JPH08272432A - Plant central monitoring method and device thereof and automatic hard copy output device - Google Patents

Abstract

PURPOSE: To let an operator to concentrate in plant monitoring without being affected by the recording of plant data in a hard copy in the plant monitoring. CONSTITUTION: In plant central monitoring in which every kind of data is fetched from the constitutional equipment of a plant 1, and monitoring screen information to be displayed on plural display devices 5 is displayed by editing and generating every kind of data, and also, the monitoring screen information displayed on the screen of the display device 5 designated by a copy command when it is inputted is outputted from a hard copying machine 4 as the hard copy, the monitoring screen information designated in advance is generated by using every kind of data at a time when a prescribed condition in which a plant state is set in advance is satisfied is generated, and it is outputted from the hard copying machine 4 as the hard copy without displaying on the display device 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant central monitoring method and apparatus for monitoring a plant state using a plurality of monitoring display devices and collecting and recording a hard copy of necessary monitor screen information, and more particularly to a plant central monitoring method. Suitable for avoiding loss of recorded information due to contention of copy commands from each of a plurality of monitoring display devices, or for obtaining a hard copy of necessary information without disturbing monitoring by the monitoring display device. The present invention relates to a plant central monitoring method and its apparatus and a hard copy automatic output apparatus.

[0002]

2. Description of the Related Art In a plant central monitoring device for monitoring the operating state of a plant, various data that changes from moment to moment is acquired from the plant, and this is edited and processed using a computer to generate monitoring screen information. CR monitoring screen information
It is designed to be displayed on a display device such as a T display. The monitoring screen information is edited / processed and displayed based on the various data when the monitoring screen number or the like is designated.
The plant is normally monitored by a plurality of operators, and different display screen information is displayed on each of the plurality of display devices installed.

Further, one hard copy device is usually installed in the plant central monitoring device, and when the operator wants to keep a record of the monitoring screen information that he / she is monitoring, When the copy command switch attached to the display device is pressed, the monitor screen information is recorded as it is as a hard copy.

FIG. 7 shows a connection configuration of a conventional hard copy device. Generally, one hardcopy device 4 has n
CRT display devices 5 are connected to each other, and a switch contact is turned on / off in response to a switching request from a process input / output device (not shown), and a CRT control device 7 and a hard copy device 4 corresponding to a CRT display device for hard copy output are connected. , And the image data displayed on the CRT display 5 is output to the hard copy device 4.

In a central plant monitoring system equipped with such a hard copy system, there is data that should be kept as a record when an accident occurs, so that, for example, JP-A-61-2
In the conventional technique described in Japanese Patent No. 89405, predetermined monitoring screen information is output from the hard copy device as a hard copy when an accident occurs.

[0006]

The hard copy apparatus is
When collecting a hard copy, the screen information itself displayed on the display device is output. Therefore, when the predetermined monitor screen information is hard-copied when an accident occurs as in the above-mentioned conventional technique, it means that the monitor screen information to be hard-copied is displayed on a certain display device without notice. In other words, for the operator who is watching while watching the monitor screen information of the display device, it means that the monitored information suddenly switches to the monitor screen information for hard copy, and the monitoring is interrupted. To do.

[0007] The hard copy is intended to record information necessary for clarification of an accident and the like, and is not information necessary for plant monitoring at that time, but is information necessary later. Therefore, if the monitoring screen information currently being monitored is switched, it is not preferable in plant monitoring. Considering only for recording, it is sufficient to prepare a display device dedicated to the hard copy device, but it is a wasteful facility to prepare a dedicated display device for the hard copy device that is unnecessary during normal operation. Will be provided, which is a cost problem. Also, if all the various data acquired from the plant is stored in the storage device, it is not necessary to take a hard copy at that time, and it is sufficient to take out the necessary data from the storage device and make a hard copy at that time. A storage device having a large capacity is required, which is also a cost problem.

In addition, when an accident occurs, a plurality of operators input a copy command with a copy command switch attached to the display device for a screen to be recorded while monitoring the display device assigned to each operator. Therefore, multiple copy commands conflict with each other. When it takes, for example, one minute to print one hard copy, and five copy commands conflict with each other, the hard copy based on the last copy command is output from the hard copy device with a delay of four minutes. As described above, since the hard copy output from the hard copy device is the monitor screen information transferred from the CRT control device during the hard copy, the necessary information is already overwritten by the new information at the delay of 4 minutes. There is a high possibility that it has been recorded, and there is a possibility that necessary information cannot be recorded.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a plant central monitoring method and apparatus and a hard copy automatic output device which can reliably record necessary information without interrupting the monitoring.

[0010]

SUMMARY OF THE INVENTION The above-mentioned object is to take in various kinds of data from a plant component device, edit and generate the various kinds of monitoring screen information to be displayed on each of a plurality of plant monitoring display devices, and display the same. When a copy command is input, the monitoring screen information displayed on the screen of the plant monitoring display device specified by the command is output from the hard copy device as a hard copy, and when the copy command is input, the plant central monitoring The various data constituting the monitoring screen information displayed on the screen of the monitoring display device related to the command in is stored, and the monitoring screen information is stored from the stored various data in the free time of the hard copy device. It is achieved by generating and outputting a hard copy.

The above-mentioned object is also to use the various data at that time when the plant condition satisfies a predetermined condition (for example, absolute time, cycle time, plant operating condition change, plant trip factor, etc.) set in advance. This is achieved by generating monitoring screen information designated in advance and outputting the monitoring screen information as a hard copy from the hard copy device without displaying it on the plant monitoring display device.

The above object is also to save the various data at that point in time when the plant condition meets a preset predetermined condition, and to use the various data saved in advance in the free time of the hard copy device. This is achieved by generating designated monitor screen information and outputting the monitor screen information as a hard copy from the hard copy device.

The above-mentioned object is also to generate monitoring screen information designated in advance by using the various data at that time when the plant state satisfies a predetermined condition set in advance, This is achieved by outputting as a hard copy from the hard copy device prior to the copy command for the monitoring screen information displayed on the plant monitoring display device without displaying on the plant monitoring display device.

[0014]

If the plant data at the time of inputting the copy command is saved, the monitoring screen information at the time of saving the data can be generated and hard-copied even if the monitoring screen information changes. Even if there is a conflict at the same time, it is possible to make a hard copy of the monitoring screen information at the time of input of each copy command.

Further, even if the plant data is not displayed on the monitoring display device, the monitoring display device can be used by making a hard copy without displaying the plant data (monitoring screen information) on the display device. It does not interrupt the existing monitoring.

In addition, by saving the plant data when the predetermined condition is satisfied and collecting the hard copy in the free time of the hard copy device, it is possible to reliably obtain the necessary information even if it conflicts with the input of the copy command. You can get a hard copy.

Further, by preferentially outputting the hard copy when the predetermined condition is satisfied, it is possible to surely obtain the necessary information for recording.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of a plant central monitoring device according to an embodiment of the present invention. In the present embodiment, the plant 1, which is the operation monitoring target, is equipped with a detector (not shown) that continuously detects analog information and digital information in order to detect various operating states and the like. In the process data detected by these detectors, the process input / output device 2 converts the voltage and the current, which are analog information, into the number of digits, and the contact signals of the switches of the respective parts, which are the digital information, and the level of the voltage. Digit value "1"
Or, it is converted to "0". The electronic computer 3 takes in these process data from the plant 1 via the process input / output device 2 through a known input processing program periodically or on demand.

The electronic computer 3 converts the digit number into various engineering values by a known data conversion program, executes various calculations, etc., on the process data that has been taken in, and executes the processed data into engineering units. The data is collectively stored in a plant database provided in the storage device of the electronic computer 3.

In the CRT display data edit processing unit in the electronic computer 3, the data stored in the plant database as engineering unit data is further edited and processed into display units and figures, and with a prescribed interface and format,
It is sent to the CRT control device 7 as display image data.

The CRT control device 7 is, as shown in FIG.
The control / arithmetic unit 72 converts the display data into an image data signal (image data signal that can be processed by the CRT display control unit 73) and stores it in the display memory 71. C
The RT display control unit 73 takes out data from the display memory 71 and outputs it to the corresponding CRT display 5 to provide the operator with a visible screen.

In the hard copy device 4, the hard copy control unit 74 is driven in response to a hard copy output request from the electronic computer 3 or an operator, and the data in the display memory 71 is output.

In this embodiment, in order to automatically enable hard copy output of necessary data without affecting the image data currently displayed on the CRT display 5, a program as shown in FIG. With a group. In the embodiment described below, the configuration of the CRT control device is assumed to have the configuration shown in FIG. 4, that is, the function of independently controlling the CRT display and the hard copy output.

In the hard copy automatic output processing algorithm shown in FIG. 6, first, the operator's request or the request from the electronic computer 3 is 1) screen setting registration for automatic output of hard copy 2) screen display 3) hard copy It is judged which one of the output requests (branch processing step 91),
When the requested function is "display screen", CRT display 5
The display information such as the screen number of the screen displayed on the screen is stored (storage processing step 92), the image data for display which is actually output to the CRT display 5 is edited, and further, the CRT control device 7 is provided with a prescribed process that can be processed. Convert to interface and format, and output the data to the CRT controller 7 (C
RT display data editing step 93). Then, it is determined whether or not the screen to be displayed and edited and output is a screen for automatically outputting a hard copy (hard copy output determination step 9
4) The hard copy device 4 fetches the image data from the display memory and sends a hard copy request signal for outputting a hard copy (step 95).

If the request function is "register setting of screen for automatic output of hard copy" as determined in step 91, the same process as in step 92 is performed. When the hard copy output request is from the operator or the computer 3, that is, when the request function in step 91 is "hard copy output request", it is determined whether or not the screen is currently displayed (step 96). If the screen is not being displayed, the process proceeds to step 94. If the screen is not being displayed, the image data of the CRT screen that has been set and registered is edited in accordance with the prescribed interface and format (for hard copy output). Data editing step 97), the data created by this step 97 is output to the display memory for hard copy output and written (step 98), and the routine proceeds to step 95. Further, when an alarm or the like occurs and a predetermined condition is satisfied, that is, when a trigger condition is satisfied, it is determined whether or not a hard copy needs to be automatically output (step 99), and it is necessary. If it is determined that the above, the process proceeds to step 96. It is composed of

By making these processing steps independent of each other, the operator can select the desired CRT display screen (monitoring screen information) and the hard copy output trigger factor that the operator wants to output in hard copy by using a keyboard, a mouse or the like. It can be arbitrarily specified and registered by the device.

Inputs to the program group shown in FIG. 6 are input to the electronic computer 3 via various man-machine devices. "Arbitrary time (absolute time)" that is a hard copy output trigger factor, "Arbitrary time interval (cycle time)", "Arbitrary plant data status change", and "Important" Plant trip factor "
The determination processing such as designation of is added to each processing step.

In order to actually output the hard copy output request signal, if the timing is not properly adjusted, there is a possibility that the captured hard copy does not show anything or the request may be omitted. is there. Therefore, the timing adjustment processing programmed in the electronic computer 3 is performed.
This will be described with reference to FIG.

This timing adjustment process is a process in which the hard copy device is regarded as one CRT display,
This is a process equivalent to realizing display from the electronic computer 3 to the CRT display device 5 via the CRT control device. After the CRT control device 7 independently connected to the hard copy device 4 is requested to output the set and registered CRT display screen, a hard copy output request signal is sent to the hard copy device 4. By outputting, the CRT display screen registered by the operator is displayed on the hard copy device 4
Will be automatically and accurately output.

This operation will be described with the configuration shown in FIG. When the screen display output request is issued from the electronic computer 3 in the CRT display data editing step 93, the electronic computer 3 edits / processes the data stored in the above-mentioned plant database into display units or figures, and newly A simple plant database. Then, the CRT display data edited and processed in this way is transmitted to the CRT control device (shared CRT display and hardcopy output device) 8 in a prescribed interface and format. Upon receiving the data, the CRT control device 8 creates the CRT display device display data in accordance with the request processing in the control / arithmetic unit 83,
Stored in display memory (1) 81 and connected in its own device 84
Is switched to the CRT display control unit 73 to display a screen on the CRT display 5.

When a hard copy output request is issued, C
The control / arithmetic unit 83 in the RT control device 8 creates hard copy output data according to the request processing, stores it in the display memory (2) 82, and switches the connection 84 in the self device to the hard copy control unit 74. Outputs a copy to the hard copy device 4. If the screen currently being displayed is to be output in hard copy, the control / arithmetic unit 83 connects the display memory (1) 81 and the hard copy control unit 74 or displays the data in the display memory (1) 81. Either process of transferring to the memory (1) 82 is performed. Furthermore, if the CRT display data is always output to the hard copy device 4, the control / arithmetic unit 83 stores the same data in the respective display memories 81 and 82.

This embodiment is an example of an apparatus in which the control / arithmetic unit 83 is loaded with the processing shown in FIG. 6, and a control command is directly issued from the electronic computer to either or both of the CRT display control unit 73 and the hard copy control unit 74. Is not received, but a control command is received from the control / arithmetic unit 83 in the self device, and the control units 73 and 74 and the memories 81 and 82 are received.
CRT display 5, which is each terminal,
Output processing is performed on the hard copy device 4.

FIG. 5 is a block diagram of a hard copy automatic output device according to another embodiment of the present invention. This embodiment comprises an existing CRT controller for a CRT display and an image data conversion controller dedicated to hard copy output. Further, a program group as shown in FIG. It is loaded. In this embodiment, after switching the connection with the hard copy device 4 to the CRT control device 7 displaying the screen for which hard copy is desired, the hard copy device 4 is
The hard copy request signal is output to. Also, if you want to take a hard copy of the CRT screen that is not currently displayed,
After the CRT screen image data is created by the image data conversion control device 9 dedicated to hard copy output, the connection with the hard copy device 4 is switched and a hard copy request signal is output to the hard copy device 4.

Even with such an apparatus configuration, the CR
Not only is each of the CRT controllers 7 to which the T-display 5 is connected connected to the hardcopy device 4,
A CRT display device that can output CRT display data via the computer 3 to the image data conversion control device 9 dedicated to hard copy, which is independently connected to the hard copy device 4, and is used by the operator for plant operation monitoring. In 5,
Hard copy output is possible without affecting.

In each of the above-described embodiments, the necessary information is output from the hard copy device in addition to displaying the monitor screen information on the display screen. In addition to this example,
In the plant central monitoring device shown in FIG. 1, when the above-mentioned output trigger condition is satisfied, the monitoring screen information of the predetermined screen number is selected from the data in the plant database based on the plant data that is captured when the output trigger condition is satisfied. By transferring the configuration data to the required area in the storage device and storing it, it is possible to edit the monitor screen information when the output trigger condition is satisfied and make a hard copy from the saved data at any time during the free time of the hard copy device. Leave. In addition, by saving the data forming the monitoring screen information displayed on the display device at the time when the copy command switch equipped for the display device is pressed in the required area in the storage device, Edit the monitor screen information from the saved data so that a hard copy can be made. This allows the operator to concentrate on plant monitoring without being distracted by the recording of incoming data online. Even if the above-mentioned data storage is not performed, if the conditions necessary for data recording as output trigger conditions are appropriately determined in advance, by giving priority to the hard copy when the output trigger conditions are met, the operator can Also reduces the burden on.

[0036]

According to the present invention, there is no collection / recording failure of plant operation monitoring data, and reliability can be improved in terms of plant operation monitoring. Further, in an abnormal situation such as a plant trip, the operator can concentrate on the plant operation monitoring, which improves the work efficiency of the plant operation monitoring.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a plant central monitoring device according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a unit configuration in a CRT control device.

FIG. 3 is a flowchart showing an example of hard copy output algorithm according to an embodiment of the present invention.

FIG. 4 is a unit configuration diagram in the CRT control device in one embodiment of the present invention.

FIG. 5 is a configuration diagram of a hard copy automatic output device in which a CRT display control device and an image data conversion control device for hard copy output are shared in another embodiment of the present invention.

FIG. 6 is a flowchart showing a hard copy automatic output processing algorithm according to an embodiment of the present invention.

FIG. 7 is a block diagram of a conventional hard copy automatic output device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Plant, 2 ... Process input / output device, 3 ... Computer, 4 ... Hard copy device, 5 ... CRT display device, 6 ... Man-machine device CRT display device, 7 ... CRT control device, 8
CRT control device (shared control device for CRT display and hard copy output), 9 ... Control device dedicated to hard copy output (image data conversion control device for hard copy), 71 ... Display memory, 72 ... Control / arithmetic unit, 73 ... CRT display control unit, 74 ... Hard copy control unit, 81
Display memory 1, 82 Display memory 2, 83 Control / arithmetic unit 84 Control unit switching circuit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mikio Takahashi 3-2-1, Saiwaicho, Hitachi-shi, Ibaraki Hitachi Engineering Co., Ltd. (72) Inventor Yoshiaki Fujita 3--2, Saiwaicho, Hitachi-shi, Ibaraki No. 1 in Hitachi Engineering Co., Ltd. (72) Inventor Makoto Kanamori 3-2-1, Sachimachi, Hitachi City, Ibaraki Pref. Within Hitachi Engineering Co., Ltd.

Claims (12)

[Claims] 1. When various kinds of data are fetched from a plant constituent device, and monitoring screen information to be displayed on each of a plurality of plant monitoring display devices is edited and generated and displayed, and a copy command is input. In the plant central monitoring method that outputs the monitoring screen information displayed on the screen of the plant monitoring display device specified by the command as a hard copy from the hard copy device, the monitoring for the command at the time of input of the copy command The various types of data that make up the monitoring screen information displayed on the screen of the display device are saved, and the monitoring screen information is generated from the saved various types of data in the free time of the hard copy device and a hard copy is output. A method for centrally monitoring a plant, comprising: 2. When various kinds of data are fetched from a plant component device, and monitoring screen information to be displayed on each of a plurality of plant monitoring display devices is edited and generated and displayed, and a copy command is input. In the plant central monitoring method that outputs the monitoring screen information displayed on the screen of the plant monitoring display device specified by the command to the hardcopy device as a hardcopy, the plant condition is set to a predetermined condition. When the above condition is satisfied, pre-specified monitor screen information is generated using the various data at that time point, and the monitor screen information is output as a hard copy from the hard copy device without being displayed on the plant monitor display device. A plant central monitoring method characterized by the above. 3. When various kinds of data are fetched from a plant component device, and monitoring screen information to be displayed on each of a plurality of plant monitoring display devices is edited and generated and displayed, and a copy command is input. In the plant central monitoring method that outputs the monitoring screen information displayed on the screen of the plant monitoring display device specified by the command to the hardcopy device as a hardcopy, the plant condition is set to a predetermined condition. When the above conditions are satisfied, the various data at that time is stored, and the monitoring screen information specified in advance is generated by using the stored various data in the free time of the hard copy device, and the monitoring screen information is hard copied. A plant central monitoring method, characterized in that a hard copy is output from the device. 4. When various kinds of data are fetched from a plant constituent device, and monitoring screen information to be displayed on each of a plurality of plant monitoring display devices is edited and generated and displayed, and a copy command is input. In the plant central monitoring method that outputs the monitoring screen information displayed on the screen of the plant monitoring display device specified by the command to the hardcopy device as a hardcopy, the plant condition is set to a predetermined condition. When the above condition is satisfied, monitor screen information designated in advance is generated using the various data at that time, and the monitor screen information is displayed on the plant monitor display device without being displayed on the plant monitor display device. Output as a hard copy from the hard copy device in preference to the copy command for the monitored screen information A plant central monitoring method characterized by the above. 5. A process input / output device for fetching various data from a plant constituent device, a plurality of plant monitoring display devices, and monitoring screen information displayed on each of the plant monitoring display devices by editing the various data. A display control means for generating and displaying and a hard copy device for outputting the monitoring screen information displayed on the screen of the plant monitoring display device designated by the command as a hard copy when the copy command is input. In a plant central monitoring device provided, copy command input means, means for saving the various data constituting the monitoring screen information displayed on the screen of the monitoring display device according to the command at the time of input of the copy command, Generate the monitoring screen information from the stored various data and output a hard copy in the free time of the hard copy device. Plant building management system, characterized in that it comprises a peak output control means. 6. A process input / output device for fetching various data from a plant component device, a plurality of plant monitoring display devices, and monitoring screen information displayed on each of the plant monitoring display devices by editing the various data. A display control means for generating and displaying and a hard copy device for outputting the monitoring screen information displayed on the screen of the plant monitoring display device designated by the command as a hard copy when the copy command is input. In the plant central monitoring device provided, when the plant condition satisfies a preset predetermined condition, the monitoring screen information designated in advance is generated using the various data at that time point, and the monitoring screen information is used for the plant monitoring. A copy output control means for outputting a hard copy from the hard copy device without displaying it on a display device is provided. Central monitoring device for plants. 7. A process input / output device for fetching various data from a plant component device, a plurality of plant monitoring display devices, and monitoring screen information displayed on each of the plant monitoring display devices by editing the various data. A display control means for generating and displaying and a hard copy device for outputting the monitoring screen information displayed on the screen of the plant monitoring display device designated by the command as a hard copy when the copy command is input. In the plant central monitoring device provided, using a means for saving the various data at the time when the plant state satisfies a predetermined condition set in advance, and the various data saved in the free time of the hard copy device. The monitor screen information specified in advance is generated, and the monitor screen information is output as a hard copy from the hard copy device. A central monitoring device for a plant, characterized by comprising: 8. A process input / output device for fetching various data from a plant constituent device, a plurality of plant monitoring display devices, and monitoring screen information displayed on each of the plant monitoring display devices by editing the various data. A display control means for generating and displaying and a hard copy device for outputting the monitoring screen information displayed on the screen of the plant monitoring display device designated by the command as a hard copy when the copy command is input. The plant central monitoring device comprises means for generating monitoring screen information designated in advance by using the various data at the time when the plant state satisfies a preset predetermined condition, and the monitoring screen information Copy the monitoring screen information displayed on the plant monitoring display device without displaying it on the plant monitoring display device. A copy central control device, comprising: a copy output control unit that outputs a hard copy from the hard copy device in priority to a command. 9. A plant central monitoring device for fetching various data from a plant constituent device, editing and generating the various screen data to be displayed on each of a plurality of plant monitoring display devices, and displaying the edited screen data. In the hard copy automatic output device that outputs the monitoring screen information displayed on the screen of the plant monitoring display device specified by the command as a hard copy when the command is input, The various kinds of data constituting the monitoring screen information displayed on the screen of the monitoring display device are stored, and the monitoring screen information is generated from the stored various data in the free time of the hard copy automatic output device. An automatic hard copy output device that outputs a hard copy. 10. A plant central monitoring device which takes in various data from a plant constituent device, edits the various data to generate and displays monitoring screen information to be displayed on each of a plurality of plant monitoring display devices, and copies the data. When a command is input, the plant status is preset in the hard copy automatic output device that outputs the monitoring screen information displayed on the screen of the plant monitoring display device specified by the command as a hard copy. When a predetermined condition is satisfied, monitoring screen information designated in advance is generated by using the various data at that time, and the monitoring screen information is output as a hard copy without being displayed on the plant monitoring display device. Hard copy automatic output device. 11. A plant central monitoring device that takes in various data from a plant constituent device, edits the various data to generate and display monitoring screen information to be displayed on each of a plurality of plant monitoring display devices, and copies the data. When a command is input, the plant status is preset in the hard copy automatic output device that outputs the monitoring screen information displayed on the screen of the plant monitoring display device specified by the command as a hard copy. When the predetermined conditions are met, save the various data at that time,
A hard copy automatic output device, characterized in that in a free time of the hard copy device, monitoring screen information designated in advance is generated using the stored various data and the monitoring screen information is output as a hard copy. 12. A plant central monitoring device for fetching various data from a plant constituent device, editing and generating the various data to display monitoring screen information to be displayed on each of a plurality of plant monitoring display devices, and copying. When a command is input, the plant status is preset in the hard copy automatic output device that outputs the monitoring screen information displayed on the screen of the plant monitoring display device specified by the command as a hard copy. When the predetermined condition is satisfied, the monitoring screen information designated in advance is generated using the various data at the time, and the monitoring screen information is
An automatic hard copy output device, which outputs a hard copy prior to a copy command for monitoring screen information displayed on the plant monitoring display device without displaying on the plant monitoring display device.