JP2007079670A - Screen data generation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screen data generation device with improved operability in checking a display action of a page frame for which operation input is carried out. <P>SOLUTION: This screen data generation device is constructed of: a page frame generation part 52 generating the page frame, in which a display component for displaying condition data inside a PLC is arranged, based on operation input by a user; a display part 58 displaying the page frame on a screen; a screen data transfer part 57 transferring a page set consisting of a plurality of page frames, which can be switched to be displayed, as screen data to a programmable display device; and an initial screen information generation part 55 generating initial screen information after transfer and initial screen information in starting. The initial screen information after transfer designates a page frame to be displayed as an initial screen after transfer on the screen of the programmable display device after data transfer. The initial screen information in starting designates a page frame to be displayed initially as an initial screen in starting when the programmable display device is actuated. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a screen data creation device, and more particularly, to a programmable display that displays a page frame in which a display frame for displaying state data held in a PLC is arranged so that the page frame can be switched on a page frame basis. The present invention relates to an improvement of a screen data creation device such as a drawing editor that generates screen data for defining a display operation.

  As a control device that controls devices such as a drive device and a sensor, there is a programmable logic controller (hereinafter referred to as a PLC). The PLC is a rewritable electronic device that operates based on a control program created using a program creation tool such as a ladder editor. In such a PLC, the internal state of the PLC is usually monitored using a programmable display that displays the state data held in the PLC on the screen.

This programmable display is a display device that operates based on screen data created using a screen data creation device, and displays PLC status data obtained through communication with the PLC. The screen data creation device is composed of an application program that runs on an information processing terminal such as a personal computer, and is called a drawing editor. The screen data is composed of one or more page frames in which display components for displaying state data are arranged. In the programmable display, the screen can be displayed according to the PLC or its control program by rewriting the screen data. In the screen data creation device described above, the generated screen data is transferred to the programmable display device, and the display operation of the display device is checked based on the transferred screen data. At that time, if there is a defect in the display operation of the display device, the screen data creation device corrects the screen data and transfers the corrected screen data to the display device again. That is, the screen data is transferred to the programmable display at any time by a user operation, and is created while checking the operation on the display.
JP 2003-248504 A JP 07-114404 A Japanese Patent Laid-Open No. 06-274370 Japanese Patent Publication No. 07-92771

  The programmable display device normally restarts as the screen data is rewritten after transferring the screen data, and displays the page frame designated as the initial screen to be displayed first at the time of startup. Generally, a programmable display cannot display a plurality of page frames simultaneously on the same screen, and when displaying screen data composed of a plurality of page frames, it is necessary to sequentially switch the page frames to be displayed. is there. Therefore, in the conventional screen data creation apparatus as described above, when the display operation of the corrected page frame is to be checked, switching of the page frame to be displayed is programmable until the desired page frame is displayed. There is a problem that the operability is not good because it must be performed on the display.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a screen data creation device with improved convenience when confirming the operation of screen data on a programmable display. In particular, it is an object of the present invention to provide a screen data creation device with improved operability when checking a display operation of a page frame in which an operation input is performed. It is another object of the present invention to provide a screen data creation device that can appropriately display a modified page frame as an initial screen after transferring screen data.

  A screen data creation device according to the present invention is a screen for defining a display operation of a programmable display that displays a page frame in which a display component for displaying state data held in a PLC is arranged so that the page frame can be switched in units of page frames. A screen data creation device for generating data, a page frame generation means for generating the page frame based on an operation input by a user, a display means for displaying the page frame generated by the page frame generation means on a screen, Screen data transfer means for transferring a page set consisting of two or more page frames that can be switched and displayed as screen data to the programmable display, and screen data transferred by the screen data transfer means, programmable after data transfer Initially after transfer on the display unit screen Initial screen information after transfer that specifies the first page frame to be displayed as a screen and initial screen information that generates initial screen information at startup that specifies the first page frame to be displayed as the initial screen when starting up the programmable display And generating means.

  In this screen data creation device, when transferring a page set consisting of a plurality of page frames that can be switched and displayed as screen data to a programmable display, initial screen information after transfer that specifies a page frame to be displayed as an initial screen after transfer; Then, start-up initial screen information that specifies a page frame to be displayed as the start-up initial screen is generated. With this configuration, if the initial screen display after screen data transfer is performed on the programmable display based on the initial screen information after transfer, an appropriate initial screen after transfer can be displayed every time screen data is transferred. Therefore, when checking the display operation of the page frame where the operation input has been performed, the page frame to be displayed does not have to be switched on the programmable display until the desired page frame is displayed, thus improving the operability. In addition, it is possible to improve convenience when confirming the operation of the screen data on the programmable display.

  In addition to the above-described configuration, the screen data creation device according to the present invention generates post-transfer initial screen information for designating a page frame displayed on the screen by the display unit during screen data transfer operation. Configured as follows. According to such a configuration, the page frame displayed on the screen at the time of the screen data transfer operation is automatically displayed as the initial screen after the data transfer, so that the operation check of the page frame can be performed immediately. . Normally, the page frame displayed on the screen at the time of the screen data transfer operation is the page frame selected as the editing target. In many cases, the page frame that has been modified last is the page frame that is displayed on the screen during the screen data transfer operation. Since such a page frame is displayed as the initial screen every time screen data is transferred, it is possible to effectively debug the screen data.

  In addition to the above configuration, the screen data creation apparatus according to the present invention further includes page set editing means for editing the page set in units of page frames, and the initial screen information generating means is set as an editing target at the time of screen data transfer operation. It is configured to generate post-transfer initial screen information that specifies the selected page frame. According to such a configuration, when a plurality of page frames are displayed on the same screen at the same time during the screen data transfer operation, only the page frame selected for editing is specified. Appropriate page frames can be displayed as the initial screen after transfer.

  In addition to the above-described configuration, the screen data creation device according to the present invention specifies the page frame or window screen when the initial screen information generation unit displays a window screen associated with a specific page frame. It is configured to generate initial screen information after transfer.

  In addition to the above configuration, the screen data creation device according to the present invention is configured such that the initial screen information generation means generates post-transfer initial screen information that designates the page frame that was last edited. According to such a configuration, since the page frame edited last is automatically displayed as an initial screen after data transfer, it is possible to immediately check the operation of the page frame. Since such a page frame is displayed as the initial screen every time screen data is transferred, it is possible to effectively debug the screen data.

  In addition to the above configuration, the screen data creation device according to the present invention is displayed on the screen of the programmable display before the screen data is transferred and the mode for designating the initial screen at the start-up as the initial screen after the transfer. A mode for specifying the page frame, a mode for specifying the page frame displayed on the screen by the display means during the screen data transfer operation for the screen data to be transferred, and the page frame last edited for the screen data to be transferred Mode selection means for selecting one of the modes for designating the image based on an operation input by the user, and the initial screen information generation means generates post-transfer initial screen information based on the selection result by the mode selection means Configured as follows.

  According to the screen data creation device of the present invention, since an appropriate initial screen is displayed every time screen data is transferred, the operability when checking the display operation of the page frame on which the operation input has been performed is improved, and the screen Convenience when creating data can be improved.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing an example of a schematic configuration of a PLC display system including a screen data creation device according to Embodiment 1 of the present invention. The PLC display system 1 includes an input / output device 2, a PLC 3, a programmable display 4, and a screen data creation device 5. The operation of the screen data 41 a is confirmed on the programmable display 4 that monitors the internal state of the PLC 3.

  A PLC (Programmable Logic Controller) 3 is a control device capable of controlling a plurality of input / output devices 2 such as a drive device, a sensor, and a processing device. The PLC 3 controls each input / output device 2 based on a control program created by a program creation tool such as a ladder editor.

  The programmable display 4 is a display device that displays the state data held in the PLC 3 on the screen, and performs an operation of monitoring the internal state of the PLC 3 based on the state data obtained by communication with the PLC 3. Yes. The programmable display 4 is connected to the PLC 3 by a serial communication cable, and the status data in the PLC 3 is transmitted to the programmable display 4 via the serial communication cable. Here, data used by the PLC 3 to control the input / output device 2, data taken by the PLC 3 from the input / output device 2, and data indicating the operation state of the PLC 3 are referred to as status data.

  This programmable display 4 operates based on the screen data 41a, and displays the status data in the PLC 3 on the LCD 42. The screen data 41 a is data defining the display operation of the programmable display 4 and is stored in the screen data storage unit 41 so as to be rewritable. The programmable display 4 can display various screens according to the PLC 3 and its control program by rewriting the screen data 41a.

  The screen data creation device 5 is a screen data creation tool that generates screen data 41a, and includes, for example, an application program such as a drawing editor that operates on an information processing terminal such as a personal computer. The generated screen data is transferred to the programmable display 4 based on an operation input by the user, and the operation of the screen data is checked on the programmable display 4. Here, it is assumed that the screen data creation device 5 as a creation tool for the screen data 41a is provided by a computer-readable recording medium such as a CD-ROM or provided as one function of the information processing device.

  FIG. 2 is a block diagram illustrating a configuration example of a main part of the PLC display system of FIG. 1, in which a programmable display 4 is illustrated. The programmable display 4 includes a screen data storage unit 41, an LCD 42, a serial communication unit 43, a CPU 44, a reception unit 45, a startup program storage unit 46, and an LCD controller 47. The screen data storage unit 41, serial communication unit 43, CPU 44, reception unit 45, activation program storage unit 46, and LCD controller 47 are all connected to the internal bus.

  The serial communication unit 43 performs processing for transmitting / receiving data to / from the PLC. The reception unit 45 performs reception processing of screen data transferred from the screen data creation device. The startup program storage unit 46 is a non-volatile memory that stores a startup program. The activation program is an operation program at the time of activation or rewriting of the screen data 41a. Specifically, a startup operation when the power is turned on based on a user operation and a restart operation when the CPU 44 is reset based on a user operation are performed. In addition, when the screen data is transferred, an operation of rewriting the screen data 41a is performed. Here, it is assumed that when the screen data is transferred, the screen data 41a is immediately rewritten, and the CPU 44 is automatically restarted along with this rewriting.

  The LCD controller 47 controls an LCD (Liquid Crystal Display) 42. The screen data storage unit 41 is a storage device that stores the screen data 41a transferred from the screen data creation device in a rewritable manner. The screen data 41a includes a plurality of page frames 41b on which display components for displaying PLC state data are arranged. The display component consists of data that defines the screen display of the status data. The page frame 41b is an image frame serving as a display unit when the screen data 41a is displayed on the display screen 42a of the LCD 42. That is, the screen data 41a is a page set including a plurality of page frames 41b that can be switched and displayed on the display screen 42a, and the state data is displayed in units of page frames.

  In the programmable display device 4, an operation for displaying an initial screen on the display screen 42a by the activation program is performed at the time of activation, at the time of restart based on the user operation, or at the time of restart based on the transfer of the screen data 41a. This initial screen display operation is performed based on the initial screen information transferred from the screen data creation device. That is, at the time of startup upon power-on or at the time of restart based on a user operation, the page frame specified by the initial screen information at startup is displayed first for the rewritten screen data. When restarting based on screen data transfer, the page frame specified by the initial screen information after transfer is first displayed for the screen data after rewriting.

  FIG. 3 is a block diagram illustrating a configuration example of a main part of the PLC display system of FIG. 1, in which the screen data creation device 5 is illustrated. The screen data creation device 5 includes an operation input unit 51, a page frame generation unit 52, a page set storage unit 53, a page set editing unit 54, an initial screen information generation unit 55, an initial screen information storage unit 56, and a screen data transfer unit 57. And a display unit 58.

  The operation input unit 51 is an input device that generates an input signal based on an operation input by a user. For example, a key input device including various operation keys and a position of a pointer displayed on the display screen 58a of the display device 58 A pointing device that generates an input signal based on the above is used.

  The page frame generation unit 52 performs an operation of generating a page frame based on an operation input by the user. Display components arranged in the page frame include, for example, “counters” that change numerical values according to PLC status data, “lamps” that change lighting status according to status data, status data, and operation input "Switch" is used to change the display.

  The page set storage unit 53 is a storage device that stores a page set 53 a including a plurality of page frames 53 b generated by the page frame generation unit 52. The page set editing unit 54 performs an operation of editing the page set 53a in units of page frames 53b based on an operation input by the user. Here, the addition or deletion of the display component, the change of the position, display size, and color of the display component are referred to as editing of the page frame 53b. The page frame 53b selected as the editing target is displayed on the display screen 58a of the display unit 58.

  The screen data transfer unit 57 performs a transmission process of transferring the page set 53a stored in the page set storage unit 53 to the programmable display as screen data. The screen data is transferred to the programmable display based on an operation input by the user.

  The initial screen information generation unit 55 specifies initial page information to be displayed as the initial screen after transfer for the screen data to be transferred, and initial screen at startup to specify the page frame to be displayed as the initial screen at startup. An operation to generate information is performed. The start-up initial screen is an initial screen that is initially displayed on the programmable display when the power is turned on or when the restart is performed based on a user operation. On the other hand, the initial screen after transfer is an initial screen that is first displayed at the time of restart based on data transfer in the programmable display after transfer of screen data.

  Here, it is assumed that each initial screen information is automatically generated based on a screen data transfer operation by the user. In addition, as the initial screen information at the time of start-up, a page frame 53b determined in advance by default setting, for example, the first page in the page set 53a is designated. Further, as the initial screen information after transfer, the page frame 53b displayed on the display screen 58a at the time of screen data transfer operation is designated. Specifically, the page frame selected as the editing target is selected as the page frame 53b displayed on the display screen 58a during the screen data transfer operation. In many cases, the page frame in which the correction change was made last is the page frame 53b displayed on the screen during the screen data transfer operation. Such a page frame is displayed as an initial screen after screen data transfer.

  If a plurality of page frames 53b can be displayed on the display screen 58a at the same time, the page frame selected last is designated. The post-transfer initial screen information 56a and the startup initial screen information 56b generated by the initial screen information generation unit 55 are stored in the initial screen information storage unit 56 and transferred as screen data.

  Steps S101 to S106 in FIG. 4 are flowcharts showing an example of the screen data creation operation in the screen data creation device in FIG. First, the page frame generation unit 52 generates a page frame 53b based on an operation input by the user, and the generated plurality of page frames 53b are stored in the page set storage unit 53 as a page set 53a (step S101).

  Next, the initial screen information generation unit 55 generates post-transfer initial screen information 56a and start-up initial screen information 56b based on a screen data transfer operation by the user, and stores the initial screen information 56a in the initial screen information storage unit 56 (Step S1). S102). When each initial screen information is stored, the screen data transfer unit 57 transfers the page set 53a and each initial screen information in the page set storage unit 53 as screen data to the programmable display (step S103).

  Next, the operation of the screen data is checked on the programmable display. If there is a problem in the display operation, the defective page frame 53b is corrected and changed for the page set 53a in the page set storage unit 53. (Steps S104 to S106).

  After the modification of the page frame 53b, initial screen information is generated again based on the screen data transfer operation, and the modified screen data is transferred (steps S102 and S103). Then, an operation check is performed on the screen data after the modification change, and if there is a defect in the display operation, the processing procedure of steps S106 and S102 to S105 is further repeated.

  Steps S201 to S205 in FIG. 5 are flowcharts showing an example of a page set generation operation in the screen data creation apparatus in FIG. First, display components are arranged in the page frame, and attributes such as display size and color of the display components are changed (steps S201 and S202). When other display components are to be arranged, the processing procedure of steps S201 and S202 is repeated (step S203). When there are no other display components to be arranged, the page frame is completed and output to the page set storage unit (step S204).

  In addition, when generating a page frame, the processing procedure of steps S201 to S204 is repeated (step S205). When there are no more page frames to be generated, a page set including the page frames generated so far is completed.

  FIGS. 6A and 6B are diagrams showing an example of the operation in the programmable display of FIG. 2, and an operation pattern when switching the display screen is shown. FIG. 6A shows a case where the page frames to be displayed are sequentially switched from the menu screen. In this example, the display screen is switched in the order of “menu screen”, “page 1”, “page 2”, “page 3”, and “menu screen”.

  FIG. 6B shows a case where the page frame to be displayed is switched via the menu screen. In this example, when switching between pages 1 to 3, once the screen is switched to the menu screen and then the display screen is switched again, the page is switched.

  In the programmable display 4, since the page frame to be displayed is switched in this manner, an operation input when displaying a desired page frame is troublesome. In the present embodiment, when the screen data is transferred, the display screen of the programmable display 4 is automatically switched to the page frame specified by the initial screen information after the transfer. Operability can be improved.

  FIG. 7 is a state transition diagram showing an example of the operation in the PLC display system of FIG. 1, and shows a state when screen data is transferred. In this example, when the screen data generated in the screen data creation device 5 is transferred to the programmable display device 4, the “production management page 2” is the display screen of the screen data creation device 5 as the page frame selected last. 58a is displayed.

  This “production management page 2” is a page frame that displays the operation time for each input / output device on the production line. Here, for each of the devices A to C, a “counter” 11 that indicates the operating time and a “switch” 12 that is operated when the “counter” 11 is reset are arranged. The “counter” 11 is a numerical display component whose numerical value is switched according to the state data in the PLC, and the “switch” 12 is a display component whose input state is generated by an operation to switch the display state.

  When an operation input for transferring screen data is performed in the display state of “production control page 2”, a window 13 indicating that the screen data is being transferred is displayed, and the screen data is transmitted to the programmable display 4. At this time, the page frame in the screen data before rewriting is displayed on the display screen 42a of the programmable display 4 that is the transfer destination of the screen data. Here, it is assumed that a page frame for displaying the main management state is displayed.

  When the transfer of the screen data is completed, the programmable display 4 rewrites the screen data in the screen data storage unit 41 with the transferred screen data, and displays the initial screen after the transfer on the screen. That is, the page frame “production management page 2” displayed at the time of the screen data transfer operation is automatically switched from the main management page frame.

  According to the present embodiment, an appropriate initial screen after transfer is displayed based on initial screen information after transfer every time screen data is transferred, so when checking the display operation of the page frame where the operation input has been performed, Since it is not necessary to switch the page frame to be displayed on the programmable display 4 until a desired page frame is displayed, the operability can be improved. In particular, since the page frame displayed on the screen at the time of the screen data transfer operation is automatically displayed as the initial screen after the data transfer, the operation of the page frame can be checked immediately. Normally, the page frame displayed on the screen at the time of the screen data transfer operation is the page frame on which the operation input was last performed. In many cases, the page frame that has been modified last is the page frame that is displayed on the screen during the screen data transfer operation. Accordingly, such a page frame is displayed as an initial screen every time screen data is transferred, so that screen data can be debugged effectively.

  In the present embodiment, an example has been described in which the page frame selected last in the screen data creation device at the time of screen data transfer is used as the initial screen after transfer. However, the present invention is not limited to this. is not. For example, when a window screen associated with a specific page frame is displayed when screen data is transferred, the page frame or window screen may be used as the initial screen after transfer.

  FIG. 8 is a transition diagram showing an example of the operation of the screen data creation apparatus of FIG. 3, and shows a state when operating a display component that displays a window screen. In this example, a “window 1 call switch” 21 is arranged in the page frame “page 1”. The “window 1 call switch” 21 is a display component that displays a window screen by an operation.

  By operating the “window 1 call switch” 21, the window screen “local window 1” 21a associated with the page frame “page 1” is displayed in the display screen 58a. This window screen “local window 1” 21a is a window showing comments on the page frame “page 1” and details of the operating status of each input / output device, and is displayed on the base page frame “page 1”. . This window screen “local window 1” 21a is closed by operating the close button 21b and returns to the original screen display.

  Here, a window screen associated with a specific page frame is called a “local window”. If such a window screen is displayed during the screen data transfer operation, the window screen or the page frame associated with the window screen is displayed as the initial screen after transfer.

  Specifically, only the window screen is displayed as the initial screen after transfer, or the window screen is displayed as the initial screen after transfer together with the base page frame.

  In addition, a window screen commonly associated with a plurality of page frames with respect to such a “local window” is referred to as a “global window”. When such a window screen “global window” is displayed during the screen data transfer operation, either one of the window screen or the page frame associated with this window screen is displayed as the initial screen after transfer. The When one of a plurality of page frames associated with the “global window” is used as an initial screen after transfer, a page frame to be displayed is selected in advance by the user.

  When an input screen different from the page frame of the screen data is selected during the screen data transfer operation, a page frame predetermined as a default setting is displayed as the initial screen after transfer. . That is, in this case, the page frame specified by the initial screen information after transfer is the same as the page frame specified by the initial screen information at startup.

Embodiment 2. FIG.
In the first embodiment, an example in which a page frame selected as an editing target when screen data is transferred is displayed as an initial screen after transfer has been described. On the other hand, in the present embodiment, a case will be described in which the last edited page frame is displayed as an initial screen after transfer.

  FIG. 9 and FIG. 10 are transition diagrams showing an example of the operation in the PLC display system according to the second embodiment of the present invention, and show a state when screen data is transferred. FIG. 9 shows a state in which a specific page frame is edited and then switched to another page frame and a screen data transfer operation is performed in the screen data creation apparatus.

  In this example, a specific page frame “production management page 3” is edited. This “production management page 3” is a page frame that displays the operation state of each input / output device on the production line. Here, for each of the devices D and E, a display component “lamp” 31 indicating an operation state is arranged. This display component “lamp” is a display component whose lighting state is switched according to the internal state of the PLC.

  In this page frame “production management page 3”, editing for correcting, changing, adding, or deleting the display component related to “device E” is performed. Specifically, attributes such as the address of the PLC referred to by the display component, the arrangement of the display component, the display size, and the color are modified.

  FIG. 10 shows how the page frame that was last edited is displayed as the initial screen after transfer on the programmable display after the screen data is transferred. When the transfer of the screen data is completed, the programmable display 4 rewrites the screen data in the screen data storage unit 41 with the transferred screen data, and displays the initial screen after the transfer on the screen. As the initial screen after the transfer, the page frame “production management page 3” that has been edited last is displayed instead of the page frame “production management page 2” displayed at the time of the screen data transfer operation.

  According to the present embodiment, since the page frame edited last is automatically displayed as the initial screen after data transfer, it is possible to immediately check the operation of the page frame. Since such a page frame is displayed as an initial screen after transfer every time screen data is transferred, screen data can be debugged effectively.

  In the first embodiment, an example has been described in which a page frame selected as an editing target when data is transferred is displayed as an initial screen after transfer. In the second embodiment, the example in which the last edited page frame is displayed as the initial screen after transfer has been described. However, the present invention is not limited to this. For example, specify the page frame specified in the initial screen information at startup as the initial screen after transfer, specify the page frame displayed on the programmable display screen before transferring screen data, and select it for editing A page frame that has been edited may be designated, or a page frame that has been edited last may be designated.

  FIG. 11 is a block diagram showing another configuration example of the screen data creation apparatus. This screen data creation device 5a is different from the screen data creation device 5 of FIG. 3 in that a mode selection unit 61 is provided. Based on the operation input by the user, the mode selection unit 61 designates the initial screen after transfer on the initial screen after transfer, and the page frame displayed on the screen of the programmable display before the screen data is transferred. An operation of selecting one of a mode for designating, a mode for designating a page frame selected as an object to be edited, and a mode for designating a page frame edited last is performed.

  The mode for designating the initial screen at start-up is a mode for designating the page frame specified by the initial screen information at start-up by the initial screen information at transfer. In the mode to specify the page frame displayed on the programmable display screen before the screen data transfer, the page frame corresponding to the page frame displayed on the programmable display screen before the screen data transfer is displayed. This mode is designated by the initial screen information after transfer.

  If the page frame specified by the initial screen information after transfer is difficult to specify, such as being deleted, the page frame specified as the default setting is displayed.

Embodiment 3 FIG.
In the first and second embodiments, an example in which the present invention is applied to a screen data creation device such as a drawing editor operating on an information processing terminal has been described. However, the present invention is not limited to this, and a screen It may be regarded as an invention of a data editing method. That is, the screen data editing method according to the present invention is a screen data that defines the display operation of a programmable display that displays a page frame in which a display component for displaying state data in the PLC is arranged so that the page frame can be switched in units of page frames. And a page frame generating step for generating the page frame based on an operation input by a user, a display step for displaying the generated page frame on a screen, and two or more page frames that can be switched and displayed. A screen data transfer step for transferring a page set consisting of the above to the programmable display as screen data, and a page frame to be displayed first as an initial screen after transfer on the screen of the programmable display after the data transfer. Specify initial screen information after transfer And configured to include an initial screen information generating step of generating a startup initial screen information for designating the page frame to be displayed first as a startup initial screen at the start of the programmable display device.

  According to such an editing method, the operability when checking the display operation of the page frame where the operation input is performed is improved, so that the convenience when checking the operation of the screen data on the programmable display is improved. be able to.

It is the block diagram which showed an example of schematic structure of the PLC display system containing the screen data creation apparatus by Embodiment 1 of this invention. It is the block diagram which showed the structural example in the principal part of the PLC display system of FIG. 1, and the programmable display 4 is shown. It is the block diagram which showed the structural example in the principal part of the PLC display system of FIG. 1, and the screen data creation apparatus 5 is shown. 4 is a flowchart showing an example of a screen data creation operation in the screen data creation device of FIG. 3. 4 is a flowchart showing an example of a page set generation operation in the screen data creation apparatus of FIG. 3. It is the figure which showed an example of the operation | movement in the programmable display of FIG. 2, and the operation | movement pattern at the time of switching a display screen is shown. FIG. 2 is a state transition diagram showing an example of an operation in the PLC display system of FIG. 1, showing a state when screen data is transferred. FIG. 4 is a transition diagram illustrating an example of an operation in the screen data creation device in FIG. 3, showing a state when operating a display component that displays a window screen. It is the transition diagram which showed an example of the operation | movement in the PLC display system by Embodiment 2 of this invention. It is the transition diagram which showed an example of the operation | movement in the PLC display system by Embodiment 2 of this invention. It is the block diagram which showed the other structural example of the screen data creation apparatus.

Explanation of symbols

1 PLC Display System 2 Input / Output Device 3 PLC
4 Programmable Display 5 Screen Data Creation Device 41 Screen Data Storage Unit 41a Screen Data 41b Page Frame 42 LCD
42a Display screen 43 Serial communication unit 44 CPU
45 Receiving unit 46 Start-up program storage unit 47 LCD controller 51 Operation input unit 52 Page frame generation unit 53 Page set storage unit 53a Page set 53b Page frame 54 Page set editing unit 55 Initial screen information generation unit 56 Initial screen information storage unit 56a Initial screen information after transfer 56b Initial screen information at start-up 57 Screen data transfer unit 58 Display unit 58a Display screen 61 Mode selection unit

Claims (6)

In a screen data creation device for generating screen data for defining a display operation of a programmable display that displays a page frame in which a display component for displaying state data held in a PLC is arranged so as to be switched in units of page frames ,
Page frame generation means for generating the page frame based on an operation input by a user;
Display means for displaying the page frame generated by the page frame generation means on a screen;
Screen data transfer means for transferring a page set comprising two or more page frames that can be switched and displayed as screen data to the programmable display;
For the screen data transferred by the screen data transfer means, the initial screen information after transfer that specifies the page frame to be displayed first as the initial screen after transfer on the screen of the programmable display after the data transfer, and the programmable display A screen data creation device comprising: initial screen information generation means for generating initial screen information at startup for designating a page frame to be initially displayed as an initial screen at startup at startup.   2. The screen data creation according to claim 1, wherein the initial screen information generation means generates post-transfer initial screen information that designates a page frame displayed on the screen by the display means during a screen data transfer operation. apparatus. A page set editing means for editing the page set in units of page frames;
3. The screen data creation apparatus according to claim 2, wherein the initial screen information generation means generates post-transfer initial screen information that designates a page frame selected as an editing target during screen data transfer operation.   The initial screen information generating means, when a window screen associated with a specific page frame is displayed, generates post-transfer initial screen information specifying the page frame or window screen. 2. The screen data creation device according to 2 or 3.   2. The screen data creation apparatus according to claim 1, wherein the initial screen information generation means generates post-transfer initial screen information for designating a page frame edited last. As the initial screen after transfer, the mode for specifying the initial screen at startup, the mode for specifying the page frame displayed on the screen of the programmable display before the transfer of screen data, and the screen data for the screen data to be transferred Based on the operation input by the user, either the mode for designating the page frame displayed on the screen by the display means at the time of the transfer operation or the mode for designating the page frame last edited for the screen data to be transferred Comprising mode selection means for selecting,
2. The screen data creation apparatus according to claim 1, wherein the initial screen information generation unit generates post-transfer initial screen information based on a selection result by the mode selection unit.

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