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EP-4742232-A1 - PROGRAMMABLE DISPLAY APPARATUS, SCREEN SYNCHRONIZATION SYSTEM, AND SCREEN SYNCHRONIZATION METHOD

EP4742232A1EP 4742232 A1EP4742232 A1EP 4742232A1EP-4742232-A1

Abstract

A programmable display (1) includes a display section (10) and a control device. In a case where the control device permits connections of remote apparatuses (2A, 2B) in a synchronous mode and permits a connection of a remote apparatus (2C) in an asynchronous mode, the control device prohibits an operation on an identical-content region of a screen displayed on each of remaining apparatuses which are not an operated apparatus whose screen is being operated among the programmable display (1) and the remote apparatuses (2A through 2C), the identical-content region having content identical with that of the screen displayed on the operated apparatus.

Inventors

  • TSUJIOKA, Masayuki
  • KANEHIRA FUKUI, Saeko

Assignees

  • Schneider Electric Japan Holdings Ltd.

Dates

Publication Date
20260513
Application Date
20230704

Claims (10)

  1. A programmable display connectable to a plurality of remote apparatuses including a first remote apparatus and a second remote apparatus, said programmable display comprising: a display section that displays a screen; and a control device that permits, for each of the plurality of remote apparatuses, a connection in a synchronous mode or a connection in an asynchronous mode, the synchronous mode being a mode in which at least one of the plurality of remote apparatuses displays a synchronous screen which is at least partially synchronized with a display screen displayed on the display section, the asynchronous mode being a mode in which at least one of the plurality of remote apparatuses is permitted to display a screen different from the synchronous screen, and in a first case in which a connection of the first remote apparatus in the synchronous mode is permitted and a connection of the second remote apparatus in the asynchronous mode is permitted, and in a state in which the second remote apparatus displays a screen including content that is at least partially identical with that of the display screen, the control device prohibiting an operation on an identical-content region of a screen displayed on each of first remaining apparatuses which are not a first operated apparatus whose screen is being operated among the programmable display, the first remote apparatus, and the second remote apparatus, the identical-content region having content identical with that of the screen displayed on the first operated apparatus.
  2. The programmable display as set forth in claim 1, wherein: in a second case in which a connection of the first remote apparatus in the asynchronous mode is permitted and a connection of the second remote apparatus in the asynchronous mode is permitted, and in a state in which the first remote apparatus displays a screen including content that is at least partially identical with that of a screen displayed on the second remote apparatus, the control device prohibits an operation on an identical-content region of a screen displayed on a second remaining apparatus which is not a second operated apparatus whose screen is being operated among the first remote apparatus and the second remote apparatus, the identical-content region having content identical with that of the screen displayed on the second operated apparatus.
  3. The programmable display as set forth in claim 1, wherein: the plurality of remote apparatuses further include a third remote apparatus; and in a third case in which a connection of the first remote apparatus in the synchronous mode is permitted, a connection of the second remote apparatus in the asynchronous mode is permitted, and a connection of the third remote apparatus in the asynchronous mode is permitted, and in a state in which the second remote apparatus displays a screen including content that is at least partially identical with that of a screen displayed on the third remote apparatus, the control device prohibits an operation on an identical-content region of a screen displayed on a third remaining apparatus which is not a third operated apparatus whose screen is being operated among the programmable display and the first remote apparatus, the identical-content region having content identical with that of the screen displayed on the third operated apparatus, and prohibits an operation on an identical-content region of a screen displayed on a fourth remaining apparatus which is not a fourth operated apparatus whose screen is being operated among the second remote apparatus and the third remote apparatus, the identical-content region having content identical with that of the screen displayed on the fourth operated apparatus.
  4. The programmable display as set forth in claim 1, wherein: in the first case, and in a state in which the second remote apparatus displays a screen including content that is at least partially identical with that of the display screen, the control device causes operation information to be displayed on the screen displayed on each of the first remaining apparatuses, the operation information indicating content pertaining to an operation on the screen displayed on the first operated apparatus.
  5. The programmable display as set forth in claim 4, wherein: the control device determines whether or not an operation on the screen displayed on the first operated apparatus is an effective operation; and in the first case, and in a state in which the second remote apparatus displays a screen including content that is at least partially identical with that of the display screen, when the control device has determined that the operation on the screen displayed on the first operated apparatus is an effective operation, the control device causes the operation information to be displayed on the screen displayed on each of the first remaining apparatuses, and when the control device has determined that the operation on the screen displayed on the first operated apparatus is an ineffective operation, the control device does not cause the operation information to be displayed on the screen displayed on each of the first remaining apparatuses.
  6. The programmable display as set forth in claim 1, wherein: the screen displayed on each of the first remaining apparatuses is a screen that defines a composite image composed of a plurality of layer images which overlap with each other; and the identical-content region is a region that defines one or some of the plurality of layer images included in the composite image.
  7. The programmable display as set forth in claim 6, wherein: in the first case, and in a state in which the second remote apparatus displays a screen including content that is at least partially identical with that of the display screen, the control device sets, for the screen displayed on each of the first remaining apparatuses, a layer image which is not a layer image defined by the identical-content region among the plurality of layer images to be an image displaying operation information that indicates content pertaining to an operation on the screen displayed on the first operated apparatus.
  8. The programmable display as set forth in claim 6, wherein: in the first case, and in a state in which the second remote apparatus displays a screen including content that is at least partially identical with that of the display screen, for the screen displayed on the first remote apparatus, the control device sets one or some of the plurality of layer images to be images displayed in a first display format, and for the screen displayed on the second remote apparatus, the control device sets one or some of the plurality of layer images to be images displayed in a second display format different from the first display format.
  9. A screen synchronization system, comprising: a programmable display recited in any one of claims 1 through 8; and the plurality of remote apparatuses.
  10. A screen synchronization method for synchronizing screens using a programmable display that is connectable to a plurality of remote apparatuses including a first remote apparatus and a second remote apparatus, said screen synchronization method comprising: a display step of displaying a screen on a display section of the programmable display; and a connection step of permitting, for each of the plurality of remote apparatuses, a connection in a synchronous mode or a connection in an asynchronous mode, the synchronous mode being a mode in which at least one of the plurality of remote apparatuses displays a synchronous screen which is at least partially synchronized with a display screen displayed on the display section, the asynchronous mode being a mode in which at least one of the plurality of remote apparatuses is permitted to display a screen different from the synchronous screen, and said screen synchronization method further comprising a prohibition step of, in a case in which a connection of the first remote apparatus in the synchronous mode is permitted and a connection of the second remote apparatus in the asynchronous mode is permitted, and in a state in which the second remote apparatus displays a screen including content that is at least partially identical with that of the display screen, prohibiting an operation on an identical-content region of a screen displayed on each of remaining apparatuses which are not an operated apparatus whose screen is being operated among the programmable display, the first remote apparatus, and the second remote apparatus, the identical-content region having content identical with that of the screen displayed on the operated apparatus.

Description

Technical Field The present invention relates to a programmable display, a screen synchronization system, and a screen synchronization method. Background Art Patent Literature 1 discloses a control system that includes a programmable logic controller (PLC), a management device, and a plurality of human machine interface (HMI) devices. The management device acquires necessary data from the PLC and prepares screen data for the plurality of HMI devices to prepare operation monitoring screens. The control system has a non-occupation mode in which any of the plurality of HMI devices can receive a user operation and an occupation mode in which only a specific HMI device can receive a user operation. In a case where a user carries out an occupation operation on any of the plurality of HMI devices, an operation is received only on the HMI device on which the occupation operation has been carried out. The management device has a function of, in the occupation mode, disabling a user operation on an HMI device other than the HMI device on which the occupation operation has been carried out. Citation List [Patent Literature] [Patent Literature 1] Japanese Patent Application Publication Tokukai No. 2014-085782 Summary of Invention Technical Problem In the control system disclosed in Patent Literature 1, it is not assumed that user operations on identical-content regions of screens, which have identical content between the management device and the plurality of HMI devices, are enabled or disabled. An object of an aspect of the present invention is to prevent, among a programmable display and a plurality of remote apparatuses, simultaneous operations on identical-content regions of screens respectively including identical-content regions having identical content. Solution to Problem In order to attain the object, a programmable display in accordance with an aspect of the present invention is connectable to a plurality of remote apparatuses including a first remote apparatus and a second remote apparatus, the programmable display including: a display section that displays a screen; and a control device that permits, for each of the plurality of remote apparatuses, a connection in a synchronous mode or a connection in an asynchronous mode, the synchronous mode being a mode in which at least one of the plurality of remote apparatuses displays a synchronous screen which is at least partially synchronized with a display screen displayed on the display section, the asynchronous mode being a mode in which at least one of the plurality of remote apparatuses is permitted to display a screen different from the synchronous screen, and in a first case in which a connection of the first remote apparatus in the synchronous mode is permitted and a connection of the second remote apparatus in the asynchronous mode is permitted, and in a state in which the second remote apparatus displays a screen including content that is at least partially identical with that of the display screen, the control device prohibiting an operation on an identical-content region of a screen displayed on each of first remaining apparatuses which are not a first operated apparatus whose screen is being operated among the programmable display, the first remote apparatus, and the second remote apparatus, the identical-content region having content identical with that of the screen displayed on the first operated apparatus. A screen synchronization method in accordance with an aspect of the present invention is a method for synchronizing screens using a programmable display that is connectable to a plurality of remote apparatuses including a first remote apparatus and a second remote apparatus, the screen synchronization method including: a display step of displaying a screen on a display section of the programmable display; and a connection step of permitting, for each of the plurality of remote apparatuses, a connection in a synchronous mode or a connection in an asynchronous mode, the synchronous mode being a mode in which at least one of the plurality of remote apparatuses displays a synchronous screen which is at least partially synchronized with a display screen displayed on the display section, the asynchronous mode being a mode in which at least one of the plurality of remote apparatuses is permitted to display a screen different from the synchronous screen, and the screen synchronization method further including a prohibition step of, in a case in which a connection of the first remote apparatus in the synchronous mode is permitted and a connection of the second remote apparatus in the asynchronous mode is permitted, and in a state in which the second remote apparatus displays a screen including content that is at least partially identical with that of the display screen, prohibiting an operation on an identical-content region of a screen displayed on each of remaining apparatuses which are not an operated apparatus whose screen is being operated among th