JP2000010625A - Plant monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plant monitoring device executing information display for preventing the erroneous recognition and erroneous judgement of the abnormal operating state of equipments installed in a plant. SOLUTION: Information showing the operating state of plural equipments 2 installed in the plant 1 is gained by the operating information gaining means 4 of the plant monitoring device 3 and sent to a display means 5 and an abnormal operating state display means 6. The means 5 executes display concerning information showing the operating state of the equipments 2. When information showing the operating state of the equipments 2 shows the abnormality of operation, the means 6 allows the means 5 to execute flicker display sowing an abnormally operating equipment from among the equipments 2. A monitoring person recognizes the existence of the abnormally operating equipment by visually recognizing the flicker display and inputs the instruction of stopping the flicker display to an abnormal operating state display stopping instruction inputting means 7. An abnormal operating state display stopping means 8 stops the flicker display according to this input.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring device for centrally monitoring the operating states of a plurality of devices installed in a plant.

[0002]

2. Description of the Related Art In a plant monitoring apparatus for monitoring a large number of devices installed in a plant collectively, various and large amounts of information indicating the operating state of each device are transmitted to a supervisor (operator) of the plant monitoring device. There is a need to.

As a means for transmitting the information, it is common practice to provide a display device in the plant monitoring device to display the information, and to transmit the information to a monitoring person visually. When displaying information on this display device, the information display is color-coded according to the importance of the content of the information so that a supervisor can easily recognize the importance of the information content. Has traditionally been done.

[0004]

In such information display by color coding in such a conventional plant monitoring apparatus, the relationship between the importance of the information content and the colors used for color coding of the information display can be set arbitrarily. Need to know in advance the relationship between the display color of the information display and the importance of the information content in the plant monitoring device, and even if the user knows the relationship, monitor the relationship until they become proficient in the relationship. There is a risk that the user may hesitate before judging the importance of the information content from the display color of the information display, or may make an incorrect judgment.

[0005] Among the information indicating the operation state of the equipment, information indicating that the operation of the equipment is abnormal is extremely important information. It is desirable to be able to recognize it accurately.

Further, in the conventional plant monitoring apparatus, even if the monitoring person recognizes the information indicating the abnormal operation of the equipment, the recognition of the information cannot be fed back from the monitoring person to the plant monitoring apparatus. When a large number of devices in the plant have malfunctioned, for example, there has been a problem that a supervisor is confused by a large amount of device error information.

[0007] In view of the above problems, it is an object of the present invention to provide a plant monitoring apparatus for displaying information capable of preventing erroneous recognition or erroneous determination of an abnormal operation state of equipment installed in a plant. It is.

[0008]

In order to solve the above-mentioned problems, a plant monitoring apparatus according to the first aspect of the present invention centrally monitors the operation states of a plurality of devices installed in a plant. In the plant monitoring device, an operation information acquisition unit that sequentially acquires information indicating the operation state of the device, and a display unit that performs display indicating the operation state of the device based on the information acquired by the operation information acquisition unit. When the information obtained by the operation information obtaining means includes information indicating an abnormal operation state of the device, the display indicating the abnormal device in the operation state indicated in the information is displayed. Abnormal operation state display means for displaying on the means, the abnormal operation state display means indicates an abnormal device in the operation state indicated by the information by flicker display. It is characterized.

FIG. 1 is a block diagram showing the principle of the present invention. In the figure, a plant 1 includes equipment 2a, equipment 2b,
.. Have a plurality of devices 2. Information indicating the operation states of these devices is stored in the plant monitoring device 3.
Sent to. This information is obtained by the operation information obtaining means 4 of the plant monitoring device 3.

The information indicating the operation state of the device 2 acquired by the operation information acquisition unit 4 is sent to the display unit 5 and the abnormal operation state display unit 6. The display unit 5 displays information relating to the information indicating the operation state of the device 2 that has been sent. The abnormal operation state display means 6 is configured to output the information when the transmitted information indicating the operation state of the device 2 indicates an abnormal operation.
The display unit 5 displays a display indicating the device that is performing an abnormal operation from among the devices 2.

A major feature of the present invention is that flicker display is performed on the display means 5 by the abnormal operation state display means 6 to indicate a device which is performing an abnormal operation from among the devices 2. Here, flicker display refers to repetition of display / non-display, repetition of display color change, and repetition of display by alternately switching characters and / or symbols having different sizes and shapes. Such repetition of the display change is performed at such time intervals that the repetition can be immediately recognized by the monitor.

According to the configuration of the present invention described above, the occurrence of an abnormality in the operation of the equipment 2 installed in the plant 1 is determined.
Since the monitoring person is notified not by the change of the display color but by the flicker display, the monitoring person can surely recognize the occurrence of the device abnormality without hesitation.

Further, the plant monitoring apparatus according to the second aspect of the present invention, in addition to the features of the first aspect, causes the abnormal operation state display means to stop displaying on the display means. An abnormal operation state display stop instruction input means to which an instruction from a supervisor of the plant monitoring device is input; and an abnormal operation state display means to the display means according to the instruction input to the abnormal operation state display stop instruction input means. And an abnormal operation state display stopping means for stopping the display of the information.

In FIG. 1, an abnormal operation state display stop instruction input means 7 performs an abnormal operation by a monitor which recognizes the presence of a device which is performing an abnormal operation by visually recognizing the display on the display means 5. An instruction to stop the display indicating the connected device is input. The abnormal operation state display stopping means 8 stops the display on the display means 5 by the abnormal operation state displaying means 6 according to the input.

According to the above configuration of the present invention, the specific display of the abnormally operated device which has been recognized can be stopped from the display means 5 according to the instruction of the monitor, so that the monitor is confused by a large amount of device abnormality information. Can be prevented.

According to a third aspect of the present invention, in the plant monitoring apparatus, in addition to the features of the first aspect, the abnormal operation state display means is obtained by the operation information obtaining means. It is characterized in that the flicker display is changed according to the degree of abnormality of the device in which an abnormality has occurred in the operation state indicated in the information.

Here, the change in the flicker display means that a change in the display color of the flicker display, a change in the time interval of flicker in the flicker display, a change in characters or symbols displayed in the flicker display, etc. This refers to making a change to the flicker display to such an extent that the change accompanying the change can be immediately recognized.

According to the configuration of the present invention described above, it is possible to promptly notify the supervisor of the degree of abnormality of the device operation. According to a fourth aspect of the present invention, in the plant monitoring apparatus according to the second aspect, in addition to the features of the second aspect, the devices are classified to form a device group, and the abnormal operation state display means includes: When information indicating an abnormal operation state of the device is included in the information acquired by the operation information acquisition unit, the abnormal device in the operation state indicated in the information is included. The display indicating the device group is displayed on the display unit, and after the display indicating the device group on the display unit is stopped by the abnormal operation state display stop unit, the operation information obtaining unit obtains the display. When the information indicating the abnormal operation state of the other devices constituting the device group comes to be included, the display indicating the device group is displayed again on the display means. It is characterized in.

In the above configuration, the display of the abnormally operated device on the display means by the abnormal operation state display means does not directly specify the device, but is used as a display for specifying the device group including this device. I have. Further, the operation abnormality display by the device group is such that even after the display is stopped by the abnormal operation state display stop unit, the information acquired by the operation information acquisition unit indicates that the other devices constituting the device group are abnormal. When you start showing behavior,
Will be done again.

With this configuration, even if the number of devices to be monitored is large and all devices cannot be displayed on the display means, a display indicating an abnormal operation state can be performed for all devices. Therefore, the monitor can accurately recognize the abnormal operation of all devices installed in the plant.

It should be noted that the classification of the equipment for forming this equipment group is based on any criteria such as, for example, classification based on equipment used for each process of the plant or classification according to the type of equipment. May be used.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is an overall configuration diagram of a plant monitoring control system that implements the present invention.

The plant monitoring and control system shown in FIG. 1 includes a plant 10, a plant control device 20 for controlling the plant, and a plant monitoring device 30 for monitoring the operation state of the plant 10.
It is composed of

In the present embodiment, the plant 10
Is operated by operating three devices, the device 11, the device 12, and the device 13. These devices are operated according to control data sent from the plant control device 20. Although not shown in the figure, each of the devices 11, 12, and 13 is provided with a sensor for observing its own operation state, for example, a temperature, a pressure, and the like. , Equipment 11, 12,
13 is sent to the plant control device as the operation data.

The plant control device 20 includes a plant device I
/ F (interface) unit 21, input unit 22, display unit 2
3, CPU 24, monitoring device I / F unit 25, ROM 26,
It is composed of a RAM 27 and mutually connected via a bus 28.

The plant equipment I / F unit 21
The transmission of control data and the reception of operation data to the devices 11, 12, and 13 of 0 are performed. Input unit 22
Is composed of a keyboard or the like, and is used to input data from an operator of the plant control device 20. For example, control data of the devices 11, 12, and 13 of the plant 10 is input.

The display unit 23 is composed of a display device such as a CRT or a liquid crystal display, and displays information for an operator of the plant control device 20. For example, the display unit 23 checks input data to the input unit 22. Display and so on.

The CPU 24 is a central processing unit that controls the entire operation of the plant control device 20 while using the RAM 27 as a work area in accordance with a control program stored in the ROM 26.

The monitoring device I / F unit 25 sends out a device data tag created by the plant control device 20 to the plant monitoring device 30 based on the operation data of the devices 11, 12, and 13 of the plant 10. The device data tag will be described later.

The ROM 26 stores a control program for controlling the operation of the entire plant control device 20 executed by the CPU 24. The RAM 27 is used as a work memory when the CPU 24 executes the control program, a temporary storage of various data, and the like.

The plant monitoring device 30 includes a CPU 31, a control device I / F unit 32, a ROM 33, a RAM 34, a display unit 35, and an input unit 36, and is mutually connected via a bus 37.

The CPU 31 is a central processing unit that controls the operation of the entire plant monitoring device 30 while using the RAM 34 as a work area in accordance with the control program stored in the ROM 33.

The control device I / F section 32 receives and acquires the device data tag sent from the plant control device 20. The ROM 33 stores a control program for controlling the operation of the entire plant monitoring device 30 executed by the CPU 31.

The RAM 34 is used as a work memory when the CPU 31 executes the control program, a temporary storage of various data, and the like. The display unit 35 performs display to a person who monitors the plant monitoring device 30. The display unit 35 displays operation data of the devices 11, 12, and 13 of the plant 10, and displays flicker of devices in abnormal operation states described later. And so on.

The input unit 36 includes a keyboard and the like.
The input is made from the person who monitors the plant monitoring device 30, and an input such as an instruction to stop flicker display to be described later is made.

The plant monitoring and control system shown in FIG. 2 has the configuration described above. Next, a control program executed by the CPU 24 in the plant control device 20 will be described. This control program is stored in the ROM 26 in advance, and when the plant control device 20 is started, the control program is read out from the ROM 26 and started to be executed.
Is controlled by

The control program includes an operation control processing block for controlling the operation of the equipments 11, 12, and 13 of the plant 10, and an equipment data tag processing block for creating an equipment data tag and sending it to the plant monitoring apparatus 30. Can be broadly divided. Among them, the operation control processing of the devices 11, 12, and 13 of the plant 10 is not directly related to the present invention, and thus the description thereof is omitted.

Next, a description will be given of a device data tag process which plays a part of the control program. FIG.
It is a figure showing the structure of a device data tag. The device data tag has information on the operating state of each device constituting the plant 10 and is used to transmit this information to the plant monitoring device 30 via the plant control device 20. is there.

In FIG. 3, the device data tag 40 comprises a device identification code storage unit 41, an operation state flag 42, an operation data storage unit 43, and an operation control instruction flag 44. The device identification code storage unit 41 stores the device 1 of the plant 10.
This is a portion where a code indicating any one of 1, 12, and 13 is stored, and each piece of information included in the device data tag indicates which device of the plant 10 is the information.

The operation state flag 42 is a 1-bit flag indicating whether the operation state of the device indicated by the device identification code storage section 41 is normal or not. The bit flag is set to “1”. On the other hand, when the operation state of the device is normal, the bit flag is set to “0”. The plant control device 20 determines whether the operation state of the device is normal, and sets this flag.

The operation data storage section 43 is a section in which data indicating the operation state of the equipment indicated by the equipment identification code storage section 41 is stored. This is a part for storing the operation data of the equipment sent to the apparatus 20 as it is.

The operation control instruction flag 44 is a 1-bit flag indicating the content of the current operation instruction from the plant control device 20 to the device indicated by the device identification code storage unit 41, and controls the operation of the device. This bit flag is set to “1” when the instruction is being performed, and is set to “0” when the operation is being instructed to stop the device. You.

FIG. 4 is a flowchart of the device data tag process. When the control program stored in the ROM 26 is executed, a process corresponding to this flowchart is performed by the CPU 24. Device data tag processing
For example, the processing is executed at fixed time intervals by interrupt processing by a timer (not shown) of the CPU 24 itself. This time interval is desirably as short as possible in order to promptly notify the plant monitoring device 30 that a change has occurred in the operation data of each device of the plant 10.
Is set in consideration of the processing amount of other processing for controlling the processing and the processing capacity of the CPU 24 itself.

Hereinafter, FIG. 4 will be described with reference to FIG. 2 and FIG. First, in step 101, operation data of any of the devices 11, 12, and 13 of the plant 10 is obtained from the plant device I / F unit 21.

The process from step 102 to step 108 is a process for creating the device data tag 40. In step 102, an identification code indicating which device the operation data acquired in the previous step belongs to is stored in the device identification code storage unit 41. Equipment 1 of plant 10
The identification codes corresponding to 1, 12, and 13, respectively, are R
The data stored in the OM 26 in advance is read and stored.

In step 103, the normal range value of the operation data obtained from the ROM 27 when the device which has obtained the operation data in step 101 is operating normally is obtained.

For this step, the ROM 27 contains
The normal range value of the operation data of each device obtained when the devices 11, 12, and 13 of the plant 10 are operating normally is stored in advance. When the plant control device 20 is started, the operator inputs this value from the input unit 22 and inputs the value to the RAM.
27, and in this step, the RAM
This value may be read from 27.

In step 104, the operation data obtained in step 101 is compared with the normal range value of the operation data obtained in step 103. In step 105, as a result of the comparison in the previous step, if the operation data acquired in step 101 is within the normal range, the operation state flag is set to “0” in step 106, and the operation of the device is normal. Step 10
Proceed to 8. On the other hand, as a result of the comparison in step 104, if the operation data acquired in step 101 is not within the normal range, the process proceeds to step 107, the operation state flag is set to “1”, and the device performs abnormal operation. The process proceeds to step 108.

In step 108, the operation data of the device obtained in step 101 is stored in the operation data storage section 43. In step 109, the operation instruction content currently instructed by the plant control device 20 for the device acquired in step 101 is stored in the operation control instruction flag 44.

In step 110, the device data tag 40 created by the processing from step 102 to step 109 is sent from the monitoring device I / F unit 25 to the plant monitoring device 30.

In step 111, in the current device data tag processing, the device 1 provided in the plant 10
It is checked whether or not device data tags have been created and transmitted for all of the devices 1, 12, and 13. If the process has been performed for all devices, the current device data tag process is terminated. On the other hand, if there is any device for which the device data tag has not been transmitted yet, the process returns to step 101, and the above-described processing is repeatedly performed on the unprocessed device.

The above processing is the equipment data tag processing. Next, a control program executed by the CPU 31 in the plant monitoring device 30 will be described. The control program is stored in the ROM 33 in advance, and the CPU 31 reads out the control program from the ROM 33 when the plant monitoring device 30 starts up and starts executing the control program. The CPU 31 controls the entire plant monitoring device 30.

FIG. 5 is an overall control flowchart of the plant monitoring apparatus 30. When the control program stored in the ROM 33 is executed, a process corresponding to this flowchart is performed by the CPU 31.

In the screen display process of step 121, the device data tag 40 sent from the plant
Is acquired, and based on the information stored in the device data tag 40, the operation data of the devices 11, 12, and 13 of the plant 10 is displayed on the display unit 35.

In the alarm flicker process of step 122, the CPU 31 checks the operation state flag 42 of the acquired device data tag 40, and if the flag indicates that the operation of the device is abnormal, the display unit 35 indicates a device that has caused an abnormal operation by flicker display.
Perform processing to realize the characteristic functions of the present invention,
Further, a person who monitors the plant monitoring device 30 inputs the
In accordance with the flicker display stop instruction input to the CPU, processing for stopping the flicker display is also performed.

Hereinafter, both processes will be described.
First, the screen display processing in step 121 will be described. FIG. 6 is a diagram illustrating an example of a display screen displayed on the display unit 35. The display unit 35 in FIG. 3 is configured by a display device such as a CRT or a liquid crystal display.

The device name display section 51 displays the device names of the devices 11, 12, and 13 of the plant 10. In the example of FIG. 6, the device name of the device 11 is “device A”, the device name of the device 12 is “device B”, and the device name of the device 13 is “device C”.

The operation display section 52 is a section for displaying whether or not the apparatus displayed on the apparatus name display section 51 is in operation, and is displayed in a color defined by a color change definition described later. The state of the device is displayed by displaying the word "drive" (hereinafter referred to as a drive symbol).

The operation data display section 53 displays the plant 10
The measured values measured by the sensors provided in the devices 11, 12, and 13 are displayed. In the example of this figure, for the sake of simplicity, the operation data display unit 53 is shown so that the measurement value of one sensor is displayed for one device.

FIG. 7 is a flowchart of the screen display processing. FIG. First, in step 131, it is checked whether or not the control device I / F unit 32 newly receives the device data tag 40 from the plant control device 20.
If it has been received, the process proceeds to step 132, while if it has not been newly received, the current screen display process ends.

Here, the process in which the plant monitoring device 30 receives the device data tag 40 will be described. When receiving data from the plant control device 20, the control device I / F section 32 issues an interrupt request to the CPU 31. Perform In response to the interrupt request, the CPU 31 stores the device data tag 40 received by the control device I / F unit 32 in the RAM.
An interruption process for temporarily storing the information in a predetermined area secured in the storage is performed. Therefore, in the process of step 131, a change in data in the storage area of the device data tag 40 in the RAM 34 is checked.

In step 132 of FIG. 7, the color change definition information of the operation display section 52 on the display screen is obtained from the ROM 33. Here, the color change definition information of the operation display unit 52 will be described. FIG. 8 is a diagram showing the contents of the color change definition information of the operation display section 52. In the example shown in the figure, when the device is “ON”, that is, when the device is in the operating state, the “run” display on the operation display section 52 is performed in green, and the device is “OF”.
F ", that is, when the device is in the stopped state, the" operation "display on the operation display unit 52 is performed in magenta.

In the color change definition information shown in FIG. 11, another alarm flicker serial number is defined. The alarm flicker serial number will be described together with the description of the alarm flicker process.

The color change definition information is stored in advance in the ROM 33 as the definition of the initial state. However, the definition can be changed by an input to the input unit 36 by the person who monitors the plant monitoring device 30. Is performed, the color change definition information is stored in the RAM 34. In this case, in the process of step 132, the ROM 33
Instead of acquiring the color change definition information from, the color change definition information stored in the RAM 34 is acquired.

Returning to the description of FIG. 7, in step 133,
The operation control instruction flag 44 is obtained from the device data tag 40 stored in a predetermined area of the RAM 34 by the interrupt processing.

In step 134, the contents of the operation control instruction flag 44 obtained in the previous step are checked, and the flag is “1”, that is, the operation control instruction flag 44 of the plant 10 indicated in the device identification code storage unit 41 of the device data tag 40. If the operation instruction is instructed from the plant controller 20 to the device, the process proceeds to step 135. On the other hand, if the flag is "0", that is, the operation stop instruction is instructed. If so, the process proceeds to step 137.

In step 135, the operation symbol of the operation display section 52 corresponding to the equipment of the plant 10 indicated in the equipment identification code storage section 41 of the equipment data tag 40 stored in a predetermined area of the RAM 34 is displayed. It is checked whether or not flicker display has already been performed by an alarm flicker process described later. If flicker display has been performed, the process proceeds to step 138, and if flicker display has not been performed, the process proceeds to step 136.

In step 136, the color change definition information acquired in step 132 is referred to, and "ON", that is, the color specified in the display when the operation is instructed to the device (in the example of FIG. 8, (Green), the operation symbol is displayed in the corresponding column of the operation display section 52 on the display screen, and step 13
Proceed to 8.

In step 137, referring to the color change definition information acquired in step 132, “OFF”, that is, the color designated for display when the operation stop is instructed to the device (the example in FIG. 8) The driving symbol is displayed in the corresponding column of the driving display section 52 on the display screen.
Proceed to step 138.

In step 138, the device name indicated by the identification code stored in the device identification code storage portion 41 of the device data tag 40 stored in a predetermined area of the RAM 34 is displayed. Is displayed in the corresponding column.

In step 139, the operation data of the device data tag 40 stored in a predetermined area of the RAM 34 is displayed in a corresponding column of the operation data display section 53 on the display screen.
This screen display processing ends.

The processing up to this point is the screen display processing. Next, the alarm flicker processing of step 122 in FIG. 5 will be described. In the alarm flicker process in the present embodiment, when an occurrence of an operation abnormality of the equipment 11 or 12 of the plant 10 is detected in a state where an operation instruction is given from the plant control device 20, the operation display of FIG. The operation symbol of the unit 52 is displayed as flicker, and according to an instruction from a supervisor of the plant monitoring device 30,
A process for stopping the flicker display is performed.

FIG. 9 is a flowchart of the alarm flicker processing. Step 141 is a flicker data collection process of collecting data and determining whether to perform flicker display based on the data.

Step 142 is an alarm flicker display process for displaying flicker on the display screen of the display unit 35 based on the judgment result of the flicker data collection process. Step 143 is an alarm flicker stop process for stopping the flicker display in response to an instruction from the monitor of the plant monitoring device 30.

Here, the alarm flicker definition will be described. FIG. 10 is a diagram showing the contents of the alarm flicker definition information. In the figure, “1” is defined as the alarm flicker serial number. On the other hand, the same definition is made in the color change definition information of the operation display section 52 shown in FIG. This indicates that the two cooperate, and it is understood that the alarm flicker definition in FIG. 10 is a flicker definition for the driving symbol displayed on the driving display section 52 of the display screen.

In the next data tag specification, device A and device B are defined. According to this definition, the target of the flicker display is the devices A and B, that is, the device 1 of the plant 10.
It can be seen that this is for 1 and 12. Therefore, according to this definition, flicker display is performed on the display unit 35 of the plant monitoring device 30 for the device 13 of the plant 10 in the plant monitoring and control system illustrated in FIG. 2 even when the device 13 indicates an abnormal operation state. Absent. As described above, whether to perform flicker display can be selected based on the definition of the data tag specification.

"1" is defined in the next flicker information. This indicates that flicker display is performed when the operation state flag of the device data tag 40 is "1", that is, when an abnormal operation is indicated.

For the next flicker color, "R" (red) is defined. This is because when performing flicker display,
This is a definition that flicker display is performed in red. In this alarm flicker definition information, the initial value is stored in the ROM 33 in advance similarly to the above-described color change definition information, but similarly, the input to the input unit 36 by the monitor of the plant monitoring device 30 is also performed. The alarm flicker definition information is stored in the RAM 34 when the definition is changed. in this case,
In the process using this information, the alarm flicker definition information stored in the RAM 34 is acquired instead of acquiring from the ROM 33.

Now, each process of FIG. 9 will be further described. First, the flicker data collection processing in step 141 will be described. FIG. 11 is a flowchart of the flicker data collection process.

In step 151, the control device I / F unit 3
2 checks whether the device data tag 40 has been newly received from the plant control device 20. If so, the process proceeds to step 152. On the other hand, if the device data tag 40 has not been newly received, the current screen display is performed. The process ends. This process
This is performed in the same manner as the process of step 131 (FIG. 7) of the screen display process described above.

At step 152, the content of the data tag specification of the alarm flicker definition information stored in the ROM 33 (or the RAM 34) is checked, and if the content matches the device indicated by the device identification code storage unit 41 of the device data tag 40. If it exists, the process proceeds to step 153. On the other hand, if it does not exist, the current screen display process ends.

In step 153, the device data tag corresponding to the device indicated by the device identification code storage unit 41 is stored in the device data previous value storage area of the RAM 34 by the processing (described later) of step 156 of the previously executed flicker data process. It is checked whether or not is stored, and if it exists, the process proceeds to step 154. If it does not exist, the process proceeds to step 156.

In step 154, the RAM
The operation status flags 44 of the device data tag 40 confirmed to be present in the device data previous value storage area 34 and the device data tag 40 newly received this time are checked, and the previous operation status flag 44 is “0”, that is, If it indicates that the device is in a normal operation state and the current operation state flag 44 is "1", that is, indicates that the device is in an abnormal operation state, the process proceeds to step 155. On the other hand, if not, the process proceeds to step 156.

By the processing in this step, it is detected that an operation abnormality has occurred in the device indicated by the device identification code storage unit 41 of the device data tag. In step 155, the RAM 34 secured under the name of a new flicker occurrence area
A flag indicating that an abnormality has been detected in the previous step is set (set to "1") in the area inside the area.
The flag in this area is provided for each device installed in the plant 10, and the initial value is set to “0”. The flag in this area is referred to or operated in alarm flicker processing and alarm flicker stop processing described later.

In step 156, the device data tag 40 newly received this time is stored in the device data previous value storage area of the RAM 34 for each device indicated by the device identification code storage unit 41, and the current flicker data collection processing is terminated. .

The above processing is the flicker data collection processing. Next, the alarm flicker display processing in step 142 of FIG. 9 will be described. FIG. 12 is a flowchart of the alarm flicker display process.

In this flowchart, the flicker display and the normal display (display without flicker display) are performed for any one of the operation symbols currently displayed on the operation display section 52 of the display screen by the processing from step 161 to step 168. ), And in step 169, the switching process is performed for all the operation symbols currently displayed on the operation display section 52 of the display screen.

At step 161, the color change definition information of the operation display section 52 stored in the ROM 33 (or RAM 34) is obtained. In step 162, it is checked whether or not the alarm flicker serial number exists in the color change definition information acquired in the previous step.
Proceed to 63; if not, step 1
Go to 69.

At step 163, the alarm flicker definition information indicating the cooperation by the alarm flicker serial number existing in the color change definition information acquired at step 161 is acquired from the ROM 33 (or the RAM 34).

In step 164, the operation symbol displayed on the operation display section 52 of the display screen, which is the target of the current processing from step 161 to step 168, is used to specify the data tag of the alarm flicker definition acquired in the previous step. It is checked whether or not the device belongs to the indicated device. If so, the process proceeds to step 165, and if not, the process proceeds to step 169.

In step 165, a flag corresponding to the device whose operation state is indicated by the operation symbol that is the current processing target is obtained from the new flicker occurrence area of the RAM. This flag is a flag that is set in step 155 (FIG. 11) of the flicker data collection process described above or in the alarm flicker process described later.

In step 166, it is checked whether or not the flag acquired in the previous step is "1", and it is detected that "1", that is, the operation abnormality has occurred in the device corresponding to the operation symbol to be processed. If so, step 16
Go to step 7, otherwise, step 168
Proceed to.

In step 167, the operation symbol to be processed this time is flicker-displayed in the display color defined as the flicker color in the alarm flicker definition acquired in step 163, and the flow advances to step 169.

In step 168, the operation symbol that is the current processing target is normally displayed in the display color defined in the color change definition acquired in step 161. As the display color used at this time, a display color according to the operation control instruction flag 44 of the device data tag 40 is selected.

At step 169, it is checked whether or not the switching processing between the normal display and the flicker display from step 161 to step 168 has been performed for all the operation symbols displayed on the display screen. If this is the case, the current alarm flicker process ends. on the other hand,
If there are still unprocessed driving symbols,
Returning to step 161, the above-described processing is repeated for the unprocessed operation symbols.

The above processing is the alarm flicker display processing. Next, the alarm flicker stop processing of step 143 in FIG. 9 will be described.

FIG. 13 is a flowchart of the alarm flicker stop processing. In the figure, first, step 1
At 71, it is checked whether or not the input unit 32 has newly received an input requesting stop of the flicker display from the monitor of the plant monitoring device 30.
Proceeding to 72, on the other hand, if a new request has not been received, the current alarm flicker stop processing ends.

Here, the process in which the plant monitoring device 30 receives an input from the monitor requesting the stop of the alarm flicker will be described. First, the observer recognizes a device in which an abnormal operation has been detected among the devices installed in the plant based on the flicker display on the display unit 35, and then inputs to the input unit 36 a request to stop the flicker display. Then, the input unit 36 issues an interrupt request to the CPU 31. In response to this interrupt request, the CPU 31
An interrupt process for temporarily storing data input to the RAM 6 in a predetermined area of the RAM 34 is performed. Therefore, in the process of step 171, the data of the input data storage area in the RAM 34 is checked, and it is checked whether or not the data requesting the stop of the alarm flicker is included in the area.

In step 172, all the flags of the new flicker occurrence area in the RAM 34 are set to "0", and the current alarm flicker stop processing ends. By the processing of this step, when the alarm flicker display processing is executed thereafter, all the driving symbols displayed on the display screen are normally displayed.

The above processing is the alarm flicker stop processing. In the embodiment of the present invention described above, the display of the operation symbol of the operation display unit 52 is flicker-displayed in FIG. 6 in order to indicate the device in which the occurrence of the abnormality is detected. Device name display section 5
Even if the device name displayed in 1 is displayed as flicker, the operation data displayed in the operation data display section 53 is displayed as flicker, and even if these are simultaneously displayed as flicker, occurrence of an abnormality is detected. It is possible to show the equipment.

Although the operating states of the devices 11, 12, and 13 installed in the plant 10 are simply judged as normal / abnormal, actually, even if it is simply referred to as “abnormal”, a serious abnormality is detected. There is a wide variety, from trivial anomalies to minor anomalies. Therefore,
In the plant control device 20, the stage of the abnormality is set in advance in accordance with the degree of abnormality of the operation state of the device, and the stage of the abnormality is detected, and information indicating the stage of the abnormality is added to the device data tag 40. The plant monitoring device 30 changes the flicker display color, changes the flicker time interval of the flicker display, and displays characters and symbols displayed in the flicker display in accordance with the information indicating the stage of the abnormality. It is also convenient to perform a display in which the flicker display is changed, such as a change, so as to inform the monitor of the plant monitoring apparatus 30 of the degree of abnormality in the device operation.

Further, the normal / abnormal judgment of the operation of the equipments 11, 12, and 13 installed in the plant 10 is made by the plant control unit 20, but the equipments 11, 12, and 13 are determined.
May be performed independently. In this case,
A configuration in which data corresponding to the device data tag 40 is directly transmitted from the plant 10 to the plant monitoring device 30 may be adopted. Further, the determination of normal / abnormal operation of the devices 11, 12, and 13 may be performed by the plant monitoring device 30.

Next, another embodiment of the present invention will be described. In the embodiment of the present invention described above (hereinafter, referred to as the first embodiment of the present invention), the device in which the occurrence of the abnormality is detected is displayed on the display unit 3 of the plant monitoring device 30.
5 could be shown individually. However, if the number of display points on the display unit 35 is limited, or if the number of devices installed in the plant 10 becomes very large, it is difficult to individually display the occurrence of an abnormality on the display unit 35.

Therefore, a plurality of devices installed in the plant 10 are put together to form some groups, and the display unit 3
Instead of displaying the presence / absence of the detection of the occurrence of an abnormality for each device, the presence / absence of the detection of the occurrence of an abnormality is displayed for each group.

[0105] It should be noted that the classification of the equipment for constituting this equipment group may be arbitrary. For example, if the equipment is classified according to the equipment used for each process of the plant, or if it is classified according to the type of equipment, It is easy and convenient for the person who monitors the plant monitoring device 30 to grasp the group configuration.

FIG. 14 is a diagram showing an example of the display unit 35 according to the second embodiment of the present invention. FIG.
It is assumed that a group having a name of group X is configured by the device 12 and the device 12. The group name shown in the group name display section 54 is printed on the panel of the display section 35.

The operation display section 52 includes a light bulb or an LED.
When the operation display unit 52 is lit, the operation is instructed to all the devices constituting the group, and when the operation display unit 52 is turned off, the operation is performed for all the devices constituting the group. Indicates that the operation has been stopped. When the operation display section 52 is blinking, that is, flickering, it indicates that an abnormality has been detected in operation data of any of the devices constituting the group. In the second embodiment of the present invention, the instruction to start / stop the devices from the plant control device 20 to each device in the plant 10 is the same for all the devices constituting the group. Instructions shall be given.

The operation data display section 53 is constituted by a display device such as a CRT or a liquid crystal display.
The measured values measured by the sensors provided in the devices 11 and 12 of No. 0 are displayed. This display device is smaller than the display unit 35 shown in FIG. 6, and therefore displays only driving data to ensure visibility.

A program for the CPU 31 to control the plant monitoring apparatus 30 having the display unit 35 shown in FIG. 14 can be used by slightly changing the control program used in the first embodiment of the present invention. . Hereinafter, this program will be described. In this program, the information of the devices constituting the group is stored in the RO beforehand.
It is stored in M33.

First, a flowchart of a program for controlling the entire plant monitoring apparatus 30 is the same as that shown in FIG. In the figure, the screen display processing of step 121 is changed to the processing of the flowchart shown in FIG. In the processing steps of FIG. 15, the same steps as those in the flowchart of the screen display processing in the first embodiment shown in FIG. 7 are denoted by the same reference numerals.

In the second embodiment of the present invention, since there is no color change definition information of the operation display section 52, step 132 in FIG. 7 is deleted in FIG. 15, and steps 181 and 182 in FIG. Is Step 1 in FIG.
36 and the processing of step 137 by the device data tag 40
Of the operation display unit 52 corresponding to the device group in which the device indicated by the device name display unit 41 is included in the component is changed to a process of turning off or on. As described above, since the information of the devices constituting the device group is stored in the ROM 33 in advance, by referring to this information, the process of turning off or on which operation display unit 52 is performed. Is the CPU3
You can judge by 1.

Further, the processing of step 138 in FIG. 7 is deleted because the device name display section 51 as shown in FIG. 6 does not exist in the second embodiment of the present invention. Next, the change of the alarm flicker processing will be described.

The flowchart of the alarm flicker process shown in FIG. 9 can be used without any change. Also, among the processing steps shown in FIG. 10, the flicker data collection processing in step 141 and the alarm flicker stop processing in step 143 need not be changed, but the contents of the alarm flicker definition information shown in FIG. change.

In the alarm flicker definition information shown in FIG. 10, the definition content of the data tag designation is changed so as to indicate all devices constituting the device group. Therefore, the alarm flicker definition information is prepared corresponding to each device group.

In the second embodiment of the present invention, it is not necessary to define the alarm flicker serial number and the flicker color shown in FIG. In FIG. 9, a flowchart after the change of the alarm flicker display processing in step 142 is shown in FIG.

In this flowchart, the current display on the operation display section 52 is switched between flicker display and normal display (display without flicker display) by the processing from step 191 to step 195. , The switching process is performed for all the displays of the operation display unit 52.

In step 191, the alarm flicker definition information corresponding to the device group whose operation state is indicated on the operation display section 52, which is the current target of the processing from this step to step 195, is acquired from the ROM 33.

In step 192, all the flags corresponding to the devices defined by the data tag specification of the alarm flicker definition information obtained in the previous step are obtained from the new flicker occurrence area of the RAM.

In step 193, it is checked whether or not at least one of the flags acquired in the previous step is "1". If any flag exists, that is, if any of the devices constituting the group has an abnormal operation. If the occurrence has been detected, the process proceeds to step 194; otherwise, the process proceeds to step 195.

In step 194, the operation display section 52, which is the current processing target, is flickered (that is, blinks), and the flow advances to step 196. In step 195, the operation display section 52 which is the current processing target is displayed on the device data tag 4
In accordance with the operation control instruction flag 44 of 0, the display is turned on or off as a normal display.

At step 196, it is checked whether or not the normal display / flicker display switching process from step 191 to step 195 has been performed for all operation display sections 52. If all the processes have been performed, the current alarm flicker process is performed. To end. On the other hand, if an unprocessed operation symbol remains, the process returns to step 191 to repeat the above-described processing for the unprocessed operation display unit 52.

The above processing is the alarm flicker display processing in the second embodiment of the present invention. next,
FIG. 17 shows a change in the display of the operation display unit 52 according to the second embodiment of the present invention, and the figure will be described.

First, the plant control device 20 starts the operation of the equipment 1 of the plant 10 which is a component of the group X.
1 and the equipment 12 are instructed to start operation. This instruction is also transmitted to the plant monitoring device 30, and the operation display unit 52 of the group X is turned on.

Immediately after the start of the operation, both the equipment 11 and the equipment 12 were in a normal operating state. However, in the above, an abnormal operation of the equipment 11 was detected and transmitted to the plant monitoring apparatus 30.
The operation display unit 52 of the group X starts flicker display.

The observer who has confirmed the flicker display on the operation display section 52 recognizes from the operation data displayed on the operation data display section 53 that an abnormality has occurred in the device 11, and
, An input requesting stop of flicker display is added to the input unit 36. The operation display unit 52 of the group X stops the flicker display in response to this input, and enters a lighting state, which is a normal operation display.

However, at this time, the detection of the operation abnormality of the device 12 is transmitted to the plant monitoring device 30.
At this time, the operation display unit 52 of the group X restarts the flicker display even though the flicker display has been stopped according to the instruction from the monitor.

The observer who has confirmed the flicker display again on the operation display section 52 recognizes that an abnormality has occurred in the device 12 from the operation data displayed on the operation data display section 53, An input requesting stop of the flicker display is made to the unit 36 again. The operation display unit 52 of the group X stops the flicker display in response to this input, and enters a lighting state, which is a normal operation display.

Thereafter, the plant control device 20 instructs the equipment 11 and the equipment 12 to stop the operation, and this instruction is also transmitted to the plant monitoring device 30.
The operation display section 52 of the group X is turned off.

As described above, when the operation abnormality of the other devices constituting the device group is detected, the flicker display is performed again even after the flicker display stop instruction is given from the monitor. The operation No. 17 is a characteristic operation relating to the present invention in the second embodiment of the present invention. By this operation, even if an operation abnormality occurs in a plurality of devices constituting the device group, the observer can perform the operation. It is possible to recognize all devices in an abnormal operation state without overlooking them.

In the second embodiment of the present invention, when an operation abnormality occurs almost simultaneously in a plurality of devices in the same group, a flicker display is displayed according to the number of the devices in which the operation abnormality has occurred. The flicker display is changed so as to change the display color, change the flicker time interval of the flicker display, change characters and symbols displayed in the flicker display, etc. It is also convenient to notify that an operation abnormality has occurred in a plurality of devices. In such a case,
It is also useful that the flicker display cannot be stopped unless the monitor gives the plant monitoring device 30 an instruction to stop flickering the number of times corresponding to the number of devices in which the operation abnormality has occurred.

[0131]

Since the present invention is configured as described above in detail, an information display that can prevent an erroneous recognition or erroneous determination of an abnormal operation state of a device installed in a plant in a plant monitoring apparatus. Can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the principle configuration of the present invention.

FIG. 2 is an overall configuration diagram of a plant monitoring control system that implements the present invention.

FIG. 3 is a diagram showing a structure of a device data tag.

FIG. 4 is a flowchart of a device data tag process performed by a CPU 24 in the plant control device 20.

FIG. 5 is a control flowchart of the entire plant monitoring device 30.

FIG. 6 is a diagram showing an example of a display screen of a display unit 35.

FIG. 7 is a flowchart of a screen display process.

FIG. 8 is a diagram showing the contents of the color change definition information of the operation display section 52.

FIG. 9 is a flowchart of an alarm flicker process.

FIG. 10 is a diagram showing the contents of alarm flicker definition information.

FIG. 11 is a flowchart of flicker data collection processing.

FIG. 12 is a flowchart of an alarm flicker display process.

FIG. 13 is a flowchart of alarm flicker stop processing.

FIG. 14 shows a display unit 3 according to the second embodiment of the present invention.
It is a figure which shows the example of No. 5.

FIG. 15 is a flowchart of a screen display process according to the second embodiment of the present invention.

FIG. 16 is a flowchart of an alarm flicker display process according to the second embodiment of the present invention.

FIG. 17 is a diagram illustrating a change in the display of the operation display unit 52 according to the second embodiment of the present invention.

[Explanation of symbols]

 1, 10 plant 2, 2a, 2b, 2c, 11, 12, 13 equipment 3, 30 plant monitoring device 4 operation information acquisition means 5 display means 6 abnormal operation state display means 7 abnormal operation state display stop instruction input means 8 abnormal operation Status display stopping means 20 Plant control device 21 Plant equipment I / F unit 22, 36 Input unit 23, 35 Display unit 24, 31 CPU 25 Monitoring unit I / F unit 26, 33 ROM 27, 34 RAM 28, 37 Bus 32 Control Device I / F unit 40 Device data flag 41 Device identification code storage unit 42 Operation status flag 43 Operation data storage unit 44 Operation control instruction flag 51 Device name display unit 52 Operation display unit 53 Operation data display unit 54 Group name

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H02J 3/00 H02J 3/00 K F Term (Reference) 5C087 AA02 AA10 AA12 AA15 AA19 BB74 DD03 DD08 DD21 EE08 EE15 GG07 5G066 AA09 AE07 AE09 5H223 AA01 BB02 CC08 DD03 DD09 EE01 EE08 EE11 EE15 EE19 FF03 FF08

Claims (4)

[Claims] 1. A plant monitoring apparatus for centrally monitoring the operation state of a plurality of devices installed in a plant, wherein: an operation information acquisition unit for sequentially acquiring information indicating an operation state of the device; Based on the information obtained,
A display unit for performing a display indicating the operation state of the device; and when the information acquired by the operation information acquisition unit includes information indicating an abnormal operation state of the device, the information is indicated by the information. Abnormal operation state display means for displaying on the display means a display indicating an abnormal apparatus in an operating state, wherein the abnormal operation state display means is an abnormal apparatus in the operation state indicated in the information. Is indicated by flicker display. 2. An abnormal operation state display stop instruction input means for inputting an instruction from a monitor of the plant monitoring apparatus to stop the display on the display means by the abnormal operation state display means, and the abnormal operation state display 2. The plant according to claim 1, further comprising: an abnormal operation state display stop unit configured to stop the display on the display unit by the abnormal operation state display unit in accordance with an instruction input to the stop instruction input unit. 3. Monitoring device. 3. The abnormal operation state display means changes the flicker display according to the degree of abnormality of a device having an abnormality in the operation state indicated by the information acquired by the operation information acquisition means. 2. The method of claim 1, wherein
A plant monitoring device according to claim 1. 4. The device is classified to form a device group, and the abnormal operation state display unit includes information indicating an abnormal operation state of the device in information acquired by the operation information acquisition unit. Then, a display indicating the device group including the abnormal device in the operation state indicated in the information is displayed on the display unit, and the display unit is displayed by the abnormal operation state display stop unit. After the display indicating the device group is stopped, the information obtained by the operation information obtaining means includes information indicating an abnormal operation state of another device forming the device group. 3. The plant monitoring apparatus according to claim 2, wherein when the condition is changed, a display indicating the device group is displayed again on the display unit.