JP5511322B2 - Ladder diagram display method - Google Patents

Description

  In the ladder diagram display method for displaying a ladder program in the form of a ladder diagram on the screen, it is clear whether the input unit in the input unit display area is all displayed or only a part is displayed on the screen. It relates to the display method.

  A conventional method for displaying a ladder diagram on the editing screen will be described with reference to FIG. The edit screen 1 includes a row number display unit 2 in the leftmost vertical direction on the screen, a column number display unit 3 in the upper-left horizontal direction on the screen, a vertical scroll operation unit 4 in the rightmost vertical direction on the screen, A horizontal scroll operation unit 5 in the horizontal direction at the lower end is displayed. This editing screen 1 is composed of an input area display area 6 and an output area display area 7 in the horizontal direction over the entire area. A boundary line 8 is displayed in the vertical direction between the input portion display area 6 and the output portion display area 7 (see Patent Document 1).

  In the input portion display area 6, a bus line M1 is displayed in the vertical direction on the left end side, and row lines L1, L2,... Are displayed in a horizontal direction from the bus line M1, and the row lines L1, L2,. In addition to the input part numbers C1, C2,..., The input parts such as push buttons, switches, sensors, etc. are symbolized in the form of contacts. These row lines L1, L2,... Constitute each ladder diagram row when the ladder program is displayed in a ladder diagram format on the screen.

  The configuration of the input conditions by various circuits such as AND, OR, NOT, etc. by the combination of the contacts constituting these various input units is not described in the present embodiment, and all are displayed in the same contact format. In the input portion display area 6, the contact numbers are indicated by the symbols C1, C2,... On each row line L1, L2,... The row lines L1, L2,... Are long and are not displayed in the input part display area 6. Therefore, the row lines L1, L2,... Can be displayed on the screen by operating the horizontal scroll operation unit 5 and horizontally scrolling the input unit display area 6.

  In the output portion display area 7, row lines L21, L21a, L22,... Are displayed individually corresponding to the row lines L1, L1a, L2,. An output unit 9 such as a relay, a lamp, a motor, or an actuator is displayed in a box or other format. Each row line on the output portion display area 7 corresponds to each row line on the input portion display area 6 and constitutes the same ladder diagram row.

JP 2009-129158 A

  In the above ladder diagram editing screen 1, in the input part display area 6, when the number of contacts increases, the row line in the area 6 becomes longer and the entire row line in the area 6 is displayed on the editing screen 1. Can not do. Therefore, when the line in the area 6 is long, even if the user can horizontally scroll the entire input unit display area 6 by operating the horizontal scroll operation unit 5 (not shown), for example, the ladder diagram rows 001 and 002 shown in the drawing. A part of the input part display area 6 is hidden in the output part display area 7 on the right side of the boundary line 8, so the situation of the entire input part display area 6 cannot be immediately seen, and the ladder diagram It is possible to overlook the situation in either row of each row. In order to check the situation, a troublesome operation such as horizontal scrolling of the input unit display area 6 to the right in the horizontal direction is required each time. Further, if the output device 9 having a large display size exists in one line of each ladder diagram in the output unit display area 7, the boundary line 8 is drawn uniformly in the vertical direction with reference to the output device 9. Regardless of the situation of the other lines of the ladder diagram, the entire display area of the input unit display area 6 is reduced, and depending on the line of the ladder diagram, an unnecessarily large waste space is created on the output unit display area 7 side. .

  The problem to be solved in the present invention is that the number of input unit constituting devices increases in each line of the ladder diagram in the input unit display area 6, and the size of the output unit constituting devices in the output unit display area 7 is large. Even if the right-side row end side is hidden in the output portion display area 7, it is immediately possible to visually determine whether or not the input-portion configuration device of the output portion display area 7 exists on the hidden right-side row end side. In the case of a line with a small number of input unit configuration devices, it is possible to immediately determine the presence or absence of the entire line. 7 is not divided into areas so that various operations such as correction and editing of the ladder program can be performed more easily.

  The ladder diagram display method according to the present invention divides a ladder diagram into an input portion display area for displaying an input portion in the horizontal direction on the screen and an output portion display area for displaying an output portion, and displays each line of the ladder diagram. When the entire input unit is displayed in the input unit display area in the ladder diagram display method that allows vertical scrolling operation and horizontal scrolling operation of only the input unit display area with the output unit display area fixed. Displays both areas without dividing the area, and when there is a line where at least part of the input part is hidden in the input part display area from the screen, the input part display area is displayed on the editing screen. A display omission line indicating that the display of a part of the input unit in the row is omitted is displayed.

  Preferably, the display omission line is displayed between an input portion display area and an output portion display area corresponding to the row.

  Preferably, the position of the display omission line can be set for each row according to the output portion size of the output portion display area.

  Preferably, when the display omission line in the line is displayed on the screen, the display omission line disappears when the entire input portion of the line is displayed by scrolling the screen horizontally. It is.

  Preferably, in the case where the entire input unit in the row is displayed on the screen, when the part of the input unit is hidden in the output unit display area by horizontal scrolling, the display omission line is displayed. .

  Preferably, display and non-display of the display skip line can be controlled by a user operation.

  In the present invention, when the input part display area is displayed without displaying the display omission line on the screen, the user can immediately visually determine that the entire input part is displayed in the input part display area. If there is a line with a display omission line on the screen, the user can immediately determine that there is an input part that is not displayed in part of the line. Various operations such as correction and editing can be performed more easily.

  According to the present invention, it is possible to easily execute editing of a ladder diagram format program on the monitor screen.

FIG. 1 is a diagram showing an editing screen in which a display omission line is not displayed between an input unit and an output unit in a ladder diagram display method according to an embodiment of the present invention. FIG. 2 is a diagram showing an editing screen on which the display omission line is displayed. FIG. 3 is a diagram showing an editing screen on which a plurality of the display omission lines are displayed. 4A shows a part of the editing screen on which the display omission line is displayed, and FIG. 4B shows an editing screen in which the display omission line is removed from the state of FIG. 4A. FIG. FIG. 5 is a diagram showing an editing screen in a conventional ladder diagram display method.

  Hereinafter, a ladder diagram display method according to an embodiment of the present invention will be described. The method of the embodiment according to this description is for embodying the technical idea of the present invention, and does not limit the present invention. The method according to the present embodiment is executed by a ladder diagram editing apparatus including a personal computer. Although the present embodiment will be described with reference to FIGS. 1 to 4, the editing screens shown in these drawings are editing screens in this ladder diagram editing apparatus. Description of the ladder diagram editing program in such a ladder diagram editing apparatus is omitted. The ladder diagram editing apparatus is configured by a general-purpose computer and includes a CPU, a memory, a display unit, and an operation unit. The CPU performs control and arithmetic processing of each unit when operating various application programs including a ladder program editing program on an OS (operating system) installed in the ladder diagram editing apparatus. The memory includes a memory such as a RAM and a ROM, and can provide a work area for data storage, temporary data storage, and arithmetic processing of the CPU. The display unit includes a flat panel editing screen such as a CRT, LCD, liquid crystal panel, or EL panel. The operation unit is a device for performing input operations such as a keyboard and a mouse. The editing screens shown in FIGS. 1 to 4 are displayed by a ladder program in a ladder diagram format created by the ladder program editing program.

  The ladder diagram display method of the present embodiment using such a ladder diagram editing device is divided into an input unit display area for displaying the input unit in the horizontal direction on the screen and an output unit display area for displaying the output unit. The present invention relates to a ladder diagram display method capable of displaying each line of the ladder diagram and performing a vertical scroll operation on the entire screen and a horizontal scroll operation only on the input portion display area in a state where the output portion display area is fixedly displayed.

  In the ladder diagram display according to the present embodiment, (1) when the entire input unit is displayed in the input unit display area, the normal display mode for displaying both the areas without dividing them into regions (2) ) When there is a line where at least part of the input part is hidden in the input part display area from the screen, the input part display area is between the input part display area and the output part display area corresponding to the line. And an abbreviated display mode for displaying a display abbreviation line indicating that the display of a part of the input section in the line is omitted.

  Hereinafter, a ladder diagram display method according to the present embodiment will be described with reference to FIGS.

(Normal display mode)
First, the normal display mode will be described with reference to FIG. In the editing screen 1 for displaying a ladder diagram in the normal display mode, as a user interface screen, a line number display section 2 in the vertical direction at the left end on the screen, a column number display section 3 in the horizontal direction at the top end on the screen, A vertical scroll operation unit 4 in the upper right end vertical direction and a horizontal scroll operation unit 5 in the lower end horizontal direction on the screen are displayed.

  The edit screen 1 has an input part display area 6 and an output part display area 7. In the input portion display area 6, a bus line M1 is displayed in the vertical direction on the left end side, and row lines L1, L1a, L2,... Are displayed from the bus line M1 in the horizontal direction at a parallel interval in the row direction. In addition to C1, C2,..., Input unit constituting devices such as push buttons, switches, sensors, and the like are displayed as symbols in contact shapes. Each of these line lines constitutes each line of the ladder diagram when the ladder program is displayed in the form of a ladder diagram on the screen. In the output portion display area 7, row lines L21, L2,... Corresponding to the row lines L1, L2,. L22,... Are displayed, and this row line L21. On L21a, L22,..., Output unit constituting devices 9 such as relays, lamps, motors, and actuators are displayed in boxes and other formats. The row lines L1, L1a, L2,... In the input portion display area 6 and the row lines L21. L21a, L22,... Correspond to each other, and in this normal display mode, there is no boundary line between the input portion display area 6 and the output portion display area 7 as shown in FIG.

  Since the entire input unit is displayed in the input unit display area 6 on the editing screen 1 in the normal display mode, the user does not display a display omission line in the ladder diagram displayed on the editing screen 1. Thus, the entire input portion display area 6 is displayed, and it can be immediately determined visually that both the input portion display area 6 and the output portion display area 7 are displayed without being divided into areas. Therefore, ladder diagram editing can be easily performed.

(Omitted display mode)
The edit screen 1 in the abbreviated display mode will be described with reference to FIG. 2. A double wavy line display omission line 10 is displayed in the vertical direction on the edit screen 1 in the ladder diagram row number (001). Further, the display omission line 10 is not displayed in the other line numbers (002), (003). In the ladder diagram row number (001) on the edit screen 1, the user divides the input portion display area 6 and the output portion display area 7 by the display omission line 10, and therefore the input portion display area 6 Indicates that at least a part of the input part is hidden, and the display omission line 10 is not displayed in the other line numbers (002) (003). It can be seen that the entire image is displayed without being omitted. As a result, the user can easily perform ladder editing.

  Although the display form of the display omission line 10 is a row-direction wavy double line wave form in the embodiment, it is not limited thereto, and any display form can be included.

  When the ladder diagram on the editing screen 1 is displayed in color, the display color of the display omission line 10 may be selected and displayed in various ways.

  Further, the display position of the display omission line 10 is in the row direction at the intermediate position between the input portion display area 6 and the output portion display area 7, but is not limited to the intermediate position and may be another position. This will be described with reference to FIG. 3. The display position of the display omission line 10 can be set for each row according to the size of the output unit 9 in the output unit display area 7.

  For example, in the row number (001) in FIG. 3, the display position of the display omission line 10a is shifted to the left on the editing screen 1 because the size of the output unit 9 is large. Since the size of the output unit 9 is small, the display position of the display omission line 10 b is on the right side on the editing screen 1.

  Since the positions of the display skip lines 10a and 10b can be appropriately set according to the display size of the output unit 9 in the output unit display area 7, the ladder diagram can be edited more easily.

  Referring to FIG. 4, for example, as shown in FIG. 4A, a part of the input part is hidden on each of the row numbers (001) and (002) on the screen, and display omission lines 10c and 10d are displayed. 4B, when the entire input portion is displayed at the line number (001) as shown in FIG. 4B, the display omission line 10c disappears and the line number (002) is displayed. ), When the entire input part is not displayed and a part is still hidden, the display omission line 10d may not be erased. On the contrary, as shown in FIG. 4B, when the entire input part at the line number (001) is displayed on the screen and the display omission line 10c is not displayed, as shown in FIG. When the part of the input part at the line number (001) is hidden in the output part display area 7 by horizontal scrolling, the display omission line 10c may be displayed.

  In the above, the display and non-display of the display skip lines 10, 10a, 10b, 10c, and 10d may be controlled by a user operation. This is because some users do not like the display omission line display, and it is desired to be able to control the display and non-display by user's arbitrary operation.

  As described above, in the present embodiment, when the entire input unit in the input unit display area 6 is displayed without displaying the display omission line 10 on the screen, the user can input the input unit in the input unit display area 6. It is possible to immediately determine visually that the whole is displayed, and when the display omission line 10 is displayed on the screen, the entire input part in the input part display area 6 is displayed. Rather, the user can immediately visually determine that only a part of the program is displayed. For the user, the ladder diagram method according to the present embodiment can be used to modify or edit a ladder program. Various operations can be facilitated more easily.

DESCRIPTION OF SYMBOLS 1 Edit screen 2 Line number display part 3 Column number display part 4 Vertical scroll operation part 5 Horizontal scroll operation part 6 Input part display area 7 Output part display area 9 Output part 10 Display omission line

Claims (5)

The ladder diagram is divided into an input part display area that displays the input part in the horizontal direction on the screen and an output part display area that displays the output part, and each line of the ladder diagram is displayed. In the ladder diagram display method that can perform horizontal scrolling operation only in the input area display area with the fixed display of
When the entire input part is displayed in the input part display area without being omitted, the two areas are normally displayed without being divided into areas,
When there is a line in which at least a part of the input part is hidden in the input part display area, a part of the input part in the line in the input part display area is hidden and displayed. To display a display abbreviation line ,
When the display omission line in the line is displayed on the screen, the display omission line disappears when the entire input part of the line is displayed by scrolling the screen horizontally. Ladder diagram display method.   The ladder diagram is divided into an input part display area that displays the input part in the horizontal direction on the screen and an output part display area that displays the output part, and each line of the ladder diagram is displayed. In the ladder diagram display method that can perform horizontal scrolling operation only in the input area display area with the fixed display of
  When the entire input part is displayed in the input part display area without being omitted, the two areas are normally displayed without being divided into areas,
  When there is a line in which at least a part of the input part is hidden in the input part display area, a part of the input part in the line in the input part display area is hidden and displayed. To display a display abbreviation line,
  When the entire input part in the line is displayed on the screen, the display skip line is displayed when a part of the input part is hidden in the output part display area by horizontal scrolling. Characteristic ladder diagram display method. 3. The ladder diagram display method according to claim 1, wherein the display omission line is displayed between an input part display area and an output part display area corresponding to the row. Depending on the output unit size of the output unit display area for each line was arbitrarily set the display position of the display omitted lines, the ladder diagram display method according to any one of claims 1 to 3, characterized in that. The ladder diagram display method according to any one of claims 1 to 4 , wherein the display omission line and the non-display line can be controlled by a user operation.

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