JPS6120088A - Display status control system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the display form system (1ffl) system (in particular, the display state in a system for monitoring the state of a bran l- by using a display device). This concerns the control method.

[Conventional technology]

Regarding display status control BL (using plant control 1 monitoring system J) for display devices, etc. of this type of conventional plant status monitoring system, the 41st river 1
To explain, 1 is the control device, 2 is the arithmetic processing section (1a), and 3 is the arithmetic processing section (under the control of 3, the display processing, printing Predetermined aggregation program such as processing H>J, 2, L FI, 1ti
Ill? ) II 'A iFI'l output information is sent to the display device via the interface (see figure 1). ? (C: Ri”) 4 or sent to the printer 5.

Also, for the plant side, this interface D16. Information from the plant (receives K4.
8. Predetermined information is written to the plant via the interface Ao 9 as an analog output to the 1a section 2.
Read from and send.

this. A control/monitoring complex system that usually has a control program I'l galley 1.3a (or a control program D graphic 1, group 3
a) and the monitoring display processing program for monitoring display “1gra J, 3b
(or supervisory processing program 11, group 3b) are installed in the control device 1, and each is executed independently.

The input/output processing for the plant is managed by the control program 3a, and the state of Plan 1 is
This control program 3a is written in Q part 2-↑a.
After the predetermined arithmetic processing is performed, the interface Do8. Interface A.

9 to control the state of the plant.

On the other hand, display processing on the display device 4 and printing processing on the printer 5 are managed by the monitoring display processing program 3b, and include displaying predetermined information on the CR7 screen and printing on the printer 5. In particular, the screen to be displayed and the format for printing are described here.

FIG. 5(a), FIG. 5(b), and FIG. 5(C) are explanatory diagrams when displaying and monitoring the plant status in real time in such a conventional system. (
a) is a process explanatory diagram of a plant operation guide displayed on the display device 4;

For example, the guide display for each plant A and B is
, H indicates whether there is an abnormality or not depending on whether the contacts a and b are in the ON or OFF state.For example, when the a contact is in the ON state, this signal is sent to the interface Di.
The data is developed as Am (-“l”) in the main storage unit 2 via lO, and predetermined data is displayed on the display screen 4a of the display device 4. The same thing applies when the contact point of plan) B is in the ON state, and Bm
(="1").

Here, when plants A and B are normal, the display screen 4
The guide for al serves as a plant operation guide, and when plants A and B are abnormal, it serves as an abnormality processing guide.

This normal/abnormal processing is performed by referring to the data Am and Bm stored in a predetermined area of the main storage unit 2, for example.
When the data is m-1, the abnormal processing guidance is displayed on the display screen 4a of the display device 4 at the position corresponding to the plant A, and when the data is Am-〇, the normal processing guidance (in the current case, the operation guide) is displayed on the display device 4. Display screen 4
Display at the position corresponding to plant A in a. Also, data Bm
-1, abnormal processing guidance is displayed at the position corresponding to plan) B on the display screen 4a of the display device 4, and when data Bm = 0, normal processing guidance is displayed at the position corresponding to plan) B on the display screen 4a of the display device 4. to be displayed.

A control program for controlling such display processing is shown in FIG. 5(b). For example, the display processing program is as follows.
As shown in FIG. 5(C), each combination of the abnormality handling guide and operation guide for the plant and the abnormality handling guide and operation guide for plant B is divided into 1. Second. Third. The fourth four types (
It is provided as a screen display processing program corresponding to floor 1-4), and is prepared for each display block.
b) II? Wholesale program step ■a, step ■
a.

The state of the plant is determined sequentially in each step of step (a), and the four types of progera l, 01
You will need to select one.

[Problem that the invention seeks to solve]

Therefore, in the conventional processing method in which predetermined screen information is selected by such a control program, the overall structure of the program becomes complicated and the load on the control program side increases. .

[Purpose of the invention]

The present invention has been made in consideration of the problems of the prior art, and it solves the problems of the prior art, and also provides various displays corresponding to the plant depending on the state of the plant. The purpose of the present invention is to provide a display state control method that allows content to be displayed efficiently.

[Means for solving problems]

The means of the present invention for achieving such objects and solving the above-mentioned problems is to provide a disabling circuit for disabling display commands in the display control section, and to disable this disabling circuit in response to activation of a display processing program. The display control circuit selects commands of a predetermined display processing program and supplies them to the display control circuit to control the display state.

In particular, in a plant monitoring system, a switching circuit for switching between a valid/invalid state is provided in the display control section as an invalid circuit. Specifically, this switching circuit is, for example, 1
Adopts bit display inter-day memory. Then, an interlock memory set/reset command is prepared in the display processing program command, and if the content of the interlock memory is "l" (or "0"), the display control circuit from the display control circuit The command to is automatically invalidated (non-operation),
This is made invalid by not performing the display operation, and only a predetermined display command is selected to switch the display contents in the block position.

In addition, in this specification, the phrase "in response to or in response to the activation of the display processing program" refers to the same process whether the display program is activated before or after activation. It is used as a concept that includes these.

(Function) By doing this, there is no need to specially combine display processing programs, and by simply starting them one after another,
For unnecessary commands, it is sufficient to operate the invalidation circuit and select the command as invalid, so there is no need to perform control by activating a plurality of display processing programs in combination.

Therefore, the processing load of the control program can be reduced. Furthermore, since the startup process of the display processing program is simplified, overall efficient display processing is possible.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail using the drawings.

FIG. 1 is a block diagram of a plant status control and monitoring system to which the present invention is applied, FIG. 2 is an explanatory diagram of display status control when displaying and monitoring the plant status in real time, and FIG. , is a flowchart of a control program for display processing of the arithmetic processing unit. In addition, Figures 4 and 5 (
Items that are the same as a) are indicated by the same symbols.

In FIG. 1, 20 is a control device, and this control system obtains predetermined information from the arithmetic processing unit 3 and sends a predetermined control signal to the display device 4 to control the display contents. The monitor/display processing program 3C has a display control section 21 that performs the following operations, and a monitoring/display processing program 3C that is added with a function of sending out display commands.

Here, as shown in FIG. 2, the display control section 21 is composed of a display command switching circuit 22 and a display control circuit 23, and the display command switching circuit 22 is connected to an interrotator memory 31 and a non-operation command. It is equipped with a NOP command generator 32 consisting of a memorized register, etc., and a command I' switching circuit 33. Note that the display command off circuit 22 is one of the specific examples provided in the form of a valid/invalid switching circuit as an invalid circuit in the present invention.
It is one.

Here, the command switching circuit 33 is an ANT) circuit 34.
．． 35, a NOT circuit 36, and an OR circuit 37, which switches between display commands and non-operation commands and sends them to the display control circuit 23.

The display control circuit 23 decodes the given command and changes the point coordinates (x, y) on the CRT screen of the display device 4 to the respective address pointers X according to the command.
, Y, and outputs predetermined display information.

Furthermore, the relationship between the main storage section 2 and the display screen 4a is shown in FIG.
The process is similar to the process for the plant operation guide described in a).

That is, the guide display for each plant A, B is developed in the main storage unit 2 via the interface DilO, and predetermined data is displayed on the display screen 4a of the display device 4. Also, plant A.

The normality/abnormality processing of B is performed with reference to data Am and Bm stored in a predetermined area of the main storage unit 2.

Next, the operation of the arithmetic processing section 3 will be explained according to the flowchart of the processing shown in FIG.

First, in step ■, for example, generate a GRND command,
The data is read out from the main storage section 2-1- and set in the interlock memory 31. Here, if the content of Am is "1°," the value of this interlock memory 31 is '1°.
” becomes.

Next, in step (2), the contents of the operation guide display processing program of the plant A are converted into display commands one by one, and each command is sent to the display control circuit 23 via the display command switching circuit 22. Since this is sent to the display control circuit 23 via the AND circuit 34,
NOT when the value of interlock memory 31 is “l”
As a result, "0" is supplied to the AND circuit 34 via the circuit 36, and as a result, the AND circuit 34 as a gate is turned off.
The state will be F, and no display command will be sent.

On the other hand, the output of 1' of the interlock memory 31 is AND
AND circuit 35 as a gate
is in the ON state, and the non-operation command is N.
OP generator 32 to AND circuit 35. It is input to the display control circuit 23 via the OR circuit 37.

As a result, when "1" is set in the interlock memory 31, the display control circuit 23 accepts a non-operation command and does not perform any operation. Therefore, the address pointers of X and Y are also
will remain pointing to the first position of the guidance.

Next, in step (2), for example, a GNF TNV command is generated to invert the contents of the interlock memory 31 and reset the contents in the interlock memory 31. Therefore, 0'' is set in the interlock memory 31.

Next, in step (2), the contents of the abnormality handling guide display processing program of plant A are converted into display commands one by one as in step (2), and sent to the display control circuit 23. At this time, the contents of the ink clock memory 31 are “
0'', the gate of the AND circuit 34 is opened, and the signal is sent to the display control circuit 23 via the OR circuit 37, and predetermined processing is executed. [[It is.

When "1" is set in the interlock memory 31 in this way, the normal processing command in step (2) is invalidated and blocked, a non-operation command is sent to the display control circuit 23, and then the next command is disabled. In step ■,
The value in the interlock memory 31 is inverted to "0", the abnormality processing command is validated, and the display processing command is sent to the display control circuit 23.

As a result, guide information for abnormality processing is displayed in the guidance section of the plant A on the display screen 4a.

On the other hand, when "θ" is set in the interlock memory 31, the command for normal processing in step (2) becomes valid and is sent to the display control circuit 23, and in the next step (2), the interlock The value in memory 31 is inverted and “
1'', the abnormal processing command is blocked, a non-operation occurs, and the non-operation command is sent to the display control circuit 23.

Here it is! -, after step (2), similar processing is sequentially performed for plant B1 and other plants.

Therefore, depending on the ON/OFF state of contacts a and b, “O
"N" can display abnormality processing guide, and "OFF" can display operation processing corresponding to each plant.

In this way, for example, the display processing program includes the abnormality processing guide for plant A, the i1 line guide, and the plant B
You can simply write these screen display processing programs without having to prepare a combination of abnormality processing guides and operation guides.
They are prepared in sequence for each display block, and the processing on the control program side can be done by simply starting up the entrainment guide program (normal display processing program) and the abnormal display processing program one after another. It becomes simple.

As explained above, the display processing program is not limited to such guide programs, but can be applied to various display programs, and may not correspond to the display blocks on the screen. Good too.

Further, in the embodiment, data indicating the state of the plant is directly transferred to the interlock memory, but this is done by referring to the state of the plant.

In this case, "1" may be set as valid, and "O" may be set as invalid and used in reverse. Also, the invalid circuit may be set as a valid/invalid switching circuit like this. Instead, it may be a circuit that disables unnecessary display commands.

Further, in the embodiments, the description focuses on plant status display, but the present invention is not limited to this.

In the embodiment, the case of a CRT display device is explained, but it goes without saying that the present invention can be applied to control of the display state using various display devices, including display devices such as liquid crystal display devices.

〔Effect of the invention〕

According to this invention, the display control section is provided with an invalidation circuit that invalidates the display command, and the invalidation circuit is activated in response to the activation of the display processing program. The commands of the predetermined display processing program are selected and supplied to the display control circuit to control the display state? 11, there is no need to specially combine display processing programs, and it is sufficient to simply start them one after another. If an unnecessary command is selected, it is sufficient to activate the invalidation circuit to invalidate the command and select it, so there is no need for a control program for starting a plurality of display processing programs in combination.

As a result, the processing load of the control program can be reduced, the startup process of the display processing program becomes simple, and efficient display processing becomes possible.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a plant status plant control monitoring system to which the present invention is applied, FIG. 2 is an explanatory diagram of display status control when displaying and monitoring the plant status in real time, and FIG. FIG. 4 is a flowchart of a control program for display processing of the arithmetic processing unit, and FIG. 5(a) is a block diagram of a conventional plant control and monitoring system for plant status. FIG. 5(b) and FIG. 5(C) are explanatory diagrams for displaying and monitoring plant conditions in real time in conventional systems, respectively. 1.20 Control device 2 Main storage unit 3- Arithmetic processing unit 3a Control program 3b, 3c Monitoring/display processing program. 4- Display device (CRT) 5- Printer 6, 7. 8. 9. 10 Interface 2
1-Display control unit 22 Display command switching circuit 2
3 Display control circuit 31 Interlock memory 32-No P command generator 33 Command switching circuit 34.35 -
AND circuit, 36 NOT circuit, 37 0R circuit.

Claims (3)

[Claims] (1) A disabling circuit for disabling display commands is provided in the display control unit, and this disabling circuit is selectively operated in response to the startup of a display processing program to select a command of a predetermined display processing program and control the display. A display state control method characterized by supplying a signal to a circuit to control a display state. (2) The display processing program includes a normal processing guide display processing program and an abnormal processing guide display processing program, and the invalid circuit is a valid/invalid switching circuit equipped with an interlock memory, and this interlock memory Data indicating the state of the plant is referred to or directly transferred to the data, a valid or invalid state is set according to this data, and the normal processing guide display processing program and the abnormal processing guide display processing program are sequentially activated. , in response to the activation of the next display processing program among these display processing programs, by reversing the set valid or invalid state, selectively disable operation is performed and a command of the display processing program is selected. A display state control method according to claim 1, characterized in that: (3) The normal processing guide display processing program and the abnormal processing guide display processing program are for a plant, and each corresponds to one block on the display screen, Display state control method according to scope 2.