includes a cyclic unit for execution, an extended display control unit for receiving extended data from a collection database and displaying extended display data for wide area monitoring on a display device, and an overall control unit for integrally controlling the above-mentioned components. Since it is configured, it is possible to display extended display data as well. Can, thereby it is possible to see the data that is monitored by its own station and other stations, thus easily monitoring the plant wide, effect that can be achieved with an inexpensive device is obtained.

According to the second invention, in the configuration of the first invention, when the extended display control section is connected to the extended display database and the extended display is executed, the extended display data is also taken out from the extended display database. Therefore, the same effect as the first aspect of the invention can be obtained, and the extended display can be executed with one touch, and the simultaneous operation of a plurality of display devices can also be obtained.

According to the third aspect of the present invention, in the configuration of the first aspect, when the database access unit is connected to the tag page expansion database indicating a set of variables indicating the plant control method and state, the collection database is accessed. ,
Since the data of the tag page expansion database is also taken out, the same effect as that of the first invention can be obtained, and the plant operator does not need to store the variable indicating the control method and the state of the plant. The effect of improving operability can also be obtained.

According to the fourth invention, in the configuration of the second invention, the tag page expansion database is connected to the database access unit, and when the collection database is accessed, the data of the tag page expansion database is also taken out. Therefore, the same effect as the first and second inventions can be obtained.

According to the fifth invention, in the structure of the first invention, instead of connecting the extended display control unit to the overall control unit, the extended display control unit is connected to the extended display control unit, and the extended display control unit is connected to the tag page expansion database. Is configured to access the relevant page, and the cyclic unit is connected to the display control unit, so that the same effect as that of the first invention can be obtained, and the relevant page is easily indexed and extended display is performed. The effect that the process of calling the control window can be efficiently performed is obtained.

According to the sixth invention, in the configuration of the fifth invention, the tag page expansion database is connected to the database access unit, and when the collection database is accessed, the data of the tag page expansion database is also extracted. Therefore, the same effects as those of the first and fifth inventions can be obtained, and it is not necessary to request all the monitoring and control devices to transmit data, which can prevent an increase in network congestion. can get.

[Brief description of drawings]

FIG. 1 is a block diagram showing a main configuration of a supervisory control device according to a first embodiment of the present invention.

FIG. 2 is a block diagram for explaining a screen display procedure when data is present in the own station in the first embodiment.

FIG. 3 is a block diagram for explaining a screen display procedure when data is stored in another station in the first embodiment.

FIG. 4 is a diagram showing a screen configuration example of an extended display control menu window in the first embodiment.

FIG. 5 is a diagram showing a screen configuration example of an extended display data request window in the first embodiment.

FIG. 6 is a diagram showing a screen configuration example of an extended display data reception window in the first embodiment.

FIG. 7 is a block diagram for explaining the operation of the extended display control unit in the first embodiment.

FIG. 8 is a diagram showing the contents of an extended display control menu window in the first embodiment.

FIG. 9 is a flowchart showing the operation of the menu window of the extended display control unit in the first embodiment.

FIG. 10 is a flowchart showing the operation of the extended display data reception window in the first embodiment.

FIG. 11 is a block diagram showing a main configuration of a supervisory control device according to a second embodiment of the present invention.

FIG. 12 is a block diagram for explaining an operation at the time of displaying a plurality of CRTs in the second or fourth embodiment.

FIG. 13 is a block diagram showing a main configuration of a supervisory control device according to a third embodiment of the present invention.

FIG. 14 is a block diagram for explaining an operation when an application number and a tag number or an application number and a page number are input in the third embodiment.

FIG. 15 is a block diagram showing a main configuration of a supervisory control device according to a fourth embodiment of the present invention.

FIG. 16 is a block diagram showing a main configuration of a supervisory control device according to a fifth embodiment of the present invention.

FIG. 17 is a block diagram showing a main configuration of a supervisory control device according to a sixth embodiment of the present invention.

FIG. 18 is a block diagram showing a configuration of a conventional monitoring control device.

FIG. 19 is a block diagram for explaining a monitoring range of a conventional device.

FIG. 20 is a diagram for explaining tags in the example and the conventional example.

[Explanation of symbols]

 1, 1a, 1b, 1c Monitoring and control device 2 Plant simulator 3 Plant management computer 4, 4a, 4b, 4c Plant controller 5 Display control unit 6 Database access unit 7 Cyclic unit 8 Collection database 9 Extended display database 10 Tag page expansion database 11 overall control unit 12 network interface unit 13 input / output control unit 14 application unit 15 extended display control unit 131 display device 131a display interlocking input device 132 keyboard device 141 operation history collection display control unit 141a operation history data 142 overview display control unit 142a Overview data 143 Trend collection display controller 143a Trend data 144 Controller operation display controller 144a Controller data 100 Network

Claims (6)

[Claims] 1. In a supervisory control device for supervising and controlling a plant controller or the like for controlling a plant via a network, data is received from the plant controller or the like via the network, or operation command data is sent to the plant controller or the like. A network interface unit for transmitting via a network, a database access unit for retrieving data necessary for executing wide area monitoring of the plant from a collection database, and a display control unit for displaying the necessary data on a display device. A cyclic unit for cyclically collecting and accessing a database; an extended display control unit for displaying extended display data for receiving data from the collection database and performing wide area monitoring on a display device; Integrated control A supervisory control device comprising: 2. The extended display database is connected to the extended display control unit, and when the extended display is executed, the extended display data is also extracted from the extended display database. Monitoring and control equipment. 3. The database access unit is connected to a tag page expansion database showing a set of variables indicating plant control methods and states, and when the collection database is accessed, the data of the tag page expansion database is also extracted. The monitoring control device according to claim 1, wherein the monitoring control device is configured. 4. The database access unit is connected to the tag page expansion database, and when the collection database is accessed, the data of the tag page expansion database is also taken out. The described monitor control device. 5. The extended display control unit is connected to the display control unit instead of being connected to the overall control unit, and the extended display control unit accesses a tag page expansion database to determine a corresponding page. The monitor control device according to claim 1, wherein the display control unit is connected to the cyclic unit. 6. The tag page expansion database is connected to the database access unit, and when the collection database is accessed, the data of the tag page expansion database is also taken out. The described monitor control device.