JPH06274298A - Monitoring device for control apparatus - Google Patents

Abstract

PURPOSE:To attain a control apparatus monitoring device capable of easily setting up and changing the various operation status displays and abnormal status displays of the apparatus by using a picture file with simple constitution. CONSTITUTION:Picture position coordinates and display symbol numbers are stored in a picture information defining file 11 and an apparatus name, an operation system, a driving signal, an answer signal, and a trip signal are defined in a control apparatus defining file 34. An operating signal preparing part 35P prepares an operating signal based upon a signal outputted from both a control apparatus and the information defined in the file 34 and stores the signal in an operating signal table 35. On the other hand, an abnormal signal preparing part 37P prepares an abnormal signal based upon both the signal outputted from the control apparatus and the information defined in the file 34 and stores the signal in an abnormal signal table 37. A display judging part 12 refers to the tables 35 to 37 and judges display colors, automatic/manual and the presence/absence of a flicker to adjust the display of the apparatus symbol on the position defined in the file 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device monitoring device for monitoring the operating state of control devices used in plants and the like.

[0002]

2. Description of the Related Art As a conventional device monitoring device for monitoring a control device such as a plant, there is a device described in JP-A-2-157910. In this device monitoring device, the operating state symbol is separately displayed on the display means in the vicinity of the symbol representing the control function of the plant. This operating state symbol is, for example, an input signal used for changing each operating state symbol, such as a change in display color when the valve is fully opened and fully closed, a graphic change between automatic and manual, and the like. Behavior is defined.

FIG. 11 is a schematic block diagram of a conventional equipment monitoring apparatus. In FIG. 11, the control panel 8 that controls the on / off valve 6 and the pump 7, which are control devices, performs signal combination via the process input / output unit 320 in the device operation control unit 300. Status signals such as command signals are stored in the input / output signal table 330. In the input / output signal table 330, a series of numbers is assigned to each signal, and this number corresponds to the arrangement of connection terminals when the process input / output section 320 and each control device are connected by construction wiring. Will be decided. In order to display the states of the on / off valve 6 and the pump 7 on the device monitoring screens 5a and 5b on the operator's console 100A,
Screen information definition files 110a, 110b ... Defined for each of the screens 5a, 5b.
(For example, 256 files), color change, flicker (flashing), etc. are individually designated.

In the example of FIG. 11, the screen information definition file 1
The device control screen 5a is displayed by the display control unit 12A according to the contents of 10a. Further, the device monitoring screen 5b is displayed according to the contents of the screen information definition file 110b. In order to specify the color change of the valve symbol 51 in the device monitoring screen 5a, the screen information definition file 110
The area coordinates (40, 20) of the symbol 51, the designated color “green → magenta”, and the factor signal “DI001” are defined by a. Here, the factor signal is a signal number in the input / output signal table 330.

Further, in order to specify a flicker, the area coordinates (40, 20) of the same symbol 51 are separately provided.
And the cause signal “DI002” is defined. Then, when the signal DI001 is output from the input / output signal table 330 when the file 110a is selected, the screen 5
The color of the symbol 51 of a is changed from green to magenta.
When the signal DI002 is output from the input / output signal table 330, the symbol 51 on the screen 5a blinks.

Next, in another device monitoring screen 5b,
The valve symbol 51 is displayed at a position different from the screen 5a. Therefore, the screen information definition file 110
In b, in order to specify the color change of the symbol 51, for example, the area coordinates (05, 10), the specified color “green → magenta”, and the factor signal “DI001” are defined. In order to specify the flicker, the area coordinates (05, 10) of the same symbol 51 and the factor signal “DI” are separately provided.
002 ”is defined. Then, when the signal DI001 is output from the input / output signal table 330 when the file 110b is selected, the symbol 51 on the screen 5b is displayed.
Color changes from green to magenta. When the signal DI002 is output from the input / output signal table 330, the symbol 51 on the screen 5b blinks.

As described above, the color change for displaying the operating state and the flicker for displaying the abnormal state are performed for each screen.
It is set individually. Further, when displaying symbols for the same control device on several screens, it is necessary to specify signals for each screen.

In addition, the document "Automation Vol. 34,
No. 20, "pages 29-33, November 1989 issue,
The method of displaying an abnormal state of plant control equipment and the method of confirming the abnormal state described in Nikkan Kogyo Shimbun Co., Ltd. are also shown in FIG.
Similar to the first example, color change, flicker, etc. are individually defined for each device. Further, in this document, it is described that the process output signal is connected to the corresponding process input signal by hardware or logically connected by software, and the sequence control of the device is simulated.

A monitoring control device described in Japanese Patent Laid-Open No. 2-22776 is similar to the above monitoring device for control equipment. In this supervisory control device,
A plurality of monitoring items of the monitored device are stored in the storage means in a predetermined order, and the order can be changed as necessary.

[0010]

However, in the above-mentioned prior art, in order to monitor the state of the plant control equipment, the operation answer signal for each control equipment (in the case of equipment without an operation answer signal, the operation answer signal is operated) is used. It was necessary to set a command signal) for each display screen file in order to change the color of the device symbol for indicating the operating state. Further, in order to display the automatic / manual operation mode of the device, it is necessary to set an operation mode signal for each display screen file separately from the device symbol indicating the operation state. In particular,
When symbols for the same device are displayed on several screens, it is necessary to set a signal for each screen file even though the same device is used. Therefore, the configuration of the screen file is complicated, and the signal setting work is very complicated. In particular, if the signal address of the device is once set and then the signal address is changed, the settings of many screen files must be changed, which is not only complicated but also
There was a high possibility of setting mistakes. Further, when the number of device monitoring screens increases due to the addition of devices, etc., it is necessary to create a new complicated screen file corresponding to the increased screens, which is a complicated task. In order to detect a traffic jam condition, that is, to detect an abnormal condition in which the control device does not operate even though the operation command signal is output from the control device, a logic circuit for detecting an abnormality is considered in consideration of the operation method for each device. Had to be created separately, and the large-scale configuration was complicated. Further, in order to represent an abnormal state, it is necessary to define a flicker or the like for each device monitoring screen by using a digital internal signal obtained by the logic circuit for abnormality detection. Therefore, the work is complicated, and when the signal address of the device is changed, it is necessary to correct many screen files.

Further, in the past, in order to construct a simulation circuit that uses an operation command signal as a pseudo operation answer signal, a separate logic circuit must be created, and if the device address changes, the logic I had to reconfigure the circuit. Therefore, the work is complicated.

An object of the present invention is to realize a monitoring device for a control device, which can easily set and change various operation status displays and abnormal status displays of a device with a screen file having a simple structure.

[0013]

In order to achieve the above object, the present invention is configured as follows. In a monitoring device for a control device, which includes an operation control unit for controlling the operation of a plurality of control devices and a display unit for displaying the device monitoring screen of the control device, the device signal input / output unit and the control device. The input / output signal type code of the control device is based on the control device definition file that is stored for each control device and the input / output signal type code. An in-operation signal creation unit that creates a signal indicating whether or not a display, a screen information definition file that stores the device symbol graphic display position on the control device monitoring screen, and the control device number, and a symbol graphic from the operating signal. And a display control unit for displaying the device symbol of the display position defined in the screen information definition file by the above-mentioned determined display method.

Preferably, in the control device monitoring device, whether or not the control device is abnormal from the input / output signal of the device signal input / output unit based on the type code of the input / output signal stored in the control device definition file. Further, the display control unit determines the display method of the symbol graphic from the operating signal of the operating signal generation unit and the abnormal signal of the abnormality detection unit, and the display control unit determines the screen information. The device symbol at the display position defined in the definition file is displayed by the determined display method. Further, preferably, in the above monitoring device for control equipment, equipment abnormality confirmation means is further provided, and when the abnormality signal indicates equipment abnormality, the display control portion blinks the symbol graphic of the corresponding equipment to display the equipment abnormality. When the abnormality confirmation means confirms the abnormality, the blinking of the symbol graphic is stopped.

Preferably, in the control device monitoring device, a simulation mode setting means, a means for converting a type code of an input / output signal stored in the control device definition file into an input / output signal, and a simulation mode setting means. Depending on the setting of, the normal mode for inputting / outputting signals between the control device and the operation control section or the simulation mode for inputting / outputting signals between the input / output signal conversion means and the operation control section is switched. Switching means,
Is further provided. Further, preferably, in the monitoring device of the control device, an operation mode table indicating whether the control device is in the automatic mode or the manual mode is further provided, and the display control unit controls based on the operation mode table. Change the color around the symbol graphic depending on whether the device is in manual mode or manual mode.

Further, in a control device monitoring device having an operation control section for controlling the operation of a plurality of control devices and a display means for displaying a device monitoring screen in which the control devices are symbolic figures, a plurality of control devices can be provided. A device signal input / output unit that outputs a drive signal and inputs a response signal, and a control device that stores the drive signal type code, the response signal type code, and the trip signal type code for each control device. Based on the definition file and the type code stored in the control device definition file, create a signal that indicates whether the control device is operating or stopped from the drive signal or response signal of the device signal input / output section Based on the part and type code,
An abnormality detection unit that creates an abnormality signal indicating whether or not the control device is abnormal from the trip signal, drive signal, or response signal of the device signal input / output unit, the display position of the device symbol graphic, and the control device number are stored. The device at the display position defined in the screen information definition file is used to determine the display color and blinking of the symbol graphic from the screen information definition file, the operating signal of the operating signal creation unit, and the abnormal signal of the abnormality detection unit. And a display control unit that displays the symbol in the determined display color. Preferably, in the control device monitoring device, the abnormality detection unit compares the drive signal and the response signal, and determines that the control device is abnormal when the mismatched state continues for a predetermined time or more.

[0017]

Operation: For each control device, the device number that is the type code.
The drive signal and the response signal are defined in the control device definition file. As a result, signals such as an in-operation signal indicating the operation state of the device and an abnormal device signal are created by the in-operation signal creation unit and the abnormality detection unit. For each device monitoring screen, the display position of the device display symbol and the device number.
And are defined in the screen information definition file. Then, from the operating signal and the device abnormality signal, the display screen control unit determines the display method of the device symbol, by the determined display method,
Change the color of the display symbol at the position defined in the screen information definition file. When creating the device monitoring screen, the device number. Only the display position of the display symbol on the screen is required. In particular, when the same control device is displayed on several screens, the labor required for registration is reduced as compared with the case of individually specifying signals. When the signal assignment of the drive signal corresponding to the control device and the response signal is changed, the control device No. It is only necessary to change the definition corresponding to, and there is no need to change the device monitoring screen.

[0018]

Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic configuration diagram of a monitoring device for plant control equipment according to an embodiment of the present invention, and FIG.
It is a simplified external view of the said monitoring apparatus. In FIG. 3, the operator's console 1 is connected to a device operation control unit 3 via a communication connection line 2 and exchanges control data and plant data with the control unit 3.

The equipment operation control unit 3 transmits and receives signals to and from the plant equipment, and periodically executes sequence control calculation. The equipment operation control unit 3 is connected to an on / off valve 6 which is a control equipment via a construction wiring 4. It transmits commands for opening / closing operations and receives limit answer signals that indicate opening / closing states. In addition, the control unit 3 is connected to the pump 7 which is a control device via the control panel 8 and starts up from the control unit 3.
The stop command signal is supplied to the pump 7 via the relay circuit 81 in the control panel 8. For example, when the command signal becomes "H" level, the pump 7 is started, and when it becomes "L" level, it is stopped. The control unit 3 also receives an abnormal trip signal from the pump 7 and a drive answer signal from the control panel 3.

The operator's console 1 monitors the operating state of the plant and operates the control equipment. In the operator's console 1, a designated screen among a plurality of device monitoring screens 5 can be called by operating the operation input means 9 from a plurality of monitoring operation screens. The device monitoring screen 5 is an image simulating the flow of the plant, and the operating state of each control device and the presence / absence of an abnormality are displayed in the screen by symbol color change and flicker. The symbol 51 corresponds to the on / off valve 6, and the symbol 52 corresponds to the pump 7. The open state of the on / off valve 6 and the starting state of the pump 7 are magenta, and the closed state of the on / off valve 6 and the stopped state of the pump 7 are green. Is displayed.

When an abnormality occurs in each control device, the symbol of each control device is changed to red and flicker (blinking)
To do. After the operator confirms the occurrence of the abnormality, the confirmation switch 91 on the operation input means 9 is pressed, so that the flicker of the symbol is stopped and the symbol is displayed in red.
Then, when each control device returns to the normal state, the normal operation state is displayed, and the symbol of each control device becomes green or magenta.

Next, in FIG. 1, the signals from the respective control devices are transmitted through the process input / output unit 32 and the input / output signal table 33 of the device operation control unit 3 during operation signal generation unit 35P and abnormality detection unit 37P. Is supplied to. Signal generator 3 during operation
5P includes signals from the signal table 33 and a control device definition file 34 (a plurality of files 3 corresponding to each control device).
4-1 to 34-n), the operating signal is created and set in the operating signal table 35. The operating signal table 35 has a storage area corresponding to each control device.

The operating signal generator 37P detects an abnormality of the device from the signal from the signal table 33 and the information of the control device definition file 34, and outputs the abnormal signal table 37.
Set to. The abnormal signal table 37 has a storage area corresponding to each control device. An operation mode signal table 36 stores signals indicating whether each control device is manual or automatic. Like the tables 35 and 37, the operation mode signal table 36 also has a storage area corresponding to each control device.

The operator's console 1 is provided with a screen information definition file 11 (consisting of files 11a, 11b, ... 11n corresponding to a plurality of monitoring screens). Then, the definition file designated by the command signal from the operation input means 9 is selected from these definition files 11 by the file selection switch 10. Information on the definition file 11 selected by the switch 10 is supplied to the display control unit 12. The display control unit 12 executes the display control of the symbol of the device monitoring screen 5 based on the information stored in the signal tables 35, 36 and 37 and the information stored in the selected definition file 11.

The operator's console 1 further includes a device symbol file 14 and a device abnormality confirmation table 13.
And are provided. And the device symbol file 1
Reference numeral 4 stores the symbol of each device corresponding to the symbol number. Further, the device abnormality confirmation table 13 has a storage area for each device, and is 1 when the device is in an abnormal state and the confirmation switch 91 is pressed, and becomes 0 when the device abnormality is removed. The signal is stored in the storage area.

FIG. 2 shows the device definition file 3 in FIG.
4 is a diagram showing a specific example of an information definition file 11. In FIG. 2, the control device definition file 34 includes a device name, an operation method, a drive signal, and a control signal for each of the files 34-1 to 34-n.
Type codes such as answer signal (response signal) and trip signal are defined. The device name is the control device No. Is displayed in an abbreviation that is easy for the operator to understand, and has no control meaning. Further, the above operation method is a method of giving a drive signal to the control device, and as will be described later, it is operated by one drive signal, set by two drive signals,
It operates as a holding type that is reset.
The drive signal specifies the output signal table number, and one or two is defined depending on the type of operation method.

The answer signal is the on / off valve opening,
The input signal table number corresponding to the state of the control device such as closed is designated, and one or two may be defined, or designation may not be made because there is no answer signal. In addition, the trip signal, when a signal for abnormality detection is taken in from the control device side such as pump,
The corresponding input signal table number is specified.

From the contents of the control device definition file 34 and the input / output signal table 33 defined in this way, the information stored in the operating signal table 35 is the signal creation unit 3
It is set by 5P. The method of setting the operating signal differs depending on the operating method and the presence or absence of the answer signal. Fig. 4 shows the types of operation methods of control equipment. Single-action type of on-off valve, double-action type, status combination type of pump motor,
There are four types of pulse combination type.

That is, in FIG. 4, in the case of the single-acting type of the on-off valve, when the drive signal becomes 1, the device starts the opening operation and opens, and when the drive signal becomes 0, the closing operation starts and closes. Become. As the answer signal in this case, none,
1 point (open signal or closed signal), 2 points (open and closed signal) 3
There are two types. In the case of the double acting type of on / off valve, the drive signal (open side) becomes 1 and the drive signal (close side)
When the drive signal (open side) becomes 0, and the drive signal (close side) becomes 1, the device starts the closing operation and closes. There are three types of answer signals in this case: none, one point (open signal or closed signal), and two points (open and closed signals).

In the case of the pump motor status combination type, when the drive signal becomes 1, the device is started, and when the drive signal becomes 0, the device is stopped. In this case, there are two types of answer signals: none and one (start). In the case of the pulse combination type of the pump motor, when the pulse drive signal (start) becomes 1, the device is started, and when the pulse drive signal (stop) becomes 1, it is stopped. In this case, there are two types of answer signals: none and one (start).

FIG. 5 is a diagram showing an example of a method of creating an operating signal. When there is one type of answer signal as in case 1 shown in FIG. 5A, this signal is set as the operating signal. When there are two types of answer signals, which are open and closed, as in case 2 shown in FIG. 5B, the open side (first answer signal) is used as the operating signal. Further, as in case 3 shown in FIG. 5C, when there is no answer signal, the drive signal is set to the operating signal. As in case 4 shown in FIG. 5D, when there is no answer signal and the pulse is combined, an internal signal that is set by the start signal (becomes 1) and reset by the stop signal (becomes 0) is created. Then, this is used as an operating signal.

In this way, the operating signal generator 35P
The in-operation signal created by
Is stored for each device. In this operating signal, 1 indicates operating or open, and 0 indicates stopping or closed regardless of the type of control device. FIG. 6 is a diagram showing an example of a method of creating an abnormal signal. If there is a trip signal as in case 1 shown in FIG. 6A, this trip signal is regarded as an abnormal signal. Case 2 shown in FIG. 6B is a case where there is no trip signal and there is an answer signal. In this case, the drive signal and the answer signal are compared, and if they do not match, as shown in FIG.
The abnormality detection timer 37T in 7P is started. When the drive signal and the answer signal match, the abnormality detection timer 37T is reset at that time. When the mismatch period exceeds a certain time and the abnormality detection timer 37T times out, the abnormality signal is set to 1 as shown in FIG. When the drive signal has two points such as open and closed, the open side (first drive signal) is used, and when the answer signal has two points, open and closed, the open side (first answer signal) is used. To use.

In the case of a pump motor (pulse combination type), an internal signal created by the operating signal creating circuit 35P, which is set by a start signal and reset by a stop signal, is used as a drive signal and is abnormal. Is detected. Abnormality detection is not performed in the case of a control device that does not have an answer signal. In this way, the abnormal signal table 37 stores the abnormal device state signal for each control device. In this device abnormality signal, 1 indicates abnormality and 0 indicates normal or no abnormality detection regardless of the type of control device.

In FIG. 2, the screen information definition file 11 has to be defined. In this file 11, however, it is not necessary to individually define color change, flicker, etc. The definition is based on the concept of “arrange”. That is, the display coordinates of the symbol of the device displayed on the monitoring screen 5, the type of the symbol, and the device number are defined. For example, in the screen information definition file 11a, in order to display the valve symbol 51, the position coordinates (40, 20) of the control device, the symbol number. “2”, device number. "1" is defined. Where the symbol N
o. Is for selecting a device symbol to be used from the device symbols stored in the device symbol file 14. Equipment No. Indicates the control device. And the device No. It is also possible to specify by using the device name instead of. In this way, the definition file 11
The layout information on the screen of the control device is stored.

The display control unit 12 uses the operating signal table 3
5, operation mode signal table 36, abnormal signal table 3
7, the selection switch 10 in the definition file 11
The device No. defined in the file selected in. The in-operation signal, the operation mode signal, and the abnormal signal corresponding to are collected, and the control device symbol display color is changed and flicker is performed. The control device symbol display is green when the operating signal is 0 (closed or stopped), magenta when 1 (open or operating), and the background color of the symbol when the operating mode signal is 0 (manual) ( (See FIG. 7) is gray, and when 1 (automatic) is black.

Further, in the control device symbol display, when the abnormal signal is 1 (abnormal), the symbol display color is flickered in red, and at this time, an alarm confirmation operation can be performed. FIG. 7 is an explanatory diagram of an alarm confirmation operation method. The display control unit 12 displays the device monitoring screen 5 according to the screen information definition file 11, and the device abnormality signal 371, the device abnormality confirmation signal 131, and the signal from the confirmation switch 91 cause the symbol display 51 of the control device in which the abnormality has occurred. Change colors and flicker.

That is, as shown in the operation timing chart of FIG. 8, when a device abnormality occurs and the device abnormality signal 371 becomes 1 at time t0 ((A) of FIG. 8), the symbol display 51 flickers. , Change to red ((D) in FIG. 8)
And (E)). When the device monitoring screen 5 is displayed on the operator's console 1, the flicker is stopped by pressing the confirmation switch 91 of the operation input device 9 at time t1 ((B) of FIG. 8), and at the same time the symbol display 51 is displayed. Device abnormality confirmation signal 13 on the device abnormality confirmation table 13 corresponding to
1 is set to 1 ((C) of FIG. 8). At time t2, when the device returns to normal and the device error signal 371 becomes 0, the device error confirmation signal 131 becomes 0, and the symbol display 551 is displayed.
Is green or magenta. Next, at time t3, when the abnormal signal 371 becomes 1, the symbol display 51 becomes red and flicker occurs. Then, at time t4, when the device returns to normal and the signal 371 becomes 0, the symbol display 51
Is green or magenta, but the flicker is not stopped because the confirmation switch 91 is not pressed. When the confirmation switch 91 is pressed at time t5, the flicker stops.

FIG. 9 is an operation flowchart of the device monitoring apparatus. In step 100 of FIG. 9, the operator inputs the device monitoring screen page N from the operation input means 9.
o. Is specified. Then, in step 101,
The page number for which the selection switch 10 is designated. The definition file corresponding to is selected, and the screen corresponding to the selected file is displayed. Next, at step 102, it is judged whether or not there is a control device on the screen. Then, if there is no control device in the screen, the process proceeds to step 111, and it is determined whether or not it is the refresh cycle of the CRT. If it is not the refresh cycle, the process waits, and if it is the refresh cycle, the process returns to step 102.

If there is a control device in the screen in step 102, the process proceeds to step 103. This step 10
3, the display control unit 12 uses the operating signal table 3
No. 5 corresponding to the device in the selected file with reference to FIG. It is determined whether the operating signal stored in the area is 0 or 1. If the operating signal is 0, the display color of the symbol of the corresponding device is set to green in step 104, and the process proceeds to step 106. If the operating signal is 1 in step 103, the display color of the symbol of the corresponding device is set to magenta in step 105, and step 1
Proceed to 06.

Next, in step 106, the display control section 12 refers to the abnormal signal table 37 and refers to the No. corresponding to the device in the selected file. It is determined whether the abnormal signal stored in the area is 0 or 1. If the abnormal signal is 0, the process proceeds to step 112. If the current display color is red, the previous display color is set and the process proceeds to step 110. If the abnormal signal is 1 in step 106,
Go to step 107. Then, in step 107, the display control unit 12 refers to the device abnormality confirmation table 13 and determines whether the device abnormality confirmation signal is 0 or 1. If the confirmation signal is 0, in step 108, the display color of the symbol of the corresponding device is set to red to cause flicker, and the process returns to step 106. If the device abnormality confirmation signal is 1 in step 107, the process proceeds to step 109, and the display color of the symbol of the corresponding device is set to red, and the flicker is stopped.

Then, in step 110, the display control section 12 judges whether or not all the control devices being displayed have ended. If not, the process returns to step 103.
In step 110, if all the control devices have been completed, the process proceeds to step 111, and it is determined whether or not it is the CRT refresh period. If it is not the refresh cycle, it waits, and if it is the refresh cycle, step 10
Return to 2.

As described above, according to the plant control equipment monitoring apparatus of the embodiment of the present invention, the screen position definition, the display symbol No.
The control device definition file 34 defines the device name, operation method, drive signal, answer signal, and trip signal. Then, the in-operation signal creation unit 35P creates an in-operation signal (a signal indicating whether it is in operation or stopped) from the signal from the control device and the information defined in the definition file 34, and the in-operation signal table 35 is created. Is stored. Further, the in-operation signal creating unit 37P creates an abnormal signal (a signal indicating whether or not it is abnormal) from the signal from the control device and the information defined in the definition file 34, and stores it in the abnormal signal table 37. . Then, the display determination unit 12
By referring to the tables 35, 36, and 37, the display color, automatic / manual, and the presence / absence of flicker are determined, and the display of the device symbol at the position defined in the definition file 11 is adjusted. Therefore, the screen information definition file 11 has a simple structure and information can be easily input. And
When the drive signal and operation answer signal of each control device are changed, only the corresponding control device definition file 34 needs to be modified, and it is not necessary to change the definition file 11, which facilitates the change work. In addition, the device N of the control device
o. Is changed, N of files 34 and 11 is changed.
o. You can easily respond by simply changing. In addition, if the number of monitor screens increases due to equipment expansion, etc.
Device N is the definition file for the new screen.
o. , Symbol No. , Only the coordinate position needs to be defined.

FIG. 10 shows an example of the configuration when the operation simulation of the control device is performed using the definition information of the control device definition file 34 in the example of FIG. The device number of the control device. Corresponding to the simulation mode signal (1
Simulation mode signal table 38 (simulation mode setting means) in which the simulation is stored. Simulation mode signal (0,
The setting of 1) is performed using the operation input means 9 of the operator's console 1. The process input signal 331 and the process output signal 332 correspond to the numbers of the answer signal and the drive signal defined in the control device definition file 34.

When the simulation mode signal is 0, the operation changeover switches 313 and 314 are on the process side, the process input signal 331 is the valve answer signal 61, and the process output signal 332 is the drive signal for the on / off valve 6. Has become. Where table 38
Device No. When the simulation mode signal corresponding to 1 is 1, the operation changeover switches 313 and 314 are on the simulation side, and the process output signal 332 is
It is connected to the process input signal 331 via the delay timer 312. If the set value of the delay timer 312 is set equal to the time from the supply of the drive command to the on / off valve 6 to the completion of the operation, the operation can be simulated even if the control device is not connected. The control circuit 311 and the like can be tested.

Thus, according to one embodiment of the present invention,
Control device definition file 3 that does not require a separate logic circuit
4. Using the simulation mode table 38, it is possible to simulate plant equipment with a simple operation.

Although the above-mentioned example is an example in which the present invention is applied to the monitoring device of the plant control equipment, the present invention is also applicable to the monitoring device of the control equipment of other systems. For example, it can be applied to a monitoring device for equipment in a building.

[0047]

Since the present invention is constructed as described above, it has the following effects. In a monitoring device for a control device, which includes an operation control unit for controlling the operation of a plurality of control devices and a display unit for displaying the device monitoring screen of the control device, the device signal input / output unit and the control device. The input / output signal type code of the control device is based on the control device definition file that is stored for each control device and the input / output signal type code. An in-operation signal creation unit that creates a signal indicating whether or not a display, a screen information definition file that stores the device symbol graphic display position on the control device monitoring screen, and the control device number, and a symbol graphic from the operating signal. And a display control unit for displaying the device symbol of the display position defined in the screen information definition file by the above-mentioned determined display method. Therefore, it is possible to realize a monitoring device for a control device in which it is easy to set and change various operation status displays and abnormal status displays of the device with a screen file having a simple configuration.

[Brief description of drawings]

FIG. 1 is a schematic overall configuration diagram of a monitoring device for process control equipment according to an embodiment of the present invention.

2 is a diagram showing an example of information storage in a definition file in the example of FIG.

FIG. 3 is a schematic external view of a plant control equipment monitoring device of the present invention.

FIG. 4 is a diagram showing operation system types of a control device.

FIG. 5 is an explanatory diagram of a method of generating an in-operation signal of the control device.

FIG. 6 is an explanatory diagram of a method of creating a device abnormality signal.

FIG. 7 is an explanatory diagram of a method of confirming the occurrence of an abnormality in a control device.

FIG. 8 is a time chart of signals generated when an abnormality occurs in a device.

FIG. 9 is an operation flowchart of one embodiment of the present invention.

FIG. 10 is a diagram showing a configuration example of a simulation circuit of a control device according to an embodiment of the present invention.

FIG. 11 is a schematic configuration diagram of an example of a conventional control device monitoring apparatus.

[Explanation of symbols]

1 Operator's Console 2 Communication Connection Line 3 Equipment Operation Control Section 4 Construction Wiring 5 Equipment Monitoring Screen 6 On / Off Valve 7 Pump 8 Control Panel 9 Operation Input Means 10 Selection Switch 11 Screen Information Definition File 12 Display Control Section 13 Equipment Abnormality Confirmation Table 14 Equipment Symbol file 32 Process input / output unit 33 Input / output table 34 Control device definition file 35 Operating signal table 35P Operating signal creation unit 36 Operating mode signal table 37 Abnormal signal table 37P Abnormality detection unit 38 Simulation mode signal table 51 Device symbol 91 Confirmation Switch

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Claims (7)

[Claims] 1. A control device monitoring apparatus comprising: an operation control unit for controlling the operation of a plurality of control devices; and a display unit for displaying a device monitoring screen in which the control devices are symbolic figures. A device signal input / output unit that inputs and outputs signals and a type code indicating the type of input / output signal of the control device, the control device definition file that is stored for each control device, and the input device that is stored in the control device definition file. Based on the type code of the output signal, from the input / output signal of the device signal input / output unit,
A screen information definition file that stores an operating signal creation unit that creates a signal indicating whether the control device is operating or stopped, the display position of the device symbol graphic on the control device monitoring screen, and the control device number, A display control unit that determines the display method of the symbol graphic from the operating signal of the operating signal generation unit and displays the device symbol at the display position defined in the screen information definition file by the determined display method. A monitoring device for control equipment characterized by the above. 2. The control device monitoring device according to claim 1, wherein the control device is abnormal from the input / output signal of the device signal input / output unit based on the type code of the input / output signal stored in the control device definition file. Further, the display control unit determines the display method of the symbol graphic from the operating signal of the operating signal generation unit and the abnormal signal of the abnormality detection unit. Then, the monitoring device for the control device, wherein the device symbol at the display position defined in the screen information definition file is displayed by the determined display method. 3. The control device monitoring device according to claim 2, further comprising a device abnormality confirmation means, wherein the display control unit, if the abnormality signal indicates a device abnormality, a symbol of the corresponding device. A monitoring device for a control device, characterized in that a blinking of a symbol graphic is stopped when the abnormality is confirmed by the device abnormality confirmation means. 4. The control device monitoring apparatus according to claim 1, wherein a simulation mode setting means, a means for converting an input / output signal according to a type code of the input / output signal stored in the control device definition file, and a simulation mode setting. According to the setting of the means, a normal mode for inputting / outputting signals between the control device and the operation control section, or a simulation for inputting / outputting signals between the input / output signal conversion means and the operation control section is performed. A monitoring device for control equipment, further comprising: switching means for switching. 5. The control device monitoring apparatus according to claim 1, further comprising an operation mode table indicating whether the control device is in an automatic mode or a manual mode, and the display control unit stores the operation mode table in the operation mode table. On the basis of the above, based on the control device, the color around the symbol graphic is changed depending on whether the control device is in the manual mode or the manual mode. 6. A control device monitoring apparatus comprising: an operation control unit for controlling the operation of a plurality of control devices; and a display unit for displaying a device monitoring screen consisting of the symbol graphic of the control devices. Device signal input / output section that outputs a drive signal to the control device and inputs response signals from a plurality of control devices, a control device drive signal type code, a response signal type code, and a trip signal type code, Based on the control device definition file that is stored for each control device and the type code stored in the control device definition file, whether the control device is operating or stopped based on the drive signal or response signal of the device signal input / output section. Based on the type code stored in the control device definition file and the operating signal creation unit that creates the signal that indicates the signal from the trip signal, drive signal or response signal of the device signal input / output An error detection unit that creates an error signal that indicates whether the control device is abnormal, a screen information definition file that stores the display position of the device symbol graphic on the control device monitoring screen, and the control device number, and the operating signal The display color of the symbol graphic and the presence or absence of blinking are determined from the operating signal of the creation unit and the abnormality signal of the abnormality detection unit, and the device symbol at the display position defined in the screen information definition file is displayed with the determined display color. A monitoring device for control equipment, comprising: a display control unit for displaying with and. 7. The control device monitoring apparatus according to claim 6, wherein the abnormality detection unit compares the drive signal and the response signal, and when the disagreement state continues for a predetermined time or longer, the control device is abnormal. A monitoring device for control equipment, characterized by determining that there is.