JP2000347731A - Automatic data collecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily grasp state change in plant emergency in a short time by freely changing items in an interlock picture and also displaying an operation history together with a more detailed trend graph. SOLUTION: This automatic data collecting device is provided with a registering means 3A which arranges a plurality of relevant information corresponding to the lower parts of respective operation stop modes hierarchically and registers it in the case of manually inputting a plurality of operation stop modes of a preliminarily set plant and a plurality of relevant information with which the operation stop modes are started in each of these respective operation modes and image displaying means 3A and 5 which simultaneously display the respective operation stop modes made to start responding to updated relevant information and the respective relevant information on one screen when relevant information starting the operation start modes is successively updated and transmitted by the plant.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an interlock screen for displaying a message relating to the state of a plant, which can be freely changed, and a display of an operation history together with a trend graph. The present invention relates to an automatic data collection device in which a state change at a time is grasped on a screen.

[0002]

2. Description of the Related Art FIG.
FIG. 1 is a configuration diagram of a conventional monitoring and control device disclosed in Japanese Unexamined Patent Publication (Kokai) No. H10-26095.
In the figure, reference numeral 1 denotes a controller for inputting plant information such as an operating state, a failure state 9 and a measured value 10 from on-site facilities and equipment of a plant, and 2 denotes a communication path for transmitting plant information from each controller 1 to an operator station main body. Reference numeral 3 denotes an operator station main body that processes plant information transmitted from the controller 1 into image display data and print data, and 4 denotes an operator station main body 3 for inputting, for example, monitoring data and issuing a data processing instruction. A keyboard 5 for inputting monitoring data to the operator station main body 3 and for giving a data processing instruction, etc .; and 6, a plant information based on image display data processed by the operator station main body 3. The image display CRT, 7 is also the operator A printer that prints the plant information as a hard copy based on the printing data processed by the application main unit 3. The printer 8 prints a status signal 9 together with the date and time of an alarm every time a status signal 9 that warns of a plant abnormality is input. This is the printer for the journal you want to use.

Next, the operation of the conventional apparatus will be described. When an abnormality occurs on the plant side, first, a state signal 9 indicating an abnormal state of the plant is transmitted to the controller 1 and then to the operator station main body 3 via the communication path 2. Next, the operator station main body 3 detects a change in the input status signal 9 and, when the occurrence of an abnormality is detected, a message (hereinafter, referred to as a message) for the status signal 9
Described as interlock. Assemble).

[0004] The operator station main body 3 selects an interlock screen prepared in advance in accordance with the assembled interlock, and displays the corresponding item on the CRT 9 in response to a plant abnormality. As a result, the operator station main body 3 can alert the operator to the occurrence of an abnormality through the interlock screen.

When a measured value 10 consisting of various analog data such as temperature and water pressure is taken in from the controller 1, it is sampled in a predetermined time unit, digitally converted and edited into trend data. This trend data is graphically displayed on the CRT 9 as a trend graph showing the tendency of the measured value 10 to change over time.

[0006]

The interlock screen in the conventional device has one sheet for each interlock.
One sheet has been created in advance. Then, an interlock screen is selected according to the generated interlock, and an item to be dealt with for the plant abnormality is notified to the operator through the screen. Therefore, for example, if the plant abnormality changes over time and the interlock changes accordingly,
Since the interlock screen corresponding to each interlock is selected and the screen is switched and displayed, it is difficult to comprehensively grasp the interlock corresponding to the time lapse of the plant abnormality from one screen. In order to solve such a problem, when an attempt is made to add a new item to the currently displayed fixed format interlock screen when a new interlock occurs when the interlock screen is displayed, the currently displayed interlock screen is displayed. Since the items must be added by shifting the line arrangement of each item one line at a time, it takes time to display the interlock screen after adding the item, and it is not easy to change the interlock screen There was a point.

When a trend graph is displayed on a CRT, analog data is acquired at a sampling time of at least one second to generate trend data, and a trend graph is displayed. There was a problem that it could not be understood from the trend graph.

Further, since the operation history data of the apparatus is not generated as the screen display data, when checking the plant abnormality by comparing the operation history with the trend graph, both data are read and compared. However, there is a problem that it takes time to perform the abnormality analysis.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and it is possible to freely change items on an interlock screen, and to display an operation history together with a more detailed trend graph. It is an object of the present invention to provide an automatic data collection device that can easily and easily grasp a state change at the time of a plant abnormality.

[0010]

According to a first aspect of the present invention, there is provided an automatic data collection apparatus, comprising: a plurality of preset operation stop modes of a plant; and a plurality of start mode for each of these operation stop modes. A registering means for hierarchically arranging and registering a plurality of pieces of related information corresponding to a lower portion of each operation stop mode at the time of manually inputting the related information; and And a screen display means for simultaneously displaying the respective operation stop modes and the respective relevant information on a single screen when transmitted in response to the updated relevant information.

According to a second aspect of the present invention, in the automatic data collecting apparatus, the registering means, when monitoring the related information from the plant, stores the measured analog data input from the plant for a predetermined time unless the related information is transmitted. Sampling is performed every time and update registration is repeated at a predetermined time period.When transmitting the relevant information, the analog data before and after transmitting the relevant information is registered as trend data, and the screen display means displays a trend graph based on the trend data. It is to be displayed on the screen.

According to a third aspect of the present invention, in the automatic data collecting apparatus, the screen display means displays the operation history of the plant in chronological order in accordance with a change in the trend graph.

According to a fourth aspect of the present invention, there is provided an automatic data collecting apparatus including a printing means for automatically printing and outputting the contents displayed on the screen display means when a plant operation stop mode occurs.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a diagram showing a configuration of the automatic data collection device according to the first embodiment. It is important for the operator who is in charge of monitoring and controlling the plant to always record the information related to the abnormality elucidation by himself in order to concentrate his or her mind on the restoration of the abnormality when an abnormality occurs.

However, since a complicated plant system has a large amount of related information, it is practically difficult to immediately select appropriate related information for abnormal recovery. Therefore, if related information can be provided to the operator in an organized manner in the event of an abnormality, it is very effective for abnormality measures.

Therefore, the operator station main body 3A according to the first embodiment shown in FIG. 1 has a builder function that can be provided to an operator through a CRT screen in a form in which related information is arranged in addition to the functions of the conventional operator station main body 3. Prepare.

Here, the builder function means, for example, various modes for stopping the plant, that is, interlocks.
The name of each stop mode, such as emergency stop to stop the plant at once, first stop to stop predetermined functions quickly, and normal stop to stop the order from upstream to downstream of the plant, and start the stop mode set for each stop mode For example, the condition of 100 (interlock), the address of the controller that outputs the measured value 10 required when each interlock occurs, is written into the designated area of the table displayed on the CRT 6 by the keyboard operation of the operator. Figure 2
This is to generate a builder screen (engineering screen) shown in (1).

In the builder screen, 100 interlocks (messages) are set for one stop mode, and eight controller address data are set for each interlock. The data is a stop mode, 100 interlocks, and Address data for each interlock is arranged in a hierarchical configuration.

The builder screen is not normally displayed on the CRT 6, but is stored in a memory (not shown) as a table. The operator station body 3A is the controller 1
When the set interlock is detected based on the status signal 9 from, the stop mode corresponding to the interlock is selected from the builder screen. As a result of this selection, the operator station main body 3A generates an interlock screen (FIG. 3) displaying the interlock together with the selected stop mode.

Next, the generation of the interlock screen will be described in detail. After the interlock for activating each stop mode is set on the builder screen, if the operator station main body 3A detects, for example, the occurrence of the interlock for activating the normal stop by the status signal 9 from the controller 1, The interlock screen shown in FIG. 3 displaying both the normal stop and the interlock is displayed on the CRT 6.

Further, if it is determined from the interlock by the sequentially input state signal 9 that the abnormality of the plant spreads in a serious direction, the operator station main body 3A sets the stop mode to the first stop and the emergency stop. As you switch, add an interlock with each stop mode on the screen. As a result, it is not necessary to update the interlock screen each time an interlock occurs, and it is easy to add an interlock.

Embodiment 2 FIG. In the first embodiment, C
The case where the interlock screen is displayed on the RT 6 has been described. However, the interlock screen is formed on the touch panel, and the displayed interlock display portion is touched with an electronic pen or a finger, so that the controller corresponding to the interlock can display the screen. The A / D converted analog data (measured value 10) can be called as trend data from a memory (not shown) in the operator station main body 3A to display a linear graph and display the trend on the CRT 6 as a trend graph.

Next, the operation of the second embodiment will be described with reference to FIGS.
See details. Operator station body 3
A collects each analog data output from each controller 1 every 100 mmsec for 60 seconds, performs A / D conversion, and stores it as a trend data in a memory (not shown). If no abnormality of the plant indicated by the interlock is detected for 60 seconds, the stored contents of the memory are updated with newly collected analog data sequentially from the oldest stored contents, and the memory contents are updated every 60 seconds.

However, when updating and storing trend data,
If an abnormality of the plant is detected, 6
The trend data for 0 seconds is saved in another storage area of the memory, and the analog data is collected for 30 seconds every 100 msec after the abnormality is detected, A / D converted, and stored in the memory. In this way, if the trend data for 90 seconds is collected across the time of the occurrence of the plant abnormality, as shown in FIG. 4, the trend data for 60 seconds before the plant failure and the trend data for 30 seconds after the failure occurs are collected. Match trend data in memory. FIG. 4 shows a state in which the trend data for a total of 90 seconds before and after the occurrence of the plant abnormality is divided into the trend data for 10 seconds in units of 8 words and stored continuously in each memory area. The operator station main body 3A is
Read 90 seconds of trend data from memory and CR
At T6, the display is edited to display the trend graph. And
As shown in FIG. 5, a trend graph 60 seconds before the plant abnormality and 30 seconds after the plant abnormality is displayed on the CRT 6. As described above, according to the second embodiment, when an abnormality occurs on the plant side, the process up to the occurrence of the abnormality can be grasped for each interlock item, so that the cause of the abnormality can be understood in detail and analysis can be easily performed. It has the effect of becoming.

Embodiment 3 In the second embodiment, the case where the trend graph indicating the abnormal tendency of the plant is displayed on the CRT 6 as shown in FIG. 5 has been described.
The operation history (pump operation, valve operation, set value change) collected by the standard function of A and stored in the memory in a time-series manner can be displayed in a time-series manner in accordance with each elapsed time in the trend graph. .

If the operation history items are displayed in characters below the trend graph, a plurality of items may overlap at the same time, making it difficult to determine each item. Therefore, as shown in FIG. 7, at each time point, only the number specifying the item is displayed, and the operation time and the operation content corresponding to the displayed number are displayed in the right margin of the trend graph, for example, circles 2, 14: 24,
Displays that the setting value has been changed. As a result, by looking at the CRT screen, it can be estimated that the occurrence of an abnormality in the plant is related to, for example, a change in the temperature set value performed at 14:24.

As described above, according to the third embodiment,
Since the trend data and the operation content are linked on the same screen, there is an effect that the causal relationship between the operation of the plant and the abnormality can be estimated in a short time.

Embodiment 4 In the first to third embodiments, the case where the interlock display, the trend display, and the operation history are displayed on the CRT 6 has been described.
May be automatically printed and stored as a hard copy.

As a result, since the related information required for the analysis of the plant abnormality is collected and printed all at once, the abnormality analysis by the operator can be performed easily and quickly.

[0030]

According to the first aspect of the present invention, when a plurality of preset operation stop modes of the plant and a plurality of related information for starting the operation stop mode for each of the operation stop modes are manually input, Registering means for hierarchically arranging and registering a plurality of pieces of related information corresponding to the lower part of each operation stop mode; and updating the related information for starting the operation stop mode when the related information is sequentially updated and transmitted from the plant. Since each operation stop mode that starts in accordance with the related information provided and the screen display means that simultaneously displays each related information on one screen are provided, it is possible to provide the operator with the related information in an organized form in the event of an abnormality. There is an effect that abnormal measures can be taken.

According to the second aspect of the present invention, the registering means samples the measured analog data input from the plant at predetermined time intervals when monitoring the related information from the plant, unless the related information is transmitted. The update registration is repeated at predetermined time intervals, and when transmitting the relevant information, the analog data before and after transmitting the relevant information is registered as trend data, and the screen display means displays a trend graph on the screen based on the trend data. so,
Since the process leading to the occurrence of the abnormality can be grasped, there is an effect that the cause of the abnormality can be understood in detail and analysis can be facilitated.

According to the third aspect of the present invention, the screen display means displays the operation history of the plant in chronological order in accordance with the change of the trend graph, thereby shortening the causal relationship between the operation of the plant and the abnormality. There is an effect that estimation can be performed in time.

According to the fourth aspect of the present invention, when the operation stop mode of the plant occurs, the printing means for automatically printing and outputting the contents displayed on the screen display means is provided. Since the prints remain aligned and printed at once, there is an effect that the operator can easily and quickly analyze the abnormality.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a supervisory control device according to Embodiments 1 to 4 of the present invention.

FIG. 2 is a diagram showing a Hilda screen according to the first embodiment of the present invention.

FIG. 3 is a diagram showing an interlock screen according to the first embodiment of the present invention.

FIG. 4 is a diagram illustrating a controller processing method according to a second embodiment of the present invention.

FIG. 5 is a diagram showing a trend graph according to the second embodiment of the present invention.

FIG. 6 is a diagram showing a trend graph operation history window according to Embodiment 3 of the present invention.

FIG. 7 is a configuration diagram showing a conventional supervisory control device related to the present invention.

[Explanation of symbols]

1 Controller, 3A operator station main body, 4 keyboard, 5 mouse, 6 CRT, 7 Hard copy printer.

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Claims (4)

[Claims] When a plurality of preset operation stop modes of a plant and a plurality of pieces of related information for starting the operation stop mode are manually input for each of the operation stop modes, the mode corresponds to a lower part of each operation stop mode. A registration unit for hierarchically arranging and registering a plurality of related information, and, when the related information for activating the operation stop mode is sequentially updated and transmitted from the plant, the registration unit is activated according to the updated related information. An automatic data collecting apparatus comprising: a screen display unit for simultaneously displaying each operation stop mode and each related information on one screen. 2. The registration unit, when monitoring related information from the plant, samples measurement analog data input from the plant at predetermined time intervals unless the related information is transmitted, and updates and registers the analog data at a predetermined time period. Repeating the transmission of the related information, registering the analog data before and after the transmission of the related information as trend data, and the screen display means displays a trend graph on the screen based on the trend data. 1
Automatic data collection device according to 1. 3. The automatic data collection device according to claim 2, wherein the screen display unit displays the operation history of the plant in chronological order according to the change of the trend graph. 4. The automatic data collection according to claim 1, further comprising a printing unit that automatically prints out the contents displayed on the screen display unit when a plant operation stop mode occurs. apparatus.