JPH05284569A - Operating device - Google Patents

Abstract

PURPOSE:To provide an operating device which can secure the high controllability and the high control responsiveness even to the plant equipments of a plant of a large scale and also can disperse the danger of control. CONSTITUTION:Plural controllers 3 which control a plant equipment 1 are connected to a man-machine device 4' via plural transmission lines 5. The device 4' contains a display means 11 which displays the states of the equipment 1 and an operation switch and an operation input means 12 which inputs an operation request given to the equipment 1. Furthermore the device 4' is provided with an attribute decision/transmission processing means which decides a transmission line of the controller which controls the drive of an operating equipment based on the operating request inputted from the means 12 and then transmits an operating command signal to the transmission line.

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 plurality 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 due to recent digitization and transmission.
Especially, in a large-scale plant, digital decentralized control and functional integration of the instrumentation / control system have been promoted.

In conventional relay sequence / analog control and hard-wired wiring, the control equipment of the plant equipment becomes large, but the amount of cables becomes enormous, so that the plant construction cost is high and the control equipment is installed. This was due to the problems that it required a lot of space, there was a limit to the realization of intelligent and sophisticated plant control, and it was difficult to implement remote control.

FIG. 8 shows a conventional example of an operating device in such digital transmission, in which 1 is a plant device, 2 is a driving device for driving the plant device 1, and 3 is a driving device 2. Control device 4 for sending control signals, control device 3
The man-machine device 5 for sending a manual operation signal of the plant equipment 1 to the plant machine 5 is a transmission path for transmitting data between the man-machine device 4 and the control device 3.

In this configuration, when the plant equipment 1 is operated, the man-machine apparatus 4 transmits an operation request input by the operator to the man-machine apparatus 4 to the control apparatus 3 via the transmission path 5, and the control apparatus 3 further operates. This is achieved by performing control calculation for the operation request and transmitting the result to the drive device 2.

Here, the man-machine device 4 has a display means 11 for displaying the state 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. In addition, an operation input means 12 for selecting and inputting predetermined information in accordance with a message and a data input / output processing means 13 for transmitting / outputting data from the operation input means 12 and displaying / outputting data from the control device 3, respectively. It is configured so that not only the plant equipment can be monitored but also the operation can be performed by interacting with the plant equipment monitoring / operation screen as shown in FIG.

Further, the data input / output processing means 13 of the man-machine device 4 includes the input transmission means 14a, the output transmission means 14b, and the input transmission means 14a for exchanging data between the data input / output processing means 13 and the transmission path 5. Input memory 15a for storing data of the above, output memory 15b for storing data to be passed to the output transmission means 14b, input memory 15a
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 judgment means 18 for detecting and judging the signal inputted by the operation input means 12, and the judgment means 18. The output means 19 creates output data based on the above data.

The operation of the conventional operating device thus configured 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 drive 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 path 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, then detected by the input means 16 and the monitor / operation screen of the display means 11 is displayed by the display control means 17. Is displayed by being reflected on the device symbol 0 (i) in the graphic area V of. That is, the display control means 17 coordinates the device symbol 0 (i) of the plant device 1 (i) on the graphic area V based on the graphic data D _V as shown in FIG. X (i)
The value of the process signal U (i) is displayed at the position of.

Next, when the operator operates the equipment using this monitor / operation screen, the operator selects the equipment symbol 0 (i) of the equipment 1 (i) to be operated using the operation input means 12. The selected position is converted into a coordinate signal X (i) and passed to the judging means 18.

On the basis of this coordinate signal X (i), the judgment means 18 searches the graphic data D _V currently displayed by the display control means 17 to judge that the device symbol 0 (i) has been selected, and the graphic Device symbol 0 of data D _V
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
Displays the operation switch symbol S of the plant equipment 1 (i) in the operation area G of the monitoring / operation screen based on the received switch data D _G.

Further, when the operator selects one of the switch symbols S in the operation area G by 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 is determined that the switch data is selected, and the switch setting information R (i, j) (i = 1,2, ..., n) (j = 1,2, corresponding to the selected switch symbol S (j) of the switch data D _G is selected. 3,
...) is set to "1" and other switch setting information R (i) is set to "0".

The output means 19 has an operation index t (i).
And the operation command data C having the switch setting information group R (i) are received from the determination means 18, and the operation index t (i) and the operation index t of this operation command data C are received.
The switch setting information group R (i) belonging to the operation index t (i) is specified in the output memory 15b based on the conversion information Z in which the address A (h) of the output memory 15b is preset for each (i). Save to address.

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

The control device 3 (k) has a packet P (which has an identification code that matches the identification code preset in the control device 3 (k) from the output data sent via the transmission line 5. 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 operating state and operation amount of the plant equipment 1 (i) are determined according to the control arithmetic expression E (i), and this equipment drive information is controlled. The drive circuit HO of the device 3 (k) is set to the drive end F (i) for driving the plant device 1 (i), and the device drive command signal is output to the drive device 2 (i).

The drive unit 2 (i) starts and stops the operation of the plant equipment 1 (i) according to the equipment drive command signal from the control unit 3 (k).

The plant equipment 1 operated in this way
The change in the operating state of (i) is transmitted to the man-machine device 4 via the control device control device 3 (k) and the transmission path 5, and the switch symbol S of the device symbol 0 (i) in the operation area G is changed. It is confirmed by changing the display form and color.

As explained above, the operating device according to the prior art is reasonably constructed by applying digitization and transmission.

[0018]

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

When the control equation E of each controller 3 is increased,
Since the number of processes executed by the control device 3 increases, it takes a long time to complete the control calculation of the control device 3, which makes it difficult to perform high-speed control on the plant equipment 1, and sacrifices the high-speed controllability to some extent. When the number of plant equipments 1 to be driven by 3 is increased, there is a high possibility that a lot of means for controlling the plant equipments 1 will be lost when the control device 3 fails, which is not preferable.

That is, the control device 3 needs to measure the risk dispersion, and when viewed from the function of the entire plant, the plant equipment 1 that performs the same function in particular is made redundant (for example, installation of a backup system to the normal use 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).

From the above, it is necessary to increase the number of control devices 3. However, if only one transmission line 5 is conventionally provided, the above-mentioned packet can pass between the man-machine device 4 and the control device 3 at high speed. Therefore, there is a problem that the operation response 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, and as a countermeasure against this, simply provide a plurality of conventional man-machine devices 4 for each transmission line 5. In this case, however, the information of the unconnected transmission path 5 cannot be displayed on the man-machine device 4, which makes it difficult to collectively monitor the entire plant, and the operation of the display means 11 and the operation means at the time of operation execution. Input means 12
Will be limited to specific plant equipment, which may be inconvenient.

Therefore, it is basically necessary to connect a plurality of transmission lines to the man-machine device and to surely output the operation request of the plant equipment to the control device.

The present invention has been made in view of the above circumstances, and improves the controllability of plant equipment.
It is an object of the present invention to provide an operating device that measures the risk dispersion of control and has high operation responsiveness.

[0025]

That is, the present invention relates to a display means for displaying predetermined information including a state of a plant equipment and operation switches, an operation input means for inputting an operation request for the plant equipment, and a plant equipment. At least one control device for inputting an operation command signal to drive and control the plant equipment is transmitted to a man-machine device having a data input / output processing means for outputting an operation command signal for the plant equipment based on an operation request. At least one or more transmission lines to which at least one or more control devices are connected are installed in the operation device connected via the data input / output processing means, and the data input / output processing means outputs the operation command signal of the plant device to the plant device. An attribute determination / transmission processing unit that determines a transmission path to which a control device for drive control is connected and transmits to the transmission path is provided. And it features.

[0026]

In the above structure, when an operation request for the plant equipment is input by the operation input means of the man-machine device, the attribute determination transmission processing means of the data input / output processing means displays which plant equipment is selected. To determine the control device that drives and controls the plant equipment and the transmission path to which the control device belongs, and determine the operation command signal with the identification code for the control device. It is transmitted and output to the transmission line.

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

As described above, according to the present invention, the man-machine device is provided with the attribute determination transmission processing means, and
Since it is possible to connect a large number of control devices to a single man-machine device via a plurality of transmission lines and operate a large number of plant equipment, it is possible to cope with a large-scale plant.

[0029]

Embodiments of the present invention will be described below with reference to the drawings. In addition, the same parts as those of the conventional example will be described with the same reference numerals.

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

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

Next, the operation of the operating device having the above construction 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 using the operation input means 12 on the monitoring / operation screen as shown in FIG. Then, when the switch symbol S of the device 1 (i) displayed in the operation area G on the same screen is selected,
The determination means 18 receives the signals X (i) and Y (j) indicating the coordinates on the screen of the selected position, and the display control means 17 determines the graphic data D _V currently being displayed based on the coordinate signal X (i). 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, ...) is set to “1” and other switch setting information R (i) is set to “0”, and the operation index t
The operation command data C having (i) and its switch setting information group R (i) is passed to the output means 19 '.

Here, the output means 19 'controls the controller 3 (e, k) for driving and controlling the plant equipment l (i) which the operator is going to operate with the setting information of the operation command data C.
(e = 1,2, ..., L) (k = 1,2,3, ...) Determines the attributes for transmission via transmission line 3 (e), and selects among L transmission lines 3 The specific transmission line 3 (e) of is selected.

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

The output means 19 'receives the operation command data C as shown in the flow chart of 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 the output memory 15b (e) specified earlier
The switch setting information group R (i) is set (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) is shown in FIG.
As shown in FIG. 5, the setting information is divided into specific addresses in the output memory 15b (e), and the specific control device 3 (e, k) connected to the transmission line 3 (e) is addressed to the specific address. With an identification code to identify that, the packet P (e, k)
Is generated and output to the transmission line 3 (e).

On the other hand, the control device 3 (e, k) receives the above-mentioned packet P (e, k), determines the identification code, and preliminarily controls the control device 3 (e) as described in the conventional example. packet P (e, k) that matches and matches the code information set in e, k)
Of the control device 3 (e, k) into the receiving memory HI of the control device 3 (e, k), and based on the received switch setting information group R (i) and other process signal information, control operation formula E ( i) The calculation is determined based on the controller 3 (e, k)
The device drive command signal is output to the drive device 2 (i) by setting the device drive information in the drive end F (i) that drives the plant device 1 (i) of the drive circuit HO included in the device.

Here, the plant equipment 1 (i) and the drive unit 2
(i) constitutes a circuit corresponding to the drive end F (i). Therefore, it is possible to start and stop the operation of the plant device 1 (i).

As is apparent from the above description, in the operating device having the above-mentioned configuration, the input transmission means 14a and the input transmission means 14a corresponding to the plurality of transmission lines 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', and determines the control device 3 of this control device 3. Since the transmission line 5 to which it belongs is decided, it is possible to operate the plant equipment 1 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 according to the control response of the plant equipment, and high speed control,
It is possible to obtain an operating device capable of executing intelligent and advanced control.

Furthermore, it becomes possible to obtain an operating device in which the loss of function of the entire plant due to the failure of a single control device is suppressed to a minimum.

In the above embodiment, the method in which the plant equipment 1 is driven by one shot is used for the sake of simplification of description, but a continuous drive amount like a controller is used for the man-machine device 4. It is also possible to output to the specific transmission line 5 and the control device 3 from '. In this case, the switch setting information R is set with a deviation amount between the current value and the set value, a set value, or a value that can be converted into an analog value. Also,
A method in which the control device 3 drives the plant equipment 1 while the value of "1" is set is also conceivable. Corresponding to each processing method, the determination means 11, the output means 19 ', and the display control means 1 are provided.
This can be easily achieved by changing the configuration of 7.

Although the star type transmission line 5 is used in the above embodiment, the bus type transmission line as shown in FIG. 5, the loop type transmission line as shown in FIG. 6, or a mixture thereof. It is also conceivable to form 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. In either case, the output memory index that determines the transmission path 5 is preset, so that the configuration can be easily achieved. However, in the configuration in which another transmission line 5 is connected from the transmission line 5, the output memory index is defined two-dimensionally, and the address is also defined two-dimensionally correspondingly. That is, when increasing the number of transmission lines in this embodiment, the output memory index and address are defined by increasing the number of dimensions.

Further, in the above embodiment, the input transmission means 1
4a and output transmission means 14b are paired and dedicated for input and output. This operation is performed when necessary (output), but monitoring (input) is always performed, so mutual interference is prevented. It is a composition made to help Therefore, input transmission
If it is considered that monitoring and operation will not be affected even if output transmission is alternately performed (transmission in two directions), input,
The object of the present invention can also be achieved by using a transmission means that executes outputs alternately.

Further, in the above-mentioned embodiment, the transmission network is constructed by wire, but ultrasonic waves, infrared rays, F
It may be configured by a wireless system such as one using radio waves such as M waves.

The operation input means 12 in the operating device of the present invention is a touch screen, a mouse, a light pen,
Any pointing device such as a tablet achieves the same effect and achieves the object. Further, in the above-mentioned embodiment, the operation input means 12 detects the coordinates of the display means 11. It may be a switch with lamp or a twist type switch with lamp. At this time, these switch signals can be achieved by determining which plant equipment 1 is to be operated in what kind of state by the determining means 18 and generating the operation command data C.

Further, in the above embodiment, the display means 11 is shown as a single unit, but in consideration of operating different plant equipments 1 simultaneously, a plurality of display means 11 and a plurality of operations corresponding thereto are performed. The input means 12 may be provided and configured.

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

In the above embodiment, the output memory 15b
However, if the address does not interfere with those for the other transmission paths 5 and the address for the specific transmission path 5 is secured, the number may be one or several. In this case, the output transmission means 14b has previously determined which output memory 15b
It is necessary to program the device from which address to generate the packet. For the same reason, the input memory 14a may be composed of one or several.

In the above embodiment, the output means 19 'activates the output transmission means 14b. However, when the transmission means of the method in which the packet P always communicates periodically is applied, This starting process is unnecessary.

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

Further, in the above-described embodiment, the configuration in which there are a plurality of transmission lines 5 has been described. However, even if there is only one transmission line 5, the transmission line 5 is converted by the conversion information Z'having the memory index information. The present invention is included as long as the attribute determination transmission processing means 21 for transmitting and outputting the designated data 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 in this way, it is possible to increase the number of transmission lines 5 whenever necessary, and it is possible to easily cope with an increase in plant scale.

[0053]

As described above, according to the present invention,
Since the man-machine device is provided with the attribute determination transmission processing means and a plurality of transmission lines having a plurality of control devices can be connected to one man-machine device, the operator can operate the entire plant from one place even in a large-scale plant. While maintaining operability, it is possible to optimize the control calculation cycle in the control device, improve operation responsiveness, and
It is possible to measure decentralization of control risk.

[Brief description of drawings]

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

FIG. 6 is a diagram showing a transmission line 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 operating device.

FIG. 9 is a diagram illustrating an operation request process from a monitoring / operation screen according to a conventional technique.

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

[Explanation of symbols]

 1 ……………… Plant equipment 2 ………… Drive 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)

[Claims] 1. A display means for displaying predetermined information including a state of a plant equipment and an operation switch, an operation input means for inputting an operation request for the plant equipment, and an operation for the plant equipment based on the operation request for the plant equipment. An operation in which at least one control device for inputting the operation command signal to drive and control the plant equipment is connected to a man-machine device having a data input / output processing means for outputting a command signal via a transmission line. In the apparatus, at least one or more transmission lines to which the at least one or more control devices are connected are installed, and the data input / output processing means drives and controls an operation command signal of the plant device. Is provided with attribute determination transmission processing means for determining a transmission line connected to the transmission line and transmitting the transmission line to the transmission line. Apparatus.