JP2002099923A - Display method and drawing device for reference mark - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily draw a more precise image without making screen display complicated in a drawing device 18 provided with a drawing means 10, capable of arbitrarily drawing an image on an image drawing screen 14 of a display 12 and an instruction means 22, capable of giving an optional instruction in the drawing operation. SOLUTION: A reference mark group 20, consisting of a plurality of reference marks 16 can be displayed, while being superimposed on the image drawing screen 14, and a distance between the reference marks 16 and 16 is set sufficiently wide, while the reference mark group 20 can be moved as a whole to an optional position on the image drawing screen 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawing apparatus using a computer, and more particularly to a drawing apparatus which can display a reference mark for assisting drawing.

[0002]

2. Description of the Related Art Conventionally, this type of reference mark is generally used as a reference at the time of drawing by displaying dots or thin lines at equal intervals. Further, in many cases, the interval between the reference marks can be automatically or manually set and changed in response to a change in the scale of the figure to be drawn.

[0003]

However, the conventional reference mark group is not always easy to use because if the interval is too large, it will not be useful as a reference for drawing, and if the interval is too small, its existence will be an obstacle. Did not. The present invention and the like, as a result of considering such inconveniences, as a result of enabling the arrangement position of the reference mark group as a whole to be changed, while maintaining a relatively large interval between the reference marks,
It was found that a reference mark excellent in usability as a reference at the time of drawing was obtained.

[0004] The present invention has been made based on such knowledge, and by arbitrarily changing the arrangement position, interval, or shape in a reference mark group,
It is an object of the present invention to provide a reference mark display method and a drawing apparatus to which the display method is applied, which makes it possible to further improve the usability without its presence becoming a hindrance.

[0005]

A drawing device 18 according to the present invention is displayed on a display 12 of a computer device having a drawing device 10, as schematically shown in FIG. 1 and FIG. A reference mark 16 for drawing assistance is superimposed on the drawing screen 14 so as to be able to be displayed. A plurality of the reference marks 16 are provided at predetermined intervals on the screen to form a reference mark group 20. In addition, the reference mark group 20 is integrated so that the display position on the drawing screen 14 can be arbitrarily changed.

The display position of the reference mark group 20 can be changed by setting the reference coordinates such as the center position in the reference mark group 20 by numerical values, or a screen using the pointing means 22 such as a mouse. It is changed by manual coordinate designation above.

The interval between the reference marks 16 constituting the reference mark group 20 can be arbitrarily set and changed in an unequal state, and the shape of each reference mark 16 can be set and changed individually. It is also possible.

[0008] The drawing means 10 of the computer device comprises:
This is for creating a display screen 30 illustrated in FIG. 3 for the programmable display device 24. The programmable display device 24 includes an event data storage unit 26 capable of storing a plurality of processing instruction words W including reference information r for specifying the contents of a unit operation to be processed illustrated in FIG. The processing instruction word W provided in the means 26 is decoded, and a display corresponding to the information referred to by each processing instruction word W is displayed on the display screen 3.
And a display control means 28 for performing the operation on the display device.

Then, the display screen 30 is displayed as a still image 32,
A processing instruction word W and a functional component composed of a combination of the processing instruction word W and the component graphic 34 are formed by arranging them on the base screen 36. The contents of the component graphic 34 displayed on the display screen 30 can be changed according to the change of the predetermined data in the inside. Here, it is preferable that the interval and the position of the reference mark 16 are set in correspondence with a graphic including a character or a part graphic to be created and arranged and a processing instruction word.

[0010]

According to the present invention, as described above, the reference mark group 20
Can be changed, it is possible to draw a fine figure while maintaining a relatively large distance between the reference marks 16.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, the present invention uses a PLC 40 provided as an external device and controls a sequence of a target system 42 such as a belt conveyor type automatic assembler by the PLC 40. The description will be made based on an example implemented in the display screen creation device 44 for the programmable display device 24 provided as a control panel for the PLC, but various drawing devices such as those for the purpose of drawing only are used. Of course, it is needless to say that the same can be applied in almost the same manner.

In the PLC 40, a circuit is formed for each required function such as a CPU unit and a memory unit, and the functions achieved as a whole PLC are achieved by connecting each unit so that the number can be increased or decreased as necessary. Has a configuration substantially similar to that of the related art that can be changed.

The storage location of the state data MD which is directly input / output to / from the target system 42 or used for control thereof is determined by a level meter or limit switch provided on the target system 42 to be controlled or displayed. Passive parts, active parts such as relays and motors, or data setting parts such as counters and printers are secured in the memory unit, and word devices for input / output data such as numerical values are word devices. However, for bit data such as on / off information, a bit device
Necessary data is set in the memory unit so that the storage location can be specified by designating a device name or address unique to the model such as "D100", which is predetermined by each PLC maker.

Therefore, by simply specifying and accessing an arbitrary device name in the memory unit from inside or outside of the PLC 40, the corresponding position of the target system 42 is controlled or obtained without knowing the actual address in the PLC. Information on the operating state can be taken out individually.

The programmable display device 24 includes a PLC 40
Together with the console of the target system 42 or the like, or it is independently provided and used as a control panel for the target system 42 in the field. A display control circuit is provided inside a casing (not shown). 46 is provided.

The basic configuration of the display control circuit 46 is substantially the same as that of a general-purpose personal computer, and the screen of a display 48 provided on the front side of the housing is made of a transparent touch panel 5.
An instruction by a pressing operation on the touch panel 50 is taken in through the touch panel controller 52 and the coordinates are analyzed, and the coordinates are analyzed at the time of testing, at the time of initial setting before starting operation of the entire system, or by a fingertip during driving. Enables various manual operations.

Furthermore, it is connected to a computer link unit on the PLC 40 side through a dedicated communication line 56 in a serial or parallel state via a communication controller 54 operating according to a dedicated protocol specialized for the PLC 40 to be connected.

Here, in the programmable display device 24, as shown in FIG. 3, a static figure 32 such as a nameplate which does not require a change in display contents, or a component such as a switch shape for changing shape, blinking or changing color. A display screen 30 configured to include one or more figures 34 on a base screen 36 is defined as a unit screen. Further, a display screen group including a plurality of unit screens is provided as one project in one programmable display device 24, and a different file number F is designated for each unit screen, so that the unit screen is displayed. By simply switching, a display screen 30 displaying necessary operation contents can be obtained.

Further, when one unit screen is selected, a processing instruction word W related to the selected unit screen as illustrated in FIG. 4 is written to the event data memory 60 as shown in FIG.
The processing instruction word W is read out intermittently every minute time, and the operation of the content specified by the event name N of each processing instruction word W is extracted from the PLC 40 side to the display device 24 side. By sequentially executing the data while referring to the data, a display operation in which the component graphic 34 and the display data change in response to a change in the content of the bit device or the word device of the PLC 40 is performed on the display screen 30.

That is, the basic structure of the processing instruction word W is substantially the same, and the file number F of the base screen 36 on which the display control operation is to be performed as shown in FIG. An event name N for specifying an operation to be executed;
Reference information r including one or a plurality of data referred to for each execution event is provided as one set.

For example, the processing instruction word WT shown in FIG.
The bit device which is set at a predetermined address position in the state data memory 58 can be inverted in conjunction with a pressing instruction operation on the touch panel 50. That is, the file number F1 of the unit screen, the touch panel 5
An event name N starting with "T", for example, specifying the operation 0
1. An input coordinate range X / Y in which an input operation from the touch panel 50 is valid, and an address A unique to each PLC 40 whose data is to be rewritten in conjunction with a pressing operation on the touch panel 50.

Further, the processing instruction word WL shown in FIG.
In conjunction with the operation of the touch panel 50, a predetermined figure can be displayed at a corresponding position on the base screen 36. That is, the file number F1 on the base screen 36, the event name N2 starting with, for example, “L” for specifying the display of the component graphic 34, the display coordinate range X ·
Y, file number F2 specifying the part graphic 34 to be called
And an address A unique to the PLC 40 to be referred to when displaying the component graphic 34.

Therefore, as shown in FIG.
The two processing instruction words WL1 and WT1 having the same address and the reference address A are set in the event data memory 60 in advance. If the bit device at address A of the state data memory 58 is "0", it is made to correspond to the OFF state of the switch in advance, and the PLC 40 performs the OFF operation on the actual switch contact to be controlled. . At the same time, the part graphic 34 corresponding to the switch off state
Is read from the graphic memory 62, and is expanded and displayed in the designated coordinate range XY on the corresponding base screen 36.

When the display location of the component figure 34 having a switch shape on the touch panel 50 is pressed, a processing instruction word WT for the touch panel is searched, and the touch panel 50 is searched.
It is determined whether or not there is a processing instruction word WT having a range including the corresponding coordinates as coordinate information from the instruction coordinates made via the.

For example, when one point in the coordinate range XY is pressed, the processing instruction word WT1 constructed as described above is pressed.
Therefore, as shown in FIG. 5B, the data value at the corresponding address A is inverted from “0” to “1”, and P
The corresponding switch contact is controlled to be turned on via the LC 40. At the same time, the processing instruction word WL1 determines that the reference address A has changed to "1", reads out the data FL2 of the part graphic 34a corresponding to the ON state of the switch from the graphic memory 62, and reads the corresponding coordinate range X.
By displaying on Y, the switch-shaped component graphic 34 displayed on the base screen 36 is also changed from the off state to the on state.

The present invention is directed to a control system having the above-described configuration, which has a feature in the configuration of the display screen creating device 44 used for the display control operation in the program type display device 24. In this embodiment, the display screen creation device 44 is configured by software stored in a general-purpose computer device connected to a LAN. Needless to say, the present invention can be implemented. In addition, it is also possible to use a display screen creation software that operates on the programmable display device 24 when it is off-line, and to create a necessary display screen 30.

A display screen creation device 44 embodying the present invention
Basically, a project file consisting of one or more unit screen files used in the above-mentioned program type display device 24 and related graphic files to be called and displayed from each unit screen is displayed on the processing instruction word W.
A general-purpose personal computer using an instruction device 22 such as a mouse as an instruction input unit on the display 12 is used, and is illustrated in FIG. 6 using a predetermined program. Various functions are implemented.

That is, a display section 64 for processing various display operations required on the screen of the display 12, a creation section 66 for drawing figures such as circles and straight lines, and an arrangement section for functional components such as switches and lamps 68, a setting unit 70 for the base screen 36 of the various processing instruction words W, and the still figure 3 arranged as an object on one base screen 36
2. A screen data synthesizing unit 72 for synthesizing unit data by organizing data included in functional components and processing instruction words, a screen data storage unit 74 for storing various types of generated data, and generated data And a data communication unit 76 that sends the data to the programmable display device 24.

The drawing figure creating unit 66 fills a line drawing mainly composed of straight lines and curves or the inside thereof with a predetermined color or pattern, substantially in the same manner as a conventional general drawing device.
An arbitrary drawing figure can be created on the base screen 36.

The functional component arranging section 68 previously stores a large number of data groups for general-purpose functional components such as switches and lamps using the component graphic 34 and the processing instruction word W. 34 is taken out and arranged at an arbitrary position on the base screen 36, and the size of the part graphic 34 can be arbitrarily set while checking the size on the creation screen.

The processing instruction word setting section 70 enables the processing instruction words W of the required functions to be individually set on the base screen 36 from among the processing instruction word groups prepared by the system, so that New functions not generalized as parts can be arbitrarily configured.

The screen data synthesizing section 72 combines the data of each element configured on the base screen 36 as described above into one unit screen which is exclusively used by the corresponding programmable display device 24. In addition to configuring the file, a plurality of unit screen files are combined into one to configure a project file.

As the screen data storage unit 74, an arbitrary storage device such as a hard disk device is used, and stores the data constituted by the screen data synthesizing unit 72 as described above and, if necessary, a data communication unit 76. Various kinds of data are sent to the programmable display device 24 via the.

The present invention has the above-mentioned configuration, and further comprises the steps of: when creating various figures in the drawing figure creating section 66, when arranging components in the functional component arranging section 68, or setting processing instruction words in the processing instruction setting section 70. The configuration of the reference mark 16, which is used at times and is mainly used for alignment, has the feature.

The reference marks 16 are based on dots or thin lines, and are arranged at regular intervals in the vertical and horizontal directions over the entire screen to form a reference mark group 20. The reference mark 16 is not limited to a dot or a thin line,
The shape and the color can be appropriately changed and implemented.

By arranging the reference mark group 20 on a plane 80 different from the drawing plane 78 configured to perform drawing, component arrangement, etc., as shown in FIG. Is switched as a whole between display and non-display, or its display color can be changed, and the arrangement position of the reference mark group 20 on the display screen 30 can be changed.

That is, for example, on the initial setting screen,
Coordinates serving as a base point when the reference mark group 20 is displayed can be designated by numerical values, and the reference marks 16 are displayed at predetermined intervals around the base point, whereby each reference mark 16 is displayed on the display screen 30. It is arranged at an arbitrary position above.

It is to be noted that, in addition to setting the coordinates of the reference base point as a numerical value as described above, by using a pointing device such as a mouse or a trackball, the reference mark group 20 is integrally dragged and dropped.
The change method is not limited, for example, the change position can be changed while visually observing the arrangement position.

The intervals between the reference marks 16 constituting the reference mark group 20 may be equal intervals or may be unequal intervals such as a logarithmic memory. In addition, only one direction in the vertical or horizontal direction or only a part of the entire screen can be set at an irregular interval or an interval different from the others.

Further, the reference mark group 20 is displayed on the display screen 30.
In addition to providing over the entire surface, only a part of them can be provided, and a plurality of them can be provided while their positions can be changed. On the other hand, it is also possible to separately provide the reference mark groups 20 with different intervals or shapes on the plurality of planes 80 and switch between them to display them alternately or in a superimposed manner.

Furthermore, in addition to making the shape of each reference mark 16 all the same, only the reference mark 16a at the position specified by the pointer 86 in the vertical or horizontal direction, or at predetermined intervals, or It is also possible to change to a triangle or the like.

Further, in addition to the reference mark groups 20a and 20b for drawing assistance set at relatively large predetermined intervals necessary for the figure 82 such as a part figure to be created, the reference mark group 2
A plane 84 having a fixed position provided with a reference mark group 21 for accurately moving 0 in dot units or for notifying a section corresponding to the resolution on the touch panel 50 is provided, and the fixed plane 84 is displayed as necessary. The reference mark group 20 for drawing assistance is set on the basis of the fixed reference mark group 21 on the plane 84.
a and 20b can be shifted at a predetermined interval such as a dot unit.

That is, instead of setting the interval between the reference marks 16 to be small when drawing the precise figure 82, the reference mark groups 20a and 20b are moved in accordance with the precision at the time of drawing. It is. At this time, the reference mark group 20 can be moved by numerical values in the vertical and horizontal directions, or can be moved by a mouse that exactly matches the reference mark group 21 on the fixed reference plane 84.

[Brief description of the drawings]

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

FIG. 2 is a block diagram illustrating an electrical configuration of a PLC and a programmable display device.

FIG. 3 is an explanatory diagram showing an example of a display screen created.

4A and 4B are explanatory diagrams showing a configuration of a processing instruction word used in the program type display device, wherein FIG. 4A is a basic configuration of the processing instruction word, and FIG. 4B is a process for data input using a touch panel. (C) shows the configuration of a processing directive for graphic display.

FIG. 5 is an explanatory diagram showing an example of a control operation using a processing instruction word.

FIG. 6 is an explanatory diagram illustrating a configuration related to functions of a display screen creation device.

FIG. 7 is an explanatory diagram illustrating an example of a reference mark.

DESCRIPTION OF SYMBOLS 10 Plotting means 12 Display of plotter 14 Display screen 16 Reference mark 18 Plotter 20 Reference mark group 21 Fixed reference mark group 22 Pointing device 24 Programmable display device 26 Event data storage means 28 Display control Means 30 Display screen 32 Still graphic 34 Functional component 36 Base screen 38 External device 40 PLC 42 Target system 44 Display screen creation device 46 Display control circuit 48 Display 50 Touch panel 52 Touch panel controller 54 Communication controller 56 Communication line 58 State data memory 60 Event Data memory 62 Graphic memory 64 Display unit 66 Drawing figure creation unit 68 Functional component placement unit 70 Processing instruction word setting unit 72 Screen data synthesis unit 74 Screen data storage unit 76 Data Communication unit 78 Drawing plane 80 Reference mark group display plane 82 Graphic 84 Fixed plane

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5B046 FA02 FA04 HA07 5B050 BA06 BA18 CA07 EA12 EA13 FA02 FA09 FA15 5E501 AA02 AC20 BA05 CA02 CB05 EB05 EB06 FA02 FB22

Claims (8)

[Claims] 1. A reference mark for drawing assistance, which is displayed by a drawing means (10) so as to be superimposed on a drawing screen (14) displayed on a display (12) of a computer device, wherein the reference mark is A plurality of marks are provided on the screen at predetermined intervals to form a reference mark group (20), and the reference mark group (20) is integrated with the drawing screen (1).
4) A method of displaying a fiducial mark, characterized in that the display position above can be arbitrarily changed. 2. The display method according to claim 1, wherein the display position of the reference mark group (20) is changed by setting a reference coordinate in the reference mark group (20) by a numerical value. 3. The display method according to claim 1, wherein a display position of the reference mark group (20) is changed by manual coordinate designation on a screen using an instruction means (22). 4. The display method according to claim 1, wherein the interval between the reference marks constituting the reference mark group (20) can be arbitrarily set and changed in an unequal state. 5. The display method according to claim 1, wherein the shape of each of the reference marks (16) constituting the reference mark group (20) can be individually set and changed. 6. The drawing means (10) is for creating a display screen (30) for a programmable display device (24), wherein the programmable display device (24) is to process. An event data storage means (26) capable of storing a plurality of processing instruction words including reference information for specifying the content of the unit operation; and a processing instruction word provided in the event data storage means (26).
Display control means (28) for performing a display corresponding to the information referred to by each processing instruction word on the display screen (30), wherein the display screen (30) includes a still figure (32), a processing instruction word, Is formed by arranging a functional component composed of a combination of the processing instruction word and the component graphic (34) on the base screen (36), wherein the processing instruction word is included in the status data of the external device (38). A display screen (30) corresponding to a change in predetermined data;
The contents displayed above can be changed, and the intervals and positions of the fiducial marks (16) are set in correspondence with figures to be created and arranged and processing instruction words. 5. The display method according to any one of 5. 7. A computer-readable recording medium storing a reference mark display method according to claim 1 as an instruction to be executed using a computer device. 8. A drawing device which superimposes on a drawing screen (14) displayed on a display (12) of a computer device having a drawing means (10) and can display a drawing reference mark (16). A plurality of fiducial marks are provided on the screen at a predetermined interval set in advance to form a fiducial mark group (20), and the fiducial mark group (20) is integrated with the drawing screen (1).
4) A drawing device wherein the display position on the upper side can be arbitrarily changed.