JP2009075633A - Programmable display unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a programmable display unit for easily and efficiently referring to a plurality of different types of time-sequentially managed information such as an alarm, logging, and operation log. <P>SOLUTION: This programmable display unit is provided with a recording means for recording the plurality of state information of connected equipment as time series; a plurality of display function processing means for controlling the display of the recorded state information in a format corresponding to each characteristics of the state information; and a display means for displaying the state information under the control of the display function processing means. The display function processing means makes the display means display the state information based on the information of time as the object of display among the state information, and designates the information of time which the display means is made to display by the display function processing means among the state information. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a programmable display.

  The programmable display has a function (display object) that stores system states (hereinafter collectively referred to as logs) such as alarms, logging, and operation logs as time series and displays them in a table or graph. In such a programmable display device, a method has been proposed in which an alarm is associated with a historical trend graph that graphs the result of logging, and a log at the time of alarm occurrence is simultaneously viewed (for example, Patent Document 1). , See Patent Document 2).

JP 2003-337621 A JP 2004-341598 A

  However, in the above conventional method for associating an alarm with a historical trend graph, it is assumed that the processing is internally performed by a program prepared in advance, which is a problem peculiar to a programmable display “user (screen designer). ) Is not shown "how to design" freely.

  On the other hand, the user of the programmable display can monitor the status of the device near the time when the alarm occurred in a device that detects an alarm when a certain condition is met while monitoring the status of the device such as the temperature and pressure of the device. There is a desire to freely design a screen for analyzing the cause of the occurrence of an alarm by confirming with a graph or confirming an operation on the system.

  However, although the function of the conventional programmable display was able to browse the past log by scroll operation etc. for every display function, there was no cooperation between functions. That is, when the log before and after the occurrence of the alarm is viewed as a graph, the alarm display and the historical trend graph that displays the logging log cannot be linked. For this reason, for example, when trying to check the log before and after the alarm occurrence time in the historical trend graph, the operator switches to the display of the historical trend graph (the time series information of the system status collected by logging), and the operator manually We had to find and display the time we wanted to pay attention to, and the work was complicated.

  The present invention has been made in view of the above, and is a programmable display capable of easily and efficiently referring to different types of information managed in time series such as alarms, logging, and operation logs. The purpose is to obtain a vessel.

  In order to solve the above-described problems and achieve the object, a programmable display according to the present invention includes a recording unit that records a plurality of state information of connected devices as a time series, and the recorded state information is the state. A plurality of display function processing means for performing display control in a format corresponding to each characteristic of information; and display means for displaying the status information under the control of the display function processing means. The status information is displayed on the display means based on the time information to be displayed among the status information, and the other display function processing means of the status information is displayed on the display means. It is characterized in that information can be specified.

  According to the present invention, a plurality of display function processing means are linked to each other so as to be linked in an easy and reliable manner from a status display controlled by one display function processing means to a status display controlled by another display function processing means. There is an effect that can be switched.

  Embodiments of a programmable display device according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited to the following description, In the range which does not deviate from the summary of this invention, it can change suitably.

Embodiment.
FIG. 1 is a diagram showing a schematic configuration of a control system according to an embodiment of the present invention. A control system 10 according to the present embodiment is a control system used for controlling an apparatus, and includes a programmable display 100 and a programmable logic controller (PLC: Programmable Logic Controller, hereinafter referred to as PLC) connected to the programmable display. 200 and controlled devices 301, 302, and 303 connected to the PLC and controlled by the PLC.

  FIG. 2 is a diagram for explaining a main configuration in the programmable display 100 and the PLC 200 according to the present embodiment. The programmable display 100 includes a display screen 101 with a touch panel, an operation input processing unit 102, a user data processing unit 103, an internal device 104, a nonvolatile memory 105, a recording medium 106, and a communication processing unit 107. Prepare.

  The display screen 101 with a touch panel has both functions of a display unit and an input unit, displays graphics and characters, detects an operation part of the operator on the display screen, and displays programmable information corresponding to the operation part. Input to the device 100. The operation input processing unit 102 determines input information from the display screen 101 with a touch panel and sends the input information to the user data processing unit 103.

  In the present specification, the operator means a person who operates the programmable display device 100. Further, in this specification, the user means a screen designer who designs the screen of the programmable display device 100.

  The internal device 104 is a storage area that a user (screen designer) can freely store and refer to and use for control. The internal device 104 includes “display time storage device 131”, “display time designation device 132”, “group storage device 133”, “display target group” used for displaying and controlling time-series data such as alarms, logging, and operation logs. Designated device 134 ".

  The “display time storage device 131” stores the instruction (selection) time of time series data (for example, alarm) instructed (selected) by external input (for example, cursor selection on the display screen 101 with a touch panel). The “display time designation device 132” stores a designated time of time series data (for example, alarm) to be searched and displayed when a predetermined trigger is established.

  “Group storage device 133” is a group attribute (eg, an additional attribute such as an apparatus number) of time-series data (eg, alarm) designated (selected) by external input (eg, cursor selection on display screen 101 with a touch panel)) Is stored. The “display target group designating device 134” stores group attributes of time-series data (for example, a graph) to be searched and displayed when a predetermined trigger is established.

  Here, with reference to FIG. 3, the group attribute in this invention is demonstrated with the example which groups an alarm according to the apparatus monitored with the programmable display 100. FIG. FIG. 3 is a diagram showing an example of group attributes in the present invention. In the example shown in FIG. 3, for example, when there are “A error”, “B error”, “C error”, and “D error” as alarm display, the group of A error is “1”, and the historical trend graph is displayed. The graph displayed by the function is “device 1”, the B error group is “1”, and the graph displayed by the historical trend graph display function is “device 1”. The C error group is “2”, the graph displayed by the historical trend graph display function is “device 2”, the D error group is “3”, and the graph displayed by the historical trend graph display function is “device 3”. is there. These pieces of information are used as group attributes.

  In the example illustrated in FIG. 3, for example, regarding “device 1”, the current value of pressure is “D100” in the internal device 104, the current value of temperature is “D101”, and the current value of humidity is “D102”. Is set to be recorded. Similarly, regarding “device 2”, the current pressure value is recorded in “D200” in the internal device 104, the current temperature value is recorded in “D201”, and the current humidity value is recorded in “D202”. For “device 3”, the current pressure value is recorded in “D300” in the internal device 104, the current temperature value is recorded in “D301”, and the current humidity value is recorded in “D302”. Is done.

  Even in the case of operation logs and historical trend graphs, it is not always necessary to specify a group. For example, when the PLC controls only one device, the grouping is not necessary.

  These “display time storage device 131”, “display time designation device 132”, “group storage device 133”, and “display target group designation device 134” are prepared for each display object (function). That is, the alarm display function, the historical trend graph display function, and the operation log display function are prepared.

  The “display time storage device 131”, “display time designation device 132”, “group storage device 133”, and “display target group designation device 134” are set according to setting information that describes settings related to the display screen of the programmable display 100. Identified.

  The non-volatile memory 105 is a storage unit that stores “setting information” that describes settings related to the display screen of the programmable display device 100, such as display screen layout and logging, created by a user (screen designer). Setting information is freely set by a user (screen designer) by software (application) provided in a personal computer or the like.

  Here, the setting information in the present invention will be described with reference to FIG. As shown in FIG. 4A, in each alarm display on the alarm list display screen of the alarm (ID = 1), the items and set values are set as shown in FIG. 4C. ing. For example, in the item “display time designation device”, the device: D1000 is set as a set value. As shown in FIG. 4E, items and set values are also set as a set in the touch switch “trend” 401 displayed on the alarm list display screen.

  As shown in FIG. 4B, on the historical trend graph (ID = 2) display screen, items and set values are set as shown in FIG. 4D. For example, in the item “display time designation device”, the device: D2000 is set as a set value. By freely setting such setting conditions, various screen display functions can be linked freely and easily.

  The recording medium 106 is a removable storage means such as a CF (Compact Flash, registered trademark) card that can store and refer to data (log information) collected by functions such as alarm, logging, and operation log. Note that the recording medium 106 does not need to be detachable and may be a built-in type. The communication processing unit 107 communicates with an external device (in this case, a PLC) and writes, for example, a device of the external device (PLC). Further, the communication processing unit 107 collects data (log information) collected by functions such as alarm, logging, and operation log under the control of the user data processing unit 103.

  The user data processing unit 103 performs screen display control, alarms, logging, operation logs, and other backgrounds in accordance with the contents of the setting information stored in the nonvolatile memory 105 and the input information from the operation input processing unit. The data collection processing and the writing to the nonvolatile memory 105 are controlled.

  As shown in FIG. 5, the user data processing unit 103 includes an alarm display function processing unit 111, a historical trend graph display function processing unit 112, an operation log display function processing unit 113, and a device data copy processing unit 114. Prepare. FIG. 5 is a diagram for explaining the configuration of the user data processing unit 103. The alarm display function means a function for displaying a list of alarms collected by the programmable display 100 as a part of the user data processing unit 103 of the programmable display 100. Further, the historical trend graph display function means a function of displaying a system state log collected by the programmable display 100 in a graph format as a part of the user data processing unit 103 of the programmable display 100. The operation log display function means a function for displaying the operation contents of the operator collected by the programmable display 100 as a part of the user data processing unit 103 of the programmable display 100.

  In the user data processing unit 103, the alarm display function processing unit 111 performs alarm display control. The alarm display function processing unit 111 includes a display time designation device monitoring unit 111a, a display time storage device output unit 111b, and a group storage device output unit 111c. The display time designation device monitoring unit 111a monitors the display time designation device 132 and performs display control processing of an alarm (event).

  The display time storage device output unit 111b outputs (stores) the time information of the information selected by the operator to the display time storage device 131. The group storage device output unit 111c outputs (stores) group attribute (additional attribute) information of information (for example, alarm) selected by the operator to the group storage device 133.

  The historical trend graph display function processing unit 112 performs processing for graphing data collected by logging. The historical trend graph display function processing unit 112 includes a display time designation device monitoring unit 112a, a display time storage device output unit 112b, and a display target group designation device monitoring unit 112c.

  The display time designation device monitoring unit 112a monitors the display time designation device 132 and performs alarm (event) display control processing. The display time storage device output unit 112b outputs (stores) the time information of the information selected by the operator to the display time storage device 131. The display target group designation device monitoring unit 112c specifies information to be graphed (which information of the system is to be displayed in a graph).

  The operation log display function processing unit 113 performs processing for displaying the operation content of the operator. The operation log display function processing unit 113 includes a display time designation device monitoring unit 113a and a display time storage device output unit 113b. The display time designation device monitoring unit 113a monitors the display time designation device 132 and performs display control processing of the operation log. The display time storage device output unit 113b outputs (stores) the time information of the information selected by the operator to the display time storage device 131.

  The device data copy processing unit 114 copies data to another device between the devices in the internal device 104. For example, when switching from the alarm display to the historical trend graph display in the example shown in FIG. 4, the value of the display time storage device for the alarm display function having the set value “D1050” is set to the historical trend graph having the set value “D2000”. Transfer and copy to the display time specification device for the display function. Further, the value of the group storage device for the alarm display function having the set value “D1100” is transferred to the display target group designating device for the historical trend graph display function having the set value “D2100” and copied. For example, when switching from the historical trend graph display to the alarm display in the example shown in FIG. 4, the value of the display time storage device for the historical trend graph display function, which is the setting value “D2050”, is set to the setting value “D1000”. Transfer and copy to a display time specification device for an alarm display function.

  Actually, there are processing units that perform processing of other objects (functions) such as numerical display, numerical input, touch switch, lamp, etc. in addition to these, but since they are not directly related to the present invention, Description is omitted.

  The PLC 200 includes a “display time storage device 201”, a “display time designation device 202”, a “group storage device 203”, and a “display target group designation device 204”. Those devices having the same name, but having different signs, are provided in the internal device 104 as “display time storage device 131”, “display time designation device 132”, “group storage device 133”, “display target group designation device 134”. And have the same function.

  For example, the “display time storage device 201” of the PLC 200 and the “display time storage device 131” provided in the internal device 104 have the same function, and are instructed (selected) by external input (for example, cursor selection on the display screen 101 with a touch panel). The designated (selected) time of the time-series data (for example, alarm) is stored. Therefore, here, a case has been described in which both the internal device 104 and the PLC are provided with devices having the same function, but either the internal device 104 or the PLC may be provided.

  The PLC 200 includes a device data copy processing unit 205. The device data copy processing unit 205 has the same function as the device data copy processing unit 114. That is, the device data copy processing unit 114 copies data between devices in the internal device 104 to another device, whereas the device data copy processing unit 205 separates data between devices in the PLC 200. To other devices.

  Next, the operation of the programmable display device 100 according to the present embodiment configured as described above will be described with reference to FIG. FIG. 6 is a diagram for explaining a log jump function in the programmable display device 100. Here, the operation will be described by taking the cooperation of alarm display and historical trend graph display as an example.

  First, the programmable display 100 displays the collected alarm occurrence history, that is, a list of alarms on the display screen 101 with a touch panel. Next, the operator touches and selects an alarm to be noted from the alarm list displayed on the display screen 101 with the touch panel. The display screen 101 with a touch panel displays a cursor on the selected alarm to select the alarm, and sends information indicating that the alarm has been selected to the operation input processing unit 102 as input information.

  The operation input processing unit 102 determines the input information of the selected alarm sent from the display screen 101 with the touch panel, and sends the input information to the user data processing unit 103.

  In the user data processing unit 103, the alarm display function processing unit 111 stores the group attribute of the selected alarm in a group storage device for the alarm display function (herein, the group storage device 133AL). When the group attribute of the selected alarm is stored in the group storage device 133AL, the device data copy processing unit 114 displays the group attribute of the alarm stored in the group storage device 133AL for the historical trend graph display function. Copy to the group designation device (here, the display target group designation device 134HT). If the group storage device 133AL and the display target group designation device 134HT are set to the same device according to the setting information, this copying process is not necessary.

  Also, the alarm display function processing unit 111 stores the time of occurrence of the selected alarm in a display time storage device (here, the display time storage device 131AL). When the occurrence time of the selected alarm is stored in the display time storage device 131AL, the device data copy processing unit 114 uses the alarm time stored in the display time storage device 131AL for the historical trend graph display function. Copy to the display time designation device (here, the display time designation device 132HT). If the display time storage device 131AL and the display time designation device 132HT are set to the same device according to the setting information, this copying process is unnecessary.

  Next, the operator performs an operation for displaying the state of the system at the selected alarm occurrence time in a historical trend graph. For example, the operator touches and selects a “trend” switch 401 which is a touch switch displayed on the display screen 101 with a touch panel as shown in FIG. 4 and displays an historical trend graph. As a result, historical trend graph display instruction information is input to the historical trend graph display function processing unit 112 of the user data processing unit 103.

  In the above description, when the group attribute of the selected alarm is stored in the group storage device 133AL, the case where the alarm group attribute stored in the group storage device 133AL is copied to the display target group designation device 134HT will be described. However, when the “trend” switch 401 is touched (selected), the group attribute of the alarm may be copied to the display target group designation device 134HT.

  Similarly, in the above, when the alarm occurrence time selected is stored in the display time storage device 131AL, the alarm occurrence time stored in the display time storage device 131AL is copied to the display time designation device 132HT. However, when the “trend” switch 401 is touched (selected), the alarm occurrence time may be copied to the display time designation device 132HT.

  Next, the historical trend graph display function processing unit 112 refers to the display target group specifying device 134HT when a predetermined trigger is established (when the display instruction information of the historical trend graph is input here), and displays the graph. The target log information (actually the device monitored by the logging function) is searched and selected from the recording medium 106. Then, the log information to be displayed on the graph (here, logging log information) is selected.

  Next, the historical trend graph display function processing unit 112 searches and selects the log information at the time specified by the display time specifying device 132HT from the recording medium 106 among the log information to be displayed in the selected graph. Then, based on the designated time, the log information of the time before and after that is graphed in a predetermined range and displayed on the display screen 101 with a touch panel. At this time, the historical trend graph display function processing unit 112 highlights the log of the time specified by the display time specifying device 132HT on the display screen 101 with the touch panel.

  Further, the historical trend graph display function processing unit 112, if there is no log at the time specified by the display time specifying device 132HT among the log information to be displayed in the graph that has been selected, before the specified time. It is also possible to select and display any one of the following log, a log after a specified time, and a log in a predetermined range closest to the specified time.

  On the other hand, when switching from the historical trend graph display state to the alarm display, the operator uses the scroll switch 403 displayed on the display screen 101 with a touch panel as shown in FIG. select. For example, in FIG. 4, the time is designated with the cursor of the historical trend graph. Display screen 101 with a touch panel is in a selected state with the time of the cursor as a specified time, and sends information indicating that this time has been selected to operation input processing unit 102 as input information.

  The operation input processing unit 102 determines the input information of the selected time sent from the display screen 101 with the touch panel, and sends the input information to the user data processing unit 103.

  In the user data processing unit 103, the historical trend graph display function processing unit 112 stores the selected time in a display time storage device (in this case, the display time storage device 131HT). When the selected time is stored in the display time storage device 131HT, the device data copy processing unit 114 displays the alarm stored in the display time storage device 131HT as a display time designation device for display function (here, To the display time designation device 132AL). If the display time storage device 131HT and the display time designation device 132AL are set to the same device according to the setting information, this copying process is unnecessary.

  Next, the operator performs an operation for displaying system alarms before and after the selected time. For example, the operator touches an “alarm” switch 402 which is a touch switch displayed on the display screen 101 with a touch panel as shown in FIG. 4 and is an execution instruction switch for displaying a list of alarms. As a result, the alarm display instruction information is input to the alarm display function processing unit 111 of the user data processing unit 103.

  In the above description, when the selected time is stored in the display time storage device 131HT, the case where the time stored in the display time storage device 131HT is copied to the display time designation device 132AL has been described. When the “alarm” switch 402 is touched (selected), the time stored in the display time storage device 131HT may be copied to the display time designation device 132AL.

  The alarm display function processing unit 111 displays log information (actually a device monitored by the logging function) to be displayed by alarm display when a predetermined trigger is established (in this case, when alarm display instruction information is input). Search and select from the recording medium 106. Then, the alarm display target log information is selected.

  Next, the log information closest to the time specified by the display time specifying device 132AL is searched and selected from the recording medium 106 among the log information to be displayed in the alarm in the selected state. Then, based on the designated time, the log information of alarms at times before and after the designated time is displayed on the display screen 101 with a predetermined range touch panel. The search for log information for the specified time may be any of the nearest neighbor of the designated time, the nearest neighbor after the designated time, and the nearest neighbor before the designated time, depending on the application.

  By associating the alarm log and the logging log, which are information managed in time series, by linking the alarm display and the historical trend graph display, the alarm display and the historical trend graph display are linked. In addition, the display can be easily and reliably switched from the historical trend graph display to the alarm display.

  The linkage between the alarm display and the operation log display and the linkage between the historical trend graph display and the operation log display are the same processing as described above, and the display can be easily and reliably switched between the respective displays.

  Next, a typical usage method using the link function between the display screens in the control system according to the present embodiment will be described. In addition, since the detailed process in the programmable display 100 is the same as the process demonstrated above, it abbreviate | omits here.

(Check system status before and after alarm occurrence)
(1) First, the programmable display 100 displays an alarm occurrence history, that is, an alarm list display screen on the display screen 101 with a touch panel as shown in FIG.
(2) Next, the operator touches and selects the alarm to be analyzed from the alarm occurrence history displayed on the display screen 101 with the touch panel.
(3) Next, the operator uses a touch switch displayed on the display screen 101 with a touch panel as shown in FIG. Yes, the “trend” switch 401 that is an execution instruction switch to be displayed in the historical trend graph is touched (selected).
(4) The programmable display 100 searches for the time of the log displaying the historical trend graph using the occurrence time of the selected alarm as a search key, triggered by the selection of the “trend” switch 401, and displays this time Based on the reference, the log information of the time before and after is graphed in a predetermined range and displayed on the display screen 101 with a touch panel as shown in FIG.
(5) The operator confirms the historical trend graph display result and estimates the system status.

  As a result, when an alarm occurs in the control system, the state of the control system before and after the occurrence of the alarm (for example, parameters such as the temperature and pressure of the device) is confirmed, and the cause of the alarm is estimated from the degree of change, Usage of the programmable display can be facilitated.

(Check system status before and after alarm occurrence (displays different parameters for each alarm type))
(1) First, the programmable display 100 displays an alarm occurrence history, that is, an alarm list display screen on the display screen 101 with a touch panel as shown in FIG.
(2) Next, the operator touches and selects the alarm to be analyzed from the alarm occurrence history displayed on the display screen 101 with the touch panel.
(3) Next, the operator uses a touch switch displayed on the display screen 101 with a touch panel as shown in FIG. 8A in order to confirm the state of the control system before and after the time of occurrence of the selected alarm. Yes, the “trend” switch 401 that is an execution instruction switch to be displayed in the historical trend graph is touched (selected).
(4) The programmable display 100 displays a historical trend graph using the occurrence time of the selected alarm and the group attribute defined in the alarm as search keys, triggered by the selection of the “trend” switch 401. The log time is searched, and the log information of the time before and after that is graphed in a predetermined range based on this time, and displayed on the display screen 101 with a touch panel as shown in FIG. Here, for example, as shown in FIG. 8C, the group attribute is provided in advance for each alarm. In the example shown in FIG. 8B, for example, “Group 1” is related to display the log of “Device 1”. Further, “Group 2” displays a log of “Device 2”, and “Group 3” displays a log of “Device 3”. Further, “A error” is associated with “Group 1”, “B error” is “Group 1”, “C error” is “Group 2”, and “D error” is “Group 3”. Thus, for example, when “06/12/01 14:40 B error” is selected as an alarm to be analyzed on the alarm list display screen, the historical trend graph of the apparatus 1 is displayed.
(5) The operator confirms the historical trend graph display result and estimates the system status.

  As a result, when an alarm occurs in the control system, the state of the control system before and after the occurrence of the alarm (for example, parameters such as the temperature and pressure of the device) is confirmed, and the cause of the alarm is estimated from the degree of change, Usage of the programmable display can be facilitated. At this time, by using group attributes, the system status can be checked automatically according to the selected alarm when the devices to be noticed are different for each alarm, such as when monitoring multiple devices and systems simultaneously. Is possible.

(Confirm operation details before alarm occurrence)
(1) First, the programmable display 100 displays an alarm occurrence history, that is, an alarm list display screen on the display screen 101 with a touch panel as shown in FIG.
(2) Next, the operator touches and selects the alarm to be analyzed from the alarm occurrence history displayed on the display screen 101 with the touch panel.
(3) Next, the operator is a touch switch displayed on the display screen 101 with a touch panel as shown in FIG. 7A in order to confirm the operation performed before the time of occurrence of the selected alarm. Then, the “operation log” switch 404 that is an execution instruction switch for displaying the operation log is touched (selected).
(4) The programmable display device 100 searches for the time of the operation log to be displayed using the occurrence time of the selected alarm as a search key, triggered by the selection of the “operation log” switch 404, as shown in (c) of FIG. ), A list of operation logs is displayed on the display screen 101 with a touch panel.
(5) The operator checks the list of operation logs, and performs the operation that caused the alarm and the operator.

  As a result, when an alarm is generated in the control system, it is possible to facilitate the use of the programmable display device such as checking the operation content before the alarm occurrence and verifying the cause in order to verify the operation that caused the alarm. .

(Check the operation details of the system status change thousand)
(1) First, the operator finds a place where the system state seems to be abnormal in the historical trend graph.
(2) Next, the operator performs an operation of displaying a cursor at a time on the historical trend graph that seems to be abnormal.
(3) Next, in order to confirm the operation performed before the time selected by the cursor display, the operator touches displayed on the display screen 101 with the touch panel as shown in FIG. The “operation log” switch 404, which is a switch and is an execution instruction switch for displaying an operation log, is touched (selected).
(4) Using the selected time as a search key, the programmable display device 100 searches for the time of the operation log to be displayed using the selection of the “operation log” switch 404 as a trigger. As shown, a list of operation logs is displayed on the display screen 101 with a touch panel.
(5) The operator checks the list of operation logs, and performs the operation that caused the alarm and the operator.

  As a result, although the alarm has not occurred, the operation performed before the abnormal change of the system status, which is considered to be the occurrence of the system abnormality, is confirmed, for example, when the system is moving differently. It is possible to facilitate the use of the programmable display device such as pursuing.

  In the above description, the case where the “display time storage device 131”, “display time designation device 132”, “group storage device 133”, and “display target group designation device 134” included in the internal device 104 are used has been described. Instead of these, the “display time storage device 201”, “display time designation device 202”, “group storage device 203”, and “display target group designation device 204” of the PLC 200 may be used. In this case, the communication processing unit 107 is used to communicate with the programmable display device 100 for processing. Even in this case, the same effect as described above can be obtained.

  As described above, according to the programmable display device 100 according to the present embodiment, it is possible to freely associate different types of information managed in time series. That is, the user can freely and easily associate different types of information managed in time series. Thereby, in the programmable display device 100 according to the present embodiment, different types of information display functions (for example, alarm display functions and historical trend graph display functions) are linked to display different types of information (for example, alarm displays). From the historical trend graph display to the historical trend graph display and from the historical trend graph display to the alarm display) can be easily and reliably switched. Therefore, the operator can easily switch to a desired display function screen without performing a complicated operation.

  As described above, the programmable display according to the present invention is useful for checking and analyzing the state of a system managed in time series such as alarms, logging, and operation logs.

It is a figure showing a schematic structure of a control system concerning an embodiment of the invention. It is a figure for demonstrating the main structures in the programmable display and PLC concerning this Embodiment. It is a figure which shows an example of the group attribute in the programmable display concerning embodiment of this invention. It is a figure which shows an example of the setting information in the programmable display concerning embodiment of this invention. It is a figure for demonstrating the structure of the user data processing part in the programmable display concerning embodiment of this invention. It is a figure for demonstrating the jump function of the log in the programmable display concerning embodiment of this invention. It is a figure explaining the typical usage method using the cooperation function between the display screens in the programmable display concerning embodiment of this invention. It is a figure explaining the typical usage method using the cooperation function between the display screens in the programmable display concerning embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Control system 100 Programmable display 101 Display screen 102 Operation input processing part 103 User data processing part 104 Internal device 105 Non-volatile memory 106 Recording medium 107 Communication processing part 111 Alarm display function processing part 111a Display time designation device monitoring part 111b Display time Storage device output unit 111c Group storage device output unit 112 Historical trend graph display function processing unit 112a Display time designation device monitoring unit 112b Display time storage device output unit 112c Display target group designation device monitoring unit 113 Operation log display function processing unit 113a Display time Designated device monitoring unit 113b Display time storage device output unit 114 Device data copy processing unit 131 Display time storage device 131AL Display time storage device 131HT Display time storage device 132 Display time specification device 132AL Display time specification device 132HT Display time specification device 133 Group storage device 133AL Group storage device 134 Display target group specification device 134HT Display target group specification device 201 Display time storage device 202 Display time specification device 203 Group Storage Device 204 Display Target Group Designating Device 205 Device Data Copy Processing Unit 301 Controlled Device

Claims (9)

Recording means for recording a plurality of state information of connected devices as a time series,
A plurality of display function processing means for performing control to display the recorded state information in a format according to each characteristic of the state information;
Display means for displaying the status information under the control of the display function processing means;
With
The display function processing unit causes the display unit to display the state information based on time information to be displayed among the state information, and another display function processing unit of the state information displays the display. The time information to be displayed on the means can be specified,
Programmable display characterized by. A display time storage device for storing information on the time to be displayed is provided inside the connected device or its own device;
The programmable display device according to claim 1. The plurality of display function processing means, based on information about the time to be displayed stored in a display time storage device provided in the connected device or the own device when a predetermined condition is satisfied Retrieving the status information from the recording means and displaying it on the display means;
The programmable display according to claim 2. An attribute information storage device for storing attribute information of time information to be displayed among the status information is provided inside the connected device or the own device;
The programmable display according to claim 2. The plurality of display function processing means controls the display of the state information on the display means based on the time information to be displayed and the attribute information among the state information, and the display function processing means performs the display on the display function processing means. Control of the time and the attribute information to be displayed in the status information in the control of other display function processing means while controlling the display of the status information in the means,
The programmable display according to claim 4. One display function processing means among the plurality of display function processing means is the display object stored in the display time storage device provided in the connected apparatus or the own apparatus when a predetermined condition is satisfied. The time information to be output to the display time storage device for controlling the state information in other display function processing means,
The programmable display according to claim 4. The other display function processing means is based on the information on the time to be displayed that is output from the one display function processing means to the display time storage device for its own means when a predetermined condition is satisfied. Controlling display of the status information on the display means;
The programmable display device according to claim 6. The plurality of display function processing means retrieves the state information from the recording means based on the time information to be displayed, and when there is no state information corresponding to the time information to be displayed, the state Among the information, it is possible to select which range to display before the time to be displayed, after the time to be displayed, or in the vicinity of the time to be displayed,
The programmable display device according to claim 1. Among the status information displayed on the display means, it is possible to highlight the status information at a selected time to be displayed,
The programmable display device according to claim 1.

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