JPH0869315A - Data display method and plant monitor controller - Google Patents

Abstract

PURPOSE: To enhance the operability of a screen by immediately displaying data even when the screen takes much data collection time when an original screen is displayed again after the changeover of the screen. CONSTITUTION: In the data display method for the plant monitor controller provided with a data display device 1, a data collection processing unit 2, and a data storage buffer device 4, at least a device information screen group is provided on the display screen and data required for the device information screen are provided by a plant peripheral equipment collecting the device data 3 via the data collection processing unit 2 as required and displayed on the data display device 1. The device data 3 are stored in the data storage buffer 4, the display screen of the data display device 1 is selected and restores to the original device information screen, stored data 5 in the data storage buffer device 4 are called as preceding data and displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data display method for a plant monitoring control device, and in particular, data including maintenance information for facilitating operation and maintenance by collecting device data from equipment installed in a plant. The present invention relates to a display method and a plant monitoring control device thereof.

[0002]

2. Description of the Related Art In recent years, field devices such as monitoring and control devices installed in plants have become more intelligent,
It is becoming increasingly common to apply fieldbuses to collect various data from the field. As a result, the data display method of the plant monitoring control device also displays the field device information of the monitoring control device along with the plant monitoring control screen group that provides convenience for plant operation, and the device information screen that provides convenience for plant operation and maintenance. Are configured so that they can be displayed by switching to the data display device.

The data display method conventionally used in such a data display device is such that, when necessary, the plant monitoring control screen, the device information screen, and the screen are displayed on the data collection processing device each time necessary data is acquired. Data was collected from the related field devices via the data display device.

[0004]

In the prior art, as described above, a method for collecting necessary data from the related field equipment via the data collecting and processing device each time and displaying the data on the data display device is described below. , There are the following problems. (1) When data collection takes a very long time, the data cannot be displayed on the data display device until the screen is switched and the data is collected. (2) If the refresh time for collecting data from the field device is longer than the time until the data is displayed again on the data display device after switching screens, or if the collected data has a fixed value, the The data is not displayed on the data display device until the data is collected, and the operability is poor.

The present invention has been made in view of the above points, and an object thereof is to solve the above-mentioned problems and to redisplay the original screen after switching the screen. However, it is an object of the present invention to provide a data display method capable of displaying data immediately and improving the operability of the screen, and a plant monitoring control device therefor.

[0006]

In order to achieve the above object, in the first invention, in a data display method of a plant monitoring control apparatus comprising a data display device, a data collection processing device and a data storage buffer device, The display screen has at least a device information screen group, and the data of this device information screen collects device data from the plant peripheral device via the data collection processing device as needed and displays it on the data display device, as well as the data storage buffer device. Device data is stored in, and when the display screen of the data display device is switched and the original device information screen is displayed again, the saved data stored in the data save buffer device is called as the previous value data,
This shall be displayed.

According to the second aspect of the invention, in a plant monitoring and control apparatus provided with a data display device, a data collection processing device, and a data storage buffer device, the display screen has at least a device information screen group, and if necessary, Equipment data collection means for collecting equipment data from the equipment peripherals of equipment on the equipment information screen via a data collection processing device, and displaying the collected equipment data on a data display device and storing the equipment data in a data storage buffer device. And a display means for switching the display screen of the data display device and returning to the original device information screen, recalling the saved data stored in the data saving buffer device as previous value data and displaying it. I shall.

Further, the save data stored in the data save buffer device has a flag for setting whether or not each data can be displayed on the data display device, and the display screen of the data display device is switched to return to the original device information screen. At this time, the original device information screen is a data group that calls and displays the stored data that is set to be displayable, and a data group that is set to display or not and that data is collected and displayed via the data collection processing device each time, Shall consist of

[0009]

With the above procedure and configuration, in the present invention, when the display screen of the data display device is switched and the original device information screen is displayed again, the saved data stored in the data save buffer device is called as the previous value data. , Display this. As a result, it takes a long time to collect the device data from the plant peripheral devices, and in the conventional technology, nothing was displayed on the data display device, which gave the operator a feeling of discomfort. Although the device information screen is the previous value data, the device information screen is displayed, and then the device information screen is refreshed by the device data collected from the data collection processing device. At the same time, by storing this device data in the data storage buffer device, even when another screen is displayed and the original device information screen is displayed again, the refreshed device data (saved data) is replaced with the previous value data. You can call it and display it quickly.

Among the data on these device information screens, variable data requiring accurate information such as failure information of the device is required to be displayed on the data display device. However, the data can be collected and displayed via the data collection processing device each time, and the fixed data can be quickly displayed and the variable data can be displayed as accurate information on the data display device.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view for explaining a data display method of a plant supervisory control device according to one embodiment of the present invention, and FIG. 2 is an explanatory view for explaining a fixed data group and a variable data group on a device information screen. . FIG. 1 shows a configuration of essential parts relating to a data display method in a plant monitoring control apparatus according to one embodiment.
Is a data display device, 2 is a data collection processing device for collecting device data from field devices arranged around the plant, 3 is device data collected by the data collection processing device 2, and 4 is this device data 3 The device data 3 which is a data storage buffer device and is stored in the data storage buffer device 4 is called as the storage data 5 by the data display device 1 and is displayed as previous value data.

Data display device 1 of plant monitoring control device
Has two main functions. One of them is a group of plant monitoring control screens for operating / monitoring the plant itself, and the other one is deeply involved in the present invention, and various equipments installed around the plant, for example,
There are a device information screen group for displaying information such as sensors, various operation ends, various auxiliary devices and other device information and operating status.

During normal plant operation / monitoring control,
The data display device displays a plant monitoring control screen group in which data is constantly updated to facilitate plant monitoring control. In addition, if necessary, at the time of maintenance and management of the plant, by collecting the device information used for monitoring and controlling the plant and displaying this device information screen group on the data display device, it is possible to maintain and manage the plant. Giving convenience.

Generally, most of the data used for the plant monitoring control screen group is individual data from a sensor or the like which changes momentarily, and the data is collected at high frequency. Also,
The data of the device information screen group is individual device information such as sensors arranged in the plant, operating ends, and accessories such as blowers.On the other hand, this information requires high speed such as failure information. However, there is variable data that changes from moment to moment, and on the other hand, there is a large amount of fixed information unique to the device, and in response to a call from the data display device or the data collection processing device as necessary, a large amount of information or data is relatively large. There is fixed data that is transmitted over time.

The fixed information peculiar to a device includes, for example, a device model for identifying the device and facilitating management, a device number of the device,
The TAG number that is named in relation to the plant, and if the device is, for example, a sensor, its range range and measurement unit (system), address number, revision number of the installed software, etc. There is fixed data specific to the device. These fixed data are constant fixed data unless the peripheral equipment of the plant is replaced or the range range of the measurement target is changed due to the characteristics of the plant.

Further, the maintenance information for the field devices arranged in the plant is rarely judged only by the device information of each device alone, but it is often judged by integrating various device information related to the plant. It is often easier to maintain and manage individual device information by collecting device information screens for each device. Therefore, the data of the device information screen group is redisplayed by switching many times during maintenance.

As described above, by displaying the device data 3 collected through the data collection processing device 2 on the data display device 1 and storing the device data 3 in the data storage buffer device 4, the data display device 1 When the display screen is switched to return to the original device information screen again, the original device information screen can be quickly displayed by calling the saved data 5 from the data saving buffer device 4.

FIG. 2 is an explanatory view for explaining the fixed data group 6 and the variable data group 7 displayed on the data display device 1. The data of the device information screen displayed on the data display device 1 is, for example, a device number (a to d) unique to the device such as a device number of the device or a version management number of software installed in the device. There are a data group 6 and a variable data group 7 composed of device data (e to h) indicating a device operating state that requires timely information such as failure information of the device. The former fixed data group 6 and the like are set to be displayable on the data display device 1, and the latter variable data group 7, for example, displays different data instantaneously due to operation and maintenance. In order to prevent the operator from making an erroneous determination / erroneous operation, whether or not to display the data on the data display device 1 is set, and each time the data is collected / displayed via the data collection processing device 2 to the operator. Information can be provided promptly and accurately.

[0019]

As described above, according to the present invention, it is possible to immediately display the previous value data on the data display device even in a screen which takes a very long time to collect data in the re-display after the screen switching. Thus, the operability of the screen can be improved without giving the operator a feeling of strangeness such as no screen display.

Further, by setting whether or not the previous value display is possible, the validity of the displayed data can be maintained and the operator's erroneous judgment and erroneous operation can be prevented.

[Brief description of drawings]

FIG. 1 is an explanatory diagram illustrating a data display method of a plant monitoring control device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating a fixed data group and a variable data group of a device information screen.

[Explanation of symbols]

 1 data display device 2 data collection processing device 3 equipment data 4 data storage buffer device 5 storage data 6 fixed data group 7 variable data group a to h data

Claims (3)

[Claims] 1. A data display method for a plant monitoring control device comprising a data display device, a data collection processing device, and a data storage buffer device, wherein the display screen has at least a device information screen group, The data of the information screen, if necessary, collect equipment data from the plant peripheral equipment via the data collection processing device and display the data on the data display device,
When storing the device data in the data storage buffer device, switching the display screen of the data display device, and returning to the original device information screen again, the stored data stored in the data storage buffer device is used as the previous value data. A data display method characterized by calling and displaying this. 2. A plant monitoring control device comprising a data display device, a data collection processing device, and a data storage buffer device, wherein the display screen has at least a device information screen group, and if necessary, Equipment data collection means for collecting equipment data from equipment peripherals through the data collection processing device, data of the equipment information screen, and displaying the collected equipment data on a data display device, and at the same time in the data storage buffer device. A storage means for storing device data and a display screen of the data display device are switched, and when returning to the original device information screen again, the saved data stored in the data save buffer device is called as the previous value data, and this is called. A plant monitoring and control device comprising: display means for displaying. 3. The plant monitoring control apparatus according to claim 2, wherein the stored data stored in the data storage buffer device has a flag for setting whether to display the data on the data display device for each data. When switching the display screen of and returning to the original device information screen again, the original device information screen is set with a data group that calls and displays the saved data that is set to be displayed, and whether or not to display the data. And a data group for collecting and displaying data via a data collection processing device, and a plant monitoring control device.