JPH01260508A - Display device for controller - Google Patents

Abstract

PURPOSE:To rapidly execute a correspondence processing at the time of generating abnormality by displaying the content of the abnormality instead of a quantity of measurement when the abnormality is generated in a linear display unit to display the quantity of measurement. CONSTITUTION:On an operation panel 11, bar graph display units 12a-12c as the linear display units which display a set value SV for the operation of a plant, a process value PV inputted from the plant, and an operation output value MV found from the process value and the set value and sent to the plant are arranged. Here, when a certain kind of abnormality is generated in the plant or a controller main body, an abnormality generation alarm lamp 13 is lit and also, the values SV, PV, and MV in displaying on the bar graph display units 12a-12c disappear, and the contents of the abnormality possible to specify a part where the abnormality is generated are displayed on the bar graph display units 12b and 12c instead of them. In such a way, an operator can perform the correspondence processing rapidly at the time of generating the abnormality.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a controller that controls a plant, and particularly to a display device for a controller that efficiently displays the occurrence of an abnormality in a plant and the details of the abnormality. Regarding.

(Prior Art) In a large-scale plant, many regulators are required to control the operating state of the plant. These controllers are installed side by side in the instrumentation panel of the control console in the operation control room.

FIG. 8 is a schematic diagram showing the state, and the instrumentation panel 1
A controller 3 is inserted and fixed into each of a plurality of slotted windows 2 that are bored in close proximity to each other. Only the operation panel 4 of each controller 3 is exposed on the surface of the instrumentation panel 1. As shown, the operation panel 4 displays the process value PV input from the plant, the set value SV1 for the plant operation number y, the manipulated output value MV determined from the process value and the set value and sent to the plant. Displaying half graph display 5a, 5)]
A '5c' arrangement. Additionally, an abnormality warning lamp 6 is provided to indicate that some abnormality has occurred in the blunt, and a plurality of keys 7 are also provided for setting the set value SV and manually inputting various control commands. It is set up.

In addition, there is a keyboard 9 on the side 8 of the controller 3, which is usually hidden on the back side of the old panel 1, and a keyboard 9 for checking the internal status. An internal status indicator]0 is provided to display the internal status of the location. This key 1-'
9 and the internal status display 10 are arranged on the side surface 8 of the controller 3, in addition to the reason that they cannot be mounted on the operation panel 4 due to the small area of the operation panel 4 on the front. keyboard 9.
This is because if the operator is placed on the operation panel 4, unnecessary information will be displayed, which will make the operator feel very uncomfortable.

In such adjustment H, if any abnormality occurs in the blunt, the occurrence and content of the abnormality will be determined by this adjustment i.
” is detected. Then, the abnormality occurrence warning lamp 6 on the operation panel 4 lights up.

When the operator confirms that the abnormality warning lamp 6 is lit, as shown in FIG. Then, the internal status of the corresponding part is sequentially displayed on the internal status display 0 to identify the part where the abnormality has occurred and confirm the details of the abnormality.

However, if the controller 3 or the front operation panel 4 is stored in the installed panel 1, the location of the abnormality cannot be immediately determined, making it difficult to respond quickly to the abnormality. Met.

Furthermore, if the abnormality warning lamps 6 are lit at the same time in the adjacent control cylinders 3, even if two controllers 3 are pulled out from the sealing panel 1 at the same time, keys on both keyboards 9 may be operated at the same time, or both internal status indicator] It was difficult to confirm the peaks and troughs of the 0 display. Therefore, if an abnormality occurs in many parts at the same time, there is a problem in that it is not possible to quickly respond to the problem.

(Problem to be solved by the invention) In this way, in the conventional adjustment body 3, when an abnormality occurs, only the abnormality occurrence warning lamp 6 on the operation panel 4 lights up, and it is possible to identify the location where the abnormality has occurred. In order to check the details of the abnormality, it is necessary to pull out the adjustment barrel 3 from the old wearing panel and check using the key fob 9 and internal status display 10 on the side 8 of Drawer-C1, so it is not possible to quickly respond when an abnormality occurs. There was a problem.

The present invention allows the linear display that displays 5-1 measurement to display the content of the abnormality instead of the measured amount when an abnormality occurs, so that the abnormality can be detected as soon as the abnormality occurs without the need to pull out the controller from the instrumentation panel. It is an object of the present invention to provide a display device for a controller that allows the contents to be checked and quick response processing to be executed when an abnormality occurs.

[Aspects of the Invention] (Means for Solving the Problems) In order to solve the above problems, the display device of the controller of the present invention has a linear data display area for inputting and outputting it to the blunt. In addition to displaying the measured quantity on the data display area of the linear display, display the abnormality occurrence and the details of the abnormality when detecting an abnormality in the blunt. An abnormality content scale that indicates the abnormality contents drawn with the i mark, an abnormality warning lamp that responds to the detection of an abnormality and displays the occurrence of the abnormality, and a linear indicator that responds to the detection of an abnormality. If you want to block the ffi display,
The apparatus is equipped with an abnormality content display means for displaying the abnormality content on the linear display after the old survey display has been cut off by the old 411 quantity display cutoff means.

(Function) With the display device with adjustment π1 configured as described above, the measurement quantity 1 indicating the value of the old survey that is output to the blunt is displayed along the linear data display area on the linear display. and an abnormal content scale indicating the abnormal content are displayed twice. It is also equipped with an abnormality warning lamp. When the plant is operating normally, the abnormality occurrence warning lamp is off, and the total amount of all input to and output from the plant is displayed in the linear data display area of the linear display. Thus, the operator can confirm the value of the total amount using the measured amount scale.

Further, if any abnormality occurs in the plant, the abnormality occurrence warning lamp lights up, the measured quantity displayed on the linear display disappears, and the details of the abnormality are displayed instead. Therefore, the operator can confirm the occurrence of the abnormality using the abnormality occurrence warning lamp, and can confirm the details of the abnormality using the abnormality content scale.

(Example) An example of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an operation panel formed on the front surface of a controller incorporating a display device according to an embodiment.

This operation panel 11 is exposed on the surface of the instrumentation panel 1 when this controller is housed in the instrumentation panel 1 shown in FIG.

The operation panel 11 displays set values S for plant operation.
V1 A bar graph display 12a as a linear display that displays the process value PV input from the plant, and the manipulated output values M and V determined from the process value and set value and sent to the plant.

12b and 12c are arranged. In this embodiment, the process value and the operation output value are the measured quantities.

Additionally, an abnormality warning lamp 13 is provided to indicate that some abnormality has occurred in the plant, and a plurality of keys 14 are also provided for setting the set value S and inputting various control commands. It is arranged.

Each of the bar graph indicators 12a, 12b.

As is well known, the data display area 12c has a data display area 15 formed by linearly arranging a large number of LEs (light emitting diodes).
By displaying D, the human power data value is displayed. And each bar graph display 2a, ], 2b
, 1.2c, on one side of the data display area are set value scales as measured quantity scales that indicate data values in % from 0 to 100] 6a, process value scales] 6b, operation output value scales], 6c. is depicted.

Further, on the other side of the data display area 6 of the bar graph display devices 12b and 12c, an abnormality content scale 7 indicating an abnormal location and content of the abnormality is drawn.

For example, [PV1
] indicates that the abnormality occurred at the first process value obtained from the plant, [LO] indicates that the process value has fallen below the lower limit value, and [Hi] indicates that the process value has decreased to the lower limit value. Indicates that the value has increased above the upper limit. Also,
On the bar graph display 12b, [LOOP1] indicates the abnormality occurrence location or part 1, [MV] indicates the operation output abnormality, [ADC] indicates the A/D converter abnormality, and [BUZ] indicates the buzzer abnormality. , [N C] indicates a transmission error.

In Fig. 1, the first process value exceeds the upper limit value, the third process value falls below the lower limit value, and the operation output to part 1 is abnormal, and the same part 1 has an abnormal buzzer. This also indicates that an A/D conversion abnormality has occurred in section 3.

FIG. 2 is a block diagram showing the controller, and when a set value SV is inputted by key operation of the key 14 to the control unit 18, which is composed of, for example, a microcomputer, and a process value PV is inputted from one plant. , calculates a manipulated output value MV from the set value S■ and the process value PV, and sends it to the plant 19. When the plant 19 is in normal operation, each bar graph display] 2a.

: 1. Display the set value S■, prorus value Pv, and manipulated output value MV on 2b and 12c, respectively.

Further, if any abnormality occurs in the plant 19 or the controller main body, the control unit 8 detects the occurrence of the abnormality, the location of the abnormality, and the details of the abnormality.

When the control section 18 detects the occurrence of an abnormality, it turns on the abnormality occurrence warning lamp 136 and simultaneously displays the set value SV, process value PV, and manipulated output value displayed on each bar graph display 12a, 12b + 12c. Block MV. And the half graph display 12b:1. ．． 2
The LED at the position corresponding to the corresponding failure in each of the above-mentioned failure content scales 17 drawn along the data display area 15 of c.
lights up. In other words, the details of the failure are displayed.

If the display device of the controller is configured in this way, the bar graph display [2b, 12c linear data display area]5 will be displayed as a total of 1jllll input from one plant. Process value PV and plant 19
Process value scale 16b indicating the value of the operation output value MV as a measurement quantity to be sent to the operation 1" force value scale 1.6
c and an abnormality content scale 17 indicating the content of the abnormality are displayed twice. Additionally, an abnormality warning lamp 13 is provided.

When one plant is operating normally, the abnormality occurrence warning lamp 13 is off, and each of the half graph indicators 12a,
12b and 12c are set values SV.

A blunt value PV and a manipulated output value MV are displayed. However, the operation [meter is S■].

-]]- PV and MV can be confirmed using the respective scales 16a, 16b, ], and 6c.

Furthermore, if any abnormality occurs in one plant or the controller body, the abnormality occurrence warning lamp 13 lights up, and each bar graph display [2a].

The respective SV, PV, and MV displayed on 12b and 12c disappear, and instead, the content of the abnormality that can also specify the location where the abnormality has occurred is displayed on each pergraph display 1.2b, ], 2c.

Therefore, as soon as an abnormality occurs, the operator can confirm the occurrence of the abnormality using the abnormality warning lamp 3.
The contents of the abnormality can be confirmed using the abnormality contents scale 17. Therefore, unlike the conventional controller shown in Fig. 8, there is no need to pull the controller from the instrumentation panel and check the details of the abnormality, so that when an abnormality occurs, countermeasures can be taken quickly. .

Moreover, bar graph display devices 12a and 12b.

12c is the SV for each plant when one plant is in normal condition.

The area of the operation panel on the front of the controller is the same as that of the conventional controller 3 in Fig. 8, since it serves both as a display for displaying PV and MV as well as a display for displaying the details of the abnormality when an abnormality occurs. It is possible to make the area approximately equal to the area of the panel 4.

FIG. 3 is a diagram showing an operation panel 1 of a controller incorporating a display device according to another embodiment of the present invention.

In this embodiment, along the data display area 15 of the bar graph display which displays the set value SV]-2a, the abnormality occurrence location (LOOPI, 2, 3.4) at the time of abnormality occurrence is displayed.
A scale 1.7a is drawn, and the abnormality contents (MV, Hl, LO, AD
C.

MC,...) scale 17b is drawn.

When an abnormality occurs, the location where the abnormality occurs is checked on the scale 17a, and the details of the abnormality are checked on the scale 17b. In this way, the area where the abnormality occurs and the details of the abnormality are displayed separately on the half graph display 12a.

], 2b, it is possible to obtain almost the same effect as in the above-mentioned embodiment.

FIGS. 4 and 5 are diagrams showing the main parts of a bar graph display 12b in a display device according to still another embodiment of the present invention. In the embodiment shown in FIG. 4, the content of the abnormality is displayed blinking, and in the embodiment shown in FIG. 5, only the part corresponding to the content of the abnormality is turned off, and the other parts are lit. By highlighting the details of the abnormality in this way, the operator can more easily discover the abnormality at night or the like.

FIG. 6 is a diagram showing the scale plate 20 of the data area 15 of the bar graph display device in the display device of still another embodiment], 2b pulled out from the upper end of the operation panel 11. In this embodiment, process value scale 16b
On the opposite side, there is drawn an abnormality content scale 2 which clearly displays the abnormality content for each control system, such as [boiler abnormality], [valve abnormality], etc.

Figure 7 shows a half-graph display as a linear display], 2a
, 12b are replaced by horizontal indicator hands 23a, 2, respectively.
Meter indicator 22a with 3b.

22b is used.

Even with such a display device, if the plant is normal, each indicator needle 23a, 23b is set value scale 16a and process value scale 16a.

16b indicates the set value S■ and process value Pv, whose values can be confirmed, and in the event of an abnormality, each scale 17
The location of the abnormality and the details of the abnormality that can be confirmed in a and 17b are shown. Therefore, it is possible to obtain substantially the same effect as in the embodiment described above.

[Effects of the Invention] As explained above, in the display device of the controller of the present invention, when an abnormality occurs, the content of the abnormality is displayed instead of the total amount of 41 on the linear display that displays the measured quantity. Therefore, without pulling out the controller from the instrumentation panel, the details of the abnormality can be confirmed at the same time as the abnormality occurs, and prompt response processing can be executed when the abnormality occurs.

[Brief explanation of the drawing]

FIG. 1 is a layout diagram of an operation panel showing a display device of a controller according to an embodiment of the present invention, FIG. 2 is a block diagram showing a controller, and FIGS. A layout diagram of the operation panel of the display device of the controller according to the embodiment, FIGS. 4 and 5 are diagrams showing a bar graph display device in yet another embodiment, and FIG. 6 is a scale plate in still another embodiment. FIG. 8 is a perspective view of a conventional controller. 1... Instrumentation panel, 11... Operation panel, 12
a, 12 b, 12 c = Bar graph display, 13... Abnormality warning lamp, 14... Key, 15... Data display area, 16a... Set value scale, 1.6 b.・・Process value scale, 16c・・
・Manipulation output value scale, 17・・Abnormality content scale, 18・
...Control unit, 19...Plant. Applicant's agent Patent attorney Takehiko Suzue 17 12b 17 12b Figure 3 Figure 4 Figure 5 12b Figure 6 Figure 7

Claims (1)

[Claims] In a controller that displays measured quantities input and output to a plant on a linear display having a linear data display area, and also detects an abnormality in the plant and displays the occurrence of the abnormality and the details of the abnormality, Along the data display area of the linear display, an abnormality content scale indicating the content of the abnormality is drawn together with a measurement quantity scale indicating the value of the measured quantity, and an abnormality displaying the occurrence of the abnormality in response to the abnormality detection. an occurrence warning lamp; a measured quantity display cutoff means for cutting off the measured quantity display on the linear indicator in response to the abnormality detection; A display device for a controller, comprising: abnormality content display means for displaying the abnormality content on a display.