WO2021210185A1 - Logging data display program, logging data display device, and logging data display method - Google Patents

Logging data display program, logging data display device, and logging data display method Download PDF

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Publication number
WO2021210185A1
WO2021210185A1 PCT/JP2020/016978 JP2020016978W WO2021210185A1 WO 2021210185 A1 WO2021210185 A1 WO 2021210185A1 JP 2020016978 W JP2020016978 W JP 2020016978W WO 2021210185 A1 WO2021210185 A1 WO 2021210185A1
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data
display
logging data
logging
change
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PCT/JP2020/016978
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French (fr)
Japanese (ja)
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森田　浩司
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三菱電機株式会社
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Priority to PCT/JP2020/016978 priority Critical patent/WO2021210185A1/en
Priority to JP2020552423A priority patent/JP6869443B1/en
Priority to CN202080099832.7A priority patent/CN115398366A/en
Publication of WO2021210185A1 publication Critical patent/WO2021210185A1/en

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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
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring

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  • This disclosure relates to a logging data display program, a logging data display device, and a logging data display method that realize a logging data display device that displays logging data output from various devices installed at a production site in a factory.
  • control device such as a programmable logic controller.
  • the control device has a function of repeatedly collecting data related to the operation of each device and storing it as logging data so that maintenance work of the device to be controlled can be performed efficiently.
  • Patent Document 1 in a control system that monitors and controls a controlled system such as a plant, data of a plurality of channels such as control signals and control data output from a plurality of points of the plant are periodically collected and collected. A technique for analyzing data for each channel and displaying a trend graph for each channel is described.
  • the types of data collected as logging data also increase, and the number may be tens to hundreds or more. ..
  • the data that needs to be confirmed in the maintenance work is a part of a large number of types of data constituting the logging data. That is, in the maintenance work, among the many types of data included in the logging data, the data acquired from some of the devices near the abnormal occurrence location is the target of confirmation.
  • the worker had to search for the data to be confirmed from all the data included in the logging data and the workload was heavy.
  • the present disclosure has been made in view of the above, and an object of the present disclosure is to obtain a logging data display program that realizes a logging data display device capable of reducing the work load of checking logging data.
  • the logging data display program analyzes logging data composed of multiple types of time-series data created by a control device that controls various devices at the production site.
  • a data analysis step that calculates the degree of change in the value for each time-series data
  • a display control step that selects a part of the time-series data based on the degree of change in the value for each time-series data and displays it on the display unit. Let the computer run.
  • the logging data display program according to the present disclosure has the effect of being able to realize a logging data display device that can reduce the work load of checking the logging data.
  • the figure which shows the configuration example of the logging data display device which concerns on embodiment Flow chart showing an example of the operation of the logging data display device to display logging data
  • the figure which shows an example of the graph display screen which the logging data display device displays on the display part A flowchart showing an example of an operation of accepting a change operation of a data item displayed in a graph by a logging data display device.
  • FIG. 1 is a diagram showing a data collection system including a logging data display device according to an embodiment.
  • the data collection system includes a logging data display device 1 and a control device 2 installed at a production site that controls each device at the production site and collects control data from each device.
  • the control device 2 periodically collects control data from each device to be controlled, aggregates the collected control data, and creates logging data 3. That is, when the control device 2 collects the control data from each device, the control device 2 adds the collected control data to the logging data 3 and updates the logging data 3.
  • the control device 2 outputs the logging data 3 when requested by the logging data display device 1.
  • the control data collected by the control device 2 is, for example, sensing data output by various sensors such as a current sensor, a voltage sensor, and a temperature sensor included in each device.
  • the logging data display device 1 requests the logging data 3 from the control device 2 and acquires the logging data 3. Further, the logging data display device 1 analyzes the logging data acquired from the control device 2, and selects and displays the control data having a large change in value from the various control data constituting the logging data 3. The logging data display device 1 requests the control device 2 for the logging data 3 when, for example, the user receives an operation instructing the start of displaying the logging data.
  • the logging data 3 output by the control device 2 is control data of a plurality of items (item 1, item 2, item 3, ...) Collected from each device by the control device 2, that is, a plurality of types. It includes control data and information on the date and time when each control data was collected.
  • the control data included in the logging data 3 is simply referred to as "data”.
  • the logging data display device 1 is realized by, for example, a personal computer. That is, the personal computer operates as the logging data display device 1 by installing the logging data display program, which is application software for displaying logging data, on the personal computer and executing the logging data display program.
  • FIG. 2 shows a configuration example of the logging data display device 1 when the logging data display device 1 is realized by a personal computer.
  • FIG. 2 is a diagram showing a configuration example of the logging data display device 1 according to the embodiment.
  • the logging data display device 1 includes a data acquisition unit 11, a data analysis unit 12, a display control unit 13, an operation reception unit 14, and a memory 102 realized by the CPU (Central Processing Unit) 101 executing a logging data display program.
  • the data holding unit 21 realized by the above and the display unit 31 realized by the display device 103 are provided.
  • the logging data display program is supplied to the user in a state of being written on a storage medium such as a CD (Compact Disc) -ROM or a DVD (Digital Versatile Disc) -ROM, and is installed in the memory 102.
  • the logging data display program may be supplied to the user via the Internet or the like.
  • the memory 102 is a non-volatile or volatile semiconductor memory such as RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable ROM), EEPROM (registered trademark) (Electrically EPROM). Magnetic disks, flexible disks, optical disks, compact disks, mini disks, DVDs, and the like.
  • the display device 103 is an LCD (Liquid Crystal Display) or the like.
  • the logging data display device 1 includes an input device 104.
  • the input device 104 is a mouse, a keyboard, or the like, and is used when the user operates the logging data display device 1.
  • the data acquisition unit 11 acquires the logging data 3 created by the control device 2 at the production site.
  • the logging data 3 is passed to, for example, the control device 2 and the logging data display device 1 via a detachable external memory.
  • the data acquisition unit 11 reads the logging data 3 from the external memory.
  • the data acquisition unit 11 may receive the logging data 3 from the control device 2 by using file transfer according to FTP (File Transfer Protocol) via a wired or wireless communication line.
  • FTP File Transfer Protocol
  • the data analysis unit 12 analyzes the logging data 3 and calculates the degree of change in the value for each data constituting the logging data 3.
  • the display control unit 13 generates screen data displayed by the display unit 31 and outputs the data to the display unit 31.
  • the operation receiving unit 14 receives an operation on the logging data display device 1 by the user.
  • the data holding unit 21 holds the logging data 3 acquired by the data acquisition unit 11.
  • the display unit 31 displays various screens based on screen data which is screen data generated by the display control unit 13.
  • the screen displayed by the display unit 31 includes a display screen of the logging data 3.
  • FIG. 3 is a flowchart showing an example of an operation in which the logging data display device 1 displays logging data.
  • the data acquisition unit 11 acquires the logging data 3 created by the control device 2 (step S11).
  • the logging data 3 acquired by the data acquisition unit 11 is held by the data holding unit 21.
  • the data analysis unit 12 counts the number N of data items included in the logging data 3 (step S12).
  • step S14 which is executed first after starting the operation of displaying the logging data 3, the data analysis unit 12 analyzes the data of the first item of the logging data 3.
  • step S14 the data analysis unit 12 first obtains the amount of change between the data for the time-series data of the nth item, and calculates the cumulative value of the obtained amount of change. For example, when the data of the nth item included in the logging data 3 is "1", “3", “3", “7”, "5", and "4" in the order of oldest time, the data is between the data.
  • the data analysis unit 12 uses the calculated cumulative value to obtain the degree of change in the data according to the following equation (1).
  • the degree of change in data is information indicating how much the actual value fluctuates with respect to the range of values that can be expressed by the data.
  • the range of data in the formula (1) is the range that the data of the nth item can take.
  • the range of each data included in the logging data 3 is predetermined as a data type.
  • the logging data 3 includes information on the data range of the data of each item, that is, information on the data type of the data of each item as header information.
  • the logging data display device 1 may acquire information on the data range of each item of the logging data 3 in advance and hold it in the data holding unit 21.
  • an example of calculating the degree of change of data according to the formula (1) is shown, but the formula for calculating the degree of change is not limited to the formula (1).
  • step S15 Yes
  • the display control unit 13 selects data of a predetermined number of items from the data constituting the logging data 3 in descending order of the degree of change, and selects the selected data.
  • a graph is displayed on the display unit 31 (step S17).
  • the predetermined number is the number of graphs that the display unit 31 can display at the same time. The number of graphs that can be displayed simultaneously by the display unit 31 may be changed by the user.
  • FIG. 4 is a diagram showing an example of a graph display screen 40 displayed on the display unit 31 by the logging data display device 1.
  • the display control unit 13 of the logging data display device 1 generates screen data as shown in FIG. 4 based on the data of the item selected from the logging data 3 and outputs the screen data to the display unit 31.
  • the display unit 31 Based on the screen data received from the display control unit 13, the display unit 31 simultaneously displays a graph of a predetermined number of data having a large degree of change among the data constituting the logging data 3 on the graph display screen 40. ..
  • the logging data display device 1 selects data having a large degree of change in the time-series data from the data of the plurality of items constituting the logging data 3, graphs each of the selected data, and displays the display unit 31. Display at the same time.
  • the logging data 3 often includes data whose values do not change, but according to the logging data display device 1, data having a small degree of change is not displayed, and a graph of data having a large degree of change is preferentially displayed. Therefore, there is a high possibility that a graph of the data that the user wants to display is displayed, eliminating the trouble of searching for data whose value is changing from a huge amount of data, and finding the data that needs to be confirmed. It will be easier.
  • the display unit 31 displays the degree of change calculated for displaying the graph when the user requests it. It has a function to display on the screen and let the user confirm it, and to accept the operation of changing the data item to be displayed in the graph. The operation of accepting the operation of changing the data item displayed in the graph by the logging data display device 1 will be described below.
  • FIG. 5 is a flowchart showing an example of an operation of accepting a change operation of a data item to be displayed as a graph by the logging data display device 1.
  • the operation receiving unit 14 accepts the change degree confirmation operation of each data from the user (step S21), and the display control unit 13 changes.
  • the degree confirmation screen is displayed on the display unit 31 (step S22).
  • the change degree confirmation operation received by the operation reception unit 14 in step S21 is, for example, to display the change degree by the user moving the mouse pointer on the graph display screen displayed by the display unit 31 and right-clicking. Call the menu to start and select this menu. Note that this operation is an example, and any operation may be used.
  • step S22 the display control unit 13 generates, for example, the data of the change degree confirmation screen 50 as shown in FIG. 6 and outputs the data to the display unit 31, and the display unit 31 receives the change received from the display control unit 13.
  • the change degree confirmation screen 50 is displayed based on the data of the degree confirmation screen 50.
  • FIG. 6 is a diagram showing an example of a change degree confirmation screen 50 displayed on the display unit 31 by the logging data display device 1.
  • the change degree confirmation screen 50 includes a change degree display area 51 of data of each item. Further, the change degree confirmation screen 50 includes a designation acceptance area 52 for accepting a designation as to whether or not to display the data as a graph.
  • the operation reception unit 14 accepts the operation of changing the target item of the graph display from the user (step S23).
  • the operation of changing the target item of the graph display is an operation of checking the check box of the designated receiving area 52 shown in FIG. 6 and an operation of unchecking the check box.
  • the data in which the check box of the designated reception area 52 is checked is the target of the graph display.
  • the data in which the check box of the designated acceptance area 52 is not checked is not the target of the graph display.
  • the number of check boxes that can be checked is limited to the number of graphs that the display unit 31 can display at the same time.
  • the display unit 31 displays the change degree confirmation screen 50 in a state in which the check box of the data displayed in the graph is checked.
  • the user confirms the degree of change for each data item displayed in the degree of change display area 51 of the degree of change confirmation screen 50, and performs an operation of changing the target item of the graph display.
  • the degree of change is indicated by a numerical value on the screen 50 for confirming the degree of change in FIG. 6, the difference in the degree of change can be grasped by the color by changing the color of the data name according to the magnitude of the degree of change. It doesn't matter.
  • the graph is displayed at that time.
  • the display unit 31 displays the data of the target item of the above in a graph (step S24).
  • the display control unit 13 updates the screen data of the graph display and outputs it to the display unit 31 based on the data of the item in which the check box of the designated acceptance area 52 is checked.
  • the display unit 31 updates the graph display screen 40, that is, changes the graph displayed on the graph display screen 40, based on the screen data received from the display control unit 13.
  • the logging data display device 1 has a function of displaying the change degree confirmation screen 50 by the display unit 31, among the data other than the data displayed in the graph when the operation shown in FIG. 3 is executed, among the data other than the data displayed in the graph.
  • the data desired by the user can be displayed as a graph. Further, when selecting the data to be displayed in the graph, the user can confirm the degree of change of each data. Therefore, the user does not select the data having a small degree of change, and it becomes easy to find the data that needs to be confirmed.
  • the logging data display device 1 when the logging data display device 1 according to the present embodiment displays the logging data 3 composed of the data of a plurality of items, the logging data display device 1 calculates the degree of change of the value for each of the data of each item and changes.
  • the data of a certain number of items are displayed in a graph in order from the data of the items with the highest degree. It is considered that the user confirms the logging data 3 in many cases when an abnormality occurs in the device. In that case, it is necessary to confirm the data output from the device in which the abnormality occurs, and the abnormality also occurs.
  • the data output from the device in which is generated tends to have a larger degree of change in value than the data output from other devices. Therefore, according to the logging data display device 1, the user does not have to search for data that is highly necessary to be confirmed from among the data of many items constituting the logging data, and the work load of confirming the logging data 3 is reduced. can do.
  • the configuration shown in the above embodiment is an example of the content, can be combined with another known technique, and a part of the configuration is omitted or changed without departing from the gist. It is also possible.

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Abstract

This logging data display program, which implements this logging data display device (1), makes a computer execute: a data analysis step for analyzing logging data composed of a plurality of types of time series data, which are created in a control device that controls various types of devices in a production site, and calculating the degree of change in values for each time series data; and a display control step for selecting and displaying a portion of the time series data on a display unit (31) on the basis of the degree of change in values for each time series data.

Description

ロギングデータ表示プログラム、ロギングデータ表示装置およびロギングデータ表示方法Logging data display program, logging data display device and logging data display method
　本開示は、工場の生産現場に設置された各種装置から出力されるロギングデータを表示するロギングデータ表示装置を実現するロギングデータ表示プログラム、ロギングデータ表示装置およびロギングデータ表示方法に関する。 This disclosure relates to a logging data display program, a logging data display device, and a logging data display method that realize a logging data display device that displays logging data output from various devices installed at a production site in a factory.
　生産現場では様々な種類の装置が用いられ、各装置はプログラマブルロジックコントローラといった制御装置により制御される。一般的に、制御装置は、制御する装置の保守作業を効率的に行えるようにするよう、各装置の動作に関するデータを繰り返し収集してロギングデータとして記憶する機能を有する。 Various types of devices are used at the production site, and each device is controlled by a control device such as a programmable logic controller. In general, the control device has a function of repeatedly collecting data related to the operation of each device and storing it as logging data so that maintenance work of the device to be controlled can be performed efficiently.
　特許文献１には、プラント等の被制御系の監視および制御を行う制御システムにおいて、プラントの複数のポイントから出力される制御信号および制御データといった複数チャネルのデータを周期的に収集し、収集したデータをチャネルごとに分析してチャネルごとにトレンドグラフを表示する技術が記載されている。 In Patent Document 1, in a control system that monitors and controls a controlled system such as a plant, data of a plurality of channels such as control signals and control data output from a plurality of points of the plant are periodically collected and collected. A technique for analyzing data for each channel and displaying a trend graph for each channel is described.
特開２００２－１３２３３９号公報JP-A-2002-132339
　制御装置が制御を行う対象の装置の数が増加すると、これに伴いロギングデータとして収集するデータの種類も増加し、その数は数十種類～数百種類、またはそれ以上になることが考えられる。ここで、生産現場で装置の停止、故障などの異常が発生した場合、保守作業において確認が必要となるデータは、ロギングデータを構成する多数の種類のデータの中の一部となる。すなわち、保守作業においては、ロギングデータに含まれる多数の種類のデータのうち、異常発生箇所に近い一部の装置から取得したデータが確認の対象となる。しかしながら、従来は、ロギングデータに含まれる全てのデータの中から確認の対象となるデータを作業者が探し出す必要があり、作業負荷が大きいという問題があった。 As the number of target devices controlled by the control device increases, the types of data collected as logging data also increase, and the number may be tens to hundreds or more. .. Here, when an abnormality such as a device stoppage or failure occurs at the production site, the data that needs to be confirmed in the maintenance work is a part of a large number of types of data constituting the logging data. That is, in the maintenance work, among the many types of data included in the logging data, the data acquired from some of the devices near the abnormal occurrence location is the target of confirmation. However, in the past, there was a problem that the worker had to search for the data to be confirmed from all the data included in the logging data, and the workload was heavy.
　本開示は、上記に鑑みてなされたものであって、ロギングデータを確認する作業の負荷を軽減することが可能なロギングデータ表示装置を実現するロギングデータ表示プログラムを得ることを目的とする。 The present disclosure has been made in view of the above, and an object of the present disclosure is to obtain a logging data display program that realizes a logging data display device capable of reducing the work load of checking logging data.
　上述した課題を解決し、目的を達成するために、ロギングデータ表示プログラムは、生産現場の各種装置を制御する制御装置で作成された、複数種類の時系列データで構成されるロギングデータを解析して時系列データごとに値の変化度を算出するデータ解析ステップと、時系列データごとの値の変化度に基づいて時系列データの一部を選択して表示部に表示させる表示制御ステップと、をコンピュータに実行させる。 In order to solve the above-mentioned problems and achieve the purpose, the logging data display program analyzes logging data composed of multiple types of time-series data created by a control device that controls various devices at the production site. A data analysis step that calculates the degree of change in the value for each time-series data, and a display control step that selects a part of the time-series data based on the degree of change in the value for each time-series data and displays it on the display unit. Let the computer run.
　本開示にかかるロギングデータ表示プログラムは、ロギングデータを確認する作業の負荷を軽減可能なロギングデータ表示装置を実現できる、という効果を奏する。 The logging data display program according to the present disclosure has the effect of being able to realize a logging data display device that can reduce the work load of checking the logging data.
実施の形態にかかるロギングデータ表示装置を含んで構成されるデータ収集システムを示す図The figure which shows the data collection system which comprises the logging data display device which concerns on embodiment. 実施の形態にかかるロギングデータ表示装置の構成例を示す図The figure which shows the configuration example of the logging data display device which concerns on embodiment ロギングデータ表示装置がロギングデータを表示する動作の一例を示すフローチャートFlow chart showing an example of the operation of the logging data display device to display logging data ロギングデータ表示装置が表示部に表示するグラフ表示画面の一例を示す図The figure which shows an example of the graph display screen which the logging data display device displays on the display part. ロギングデータ表示装置がグラフ表示するデータ項目の変更操作を受け付ける動作の一例を示すフローチャートA flowchart showing an example of an operation of accepting a change operation of a data item displayed in a graph by a logging data display device. ロギングデータ表示装置が表示部に表示する変化度確認用画面の一例を示す図The figure which shows an example of the change degree confirmation screen which the logging data display device displays on the display part.
　以下に、本開示の実施の形態にかかるロギングデータ表示プログラム、ロギングデータ表示装置およびロギングデータ表示方法を図面に基づいて詳細に説明する。 Hereinafter, the logging data display program, the logging data display device, and the logging data display method according to the embodiment of the present disclosure will be described in detail based on the drawings.
実施の形態．
　図１は、実施の形態にかかるロギングデータ表示装置を含んで構成されるデータ収集システムを示す図である。データ収集システムは、ロギングデータ表示装置１と、生産現場に設置され、生産現場の各装置を制御するとともに各装置から制御データを収集する制御装置２と、を含む。 Embodiment.
FIG. 1 is a diagram showing a data collection system including a logging data display device according to an embodiment. The data collection system includes a logging data display device 1 and a control device 2 installed at a production site that controls each device at the production site and collects control data from each device.
　制御装置２は、制御対象の各装置から周期的に制御データを収集し、収集した制御データを集約してロギングデータ３を作成する。すなわち、制御装置２は、各装置から制御データを収集すると、収集した制御データをロギングデータ３に追加してロギングデータ３を更新する。制御装置２は、ロギングデータ表示装置１から要求された場合、ロギングデータ３を出力する。制御装置２が収集する制御データは、例えば、各装置が備える電流センサ、電圧センサ、温度センサなどの各種センサが出力するセンシングデータである。 The control device 2 periodically collects control data from each device to be controlled, aggregates the collected control data, and creates logging data 3. That is, when the control device 2 collects the control data from each device, the control device 2 adds the collected control data to the logging data 3 and updates the logging data 3. The control device 2 outputs the logging data 3 when requested by the logging data display device 1. The control data collected by the control device 2 is, for example, sensing data output by various sensors such as a current sensor, a voltage sensor, and a temperature sensor included in each device.
　ロギングデータ表示装置１は、制御装置２にロギングデータ３を要求し、ロギングデータ３を取得する。また、ロギングデータ表示装置１は、制御装置２から取得したロギングデータを解析し、ロギングデータ３を構成する各種制御データのうち、値の変化度が大きい制御データを選択して表示する。ロギングデータ表示装置１は、例えば、ユーザからロギングデータの表示開始を指示する操作を受けた場合、制御装置２にロギングデータ３を要求する。 The logging data display device 1 requests the logging data 3 from the control device 2 and acquires the logging data 3. Further, the logging data display device 1 analyzes the logging data acquired from the control device 2, and selects and displays the control data having a large change in value from the various control data constituting the logging data 3. The logging data display device 1 requests the control device 2 for the logging data 3 when, for example, the user receives an operation instructing the start of displaying the logging data.
　制御装置２が出力するロギングデータ３は、図１に示すように、制御装置２が各装置から収集した複数項目（項目１，項目２，項目３，…）の制御データ、すなわち、複数種類の制御データと、各制御データを収集した日時の情報と、を含む。なお、以下の説明では、ロギングデータ３に含まれる制御データを単に「データ」と記載する。 As shown in FIG. 1, the logging data 3 output by the control device 2 is control data of a plurality of items (item 1, item 2, item 3, ...) Collected from each device by the control device 2, that is, a plurality of types. It includes control data and information on the date and time when each control data was collected. In the following description, the control data included in the logging data 3 is simply referred to as "data".
　ロギングデータ表示装置１は、例えば、パーソナルコンピュータで実現される。すなわち、ロギングデータを表示するアプリケーションソフトウェアであるロギングデータ表示プログラムをパーソナルコンピュータにインストールし、ロギングデータ表示プログラムを実行することによりパーソナルコンピュータがロギングデータ表示装置１として動作する。ロギングデータ表示装置１をパーソナルコンピュータで実現する場合のロギングデータ表示装置１の構成例を図２に示す。 The logging data display device 1 is realized by, for example, a personal computer. That is, the personal computer operates as the logging data display device 1 by installing the logging data display program, which is application software for displaying logging data, on the personal computer and executing the logging data display program. FIG. 2 shows a configuration example of the logging data display device 1 when the logging data display device 1 is realized by a personal computer.
　図２は、実施の形態にかかるロギングデータ表示装置１の構成例を示す図である。ロギングデータ表示装置１は、ＣＰＵ（Central　Processing　Unit）１０１がロギングデータ表示プログラムを実行することにより実現されるデータ取得部１１、データ解析部１２、表示制御部１３および操作受付部１４と、メモリ１０２で実現されるデータ保持部２１と、表示装置１０３で実現される表示部３１とを備える。ロギングデータ表示プログラムは、例えば、ＣＤ（Compact　Disc）－ＲＯＭ、ＤＶＤ（Digital　Versatile　Disc）－ＲＯＭなどの記憶媒体に書き込まれた状態でユーザに供給され、メモリ１０２にインストールされる。ロギングデータ表示プログラムは、インターネットなどを介してユーザに供給される形態であってもよい。なお、メモリ１０２は、ＲＡＭ（Random　Access　Memory）、ＲＯＭ（Read　Only　Memory）、フラッシュメモリ、ＥＰＲＯＭ（Erasable　Programmable　ＲＯＭ）、ＥＥＰＲＯＭ（登録商標）（Electrically　ＥＰＲＯＭ）などの不揮発性または揮発性の半導体メモリ、磁気ディスク、フレキシブルディスク、光ディスク、コンパクトディスク、ミニディスク、ＤＶＤなどである。表示装置１０３は、ＬＣＤ（Liquid　Crystal　Display）などである。また、ロギングデータ表示装置１は入力装置１０４を備える。入力装置１０４は、マウス、キーボードなどであり、ユーザがロギングデータ表示装置１を操作する場合に使用される。 FIG. 2 is a diagram showing a configuration example of the logging data display device 1 according to the embodiment. The logging data display device 1 includes a data acquisition unit 11, a data analysis unit 12, a display control unit 13, an operation reception unit 14, and a memory 102 realized by the CPU (Central Processing Unit) 101 executing a logging data display program. The data holding unit 21 realized by the above and the display unit 31 realized by the display device 103 are provided. The logging data display program is supplied to the user in a state of being written on a storage medium such as a CD (Compact Disc) -ROM or a DVD (Digital Versatile Disc) -ROM, and is installed in the memory 102. The logging data display program may be supplied to the user via the Internet or the like. The memory 102 is a non-volatile or volatile semiconductor memory such as RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable ROM), EEPROM (registered trademark) (Electrically EPROM). Magnetic disks, flexible disks, optical disks, compact disks, mini disks, DVDs, and the like. The display device 103 is an LCD (Liquid Crystal Display) or the like. Further, the logging data display device 1 includes an input device 104. The input device 104 is a mouse, a keyboard, or the like, and is used when the user operates the logging data display device 1.
　データ取得部１１は、生産現場の制御装置２で作成されたロギングデータ３を取得する。ここで、ロギングデータ３は、例えば、制御装置２およびロギングデータ表示装置１のそれぞれに着脱可能な外部メモリを介して受け渡される。この場合、データ取得部１１は、外部メモリからロギングデータ３を読み出す。データ取得部１１は、有線または無線の通信回線を介し、ＦＴＰ（File　Transfer　Protocol）に従ったファイル転送を利用するなどして制御装置２からロギングデータ３を受け取るようにしてもよい。データ解析部１２は、ロギングデータ３を解析し、ロギングデータ３を構成するデータごとに値の変化度を算出する。表示制御部１３は、表示部３１が表示する画面のデータを生成して表示部３１へ出力する。操作受付部１４は、ユーザによるロギングデータ表示装置１に対する操作を受け付ける。データ保持部２１は、データ取得部１１が取得したロギングデータ３を保持する。表示部３１は、表示制御部１３が生成する画面のデータである画面データに基づいて各種画面を表示する。表示部３１が表示する画面にはロギングデータ３の表示画面が含まれる。 The data acquisition unit 11 acquires the logging data 3 created by the control device 2 at the production site. Here, the logging data 3 is passed to, for example, the control device 2 and the logging data display device 1 via a detachable external memory. In this case, the data acquisition unit 11 reads the logging data 3 from the external memory. The data acquisition unit 11 may receive the logging data 3 from the control device 2 by using file transfer according to FTP (File Transfer Protocol) via a wired or wireless communication line. The data analysis unit 12 analyzes the logging data 3 and calculates the degree of change in the value for each data constituting the logging data 3. The display control unit 13 generates screen data displayed by the display unit 31 and outputs the data to the display unit 31. The operation receiving unit 14 receives an operation on the logging data display device 1 by the user. The data holding unit 21 holds the logging data 3 acquired by the data acquisition unit 11. The display unit 31 displays various screens based on screen data which is screen data generated by the display control unit 13. The screen displayed by the display unit 31 includes a display screen of the logging data 3.
　つづいて、ロギングデータ表示装置１の動作を説明する。図３は、ロギングデータ表示装置１がロギングデータを表示する動作の一例を示すフローチャートである。 Next, the operation of the logging data display device 1 will be described. FIG. 3 is a flowchart showing an example of an operation in which the logging data display device 1 displays logging data.
　ロギングデータ表示装置１がロギングデータを表示する動作では、まず、データ取得部１１が制御装置２で作成されたロギングデータ３を取得する（ステップＳ１１）。データ取得部１１が取得したロギングデータ３はデータ保持部２１が保持する。 In the operation of the logging data display device 1 to display the logging data, first, the data acquisition unit 11 acquires the logging data 3 created by the control device 2 (step S11). The logging data 3 acquired by the data acquisition unit 11 is held by the data holding unit 21.
　次に、データ解析部１２が、ロギングデータ３に含まれるデータ項目の数Ｎをカウントする（ステップＳ１２）。 Next, the data analysis unit 12 counts the number N of data items included in the logging data 3 (step S12).
　データ解析部１２は、次に、変数ｎをｎ＝１に設定し（ステップＳ１３）、ロギングデータ３のｎ番目の項目のデータを解析してデータの変化度を算出する（ステップＳ１４）。なお、ロギングデータ３を表示する動作を開始した後の最初に実行するステップＳ１４では、データ解析部１２はロギングデータ３の１番目の項目のデータを解析することになる。 Next, the data analysis unit 12 sets the variable n to n = 1 (step S13), analyzes the data of the nth item of the logging data 3, and calculates the degree of change in the data (step S14). In step S14, which is executed first after starting the operation of displaying the logging data 3, the data analysis unit 12 analyzes the data of the first item of the logging data 3.
　ステップＳ１４において、データ解析部１２は、まず、ｎ番目の項目の時系列データについて、データ間の変化量を求め、求めた変化量の累積値を算出する。例えば、ロギングデータ３に含まれるｎ番目の項目のデータが、時刻の古い順に‘１’、‘３’、‘３’、‘７'、‘５’、‘４’の６つの場合、データ間の変化量は、‘２’、‘０’、‘４’、‘２’、‘１’であり、累積値＝２＋０＋４＋２＋１＝９となる。データ解析部１２は、算出した累積値を用い、以下の式（１）に従いデータの変化度を求める。データの変化度は、データが表現可能な値の範囲に対して実際の値がどの程度変動したかを示す情報である。 In step S14, the data analysis unit 12 first obtains the amount of change between the data for the time-series data of the nth item, and calculates the cumulative value of the obtained amount of change. For example, when the data of the nth item included in the logging data 3 is "1", "3", "3", "7", "5", and "4" in the order of oldest time, the data is between the data. The amount of change in is '2', '0', '4', '2', and '1', and the cumulative value = 2 + 0 + 4 + 2 + 1 = 9. The data analysis unit 12 uses the calculated cumulative value to obtain the degree of change in the data according to the following equation (1). The degree of change in data is information indicating how much the actual value fluctuates with respect to the range of values that can be expressed by the data.
　（データの変化度）＝（データ間の変化量の累積値）／（データの範囲）　…（１） (Degree of change in data) = (cumulative value of amount of change between data) / (range of data) ... (1)
　式（１）におけるデータの範囲とは、ｎ番目の項目のデータが取り得る範囲である。例えば、データが４ビットで表現される場合のデータの範囲は２4＝１６、データが８ビットで表現される場合のデータの範囲は２8＝２５６となる。ロギングデータ３に含まれる各データの範囲はデータ型として予め定められている。図１では記載を省略しているが、ロギングデータ３は、各項目のデータのデータ範囲の情報、すなわち、各項目のデータのデータ型の情報をヘッダ情報として含むものとする。なお、ロギングデータ表示装置１は、ロギングデータ３の各項目のデータ範囲の情報を予め取得してデータ保持部２１で保持するようにしてもよい。本実施の形態ではデータの変化度を式（１）に従い算出する例を示したが、変化度の算出式を式（１）に限定するものではない。 The range of data in the formula (1) is the range that the data of the nth item can take. For example, the range of data is 2 4 = 16 in the case where data is represented by 4 bits, the range of data when the data is represented by 8 bits is 2 8 = 256. The range of each data included in the logging data 3 is predetermined as a data type. Although the description is omitted in FIG. 1, the logging data 3 includes information on the data range of the data of each item, that is, information on the data type of the data of each item as header information. The logging data display device 1 may acquire information on the data range of each item of the logging data 3 in advance and hold it in the data holding unit 21. In the present embodiment, an example of calculating the degree of change of data according to the formula (1) is shown, but the formula for calculating the degree of change is not limited to the formula (1).
　データ解析部１２は、ｎ番目の項目のデータの変化度を算出した後、ｎ＝Ｎであるか、すなわち、ロギングデータ３の全ての項目のデータについて変化度を算出したかを確認する（ステップＳ１５）。ｎ＝Ｎではない場合（ステップＳ１５：Ｎｏ）、データ解析部１２は、ｎ＝ｎ＋１を実行して変数ｎを１増加させ（ステップＳ１６）、ステップＳ１４の処理を再度実行する。 After calculating the degree of change of the data of the nth item, the data analysis unit 12 confirms whether n = N, that is, whether the degree of change has been calculated for the data of all the items of the logging data 3 (step). S15). When n = N is not satisfied (step S15: No), the data analysis unit 12 executes n = n + 1 to increase the variable n by 1 (step S16), and executes the process of step S14 again.
　ｎ＝Ｎの場合（ステップＳ１５：Ｙｅｓ）、表示制御部１３が、ロギングデータ３を構成するデータから、変化度が大きい順に、予め定められた数の項目のデータを選択し、選択したデータを表示部３１にグラフ表示する（ステップＳ１７）。予め定められた数は、表示部３１が同時に表示可能なグラフの数である。表示部３１が同時に表示可能なグラフの数は、ユーザが変更できるようにしてもよい。 When n = N (step S15: Yes), the display control unit 13 selects data of a predetermined number of items from the data constituting the logging data 3 in descending order of the degree of change, and selects the selected data. A graph is displayed on the display unit 31 (step S17). The predetermined number is the number of graphs that the display unit 31 can display at the same time. The number of graphs that can be displayed simultaneously by the display unit 31 may be changed by the user.
　図４は、ロギングデータ表示装置１が表示部３１に表示するグラフ表示画面４０の一例を示す図である。ロギングデータ表示装置１の表示制御部１３は、ステップＳ１７において、ロギングデータ３から選択した項目のデータに基づいて図４に示すような画面のデータを生成して表示部３１に出力する。表示部３１は、表示制御部１３から受け取った画面のデータに基づいて、ロギングデータ３を構成するデータのうち、変化度が大きい定められた数のデータのグラフをグラフ表示画面４０に同時に表示する。 FIG. 4 is a diagram showing an example of a graph display screen 40 displayed on the display unit 31 by the logging data display device 1. In step S17, the display control unit 13 of the logging data display device 1 generates screen data as shown in FIG. 4 based on the data of the item selected from the logging data 3 and outputs the screen data to the display unit 31. Based on the screen data received from the display control unit 13, the display unit 31 simultaneously displays a graph of a predetermined number of data having a large degree of change among the data constituting the logging data 3 on the graph display screen 40. ..
　このように、ロギングデータ表示装置１は、ロギングデータ３を構成する複数の項目のデータのうち、時系列データの変化度が大きいデータを選択し、選択した各データをそれぞれグラフ化して表示部３１に同時に表示する。ロギングデータ３には、値が変化しないデータも含まれる事が多いが、ロギングデータ表示装置１によれば、変化度が小さいデータは表示されず、変化度の大きいデータのグラフが優先して表示されるため、ユーザが表示を所望するデータのグラフが表示されている可能性が高く、膨大なデータの中から値が変化しているデータを探す手間がなくなり、確認する必要があるデータを見つけやすくなる。 In this way, the logging data display device 1 selects data having a large degree of change in the time-series data from the data of the plurality of items constituting the logging data 3, graphs each of the selected data, and displays the display unit 31. Display at the same time. The logging data 3 often includes data whose values do not change, but according to the logging data display device 1, data having a small degree of change is not displayed, and a graph of data having a large degree of change is preferentially displayed. Therefore, there is a high possibility that a graph of the data that the user wants to display is displayed, eliminating the trouble of searching for data whose value is changing from a huge amount of data, and finding the data that needs to be confirmed. It will be easier.
　また、ロギングデータ表示装置１は、図４に示すようなグラフ表示を表示部３１に行っている状態のとき、ユーザから要求があると、グラフ表示を行うために算出した変化度を表示部３１に表示してユーザに確認させるとともに、グラフ表示するデータ項目の変更操作を受け付ける機能を有する。ロギングデータ表示装置１がグラフ表示するデータ項目の変更操作を受け付ける動作を以下に説明する。 Further, when the logging data display device 1 is performing the graph display as shown in FIG. 4 on the display unit 31, the display unit 31 displays the degree of change calculated for displaying the graph when the user requests it. It has a function to display on the screen and let the user confirm it, and to accept the operation of changing the data item to be displayed in the graph. The operation of accepting the operation of changing the data item displayed in the graph by the logging data display device 1 will be described below.
　図５は、ロギングデータ表示装置１がグラフ表示させるデータ項目の変更操作を受け付ける動作の一例を示すフローチャートである。 FIG. 5 is a flowchart showing an example of an operation of accepting a change operation of a data item to be displayed as a graph by the logging data display device 1.
　ロギングデータ表示装置１がグラフ表示させるデータ項目の変更操作を受け付ける動作では、まず、操作受付部１４が、各データの変化度確認操作をユーザから受け付け（ステップＳ２１）、表示制御部１３が、変化度確認用画面を表示部３１に表示する（ステップＳ２２）。操作受付部１４が、ステップＳ２１で受け付ける変化度確認操作は、例えば、表示部３１が表示しているグラフ表示画面の上にユーザがマウスのポインタを合わせて右クリックすることで変化度の表示を開始させるためのメニューを呼び出し、このメニューを選択する操作とする。なお、この操作は一例であり、どのような操作であってもよい。 In the operation of accepting the operation of changing the data item to be displayed in the graph by the logging data display device 1, first, the operation receiving unit 14 accepts the change degree confirmation operation of each data from the user (step S21), and the display control unit 13 changes. The degree confirmation screen is displayed on the display unit 31 (step S22). The change degree confirmation operation received by the operation reception unit 14 in step S21 is, for example, to display the change degree by the user moving the mouse pointer on the graph display screen displayed by the display unit 31 and right-clicking. Call the menu to start and select this menu. Note that this operation is an example, and any operation may be used.
　ステップＳ２２において、表示制御部１３は、例えば、図６に示すような変化度確認用画面５０のデータを生成して表示部３１に出力し、表示部３１は、表示制御部１３から受け取った変化度確認用画面５０のデータに基づいて、変化度確認用画面５０を表示する。なお、図６は、ロギングデータ表示装置１が表示部３１に表示する変化度確認用画面５０の一例を示す図である。変化度確認用画面５０は、各項目のデータの変化度表示領域５１を含む。また、変化度確認用画面５０は、データをグラフ表示するか否かの指定を受け付けるための指定受け付け領域５２を含む。 In step S22, the display control unit 13 generates, for example, the data of the change degree confirmation screen 50 as shown in FIG. 6 and outputs the data to the display unit 31, and the display unit 31 receives the change received from the display control unit 13. The change degree confirmation screen 50 is displayed based on the data of the degree confirmation screen 50. Note that FIG. 6 is a diagram showing an example of a change degree confirmation screen 50 displayed on the display unit 31 by the logging data display device 1. The change degree confirmation screen 50 includes a change degree display area 51 of data of each item. Further, the change degree confirmation screen 50 includes a designation acceptance area 52 for accepting a designation as to whether or not to display the data as a graph.
　ステップＳ２２を実行して変化度確認用画面５０の表示を表示部３１が開始した後、操作受付部１４が、グラフ表示の対象項目の変更操作をユーザから受け付ける（ステップＳ２３）。グラフ表示の対象項目の変更操作は、図６に示す指定受け付け領域５２のチェックボックスにチェックを入れる操作、および、チェックを外す操作である。指定受け付け領域５２のチェックボックスにチェックが入っているデータはグラフ表示の対象となる。一方、指定受け付け領域５２のチェックボックスにチェックが入っていないデータはグラフ表示の対象ではない。なお、チェックボックスにチェックを入れられる数は、表示部３１が同時に表示可能なグラフの数以下に制限される。また、表示部３１は、変化度確認用画面５０の表示開始時点では、その前にグラフ表示していたデータのチェックボックスにチェックが入った状態の変化度確認用画面５０を表示する。ユーザは、変化度確認用画面５０の変化度表示領域５１に表示されるデータ項目ごとの変化度を確認し、グラフ表示の対象項目の変更操作を行う。 After the display unit 31 starts displaying the change degree confirmation screen 50 by executing step S22, the operation reception unit 14 accepts the operation of changing the target item of the graph display from the user (step S23). The operation of changing the target item of the graph display is an operation of checking the check box of the designated receiving area 52 shown in FIG. 6 and an operation of unchecking the check box. The data in which the check box of the designated reception area 52 is checked is the target of the graph display. On the other hand, the data in which the check box of the designated acceptance area 52 is not checked is not the target of the graph display. The number of check boxes that can be checked is limited to the number of graphs that the display unit 31 can display at the same time. Further, at the time of starting the display of the change degree confirmation screen 50, the display unit 31 displays the change degree confirmation screen 50 in a state in which the check box of the data displayed in the graph is checked. The user confirms the degree of change for each data item displayed in the degree of change display area 51 of the degree of change confirmation screen 50, and performs an operation of changing the target item of the graph display.
　なお、図６の変化度確認用画面５０では変化度を数値で示すこととしたが、変化度の大きさに応じてデータ名の色を変えるなどして、変化度の違いを色で把握できるようにしても構わない。 Although the degree of change is indicated by a numerical value on the screen 50 for confirming the degree of change in FIG. 6, the difference in the degree of change can be grasped by the color by changing the color of the data name according to the magnitude of the degree of change. It doesn't matter.
　ユーザによるグラフ表示の対象項目の変更操作が完了すると、すなわち、図６に示す変化度確認用画面５０を表示部３１が表示している状態でＯＫボタンがクリックされると、その時点のグラフ表示の対象項目のデータを表示部３１がグラフ表示する（ステップＳ２４）。具体的には、表示制御部１３が、指定受け付け領域５２のチェックボックスにチェックが入っている項目のデータに基づいて、グラフ表示の画面データを更新して表示部３１に出力する。表示部３１は、表示制御部１３から受け取った画面データに基づいて、グラフ表示画面４０の更新、すなわち、グラフ表示画面４０に表示するグラフの変更を行う。 When the user completes the operation of changing the target item of the graph display, that is, when the OK button is clicked while the display unit 31 is displaying the change degree confirmation screen 50 shown in FIG. 6, the graph is displayed at that time. The display unit 31 displays the data of the target item of the above in a graph (step S24). Specifically, the display control unit 13 updates the screen data of the graph display and outputs it to the display unit 31 based on the data of the item in which the check box of the designated acceptance area 52 is checked. The display unit 31 updates the graph display screen 40, that is, changes the graph displayed on the graph display screen 40, based on the screen data received from the display control unit 13.
　このように、ロギングデータ表示装置１は、変化度確認用画面５０を表示部３１が表示する機能を有するため、図３に示す動作を実行した場合にグラフ表示されたデータ以外のデータのうち、ユーザが希望するデータをグラフ表示させることができる。また、グラフ表示させるデータを選択する際に、各データの変化度をユーザが確認することができる。よって、変化度が小さいデータをユーザが選択することがなくなり、確認の必要があるデータを見つけやすくなる。 As described above, since the logging data display device 1 has a function of displaying the change degree confirmation screen 50 by the display unit 31, among the data other than the data displayed in the graph when the operation shown in FIG. 3 is executed, among the data other than the data displayed in the graph. The data desired by the user can be displayed as a graph. Further, when selecting the data to be displayed in the graph, the user can confirm the degree of change of each data. Therefore, the user does not select the data having a small degree of change, and it becomes easy to find the data that needs to be confirmed.
　以上のように、本実施の形態にかかるロギングデータ表示装置１は、複数項目のデータで構成されるロギングデータ３を表示する際に、各項目のデータそれぞれについて値の変化度を算出し、変化度が大きい項目のデータから順番に、一定数の項目のデータを、グラフ表示する。ロギングデータ３をユーザが確認するのは、装置の異常が発生した場合が多いと考えられるが、その場合、異常が発生している装置から出力されるデータを確認する必要があり、また、異常が発生している装置から出力されるデータは、その他の装置から出力されるデータと比較して値の変化度が大きくなる傾向がある。そのため、ロギングデータ表示装置１によれば、ロギングデータを構成する多数項目のデータの中から、確認する必要性が高いデータをユーザが探し出す手間がなくなり、ロギングデータ３を確認する作業の負荷を軽減することができる。 As described above, when the logging data display device 1 according to the present embodiment displays the logging data 3 composed of the data of a plurality of items, the logging data display device 1 calculates the degree of change of the value for each of the data of each item and changes. The data of a certain number of items are displayed in a graph in order from the data of the items with the highest degree. It is considered that the user confirms the logging data 3 in many cases when an abnormality occurs in the device. In that case, it is necessary to confirm the data output from the device in which the abnormality occurs, and the abnormality also occurs. The data output from the device in which is generated tends to have a larger degree of change in value than the data output from other devices. Therefore, according to the logging data display device 1, the user does not have to search for data that is highly necessary to be confirmed from among the data of many items constituting the logging data, and the work load of confirming the logging data 3 is reduced. can do.
　以上の実施の形態に示した構成は、内容の一例を示すものであり、別の公知の技術と組み合わせることも可能であるし、要旨を逸脱しない範囲で、構成の一部を省略、変更することも可能である。 The configuration shown in the above embodiment is an example of the content, can be combined with another known technique, and a part of the configuration is omitted or changed without departing from the gist. It is also possible.
　１　ロギングデータ表示装置、２　制御装置、３　ロギングデータ、１１　データ取得部、１２　データ解析部、１３　表示制御部、１４　操作受付部、２１　データ保持部、３１　表示部、４０　グラフ表示画面、５０　変化度確認用画面、５１　変化度表示領域、５２　指定受け付け領域。
  1 Logging data display device, 2 Control device, 3 Logging data, 11 Data acquisition unit, 12 Data analysis unit, 13 Display control unit, 14 Operation reception unit, 21 Data retention unit, 31 Display unit, 40 Graph display screen, 50 Changes Degree confirmation screen, 51 degree of change display area, 52 designated acceptance area.

Claims (7)

  1. 　生産現場の各種装置を制御する制御装置で作成された、複数種類の時系列データで構成されるロギングデータを解析して前記時系列データごとに値の変化度を算出するデータ解析ステップと、
    　前記時系列データごとの値の変化度に基づいて前記時系列データの一部を選択して表示部に表示させる表示制御ステップと、
    　をコンピュータに実行させることを特徴とするロギングデータ表示プログラム。     A data analysis step that analyzes logging data composed of multiple types of time-series data created by a control device that controls various devices at the production site and calculates the degree of change in the value for each time-series data.
    A display control step of selecting a part of the time-series data based on the degree of change of the value for each time-series data and displaying it on the display unit.
    A logging data display program characterized by having a computer execute.
  2. 　前記表示制御ステップでは、前記変化度が大きいものから順番に、予め定められた数の前記時系列データを選択する、
    　ことを特徴とする請求項１に記載のロギングデータ表示プログラム。     In the display control step, a predetermined number of the time-series data is selected in order from the one having the largest degree of change.
    The logging data display program according to claim 1.
  3. 　前記表示制御ステップでは、選択した複数の前記時系列データのそれぞれをグラフ化して前記表示部に同時に表示させる、
    　ことを特徴とする請求項１または２に記載のロギングデータ表示プログラム。     In the display control step, each of the plurality of selected time-series data is graphed and displayed on the display unit at the same time.
    The logging data display program according to claim 1 or 2.
  4. 　前記表示部に表示させる時系列データを変更する変更操作を受け付ける操作受付ステップ、
    　を前記コンピュータに実行させ、
    　前記表示制御ステップでは、前記データ解析ステップで算出した前記変化度を、前記操作受付ステップで前記変更操作を受け付ける際に前記表示部に表示させる、
    　ことを特徴とする請求項１から３のいずれか一つに記載のロギングデータ表示プログラム。     An operation reception step that accepts a change operation for changing the time series data displayed on the display unit,
    To the computer
    In the display control step, the degree of change calculated in the data analysis step is displayed on the display unit when the change operation is received in the operation reception step.
    The logging data display program according to any one of claims 1 to 3, wherein the logging data display program is characterized.
  5. 　前記操作受付ステップで前記変更操作を受け付けた場合、前記表示制御ステップでは、受け付けた前記変更操作の内容に従い、前記表示部に表示させる時系列データを変更する、
    　ことを特徴とする請求項４に記載のロギングデータ表示プログラム。     When the change operation is received in the operation reception step, the display control step changes the time series data to be displayed on the display unit according to the contents of the received change operation.
    The logging data display program according to claim 4.
  6. 　生産現場の各種装置を制御する制御装置で作成された、複数種類の時系列データで構成されるロギングデータを解析して前記時系列データごとに値の変化度を算出するデータ解析部と、
    　前記時系列データごとの値の変化度に基づいて前記時系列データの一部を選択して表示部に表示させる表示制御部と、
    　を備えることを特徴とするロギングデータ表示装置。     A data analysis unit that analyzes logging data composed of multiple types of time-series data created by a control device that controls various devices at the production site and calculates the degree of change in the value for each time-series data.
    A display control unit that selects a part of the time-series data based on the degree of change in the value for each time-series data and displays it on the display unit.
    A logging data display device comprising.
  7. 　ロギングデータ表示装置がロギングデータを表示するロギングデータ表示方法であって、
    　生産現場の各種装置を制御する制御装置で作成された、複数種類の時系列データで構成されるロギングデータを解析して前記時系列データごとに値の変化度を算出するデータ解析ステップと、
    　前記時系列データごとの値の変化度に基づいて前記時系列データの一部を選択して表示部に表示させる表示制御ステップと、
    　を含むことを特徴とするロギングデータ表示方法。     A logging data display method in which the logging data display device displays logging data.
    A data analysis step that analyzes logging data composed of multiple types of time-series data created by a control device that controls various devices at the production site and calculates the degree of change in the value for each time-series data.
    A display control step of selecting a part of the time-series data based on the degree of change of the value for each time-series data and displaying it on the display unit.
    A logging data display method characterized by including.
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