JPH09230925A - Plant monitor screen display program start device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save the labour to generate and test a state change analytic program which starts a screen display program that makes a CRT display an image on its screen in a plant centralized monitor system according to the changes of a plant facility state signal. SOLUTION: The 3rd and 4th digits of the name 10 of the plant facility state signal are assigned for an in-plant place code, the 5th and 6th digits are assigned for an in-facility signal serial number, and part (3rd - 6th digits) of the name 10 of the state signal and part (2nd - 5th digits) of the name 20 of a corresponding plant monitor screen display program are given the same constitution. Therefore, when the state signal changes, the state analytic program calls the name 10 of the plant facility state signal from the address of the mount position of the signal input part through another table, takes the 3rd - 6th digits of the name 10 out and adds 'K' at the head to generate the name 20 of a screen display program, and starts this screen display program immediately.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for centrally monitoring plant equipment by using a computer, and an apparatus for activating a program for displaying a screen for plant monitoring on a CRT or the like according to a change in the equipment.

2. Description of the Related Art FIG. 3 shows an example of a plant monitoring screen definition table provided in the system for automatically displaying a CRT for centralized monitoring of plant equipment according to changes in plant equipment state signals. The plant monitoring screen definition table 3 is a table in which the name 1 of each plant equipment state signal and the name 2 of the program that displays the screen of the CRT by the change of this signal are associated with each other. As shown in the figure, the name 1 of the status signal of the plant equipment is an abbreviated name using alphanumeric characters, and the name 2 of the plant monitoring screen display program is an abbreviation using alphanumeric characters. Is used. When the plant equipment status signal changes, the status change analysis program provided in the system retrieves the status signal name 1 from another table, and then refers to the plant monitoring screen definition table 3 in FIG. The name 2 of the plant monitoring screen display program corresponding to the name 1 of 1. is searched, and this screen display program is activated to display the screen corresponding to the CRT. In this way, the plant monitoring screen definition table 3 is used, and the plant monitoring screen is automatically CR when the status signal changes.
Display on T.

However, in such an automatic display method of the plant monitoring screen, a mistake may occur when the table 3 is manually created. When the number of status signals increases in a large-scale plant, the variation in the CPU processing time for searching the table 3 becomes large, so that the display of the monitoring screen on the CRT becomes slow on average. There is. Therefore, the present invention provides a plant monitoring screen display program starting device for omitting the operation test for all such status signals and shortening the delay time of displaying the monitoring screen on the CRT to be constant. Is an issue.

In order to solve the above-mentioned problems, the plant monitoring screen display program starting device according to claim 1 responds to this status signal in response to a change in the status signal indicating the status of the plant equipment. In the centralized plant monitoring system that activates the screen display program that causes the CRT to display the corresponding screen for plant monitoring, the table is searched from the change in the received status signal and the name of this status signal (10) At the same time, the name (20) of the screen display program corresponding to this status signal is generated from the obtained name of the status signal without searching the table, and this screen display program is started. Further, in the plant monitoring screen display program starting device according to claim 2, in the device according to claim 1, a part of the name of the status signal (third part).
To 6th digit) and a part of the name of the screen display program corresponding to this state signal (2nd to 5th digit) are commonly configured. The operation of the present invention is as follows. That is, by matching a part of the abbreviated name of the status signal with a part of the abbreviated name of the display program of the plant monitoring screen, the name of the screen display program is immediately obtained from the status signal, and this screen display program is obtained. The conventional table 3 itself for defining the relationship between the status signal name 1 and the screen display program name 2 is not required.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a configuration example of names of plant equipment status signals and names of plant monitoring screen display programs as an embodiment of the present invention. As shown in this figure, the plant equipment status signal name 10 is composed of two alphabetic characters (two digits) (“DI” in this example) as the first symbol and a code of the place where the plant equipment related to this status signal is installed. Two digits of the location code in the plant (“01” in this example),
Two digits of the equipment classification code (“02” in this example) as a code for distinguishing this plant equipment and two digits of the in-equipment signal serial number as the number of this status signal in this equipment (“03” in this example). )). In addition, the plant monitoring screen display program name 20 is one alphabetic character (one digit) (“K” in this example) as the first symbol and two digits in the plant location code that compose the name of the status signal corresponding to this program. Similarly, it is composed of a two-digit equipment classification code. FIG. 2 is a flow chart showing the procedure of processing of the state change analysis program that activates the plant monitoring screen display program. Explaining the figure, the plant equipment status signal that has changed status is taken into the system at the address of the card mounting position of the signal input section, and the step 3
It is converted into the abbreviated plant equipment status signal name 10 (that is, the status signal name 10 is searched) by referring to the table created separately in the processing of No. 1. Next step 32
The third to sixth digits of the name 10 are extracted by the processing of. Therefore, in the case of the status signal name 10 shown in FIG. 1, "0102" is taken out. Next, in the process of step 33, the character "K" is added to the leading digit of the extracted code portion to form the plant monitoring screen display program name 20. With the name 20 of this screen display program, the plant monitoring screen display program of this name is started in the processing of step 34.

According to the present invention, a part of the name of the plant equipment status signal becomes a part of the name of the plant monitoring screen display program corresponding to the status signal. Based on the change, the plant monitor screen display program corresponding to this status signal can be immediately activated to display the screen on the CRT. Also,
A table that defines the relationship between the status signal and the screen display program, which has been used in the past, is not necessary, and therefore the table creation work and the operation test itself related to this table are also unnecessary.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a plant facility status signal name and a plant monitoring screen display program name corresponding to the status signal according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a processing procedure of a state change analysis program that also activates the plant monitoring screen display program.

FIG. 3 is a diagram showing a configuration example of a conventional plant monitoring screen definition table.

[Explanation of symbols]

 10 Plant equipment status signal name 20 Plant monitoring screen display program name

Claims (2)

[Claims] 1. Centralized plant monitoring that activates a screen display program corresponding to a status signal indicating the status of plant equipment and causes a CRT or the like to display the corresponding screen for plant monitoring. In the system, the table is searched from the change of the received status signal to obtain the name of this status signal, and the name of the screen display program corresponding to this status signal is not searched from the table based on the change of the obtained status signal. A plant monitoring screen display program start-up device, which is generated by starting the screen display program. 2. The plant according to claim 1, wherein a part of the name of the status signal and a part of the name of the screen display program corresponding to the status signal are configured in common. Monitoring screen display program activation device.