WO2018216082A1 - Dispositif d'affichage programmable et procédé d'acquisition de données - Google Patents

Dispositif d'affichage programmable et procédé d'acquisition de données Download PDF

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Publication number
WO2018216082A1
WO2018216082A1 PCT/JP2017/019073 JP2017019073W WO2018216082A1 WO 2018216082 A1 WO2018216082 A1 WO 2018216082A1 JP 2017019073 W JP2017019073 W JP 2017019073W WO 2018216082 A1 WO2018216082 A1 WO 2018216082A1
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WIPO (PCT)
Prior art keywords
data
acquisition
programmable display
unit
display
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PCT/JP2017/019073
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English (en)
Japanese (ja)
Inventor
将昇 曽澤
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三菱電機株式会社
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to CN201780077290.1A priority Critical patent/CN110100208B/zh
Priority to JP2017560355A priority patent/JP6400232B1/ja
Priority to PCT/JP2017/019073 priority patent/WO2018216082A1/fr
Publication of WO2018216082A1 publication Critical patent/WO2018216082A1/fr

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts

Definitions

  • the present invention relates to a programmable display and a data acquisition method for acquiring data collected by an external device.
  • Programmable displays used in the FA (Factory Automation) field which automates production processes in factories, are connected to control devices such as programmable logic controllers (PLCs) and display the values in the internal memory of control devices. To do. Thereby, the programmable display is displaying the state of the control object apparatus currently controlled by the control apparatus.
  • FA Vectory Automation
  • PLCs programmable logic controllers
  • the production line When such a programmable display device is applied to a factory production line, the production line includes a plurality of control target devices, a plurality of control devices for controlling the plurality of control target devices, and a plurality of control devices.
  • a plurality of programmable displays for displaying information.
  • a plurality of control devices and a plurality of programmable displays are connected to the same network using a communication line or the like.
  • the programmable display can acquire and display data collected by another programmable display that is an external device from the other programmable display.
  • the substitute programmable display uses the screen information for displaying the screen of the other programmable display, and displays the screen of the other programmable display in substitution. .
  • Patent Document 1 which is the above-described conventional technique, the proxy programmable display needs to acquire data of all pixels on the screen, so that the communication amount increases and a large memory capacity is required. There was a problem.
  • the present invention has been made in view of the above, and an object thereof is to obtain a programmable display capable of efficiently acquiring data collected by another programmable display that is an external device.
  • the present invention provides a programmable display that includes a first collection of first collection data collected by another programmable display that is a first external device.
  • An acquisition unit that acquires acquired data that is a first part of data is provided.
  • the acquisition unit obtains the position of the acquired data in the first collected data based on the first identification information indicating the situation when the second portion included in the first collected data is collected,
  • the acquisition data corresponding to the position is requested and acquired from another programmable display.
  • the programmable display according to the present invention has an effect that data collected by another programmable display that is an external device can be efficiently acquired.
  • the figure which shows the structure of a display system provided with the programmable display concerning embodiment The figure which shows the structure of the programmable display concerning embodiment
  • the figure for demonstrating the transmission / reception process of the data which the programmable display concerning an embodiment performs
  • the flowchart which shows the process sequence in case the programmable display concerning embodiment acquires a fixed number of acquisition data in the new arrival order
  • the flowchart which shows the process sequence in case the programmable display concerning embodiment acquires specific acquisition data
  • the flowchart which shows the process sequence of the continuation determination process of transmission / reception concerning embodiment The flowchart which shows the process sequence of the periodic data acquisition process concerning embodiment
  • the figure for demonstrating the setting process of the screen data concerning embodiment The figure which shows the hardware structural example of the programmable display concerning embodiment
  • FIG. 1 is a diagram illustrating a configuration of a display system including a programmable display according to an embodiment.
  • the display system 100 includes a programmable display 1A that is a first programmable display and a programmable display 1B that is a second programmable display.
  • the programmable display 1B is a device that acquires data from the programmable display 1A
  • the programmable display 1B is another programmable display that is a first external device as viewed from the programmable display 1A. .
  • Programmable displays 1A and 1B are control devices used in the field of FA called factory automation or factory automation.
  • the programmable displays 1A and 1B are connected by a communication line 2 that performs data communication using Ethernet (registered trademark).
  • Ethernet registered trademark
  • the programmable displays 1A and 1B are installed at remote positions.
  • the programmable display 1A is connected to the PLC 4A via the communication line 3A.
  • the PLC 4A is an FA controller that controls various controlled devices using a ladder language specialized in machine control. Therefore, the PLC 4A is connected to a controlled device (not shown) such as a sensor or a robot, and controls the controlled device and collects various information from the controlled device. Further, the PLC 4A determines the operation status of the controlled device or the surrounding environment status of the controlled device based on various information collected from the controlled device, and generates information indicating the determination result.
  • An example of information indicating the determination result is an alarm to the operation status of the controlled device or an alarm to the surrounding environment status of the controlled device.
  • the programmable display 1A includes a display 20A that displays information, and the programmable display 1B includes a display 20B that displays information.
  • the programmable display 1A collects later-described collected data 15A indicating information such as alarms collected by the PLC 4A from the controlled device from the PLC 4A and displays the collected data 15A on the display 20A.
  • the programmable display 1B acquires later-described collected data 15B indicating information such as alarms collected by the later-described PLC 4B from the controlled device from the PLC 4B connected to the programmable display 1B, and displays it on the display 20B.
  • the alarm information displayed on the displays 20A and 20B includes the error content and the error occurrence time.
  • the programmable display 1B acquires later-described acquisition data 16B indicating alarm information from the programmable display 1A via the communication line 2 and displays it on the display 20B.
  • the acquired data 16B is a first part of the collected data 15A that is the first collected data, and is data acquired by the programmable display 1B.
  • the programmable display 1B acquires the acquisition data 16B from the collection data 15A collected by the programmable display 1A.
  • the programmable display 1B can handle the acquired data 16B as if it were sharing the acquired data 16B with the programmable display 1A.
  • the programmable display 1B may acquire the acquisition data 16B from a programmable display other than the programmable display 1A.
  • the programmable display 1B is connected to a programmable display other than the programmable display 1A.
  • the programmable displays 1A and 1B may perform data communication between the programmable displays 1A and 1B according to a standard other than Ethernet (registered trademark).
  • FIG. 2 is a diagram illustrating a configuration of a programmable display according to the embodiment.
  • the programmable display 1 ⁇ / b> A according to the embodiment and the programmable display 1 ⁇ / b> B according to the embodiment are connected via the communication line 2.
  • the programmable display 1A is connected to the PLC 4A via the communication line 3A
  • the programmable display 1B is connected to the PLC 4B via the communication line 3B.
  • the programmable display 1A includes a communication unit 6A that performs data communication with the programmable display 1B via the communication line 2, and a data collection unit 5A that collects alarm data and log data generated by the PLC 4A. Yes. Of the alarm data and log data generated by the PLC 4A, the data collected by the data collecting unit 5A is the collected data 15A.
  • the programmable display 1A has a fixed-cycle event generation unit 11A that sends an instruction to transmit the collected data 15A collected by the data collection unit 5A from the PLC 4A to the programmable display 1B at regular intervals to the acquisition cooperation unit 9A described later. It has.
  • the programmable display 1A includes an acquisition cooperation unit 9A that transmits the collected data 15A collected from the PLC 4A by the data collection unit 5A to the programmable display 1B in cooperation with the programmable display 1B.
  • the programmable display 1A includes an internal memory 7A for temporarily storing the collected data 15A collected by the data collecting unit 5A.
  • the programmable display 1A includes a storage unit 8A that is a storage for storing the collected data 15A stored in the internal memory 7A and having a data amount larger than a certain amount. Further, the programmable display 1A includes a display unit 10A that displays the collected data 15A collected by the data collecting unit 5A.
  • the communication unit 6A is connected to the data collecting unit 5A, and reads the collected data 15A from the PLC 4A in accordance with an instruction from the data collecting unit 5A.
  • the communication unit 6A is connected to the acquisition cooperation unit 9A, and transmits the acquisition data 16B to the programmable display 1B according to an instruction from the acquisition cooperation unit 9A.
  • data acquired by the programmable display 1B is acquired data 16B. Therefore, the acquired data 16B is a part of the collected data 15A.
  • the communication unit 6A may execute communication processing using a dedicated circuit, or may execute communication processing using a communication program that is software.
  • the collected data 15A collected from the PLC 4A by the data collecting unit 5A is a value of the internal memory of the PLC 4A.
  • the data collection unit 5A collects the collected data 15A from the PLC 4A via the communication unit 6A.
  • the data collection unit 5A stores the collected data 15A collected from the PLC 4A in the internal memory 7A.
  • the data collection unit 5A may collect the collected data 15A using a dedicated circuit, or may collect the collected data 15A using a data collection program that is software.
  • the internal memory 7A is connected to the data collection unit 5A, the acquisition cooperation unit 9A, the storage unit 8A, and the display unit 10A.
  • the programmable display 1A converts the collected data 15A into a file and stores it in the storage unit 8A.
  • the storage unit 8A is a drive such as a nonvolatile memory or an HDD (Hard Disk Drive).
  • the display unit 10A controls the display 20A to display the collected data 15A on the display 20A.
  • the display unit 10A displays the collected data 15A stored in the storage unit 8A or the internal memory 7A on the display 20A.
  • the display unit 10A may display the collected data 15A using a dedicated circuit, or may display the collected data 15A using a display program that is software.
  • the fixed-cycle event generation unit 11A generates a first fixed-cycle event at a fixed cycle.
  • the first fixed-cycle event is an event for extracting the acquired data 16B from the collected data 15A and transmitting it to the programmable display 1B.
  • the fixed-cycle event generation unit 11A includes type information for identifying the type of the acquired data 16B in the first fixed-cycle event to be generated.
  • the correspondence relationship between the type of acquisition data 16B requesting acquisition and the period at which the first fixed-cycle event is generated is set in the fixed-cycle event generation unit 11A in advance by the user. Note that the correspondence relationship between the type of the acquisition data 16B requesting acquisition and the cycle for generating the first fixed-cycle event is set in the fixed-cycle event generation unit 11A based on an instruction from the programmable display 1B. Good.
  • the fixed-cycle event generation unit 11A generates a first fixed-cycle event for each type of acquired data 16B set by the user at a cycle set by the user.
  • the first periodic event generation unit 11A sends the generated first periodic event to the acquisition cooperation unit 9A and acquires transmission of the acquisition data 16B to the programmable display 1B. Let 9A do.
  • the fixed-cycle event generation unit 11A may generate the first fixed-cycle event at an irregular timing set by the user.
  • the acquisition cooperation unit 9A sends the acquisition data 16B specified from the programmable display 1B to the programmable display 1B by cooperating with the acquisition cooperation unit 9B included in the programmable display 1B. At this time, the acquisition cooperation unit 9A sends the acquisition data 16B to the programmable display device 1B via the acquisition cooperation unit 9B.
  • the acquisition cooperation unit 9A may control cooperation processing with the acquisition cooperation unit 9B and transmission processing of the acquisition data 16B using a dedicated circuit, or cooperation with the acquisition cooperation unit 9B using a collection cooperation program that is software. You may control a process and the transmission process of the acquisition data 16B.
  • the programmable display 1B has the same function as the programmable display 1A. That is, the programmable display 1B has the same function as the communication unit 6B having the same function as the communication unit 6A, the data collection unit 5B having the same function as the data collection unit 5A, and the acquisition cooperation unit 9A. And the fixed-cycle event generation unit 11B having the same function as the fixed-cycle event generation unit 11A. Of the alarm data and log data generated by the PLC 4B, the data collected by the data collection unit 5B is the collected data 15B, which is the second collected data.
  • the programmable display 1B includes an internal memory 7B having the same function as the internal memory 7A, a display unit 10B having the same function as the display unit 10A, and a storage unit having the same function as the storage unit 8A. 8B.
  • the programmable display 1B may not include the data collection unit 5B. Moreover, the programmable display 1B does not need to be connected to PLC4B. Here, a case where the programmable display 1B includes the data collection unit 5B and the programmable display 1B is connected to the PLC 4B will be described.
  • the communication unit 6B performs data communication with the programmable display 1A via the communication line 2.
  • the communication unit 6B is connected to the data collecting unit 5B, and reads the collected data 15B from the PLC 4B connected to the programmable display 1B in accordance with an instruction from the data collecting unit 5B.
  • the communication unit 6B is connected to the acquisition cooperation unit 9B, and transmits a request for the acquisition data 16B to the programmable display 1A according to an instruction from the acquisition cooperation unit 9B.
  • the communication unit 6B may control communication processing using a dedicated circuit, or may control communication processing using a communication program that is software.
  • the data collection unit 5B collects alarm data and log data generated by the PLC 4B as the second external device.
  • the collected data 15B collected from the PLC 4B by the data collecting unit 5B is a value in the internal memory of the PLC 4B.
  • the data collection unit 5B collects the collected data 15B from the PLC 4B via the communication unit 6B. Then, the data collecting unit 5B stores the collected data 15B collected from the PLC 4B in the internal memory 7B.
  • the data collection unit 5B may collect the collected data 15B using a dedicated circuit, or may collect the collected data 15B using a data collection program that is software.
  • the internal memory 7B temporarily stores the acquisition data 16B acquired from the acquisition cooperation unit 9A by the acquisition cooperation unit 9B.
  • the internal memory 7B is connected to the data collection unit 5B, the acquisition cooperation unit 9B, the storage unit 8B, and the display unit 10B.
  • the programmable display device 1B converts the acquired data 16B into a file and stores it in the storage unit 8B.
  • the programmable display device 1B converts the collected data 15B into a file and stores it in the storage unit 8B.
  • the storage unit 8B stores the acquired data 16B or the collected data 15B stored in the internal memory 7B and having a data amount larger than a certain amount.
  • the storage unit 8B is a drive such as a nonvolatile memory or HDD.
  • the storage unit 8B stores screen data 17B, which is display component data for displaying various information.
  • the screen data 17B is setting data created using a dedicated program for setting screen information and operation information of the programmable display 1B.
  • the screen data 17B includes information on how to display the value of which part of the internal memory of the PLC 4B, which is a control device connected to the programmable display 1B, on the screen.
  • the screen data 17B is created or changed by a PC (Personal Computer) (not shown) and sent to the programmable display 1B.
  • the screen data 17B may be created or changed by the programmable display 1B.
  • the display unit 10B displays the acquired data 16B on the display 20B by controlling the display 20B.
  • the display unit 10B displays the acquired data 16B stored in the storage unit 8B or the internal memory 7B on the display 20B.
  • the display unit 10B may display the acquired data 16B using a dedicated circuit, or may display the acquired data 16B using a display program that is software.
  • the display unit 10B may display the collected data 15B collected by the data collecting unit 5B on the display 20B.
  • the fixed-cycle event generation unit 11B generates a second fixed-cycle event at a fixed cycle.
  • the second periodic event is an event for requesting the collection data 15A collected from the PLC 4A by the data collection unit 5A to the programmable display 1A at regular intervals.
  • the fixed-cycle event generation unit 11B includes type information for identifying the type of the acquired data 16B in the second fixed-cycle event to be generated.
  • the correspondence relationship between the type of acquisition data 16B requesting acquisition and the period for generating the second fixed-cycle event is set in the fixed-cycle event generating unit 11B in advance by the user. Note that the correspondence relationship between the type of the acquisition data 16B requesting acquisition and the cycle for generating the second fixed-cycle event is set in the fixed-cycle event generating unit 11B based on an instruction from the programmable display 1A. Good.
  • the fixed-cycle event generation unit 11B generates a second fixed-cycle event for each type of acquired data 16B set by the user at a cycle set by the user.
  • the periodic event generation unit 11B sends the generated second periodic event to the acquisition cooperation unit 9B, and acquires the request to the programmable display 1A for the acquisition data 16B. Let the part 9B do it.
  • the fixed-cycle event generation unit 11B may generate the second fixed-cycle event at an irregular timing set by the user.
  • the fixed-cycle event generation unit 11B may generate a third fixed-cycle event at a fixed cycle.
  • the third fixed-cycle event is an event for extracting acquired data to be sent to a third external device such as the programmable display 1A or another display from the collected data 15B and transmitting it to another programmable display.
  • the third fixed-cycle event is an event for transmitting the acquired data to another programmable display, like the first fixed-cycle event.
  • the acquisition data to be sent to the third external device is data that the third external device acquires from the programmable display 1B, and is part of the collected data 15B.
  • the acquisition cooperation unit 9B uses the third external device such as the programmable display 1A or other display to acquire the acquired data extracted from the collected data 15B. Send to.
  • the fixed-cycle event generation unit 11B generates a third fixed-cycle event with a cycle set by the user. Note that the fixed-cycle event generation unit 11B may generate the third fixed-cycle event at an irregular timing set by the user.
  • the acquisition cooperation unit 9B sends an acquisition request for the acquisition data 16B, which is a part of the collected data 15A, to the acquisition cooperation unit 9A.
  • the acquisition request sent from the acquisition cooperation unit 9B to the acquisition cooperation unit 9A includes type information for identifying the type of the acquisition data 16B.
  • the acquisition cooperation unit 9B may send an acquisition request to the acquisition cooperation unit 9A at a timing set by the user, or may send an acquisition request to the acquisition cooperation unit 9A according to an instruction from the periodic event generation unit 11B.
  • the acquisition cooperation unit 9B receives the acquisition data 16B from the programmable display 1A by cooperating with the acquisition cooperation unit 9A.
  • the acquisition cooperation part 9B has the function of the acquisition part which acquires the acquisition data 16B from 1 A of programmable displays.
  • the acquisition cooperation unit 9A has a function of an acquisition unit that acquires acquisition data from the programmable display 1B.
  • the acquisition cooperation unit 9B has a function of a providing unit that provides the collected data 15B to an external device such as the programmable display 1A.
  • the acquisition cooperation unit 9A has a function of a providing unit that provides the collected data 15A to an external device such as the programmable display 1B.
  • the acquisition cooperation unit 9B may execute cooperation processing with the acquisition cooperation unit 9A and reception processing of the acquisition data 16B using a dedicated circuit, or cooperation with the acquisition cooperation unit 9A using a collection cooperation program that is software. Processing and reception processing of the acquired data 16B may be executed.
  • the programmable display 1B uses the collection data 15A, which is data collected by the programmable display 1A, not the internal memory of the PLC 4A. For this reason, the programmable display 1B can acquire the acquisition data 16B from the collected data 15A that does not depend on the screen data of the programmable display 1A.
  • FIG. 3 is a diagram for explaining data transmission / reception processing performed by the programmable display according to the embodiment.
  • illustration of the PLC 4B, the data collecting unit 5B, and the collected data 15B is omitted.
  • the data collection unit 5A of the programmable display 1A collects the collected data 15A from the PLC 4A via the communication unit 6A. Then, the data collecting unit 5A stores the collected data 15A collected from the PLC 4A in the internal memory 7A.
  • the acquisition cooperation part 9B of the programmable display 1B sends an acquisition request for the acquisition data 16B to the acquisition cooperation part 9A. Thereby, the acquisition cooperation unit 9A extracts the acquisition data 16B designated by the acquisition request from the collection data 15A.
  • the acquisition cooperation unit 9A selects and reads the acquisition data 16B specified by the acquisition request from the collection data 15A in the internal memory 7A. Furthermore, the acquisition cooperation unit 9A transmits the read acquisition data 16B to the programmable display device 1B via the communication unit 6A. Thereby, the communication part 6B of the programmable display 1B receives the acquisition data 16B, and sends the received acquisition data 16B to the acquisition cooperation part 9B. Then, the acquisition cooperation unit 9B stores the acquisition data 16B in the internal memory 7B.
  • the display unit 10B reads the acquired data 16B from the storage unit 8B or the internal memory 7B, and reads the screen data 17B from the storage unit 8B. Then, the display unit 10B displays the acquired data 16B on the display 20B using the screen data 17B.
  • Examples of display components included in the screen data 17B are a list table and a title display field used for screen display.
  • the display component included in the screen data 17B may include a graphical display of a screen component such as a switch, a lamp, a graph, or a meter.
  • the display data 17B sets a display component for displaying the type of alarm corresponding to the error content, the time when the error occurred, and the current state. Keep it. Thereby, the display unit 10B can display an image corresponding to the display component of the screen data 17B on the display 20B.
  • the fixed-cycle event generation unit 11B may generate the second fixed-cycle event at a fixed cycle.
  • the acquisition cooperation unit 9B sends an acquisition request for the acquisition data 16B to the acquisition cooperation unit 9A.
  • acquisition cooperation part 9B acquires acquisition data 16B from programmable display 1A in cooperation with acquisition cooperation part 9A.
  • the fixed-cycle event generation unit 11A may generate the first fixed-cycle event at a fixed cycle.
  • the acquisition cooperation unit 9A extracts the acquisition data 16B from the collected data 15A and sends it to the acquisition cooperation unit 9B.
  • the acquisition cooperation unit 9A sends the acquisition data 16B to the acquisition cooperation unit 9B in cooperation with the acquisition cooperation unit 9B.
  • the acquisition cooperation unit 9A is not limited to the case where the fixed-cycle event generation unit 11A generates the first fixed-cycle event, but the acquired data from the collected data 15A based on a change in a specific value in the internal memory 7A. 16B may be extracted and sent to the acquisition cooperation unit 9B.
  • the case where there is a change in the value in the internal memory 7A here is a case where the user performs a specific operation on the programmable display 1A, or a case where the programmable display 1A collects specific information from the PLC 4A.
  • the programmable display 1B may transmit the acquisition data 16B to the programmable display 1A after changing the acquisition data 16B.
  • the programmable display 1A corrects the collected data 15A based on the changed acquired data 16B, and thereby reflects the change in the acquired data 16B in the collected data 15A.
  • the programmable displays 1A and 1B can be operated as if the collected data 15A collected by the programmable display 1A is shared by the plurality of programmable displays 1A and 1B.
  • FIG. 4 is a flowchart illustrating a processing procedure when the programmable display according to the embodiment acquires a certain number of acquired data in the order of arrival.
  • the acquisition cooperation unit 9B extracts type information for identifying the type of the acquisition data 16B from within the second periodic event.
  • the acquisition cooperation unit 9B transmits a data acquisition request to the acquisition cooperation unit 9A via the communication unit 6B and the communication unit 6A.
  • the acquisition request for data transmitted by the acquisition cooperation unit 9B is an acquisition request for the acquisition data 16B, and includes the type information of the acquisition data 16B to be acquired.
  • the acquisition cooperation unit 9A specifies the type of the acquisition data 16B and the data format of the acquisition data 16B based on the type information of the acquisition data 16B.
  • the acquisition cooperation unit 9A transmits the specified data format to the programmable display 1B.
  • the data format represents what kind of value combination the requested acquisition data 16B is composed of.
  • the collected value for one point of data is a combination of an integer, a real number, or a character string value.
  • 1 A of programmable displays preset the data format of the log data to collect according to the instruction
  • the data format of the log data collected by the PLC 4A is variable depending on the setting. In other words, the collected values of the log data collected by the PLC 4A differ in combinations of integer, real number, or character string values for each setting.
  • the programmable display 1A transmits the data format of the acquisition data 16B to the programmable display 1B, thereby notifying the programmable display 1B of the data format of the value indicating the acquisition data 16B.
  • the acquisition cooperation part 9B of the programmable display 1B receives the data format of the acquisition data 16B.
  • the acquisition cooperation unit 9B calculates the size of the memory area necessary for storing the acquisition data 16B based on the data format received from the programmable display 1A.
  • the acquisition cooperation unit 9B secures a memory area for storing the acquisition data 16B based on the calculated size of the memory area.
  • the acquisition cooperation unit 9B secures a memory area having a size necessary for storing the acquisition data 16B in the internal memory 7B.
  • the acquisition cooperation unit 9B secures the memory area in the internal memory 7B by confirming that the memory area secured in advance has a free area of a certain area or more.
  • the acquisition cooperation unit 9B is not limited to the method of securing the memory area in the internal memory 7B, and may reserve the memory area in the storage unit 8B. In this case, the acquisition cooperation unit 9B checks whether or not the acquisition data 16B can be filed and stored in the storage unit 8B.
  • the programmable display device 1B is ready to receive the acquired data 16B by securing the memory area. Subsequently, in step S50, the acquisition cooperation unit 9B of the programmable display device 1B requests the programmable display device 1A for data for L cases counting from the latest data that is the latest, when L is a natural number. Specifically, the acquisition cooperation unit 9B transmits a collection request for collecting L pieces of data in the order of arrival to the programmable display device 1A.
  • the number of acquisition data 16B requested by the acquisition cooperation unit 9B is larger than the display number set for the display component used when the programmable display 1B displays the acquired acquisition data 16B on the display 20B. May be.
  • the acquisition cooperation part 9B can reduce the frequency
  • the acquisition cooperation unit 9B and the display unit 10B prepare for processing for scrolling and displaying the acquisition data 16B.
  • the acquisition cooperation unit 9A of the programmable display 1A receives the collection request from the acquisition cooperation unit 9B, the acquisition cooperation unit 9A extracts the requested L data from the latest data in the collection data 15A. Then, the acquisition cooperation unit 9A sets the extracted L pieces of data in the acquisition data 16B. Furthermore, in step S60, the acquisition cooperation unit 9A transmits the requested L pieces of data to the programmable display 1B by transmitting the acquisition data 16B to the acquisition cooperation unit 9B.
  • Step S70 acquisition cooperation part 9B of programmable display 1B receives acquisition data 16B which is data for L cases transmitted from acquisition cooperation part 9A. And the acquisition cooperation part 9B stores the acquisition data 16B in the memory area in the internal memory 7B secured by the process of step S40. Furthermore, the display unit 10B displays the acquired data 16B acquired from the programmable display 1A on the display 20B. Thereby, a part of data similar to the data collected by the programmable display 1A can be displayed to the user of the programmable display 1B.
  • the programmable display 1B can acquire the acquisition data 16B, which is the latest L data, from the programmable display 1A. Therefore, the programmable display 1B can acquire the acquisition data 16B from the programmable display 1A with a small communication amount. Moreover, the programmable display 1B can suppress the usage amount of the memory area when acquiring the acquisition data 16B from the programmable display 1A.
  • FIG. 5 is a flowchart illustrating a processing procedure when the programmable display according to the embodiment acquires specific acquisition data.
  • the description of the same processes as those described in FIG. 4 is omitted.
  • Programmable display 1B when acquiring arbitrary acquisition data 16B from within collection data 15A of programmable display 1A, executes the processes of steps S110 to S140, which are the same processes as steps S10 to S40.
  • step S110 when a data acquisition trigger occurs in the programmable display 1B, the acquisition cooperation unit 9B transmits a data acquisition request to the acquisition cooperation unit 9A in step S120.
  • Step S130 acquisition cooperation part 9A transmits a data format corresponding to a data acquisition request to programmable display 1B.
  • the acquisition cooperation part 9B calculates the magnitude
  • step S140 the acquisition cooperation unit 9B secures a memory area for storing the acquisition data 16B based on the calculated size of the memory area.
  • step S150 when the programmable display 1B is ready to receive the acquisition data 16B, in step S150, when the acquisition cooperation unit 9B sets M as a natural number, the identification information of M pieces of data is traced back from the latest data. Is requested to the programmable display 1A. Specifically, the acquisition cooperation unit 9B transmits a collection request for collecting M data retroactively from the latest data of the collection data 15A to the acquisition cooperation unit 9A.
  • the M pieces of data are second parts included in the collected data 15A, and the identification information of the M pieces of data is M pieces of first identification information.
  • the acquisition cooperation unit 9B may arbitrarily set the number of data requested in the collection request, but the number of data requested in the collection request is used to perform a calculation process that is an estimation process performed in the subsequent process. The number is sufficient.
  • the first identification information is information indicating a situation when each point of data is acquired. Accordingly, the first identification information here is information indicating a situation when the PLC 4A acquires data corresponding to M pieces of data. An example of the first identification information is information that can identify the time when the data was collected. Further, the identification information may be information on the order of data indicating the number of points of the entire data, or the name of the data.
  • the acquisition cooperation part 9A of the programmable display 1A receives the collection request for requesting the identification information from the acquisition cooperation part 9B, the acquisition cooperation part 9A goes back from the latest data in the collection data 15A, and the M pieces of requested M data Extract identification information. And acquisition cooperation part 9A transmits the discernment information on the requested data to programmable indicator 1B in Step S160. That is, the acquisition cooperation unit 9A transmits the extracted M pieces of identification information to the programmable display 1B.
  • the acquisition cooperation unit 9B of the programmable display 1B receives M pieces of identification information from the acquisition cooperation unit 9A. And the acquisition cooperation part 9B stores M pieces of identification information in the memory area secured by the process of step S140, which is the same process as step S40. Subsequently, in step S170, the acquisition cooperation unit 9B obtains the position in the entire data of the data to be acquired based on the M pieces of identification information. In other words, the acquisition cooperation unit 9B estimates, based on the acquired M pieces of identification information, how far back the latest data should be requested in order to request data to be acquired. .
  • the acquisition cooperation unit 9B calculates an average time of acquisition time intervals when 10 pieces of data are acquired. Then, the acquisition cooperation unit 9B calculates, based on the calculated average time, how many more data should be traced back in order to reach the acquisition time of the data that is originally intended to be acquired.
  • the acquisition cooperation unit 9B requests the programmable display device 1A for identification information of the data at the estimated position. Specifically, the acquisition cooperation unit 9B transmits a collection request for collecting identification information of data at the estimated position to the programmable display 1A.
  • the data of the position estimated by the acquisition cooperation unit 9B is the third part data included in the collected data 15A, and the identification information of the data of the position estimated by the acquisition cooperation unit 9B is the second identification information.
  • the second identification information here is information indicating a situation when the PLC 4A acquires data corresponding to the acquired data.
  • the acquisition cooperation unit 9B may transmit a collection request for requesting a plurality of pieces of identification information to the programmable display 1A.
  • This collection request for a plurality of cases requests identification information for identifying data at the estimated position and identification information for data before and after the estimated position.
  • the acquisition cooperation unit 9A of the programmable display 1A When the acquisition cooperation unit 9A of the programmable display 1A receives a collection request for requesting identification information from the acquisition cooperation unit 9B, the acquisition cooperation unit 9A goes back from the latest data in the collection data 15A and receives a plurality of data from the position specified in the collection request. Is identified. Then, the acquisition cooperation unit 9A extracts identification information corresponding to the specified data. Further, in step S190, the acquisition cooperation unit 9A transmits the requested data identification information to the programmable display 1B. That is, 9 A of acquisition cooperation parts transmit the extracted identification information to the programmable display 1B.
  • the acquisition cooperation unit 9B of the programmable display 1B receives the identification information from the acquisition cooperation unit 9A. And the acquisition cooperation part 9B stores identification information in the memory area secured by the process of step S140. Subsequently, in step S200, the acquisition cooperation unit 9B determines, based on the acquired identification information, whether the received identification information is identification information of data for which acquisition is requested. At this time, the acquisition cooperation unit 9B determines whether or not the received identification information includes the identification information of the data originally desired to be acquired. Specifically, the acquisition cooperation unit 9B determines whether or not the data acquisition time indicated by the received identification information includes the acquisition time of the data to be acquired. If the data acquisition time indicated by the received identification information includes the acquisition time of the data to be acquired, the data corresponding to the acquired identification information is the data to be acquired.
  • the acquisition cooperation units 9A and 9B return to the processing in step S170 and execute the processing from step S170 to S200. To do. And acquisition cooperation part 9A, 9B repeats the process from step S170 to S200 until the received identification information turns into the identification information of the data which requests
  • the acquisition cooperation units 9A and 9B return to the processing in step S170 and perform the processing from step S170 to S200. May be executed.
  • the acquisition cooperation unit 9B displays the data corresponding to the received identification information in the programmable display in step S210.
  • Request to 1A the acquisition cooperation unit 9B requests the programmable display device 1A for data from the position of the data indicated by the identification information to the number of display items set in the display component used when displaying on the display 20B.
  • the data requested by the acquisition cooperation unit 9B to the programmable display 1A includes the data body collected by the programmable display 1A in addition to the identification information.
  • the acquisition cooperation unit 9A When the acquisition cooperation unit 9A receives the collection request from the acquisition cooperation unit 9B, the acquisition cooperation unit 9A goes back from the latest data in the collection data 15A and specifies the number of data requested from the position specified in the collection request. And acquisition cooperation part 9A extracts the specified data, and transmits the requested data to programmable display 1B in Step S220. That is, the acquisition cooperation unit 9A transmits the extracted data to the programmable display 1B.
  • Step S230 acquisition cooperation part 9B of programmable display 1B receives acquisition data 16B which is data transmitted from acquisition cooperation part 9A. And the acquisition cooperation part 9B stores the acquisition data 16B in the memory area in the internal memory 7B secured by the process of step S140. Furthermore, the display unit 10B displays the acquired data 16B acquired from the programmable display 1A on the display 20B. Thereby, a part of data similar to the data collected by the programmable display 1A can be displayed to the user of the programmable display 1B.
  • the programmable display 1B can acquire the acquisition data 16B regardless of the setting of the screen data 17B. .
  • the M pieces of identification information requested by the acquisition cooperation unit 9B to the acquisition cooperation unit 9A in the process of step S150 are not limited to the identification information of the latest M pieces of data.
  • the acquisition cooperation unit 9B may request M pieces of identification information corresponding to any M pieces of data from the acquisition cooperation unit 9A in the process of step S150.
  • programmable display 1B when programmable display 1A, 1B performs the process demonstrated in FIG. 5, programmable display 1B requests
  • programmable display 1B can acquire acquisition data 16B which is specific data, without acquiring the whole collection data 15A collected by programmable display 1A. Therefore, the programmable display 1B can acquire the acquisition data 16B from the programmable display 1A with a small communication amount.
  • the programmable display 1B can suppress the usage amount of the memory area when acquiring the acquisition data 16B from the programmable display 1A.
  • the programmable display 1B determines whether or not the programmable display 1A has room to continue communication when executing the communication process described with reference to FIGS. 4 and 5 with the programmable display 1A. May be.
  • the acquisition cooperation unit 9B receives third identification information from the third external device.
  • the third identification information is information indicating a situation when each point of data is acquired, similarly to the first identification information.
  • the 3rd identification information here is information which shows the condition at the time of PLC4B acquiring the data corresponding to acquisition data.
  • FIG. 6 is a flowchart illustrating a processing procedure of transmission / reception continuation determination processing according to the embodiment.
  • the programmable display 1B performs the transmission determination process which determines whether the programmable display 1A can continue transmission of the acquisition data 16B is demonstrated. That is, the transmission judgment process here is executed by the programmable display 1B.
  • the programmable display 1B executes a transmission determination process while the processes of steps S150 to S170 in FIG. 5 are performed.
  • the programmable display 1B may execute the transmission determination process at any timing when data communication is performed with the programmable display 1A.
  • the programmable display device 1B may execute the transmission determination process at any timing among the processes described in FIG. 4 or FIG.
  • step S350 When the programmable display 1B is ready to receive the acquisition data 16B, the acquisition cooperation unit 9B requests the identification information of M pieces of data from the latest data to the programmable display 1A in step S350.
  • the process of step S350 here is the same process as the process of step S150 of FIG.
  • the acquisition cooperation unit 9A of the programmable display 1A When the acquisition cooperation unit 9A of the programmable display 1A receives a collection request for requesting identification information from the acquisition cooperation unit 9B, the acquisition cooperation unit 9A extracts the requested M pieces of identification information from the data in the collection data 15A in the order of arrival. .
  • This extraction process is the same as the identification information extraction process in step S160 of FIG. Since the programmable display 1A here performs the transmission determination process, the acquisition cooperation unit 9A adds load information to be described later indicating the load status of the programmable display 1A in addition to the requested M pieces of identification information. calculate. Note that components other than the acquisition cooperation unit 9A may calculate the load information.
  • the acquisition cooperation unit 9A After obtaining the load information indicating the load status of the programmable display 1A, the acquisition cooperation unit 9A obtains M pieces of identification information, which is identification information of the requested data, and the load information in step S360. Send to 1B.
  • the load information that the programmable display 1A transmits to the programmable display 1B is the first load information.
  • the load information transmitted from the programmable display 1A to the programmable display 1B may be information indicating whether communication is possible or communication is not possible, or a CPU (Central Processing Unit) may be information indicating the occupation rate. Further, the load information may be information indicating the current communication volume.
  • a CPU Central Processing Unit
  • the acquisition cooperation unit 9B of the programmable display 1B receives the identification information and the load information transmitted by the programmable display 1A and stores them in the internal memory 7B. Subsequently, in step S370, the acquisition cooperation unit 9B determines whether or not the programmable display device 1A can continue communication based on the load information acquired from the acquisition cooperation unit 9A.
  • the acquisition cooperation unit 9B determines whether the programmable display 1A can continue communication according to the received information. To do.
  • the acquisition display unit 9B is programmable according to whether or not the first load information exceeds the first threshold value. It is determined whether the device 1A can continue communication. Specifically, when the acquisition cooperation unit 9B receives information indicating the CPU occupancy rate from the acquisition cooperation unit 9A, the programmable display device 1A performs communication depending on whether the CPU occupancy rate exceeds the threshold value of the CPU occupancy rate. Determine if you can continue. Moreover, when the acquisition cooperation part 9B receives the information which shows communication amount from the acquisition cooperation part 9A, whether the programmable display 1A can continue communication by whether the communication amount exceeds the threshold value of communication amount or not. judge.
  • step S380 the acquisition cooperation unit 9B waits for a certain period of time. Thereafter, the acquisition cooperation units 9A and 9B return to the process of step S350 and execute the processes from step S350 to S380. And acquisition cooperation part 9A, 9B repeats the process from step S350 to S380 until it judges that communication can be continued.
  • step S380 the acquisition cooperation unit 9B continues the data acquisition process in step S390. In this case, the acquisition cooperation unit 9B continues the process of acquiring the acquisition data 16B from the programmable display 1A.
  • the acquisition cooperation unit 9B has a communication timeout. And the data acquisition process is interrupted. Note that the first specified time set by the user is set at the same time when the data acquisition process is set in the screen data 17B by the user.
  • programmable display 1B when programmable display 1A, 1B performs the process demonstrated in FIG. 6, programmable display 1B is programmable display based on the load information of programmable display 1A at the stage of the acquisition preparation of data. It is possible to determine whether or not to continue communication with 1A. Therefore, the programmable display 1B can acquire the acquisition data 16B from the programmable display 1A at a timing when the load on the programmable display 1A is small.
  • FIG. 7 is a flowchart illustrating a processing procedure of periodic data acquisition processing according to the embodiment.
  • the programmable display 1A performs the transmission process which transmits the acquisition data 16B to the programmable display 1B with the periodic timing designated from the programmable display 1B is demonstrated.
  • step S420 the acquisition cooperation unit 9B of the programmable display device 1B requests the acquisition cooperation unit 9A of the programmable display device 1A to periodically transmit data. Specifically, the acquisition cooperation unit 9B sends a transmission request, which is a request for periodically transmitting the acquisition data 16B, to the acquisition cooperation unit 9A.
  • a periodic data transmission request is referred to as a periodic transmission request.
  • the periodic transmission request includes information specifying the type of data, the position of the data, the number of data, and the data transmission cycle included in the acquired data 16B.
  • the acquisition cooperation unit 9B may transmit the periodic transmission request to the acquisition cooperation unit 9A at any timing.
  • the acquisition cooperation unit 9B executes the process of step S420 at the same timing as step S120 of FIG. 5 will be described. That is, the acquisition cooperation part 9B here transmits a periodic transmission request to the programmable display 1A simultaneously with the data acquisition request.
  • the acquisition cooperation unit 9A of the programmable display 1A receives the periodic transmission request from the acquisition cooperation unit 9B. Thereafter, the acquisition cooperation unit 9A does not wait for the data acquisition request from the acquisition cooperation unit 9B, and sends the acquisition data 16B to the acquisition cooperation unit 9B for each transmission cycle set in the periodic transmission request.
  • the acquisition cooperation unit 9A of the programmable display 1A transmits a data transmission advance notice to the acquisition cooperation unit 9B of the programmable display 1B in step S430. .
  • the acquisition cooperation unit 9B receives the data transmission advance notice. And acquisition cooperation part 9B transmits the load information of programmable display 1B to acquisition cooperation part 9A in Step S440.
  • the load information transmitted from the programmable display 1B to the programmable display 1A may be information indicating whether communication is possible or not, and the CPU occupation of processing generated by the current communication Information indicating the rate may be used. Further, the load information may be information indicating the current communication volume.
  • the acquisition cooperation unit 9A receives the second load information which is the load information of the programmable display 1B.
  • the acquisition cooperation unit 9A determines whether data communication with the programmable display device 1B can be continued based on the received load information.
  • the acquisition cooperation unit 9A receives information indicating whether communication is possible or not from the acquisition cooperation unit 9B, the acquisition cooperation unit 9A determines whether the programmable display 1B can continue communication according to the received information. To do.
  • the acquisition display unit 9A can display the programmable information depending on whether the second load information exceeds the second threshold value. It is determined whether the device 1B can continue communication. Specifically, when the acquisition cooperation unit 9A receives information indicating the CPU occupancy rate from the acquisition cooperation unit 9B, the programmable display 1B communicates depending on whether the CPU occupancy rate exceeds the threshold value of the CPU occupancy rate. Determine if you can continue. Moreover, when the acquisition cooperation part 9A receives the information which shows communication amount from the acquisition cooperation part 9B, whether the programmable display 1B can continue communication by whether the communication amount exceeds the threshold value of communication amount or not. judge.
  • step S460 the acquisition cooperation unit 9A waits for a certain period of time. Thereafter, the acquisition cooperation units 9A and 9B return to the process of step S430 and execute the processes from step S430 to S460. And acquisition cooperation part 9A, 9B repeats the process from step S430 to S460 until it judges that communication can be continued.
  • step S460 the acquisition cooperation unit 9A transmits data in step S470, and in step S480, the acquisition cooperation unit 9B acquires data.
  • the acquisition cooperation unit 9A transmits the acquisition data 16B to the programmable display 1B.
  • the acquisition cooperation unit 9A here transmits the information specified in the periodic transmission request transmitted from the acquisition cooperation unit 9B in the process of step S420 to the acquisition cooperation unit 9B.
  • the acquisition cooperation unit 9A sends the acquisition data 16B of the type, position, or number specified in the periodic transmission request to the acquisition cooperation unit 9B.
  • 9 A of acquisition cooperation parts may send the data of the conditions designated by the acquisition request of the data transmitted by step S420 to the acquisition cooperation part 9B.
  • the acquisition data 16B sent from the acquisition cooperation unit 9A to the acquisition cooperation unit 9B includes identification information and data collected from the PLC 4B.
  • the acquisition cooperation unit 9A may transmit data when the fixed-cycle event generation unit 11A generates a second fixed-cycle event.
  • the acquisition cooperation unit 9A may transmit the acquisition data 16B to the acquisition cooperation unit 9B at the timing when the data acquisition trigger occurs in the programmable display 1A.
  • step S430 the acquisition cooperation unit 9A may repeat the process of retransmitting a data transmission advance notice to the acquisition cooperation unit 9B.
  • the acquisition cooperation unit 9A determines that a communication timeout has occurred, and the data acquisition process Interrupt.
  • the second specified time set by the user is set at the same time when the user sets the data acquisition process for the screen data 17B.
  • the programmable display 1B may omit transmission of load information to the programmable display 1A.
  • the programmable display 1A transmits the acquisition data 16B to the programmable display 1B based on the periodic transmission request regardless of the load information.
  • the programmable display 1B may request acquisition data that is a part of the collected data 15B from a third external device such as the programmable display 1A or another display.
  • the acquisition cooperation unit 9B determines whether or not communication with the third external device can be continued based on the second load information of the third external device received from the third external device. To do.
  • the acquisition cooperation unit 9B receives the second load information indicating the CPU occupancy rate or the communication amount from the third external device, the acquisition cooperation unit 9B determines whether the second load information exceeds the second threshold. Determine whether the external device can continue communication.
  • the third external device determines whether the CPU occupancy rate exceeds the CPU occupancy threshold value or not. It is determined whether or not communication can be continued. In addition, when the acquisition cooperation unit 9B receives information indicating the communication amount from the third external device, whether or not the third external device can continue communication depending on whether or not the communication amount exceeds the threshold of the communication amount. Determine whether.
  • the programmable display 1B does not need to transmit a data transmission request each time data is acquired. Then, the programmable display 1A can determine whether to continue communication with the programmable display 1B based on the load information of the programmable display 1B. Therefore, the programmable display 1B can acquire the acquisition data 16B from the programmable display 1A at a timing when the load on the programmable display 1B is small.
  • FIG. 8 is a diagram for explaining the screen data setting process according to the embodiment.
  • FIG. 8 illustrates an example of the setting screen 50 displayed by the display unit 10B when setting values necessary for processing executed by the programmable display device 1B are set in the screen data 17B.
  • the display unit 10B displays the setting screen 50 using a screen data creation program.
  • the screen data creation program is linked to the acquisition cooperation unit 9B, and information set by the screen data creation program is set in the acquisition cooperation unit 9B. Thereby, the acquisition cooperation part 9B acquires the acquisition data 16B based on the information set by the screen data creation program.
  • the programmable display device 1B displays, on the setting screen 50, a first setting area 51 for setting information of a display device to be connected and a second setting area 52 for setting the content of data to be acquired. To do.
  • the display device of the connection destination set in the first setting area 51 is a display device to be connected to the programmable display device 1B, and a display device to which the acquired data 16B is to be transmitted.
  • the display device connected to is the programmable display device 1A.
  • the first setting area 51 has a column in which the display device of the connection destination can be designated with a fixed value, and a column in which the display device of the connection destination can be designated by selecting a device. .
  • the screen data creation program displays the labels “Fixed Value”, “Device”, “Direct Input”, “Select by ID from Correspondence Table”, and “Acquire Correspondence Table from Server” in the first setting area 51.
  • the “fixed value” label displayed in the first setting area 51 is a label for designating a fixed value
  • the “device” label is a label for designating a device.
  • the “direct input” label is a label for the user to directly input an IP (Internet Protocol) address.
  • the screen data creation program selects “direct input” and accepts the fixed value of the display device of the connection destination from the user.
  • the fixed value is information unique to the display.
  • An example of a fixed value input by the user is an IP address.
  • the screen data creation program sets the display corresponding to the fixed value received from the user as the connection destination display.
  • the screen data creation program calculates the IP address from the value of the internal memory 7B of the programmable display 1B or the value of the internal memory of the device connected to the programmable display 1B. read out.
  • the screen data creation program reads the IP address from the value of the internal memory 7B when “device” is selected by the user will be described.
  • the screen data creation program receives a fixed value of the display device to be connected from the user and sets it in the internal memory 7B. Then, the screen data creation program refers to the internal memory 7B, and sets the display corresponding to the fixed value set in the device as the connection destination display.
  • the screen data creation program creates a correspondence table in which the IP address and the ID are associated with each other and displays the correspondence table on the setting screen 50. Accepts an ID specified by the user. Then, the screen data creation program sets the display device with the IP address corresponding to the ID designated by the user as the connection destination display device.
  • the screen data creation program downloads the correspondence table from the server connected to the programmable display 1B and displays it on the setting screen 50.
  • the ID specified by the user is accepted.
  • the screen data creation program sets the display device with the IP address corresponding to the ID designated by the user as the connection destination display device.
  • the programmable display 1B designates the connection-destination display with the IP address unique to the display, so that the connection-destination display can be changed without changing the screen data 17B.
  • the screen data creation program displays “ID”, “number of display points”, “display start position”, and “communication timeout” in the second setting area 52.
  • the label “ID” is a label for designating the ID of data to be acquired
  • the label “number of display points” is a label for designating the number of data when displaying the acquired data.
  • the label “display start position” is a label for designating information of data to be displayed at the head.
  • the information on the data to be displayed at the head may be information indicating the order number of the whole data of the data to be displayed at the head, or information indicating at which time the data is collected. May be.
  • the label “communication timeout” is a label for the acquisition cooperation unit 9B to specify the first specified time as a reference for determining whether or not to determine communication timeout.
  • the screen data creation program receives an ID, which is identification information of the data to be acquired, from the user. Then, the screen data creation program sets the data corresponding to the ID specified by the user in the acquisition data 16B that is the acquisition target data.
  • the screen data creation program is connected to the value of the internal memory 7B of the programmable display 1B or the programmable display 1B. Read from the value in the internal memory of the device.
  • the screen data creation program reads the ID from the value of the internal memory 7B when “device” is selected by the user will be described.
  • the screen data creation program accepts the input numerical value. Then, the screen data creation program sets the numerical value input by the user as the data display score.
  • the screen data creation program receives the data display start position from the user. Then, the screen data creation program sets data corresponding to the display start position designated by the user as the top data of the display.
  • the screen data creation program When “device” is selected by the user at the position of “display start position”, the screen data creation program displays the display start position, the value in the internal memory 7B of the programmable display 1B, or the programmable display 1B. Read from the value in the internal memory of the device connected to.
  • the screen data creation program reads the display start position from the value of the internal memory 7B when “device” is selected by the user will be described.
  • the screen data creation program When the user inputs a numerical value at the location labeled “Communication timeout”, the screen data creation program accepts the input numerical value. Then, the screen data creation program sets the numerical value input by the user as the first specified time for communication timeout. Note that the type of data to be acquired, such as alarm or log data, is automatically determined by selecting a screen component, and therefore does not need to be explicitly set by the user.
  • the hardware configuration of the programmable displays 1A and 1B will be described. Since the programmable displays 1A and 1B have the same hardware configuration, the hardware configuration of the programmable display 1A will be described here.
  • FIG. 9 is a diagram illustrating a hardware configuration example of the programmable display according to the embodiment.
  • the programmable display 1 ⁇ / b> A can be realized by the control circuit 300 shown in FIG. 10, that is, the processor 301 and the memory 302.
  • the processor 301 is a CPU (Central Processing Unit, central processing unit, processing unit, arithmetic unit, microprocessor, microcomputer, processor, DSP), system LSI (Large Scale Integration), or the like.
  • the memory 302 is nonvolatile or volatile, such as RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable Read Only Memory), EEPROM (registered trademark) (Electrically Erasable Programmable Read Only Memory).
  • Semiconductor memory magnetic disk, flexible disk, optical disk, compact disk, mini disk or DVD (Digital Versatile Disc).
  • the programmable display 1A is realized by the processor 301 reading and executing a program stored in the memory 302 for operating as the programmable display 1A. This program can also be said to cause a computer to execute the procedure or method of the programmable display 1A.
  • the memory 302 is also used as a temporary memory when the processor 301 executes various processes.
  • the program executed by the processor 301 is a computer program product having a computer-readable and non-transitory recording medium including a plurality of instructions for performing data processing, which can be executed by a computer. is there.
  • the program executed by the processor 301 causes the computer to execute data processing by a plurality of instructions.
  • the programmable display 1A may be realized by dedicated hardware.
  • the programmable displays 1A and 1B may have various functions. Specifically, the programmable displays 1A and 1B indicate that when an abnormality occurs in the devices controlled by the PLCs 4A and 4B, the programmable displays 1A and 1B refer to the values in the internal memory in the PLCs 4A and 4B, and alarms are generated. A function of displaying may be provided. The programmable displays 1A and 1B may have a function of saving an alarm history in a file. Moreover, programmable display 1A, 1B may be provided with the function which collects the value of the internal memory of PLC4A, 4B according to the rising or falling of the trigger set arbitrarily. The programmable displays 1A and 1B may have a function of displaying collected data in a graph on a screen or a function of saving collected data in a file.
  • the programmable display 1B sets the above-described functions in accordance with instructions from the user when the screen data 17B is created.
  • the programmable display 1B sets a part on the screen for displaying the collected value in the screen data 17B in accordance with an instruction from the user.
  • An example of a part on the screen is a display part or a graph for displaying an alarm.
  • the PLCs 4A and 4B store values indicating the occurrence of alarms in the internal memories of the PLCs 4A and 4B.
  • programmable display 1A, 1B which monitors PLC4A, 4B displays the generation
  • a specific device when a specific device generates an abnormality, the specific device stops, and when the abnormality spreads to another device, the other device is affected.
  • the display system 100 according to the embodiment is provided with programmable displays 1A and 1B in order to confirm the occurrence of abnormality from a remote position.
  • the PLC 4A may be connected to a device that performs a process on the rear stage side of the line
  • the PLC 4B may be connected to a device that performs a process on the front stage side of the line.
  • the programmable display 1A may collect the transition of the production number using a logging function and display it on a graph.
  • the programmable display 1B collects and displays data on the transition of the production number from the programmable display 1A on the rear stage side.
  • the display system 100 can adjust the work order of the process of the front
  • the first display device acquires a file included in the second display device.
  • the first display device it is necessary for the first display device to acquire the entire series of collected data stored in the file.
  • the data size of a file storing alarm data or log data may be several tens or hundreds of times the size of data displayed on the screen using parts on the screen such as alarm display. For this reason, it is necessary for the first display device to acquire data having a data size larger than the requested data, which requires extra communication and an excessive memory capacity.
  • a third display unit acquires and displays a copy of the screen displayed on the fourth display unit.
  • the third display device since it is necessary for the third display device to acquire data of all pixels of the screen, extra communication is required and an excessive memory capacity is required.
  • the third display unit displays and copies the screen displayed by the fourth display unit, the operation of the third display unit cannot be changed based on the acquired data.
  • a fifth display device acquires and displays the value of the internal memory of the sixth display device.
  • the position of the internal memory referred to by the fifth display differs depending on the screen data of the sixth display.
  • the control device connected to the sixth display device is changed, the screen data of the sixth display device may be changed.
  • the fifth display device needs to rewrite the screen data of the fifth display device in accordance with the screen data of the sixth display device. This rewriting work needs to be executed after the fifth display is stopped, and since it is necessary to bring a PC to the production system site, the work is increased.
  • the seventh indicator performs the same settings as those of the eighth indicator that collects data, and the seventh indicator and the eighth indicator Some of them collect data individually.
  • the seventh display unit and the eighth display unit manage the setting twice, and an error in changing the setting is likely to occur.
  • the data acquisition device that acquires the acquisition data 16B from another device is the programmable display 1B
  • the data acquisition device may be a PC or a database.
  • the programmable display 1B obtains the position of the acquisition data 16B in the collection data 15A based on the identification information of the M pieces of data included in the collection data 15A. Acquisition data 16B corresponding to the position is acquired from the programmable display 1A. Thereby, since the programmable display 1B can acquire the acquisition data 16B which is a part of the collected data 15A collected by the programmable display 1A, the data can be acquired with a small communication amount and a small memory capacity. Can do. Therefore, the programmable display 1B can efficiently acquire the data collected by the programmable display 1A.
  • the programmable display 1B acquires the acquired data 16B after suppressing the communication amount and the amount of memory to be used even if the total data size of the collected data 15A collected by the programmable display 1A is large. be able to. Moreover, since the programmable display 1B performs the acquisition process of the acquisition data 16B at a timing when there is a margin in the processing of the programmable displays 1A and 1B, while suppressing the inhibition of the process that the programmable displays 1A and 1B are executing, The acquisition data 16B can be acquired.
  • the programmable display 1B collects the collected data 15A collected by the programmable display 1A regardless of what control device the programmable display 1A is connected to. For this reason, even if it is a case where the structure or screen data of 1 A of programmable displays are changed, the programmable display 1B can acquire the acquisition data 16B, without changing the screen data 17B of the programmable display 1B. Therefore, even when the control device connected to the programmable display 1A is changed, it is possible to omit the process of bringing the PC to the production line site and changing the screen data 17B, thereby improving work efficiency. Can be made.
  • the configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.
  • 1A, 1B programmable display 5A, 5B data collection unit, 7A, 7B internal memory, 9A, 9B acquisition linkage unit, 11A, 11B fixed-cycle event generation unit, 15A, 15B collection data, 16B acquisition data, 17B screen data, 100 display system.

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  • Programmable Controllers (AREA)

Abstract

La présente invention concerne un dispositif d'affichage programmable (1B) qui est pourvu d'une unité de coordination d'acquisition (9B) qui acquiert des données (16B) à acquérir, qui sont une première partie de données collectées (15A) collectées par un dispositif d'affichage programmable (1A), l'unité de coordination d'acquisition (9B) déterminant la position des données (16B) à acquérir dans les données collectées (15A) sur la base de premières informations d'identification indiquant une condition dans laquelle une seconde partie des données collectées (15A) a été collectée, et demandant et acquérant les données (16B) à acquérir à partir du dispositif d'affichage programmable (1A) en indiquant la position déterminée des données (16B) à acquérir.
PCT/JP2017/019073 2017-05-22 2017-05-22 Dispositif d'affichage programmable et procédé d'acquisition de données WO2018216082A1 (fr)

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CN201780077290.1A CN110100208B (zh) 2017-05-22 2017-05-22 可编程显示器及数据取得方法
JP2017560355A JP6400232B1 (ja) 2017-05-22 2017-05-22 プログラマブル表示器およびデータ取得方法
PCT/JP2017/019073 WO2018216082A1 (fr) 2017-05-22 2017-05-22 Dispositif d'affichage programmable et procédé d'acquisition de données

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WO2013084321A1 (fr) * 2011-12-07 2013-06-13 三菱電機株式会社 Dispositif d'édition des données d'écran pour dispositif d'affichage programmable
JP2015026347A (ja) * 2013-07-29 2015-02-05 株式会社デジタル 画像作成システム

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JP5053316B2 (ja) * 2009-03-12 2012-10-17 発紘電機株式会社 ネットワークシステム、プログラマブル表示装置およびメモリアクセス方法
WO2011089688A1 (fr) * 2010-01-20 2011-07-28 三菱電機株式会社 Système de dispositif de contrôle programmable et système de développement
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JP2010102536A (ja) * 2008-10-24 2010-05-06 Win System:Kk 表示器の内部メモリ利用方法
WO2013084321A1 (fr) * 2011-12-07 2013-06-13 三菱電機株式会社 Dispositif d'édition des données d'écran pour dispositif d'affichage programmable
JP2015026347A (ja) * 2013-07-29 2015-02-05 株式会社デジタル 画像作成システム

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JPWO2018216082A1 (ja) 2019-06-27
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CN110100208A (zh) 2019-08-06

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