JPH0764523A - Display controller - Google Patents

Abstract

PURPOSE:To improve Working efficiency by enabling required information to be displayed precisely at a wide area by providing an auxiliary display screen, and enabling every kind of data to be displayed in a state where it is enlarged. CONSTITUTION:State data MD stored in the memory of an external device 10 is read in a state data storage part 14 by, for example, a data communication part 20 on a display controller 26 side via a communication channel 12. Furthermore, read in state data MD is displayed on a main display screen 16 in a reference state by using, for example, the process instruction word W of an event data storage part 22 by a data display part 24 in a system control part 23. Simultaneously, the data can be displayed on the auxiliary display screen in a state where it is sufficiently enlarged than the one on the main display screen 16. Therefore, it is possible to display the required information precisely at the wide area such as a factory line and to improve the working efficiency simultaneously.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to various external devices such as a general-purpose computer and a programmable logic controller (hereinafter referred to as "PLC") at arbitrary coordinate positions on the display screen of various displays such as plasma, EL or liquid crystal. The present invention relates to a device for displaying an image composed of figures, graphs, numbers, characters, etc. based on data input from the device.

[0002]

2. Description of the Related Art The applicant of the present invention has been able to answer a question from the device side on a display screen, which changes in response to changes in state data on the PLC side, without requiring knowledge of the program. We have proposed a display control device that can be easily configured.

[0003]

However, since the character display in such a display control device is almost the same as the standard display in a normal personal computer, if the user does not get close to the display, the contents can be grasped properly. It is difficult to use as a display means for workers in the field.

As a result of consideration of such inconvenience by the present inventor, in addition to the display unique to the display control device,
It has been found that the above problems can be solved all at once by providing a large-sized display device such as an LED module and enlarging and displaying only the information necessary for the site on the display device.

The present invention has been made on the basis of such knowledge, and in addition to the main display screen provided in the display control device, an auxiliary display screen is provided, on which various data can be displayed in an enlarged state. By doing so, it is an object of the present invention to provide a display control device capable of accurately displaying necessary information in a wide place such as a factory line and improving work efficiency.

[0006]

A display control device 26 according to the present invention is connected to an external device 10 through a communication path 12 as shown in the basic configuration of FIG. The external device 1 is stored in the state data storage unit 14 through
While the state data MD on the 0 side is repeatedly read, the display operation corresponding to the read state data MD ′ is performed on the main display screen 16 in the standard state.

Further, one or a plurality of auxiliary display screens 18 are provided, and the display corresponding to a part of the state data MD 'is enlarged on the auxiliary display screen 18 more than on the main display screen 16 described above. It is characterized in that it is performed in the state.

The main display screen 16 and the auxiliary display screen 18 described above are arranged on the same case 32, and
The display contents on the auxiliary display screen 18 can be changed on the main display screen 16.

Further, the auxiliary display screen 18 described above is arranged together with the storage means on a case 76 different from the main display screen 16, and the cases 32 and 76 are connected via a communication path 84 and the communication path 84 is provided. It is preferable that the data stored in the storage means can be displayed on the auxiliary display screen 18 at an appropriate time.

[0010]

With the configuration described above, the state data MD stored in the memory of the external device 10 is read into the state data storage unit 14 via the communication path 12 by, for example, the data communication unit 20 on the display control device 26 side. Further, the read state data MD ′ is displayed in the standard state on the main display screen 16 by the data display unit 24 in the system control unit 23 using the processing instruction word W of the event data storage unit 22, for example. At the same time, information necessary for field work in the status data MD ′ is displayed on the auxiliary display screen 18 on the main display screen 16
It is displayed in a state in which it is sufficiently enlarged.

[0011]

As described above, the present invention is provided with the auxiliary display screen 18 in addition to the main display screen 16, and the auxiliary display screen 18 is configured to display a part of the state data MD 'in an enlarged state. Therefore, necessary information can be accurately displayed in a wide area such as a factory line, and work efficiency can be improved.

[0012]

EXAMPLE A display control device 26 according to the present invention will be described below.
As shown in FIG. 2, an example is shown in which the PLC 30 specially configured for the sequence control of the target system 28 is connected as an external device and the display and control corresponding to the state data MD handled therein are performed, but the present invention is not limited to this. Also, a personal computer or the like that causes various external devices having a data input / output function, whether general-purpose or dedicated, to perform display and control operations can be configured with substantially the same configuration.

The display control device 26 according to the present invention is a PL
Incorporated together with the C30 into the operation console of the target system 28, or independently provided, and used for creating, operating and displaying various data for the target system 28.
Various setting or control operations are performed by using a processing instruction word described in detail later.

PLC controlling the target system 28
In the circuit 30, a circuit is unitized for each required individual function, and by connecting each unit in parallel so that they can be appropriately added via a bus line as needed, it is possible to increase or decrease the function achieved as the PLC 30 as a whole. The configuration is substantially the same as the conventional one (for example, a product number “C” manufactured by OMRON Corporation).
2000H ").

[0015]

[Structure of Display Control Device] As shown in FIG. 3, a display control device 26 embodying the present invention includes a liquid crystal display device, a liquid crystal display device, and a C display device so as to close an opening 34 provided at a central position on the front of a body case 32.
While a display 36 selected from various display means capable of displaying data such as an RT or EL panel is arranged, a socket 4 to which a plug 40 of a keyboard 38 is detachably attached at a position below the display 36.
2 and a reader / writer socket 46 for inputting / outputting data to / from the IC card 44.

The display control circuit 4 is provided inside the main body case 32.
The display screen 16 in the display 36 is covered with the transparent touch panel 50 in a close contact state while the 8 is stored. An input position of the pressing instruction on the touch panel 50 is captured and analyzed via the touch panel controller 52, and the instruction data can be input by a manual operation during operation of the entire system with the keyboard 38 removed.

The basic structure of the display control circuit 48 is substantially the same as that of a general personal computer, and various memories 62 and 64 including a CPU 56, a ROM 58, a RAM 60, and a graphic controller 66 are connected via a bus line 54. The CPU 56 is connected and performs a predetermined arithmetic operation according to a system program stored in the ROM 58.

Further, the RAM 60 is provided with an area capable of storing the state data MD stored in the memory unit of the PLC 30, and a communication controller which operates by an algorithm specialized for the circuit configuration of the PLC 30 or a general-purpose communication program. By making it possible to exchange data with each other through the computer link unit on the PLC 30 side and the serial or parallel communication path 12 via 68,
The PLC 30 and the display control device 26 hold the state data MD and MD ′ having substantially the same content with each other with a minimum time delay.

On the other hand, data can be input from the keyboard 38 via the I / O controller 70, and R
Various calculation results that are appropriately stored in the AM 60 are video-imaged by the graphic controller 66 using image data stored in advance in the graphic memory 64 set in the flash memory inside the apparatus via the IC card 44. The video RAM 7 is expanded on the RAM 72.
Display 3 corresponding to the contents written in 2
6 on the main display screen 16.

To display each character on the main display screen 16, a character of a standard size in a normal personal computer is used. Therefore, when the operator approaches the front of the display 36, each character is displayed in such a size that the displayed content can be confirmed.

The present invention is characterized by further including an auxiliary display screen 18 by an auxiliary display device 74 illustrated in FIGS. 4 and 5, in addition to the main display screen 16 by the display 36 in the main body case 32 described above. And The auxiliary display device 74 is arranged in a place relatively easy to see from the periphery such as near the center ceiling of the factory line, and further, the size of the characters displayed on the auxiliary display screen 18 is
By setting the display size sufficiently larger than the display on the display 36, the display content can be accurately confirmed from a distance of several meters or more.

That is, the flat rectangular main body case 76
The four peripheral surfaces of the first to fourth display portions 78a, 78b, 78c, and 78d, which are large-sized display means such as LED modules having substantially the same structure, are provided, and are cylindrical from the center on the upper surface side. The mounting cylinder 80 is extended upward. The upper end of the mounting cylinder 80 can be fixed to the ceiling, and a commercial AC power supply line 82 and a communication path 84 are passed through the center of the mounting cylinder 80 to connect to a control circuit 85 provided inside the main body case 76.

The control circuit 85 includes a communication section 88 connected to the output controller 86 provided on the display control device 26 side via a communication path 84, and a storage section 90 for storing data taken in through the communication section 88. A control unit 92 that performs various control operations and a remote control receiving unit 94 that allows the control content of the control unit 92 to be changed manually.

The output controller 86 is the display controller 2
6, the data selected by a preset procedure is sent to the side of the auxiliary display device 74 as will be described later, and each data is stored with data for specifying the display section 78 to be displayed. It is sequentially stored in the unit 90. Storage unit 90
The display section 78 to be displayed is specified by the control section 92 for the data stored in the sub display screen 1 of each display section 78.
8 individually displayed.

On the other hand, one remote control receiving unit 94 is provided for each of the first to fourth display units 78, and the display contents on the auxiliary display screen 18 are displayed by the control signal sent from the remote control transmitting unit 96 provided separately. It can be changed.
For example, various operations such as replacing the data currently displayed on each display unit 78 with the data stored in the storage unit 90 or clearing the data being displayed or stored can be manually performed in the remote state. I can do it in. By displaying the number of display planes of the data stored in the storage unit 90 for each display unit 78, for example, as a number in the lower right corner of the auxiliary display screen 18, how much data is stored without being further displayed. It can be easily determined whether or not the part 90 remains.

[0026]

[Structure of processing instruction word] Display control device 2 for implementing the present invention
6, the base screen 98 such as the table and the graph frame shown in FIG. 6 whose display contents do not need to be changed, or the image data such as a figure that blinks or changes colors on the base screen 98 is required. One file number is designated for each display unit to be stored in the graphic memory 64 in advance.

On the other hand, among the status data MD indicated by the bit device corresponding to the on / off state of the relay set on the memory unit on the PLC 30 side or the word device corresponding to the temperature change state, etc., the necessary data is appropriately timed. Then, they are read in the RAM 60 on the display control device 26 side in association with each other.

Here, in the event data memory 62, the processing instruction words W exemplified in FIG. 7A are stored in advance in the number corresponding to the number of events to be executed on each base screen. The processing instruction word W is referred to for each execution event, the file number F of the base screen on which the display control operation is to be executed, the event name N that specifies the operation content to be executed while the base screen is displayed. Reference information r consisting of one or more data
So that the necessary information r such as the address of the data to be referred to or the display coordinates on the main display screen 16 on the display 36 can be set in advance in the reference information r. I am configuring.

Therefore, the above-mentioned processing instruction word W is read intermittently at every minute time, and the operation of the content specified by the event name of each processing instruction word W is taken out from the PLC 30 side and the state data MD 'and the processing instruction word. By executing the process while referring to the reference information r in W, the display data that changes in response to the change in the contents of the bit device or the word device on the PLC 30 side is synthesized, and the main display screen 16 or the main display screen 16 corresponding to the control state of the PLC 30 is synthesized. The display operation on the auxiliary display screen 18 is performed.

For example, the processing instruction word Wn shown in FIG.
File number F1 in the graphics memory 64 in advance.
RAM 60 on the base screen 98 stored as
The data stored at a predetermined address in the above is displayed as a numerical value, and the display mode can be changed. That is, the file number F1 of the base screen 98,
It is composed of an event name N1 starting from "n" for specifying a numerical display, a display coordinate position X1 of data, a read device address A1 of data to be displayed, and a reference address A2 of display attribute and its bit position information D1. It

On the other hand, the processing instruction word WS shown in FIG.
RAM is displayed on the auxiliary display screen 18 of the auxiliary display device 74 while the base screen 98 stored as the file number F1 is being displayed on the main display screen 16 of the display 36.
This is for displaying various data stored at a predetermined address in 60. That is, the file number F1 of the base screen 98, the event name N2 starting with "S" for specifying the data display on the auxiliary display screen 18, the screen number N3 for specifying the auxiliary display screen 18 to be displayed, and the data to be displayed. Read device address A3.

Therefore, as shown in FIG.
6, the processing instruction word W is set at the coordinate X1 on the main display screen 16
While setting n directly, the setting menu 99 is opened on the display 36 and the processing instruction word WS is set in the first display portion 78a in the table format. Then, when the content of the address A1 of the RAM 60 is rewritten, the display data on the main display screen 16 is automatically rewritten, and when the content of the address A3 is rewritten, the display data on the auxiliary display screen 18 of the first display portion 78a is automatically rewritten. Be done.

In addition to operating the contents of the auxiliary display screen 18 by using the remote controllers 94 and 96, an operation signal is transmitted in conjunction with the operation on the main display screen 16 on the display 36 of the display control device 26 side. It is also possible to send it to the side of the auxiliary display device 74 through the communication path 84 and to perform remote control. Further, it is possible to provide a plurality of auxiliary display devices 74 via the communication path 84 and to configure them in substantially the same manner. Further, instead of individually setting the display contents of the auxiliary display screen 18 using the processing instruction word W, a part of the main display screen 16 is left as it is or a part such as a character part is selectively extracted, May be displayed in an enlarged state.

FIG. 8 shows another embodiment of the present invention, in which the auxiliary display device 74 having the auxiliary display screen 18 for one surface is integrally formed with the main body case 32 on the display control device 26 side. That is, the main display screen 16 similar to the conventional one is provided on the front side of the display control device 26, and the auxiliary display device 74 having one display portion 78 is provided on one side edge on the upper surface side of the main body case 32. is doing. The auxiliary display device 74 is integrally formed with the main body case 32, or is formed separately, and is detachably attached to the main body case 32.
It can be configured to freely appear and disappear from 2.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a basic configuration of the present invention.

FIG. 2 is a block diagram of an electric circuit showing an example in which the present invention is used for controlling and displaying a PLC.

FIG. 3 is a partially cutaway perspective view showing a schematic configuration of an external shape.

FIG. 4 is a perspective view showing an external shape of an auxiliary display device.

FIG. 5 is a block diagram showing an electrical configuration of an auxiliary display device.

FIG. 6 is an explanatory diagram showing a setting state of a processing instruction word on the main display screen.

FIG. 7 is an explanatory diagram showing a structure of a processing instruction word particularly used in the present invention, in which (a) is a basic structure of the processing instruction word;
(B) shows a structure of a processing instruction word for display on the main display screen, and (c) shows a structure of a processing instruction word for display on the auxiliary display screen.

FIG. 8 is a perspective view showing another embodiment of the present invention.

[Explanation of reference symbols] 10 External device 12 Communication path between external devices 14 Status data storage unit 16 Main display screen 18 Auxiliary display screen 20 Data communication unit 22 Event data storage unit 24 Data display unit 26 Display control device 28 Target system 30 PLC 32 main body case 36 display 48 display control circuit 50 touch panel 60 RAM 62 event data memory 64 graphic memory 74 auxiliary display device 76 main body case 78 display unit 80 mounting tube 84 communication path between auxiliary display devices 86 output controller 88 communication unit 90 Storage unit 92 Control unit 94 Remote control receiving unit 96 Remote control transmitting unit

Claims (3)

[Claims] 1. The external device (10) is connected via a communication path (12), and via this communication path (12), a status data storage unit (14) stores a status data MD on the external device (10) side.
While reading repeatedly, the read status data M
A display control device for performing a display operation corresponding to D ′ on a main display screen (16) in a standard state, further comprising one or a plurality of auxiliary display screens (18), and the auxiliary display screen (18) In the above, the state data MD '
The display corresponding to a part of the main display screen (16) described above
A display control device characterized in that it is performed in a state in which it is sufficiently enlarged as compared with the above. 2. The main display screen (16) and the auxiliary display screen (18) described above are arranged on the same case (32), and the display content on the auxiliary display screen (18) is The control display device according to claim 1, wherein the setting can be changed on the display screen (16). 3. The above-mentioned auxiliary display screen (18) is arranged together with a storage means on a case (76) different from the case (32) on the main display screen (16) side, and both cases (3).
2) The parts (76) are connected to each other via the communication path (84), and the data stored in the storage means via the communication path (84) can be displayed on the auxiliary display screen (18) at an appropriate time. The control display device according to claim 1, wherein: