JPH03288905A - Process display device - Google Patents

Abstract

PURPOSE:To improve operability by automatically displaying the picture names, picture numbers or sequence step positions of plural sequence block figures under advancing on a CRT device. CONSTITUTION:This process display device 13 is composed of a computer 1 to execute the display control processing of a sequence state, CRT device 2 to display the sequence state and input device 6. Then, the picture numbers, picture names or sequence step positions currently under advancing of the sequence block diagrams showing a sequence currently under advancing are successively retrieved and these plural retrieved picture numbers, picture name or sequence step positions are simultaneously displayed through an output control means 8 to the CRT device 2. Thus, the labor of an operator for searching the sequence block diagram under advancing can be saved and operational efficiency is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a process display device for displaying process status.

(Prior Art) Process display devices are used in industrial plants to display the sequence progress status of the plant and to judge the process status. The sequence refers to a procedure in which plant control is sequentially performed while determining the operating state of the plant, and is, for example, a procedure in which the plant is sequentially started on the condition that a plant startup switch is turned on.

An example of a conventional process display device will be described with reference to FIG.

As shown in FIG. 13, this process display device is comprised of a computer 1 that performs sequence state display control processing, a CRT device 2 that displays sequence states, and an input device 6.

In the computer 1, sequence state data output from a control unit W3 that performs plant control is sampled at a predetermined period via a sequence state input control unit 4, and the latest sampled sequence state data is stored in a sequence state storage area 5. is memorized.

From the input device 6, the operator notifies the output control means 8 via the input control means 7 of a request to display a sequence block diagram arbitrarily designated from among the plurality of sequence block diagrams, and the sequence state in the sequence state storage area 5 is sent to the output control means 8. A sequence block diagram is displayed on the CRT device 2.

In conventional process equipment such as those described above, for example, as a sequence progresses, an operator redisplays the sequence block diagram. Further, even when a plurality of sequences are progressing simultaneously, the operator selects and displays the sequence block diagram to be monitored from among the many sequence block diagrams.

(Problems to be Solved by the Invention) However, such conventional devices have the following problems. That is, when displaying a sequence block diagram that is currently in progress, the operator must select the sequence block diagram that is currently in progress from among a number of sequence block diagrams. Additionally, when a sequence block diagram was displayed, there was a problem that when multiple sequences were in progress, it was not possible to know to what block the other sequences had progressed until the other sequence block diagrams were displayed. .

The present invention was made to solve the problems faced by conventional process display devices, and its purpose is to enable an operator to easily specify and display a sequence block diagram currently in progress, An object of the present invention is to provide a process display device in which a plurality of sequence blocks can be recognized even while displaying a sequence block diagram or other monitoring screen.

[Structure of the invention]

(Means for Solving Problem 'i11) In order to achieve the above object, the present invention provides a sequence block indicating a sequence currently in progress in a process display device that inputs a sequence status from a control device and displays the sequence status. means for searching at any time for the screen number 9 screen name or the currently progressing sequence step position in the diagram;
The screen number of the searched screen number 2 screen name or sequence step position is characterized by being equipped with a means for simultaneously outputting a plurality of screen names or sequence step positions to an output device, and also inputting the sequence status from the control device and inputting the screen number of the sequence block diagram currently in progress. 2 Screen number of a sequence block diagram in a process display device that displays the screen name or the position of the sequence step currently in progress.

The present invention is characterized by comprising a means for displaying a specified sequence block diagram by specifying a position where a screen name or a sequence step position is displayed using an input device, and further comprising a means for displaying a specified sequence block diagram by specifying a position where a screen name or sequence step position is displayed. , in a process display device that displays process status,
The present invention is characterized by having means for displaying the progress status of the plant sequence on the screen at the same time as the system diagram, sequence block diagram, or alarm message screen.

(Operation) Therefore, according to the present invention, screen name 1 of the sequence block diagram currently in progress corresponding to the sequence progress state
The screen number or sequence step position is automatically displayed and updated on the CRT device, and by specifying the position where the screen number or sequence step position is displayed with the input device, the specified sequence block diagram can be displayed on the CRT device. Display on the device. At this time, the display of the section name 2 screen number or sequence step position of the sequence block diagram currently in progress on the screen of the CRT device and the display of the monitoring screen such as the sequence block diagram are displayed so as not to overlap.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a process display device according to an embodiment of the present invention. Note that the same parts as in FIG. 13 will be described with the same reference numerals.

As shown in FIG. 1, the process display device of the present invention is comprised of a computer 1 that performs sequence status display control processing, a CRT device 2 that displays sequence status, and an input device 6.

In the figure, in the computer 1, the sequence state data output from the control bag [3 that performs plant control is sampled at a predetermined period via the sequence state input control means 4, and the latest sampled sequence state data is the sequence state data. It is stored in storage area 5.

Further, the ongoing sequence block drawing surface determination control means 9
stores the latest sequence status in sequence status storage area 5.
The judgment conditions set for each sequence block screen in the ongoing sequence block screen judgment condition table 10 are checked at a predetermined period, and it is determined whether the conditions are satisfied or not. The screen name of the block diagram is displayed on the CRT device 2 via the output control means 8, and the position and screen number where the screen name of the sequence block diagram is displayed are stored in the ongoing sequence block drawing storage area 11.

The input control means 7 inputs the screen coordinates of the CRT device 2 inputted from the input control device 6, and displays them in the display area management table 12.
determines whether or not it is within the coordinate range of the in-progress sequence block drawing name display area, and if it is within the range, retrieves the screen number corresponding to that area from the in-progress sequence block drawing memory area 11. , the sequence block drawing of that screen number is displayed on the CRT device 2 via the output control means 8. The configuration of the ongoing sequence block diagram disconnection determination condition table IO is shown in FIG.
FIG. 3 shows the processing flow for determining the drawing surface of an ongoing sequence block by the ongoing sequence block screen determination control means 9, and the flow of this screen determination processing will be described.

FIG. 2 is an ith diagram of the ongoing sequence block drawing cutting determination condition table, in which the execution condition state and screen name of each sequence step in the sequence block diagram are stored in order of the sequence block drawing number.

FIG. 3 is a determination processing flow of the ongoing sequence block drawing surface determination control section, in which the screen number is set to ``1'''' in order to sequentially determine the ongoing sequence block drawing disconnection determination condition table 10 in the order of screen numbers. Next, it is determined whether the screen number exceeds the final number, and the next process is performed while updating the screen number until the screen number exceeds the final number.

The sequence step number is set to 11171 in order to process the signal input conditions during execution of each sequence step indicated by the screen number from sequence step number 1. Next, the information on the in-execution signal input condition indicated by the sequence step number is extracted, and whether or not the in-execution state is sequentially determined from the top of the sequence step number until the sequence step end code is reached.

The determination that the sequence step is being executed is determined from the sequence step execution signal input conditions shown in FIG. A logic diagram of this condition is shown in FIG.

That is, in FIG. 10, first, step completion is determined by the AND of a signal indicating that the master of the target sequence is in progress, a signal indicating completion of the previous step, and a plant state signal indicating completion of the step. The completion of this step is considered to be the execution of the next sequence step.

However, due to a change in the plant state, the previous step completion signal may fail, and the signal during execution of the sequence step may also drop. Therefore, by combining the AND result of the one step completion signal and the previous step completion signal with the OR of the previous step completion signal, the previous step completion signal is not dropped until the current step is completed. This portion is shown surrounded by a broken line frame in FIG. As a result, the current step completion signal is established for each sequence step, and this signal is treated as the execution signal of the next step.The execution state of the sequence step is checked, and when any of the sequence steps is in the execution state, this A sequence block drawing in which a step is set is determined to be in progress. Next, the ongoing sequence block drawing process and the in-progress sequence block drawing process that are processed based on the determined results will be described.

First, the ongoing sequence block drawing processing is performed using a CRT
The device 2 displays the screen name of the sequence block drawing in progress along the flow of the sequence. This processing flow is shown in FIG.

FIG. 4 is executed when it is determined that the sequence block diagram is in progress in the processing flow of FIG. 3.

The screen name of the sequence block diagram that is determined to be in progress is extracted from the ongoing sequence block drawing surface determination condition table 10 shown in FIG. 2, and the screen name of the sequence block drawing surface is displayed via the output control means 8. .

At this time, the CRT screen of the CRT device 2 is provided with a screen display area and a plurality of screen name display areas as shown in FIG. The usage status of this screen name display area is managed in steps a-a to a-2). The ongoing sequence block drawing determination control means 9 stores this ongoing sequence block drawing storage area 11.
Search for an unused area in the screen name display area or an area with the same screen number, display the name of the sequence block drawing in the screen name display area corresponding to the searched area, and display the screen number at the position where the unused area was searched. to remember. This ongoing sequence block drawing storage area 11 is shown in FIG. Storage areas 1-12 in FIG. 6 correspond to ongoing sequence block drawing name areas 1-12.

Further, the ongoing sequence block drawing processing in the processing flow of FIG. 3 erases the screen name from the CRT screen when the screen name is displayed on the screen of the CRT device 2. This processing flow is shown in FIG. That is, it is searched to see if the screen number that is the same as the screen number of the sequence block diagram that is not in progress is stored in the sequence block drawing storage area 11 that is in progress. As a result of the search, if the same screen number is stored, the stored information is canceled and the screen name displayed in the screen name display area on the screen of the CRT device 2 corresponding to the stored position is outputted. It is erased via means 8. An example of this display is shown in FIG. In the figure, "XXXXXXJ is the sequence block drawing name, nn is the first step number in the screen, mm
is the end step number within the screen.

By changing the sequence state in this way, the screen name of the sequence block drawing in progress can be displayed on the screen of the CRT device 2.

Next, the part displaying the screen name of the in-progress sequence block drawing displayed on the CRT device 2 is input to the input device 6.
When the operator specifies the position, the input control means 7 inputs the specified position.

The input position is the CR shown in FIG. 5 of the CRT device 2.
The position of the current sequence block drawing old name display area on the T screen is determined from the display area management table 12 in which the position of the current sequence block drawing old name display area and the screen display area are stored. . The structure of this display area management table 12 is shown in FIG. In FIG. 8, for example, L of screen name display area 1
X
l and RY are the upper right X coordinate and upper right y coordinate of the old name display area 1 of the current sequence block drawing. Below LX2
．． LY2. RX2. The same applies to RY2...

If the corresponding area exists as a result of the determination from the display management table 12, the storage information in the ongoing sequence block drawing storage area 11 corresponding to the area is retrieved. When this information is in use in the in-progress sequence block drawing storage area, the screen of the in-progress sequence block drawing number of the information is outputted to the CRT screen shown in FIG. 5 of the CRT device 2 via the control means 8. The upper screen display area is determined from the display area management table 12 and displayed. An example of this dialogue is shown in FIG. In this way, the screen display can be specified from among the sequence block drawings that are only in progress, and the display of the sequence block drawings can be changed as shown in Figure 9 without erasing the screen name of the sequence block drawing that is currently in progress. can be displayed.

〔Effect of the invention〕

As described above, according to the present invention, the screen names, screen numbers, or sequence step positions of a plurality of sequence block diagrams in progress are automatically displayed on a CRT device, and the The screen name, screen number, or sequence step position of the sequence block diagram can be switched and displayed, and the operator's effort to search for the sequence block diagram in progress can be reduced, thereby improving operational efficiency.

Furthermore, by specifying the screen name of the sequence block diagram in progress or the display position of the sequence step position of the sequence block diagram in progress displayed on the CRT device, the operator can display the sequence block diagram in progress without error.
Improves operability.

Furthermore, the area for displaying screens such as sequence block diagrams of CRT equipment and the area for displaying screen names, screen numbers, or sequence step positions of ongoing sequence block diagrams are separated, so sequence block diagrams or other monitoring screens can be displayed separately. While the screen is displayed, it is possible to easily determine what sequence block diagrams are in progress, reducing the operator's operational burden such as screen switching, and improving monitoring performance.

[Brief explanation of the drawing]

FIG. 1 is a block configuration diagram of an embodiment of the present invention, FIG. 2 is a configuration diagram of an ongoing sequence block drawing cutting judgment condition table, and FIG. 3 is a processing example of the ongoing sequence block drawing judgment control unit. Flowchart, FIG. 4 is a flowchart illustrating an example of the process performed by the ongoing sequence block drawing determination control unit when there is an ongoing sequence block drawing, and FIG. 5 is a diagram showing an example of dividing the screen area of a CRT device. , FIG. 6 is a configuration diagram of the in-progress sequence block drawing storage area, FIG. 7 is a flowchart showing a processing example of the in-progress sequence block drawing determination control unit when there is a sequence block diagram that is not in progress, and FIG. The diagram is C
A configuration diagram of a screen name display area management table that stores the screen name of the ongoing sequence block drawing displayed on the screen of the RT device. Figure 10 is a logic diagram for determining whether a sequence step is being executed;
12 is a diagram showing the display dialog of the sequence block drawing in progress, and FIG. 13 is a block configuration diagram of a conventional process display device. 1... Computer 2... CRT device 3... Control device 4... Sequence state input control means 5... Sequence state storage area 6... Input device 7... Input control means 8. ... Output control means 9 ... In-progress sequence block drawing surface judgment control means 10 ... In-progress sequence block drawing cutting judgment condition table 11 ... In-progress sequence block drawing surface storage area 12 ... Screen name display Area management table 13
・・・Process display device "1st flash-=1 1st flash 5th figure 12th leap

Claims (3)

[Claims] (1) Input the sequence status from the control device and search at any time for the screen number, screen name, or sequence step position of the sequence block diagram showing the sequence currently in progress on the process display device that displays the sequence status. What is claimed is: 1. A process display device comprising: means for simultaneously outputting a plurality of searched screen numbers, screen names, or sequence step positions to an output device. (2) In a process display device that inputs the sequence status from the control device and displays the screen number and screen name of the sequence block diagram currently in progress, or the position of the sequence step currently in progress, the screen number and screen name of the sequence block diagram. Alternatively, a process display device comprising means for displaying a designated sequence block diagram by designating a position where a sequence step position is displayed using an input device. (3) A process display device that inputs the process status from the control device and displays the process status is equipped with means for displaying the progress status of the plant sequence on the screen at the same time as the system diagram, sequence block diagram, or alarm message screen. A process display device characterized by: