JPH04307898A - Information display and inspection unit - Google Patents

Abstract

PURPOSE:To improve the reliability without hands in the field by providing a panel part for information display, a keyboard part for display indication, a data interface card, and an interface connector. CONSTITUTION:When a display request of alarm information is inputted from a keyboard part 25B of an information display and inspection unit 25, the request is transmitted to an on-line monitor and maintenance control card 22, and the card 22 transmits it to a data interface card 25C of the unit 25. When this alarm information is given to the data interface 25C, this interface 25C displays it on a panel part 25A after processing it so that it can be displayed on the panel part 25A. When TAG No. indiocating field apparatus are inputted from the keyboard part 25B, process values, set values, and states or these apparatus are displayed on the panel part 25A. When process values or the like are inputted to field apparatus from the keyboard part 25B, the state change of field apparatus is displayed on the panel part 25A.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] The present invention relates to an information display/inspection unit that can be incorporated into a distributed process control device installed at a site that controls field equipment for plant instrumentation, and particularly relates to a central monitoring control panel. The present invention relates to an information display/inspection unit that makes it possible to easily confirm and inspect the status of field equipment and alarm information on-site without requiring manpower and time.

0002

[Prior Art] Conventionally, when monitoring alarm information values indicating the status of field equipment in various plants, workers at the field could not check it on-site, and Monitoring is done using a CRT etc. installed in the central monitoring and control panel. Furthermore, even when inspecting on-site equipment, process values, etc. must be checked using a central monitoring equipment panel located far from the on-site location. However, such monitoring and inspection methods have the following problems.

(a) Since patrollers and workers on site cannot check the process status or alarm generation status at the site, they have to go all the way back to the central monitoring and control panel, which is extremely troublesome.

(b) When inspecting on-site equipment, since the information is checked on a remote central monitoring and control panel, it is necessary to have workers at two locations, one on-site and one in the center, communicating with each other while carrying out inspections. , one worker works on site and in the center.
It requires a lot of manpower and time as it has to go from one place to another.

[0005]

[Problems to be Solved by the Invention] As described above, in the conventional monitoring and inspection methods, checking and inspecting the status of field equipment and alarm information requires manpower and time, and is not easy to perform. There was a problem.

An object of the present invention is to provide an extremely reliable system that can easily check and inspect the status of field equipment and alarm information at the field without requiring a central monitoring control panel and without requiring much manpower or time. The objective is to provide a highly accurate information display/inspection unit.

[0007]

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a communication control card, an online monitoring/maintenance control card, a control card, and a process input/output card, which are connected to each other by an internal bus. The information from the central monitoring control panel is sent to the online monitoring/maintenance control card via the communication control card, and the information is processed by the control card and process input/output card to control the field equipment and control the field equipment. Saves equipment status to online monitoring/maintenance control card via control card, process input/output card,
An information display/inspection unit that outputs to a central monitoring and control panel and can be incorporated into distributed process control equipment installed at the site, includes a panel section that displays the status of on-site equipment and information from the central monitoring and control panel, and A keyboard unit that inputs information to be transmitted to the computer and instructs the display of alarm information, etc., a data interface card that displays and processes information from the online monitoring/maintenance control card so that it can be displayed on the panel unit, a panel unit, and a keyboard unit. Department,
and a data interface card, and an interface connector that allows connection to the online monitoring/maintenance control card.

[0008]

[Operation] Therefore, the information display/inspection unit of the present invention:
When checking and inspecting the status of field equipment and alarm information, by connecting the interface connector to the online monitoring/maintenance control card,
It is integrated into distributed process control equipment installed on-site. Next, when a request to display alarm information is input from the keyboard section, the request is transmitted to the online monitoring/maintenance control card, and the online monitoring/maintenance control card transmits the alarm information to the data interface card. Then, the interface card that received the alarm information processes this information so that it can be displayed on the panel section, and displays it on the panel section. on the other hand,
TAG showing on-site equipment from the keychain section. When No is input, the process values, setting values, and status of the corresponding device are displayed on the panel section. Further, when a process value or a setting value is inputted to a specified field device from the keyboard section 2, a change in the state of the field device is displayed on the panel section. This makes it possible to easily check and inspect the status of field equipment and alarm information on-site without the need for a central monitoring and control panel.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a block diagram showing an example of the overall configuration of a system to which the information display/inspection unit according to the present invention is applied. In FIG. 2, this system includes a central monitoring control panel 1 installed in the center, a distributed process control device 2 installed at the site, and field equipment at the site controlled by the distributed process control device 2 ( (pump, valve, etc.) 3.

The distributed process control device 2 also includes a communication control card 21, an online monitoring/maintenance control card 22, a control card 23, and a process input/output card 24, which are connected to each other by an internal bus 20. The information display/inspection unit 25 of the present invention is provided.

[0012] Here, the communication control card 21
is used to relay communication with the central monitoring and control panel 1. Further, the online monitoring/maintenance control card 22 monitors the control card 23 and collects and stores information. Furthermore, the control card 23 performs continuous control processing, sequence control processing, and the like. Furthermore, the process input/output card 24 performs process input/output processing.

That is, this distributed process control device 2
sends information from the central monitoring control panel 1 to the online monitoring/maintenance control card 22 via the communication control card 21, and processes this information with the control card 23 and process input/output card 24 to control the on-site equipment. 3, and the status of the field equipment 3 is controlled by the control card 23 and process input/output card 24.
The information is stored in the online monitoring/maintenance control card 22 and output to the central monitoring and control panel 1 via the online monitoring/maintenance control card 22.

Next, FIG. 1 shows the information display/inspection unit 2.
5 is a block diagram showing a configuration example of No. 5; FIG. That is, the information display/inspection unit 25 includes a panel section 25A, a keyboard section 25B, and a data interface card 25C.
and an interface connector 25D.

[0015] Here, the panel section 25A is used for the field equipment 3.
The status of the system and information from the central monitoring and control panel 1 are displayed. Further, the keyboard section 25B is used to input information to be transmitted to the field equipment 3 and to instruct display of alarm information and the like. In addition, data interface card 2
5C performs display processing so that information on the online monitoring/maintenance control card 22 can be displayed on the panel section 25A. As shown in FIG. 3, this data interface card 25C includes a ROM 25C1,
It consists of an arithmetic and control unit 25C2. Furthermore,
The interface connector 25D includes a panel portion 25A,
This allows the keyboard section 25B and data interface card 25C to be connected to the online monitoring/maintenance control card 22. Next, the operation of this embodiment configured as above will be explained using the flow diagram shown in FIG. 4.

Now, when checking and inspecting the status and alarm information of the field equipment 3, the interface connector 25D of the information display/inspection unit 25 is connected to the online monitoring/maintenance control card 22, so that it can be installed at the field. Distributed process control device 2
Incorporate into.

Next, in this state, when a request to display alarm information is input from the keyboard section 25B of the information display/inspection unit 25, the request is transmitted to the online monitoring/maintenance control card 22, and the online monitoring/maintenance control card 22 is notified of the request. The control card 22 transmits alarm information to the data interface card 25C of the information display and inspection unit 25. Then, the data interface card 25C that received this alarm information processes this information so that it can be displayed on the panel section 25A, and displays it on the panel section 25A.

On the other hand, TAG. If No is input, the process value, setting value, and status (opening/closing of a valve, etc.) of the corresponding device are displayed on the panel section 25A. In this case, not only digital values but also analog values are displayed in a bar format. In addition, the field equipment 3 specified from the key fob section 25B of the information display/inspection unit 25
When a process value or set value is inputted to , state changes such as opening and closing of valves of field equipment 3 are displayed on the panel section 25A.

When the status and alarm information of the field equipment 3 controlled by the distributed process control device 2 has been confirmed and inspected in this manner, the information display/inspection unit 25 is displayed on the distributed process control device 2. Remove from
It will be installed in another distributed process control device 2 and checked and inspected in the same way.

As mentioned above, in this embodiment, the internal bus 2
The communication control card 21, the online monitoring/maintenance control card 22, the control card 23, and the process input/output card 24 are connected to each other by the central monitoring control panel 1. The information is sent to the online monitoring/maintenance control card 22 via the control card 23 and the process input/output card 24 to control the field equipment 3, and the status of the field equipment 3 is transmitted to the control card 23 and the process input/output card 24. A distributed process control device 2 installed in the field saves to the online monitoring and maintenance control card 22 via the process input/output card 24 and outputs to the central monitoring and control panel 1.
An information display/inspection unit 25 that can be incorporated into a panel section 25A that displays the status of field equipment 3 and information from the central monitoring control panel 1, and a panel section 25A that can be used to input information to be transmitted to field equipment 3 and display alarm information. Keyboard section 2 for instructing display of etc.
5B, a data interface card 25C that displays and processes the information of the online monitoring/maintenance control card 22 so that it can be displayed on the panel section 25A, and the panel section 25A, keyboard section 25B, and data interface card 25C for online monitoring/maintenance. It is constructed from a control card 22 and an interface connector 25D that enables connection.

Therefore, without the need for the central monitoring control panel 1 as in the past, the input/output status of the field equipment 3 and alarm information can be checked using only the distributed process control device 2 and equipment installed at the field. and inspection can be carried out extremely easily on site. This eliminates the need for one worker to go back and forth between the central and on-site locations, or for two workers to communicate with each other, which was the case in the past, significantly reducing time and , it is possible to reduce manpower. In addition, since the information display/inspection unit 25 can be removed from the distributed process control device 2,
It becomes possible to check and inspect the condition of the equipment 3 at each site from the stand.

[0022]

[Effects of the Invention] As explained above, according to the present invention, there is a panel section for displaying the status of field equipment and information from the central monitoring control panel, and a panel section for inputting information to be transmitted to field equipment and for transmitting alarm information, etc. A keyboard section that instructs the display, a data interface card that displays and processes information from the online monitoring/maintenance control card so that it can be displayed on the panel section, and an online monitoring/maintenance control section that controls the panel section, keyboard section, and data interface card. Since the configuration is equipped with an interface connector that allows connection to the card, there is no need for a central monitoring control panel, and checking and checking the status of field equipment and alarm information can be done on-site without requiring manpower and time. An extremely reliable information display/inspection unit that can be easily performed can be provided.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of an information display/inspection unit according to the present invention.

FIG. 2 is a block diagram showing an example of the overall configuration of a system to which the information display/inspection unit according to the present invention is applied.

FIG. 3 is a block diagram showing the flow of signals within the data interface card in the same embodiment.

FIG. 4 is a flow diagram for explaining the operation in the same embodiment.

[Explanation of symbols]

1...Central monitoring control panel, 2...Distributed process control device, 2
0... Internal bus, 21... Communication control control card, 2
2...Online monitoring/maintenance control card, 23...Control card, 24...Process input/output card, 25...Information display/inspection unit, 25A...Panel section, 25B...Keyboard section, 25C...Data interface card, 25D...Interface connector, 3
...Field equipment.

Claims (1)

[Claims] 1. A communication control card, an online monitoring/maintenance control card, a control card, and a process input/output card, which are connected to each other by an internal bus, and which transmit information from a central monitoring control panel to the communication control card. The information is sent to the online monitoring/maintenance control card via the control card and the process input/output card, and the information is processed by the control card and process input/output card to control the field equipment. In an information display/inspection unit that can be incorporated into a distributed process control device installed at a site, the information display/inspection unit stores information in the online monitoring/maintenance control card via the online monitoring/maintenance control card and outputs it to the central monitoring and control panel. A panel section that displays information from the monitoring control panel, a keyboard section that inputs information to be transmitted to the field equipment and instructs display of alarm information, etc.;
a data interface card that displays and processes information on the maintenance control card so that it can be displayed on the panel; and an interface connector that allows the panel, keyboard, and data interface card to be connected to the online monitoring/maintenance control card. An information display/inspection unit comprising: