JPH05268671A - Plant controller - Google Patents

Abstract

PURPOSE:To prevent mis-recognition and mis-operation of a console by raising a warning when a same kind of operation is implemented by plural operator consoles and operating the console while being reflected with the relation. CONSTITUTION:When one controller 2 is operated by an operator console 1, the console 1 sends transmission information representing the operation content in the simultaneous multiple address system. The transmission information is received by all the consoles 1 connecting to a communication line 3. The operation content is recognized and it is compared with its own operation schedule content. When it is discriminated that any relation is in existence, it is warned to the operator. When the operation content is entirely stored in the storage device of each console 1, each console 1 confirms the content of all operations even in the case of a fault. Even when the operation intended by the operator is disable, it is not misunderstood to be a fault of the system. Then mis-recognition and mis-operation are prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant control device for monitoring and operating a plant by a plurality of operator consoles, and particularly when a plurality of operator consoles are performing the same operation, a warning to that effect is issued. The present invention relates to a plant control device that emits an alarm and a plant control device that can easily confirm all past operation contents when an abnormality occurs in the plant.

[0002]

2. Description of the Related Art In general, a plant control device comprises a plurality of operator consoles 1 ... 1, control devices 2 ... 2 for controlling each plant, and one operator console 1 and each control device 2 for connection. It is composed of a communication line 3 (see FIG. 1). Each control device 2 is connected to each plant by a field signal, and the operator console 1 operates or monitors the plant via the control device 2. In general, the operator console 1 includes a display device 4, a CPU 5 for controlling the operation of the entire device, a storage device 6 for storing various data, and an operator giving various instructions to the device. It is composed of an operation keyboard 7 used for (see FIG. 2).

Since the operator console 1 configured as described above is connected to all the control devices 2 via the communication line 3, any operator console 1 can monitor and operate all the control devices 2. Is characteristic. The operation contents of each operator console 1 are stored in the storage device 6 one by one, and when a plant abnormality occurs, the past operation contents are displayed on the display device 4 for investigating the cause of the abnormality. You can do it.

[0004]

However, in the above-described plant control device, since the same operation can be performed from each operator console, when the two operator consoles perform the reverse operation at substantially the same time (for example, the console on one side does not work). When the set value is increased and the same set value is decreased on the other side console), each console does not operate as intended, and the operator mistakenly thinks that the plant control device has failed. There is a risk of damaging. That is, for example, even if the operator is operating to decrease the set value, the set value may not change due to an increase operation by another operator console, and especially when the two operator consoles are apart from each other. Is a big problem because the reason why the set value does not change cannot be immediately understood.

Further, in the above-mentioned plant control device, since all the control devices 2 ... 2 can be operated from each operator console 1, even if an abnormality occurs in the plant, all operation consoles 1 are operated. There is a problem that the cause of the abnormality cannot be determined unless the operation contents of 1 are checked one by one. The present invention has been made focusing on these problems, and when a plurality of operator consoles are trying to perform the same type of operation, a plant control device that issues a warning to that effect, and each operation An object of the present invention is to provide a plant control device capable of confirming the operation contents of the entire system on a console.

[0006]

In order to achieve the above object, a plant control apparatus according to the present invention is connected to a control apparatus for controlling various plants and the control apparatus via a communication line. In a plant control device configured with a plurality of operator consoles for transmitting and receiving various signals to and from, when performing some operation on any of the control devices from each operator console, the operation content When the operation means of the transmitting side operator console is recognized by this transmission data and the transmission means for transmitting the operation information to all operator consoles, and the operation content is compared with the content of the operation schedule of oneself, and when both are related Is provided with warning means for operating the receiving side operator console by reflecting the fact.

[0007]

The transmitting means is provided in all operator consoles, and when any operation is performed on any of the control devices from each operator console, the operation content is transmitted to all operator consoles via the communication line. To send. The warning means receives the transmission data on the communication line and recognizes the operation content of the transmission side operator console. Then, the recognition result is compared with the contents of the operation schedule of the user.
Specifically, each operator console displays information on an operation schedule related to a specific plant (control device) on, for example, a display screen, and compares the display content with the recognition content to perform its own operation schedule. It is determined whether or not the operation does not match. Then, if they are related to each other, the fact is reflected to operate the receiving side operator console. For example, it may be displayed by a color on the console screen.

[0008]

The present invention will be described in more detail based on the following examples. FIG. 1 shows a system configuration diagram of a plant control apparatus according to an embodiment of the present invention, and FIG. 2 shows a block diagram of each operator console (operator console). The hardware configuration is the same as that of the conventional device described above, and is composed of operator consoles 1 ... 1, control devices 2 ... 2, and one communication line 3. Also, the internal configuration of each operator console 1 is the same as the conventional one in terms of hardware configuration, and a display device 4 formed of a CRT display or the like,
A storage device 6 formed of a CPU 5 and a hard disk or the like
And an operation keyboard 7.

As is apparent from FIGS. 1 and 2, a plurality of operator consoles 1 ... 1 and control devices 2 ... 2 are connected by a single communication line 3, and signals from the respective control devices 2 ... , All operator consoles 1 ... 1 can be monitored, and the same operation can be performed on all control devices 2 ... 2 from any operator console 1 ...

A feature of this plant control device is a command transmission system to the communication line 3 when each operator console 1 tries to perform some operation on a specific plant (control device 2). That is, when a certain operator console 1 performs some operation on the specific control device 2, the operator console 1 transmits the transmission information indicating the operation content by the simultaneous broadcast method. Then, this transmission information is received by all the operator consoles 1 ... 1 connected to the communication line 3.

The operator console 1 on the receiving side receives the above-mentioned transmission information, and the operator console 1 on the transmitting side.
Recognizes the operation content of and compares the operation content with the content of the operation scheduled by the user. Specifically, on the receiving-side operator console, a screen corresponding to the contents of the operation schedule is displayed. Therefore, the display screen and the transmission information are compared and examined. Then, when it is determined that the operation content of the transmission side operator console and the operation schedule content of the reception side operator console are related, for example, the display screen is changed from a normal color to a special color for warning, Notify the operator to that effect.

When the above points are confirmed again by a concrete example,
For example, two operator console display screens (control panel
Both are shown in Fig. 3, and one operator
Rule 1 _-1It is assumed that the set value is increased or decreased with. Then, above
Operator console 1 on one side_-1Is the operation target panel
And operation information is sent to the communication line 3 by the simultaneous broadcast method.
Believe. Therefore, the other side operator console 1_-2Is
Recognize the above information and change the color of the pointer indicating the set value for a few seconds.
Change only between Due to this color change, the operator
Perator console 1_-1The same operation is performed in
You can recognize that, for example, your own console screen
System malfunction even if the pointer does not move as intended above
There is no fear of misunderstanding that the problem has occurred.

As described above, in the plant control apparatus shown in FIGS. 1 and 2, when the operator console 1 operates a specific plant, all operator consoles 1 ... It is sending to 1. Therefore, it is possible to store the operation content of the transmitting-side operator console and the operation content of the transmitting-side operator console in the receiving-side operator console. In this way, if all the operation contents of each operator console are stored in the storage device 6 of another operator console, all the operation contents can be confirmed in each operator console even when the system is abnormal, for example. It is convenient for That is, unlike the conventional device, it is not necessary to check the operation contents for each operation console one by one, and it is possible to check all the operation contents on one operation console.

Further, as a modified example, the transmission information is not stored in all the operator consoles on the receiving side, but the number of the operator consoles storing the transmission information is limited to one (master unit), and the operation contents of all the operator consoles are It may be stored only in the parent device. In this case, if it is desired to confirm all the operation contents from the operation console other than the master unit, the contents of the storage unit of the master unit may be checked via the communication line.

[0015]

As described above, in the plant control device according to the present invention, when two or more operation consoles attempt to perform the same type of operation, a warning to that effect is issued. Therefore, even if the operator's intended operation cannot be performed by performing the reverse operation on each operator console, there is no possibility of erroneously recognizing it as a system failure.

Further, if the transmission information from the operator console on the transmitting side is stored in the operator console on the receiving side, all the operation contents can be confirmed on one operator console when investigating a plant abnormality. Further, since each operation console stores all operation contents of the system, various display such as display of operation contents for each control device, operation contents for each operation console, and display of operation contents by time unit. It becomes possible to

[Brief description of drawings]

FIG. 1 is a system configuration diagram of a process control device according to an embodiment of the present invention.

2 is a block diagram of the operation console shown in FIG. 1. FIG.

FIG. 3 illustrates a display example of a control panel on a display device.

[Explanation of symbols] 1 operator console 2 control device 3 communication line 5 CPU (transmitting means, warning means)

Claims (1)

[Claims] 1. A control device for controlling various plants, and a plurality of operator consoles connected to the control device via a communication line and transmitting / receiving various signals to / from each control device. In the plant control device, when performing any operation on any of the control devices from each of the operator consoles, transmitting means for transmitting the operation content to all operator consoles, and the transmission side operator console by this transmission data And a warning means for activating the receiving-side operator console by recognizing the operation contents of the above, comparing the operation contents with the contents of the own operation schedule, and reflecting them when they are related A plant control device characterized by the above.