JP2736201B2 - Operation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating device for plant equipment, and more particularly to an operating device in which a large number of control devices for driving and controlling plant equipment are connected to a man-machine device through a plurality of transmission lines.

[0002]

2. Description of the Related Art It is well known that the operation technology of plant equipment in a power plant or the like has been highly developed by recent digitization and transmission.
In particular, in a large-scale plant, digital distributed control and functional integration of the instrumentation and control system are being promoted.

In conventional relay sequence / analog control or hard-wired wiring, the control equipment for plant equipment becomes large while the amount of cables becomes enormous. This is due to the fact that it requires a lot of space, limits the implementation of intelligent and advanced plant control, and makes remote control difficult.

FIG. 8 shows a conventional example of an operation device in such a digital / transmission system. In the figure, reference numeral 1 denotes a plant device, 2 denotes a driving device for driving the plant device 1, and 3 denotes a driving device 2. A control device that sends a control signal, 4 is a control device 3
Is a transmission line for performing data transmission between the man-machine device 4 and the control device 3.

In this configuration, the operation of the plant equipment 1 is such that the man-machine device 4 transmits an operation request input to the man-machine device 4 to the control device 3 via the transmission line 5 and the control device 3 This is achieved by performing a control operation on the operation request and transmitting the result to the drive device 2.

Here, the man-machine device 4 includes a display means 11 for displaying the status of the plant equipment 1 and its operation switches and their respective symbols, and a symbol for the plant equipment 1 and its operation switches displayed on the display means 11. Other operation input means 12 for selecting and inputting predetermined information according to the message, and data input / output processing means 13 for performing data transmission output processing from the operation input means 12 and data display output processing from the control device 3 respectively. The configuration and the interaction with the plant equipment monitoring / operation screen as shown in FIG. 8 enable not only the monitoring but also the operation of the plant equipment.

The data input / output processing means 13 of the man-machine device 4 includes an input transmission means 14a, an output transmission means 14b, and an input transmission means 14a for transferring data between the data input / output processing means 13 and the transmission path 5. Input memory 15a for storing the data to be transmitted to the output transmission means 14b;
From the input means 16 for reading the data, the display control means 17 for controlling the display of the data read by the input means 16 on the display means 11, the judging means 18 for detecting and judging a signal inputted by the operation input means 12, And output means 19 for generating output data based on the above data.

The operation of the conventional operating device having the above-described structure will be described with reference to FIGS. 9 and 10, focusing on the function of the man-machine device 4 and the flow of signal processing for operating the device. Plant equipment 1 (i) (i = 1, 2,..., N) and its driving device 2
Process signals U (i) from various sensors attached to (i) are transmitted to the man-machine device 4 via the control device 3 and the transmission line 5a. The process signal U (i) transmitted to the man-machine device 4 is stored in the input memory 15a by the input transmission means 14a, detected by the input means 16 and displayed by the display control means 17 on the monitor / operation screen of the display means 11. Of the graphic area V in the device symbol 0 (i). That is, based on the graphic data D _V, as shown in FIG. 9, the display control unit 17, a device symbol 0 (i) of the plant equipment 1 (i), on the graphic area V (x, y) coordinates representing the coordinates X (i)
Is displayed reflecting the value of the process signal U (i).

Next, when the operator operates the device using the monitoring / operation screen, the operator uses the operation input means 12 to select the device symbol 0 (i) of the device 1 (i) to be operated. The selected position is converted into a coordinate signal X (i) and passed to the determination means 18.

[0010] determination means 18 determines that the coordinate signal X based on (i) the display control means 17 equipment symbols 0 searching for graphic data D _V currently displayed (i) is selected, the graphic equipment symbol of data D _V 0
Based on (i) the corresponding operation index t (i), reads the switch data D _G of plant equipment 1 (i) from the switch data D _G group which is set in advance,
This is notified to the display control means 17. Display control means 17
Is the operation area G of monitoring and operation screen based on the switch data D _G received, displays the operation switch symbol S of plant equipment 1 (i).

Further, when the operator selects one of the switch symbols S in the operation area G with the operation input means 12, the judging means 18 indicates the (x, y) coordinate value of the switch symbol S on the operation area G. receiving coordinate signals Y (j) from the operation input unit 12, display control unit 17 searches the switch data D _G currently displayed, switch symbols S (j) (j = 1,2,3 , ...) is It determines that the selected switch settings corresponds to the selected switch symbol S switch data D _G (j) information R (i, j) (i = 1,2, ..., n) (j = 1,2, 3,
..) Are set to “1”, and other switch setting information R (i) is set to “0”.

The output means 19 outputs the operation index t (i)
And the operation command data C including the switch setting information group R (i) from the determination means 18, and the operation index t (i) of the operation command data C and the operation index t
The switch setting information group R (i) belonging to the operation index t (i) is designated in the output memory 15b based on the conversion information Z in which the address A (h) of the output memory 15b is set in advance for each (i). Save to address.

The output transmission means 14b includes an output memory 15b
Is divided into specific address units, and an identification code for discriminating to which control device 3 (k) (k = 1, 2,..., M) is attached to each packet P ( k) and
These are output to the transmission line 5b as output data.

The control device 3 (k) selects, from the output data transmitted via the transmission line 5, a packet P (K) having an identification code that matches an identification code preset in the control device 3 (k). k), and fetches the data into the reception memory HI of the control device 3 (k) as shown in FIG. Then
Based on the received switch setting information group R (i) and other process signal information, the operation state and operation amount of the plant equipment 1 (i) are determined according to the control operation formula E (i), and the equipment drive information is controlled. A drive end F (i) for driving the plant equipment 1 (i) in the drive circuit HO of the device 3 (k) is set, and an equipment drive command signal is output to the drive 2 (i).

The driving device 2 (i) starts or stops the operation of the plant device 1 (i) in response to a device driving command signal from the control device 3 (k).

The plant equipment 1 thus operated
The change in the operation state of (i) is transmitted to the man-machine device 4 via the control device 3 (k) and the transmission path 5, and the display form of the switch symbol S of the device symbol 0 (i) in the operation area G is displayed. And the color changes.

As described above, the operating device according to the prior art is rationally configured by applying digitization and transmission.

[0018]

By the way, the scale of the plant is still increasing, and accordingly, the plant equipment 1 (i) to be driven by each control device 3 is required.
And the number of control arithmetic expressions E for calculating these needs to be increased.

When the control arithmetic expression E of each control device 3 is increased,
Since the number of processes to be executed by the control device 3 increases, the time required for the control device 3 to complete a control operation becomes longer, causing a problem that high-speed control of the plant equipment 1 becomes difficult. If the number of plant equipments 1 driven by the control unit 3 is increased, the possibility of losing many means for controlling the plant equipments 1 when the control device 3 fails is increased, which is not preferable.

That is, it is necessary for the control device 3 to measure the risk dispersion, and when viewed from the functions of the entire plant, in particular, the redundancy of the plant equipment 1 which performs the same function (for example, installation of a backup system for a normally used system or A It is indispensable to provide the respective control devices 3 for the B system and the C system having the same function with respect to the system.

As described above, it is necessary to increase the number of the control devices 3. However, if only one transmission line 5 is conventionally provided, the above-mentioned packet flows between the man-machine device 4 and the control device 3 at high speed. , The problem has arisen that the responsiveness of the operation of the plant equipment 1 is impaired.

Therefore, it is necessary to disperse and connect the control devices 3 by a plurality of transmission lines 5. As a countermeasure, simply providing a plurality of prior art man-machine devices 4 for each transmission line 5 is required. However, in this case, since the information of the unconnected transmission line 5 cannot be displayed on the man-machine device 4, it becomes difficult to perform intensive monitoring of the entire plant. Input means 12
Is limited to a specific plant equipment, which may be inconvenient.

For this reason, basically, it is necessary to connect a plurality of transmission lines to a man-machine device and to reliably output an operation request for plant equipment to the control device.

The present invention has been made in view of the above circumstances, and while improving the controllability of plant equipment,
It is an object of the present invention to provide an operation device which measures risk dispersion of control and has high operation response.

[0025]

That is, the present invention provides a program
Connected to a control device that drives and controls the runt equipment via a transmission path.
Is continued, the operation device odor driving operation of the plant equipment
Te, display means for displaying predetermined information, including the status of plant equipment, operation input means for inputting an operation request with respect to the plant equipment, and more operation request for plant equipment from the operation input means, advance per plant equipment Corresponding
Control device and transmission line
A control device for driving and controlling the plant equipment and
Determining a transmission path to which the control device is connected;
The device operation command signal with the identification code addressed to
And an attribute determination transmission processing means for transmitting and outputting the data .

[0026]

[Action] Te above configuration smell, when the plant equipment operation request is input by the operation input means, the attribute determining transmission processing hand
The stage determines which plant equipment has been selected ,
A control device that drives and controls the plant equipment and a transmission line to which the control device belongs are determined, and an equipment operation command signal with an identification code addressed to the control device is transmitted and output to the transmission line.

The control device receives the operation command signal by the identification code, executes a control calculation, and outputs a drive command signal to the drive device of the plant equipment according to the calculation result. As a result, the plant equipment is operated and its operating state changes.

As described above, in the present invention, the attribute determination
By providing the transmission processing means , it is possible to connect a large number of control devices to a single operation device via a plurality of transmission paths, and it is possible to operate a large number of plant equipment, thereby increasing the scale of the plant. Can respond.

[0029]

Embodiments of the present invention will be described below with reference to the drawings. Note that portions common to the conventional example are denoted by the same reference numerals and described.

FIG. 1 is a block diagram schematically showing the overall configuration of an embodiment of the operating device according to the present invention, and FIG.
FIG. 3 is a block diagram showing the configuration of the man-machine device 4 'in detail. As shown in these figures, the operating device of the present embodiment includes a plurality of transmission lines 5 (e) (e = 1,
2,..., L), and the man-machine device 4 'has a data input / output processing means 13' having an attribute determination transmission processing means 21 for determining which transmission path 5 (e) to transmit data to.
And display means 11 for displaying operation equipment of the plant, and operation input means 12 for inputting an operation request for the plant equipment. In addition, a plurality of control devices 3 are connected to each transmission path 5 via, for example, a star coupler. And each control device 3 is similar to the conventional example,
It is connected to some plant equipment 1 and its driving device 2, and controls the plant equipment 1 automatically based on a process signal from the plant or manually based on an operation command signal from a man-machine device 4 '.

Further, as shown in FIG. 2, the data input / output processing means 13 'of the man-machine device 4' includes an input means 16 for inputting data received from each transmission line 5, and a data input Display control means 17 for displaying on the screen of the display means, an operation command signal of the equipment based on the operation request for the plant equipment 1 input by the operation input means 12, and the corresponding control device 3 and the control device 3 is an attribute determining transmission processing means 21 for determining the connected transmission path 5 and transmitting the determined transmission path 5 to a predetermined transmission path 5. The attribute determination transmission processing unit 21 further includes a determination unit 18 that determines a signal from the operation input unit 12 and a transmission line 5 to which a corresponding operation command signal is transmitted based on the operation request of the plant equipment determined by the determination unit 18. Output means 19 'for determining and outputting, and a plurality of input memories 15a (e) and output memories 1 provided corresponding to the respective transmission paths 5 (e).
5b (e), and a plurality of input transmission means 14a (e) and output transmission means 14b (e) for transferring data to and from each transmission path 5 (e).
It is composed of That is, the input means 16 inputs the process signal information from each input memory 15a,
9 'outputs operation command signal information to each output memory 15b.

Next, the operation of the operating device having the above configuration will be described. As described in the prior art, the operator selects the symbol 0 (i) of the plant equipment 1 (i) to be operated on the monitoring / operation screen as shown in FIG. Next, when the switch symbol S of the device 1 (i) displayed in the operation area G of the screen is selected,
Determination means 18 receives the signal indicating the coordinates on the screen of the selected position X (i) and Y (j), the display control unit 17 based on the coordinate signal X (i) is currently displayed graphic data D _V Remove the switch data D _G of the device 1 (i) based on the operation index t (i) corresponding to the device symbol 0 (i) in the switch of the switch data D _G based on the coordinate signal Y (j) Setting information R (i, j) (i = 1,2,
.., N) (j = 1, 2, 3,...) Are set to “1”, other switch setting information R (i) is set to “0”, and the operation index t
(i) and the operation command data C having the switch setting information group R (i) are passed to the output means 19 '.

Here, the output means 19 'controls the setting information of the operation command data C by controlling the plant equipment l (i) to be operated by the operator.
(e = 1, 2,..., L) (k = 1, 2, 3,...) to determine the attribute for transmission via the transmission path 3 (e), and among the L transmission paths 3 Is selected as the specific transmission line 3 (e).

For this reason, as shown in FIG. 3, the output means 19 'includes, as the conversion information Z', a memory index e for specifying the output memory 15b corresponding to each transmission path 5 for each operation index t (i); The address A where the switch setting information group R (i) is set on the output memory 15b (e).
(h) are registered in advance based on the overall configuration of the operation device. This conversion information Z 'is stored in the operation index t (i)
Is different from the conversion information Z of the prior art in that a memory index e, that is, information for designating a specific transmission path 3 (e) is newly provided corresponding to.

When the output means 19 'receives the operation command data C as shown in FIG.
0), the conversion information Z 'is searched based on the operation index t (i) set in the operation command data C (10).
1) The output memory 15b (e) is determined based on the registered memory index e (102). Then, based on the address A (h) registered in the conversion information Z ',
Designated address A (h) of output memory 15b (e) specified earlier
Is set to the switch setting information group R (i) (103), and the corresponding output transmission means 14b (e) is activated based on the output memory index e (104).

As a result, the output transmission means 14b (e)
As shown in (1), the information set in the output memory 15b (e) is divided into specific address units, and the information is addressed to the specific control device 3 (e, k) connected to the transmission path 3 (e) in accordance with the address division. A packet P (e, k) with an identification code
Is generated and output to the transmission path 3 (e).

On the other hand, the control device 3 (e, k) receives the above-mentioned packet P (e, k), judges the identification code, and determines in advance the control device 3 (e, k) as described in the conventional example. e, k) is compared with the code information set, and the packet P (e, k) that matches
Is loaded into the reception memory HI of the control device 3 (e, k), and the operation state and the operation amount of the plant equipment are controlled based on the received switch setting information group R (i) and other process signal information. The calculation is determined based on i), and the control device 3 (e, k)
The device drive information is set to the drive end F (i) for driving the plant device 1 (i) in the drive circuit HO included in the drive circuit HO, thereby outputting the device drive command signal to the drive device 2 (i).

Here, the plant equipment 1 (i) and the driving device 2
(i) constitutes a circuit corresponding to the drive end F (i). For this reason, the operation start and stop of the plant equipment 1 (i) can be executed.

As is clear from the above description, in the operating device having the above structure, the input transmission means 14a and the input transmission means 14a corresponding to the plurality of transmission paths 5 are used as the attribute determination transmission processing means 21 of the man-machine device 4 '. While the memory 15a, the output transmission / transmission means 14b and the output memory 15b are provided, the conversion information Z 'used by the output means 19' corresponds to the operation index t (i) and the output memory 15b, that is, the transmission connected thereto. An output memory index for designating the path 5 is newly registered, and the output means 19 'determines the control device 3 to which the plant equipment 1 and the drive device 2 to be operated belong based on the conversion information Z'. The transmission line 5 to which the plant equipment 1 belongs can be operated by connecting a plurality of transmission lines 5 from one man-machine device 4 '. To become.

As a result, even in a large-scale plant, the control arithmetic expression E set in each control device 3 can be reduced in accordance with the control responsiveness of the plant equipment.
It is possible to obtain an operating device capable of executing intelligent and advanced control.

Further, it is possible to obtain an operating device that minimizes the loss of the function of the entire plant due to the failure of the single control device.

In the above embodiment, the method of driving the plant equipment 1 in one shot has been described for the sake of simplicity. However, a continuous drive amount such as a controller is controlled by the man-machine device 4. ′ To the specific transmission line 5 and the control device 3. In this case, the amount of deviation between the current value and the set value, the set value, and a value that can be converted into an analog value are set in the switch setting information R. Also,
While the value of “1” is set, a method in which the control device 3 drives the plant equipment 1 may be considered. The method corresponds to each processing method, and the determination unit 11, the output unit 19 ′, the display control unit 1, and the like.
It can be easily achieved by changing the configuration of FIG.

In the above embodiment, the description was made using the star-type transmission line 5, but the bus-type transmission line as shown in FIG. 5, the loop-type transmission line as shown in FIG. It is also conceivable to use a transmission line configuration in which another transmission line 5 is connected from a specific control device 3 or station of the transmission line 5 as shown in FIG. Any of these configurations can be easily achieved by setting an output memory index for determining the transmission path 5 in advance. However, in a configuration in which another transmission path 5 is connected to the transmission path 5, the output memory index is defined two-dimensionally, and the address is also defined two-dimensionally correspondingly. That is, when the number of transmission paths is increased in this embodiment, the output memory index and the address are defined by increasing the number of dimensions.

Further, in the above embodiment, the input transmission means 1
4a and the output transmission means 14b are paired and dedicated to input and output, but this is performed when operation (output) is required, while monitoring (input) is always performed, so that mutual interference is prevented. It is a configuration made to pass. Therefore, the input transmission
If it is considered that alternation of output transmission (transmission in both directions) will not affect monitoring and operation, input,
The object of the present invention can also be achieved by using a transmission unit that alternately performs output.

Further, in the above-described embodiment, the transmission network is constituted by wires, but the transmission network is constituted by ultrasonic waves, infrared rays, F
<br/> may be configured in a wireless manner such as by radio waves M wave or the like.

The operation input means 12 in the operation device of the present invention includes a touch screen, a mouse, a light pen,
In either pointing device of the tablet or the like can Rukoto obtain the same effect is intended to achieve the same purpose. Further , in the above embodiment, the operation input means 12 detects the coordinates of the display means 11, but may be an illuminated switch with a lamp or a twisted switch with a lamp. At this time, these switch signals can be achieved by determining which plant equipment 1 is to be operated in what state by the determining means 18 and generating operation command data C.

Further, in the above embodiment, the display means 11 is shown as a single unit. However, in consideration of simultaneous operation of different plant equipments 1, a plurality of display means 11 and a plurality of operation means corresponding thereto are provided. The input means 12 may be provided.

In the above embodiment, the judgment means 18 and the output means 19 'have been described separately, but they may be integrated into one means. In this case, the conversion information Z 'may be integrated with the switch data D _G in FIG. That is, if the operation index t (i), the output memory index e, and the output address A (h) correspond, the same effect can be obtained.

In the above embodiment, the output memory 15b
However, when the address does not interfere with the address for the other transmission path 5 and the address for the specific transmission path 5 is secured, one or several addresses may be provided. In this case, the output transmission means 14b has previously determined which output memory 15b
The device must be programmed to determine from which address the packet will be generated. It may be configured in several even one for the input memory 14a for the same reason.

In the above-described embodiment, the description has been given of the method in which the output means 19 'activates the output transmission means 14b. However, when the transmission means of the method in which the packet P constantly communicates periodically is applied, This activation process is unnecessary.

In the above embodiment, the packet P is described as being generated at a specific address partition of the output memory 15b. However, the packet P may be generated based on a specific data file.

Further, in the above embodiment, a configuration in which a plurality of transmission paths 5 exist has been described. However, even if the transmission path 5 has a single configuration, the transmission path 5 is converted by the conversion information Z 'having the memory index information. The present invention includes any device to which the attribute determination transmission processing unit 21 for transmitting and outputting data in a designated manner is applied. In this case, only the index of the output memory 15b corresponding to the transmission line 5 is set in the conversion information Z '. However, by providing the attribute determination transmission processing means 21 in the man-machine device as described above, the number of transmission paths 5 can be increased whenever necessary, and it is possible to easily cope with an increase in plant scale.

[0053]

As described above, according to the present invention ,
By providing the attribute decision transmission processing means, one operation
Set up multiple transmission lines to connect to multiple control devices on the device
As a result, it is possible to optimize the control operation cycle in the control device while maintaining the operability of the operator that the entire plant can be operated from one place even in a large-scale plant, and to operate the plant equipment. The responsiveness can be improved, and the risk of control can be dispersed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the overall configuration of an embodiment of an operating device according to the present invention.

FIG. 2 is a block diagram showing the configuration of a man-machine device in the operating device shown in FIG. 1 in further detail.

FIG. 3 is a diagram illustrating attribute determination according to the present invention.

FIG. 4 is a flowchart showing a processing flow of an output unit according to the present invention.

FIG. 5 is a diagram showing a transmission path configuration of another embodiment of the operating device according to the present invention.

FIG. 6 is a diagram showing a transmission path configuration of another embodiment of the operating device according to the present invention.

FIG. 7 is a diagram showing a transmission line configuration of another embodiment of the operating device according to the present invention.

FIG. 8 is a block diagram showing a configuration of a conventional operation device.

FIG. 9 is a diagram illustrating an operation request process from a monitoring / operation screen according to the related art.

FIG. 10 is a diagram illustrating the operation of the control device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Plant equipment 2 ... Driving device 3 ... Control device 4, 4 '... Man-machine device 5 ... Transmission line 11 ... Display means 12 ... Operation input means 13, 13 'Data input / output processing means 14a ... Transmission input means 14b ... Transmission output means 15a ... Input memory 15b ... Output memory 16 ...... Input means 17 Display control means 18 Determination means 19, 19 'Output means 21 Attribute determination transmission processing means

Claims (1)

(57) [Claims] 1. A control device for driving and controlling plant equipment.
Connected via a transmission line to operate and operate the plant equipment
A table displaying predetermined information including a state of the plant equipment in the operating device.
Indicating means and an operation input for inputting an operation request for the plant equipment
Means for operating the plant equipment from the operation input means
Control device corresponding to each plant equipment in advance according to request
And the specified information based on the transmission path settings.
Control device for driving and controlling a runt device and the control device
Determines the transmission path to which the
Output the device operation command signal with
Attribute determination transmission processing means
Operating device.