JP2001331217A - Plant control monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly display a logic chart from a normal monitoring state in a plant control monitoring device having a controller 2 for controlling an in-plant facility 1 and a monitoring device 3 equipped with a logic chart displaying and editing means 12 for previously holding the logic chart of the control, displaying and editing it and a system chart displaying means 11 for previously holding system chart constituted by indicating the facility 1 with a symbol, and displaying it by adding the monitor information of the equipment 1 obtained from the controller 2. SOLUTION: When a facility symbol is designated on a system chart display screen, a logic chart displaying and editing means 12 is started so that the logic chart of a control program for controlling a designated facility 1 can be extracted from a storage part 14 so as to be displayed and edited.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant control and monitoring device in which a control device for controlling equipment in a plant and a monitoring device for monitoring the equipment are connected.

[0002]

2. Description of the Related Art FIG. 8 is a block diagram showing a configuration of a conventional plant control and monitoring device described in, for example, Japanese Patent Application Laid-Open No. 9-54567. In the figure, 1 is equipment in the plant,
2 is a control device for controlling equipment by a control program, 3
Is a monitoring device that monitors the equipment 1 based on information from the control device 2, and 4 is a control network that connects the monitoring device 3 and the control device 2. Reference numerals 5 and 6 denote a system diagram display unit and a control logic diagram display editing unit in the monitoring device 3, which are provided with a system diagram storage unit 7 and a control logic diagram storage unit 8, respectively, for displaying or displaying a system diagram and a control logic diagram. ,To edit. Reference numeral 9 denotes a CRT, and 10 denotes a key switch for switching between a plant monitoring mode and a control logic diagram editing mode.

Next, the operation will be described. Monitoring device 3
Normally operates in the plant monitoring mode, displays a system diagram by the system diagram display means 5, and displays a monitoring screen on which an alarm list, a trend graph, and the like are displayed on the CRT 9. The system diagram shows, for example, the configuration of the equipment 1 for each area in the plant, and displays the system diagram extracted from the system diagram storage unit 7 stored in advance with monitoring information from the control device 2 added thereto. Switching from the plant monitoring mode to the control logic diagram editing mode is performed by an operator operating the key switch 10, and the control logic diagram display editing means 6 displays the logic diagram of the control program.

[0004]

The conventional plant control and monitoring apparatus is constructed as described above. Usually, a system diagram to which monitoring information is added is displayed on the CRT 9 by the system diagram display means 5 to monitor the facility 1. When a user wants to display and edit a logic diagram of a control program used to control the equipment 1, the user operates the key switch 10 to switch modes. In the control logic diagram editing mode, a person selects a control logic diagram relating to the target equipment 1 on the selection screen displayed by the control logic diagram display editing means 6,
The corresponding control logic diagram is extracted from the control logic diagram storage unit 8 stored in advance and displayed on the CRT 9. As described above, in order to display the control logic diagram from the system diagram display state which is a normal monitoring state, the key switch 10 is operated, and a desired one is selected and designated from among more control logic diagrams. Required, the operability was poor, and time was required.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is a plant capable of quickly displaying and editing a desired control logic diagram from a normal monitoring state with good operability. It is an object to provide a control monitoring device.

[0006]

Means for Solving the Problems Claim 1 according to the present invention.
A plant control and monitoring device according to the first aspect includes a control device that controls equipment in a plant using a control program, a first storage unit that is connected to the control device via a transmission line, and stores a logic diagram of the control program in advance. A logic diagram display and editing means for extracting, displaying, and editing the data, and a system diagram for each predetermined range in the plant with the equipment symbols indicating the individual equipment, and a second system in which a desired system diagram is stored in advance. And a monitoring device for monitoring the equipment, comprising system diagram display means for extracting the storage diagram from the storage unit and adding the monitoring information of the equipment obtained from the control device to the system diagram for display. By specifying the equipment symbol on the system diagram display screen displayed by the display means, the logic diagram display editing means controls the logic of the control program for controlling the specified equipment. Display click view, in which it possible to edit.

According to a second aspect of the present invention, in the plant control and monitoring apparatus according to the first aspect, the logic diagram stored in the first storage unit is stored with an identification key added thereto.
The system diagram stored in the second storage unit is such that the identification key of the logic diagram is assigned to the equipment symbol and stored together, and the system diagram is stored in the second storage unit in accordance with the designated equipment symbol.
The identification key of the logic diagram is obtained from the storage unit, and the logic diagram is extracted and displayed from the first storage unit by the identification key.

According to a third aspect of the present invention, there is provided the plant control monitoring apparatus according to the first aspect, wherein the system diagram stored in the second storage unit is stored by assigning an identification key to an equipment symbol. Is stored together with the identification key of the corresponding equipment symbol. The identification key of the equipment symbol is obtained from the second storage part by the specified equipment symbol, and the identification key is obtained. By first
The above logic diagram is extracted from the storage unit of the above and displayed.

According to a fourth aspect of the present invention, there is provided a plant control monitoring apparatus according to any one of the first to third aspects, wherein, when there are a plurality of logic diagrams of a control program corresponding to the equipment symbol, there is provided a means for selecting any one of them. A selection screen is displayed when an equipment symbol is designated on the system diagram display screen, and a desired logic diagram is extracted and displayed by input from the outside.

According to a fifth aspect of the present invention, there is provided a plant control and monitoring apparatus according to any one of the first to fourth aspects.
For each operation of displaying, editing, and displaying the system diagram of the logic diagram of the control program, means is provided for retaining predetermined operation availability information to determine the availability of operation for each operator, and identifying the operator. Only a specific operator can perform the above operation by inputting information from outside.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a plant control and monitoring device according to Embodiment 1 of the present invention. In the figure, 1 is a facility in the plant, 2 is a control device that controls the facility by a control program, 3 is a monitoring device that monitors the facility 1 based on information from the control device 2, 4 is a monitoring device 3 and a control device 2. Is a control network as a transmission path for connecting the CRT, and 9 is a CRT.
Numerals 11 and 12 denote a system diagram display unit and a control logic diagram display editing unit in the monitoring device 3, which are a system diagram storage unit 13 as a second storage unit and a control logic diagram storage unit 14 as a first storage unit, respectively. To display or display and edit a system diagram and a control logic diagram. Reference numeral 15 denotes a control logic diagram display activation unit that is similarly provided in the monitoring device 3 and activates the control logic diagram display editing unit 12 from the system diagram display state.

The monitoring apparatus 3 normally displays a system diagram by the system diagram display means 11 and displays a monitor screen on which a list of alarms, a trend graph, and the like are displayed on the CRT 9. The system diagram displays, for example, the configuration of the facilities 1 in each area in the plant by using facility symbols indicating the individual facilities 1. The system diagram extracted from the system diagram storage unit 13 stored in advance is transmitted from the control device 2 to the system diagram. The monitoring information obtained via the control network 4 is added and displayed. FIG. 2 shows an outline of the system diagram data in the system diagram storage unit 13. As shown in FIG. 2, the system diagram data includes a screen number, a screen name, a screen size,
For each equipment symbol arranged on the screen, a coordinate, a graphic number, a tag number as an identification key of the equipment symbol, a number as an identification key of a control logic diagram of a control program used for the equipment 1 (hereinafter referred to as control logic). (Referred to as a figure number). The tag number is used as an identification key when changing the color of the equipment symbol or displaying numerical information as monitoring information. On the other hand, the control logic diagram storage unit 1
4 shows the logic diagram data of the equipment control program,
A control logic diagram number is assigned to each control logic diagram data and stored.

When the operator wants to display and edit the logic diagram of the control program used to control the equipment 1 from the system diagram display state, which is a normal monitoring state, the operator must use the system diagram displayed on the screen of the CRT 9. Click the desired equipment symbol in it. Thereby, the system diagram display means 11 extracts the control logic diagram number corresponding to the clicked equipment symbol from the system diagram data in the system diagram storage unit 13. The control logic diagram display activation means 15 activates the control logic diagram display editing means 12, obtains the extracted control logic diagram number from the system diagram display means 11, and notifies the control logic diagram display editing means 12. Control logic diagram display editing means 1
In step 2, the control logic diagram corresponding to the notified control logic diagram number is extracted from the control logic diagram storage unit 14 and displayed.

As described above, in this embodiment, the control for controlling the specified equipment 1 is performed by specifying the desired equipment symbol by clicking or the like on the system diagram display screen in the normal monitoring state. The logic diagram is automatically and promptly displayed. Thus, display and editing of a desired control logic diagram from a normal monitoring state can be quickly performed with good operability.

Embodiment 2 In the first embodiment, the system diagram data in the system diagram storage unit 13 includes, in addition to a screen number, a screen name, and a screen size, coordinates, a figure number, and a tag for each equipment symbol arranged on the screen. Although No and the control logic diagram number have been set, the plant control monitoring device according to this embodiment does not set the control logic diagram number for the equipment symbol as shown in FIG. On the other hand, the control logic diagram storage unit 14 stores the control logic diagram data of the facility 1 with a tag number for identifying which facility symbol corresponds to the data.

Also in this embodiment, when the operator wants to display and edit the logic diagram of the control program used for controlling the equipment 1 from the system diagram display state, which is a normal monitoring state, the operator can display the logic diagram on the CRT 9 screen. Click the desired equipment symbol in the displayed system diagram. As a result, the system diagram display means 11 reads the tag N corresponding to the equipment symbol clicked from the system diagram data in the system diagram storage 13.
Extract o. The control logic diagram display activating unit 15 activates the control logic diagram display editing unit 12, obtains the extracted tag number from the system diagram display unit 11, and notifies the control logic diagram display editing unit 12. The control logic diagram display editing means 12 extracts a corresponding control logic diagram from the control logic diagram storage unit 14 based on the notified tag number and displays the extracted control logic diagram.

As described above, also in this embodiment,
By specifying the desired equipment symbol by clicking or other operation on the system diagram display screen in the normal monitoring state,
A control logic diagram for controlling the designated facility 1 is automatically and promptly displayed. Thus, display and editing of a desired control logic diagram from a normal monitoring state can be quickly performed with good operability. In addition, since the control logic diagram number is not set in the system diagram data stored in the system diagram storage unit 13, creation of the system diagram data is facilitated.

Embodiment 3 Next, a case where there are a plurality of control logic diagrams corresponding to the equipment 1 in the plant control and monitoring apparatus according to the third embodiment of the present invention will be described. The system diagram data in the system diagram storage unit 13 is as shown in FIG.
The control logic diagram data of the equipment 1 is stored with a control logic diagram number individually corresponding to each control logic diagram and a tag No for identifying which equipment symbol corresponds to the control logic diagram data.

Also in this embodiment, when the operator wants to display and edit the logic diagram of the control program used to control the equipment 1 from the system diagram display state, which is a normal monitoring state, the operator must display the logic diagram on the CRT 9 screen. A desired equipment symbol in the displayed system diagram is clicked. The operation at that time will be described with reference to the flowcharts shown in FIGS. First, when the operator clicks a desired equipment symbol on the system diagram display screen (ST1).
1), the system diagram display means 11 waiting for the click (ST21) extracts the tag number corresponding to the clicked equipment symbol from the system diagram data in the system diagram storage unit 13 (ST22), and the tag number is extracted. Is notified to the control logic diagram display activation means 15 (ST23). As a result, the control logic diagram display activation unit 15 that has been waiting for the notification of the tag number (ST31) searches the control logic diagram storage unit 14 based on the notified tag number and searches for the control logic diagram of the corresponding control logic diagram. The number is extracted (ST32).

If there is no corresponding control logic diagram number in ST32 (ST33), the process returns to ST31 again.
Wait for the notification of the tag No. In ST32, when there is only one corresponding control logic diagram number (ST3
4), the control logic diagram display editing means 12 is started by designating the control logic diagram number (ST35). As a result, the standby control logic diagram display editing means 12 (ST41) is activated, extracts the control logic diagram of the designated control logic diagram number from the control logic diagram storage unit 14, and displays it on the screen of the CRT 9. (ST42).

In ST32, if there are a plurality of corresponding control logic diagram numbers (ST34), the control logic diagram display starting means 15 sets a selection screen for selecting a desired control logic diagram number from the retrieved control logic diagram numbers on the CRT 9 screen. (ST36), and waits for an input (ST37). ST3
When the operator selects a desired control logic diagram number on the selection screen displayed in step 6 (ST12), the control logic diagram display activation means 15 that has been waiting performs control by designating the control logic diagram number. The logic diagram display editing means 12 is activated (ST38). As a result, the control logic diagram display editing means 12 which has been waiting (ST41) is activated and extracts the control logic diagram of the designated control logic diagram number from the control logic diagram storage unit 14 and displays it on the screen of the CRT 9. (ST42).

As described above, also in this embodiment,
By specifying the desired equipment symbol by clicking or other operation on the system diagram display screen in the normal monitoring state,
A control logic diagram for controlling the specified equipment is automatically and promptly displayed. At this time, when there are a plurality of control logic diagrams corresponding to the equipment 1, the control logic diagram is displayed by automatically displaying a selection screen and allowing the operator to select.
Therefore, display and editing of a desired control logic diagram from a normal monitoring state can be quickly performed with good operability, and
Even when there are multiple control logic diagrams corresponding to the equipment 1,
A desired control logic diagram can be selected by an easy operation and quickly displayed.

In this embodiment, as in the case of the second embodiment, the case where the control logic diagram number is not set in the system diagram data is shown. However, as in the first embodiment,
In the system diagram data, a tag number for each equipment symbol and a control logic diagram number used for the equipment 1 are set, and when the equipment symbol is clicked, a plurality of control logic figure numbers set for the equipment symbol are set. If so, a selection screen may be displayed in ST36.

Embodiment 4 Next, a plant control and monitoring device according to a fourth embodiment of the present invention will be described. FIG.
FIG. 13 is a block diagram showing a configuration of a plant control and monitoring device according to a fourth embodiment of the present invention. The plant control and monitoring device includes a storage unit 16 for preset operation availability information, and includes an operation availability management unit 17 that determines the availability of operation for each operator. Have FIG. 7 shows the configuration of the operation availability setting information in the storage unit 16. As shown in FIG. 7, the operation permission / non-permission setting information includes, for each operator, an operation for each operation such as a system diagram display, a control logic diagram display, and a control logic diagram editing, in addition to the operator name, login name, and password. Is set.

Next, the operation will be described. When the plant control and monitoring device is activated, the operation availability management means 17 displays an operator information input screen on the CRT 9. The operator inputs his / her own login name and password. As a result, the operation availability management means 17 is thereafter provided with the system diagram display means 1
1. Upon receiving an inquiry about the availability of each operation from the control logic diagram display editing unit 12 and the control logic diagram display activation unit 15, the operation availability setting information in the storage unit 16 is stored based on the input operator information. , And extracts the information on whether or not the operation is applicable, and returns it to the inquiry source.

The system diagram display means 11 is activated when an operator inputs operator information, and inquires of the operation management means 17 whether or not a system diagram display operation is possible. If the operation is possible, a system diagram is displayed, and if the operation is not possible, the process ends. When the equipment symbol is designated on the system diagram display screen, the control logic diagram display activation unit 15 inquires of the operation management unit 17 whether or not the control logic diagram display operation can be performed. If the operation is possible, the control logic diagram display editing means 12 is activated to display the control logic diagram, and if the operation is not possible, the system diagram display is continued. When activated, the control logic diagram display editing means 12 performs a control logic diagram display process and inquires of the operation management means 17 whether or not a control logic diagram editing operation is possible. When the operation is permitted, the editing process is executed when the operator tries to edit, and when the operation is not performed, the editing process is not executed and the control logic diagram display is continued.

As described above, in this embodiment, the operation management means 17 is provided, and the operation availability of each operation of system diagram display, control logic diagram display, and editing is set in advance for each operator. Since the information is determined based on the information, only a specific authorized operator can operate each operation, and the security of the plant control monitoring device and the data stored in the device is improved.

[0028]

As described above, the plant control and monitoring device according to the first aspect of the present invention is a control device that controls equipment in a plant using a control program, and is connected to the control device by a transmission line. A logic diagram display / editing means for extracting a logic diagram of the control program from a first storage unit stored in advance, displaying and editing the same, and a system symbol for each predetermined range in the plant with equipment symbols indicating the individual equipment. A system diagram display means for constructing a diagram, extracting a desired system diagram from a second storage section stored in advance, and adding and displaying the equipment monitoring information obtained from the control device to the system diagram; A monitoring device for monitoring the equipment, and by designating the equipment symbol on the system diagram display screen displayed by the system diagram display means, the logic diagram display editing means Display logic diagram of the control program for controlling the constant has been equipment, since that makes it possible to edit, view from the normal monitoring state of a desired logic diagram editing, good operability can be implemented quickly.

According to a second aspect of the present invention, in the plant control monitoring apparatus according to the first aspect, the logic diagram stored in the first storage unit is stored with an identification key added thereto.
The system diagram stored in the second storage unit is such that the identification key of the logic diagram is assigned to the equipment symbol and stored together, and the system diagram is stored in the second storage unit in accordance with the designated equipment symbol.
In order to obtain the identification key of the logic diagram from the storage unit and extract and display the logic diagram from the first storage unit using the identification key, display and editing of a desired logic diagram from a normal monitoring state are performed. The operability of the operator is good and the processing can be quickly performed by the easy and reliable processing.

According to a third aspect of the present invention, in the plant control monitoring apparatus according to the first aspect, the system diagram stored in the second storage unit is stored by assigning an identification key to the equipment symbol, Is stored together with the identification key of the corresponding equipment symbol. The identification key of the equipment symbol is obtained from the second storage part by the specified equipment symbol, and the identification key is obtained. By first
To extract and display the above logic diagram from the storage unit of
Display and editing of the desired logic diagram from the normal monitoring state,
The operability of the operator is good and quick due to easy and reliable processing, and data creation of the system diagram stored in the second storage unit is also facilitated.

According to a fourth aspect of the present invention, in the plant control and monitoring apparatus according to any one of the first to third aspects, when there are a plurality of logic diagrams of the control program corresponding to the equipment symbol, there is provided means for selecting one of the logic diagrams. In addition, when the equipment symbol is specified on the system diagram display screen, a selection screen is displayed, and a desired logic diagram is extracted and displayed by input from outside, so even if there are multiple logic diagrams corresponding to the equipment, The display and editing of a desired logic diagram from the normal monitoring state can be quickly performed with good operability of the operator through easy and reliable processing.

According to a fifth aspect of the present invention, there is provided a plant control and monitoring apparatus according to any one of the first to fourth aspects.
For each operation of displaying, editing, and displaying the system diagram of the logic diagram of the control program, means is provided for retaining predetermined operation availability information to determine the availability of operation for each operator, and identifying the operator. Since only specific operators can perform the above operations by inputting information from outside, only specific authorized operators can operate each operation, and the plant control monitoring device and the data stored in the device Improve security.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a plant control and monitoring device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an outline of system diagram data in a system diagram storage according to the first embodiment of the present invention;

FIG. 3 is a diagram showing an outline of system diagram data in a system diagram storage unit according to a second embodiment of the present invention;

FIG. 4 is a flowchart showing an operation of the plant control and monitoring device according to the third embodiment of the present invention.

FIG. 5 is a flowchart showing an operation of the plant control and monitoring device according to the third embodiment of the present invention.

FIG. 6 is a block diagram illustrating a configuration of a plant control and monitoring device according to a fourth embodiment of the present invention.

FIG. 7 is a configuration of operation availability setting information according to Embodiment 4 of the present invention;

FIG. 8 is a block diagram showing a configuration of a conventional plant control and monitoring device.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 equipment, 2 control device, 3 monitoring device, 4 control network as transmission line, 9 CRT, 11 system diagram display means, 12 logic diagram display editing means, 13 system diagram storage as second storage, 14 1, a control logic diagram storage unit as a storage unit, 15 control logic diagram display activation unit, 16 operation availability information storage unit, 17 operation availability management unit.

Claims (5)

[Claims] 1. A control device for controlling equipment in a plant using a control program, connected to the control device via a transmission line, and extracting a logic diagram of the control program from a first storage unit stored in advance. And a logic diagram display and editing means for displaying and editing the system diagram, and a second storage unit in which a system diagram is formed for each predetermined range in the plant with the facility symbols indicating the individual facilities, and a desired system diagram is stored in advance. A monitoring device for monitoring the equipment, comprising a system diagram display means for adding and displaying the monitoring information of the equipment obtained from the control device to the system diagram, and monitoring the equipment. By designating the equipment symbol on the displayed system diagram display screen, the logic diagram display editing means displays a logic diagram of the control program for controlling the designated facility, and edits the logic diagram. A plant control and monitoring device characterized by being able to collect. 2. The logic diagram stored in the first storage unit is stored with an identification key added thereto, and the system diagram stored in the second storage unit is such that the identification key of the logic diagram is used for the equipment symbol. Are assigned and stored together. The identification key of the logic diagram is obtained from the second storage unit by the designated equipment symbol, and the logic diagram is extracted from the first storage unit by the identification key. The plant control and monitoring device according to claim 1, wherein the display is displayed. 3. The system diagram stored in the second storage unit is stored by adding an identification key to the equipment symbol, and the logic diagram stored in the first storage unit is stored together with the identification key of the corresponding equipment symbol. The identification key of the equipment symbol is obtained from the second storage unit by the specified equipment symbol, and the logic diagram is extracted from the first storage unit by the identification key and displayed. The plant control and monitoring device according to claim 1, wherein 4. When there are a plurality of logic diagrams of the control program corresponding to the equipment symbol, there is provided means for selecting any one of them, and when the equipment symbol is designated on the system diagram display screen, a selection screen is displayed. 2. A desired logic diagram is extracted and displayed by input of the command.
4. The plant control and monitoring device according to any one of 3. 5. A means for determining operation permission for each operator by holding preset operation permission information for each operation of displaying, editing, and displaying a system diagram of a logic diagram of a control program, The plant control and monitoring device according to any one of claims 1 to 4, wherein only a specific operator can perform the operation by inputting information for identifying the operator from outside.