JP2003091310A - Supervisory control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely carry out updating of a supervisory program and a control program without lowering the rate of operation of a plant by performing the operation check of a program to be updated while continuing the operation of the plant as a supervisory control object. SOLUTION: While a central supervisory control device 2, a real controller part 7 of a control device 5 and a virtual process draw-up device 4 are linked with each other, the operation of the respective devices constituting a plant is supervised and controlled. When a test object program is installed and a test designation is input, while the central supervisory control device 2, a virtual controller part 8 of the control device 5 and the virtual process draw-up device 4 are linked with each other, the test object program is used to virtually supervise and control the plant.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention cooperates with a central supervisory control device or the like disposed in a central supervisory room or the like and a site side supervisory control device or the like disposed in a plant or the like subject to supervisory control. The present invention relates to a distributed supervisory control system that supervises and controls a plant or the like.

[0002]

2. Description of the Related Art A distributed monitoring control system shown in FIG. 12 is conventionally known as one of the monitoring control systems for monitoring and controlling each facility constituting a plant.

The distributed supervisory control system 10 shown in this figure
1 is arranged on the side of each facility that constitutes the plant, and is laid so as to connect one or more control devices 104 that monitor and control each device that configures each facility, and each facility to a central monitoring room. And a central monitoring control device 102 which is disposed in a central monitoring room or the like and monitors and controls the control device 104 via the control LAN 103 to monitor and control the operation of each facility.
By the central monitoring control device 102, the control device 1
04 is monitored and controlled to cause the control device 104 to monitor and control the operation of each device constituting each facility.

[0004]

By the way, in such a distributed supervisory control system 101, a supervisory program, a control program installed in the central supervisory control device 102, a supervisory program installed in the control device 104, a control program Each application program, such as programs, is upgraded from time to time to improve monitoring and control capabilities.

At this time, the central monitoring control device 102,
Since the monitoring program and the control program newly installed in the control device 104 often have a bug or the like, and the monitoring ability and the control ability cannot be improved, the central monitoring control device 102 and the control device 104 are often changed. Before installing the upgraded monitoring program and control program to monitor and control the plant, the central monitoring control device 10
2. After stopping the monitoring and control of the plant by the control device 104, the upgraded monitoring program and control program are installed in the central monitoring control device 102 and the control device 104, and the upgraded monitoring program and control program are installed. It is necessary to confirm whether or not etc. work normally.

For this reason, every time the operation of the upgraded monitoring program, control program, etc. is confirmed,
You have to interrupt the plant operation,
There was a problem that the operating rate of the plant would decrease.

Further, the central supervisory control device 102 or the control device 104 is separated from the control LAN 103, and the upgraded monitoring programs, control programs, etc. are installed, and the operations of these monitoring programs, control programs, etc. are checked. Therefore, after installing the upgraded monitoring program, control program, etc. in the central monitoring control device 102 or the control device 104, the central monitoring control device 102 or the control device 1 is installed.
When 04 is connected to the control LAN 103, there is a problem that it is difficult to know in advance how the entire distributed monitoring control system 101 operates and how it affects the plant operation. It was

In view of the above circumstances, the present invention allows the operation check of the monitoring program, control program, etc. to be updated while continuing the operation of the plant to be monitored and controlled. Monitoring program, without reducing plant utilization
The main purpose of the present invention is to provide a distributed supervisory control system that can safely update control programs and the like.

[0009]

In order to achieve the above object, the present invention provides, in claim 1, a central supervisory control device,
In a supervisory control system that cooperates with the on-site supervisory controller to monitor and control the plant or each facility that is the subject of control, in the central supervisory controller,
A simulation function realizing means for simulating execution of the contents of the test target program is provided in the site side supervisory controller, and the central side supervisory controller, the actual supervisory operation of the site supervisory controller, and the actual control operation are performed in parallel. Then, the simulation function is operated to check the operation of the test target program.

According to a second aspect of the present invention, in the supervisory control system according to the first aspect, the simulation function realizing means is arranged in the central supervisory control device and exchanges virtual data with the site supervisory control device. However, the central virtual monitoring control unit that displays the virtual monitoring control screen and the virtual monitoring control unit on the site side are arranged in the central monitoring control device while exchanging virtual data with the central monitoring control device. It is characterized in that it is provided with a site side virtual supervisory control unit for simulatingly monitoring and controlling the existing plant or each facility.

According to a third aspect of the present invention, in the supervisory control system according to any of the first and second aspects, a process model of the plant or each facility to be monitored and controlled is constructed, and the simulation function realizing means is provided. Is characterized by performing an operation check of the test target program using the process model.

According to a fourth aspect of the present invention, in the supervisory control system according to any one of the first and second aspects, the simulation function realizing means stores the actual process data of the plant or each facility to be monitored and controlled. It is characterized by using it to check the operation of the test target program.

In the above structure, according to the first aspect of the present invention, the operation of the monitoring program, the control program, etc. to be updated is checked while continuing the operation of the plant to be monitored and controlled. Update the monitoring program, control program, etc. safely without reducing the operating rate of the.

According to a second aspect of the present invention, the cost of the entire system is kept low, and a simulation function is provided so that the operation of the plant to be monitored and controlled is continued, while the monitoring program and control to be updated are controlled. By checking the operation of programs, etc., the update of monitoring programs, control programs, etc. can be safely executed without reducing the operating rate of the plant.

According to a third aspect of the present invention, the process model of the plant is used while the operation of the plant to be monitored and controlled is continued, and the operation check of the monitoring program and control program to be updated is performed. Thus, the operation of the update target program or the like with respect to the past process data is confirmed and the program update or the like is safely executed without lowering the operation rate of the plant.

According to the present invention, while continuing the operation of the plant to be monitored and controlled, the current process data is used to check the operation of the monitoring program, control program, etc. to be updated. Thus, the operation of the program to be updated for the current process data is confirmed and the program is safely updated without lowering the operation rate of the plant.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS << Structure Description >> FIG. 1 is a block diagram showing an embodiment of a distributed supervisory control system to which the present invention is applied.

Distributed monitoring and control system 1 shown in this figure
Is installed on the side of each facility that constitutes the plant, and is laid so as to connect each facility to the central monitoring room and one or more control devices 5 that monitor and control each device that configures each facility. The control LAN 3 includes a control LAN 3 and a central monitoring control device 2 that is arranged in a central monitoring room and that monitors and controls the control device 5 via the control LAN 3 to monitor and control the operation of each facility. Further, a process model of the plant is constructed based on the actual control data, the actual state detection data (process data), the virtual control data, etc. sent out on the control LAN 3, and the plant is constructed using the process model and the virtual control data. The virtual process creation device 4 that generates virtual state detection data when virtually controlled or actual state detection data at the present time is provided.

The control unit 5 exchanges real tag data, real control data, real state detection data, etc. with the central supervisory control unit 2, virtual process creation unit 4, etc., via the control LAN 3, and the PI / O card. An actual controller unit 7 that monitors and controls each facility that is the target of monitoring and control via 6 is provided. Further, while being separated from the actual controller unit 7 and exchanging virtual tag data, virtual control data, virtual state detection data and the like with the central monitoring control device 2 and the virtual process creation device 4 via the control LAN 3, the monitoring control target Virtually monitor each equipment that has become,
A virtual controller unit 8 for controlling is provided.

The real controller unit 7 stores the real tag data, the real control data, the real state detection data, etc., and the central supervisory control device 2, the virtual process creation device 4, the real tag data, and the real control data via the control LAN 3. A scan area 9 for exchanging data, actual state detection data, etc. is provided. Also, based on the input actual control data and the like, a control signal is supplied to each device on each equipment side via the PI / O card 6, and while controlling these, a measurement signal output from each sensor is taken in. Then, the batch input / output area 10 for generating the actual state detection data and storing it in the scan area 9
Equipped with. Further, the actual tag data is fetched from the scan area 9 and stored therein, the actual state detection data is fetched from the collective input / output area 10, the inputted actual control data is supplied to the collective input / output area 10, and the scanning is performed. The TAG file 11 stored in the area 9 is provided. Further, the actual tag data and the actual state detection data are fetched from the TAG file 11, the actual control data necessary for controlling each device is generated based on the actual tag data and the actual state detection data, and this is generated. The control task 12 is provided to

The virtual controller section 8 stores virtual tag data, virtual control data, virtual state detection data, etc., and, through the control LAN 3, the central monitoring control device 2,
The virtual process creation apparatus 4 and a simulation scan area 13 for exchanging virtual tag data, virtual control data, virtual state detection data, and the like are provided. In addition, the virtual input / output area 14 is provided that takes in virtual state detection data from the simulation scan area 13 while virtually generating control signals for controlling each device of each facility based on the input virtual control data. Furthermore, while fetching necessary data, timing signals, etc. from the TAG file 11 of the real controller unit 7, virtual tag data is fetched from the simulation scan area 13 and stored, and virtual state detection data is fetched from the virtual input / output area 14. A simulation TAG file 15 that stores the virtual control data that is captured and input to the virtual input / output area 14 and is stored in the simulation scan area 13 is provided. Furthermore, while fetching necessary data, timing signals, etc. from the control task 12 of the actual controller unit 7, virtual tag data and virtual state detection data are fetched from the simulation TAG file 15, and based on these virtual tag data and virtual state detection data, The simulation control task 16 is provided which generates virtual control data necessary for virtually controlling each device and supplies the virtual control data to the simulation TAG file 15.

The central supervisory control device 2 stores the actual tag data, the actual control data, the actual state detection data, etc., and the virtual process creation device 4, the control device 5 and the actual tag data, the actual control via the control LAN 3. A scan area 17 for exchanging data, actual state detection data, etc. is provided. Further, while storing virtual tag data, virtual control data, virtual state detection data, etc., via the control LAN 3, the virtual process creation device 4, the control device 5 and virtual tag data, virtual control data, virtual state detection data, etc. A simulation scan area 18 for replacement is provided. Further, when the actual controller unit 7 provided in the control device 5 is monitored and controlled, the scan area 17 is selected, and when the virtual controller unit 8 provided in the control device 5 is monitored and controlled, the simulation scan is performed. A simulation mode selection unit 19 for selecting the area 18 is provided. Furthermore, via the simulation mode selection unit 19, either the scan area 17 or the simulation scan area 18 is connected, and an actual monitoring screen, an actual control screen, which are necessary for monitoring and controlling the actual controller unit 7, Alternatively, a display task 20 for displaying either one of a virtual monitor screen and a virtual control screen necessary for monitoring and controlling the virtual controller unit 8 is provided.

The virtual process creation device 4 stores the actual control data, the actual state detection data, etc., while controlling the control LAN.
Central monitoring control device 2, control device 5
And a scan area 21 for exchanging actual control data and actual state detection data. In addition, while storing virtual control data, virtual state detection data, etc., a simulation scan area 22 for exchanging virtual control data, virtual state detection data, etc. with the central supervisory control device 2, control device 5 via the control LAN 3 is provided. Prepare further,
The control device 5 receives the actual control data and the actual state detection data from the scan area 21 and performs the learning process.
A virtual process creation learning unit 23 that creates an operation model (process model) of a plant monitored and controlled by the real controller unit 7 of FIG. Furthermore, while taking in virtual control data from the simulation scan area 22, the process model created by the virtual process creation learning unit 23 is used to simulate the operation of each device constituting the plant, and the virtual control data corresponding to the virtual control data is simulated. A virtual process data file 24 for generating state detection data is provided. Further, the virtual process data selection unit 25 that selects either the virtual state detection data output from the virtual process data file 24 or the actual state detection data output from the scan area 21 and stores it in the simulation scan area 22. Equipped with.

<< Description of Operation >> Next, the operation of the supervisory control system 1 will be described with reference to the block diagram shown in FIG. 1 and the schematic diagrams shown in FIGS.

<When the Program Test is Not Performed> First, the central monitoring control device 2 and the control device 5 do not have a program to be tested (test target program) such as an updated monitoring program or control program. At this time, or when the test target program is installed, but the test instruction is not input, the scan area 17 is selected by the simulation mode selector 19 provided in the central monitoring control device 2, and the actual monitoring screen A control screen or the like is presented to the operator.

After that, as shown in FIG. 2, when the operator or the like operates the actual monitoring screen, the actual control screen, etc. to input new set values, tag contents, etc., the central monitoring control device 2 The actual tag data and the like corresponding to these set values and tag contents are generated, and this is the path of the scan area 17 of the central supervisory control device 2 → the control LAN 3 → the actual controller section 7 of the control device 5 and the actual control device 5 It is supplied to the controller unit 7 and stored in the scan area 9.

Then, the actual tag data read from the scan area 9 by the control task 12, the TAG file 11 and the collective input / output area 10 provided in the actual controller section 7 of the control device 5, monitoring and control up to the previous time. The actual control data and the actual control signal are generated in accordance with the actual state detection data obtained by the operation, the actual control data is stored in the scan area 9, and the actual control signal is set to PI /
It is supplied to each device to be monitored and controlled through the O card 6 to control each device.

Further, in parallel with this operation, as shown in FIG. 3, the collective input / output area 10 provided in the actual controller section 7 of the control device 5 attaches to each device to be monitored and controlled. Each measurement signal is taken in from each sensor and the actual state detection data is generated.
The actual state detection data stored in the control task 12, the TAG file 11, and the scan area 9 are updated.

The actual control data and the actual state detection data stored in the scan area 9 are routed from the scan area 9 of the control device 5 to the control LAN 3 to the scan area 21 of the virtual process creation device 4 in the virtual process creation device. 4, the virtual process creation learning unit 23 provided in the virtual process creation device 4 learns the actual control data and the actual state detection data that are supplied and stored in the scan area 21. In the virtual process data file 24 which has been processed, the operation model (process model) of the plant monitored and controlled by the real controller unit 7 of the control device 5 is constructed.

In parallel with each of these operations, as shown in FIG. 4, the actual control data and the actual state detection data stored in the scan area 9 of the control device 5 are controlled by the scan area 9 → control of the control device 5. It is supplied to the scan area 17 of the central supervisory control device 2 through the route of the LAN 3 → the scan area 17 of the central supervisory control device 2, and the actual monitoring content, the actual control content, etc. are displayed on the actual monitoring screen, the actual control screen, etc. The operator is notified.

<When conducting a program test using the process model> Further, the central monitoring control device 2, the control device 5, etc., have a program to be tested (test target, such as an upgraded monitoring program or control program). Program) is installed, a test instruction is input, and the virtual process data selection unit 25 of the virtual process creation device 4 selects the virtual process data file 24. In parallel with the actual monitoring and control operation by the real controller unit 7 and the process model building operation by the virtual process creation device 4, the following simulation operation is performed.

First, the simulation mode selector 19 of the central supervisory control device 2 is switched, the simulation scan area 18 provided in the central supervisory control device 2 and the display task 20 are connected, and a virtual supervisory screen,
A virtual control screen or the like is presented to the operator.

After that, as shown in FIG. 5, when the operator or the like operates the virtual monitoring screen, the virtual control screen, etc. to input new virtual setting values, virtual tag contents, etc., the central monitoring control device. 2, virtual tag data corresponding to these virtual setting values, virtual tag contents, etc. are generated, and this is the path of the simulation scan area 18 of the central supervisory control device 2 → the control LAN 3 → the virtual controller unit 8 of the control device 5, It is supplied to the virtual controller section 8 of the control device 5 and stored in the simulation scan area 13.

Then, the virtual tag data is read from the simulation scan area 13 by the simulation control task 16, the simulation TAG file 15, and the virtual input / output area 14 of the virtual controller section 8, and the virtual tag data is stored. After the virtual control data and the virtual control signal according to the virtual state detection data and the like are generated, the virtual control data is stored in the simulation scan area 13, and the virtual control signal is used to become a monitoring control target. Each device is controlled virtually.

In parallel with this operation, as shown in FIG. 6, the virtual control data stored in the simulation scan area 13 of the virtual controller section 8 is stored in the simulation scan area 13 of the virtual controller section 8 →
A virtual process data file provided in the virtual process creation device 4 while being supplied and stored in the simulation scan area 22 of the virtual process creation device 4 via the control LAN 3 → simulation scan area 22 of the virtual process creation device 4 By 24,
The process model created by the virtual process creation learning unit 23 and the virtual control data stored in the simulation scan area 22 are used to simulate the operation of each facility constituting the plant, and the virtual state corresponding to the virtual control data is simulated. Detection data is generated.

Then, as shown in FIG. 7, the virtual process data selector 25 fetches the virtual state detection data output from the virtual process data file 24, stores the virtual state detection data in the simulation scan area 22, and at the same time, the simulation. The virtual state detection data stored in the scan area 22 is the simulation scan area 22 of the virtual process creation device 4 → control LA
N3 is supplied to the virtual controller unit 8 of the control device 5 via the path of the virtual controller unit 8 of the control device 5 and is stored in the simulation scan area 13 and is also fetched by the virtual input / output area 14 for the simulation control task. 16. The virtual state detection data stored in the simulation TAG file 15 is updated.

In parallel with each of these operations, as shown in FIG. 8, the virtual control data and virtual state detection data stored in the simulation scan area 13 of the virtual controller section 8 are stored in the simulation scan area of the control device 5. 13 → control LAN 3 → simulation scan area 18 of the central supervisory control device 2 is supplied to the simulation scan area 18 of the central supervisory control device 2, and the test target program and process model are displayed on the virtual supervisory screen, virtual control screen, etc. The operator is notified of the virtual monitoring contents and virtual control contents using the.

<When a program test is performed using the process data at the present time> Further, the central monitoring control device 2, the control device 5 and the like have a program to be tested, such as an upgraded monitoring program and control program ( When the scan area 21 is selected by the virtual process data selection unit 25 of the virtual process creation device 4 while the test target program) is installed, the test instruction is input, and the central monitoring control device 2 and the control device 5 described above are selected. In parallel with the actual monitoring and control operation by the real controller unit 7 and the process model building operation by the virtual process creation device 4, the following simulation operation is performed.

First, the simulation mode selector 19 of the central supervisory control device 2 is switched to connect the simulation scan area 18 provided in the central supervisory control device 2 and the display task 20. A control screen or the like is presented to the operator.

Thereafter, as shown in FIG. 9, when the operator or the like operates the virtual monitoring screen, the virtual control screen, etc. to input new virtual set values, virtual tag contents, etc., the central monitoring control device. 2, virtual tag data corresponding to these virtual setting values, virtual tag contents, etc. are generated, and this is the path of the simulation scan area 18 of the central supervisory control device 2 → the control LAN 3 → the virtual controller unit 8 of the control device 5, It is supplied to the virtual controller section 8 of the control device 5 and stored in the simulation scan area 13.

In parallel with this operation, as shown in FIG. 10, the virtual process data selecting section 25 of the virtual process creating apparatus 4 fetches the actual state detection data output from the scan area 21, and the virtual state data is virtualized. The state detection data is stored in the simulation scan area 22 and the virtual state detection data stored in the simulation scan area 22 is used as the state detection data.
→ Control LAN 3 → Virtual controller section 8 of the control device 5 is supplied to the virtual controller section 8 of the control device 5 and stored in the simulation scan area 13, and the simulation scan area 13 is stored by the virtual input / output area 14. The virtual state detection data stored in is loaded into the simulation control task 16 and the simulation TAG file 1
The virtual state detection data stored in 5 is updated.

Then, the virtual tag data is read from the simulation scan area 13 by the simulation control task 16, the simulation TAG file 15, and the virtual input / output area 14 of the virtual controller unit 8, and the virtual tag data is stored. After the virtual control data and the virtual control signal according to the virtual state detection data and the like are generated, the virtual control data is stored in the simulation scan area 13, and the virtual control signal is used to become a monitoring control target. Each device is controlled virtually.

In parallel with each of these operations, as shown in FIG. 11, virtual control data stored in the simulation scan area 13 of the virtual controller section 8,
The virtual state detection data is supplied to the simulation scan area 13 of the central controller 2 through the simulation scan area 13 of the virtual controller section → control LAN 3 → simulation scan area 18 of the central controller 2 to provide a virtual monitor screen. , The operator is notified of the program to be tested, the virtual monitoring contents using the process model, the virtual control contents, etc. on the virtual control screen.

<< Effect of Embodiment >> As described above, in this embodiment, the central supervisory control device 2 and the control device 5 are used.
When the actual controller unit 7 and the virtual process creation device 4 are linked with each other to monitor and control the operation of each device constituting each equipment, the test target program is installed, and the test instruction is input. While coordinating the central supervisory control device 2, the virtual controller unit 8 of the control device 5, and the virtual process creation device 4,
The test target program is operated to simulate a state in which the plant is virtually monitored and controlled.

Therefore, it is possible to check the operation of the monitoring program, control program, etc. to be updated while continuing the operation of the plant to be monitored and controlled. It is possible to safely execute the updating of the monitoring program, the control program, etc. without lowering it.

Further, in this embodiment, the basic program installed in the central supervisory control device 2, the basic program installed in the control device 5, etc. are changed so that the simulation scan area 18, Simulation mode selection unit 19
And the virtual controller unit 8 in the control device 5 to generate the central monitoring control device 2,
The test program installed in the control device 5 is tested.

Therefore, it is possible to minimize the increase in the amount of hardware required to test the program to be tested and to keep the cost of the entire system low.

In this embodiment, the central monitoring is performed when the test target program is not installed in the central monitoring control device 2, the control device 5, or the like, or when the test instruction is not input even if it is installed. The control device 2 and the control device 5 are made to cooperate with each other to monitor and control the operation of each device constituting each equipment, while the virtual process creation device 4 builds a process model of the plant, and also a central monitoring control device. 2. When the test target program is installed in the control device 5, the test instruction is input, and the virtual process data file 24 is selected by the virtual process data selection unit 25 of the virtual process creation device 4, Central supervisory control device 2, control device 5, virtual monitor By linking the processes creating apparatus 4, it monitors the operation of each apparatus in each facility, while controlled,
The process model and the program to be tested are used to simulate the state in which the plant is virtually monitored and controlled.

Therefore, while the plant to be monitored and controlled is continuously operated, the process model of the plant can be used to check the operation of the monitoring program, control program, etc. to be updated. This makes it possible to confirm the operation of the update target program for the past process data and safely execute the program update, etc., without lowering the operating rate of the plant.

Further, in this embodiment, the test target program is installed in the central supervisory control device 2, the control device 5 and the like, the test instruction is input, and the virtual process data selecting section 25 of the virtual process creating device 4 is also used. When the scan area 21 is selected by, the central monitoring control device 2 and the control device 5
And the virtual process creation device 4 in cooperation with each other to monitor and control the operation of each device that configures each equipment, while using the current process data and test target program to virtually monitor and control the plant. I try to simulate the situation.

Therefore, while continuing the operation of the plant to be monitored and controlled, the current process data can be used to check the operation of the monitoring program or control program to be updated. This makes it possible to confirm the operation of the update target program or the like with respect to the current process data and safely execute the program update or the like without lowering the operation rate of the plant.

<< Other Embodiments >> In the above-described embodiment,
The virtual process creation device 4 is independent of the central supervisory control device 2 and the control device 5, and these central supervisory control device 2, control device 5 and virtual process creation device 4 are connected via the control LAN 3. The virtual process creation device 4 may be detachably connected to the control device 5 to perform the test operation of the above-described test target program.

When the control device 5 has a hardware allowance and a software allowance, the virtual process creation device 4 is incorporated in the control device 5 to perform the test operation of the above-described test target program. You may allow it.

By doing so, when the test target program is tested, the traffic volume of the control LAN 3 is prevented from increasing, and the central supervisory control device 2,
It is possible to prevent the monitoring and control capabilities of the plant by the control device 5 from decreasing.

Further, in the above-described embodiment, the basic program installed in the control device 5 is changed so that the simulation scan area 13, the virtual input / output area 14, the simulation TAG file 15, the simulation control task are provided in the control device 5. Although the virtual controller unit 8 constituted by 16 is formed, when the control device 5 itself has no hardware margin, the control device 5
An external tool or the like may be attached to the external tool, and the simulation TAG file 15 and the simulation control task 16 may be built in the external tool to perform the test operation of the above-described test target program.

Even in this case, similarly to the above-described embodiment, the operation of the monitoring program, the control program, etc. to be updated is checked while the operation of the plant to be monitored and controlled is continued. Thus, it is possible to safely update the monitoring program, the control program, etc. without lowering the operating rate of the plant.

[0057]

As described above, according to the present invention, in the supervisory control system according to the first aspect of the present invention, the monitoring program and the control subject to the update are controlled while the operation of the plant subject to the supervisory control is continued. An operation check of a program or the like can be performed, and thereby, the update of the monitoring program, the control program, or the like can be safely executed without lowering the operation rate of the plant.

In the supervisory control system according to the second aspect, it is possible to provide a simulation function while keeping the cost of the entire system low, whereby the plant subject to supervisory control can be operated continuously while being updated. By checking the operation of the monitoring program, control program, etc., the update of the monitoring program, control program, etc. can be safely executed without lowering the operation rate of the plant.

In the supervisory control system of claim 3, while continuing the operation of the plant subject to supervisory control,
By using the process model of the plant, you can check the operation of the monitoring program, control program, etc. that is the update target, and by doing so, update the past process data without decreasing the plant operation rate. It is possible to confirm the operation of the program or the like and safely execute the update of the program or the like.

In the supervisory control system of claim 4, while continuing the operation of the plant subject to supervisory control,
By using the current process data, you can check the operation of the monitoring program, control program, etc. that is the update target, and thereby update the current process data without reducing the plant operation rate. It is possible to confirm the operation of the program or the like and safely execute the update of the program or the like.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a distributed supervisory control system to which the present invention is applied.

FIG. 2 is a schematic diagram showing an example of supervisory control operation of the distributed supervisory control system shown in FIG.

FIG. 3 is a schematic diagram showing an example of supervisory control operation of the distributed supervisory control system shown in FIG.

FIG. 4 is a schematic diagram showing an example of supervisory control operation of the distributed supervisory control system shown in FIG.

5 is a schematic diagram showing an example of a program test operation using a process model among the program test operations of the distributed supervisory control system shown in FIG.

6 is a schematic diagram showing an example of a program test operation using a process model among the program test operations of the distributed supervisory control system shown in FIG.

7 is a schematic diagram showing an example of a program test operation using a process model among the program test operations of the distributed supervisory control system shown in FIG.

8 is a schematic diagram showing an example of a program test operation using a process model among the program test operations of the distributed supervisory control system shown in FIG.

9 is a schematic diagram showing an example of a program test operation using the current process data among the program test operations of the distributed supervisory control system shown in FIG.

10 is a schematic diagram showing an example of a program test operation using the process data at the present time, among the program test operations of the distributed supervisory control system shown in FIG.

FIG. 11 is a schematic diagram showing an example of a program test operation using process data at the present time, among the program test operations of the distributed supervisory control system shown in FIG. 1.

FIG. 12 is a block diagram showing an example of a conventionally known distributed monitoring control system.

[Explanation of symbols]

1: Distributed monitoring control system 2: Central monitoring control device (central monitoring control device) 3: Control LAN 4: Virtual process creation device (external device) 5: Control device (site monitoring control device) 6: PI / O Card 7: Real controller section 8: Virtual controller section (virtual monitoring control section on site) 9, 17, 21: Scan area 10: Batch input / output area 11: TAG file 12: Control task 13, 22: Simulation scan area 14: Virtual input / output area 15: Simulation TAG file 16: Simulation control task 18: Simulation scan area (central virtual monitoring control section) 19: Simulation mode selection section (central virtual monitoring control section) 20: Display task (central virtual monitoring) Control unit) 23: Virtual process creation learning unit 24: Virtual Russia Seth data file 25: virtual process data selection unit

Claims (4)

[Claims] 1. A supervisory control system for coordinating a central supervisory control device and a site supervisory control device to monitor and control a plant or each facility to be monitored and controlled, wherein the central supervisory control A simulation function implementing means for simulating execution of the content of the test target program is provided in the device and in the site side supervisory control device, and the central side supervisory control device, the actual supervisory operation of the site supervisory control device, the actual control action In parallel with the above, the supervisory control system is characterized in that a simulation function is operated to check the operation of the test target program. 2. The supervisory control system according to claim 1, wherein the simulation function realizing means is disposed in the central supervisory control device, and while performing virtual data exchange with the site supervisory control device, A central virtual supervisory control unit that displays a supervisory control screen, and a plant that is arranged in the on-site supervisory control device and is monitored and controlled while exchanging virtual data with the central supervisory control device. Alternatively, a supervisory control system comprising: a site-side virtual supervisory control unit for simulatingly monitoring and controlling each of the above facilities. 3. The supervisory control system according to claim 1, wherein a process model of the plant or each facility that is to be monitored and controlled is constructed, and the simulation function implementing means is A supervisory control system, wherein the operation check of the test target program is performed using a process model. 4. The supervisory control system according to claim 1, wherein the simulation function realizing means uses actual process data of the plant or each facility to be monitored and controlled. A supervisory control system, characterized in that the operation of the test target program is checked.