JPH09167010A - Process monitor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make an abnormal state easy to understand and indicate it in impressive representation by enlarging and displaying the graphics, numerals or characters of a process and also displaying an abnormality content comment at the same time if the process becomes abnormal. SOLUTION: A display control part 8 is connected to a process signal information table means 11, a process flow-fixed display information table means 12, a process state changeable display information table means 13, and a process abnormal time changeable display information table means 14. Then signal information, fixed display information, stationary-time changeable display information, and abnormal-time changeable display information are read out of the process signal information table means 11, process flow-fixed display information table means 12, process state changeable display information table means 13, and process abnormal-time changeable display information table 14 and displayed on a CRT device 9. On an abnormal-time occurrence screen, the graphics is enlarged and displayed according to the registration contents of the process abnormal-time display changeable display information table and the abnormal content comment is displayed below the figure graphics.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to steel, petrochemical,
The present invention relates to a process monitoring device in any industrial plant such as paper pulp, food, food, electric power, and public.

[0002]

2. Description of the Related Art When monitoring and controlling a plant,
Normally, the CRT (Cold cathode ray tube) is displayed on the CRT as a process flow (working process) screen such as overall monitoring and a partial system showing an outline of the plant. The process flow screen has a fixed display part that shows the outline of the plant and a variable display part that shows the state and control status of the plant by changing the colors of figures, figures, and characters, and changing the shape. ,
The information is created in advance with a creation tool (means).

An operator (operator) monitors the operating state of the plant by observing the colors and shapes of the numerical values, figures and characters displayed on the process flow screen.

[0004]

The colors and shapes displayed in the process flow are determined based on certain unified program specifications. For example, a device is determined to be running and red / stopped green. In addition, another device is determined to be green for normal operation / red for abnormal operation.

As described above, even one color has a different meaning even if it is the same color as the color in normal operation and the color in abnormal operation,
It must be judged by the figures and characters expressed in the process flow.

Also, depending on the severity of the abnormality, it is difficult to convey the importance and urgency to the operator only by expressing the color.

In order to solve the above-mentioned problems, the present invention provides a process signal information table (storage device) required for supervisory control of a platen in a CRT having a man-machine interface (joint between human and equipment) for process monitoring, Process flow fixed display information, process status display variable display information table, process error display variable display information table, input means for inputting these information tables, and reading this information table to display the process status. A process monitoring device that performs real-time (instantaneous) data refresh (information update) due to process signal status changes on the displayed screen, and enlarges the figure or numerical value or character when a process error occurs and simultaneously displays the error content comment (evaluation) It is intended to be provided.

[0008]

A process monitoring apparatus according to the present invention is a CR for displaying a process monitoring state on a CRT screen.
A T device, a process signal information table means for accommodating and storing signal information of a process, a process flow fixed display information table means for accommodating and storing fixed display information in a process flow, and a stationary variable display information in a process. Process state variable display information table means for accommodating and saving, process abnormal variable display information table means for accommodating and saving abnormal time variable display information in the process, process signal information table means, process flow fixed display information table Means, a process state variable display information table means, and a process abnormal time variable display information table means, and a display control section for displaying the information on a CRT device. Further, the process monitoring device according to claim 2 has an abnormal occurrence history table function for storing and storing the date and time when each abnormality occurs, and an abnormality occurrence history search for searching the occurrence history for each abnormality. It is characterized by having functions and.
Further, in the process monitoring apparatus according to claim 3, the device replacement information table function of accommodating and storing the device replacement information and the failure occurrence history table function cause the device failure frequency to exceed a preset number of times. It is characterized by having an announcement function that outputs an alarm when it does.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of a process monitoring apparatus of the present invention will be described. In FIG. 1, 1 is a process controller for controlling a plant, and the process controller 1 is connected to a control transmission bus 2. Also, 3
Is a plurality of process monitoring devices arranged in parallel, and the process monitoring device 3 is also connected to the control transmission bus 2. Then, the process monitoring device 3 displays various process flow screens and setting screens for operating the plant on the CRT device 9 to support the operation of the operator.

A CPU 4 executes data processing.
(Central processing unit) 5 is a disk that stores the configuration of the entire plant, process signal information, and program information of the process flow screen, 6 is a main memory that stores arbitrary screen program information read from the disk 5, 7 Is a keyboard, 8 is a display control unit that reads the screen program information stored in the main memory 6 and converts it into a display command, and 9 is a CRT device that displays a screen according to commands from the display control unit.

The CRT device 9 is a device for displaying the process monitoring status on the CRT screen. The process signal information table means 11 is means for accommodating and storing process signal information. The process flow fixed display information table means 12 is means for accommodating and storing fixed display information in the process flow. The process state variable display information table means 13 is means for accommodating and storing the variable display information in the steady state in the process. The process abnormal variable display information table means 14 is a means for accommodating and storing the abnormal variable display information in the process. The display control section 8 is connected to the process signal information table means 11, the process flow fixed display information table means 12, the process state variable display information table means 13 and the process abnormal time variable display information table means 14, and the process signal information table means 11, Process flow fixed display information table means 12 and process state variable display information table means 13
The signal information, the fixed display information, the variable display information in the steady state, and the variable display information in the abnormal state are read out from the process abnormal variable display information table means 14, respectively, and read out.
Is a device to display.

In FIG. 2, reference numeral 20 is a variable display information table for display when a process is abnormal, and the registered contents are NO. (Number), signal name 22, process signal 23, display color 24, blinking 25, enlargement size 26, and abnormality content comment 27.

As an example, two items are registered.

FIG. 3 shows a normal state screen 38 according to the registered contents of the process abnormal display variable display information table 20, and FIG. 4 shows an abnormality occurrence state screen 49.

On the normal state screen 38, the pressure switch graphic 30 is displayed in a normal color when the gas source pressure is normal, and the air blower graphic 3 when the air blower is normal.
1 is also displayed in normal color.

In the abnormality occurrence screen 49, when the process signal 23 of the first item of the item means that the source pressure has dropped due to the registered contents of the variable display information table for process abnormality display 20, a display color 24, blinking 25, enlargement Size 2
6. Depending on the content of the abnormality content comment 27, the pressure switch graphic 42 blinks in red and is enlarged and displayed twice in length and width, and the abnormality content comment is displayed below the graphic.

The process signal 2 of the second item of the item
Similarly, when 3 means an air blower failure, the air blower graphic 43 is magnified three times vertically and horizontally without blinking in yellow, and the abnormality content comment is displayed below the graphic.

FIG. 5 and FIG. 6 explain the embodiment of claim 2.

In FIG. 5, reference numeral 54 denotes an abnormal occurrence history table which stores and stores the date and time when each abnormality occurs due to the function of the abnormal occurrence history table function. Further, in FIG. 6, reference numeral 65 is an abnormality occurrence history screen, which is an item prosecution button 66 or a date / time search button 67.
When is pressed, the abnormality occurrence history search function operates to check the occurrence history for each abnormality. Item No. of the variable display information table 20 for display during process abnormality shown in FIG. Save the year / month / day / hour / minute for each error. In addition, the abnormality occurrence history screen 65 displays the information in the abnormality occurrence history table 54 as CR.
It is displayed on the T device 9. Further, the item search button 66 has a function of searching for each item and displaying the screen, and the date search button 67 is a function of searching within the specified date range and displaying the screen, and the item search button 66 and the date search button. 67 can be used individually or in combination. As described above, according to this embodiment, it becomes possible to investigate past abnormal states and grasp future trends. 7 and 8 explain an embodiment of claim 3.

In FIG. 7, reference numeral 78 shows a device exchange information table for accommodating and storing the device exchange information by the function of the device exchange information table function. In FIG. 8, 89 is a CRT screen, and 84 is a device replacement announcement window that outputs an alarm when the number of device failures by the announce function exceeds a preset number of times. That is, the device replacement information table 78 is registered in the item N of the variable display information table 20 for display during process abnormality shown in FIG.
O. For each time, the failure frequency detection 79, the frequency 70, the failure interval detection 71, the time ratio 72, and the announcement comment 73 are displayed.

As an example, the registered contents are item No.
Regarding No. 1, since the output of the announcement comment 73 is unnecessary for monitoring the source pressure of the gas, the failure frequency detection 79 is not performed and the failure interval detection 71 is not performed. Item No.
For No. 2, since the announcement comment 73 regarding the failure of the air blower is output, the failure frequency detection 79 is executed and the reference frequency is registered in the frequency 70. Further, since the output by the failure interval detection is also used, the failure interval detection 71 is executed and the ratio of the first failure occurrence interval to the time is registered in the time ratio 72.

In the announcement comment 73, the comment displayed in the device replacement announcement window 84 of FIG. 8 is registered.

FIG. 8 shows a state in which the device exchange announcement window 84 is interrupt-displayed on the screen currently displayed on the CRT device 9.

As described above, according to the present embodiment, it is possible to review the parameters of the control system and easily manage the reference of the replacement time of the equipment.

[0025]

As described above, according to the present invention, it becomes possible to convey an abnormal state of a process to an operator in an easy-to-understand manner and with a high-impact expression.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a process monitoring device showing an embodiment of the present invention.

FIG. 2 is a configuration diagram of a variable display information table for display when a process is abnormal.

FIG. 3 is an explanatory diagram of a normal state screen according to registered contents of a variable display information table for display during process abnormality.

FIG. 4 is an explanatory diagram of an abnormality occurrence state screen based on the registered contents of the variable display information table for display during process abnormality in FIG. 3;

FIG. 5 is a configuration diagram of an abnormality occurrence history table showing an embodiment of claim 2;

FIG. 6 is an explanatory diagram of an abnormality occurrence history screen.

FIG. 7 is a configuration diagram of a device exchange information table showing an embodiment of claim 3;

FIG. 8 is an explanatory diagram of a device replacement announcement window.

[Explanation of symbols]

 1 Process Controller 2 Control Transmission Bus 4 CPU 8 Display Control Section 9 CRT Device 11 Process Signal Information Table Means 12 Process Flow Fixed Display Information Table Means 13 Process State Variable Display Information Table Means 14 Process Abnormal Variable Display Information Table Means

Claims (3)

[Claims] 1. A CRT device for displaying a process monitoring state on a CRT screen, a process signal information table means for accommodating and storing signal information of the process, and fixed display information for the process flow. Process flow fixed display information table means, process state variable display information table means for accommodating and storing steady state variable display information in the process, and process abnormal variable for accommodating and storing abnormal time variable display information in the process Display information table means, display for reading out information from the process signal information table means, process flow fixed display information table means, process state variable display information table means, and process abnormal variable display information table means and displaying them on the CRT device. A control unit,
A process monitoring device comprising: 2. An abnormality occurrence history table function of accommodating and storing the date and time of occurrence of each abnormality occurrence, and an abnormality occurrence history search function of searching an occurrence history of each abnormality. The process monitoring device according to claim 1. 3. A device replacement information table function for accommodating and storing device replacement information and an alarm when the failure frequency of the device exceeds a preset number of times by the abnormality occurrence history table function. 3. The process monitoring apparatus according to claim 1 or 2, further comprising an announcement function.