JP3015926B2 - Display device for local control panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for a local control panel which is installed on a local control panel for controlling equipment separated from a central control panel and used for monitoring operation of a plant.

[0002]

2. Description of the Related Art Conventionally, an automatic voltage regulator for a synchronous generator.
Or local control panel, such as turbine controller, LED indicator is installed on the board, it has been displayed numbers and alarm with the LED display.

In addition, a touch panel is provided on the local control panel .
By installing and operating this touch panel, L
The display contents on the ED display are switched and displayed.

[0004]

However, when the LED display and the touch panel are installed on the local control panel as in the above-mentioned prior art, a large space for installing them is required. Further, in the LED display, a touch panel, for setting and confirmation of the information necessary for control is difficult, information monitoring time and setpoint operation many and complicated next time changes, with prone operational errors, once the
There is a problem that only a limited type of information can be output.

Further, when the set value is changed, the original old setting
If you don't write down the values, try changing the settings several times
It is difficult to undo while you are. In particular, multiple configurations
If the value is changed in relation to the fixed value, the tendency becomes remarkable.
It is increasingly difficult to return to the state at the start of setting value change.
Become.

An object of the present invention is to provide a method for changing a set value,
To change the set value of
Local with means to facilitate return to initial state
An object of the present invention is to provide a control panel display device.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a touch-operable display and the display.
Display means and tools for displaying information in a tree structure on the spray
One of the information displayed in the tree configuration is selected by touch operation.
Display switching means for switching display information when
A local control panel, which is installed on a local control panel for controlling the equipment separated from the central control panel and used for monitoring the operation of the plant. a new set value and former set value serial
Remember and at least one set of
The set value for displaying the new set value and the old set value together, rewriting the new set value as the old set value when updating the set value, and rewriting the new set value input at the time of the update as the new set value and rewriting means, and writing the set value during the writing of the new set value is stopped
In this case, a display device of a local control panel provided with setting value return means for writing back the old setting value as the current setting value.

[0008] The present invention is, also, for achieving the above objective
In addition to the setting value rewriting means and the setting value returning means,
In addition, the manual screen extinguishing panel
When touched, or when the touch operation or alarm output is not generated a predetermined time, the display is turned off, when the touch operation or alarm output is generated
Proposes a local control panel of a display device provided with the off-lighting control means for immediately turning on the display.

[0009]

According to the present invention, the new set value and the old set value set for the local control panel are stored and displayed.
The new set value and the old set value are displayed together on the spray, and the new set value is rewritten as the old set value when the set value is updated, and the new set value input at the time of the update is rewritten as the new set value. Rewriting means and writing of new setting values
When the writing of the setting value is interrupted in the middle of the writing , the setting value restoring means for writing back the old setting value as the current setting value is provided, so that the updating operation can be easily performed, and the writing of the setting value can be performed in the middle. If you want to cancel, stop writing the set value and replace the old set value displayed with the new set value.
It is written back as the current set value while referring to it , and the value before the change of the set value is surely restored. Even if there is an error in the change of the set value, control can be easily returned to the current set value.

In practice, a plurality of sets of new set values and old set values
Is also displayed. That is, the memo of the controller
The current setting value in the memory and the new
Display multiple sets of setting values. Therefore, multiple settings
If you want to change the value in relation to
When trying, you can always refer to the current setting, so change the setting
It is possible to easily and reliably return to the state at the start.
You.

Further, since the light-off / light-on control means is provided,
The display can be turned off when it is not necessary, and can be turned on immediately in an emergency such as when an alarm occurs. In addition,
The setting of the light-off time can be arbitrarily changed on the control controller side.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS.
Of the local control panel display device
I will tell. FIG. 13 shows an example of the appearance of the local control panel.
It is a front view. This local control panel is equipped with a digital automatic voltage regulator (D-AVR Digital- Automatic Voltage
(Regulator) control panel.
, A flat type display 90 and an LED display 92 are attached.

Embodiment 1 FIG. 1 shows a display device of a local control panel according to the present invention.
Showing an example of the configuration of a triple D-AVR in which a device is installed
FIG. 3 Inside the duplex D-AVR, three controller 1, a controller 2, a display 3 and <br/> is provided. The AVR is a device that controls the terminal voltage of the generator 4 to be equal to a preset value. That is, the terminal voltage of the generator 4 is stepped down by the transformer PT and taken into the control controller 1, compared with the set value of the setter in the control controller 1, and the firing angle of the thyristor 5 is changed by the deviation to change the firing angle of the generator 4. This device controls the terminal current of the generator 4 to keep the terminal voltage constant.

The control constants, set values, information used for control, and detected alarms used in the controller 1 are transmitted to the controller 2 via the inter-controller transmission 6.
Sent to The information collected by the controller 2 is input to the display 3 via the controller-display transmission 7 . On the display 3 , information related to control in the controller 1 is displayed. When the display 3 is used, a list of control constants is displayed, and a change in the operating state or the detailed alarm display can be immediately confirmed.

FIG . 2 shows the alarm information in a tree structure on the screen.
It is a figure showing the state where it was displayed. Display 3 on the
Is, information is displayed in the tree structure. On the menu screen 8, for example, when the BPU battery abnormality 8G occurs, all of the high-order items related to the BPU battery abnormality 8G, that is, the sub-controller (1/2) 8F, the A system A
The VR8E, the alarm item 8D and the corresponding line 8H of the tree are changed from green display to red flashing display to notify an abnormal state. When the reset button 8I on the panel surface is pressed during the continuation of the abnormality, the flashing stops from red flashing and changes to red display. In this case, it indicates that the abnormality continues. When the reset button 8I is pressed after returning to the normal state, the line 8H of the tree changes from red display to green display. Further, when the menu return 8J is touch-operated, the screen can be switched to a higher-level screen and displayed. The display color of the tree line 8H is not limited to red or green, and other colors may be used.

<< Embodiment 2 >> FIG. 3 shows a state in which higher-level menu items are displayed on a screen.
FIG. FIG. 4 shows that the alarm item is touched in FIG.
FIG. 6 is a diagram showing the state of the screen switched and displayed at the time.
You. FIG. 5 shows a case where the A-series AVR is touched in FIG.
It is a figure which shows the state of the screen switched and displayed. FIG.
Means that the sub-controller (1/2) is touched in FIG.
FIG. 7 is a diagram showing a state of a screen that has been switched and displayed.

When displaying tree-structured information on the display 3, the information is not displayed all at once as shown in FIG.
As shown in to 6, it may be displayed hierarchically.
When an alarm occurs, a lower screen is designated on the screen shown in FIG. That is, when the alarm item 9A on the menu screen 9 is touched, the screen of FIG. 4 is switched and displayed. Next, when touched A system AVR9B 4, is displayed more in the lower screen 5 is switched, further sub-controller (1/2) in FIG 9C the touch operation, FIG. 6 is OFF
The BPU battery 9 </ b> D is displayed to be abnormal. As for the display method at the time of abnormality, similarly to the tree configuration screen of FIG. 2, green display is performed at normal time , and red blinking or red display is performed at abnormal time. When the reset button 9I is pressed on the display screens of FIGS. 4 to 6, the display returns to the upper screen. That is, when the reset button 9I is pressed in FIG.
Press the reset button 9I in FIG. 5 on the display screen of FIG.
If, on the display screen of FIG. 4, the reset button 9I in Fig press
Then, it is possible to return to the display screen of FIG.

<< Embodiment 3 >> FIG. 7 shows an example between an upper level and a lower level and between the same level.
FIG. 6 is a diagram showing a procedure for switching display screens in FIG. In the above-described second embodiment, only the switching display between the upper level and the lower level of the tree structure is performed. In the third embodiment, the switching display between the upper level and the lower level is performed at the same level.
It is possible to switch the display between them.

In FIG. 7, when a touch operation is performed on A0 or B0 of the large category I, a screen of the middle category II is displayed. When the parent menu return 10 on the middle category II screen is touched, the screen returns to the large category I screen. Further, by touching the arrow key 11 of the middle category II, a screen can be selected between the same levels of the middle category II. Screens at the same level are configured in a loop so that if the arrow key 11 is kept pressed, the screen returns to the original screen.

In addition, A11, A12, B11, B12 of the middle category II
Is touched to display the small category III, and touching the parent menu return 10 on the screen of the small category III returns to the screen of the middle category II. Further subclass I
By touching the arrow key 11 of II, a screen can be selected between the same levels of the minor category III. Screens at the same level are configured in a loop so that if the arrow key 11 is kept pressed, the screen returns to the original screen.

In the third embodiment, the major category I, the middle category II,
Has dealt with the case of being classified into three and subcategories III, be of classified tree structure into four or more, can be applied the third embodiment.

<< Embodiment 4 >> FIG. 8 shows the basic information necessary for plant operation on the screen constantly.
FIG. 6 is a diagram illustrating an example of a time display method. A feature of the fourth embodiment is that basic information necessary for the operation of the plant is always displayed at any place on the display. That is, the menu return 10 is a touch panel for switching from a currently displayed screen to a screen at a higher level. The date / time 15 indicates the time in the controller connected to the display on the display. In the case of triple system, during system A operation 17
a, displaying the control system operation status of the B system operation 17b and the C system operation 17C, displaying the alarm / restriction status of the limit control operation 17d, the alarm item operation 17e, and the AVR operation Displaying the operation mode of the middle 18a and the PSS operation 18b is a matter to be displayed on all the screens for operation monitoring, and whether each system is operating, an alarm is not output, or limit control is performed. It is necessary to be able to grasp at a glance whether or not the latest operating state is present on any screen.

<< Embodiment 5 >> FIG. 9 is a diagram showing an example of a screen configuration for setting constants. Figure
10 is an interrelationship between the means related to the constant setting according to the present invention.
It is a block diagram showing a person in charge.

Next, the configuration of the constant setting will be described with reference to FIGS. In the figure, a screen 21 is displayed when a constant is set. New setting value 19 and old setting value 2 are displayed on screen 21
0 is displayed, the new setting value 19 indicates the current setting value 29 in the controller, and the old setting value 20 indicates the old setting value 30 in the controller. Old setting value 30
Is a value controlled before the current setting value 29. When changing the setting value, the user touches the setting 26 first.
At this time, the current setting value 29 in the controller is written to the old setting value 30. The new setting value 19 and the old setting value 20 on the screen 21 become the same value, and the setting value can be changed. Items set by the return key 22, T1, T2, T3,
T4 is selected, and the set value is changed with the scroll keys 27 and 28. After the setting of the new setting value 19 is completed, the setting value writing Y
By pressing the es key 23, the set value is rewritten.
You.

When it is desired to stop writing the set value in the middle, the No. key 24 and the return key 22 for writing the set value are simultaneously pressed to stop the writing of the set value, and the old set value 30 in the controller is displayed. It is configured to be written to the set value 29 and to return to the value before the change of the set value.

According to the above configuration, even if the setting value is changed incorrectly, it can be immediately returned to the previous setting value, and the writing can be stopped in the middle of the writing. In the case of inputting a setting value, the number is sequentially switched set value input field and the scroll key 27, 28 is touched, the cut
The replacement speed is increased in proportion to the time during which the scroll keys 27 and 28 are touched. Specifically, an integration circuit is provided on the controller side so that the switching speed of the numerical value in the set value input field can be integratedly changed according to the time during which the scroll keys 27 and 28 are pressed.

<< Embodiment 6 >> FIG. 11 is a diagram showing one system of automatic light-off and automatic light-up.
is there. FIG. 12 shows another method of automatic light-off and automatic light-up.
FIG.

Next, the automatic turning on / off of the display screen will be described. When the lighting state as in the screen 31, that is, the device is normal and no alarm is output, the display characters and the like are displayed on the screen 31, and the state where there is no touch operation continues for a predetermined time or more, the screen 33 is displayed. To turn off the screen automatically.

When a touch operation is performed or an alarm is output while the screen is turned off as in the screen 33, the screen is automatically turned on as in the screen 34. In this case, the display characters 32 displayed before the automatic light-off is displayed on the screen 34 as they are, and when an alarm is output, an alarm display 35 is also displayed. The screen is not turned off during alarm output .

As another example of the alarm output, it is conceivable to display an alarm in a tree structure as shown in FIG. Then, when a plurality of alarms are output, for example, according to the alarm 154, the alarm 2 55, and the alarm 3 56 as shown in FIG. Is also good. Also, as shown in FIG. 12 (b), when a screen 51 which is automatically turned on is provided with a manual screen extinguishing touch panel 52 , the screen can be forcibly turned off even during alarm output in the case of a small alarm.

[0031]

According to the present invention, the information displayed on the display is made into a tree structure, and one of the information of the tree structure is obtained.
Since one of them can be displayed by a touch operation, even if there is a large amount of information, a necessary one can be easily selected from the information. In particular, the control input signal and the control output signal can be checked simply by selecting the screen, and the control state can be easily and immediately checked without connecting a measuring instrument.

At the time of outputting the alarm, the corresponding information is displayed along the tree structure, so that it is possible to easily determine what kind of alarm is being output and to respond quickly. In particular,
Even when examining an abnormal location, it is possible to display even an abnormal detail that could not be displayed due to the display space in the related art, and the abnormal location can be immediately detected.

In particular, the new set value and the old set value set for the local control panel are stored and the display
At least one set of the new set value and the old set value on the ray
It displayed together bets, set value writing rewriting the new setting value when the setting value is updated with the rewritten as an old setpoint, a new setting value input during the update as the newly set value
And recombinant means, in the course of writing the new setting value, abort operation aborts writing setting value in accordance with the old setpoint setting value rewriting the set value returning means for returning written as the current set value <br/> Since means are provided, updating can be performed easily, and if you want to stop writing the set value in the middle, stop writing the set value according to the operation of a predetermined key and write the old set value as the current set value. back, in a return to the values of the previous setting value
In this case, even if there is an error in changing the set value, it is possible to easily return to the control based on the current set value.

Further, since the light-off / light-on control means is provided, the display is automatically turned off when it is not needed, and is automatically turned on only when necessary, so that the life of the display can be extended.

[Brief description of the drawings]

Triple the installed display apparatus according to the invention, FIG
1 is a system diagram showing an example of the configuration of a modified D-AVR .

[Figure 2] shape alarm information on the screen is displayed in the tree structure
It is a figure showing a state .

FIG. 3 shows a state in which upper menu items are displayed on a screen.
It illustrates.

FIG. 4 is a diagram showing a switch when an alarm item is touched in FIG.
Is a diagram showing a state of e displayed screen.

When A system AVR is touched in FIG. 5 FIG. 4, cut
It is a diagram showing a state of recombinant displayed screen.

FIG. 6 is a diagram showing a state of a screen switched and displayed when a sub-controller (1/2) is touched in FIG.

FIG. 7 is a diagram showing a procedure for switching a display screen between an upper level and a lower level and between the same level.

FIG. 8: Basic information necessary for plant operation is always displayed on the screen.
FIG. 6 is a diagram illustrating an example of a time display method .

FIG. 9 is a diagram illustrating an example of a screen configuration for setting constants.

FIG. 10 shows means for setting constants according to the present invention .
It is a block diagram which shows a relationship.

FIG. 11 is a diagram showing one method of automatic light-off and automatic light-on.

FIG. 12 is a diagram showing another method of automatic light-off and automatic light-on.

FIG. 13 is a front view showing an example of an appearance of a local control panel.

[Explanation of symbols]

Reference Signs List 1 control controller 2 controller 3 display 4 generator 5 thyristor 6 transmission between controllers 7 transmission between controller and display 8, 9 menu screen 8I, 9I reset button 19 new setting value in display 20 old setting value in display 29 current setting value in controller Old setting value in 30 controllers

Continuation of the front page (72) Minoru Manjo 5-2-1, Omika-cho, Hitachi City, Ibaraki Prefecture Omika Plant, Hitachi, Ltd. (56) References JP-A-4-128787 (JP, A) JP-A Heisei 2-27451 (JP, A) JP-A-5-35193 (JP, A) JP-A-1-172133 (JP, U) JP-A-60-180064 (JP, U) (58) Fields investigated (Int. Cl. ^7, DB name) G08B 23/00 G05B 23/02

Claims (2)

(57) [Claims] A touch-operated display and said display;
Display means and tools for displaying information in a tree structure on the spray
One of the information displayed in the tree configuration is selected by touch operation.
Display switching means for switching display information when
In the display device of the local control panel, which is installed on the local control panel for controlling the equipment separated from the central control panel and used for monitoring the operation of the plant, the setting is made for the local control panel. The new set value and the old set value are stored and at least
A set of the new set values and the old set values are displayed together,
The set value the newly set values when updating rewrites as an old setpoint, a setting value rewriting means for rewriting the new setting value input during the update as a new set value, the set value in the middle of writing of said new set value Writing is medium
A display device for a local control panel , further comprising a set value restoring means for writing back the old set value as a current set value when stopped . 2. The local control panel according to claim 1,
On the display device, the manual screen off panel touches when there is no abnormal alarm output
When operated, or when the touch operation or alarm output is not generated a certain time, turns off the display, when the touch operation or alarm output is generated, the off-lighting control means for immediately turning on the display
A display device for a local control panel, which is provided .