KR102166511B1 - Field equipment - Google Patents

Abstract

An object of the present invention is to simplify a configuration for avoiding contention in a parameter setting change operation and a user's operation procedure.
The main body 1 includes a main body information processing unit that sets and changes parameters according to a request from the display units 2A and 2B, and a second unit that transmits a message sent from the display units 2A and 2B to the display units 2A and 2B of the destination. 1 Equipped with a cooperative processing unit between indicators. Each of the indicators 2A and 2B includes a parameter processing unit that requests the main body 1 to change the parameter setting according to the user's parameter setting change operation, and a message for creating a message to the user of another indicator according to the user's operation. The second display unit cooperative processing unit that sends the message created by the creation unit and the message creation unit to the body unit 1 and receives a message sent via the body unit 1 from another display unit, and a message sent from another display unit. And a display screen control processing unit.

Description

Field equipment {FIELD EQUIPMENT}

The present invention relates to a field device, and more particularly, to a field device in which a plurality of indicators are connected to a main body.

In order to enable the device to be operated from multiple locations, there are cases in which a plurality of indicators installed in multiple locations are connected to one device. When multiple indicators are operated by each operator at the same time, and the operation result of the first operator affects the operation state of the second operator, the second operator may misunderstand that the indicator or device is malfunctioning, and this is necessary. There is a risk of wasting time on missing tasks.

In order to prevent such misunderstanding, there is a method in which operations that affect the state of the device, such as parameter setting, are limited to only one indicator, and the other indicator displays only the state of the device. As a method of limiting an indicator, there are a method of specifying one indicator in advance, a method of limiting to one indicator that has started operation first, and a method of allowing another indicator to start operation when the operation is finished. For example, in the plant monitoring control device disclosed in Patent Document 1, the plant device can be operated from any of a plurality of operation input devices, but the operation by one operation input device cannot be operated from another operation input device.

However, in the conventional method, the following problems were encountered (I) to (III).

(I) Since one operable display is limited, simultaneous operation from multiple locations cannot be performed.

(Ⅱ) In the case of specifying one indicator in advance, it cannot be operated from another indicator.

(III) In the case of a method of switching an operable display, since the control of the switching becomes complicated, there is a high possibility that the switching cannot be performed correctly for some reason.

Hereinafter, a conventional problem will be described with specific examples. Here, a control system is taken as an example and demonstrated. 24 is a block diagram showing a configuration of a main body of a conventional control system. In Fig. 24, of the configuration of the main body 100 of the control system, only the configurations related to the indicators 101A and 101B are shown, and the configurations related to measurement and control of the control system and operation of the operation terminal (external device) are shown. Not. Data of the measurement and control of the controller and the state of operation of the operation terminal (external device), and parameters of the main body 100 are stored in the main body information storage unit 10.

<Example 1-1>

In the controller, an example of the operation when displaying the control amount PV, the set value SP, the operation amount MV, and the state of the indicator 101B on the indicator 101A will be described with reference to FIG. 25. The control amount PV (process amount) is data of measurement (for example, temperature measurement value), the set value SP is data of control (for example, temperature set value), and MV is data of operation of the operating stage. It goes without saying that the control object is controlled by the operation amount MV output to the control object.

In the display state of the indicators 101A and 101B, the user displays a monitor screen for monitoring the state of the main body 100, and a parameter setting screen for the user to change or check the parameters of the main body 100 There is a state that displays.

The main body information processing unit 11 receives the control amount PV from the measurement processing unit (not shown) of the main unit 100 and stores it in the main body information storage unit 10 (step S1000 in FIG. 25). The main body information processing unit 11 receives a set value SP from a control processing unit (not shown) of the main unit 100 and stores it in the main body information storage unit 10 (step S1001 in Fig. 25). The main body information processing unit 11 receives an operation amount MV from an operation stage operation processing unit (not shown) of the main unit 100 and stores it in the main body information storage unit 10 (step S1002 in FIG. 25). The main body information processing unit 11 takes out the control amount PV, the set value SP, and the operation amount MV from the main body information storage unit 10, and passes it to the communication information providing processing unit 12 (Fig. 25, step S1003). ).

On the other hand, the communication message processing unit 13B receives a communication message indicating the state of the display device 101B from the display device 101B (step S1004 in Fig. 25), analyzes the communication message, and obtains the state information of the display device 101B. A request to be updated is generated (step S1005 in Fig. 25). On the other hand, in the status information, a unique identification code is added to the display.

The communication request reception processing unit 14 receives a request for updating the status information of the display unit 101B from the communication message processing unit 13B, and passes it to the display information processing unit 15 (step S1006 in FIG. 25). Receiving this update request, the display device information processing unit 15 updates the status information of the display device 101B stored in the display information storage unit 16 (step S1007 in FIG. 25).

The display information processing unit 15 retrieves the status information of the display unit 101B from the display information storage unit 16 and passes it to the communication information providing processing unit 12 (step S1008 in FIG. 25).

The communication information providing processing unit 12 includes a control amount (PV), a set value (SP), and an operation amount (MV) received from the main body information processing unit 11, and the status of the display unit 101B received from the display information processing unit 15. The information is handed over to the communication specialized processing unit 13A (step S1009 in Fig. 25).

The communication message processing unit 13A receives the control amount (PV), the set value (SP), the operation amount (MV), and the status information of the indicator 101B from the communication information providing processing unit 12, and a communication message including these information Is created (step S1010 in Fig. 25), and the created communication message is sent to the display device 101A (step S1011 in Fig. 25).

<Example 1-2>

Next, an example of the operation when the controller 101B displays the control amount PV, the set value SP, the operation amount MV, and the state of the indicator 101A will be described. Since the flow of the processing is the same as in the case of Example 1-1, it will be described using reference numerals in FIG. 25. The main body information processing unit 11 operates in the same manner as in Example 1-1 (steps S1000 to S1003 in Fig. 25).

The communication message processing unit 13A receives a communication message indicating the state of the indicator 101A from the display device 101A (step S1004 in FIG. 25), analyzes the communication message, and updates the state information of the display device 101A. A request is generated (step S1005 in Fig. 25).

The communication request reception processing unit 14 receives a request for updating the status information of the display unit 101A from the communication message processing unit 13A, and passes it to the display information processing unit 15 (step S1006 in FIG. 25). Receiving this update request, the display information processing unit 15 updates the status information of the display unit 101A stored in the display information storage unit 16 (step S1007 in Fig. 25).

The display device information processing unit 15 retrieves the status information of the display device 101A from the display device information storage unit 16 and passes it to the communication information providing processing unit 12 (step S1008 in Fig. 25).

The communication information providing processing unit 12 includes a control amount (PV), a set value (SP), and an operation amount (MV) received from the main body information processing unit 11, and the status of the display unit 101A received from the display information processing unit 15. The information is handed over to the communication specialized processing unit 13B (step S1009 in Fig. 25).

The communication message processing unit 13B receives a control amount (PV), a set value (SP), an operation amount (MV), and status information of the indicator 101A from the communication information providing processing unit 12, and a communication message including these information Is created (step S1010 in Fig. 25), and the created communication message is sent to the display unit 101B (step S1011 in Fig. 25).

<Example 1-3>

Next, an example of the operation when the user manipulates the indicator 101A in the controller and sets the set value SP to a value of 100 will be described with reference to FIG. 26. There are many parameters in the controller, and the set value (SP), which is control data, is also a kind of parameter.

The communication message processing unit 13A receives a communication message saying that the set value SP is set to 100 from the display 101A (step S1100 in FIG. 26), analyzes the communication message, and sets the set value SP to 100. A setting request is generated (step S1101 in Fig. 26).

The communication request reception processing unit 14 receives a setting request from the communication specialization processing unit 13A, and passes the request to the main body information processing unit 11 (step S1102 in Fig. 26). Upon receiving the setting request, the main body information processing unit 11 sets the set value SP stored in the main unit information storage unit 10 to 100 (step S1103 in Fig. 26).

<Example 1-4>

Next, an example of the operation when the user manipulates the indicator 101B in the controller and sets the set value SP to a value of 100 will be described. Since the flow of processing is the same as in the case of Example 1-3, it will be described using reference numerals in FIG. 26.

The communication message processing unit 13B receives a communication message saying that the set value SP is set to 100 from the display 101B (step S1100 in FIG. 26), analyzes the communication message, and sets the set value SP to 100. A setting request is generated (step S1101 in Fig. 26). The communication request reception processing unit 14 and the main body information processing unit 11 operate in the same manner as in Example 1-3 (steps S1102 and S1103 in Fig. 26).

Fig. 27 is a block diagram showing the configuration of a conventional display device 101A. In Fig. 27, the configuration of the display 101A is shown, but the configuration of the display 101B is also the same as that of the display 101A.

<Example 2-1>

In the control system, an example of the operation when displaying the monitor screen on the display 101A will be described with reference to FIG. 28. On the monitor screen of the display 101A, the control amount PV, the set value SP, the operation amount MV, and the state of the display 101B are displayed.

The communication message processing unit 20 of the display device 101A receives a communication message indicating the state of the body unit 100 from the main unit 100 (step S1200 in Fig. 28), analyzes the communication message, and analyzes the control amount (PV). ), the state information of the main body 100 including the set value SP and the manipulated variable MV is retrieved and passed to the main body information processing unit 21 of the display 101A (step S1201 in FIG. 28). The main body information processing unit 21 of the display unit 101A stores the received state information of the main unit unit 100 in the main unit information storage unit 22 of the display unit 101A (step S1202 in Fig. 28).

Further, the communication message processing unit 20 of the display unit 101A receives a communication message indicating the state of the display unit 101B from the main unit 100 (step S1203 in FIG. 28), analyzes the communication message, and analyzes the display unit ( 101B) status information is retrieved and passed to the display device information processing unit 23 of the display device 101A (step S1204 in Fig. 28). The display unit information processing unit 23 of the display unit 101A stores the received status information of the display unit 101B in the display unit information storage unit 24 of the display unit 101A (step S1205 in Fig. 28).

On the monitor screen of the indicator 101A, a first display area for displaying the values of the control amount PV, the set value SP, and the manipulated amount MV, a second display area displaying the status of the display 101B, and There is a third display area for displaying buttons to be described later.

The screen control processing unit 25 of the display 101A reads the control amount PV, the set value SP, and the operation amount MV from the main body information storage unit 22, and displays the status information of the display unit 101B. Reading from the storage unit 24, the control amount (PV), the set value (SP), and the operation amount (MV) are provided in the first display area, the state of the indicator 101B is displayed in the second display area, and buttons to be described later are provided. 3 Screen display data for each display in the display area is generated and passed to the display processing unit 26 of the display 101A (step S1206 in Fig. 28).

The display processing unit 26 of the display 101A controls the liquid crystal display 27 according to the received screen display data. Accordingly, the control amount (PV), the set value (SP), and the operation amount (MV) are displayed in the first display area of the screen of the liquid crystal display 27 of the display 101A, and the display unit 101B is displayed in the second display area. The status is displayed, and buttons are displayed in the third display area (step S1207 in Fig. 28).

<Example 2-2>

Next, an example of an operation of sending the state information of the indicator 101A from the indicator 101A to the main body 100 in the controller will be described with reference to FIG. 29.

The screen control processing unit 25 of the display unit 101A notifies the display unit information processing unit 23 of the display unit 101A of the state of the screen of the liquid crystal display 27 (step S1300 in Fig. 29).

Upon receiving this notification, the display device information processing unit 23 generates status information of the display device 101A (step S1301 in Fig. 29), and passes the generated status information to the communication specialized processing unit 20 of the display device 101A (Fig. 29 step S1302). The communication message processing unit 20, which has received the status information, creates a communication message indicating the status of the display device 101A (Fig. 29 step S1303), and sends the created communication message to the main body 100 (Fig. 29 step S1304). .

The operation of sending the status information of the display unit 101B from the display unit 101B to the main unit 100 is the same as the operation described in FIG. 29 above.

<Example 2-3>

Next, an example of the operation when the controller displays a parameter setting screen on the display 101A will be described with reference to FIG. 30. On the parameter setting screen of the display 101A, the parameter setting values and the status of the display 101B are displayed.

The screen control processing unit 25 of the display unit 101A requests the parameter processing unit 28 of the display unit 101A to obtain a parameter setting value (step S1400 in Fig. 30). The parameter processing unit 28 of the display device 101A passes a request for acquiring a parameter setting value to the communication message processing unit 20 of the display device 101A (step S1401 in FIG. 30). The communication message processing unit 20 of the display 101A creates a communication message requesting a parameter setting value (step S1402 in FIG. 30), and sends the created communication message to the main body 100 (step S1403 in FIG. 30).

When the communication message processing unit 20 of the display unit 101A receives the communication message indicating the parameter setting value from the main unit 100 (YES in step S1404 in Fig. 30), it analyzes the communication message and sets the parameter. The value is retrieved and passed to the parameter processing unit 28 of the display device 101A (step S1405 in Fig. 30). The parameter processing unit 28 of the display unit 101A stores the received parameter setting value in the parameter storage unit 29 of the display unit 101A (step S1406 in Fig. 30).

Further, the communication message processing unit 20 of the display unit 101A receives a communication message indicating the state of the display unit 101B from the main unit 100 (step S1407 in FIG. 30), analyzes the communication message, and analyzes the display unit ( 101B) state information is retrieved and passed to the display device information processing unit 23 of the display device 101A (step S1408 in Fig. 30). The display unit information processing unit 23 of the display unit 101A stores the received status information of the display unit 101B in the display unit information storage unit 24 of the display unit 101A (step S1409 in Fig. 30).

On the parameter setting screen of the indicator 101A, a first display area for displaying a parameter setting value, a second display area for displaying the status of the indicator 101B, and a third display area for displaying buttons described later are provided. have.

The screen control processing unit 25 of the display unit 101A reads the parameter setting value from the parameter storage unit 29, reads the status information of the display unit 101B from the display unit information storage unit 24, and identifies the parameter. Screen display data for displaying the name or number of the parameter and the parameter setting value in the first display area, the status of the indicator 101B in the second display area, and buttons to be described later in the third display area. Is generated and passed to the display processing unit 26 of the display device 101A (step S1410 in Fig. 30).

The display processing unit 26 of the display 101A controls the liquid crystal display 27 according to the received screen display data. As a result, the set value of the parameter is displayed in the first display area of the screen of the liquid crystal display 27 of the display 101A, the state of the indicator 101B is displayed in the second display area, and the button is displayed in the third display area. Flow is displayed (step S1411 in Fig. 30).

The operation of displaying the parameter setting screen on the display 101B is the same as the operation described in FIG. 30 above.

Next, the liquid crystal display 27 and the touch sensor 30 of the displays 101A and 101B will be described. In the following example, the display device 101A is described, but the configuration of the display device 101B is also the same as that of the display device 101A. When the display 101A is viewed from the front, as shown in FIG. 31, there are a region in which the touch sensor 30 is disposed on the surface of the liquid crystal display 27 and a bezel 2012 surrounding them.

The display 101A displays numbers, letters, and figures on the liquid crystal display 27. Further, the display 101A displays a graphic of a button on the liquid crystal display 27, and when the touch sensor 30 detects that the vicinity of the graphic of the button is pressed, it analyzes that the button has been pressed, and performs an operation. Fig. 32 is a diagram showing button operations and screen transitions in the display device 101A.

<Example 3-1>

An example of a monitor screen displayed on the display 101A will be described. Since it is a monitor screen, the display of the screen switching button is as shown in FIG. 33, the MONI button 2020, which means a monitor screen, is a selection state of white characters on a black background, and the PARA button 2021 means parameter setting. This white background of black characters is in a non-selected state. On the monitor screen, as state information of the main body 100, each value of a control amount (PV), a set value (SP), and an operation amount (MV) is displayed.

Further, the status information 2022 of the display 101B is displayed at the bottom of the monitor screen. In the example of Fig. 33, since "HMI-B" meaning the display 101B and "Monitoring" meaning the monitor screen are displayed, it can be seen that the display 101B is displaying the monitor screen. Therefore, the user who is viewing the monitor screen of the display 101A can see that since the parameter setting operation is not performed on the display 101B, the operation does not compete even if the parameter setting operation is performed on the display 101A. have.

<Example 3-2>

Next, another example of the monitor screen displayed on the display 101A will be described. In the example of FIG. 34, as the status information 2022 of the indicator 101B displayed at the bottom of the monitor screen, "HMI-B" meaning the display 101B and "Para setting" meaning the parameter setting screen Since it is displayed, it can be seen that the indicator 101B is displaying the parameter setting screen. Therefore, the user who is looking at the monitor screen of the display 101A can see that there is a possibility that the operation may compete if the parameter setting operation is performed on the display 101A because the parameter setting operation is being performed on the display 101B. .

<Example 3-3>

Next, an example of the operation when the monitor screen of the display device 101A is switched to the parameter setting screen will be described. When the user presses the PARA button 2021 while the monitor screen is displayed on the display 101A as shown in FIG. 33, a parameter setting screen as shown in FIG. 35 is obtained (transition of 300 in FIG. 32).

Since it is a parameter setting screen, the display of the screen change button is that the MONI button (2020), which means the monitor screen, is not selected with black characters on a white background, and the PARA button (2021), which means parameter setting, is the white characters on a black background. Is in the selected state. On the parameter setting screen, the value of one parameter among a plurality of parameters is displayed. In the example of Fig. 35, the value of the set value SP, which is one of the parameters, is displayed.

In addition, on the parameter setting screen, as buttons for setting operation, a left arrow (←) button 2023 for displaying the set value of a parameter in front of one, and a right arrow (←) button for displaying the set value of the parameter in the back ( →) button 2024 and a Change button 2025 for displaying the parameter setting change screen are displayed.

Further, at the bottom of the parameter setting screen, status information 2022 of the display device 101B is displayed. In the example of Fig. 35, since "HMI-B" meaning the display 101B and "Monitoring" meaning the monitor screen are displayed, it can be seen that the display 101B is displaying the monitor screen. Therefore, the user who is viewing the parameter setting screen of the display 101A knows that because the parameter setting operation is not performed on the display 101B, the operation does not compete even if the parameter setting operation is performed on the display 101A. I can.

<Example 3-4>

Next, an example of a parameter setting change screen displayed on the display 101A will be described. When the user presses the Change button 2025 while the parameter setting screen is displayed on the display 101A as shown in FIG. 35, the parameter setting change screen as shown in FIG. 36 is displayed (transition of 301 in FIG. 32). . Here, since the set value SP has been displayed in the state of Fig. 35, it is a parameter setting change screen for changing the set value SP.

On the parameter setting change screen, a value of a parameter to be changed and a plurality of buttons called ten keys are displayed. The ten keys include a number button 2026 from "0" to "9", a decimal point button 2027, a reverse button 2028 for inverting the sign, a C button 2029 for erasing all inputs, and There are a BS button 2030 for clearing the input of, an ENT button 2031 for returning to the parameter setting screen after completing the input, and a CAN button 2032 for returning to the parameter setting screen by stopping the input.

When the user presses the ENT button 2031 or the CAN button 2032 while the parameter setting change screen is displayed on the display 101A as shown in FIG. 36, a parameter setting screen is obtained (transition of 302 in FIG. 32). Further, when the user presses the MONI button 2020 while the parameter setting screen is displayed on the display 101A, a monitor screen is obtained (transition of 303 in Fig. 32).

An example of the operation when displaying the parameter setting change screen on the display 101A will be described with reference to FIG. 37. The screen control processing unit 25 of the display 101A generates screen display data for displaying the buttons shown in Fig. 36 and passes it to the display processing unit 26 of the display 101A (step S1500 in Fig. 37). .

The display processing unit 26 of the display 101A controls the liquid crystal display 27 according to the received screen display data. Thereby, the parameter setting change screen as shown in Fig. 36 is displayed on the display 101A (Fig. 37, step S1501).

The screen control processing unit 25 of the display 101A generates screen display data in which the parameter values are changed according to the user's operation on the buttons 2026 to 2030 (steps S1502 and S1503 in Fig. 37).

The display processing unit 26 of the display 101A controls the liquid crystal display 27 according to the received screen display data. Thereby, the numerical value of the parameter to be changed to be set displayed on the parameter setting change screen is changed (step S1504 in Fig. 37).

Until the user presses the ENT button 2031 or the CAN button 2032, the processing of steps S1502 to S1504 is repeatedly executed.

When the user presses the ENT button 2031 (YES in step S1505 in Fig. 37), the screen control processing unit 25 of the display 101A transmits the parameter value after the setting change to the parameter processing unit 28 of the display 101A. Hand it over. The parameter processing unit 28 changes the numerical value of the parameter stored in the parameter storage unit 29 of the display device 101A (step S1506 in Fig. 37). Then, the parameter processing unit 28 passes the numerical values of the parameters after the setting change to the communication specialty processing unit 20 of the display unit 101A in order to notify the main unit 100 of the numerical values of the parameters.

The communication message processing unit 20 of the display 101A creates a communication message indicating the value of the parameter after the setting change (step S1507 in Fig. 37), and sends the created communication message to the main body 100 (step S1508 in Fig. 37). . Then, the screen control processing unit 25 of the display device 101A displays a parameter setting screen (step S1509 in Fig. 37).

Further, when the user presses the CAN button 2032 (YES in step S1510 in Fig. 37), the screen control processing unit 25 of the display 101A causes the parameter setting screen to be displayed without changing the parameter (Fig. 37 step S1509).

In the example of Fig. 36, it is a small liquid crystal display 27, and the display area is narrow, and the state of another display is not displayed because the remaining space is insufficient when a ten key is displayed. However, the time required to change the parameter setting is short, and when the parameter setting change is completed, the status of the other indicator is displayed by returning to the parameter setting screen or the monitor screen, which is less of a major problem. If it is a large-sized liquid crystal display 27, it is possible to display the state of another display.

As described above, in the conventional control system, a user who is viewing one display can recognize whether the state of the other display is a monitor screen or a parameter setting screen.

In some cases, the controller is provided with a locking function that states that if one indicator displays the parameter setting screen or the parameter setting change screen, the other indicator cannot transition to the parameter setting screen. In this case, the user can see the status information of other indicators and find out why the indicator he is operating does not display the parameter setting screen, and if necessary, it is possible to release the lock function.

However, in order to release the lock function, (a) go to the place where there is an indicator displaying the parameter setting screen, meet the operator of the indicator, and request the change to the monitor screen, or (b) display the parameter setting screen. One of the measures is to contact the operator of an existing display device by telephone or e-mail to request the switch to the monitor screen, or (c) to force the display displayed on the parameter setting screen into the monitor screen.

For the treatment of (a), it is necessary to go to a place where there is an indicator that displays the parameter setting screen. If the indicator is at a distant point, it takes a lot of time. If it is not possible to go to the place where the indicator is located, it is difficult to take the treatment of (a).

In the treatment of (b), it is not necessary to go to the place where the indicator displaying the parameter setting screen is present, but the operator of the indicator must be specified and contacted. If the operator cannot be specified, it is necessary to contact the operator's candidate and specify the operator. If the operator is unknown, it is difficult to take the treatment of (b).

In the treatment of (c), it is necessary to produce a specification for forcibly using another display as a monitor screen. Therefore, the operation procedure of the display becomes complicated, and the design of the hardware or software of the display becomes complicated.

When the controller does not have the above-described locking function, the user can see the status information of other indicators and recognize the possibility of contention in the operation of parameter setting. To avoid contention, (α) go to the place where the indicator displaying the parameter setting screen is located and meet the operator of the indicator to determine how to avoid contention, or (β) the operator of the indicator displaying the parameter setting screen. A method of avoiding contention is determined by contacting the customer by phone or e-mail, or (γ) the indicator displaying the parameter setting screen is forcibly turned into a monitor screen. The problems in the treatment of (α), (β), and (γ) are equivalent to those in the case where the control system has a locking function. On the other hand, the above problems similarly occur in field devices other than the control system.

[Patent Document 1] Japanese Patent Laid-Open Publication No. 8-211929

The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a field device capable of simplifying a configuration for avoiding contention in a parameter setting change operation and a user operation procedure.

The field device of the present invention includes a main body configured to perform a predetermined operation according to a set parameter, a plurality of indicators for displaying information, and a plurality of operation units provided for each of the indicators, and the main body unit includes: A body information processing unit configured to set and change the parameter according to a request, and a first inter-display cooperative processing unit configured to transmit a message sent from the indicator to a display at a destination, and each indicator includes a user's parameter setting for the operation unit. A parameter processing unit configured to request the main body unit to set and change the parameter according to a change operation; a message creation unit configured to create a message for a user of another indicator according to a user's manipulation of the operation unit; and the message creation unit A second inter-display cooperative processing unit configured to send a message created by the main unit to the main unit and to receive a message sent via the main unit from another display unit, and a screen control processing unit configured to display a message sent from the other display unit. It is characterized by.

In addition, in one configuration example of the field device of the present invention, the message creation unit is characterized in that it creates the message according to a result of a user's selection of the type of the message prepared in advance.

In addition, one configuration example of the field device of the present invention, as the type of the message, is a message asking who the person is to a user of another indicator, a message indicating who he is to a user of another indicator, and another indicator. It is characterized in that a message requesting a user of a user to make a call to himself/herself and a message requesting a user of another indicator to stop operation are prepared in advance.

In addition, in one configuration example of the field device of the present invention, the screen control processing unit, during the display of any one of a monitor screen for monitoring the state of the main body or a parameter setting screen for setting and changing the parameter, the It is characterized in that it displays a message sent from another indicator.

In addition, in one configuration example of the field device of the present invention, the main body unit includes a first display information storage unit configured to store status information of each display device, and stores the first display information by receiving status information sent from each display device. And a first display information processing unit configured to update the status information stored in the unit and send the status information stored in the first display information storage unit to each display unit, each display unit having its own status information A second display information processing unit configured to receive status information of another display unit sent to the unit and received from the main unit unit, and a second display information storage unit configured to store status information of the other display unit, the screen control processing unit And displaying status information of another display unit stored in the second display information storage unit.

According to the present invention, by installing the first inter-display cooperative processing unit in the main unit, and installing the message creating unit, the second inter-display cooperative processing unit, and the screen control processing unit in each display unit, a user who wants to operate the display is A message can be sent to the user, and it becomes possible to avoid contention for parameter setting change operation through consultation between users. Further, in the present invention, since the locking function for limiting the operation to one display becomes unnecessary, deterioration of operability due to limiting the operation can be avoided. In addition, compared to the case of installing the locking function, the operation procedure of the display can be simplified, and the design of the hardware and software of the display can be simplified.

1 is a diagram showing a connection form of a control system according to an embodiment of the present invention.
2 is a view showing another connection form of the control system according to the embodiment of the present invention.
3 is a block diagram showing a configuration of a main body of a control system according to an embodiment of the present invention.
Fig. 4 is a flowchart for explaining an operation of displaying a message from the other display on one display in the control system according to the embodiment of the present invention.
5 is a block diagram showing another configuration of a main body of a control system according to an embodiment of the present invention.
6 is a block diagram showing the configuration of an indicator of a controller according to an embodiment of the present invention.
7 is a flowchart illustrating an operation of sending a message from one indicator to the other in the controller according to the embodiment of the present invention.
8 is a flowchart illustrating an operation of displaying a message sent from one display on the other display in the controller according to the embodiment of the present invention.
9 is a diagram illustrating button operation and screen transition in a display device according to an exemplary embodiment of the present invention.
10 is a diagram showing an example of a monitor screen displayed on a display according to an embodiment of the present invention.
11 is a diagram illustrating another example of a monitor screen displayed on a display according to an embodiment of the present invention.
12 is a diagram showing an example of a parameter setting screen displayed on a display according to an embodiment of the present invention.
13 is a diagram illustrating an example of a parameter setting change screen displayed on a display according to an embodiment of the present invention.
14 is a diagram illustrating an example of a message setting screen displayed on a display according to an embodiment of the present invention.
15 is a flowchart illustrating an operation of displaying a message setting screen on a display in a controller according to an embodiment of the present invention.
16 is a diagram showing an example of a message creation screen displayed on a display according to an embodiment of the present invention.
17 is a flowchart illustrating an operation of displaying a message writing screen on a display in the controller according to an embodiment of the present invention.
18 is a diagram showing an example of a message transmission notification displayed on a display according to an embodiment of the present invention.
19 is a diagram showing an example of a message displayed on a display according to an embodiment of the present invention.
20 is a diagram illustrating another example of a monitor screen displayed on a display according to an embodiment of the present invention.
21 is a diagram illustrating another example of a monitor screen displayed on a display according to an embodiment of the present invention.
22 is a diagram illustrating another example of a monitor screen displayed on a display according to an embodiment of the present invention.
Fig. 23 is a block diagram showing a configuration example of a computer that realizes a main body and a display of a control system according to an embodiment of the present invention.
24 is a block diagram showing the configuration of the main body 100 of a conventional control system.
Fig. 25 is a flowchart for explaining an operation of displaying a control amount, a set value, an operation amount, and a state of the other display unit on a monitor screen of one display in a conventional control system.
26 is a flowchart illustrating an operation of setting parameters in a conventional control system.
27 is a block diagram showing the configuration of a conventional display.
28 is a flowchart illustrating an operation of displaying a monitor screen on a display in a conventional control system.
29 is a flowchart for explaining an operation of sending a state of an indicator to a main body in a conventional control system.
30 is a flowchart illustrating an operation of displaying a parameter setting screen on a display in a conventional control system.
31 is a front view of a conventional display.
Fig. 32 is a diagram showing button operation and screen transition in a conventional display device.
33 is a diagram showing an example of a conventional monitor screen.
34 is a diagram showing another example of a conventional monitor screen.
35 is a diagram showing an example of a conventional parameter setting screen.
36 is a diagram showing an example of a conventional parameter setting change screen.
37 is a flowchart illustrating an operation of displaying a parameter setting change screen on a display in a conventional control system.

[Principle of the invention]

In the present invention, by sending a message to another display, it is possible to achieve contact with the user of the other display. Further, in the present invention, by giving an identification code to each indicator, the indicator can distinguish between itself and another. Compared to the case where the identification code is not assigned to the display, the control program of the display becomes a little complicated, but convenience can be improved.

[Example]

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a diagram showing a connection form of a control system according to the present embodiment. In the example of FIG. 1, two indicators 2A and 2B are connected to one main body 1. The main body 1 performs measurement (input processing), control (operation processing), and operation stage operation (output processing). The user monitors the state of the main body 1 by looking at the screen of the indicator 2A or 2B, and sets the parameters of the main body 1 by operating the indicator 2A or 2B. The main body 1 and the indicators 2A and 2B are connected by communication signal lines 3A and 3B of independent systems, respectively. It is also possible to connect three or more indicators to the main body 1, but the main body 1 needs the same number of communication ports as the indicators connected to the main body 1.

2 is a diagram showing another connection form of the control system according to the present embodiment. In the example of FIG. 2, four indicators 2A, 2B, 2C, and 2D are connected to one main body 1 by one communication signal line 3. In this example, one communication port is required for the main body 1.

The present invention is applicable to either of the connection types in Figs. 1 and 2. Further, it is also possible to connect the main body and the display device through a wireless line instead of a communication signal line. Therefore, in the following description, the connection form between the main body and the display is not limited. Further, in the present embodiment, a case where there are two displays will be described, but three or more displays may be used.

Fig. 3 is a block diagram showing the configuration of the main body 1 of the control system of the present embodiment, and the same reference numerals denote the same configuration as in Fig. 24. The main body 1 includes a main body information storage unit 10, a main body information processing unit 11, a communication information provision processing unit 12, a communication specialization processing unit 13A, 13B, and a communication request reception processing unit 14. Wow, a display information processing unit 15, a display information storage unit 16, and an inter-display cooperative processing unit 17 are provided.

As in the prior art, the data of the state of measurement and control of the controller and the operation of the operation terminal (external device) [control amount (PV), set value (SP), operation amount (MV)), and parameters of the main body 1 are the main body information It is stored in the storage unit 10. As is well known, the operation stage operation processing unit (not shown) of the main body 1 calculates the operation amount MV based on the control amount PV and the set value SP. It goes without saying that the control object is controlled by the operation amount MV output to the control object.

In the present embodiment, the inter-display cooperative processing unit 17 is added to the conventional control system to process messages between the display units 2A and 2B. In addition, state information and requests of the display in the prior art are sent via the inter-display cooperative processing unit 17, but the display information processing unit 15 performs storage or retrieval in the display information storage unit 16 as in the prior art. .

<Example 4-1>

Next, an example of the operation when displaying a message from the display unit 2B on the display unit 2A in the control system of the present embodiment will be described with reference to Fig. 4. Types of messages between indicators include WHO, IAM, TEL, and QUIT.

WHO is a question message asking who is the user who is monitoring or manipulating other indicators.

IAM is a response message that reveals who it is to a user who is monitoring or manipulating another indicator by sending the user's own identification (ID).

The TEL is a request message requesting a user who is monitoring or operating another indicator to make a phone call by sending the user's own phone number.

QUIT is a request message that requests a user operating another indicator to stop the operation.

On the other hand, each message contains the identification code of the indicator of the origin and the identification code of the indicator of the destination.

When the communication message processing unit 13B receives a communication message including a message from the display device 2B to the display device 2A (Fig. 4 step S100), the communication message is analyzed and the message is retrieved, and the display device 2B is sent. -The display unit 2A generates a display request for a received message (step S101 in Fig. 4).

The communication request reception processing unit 14 receives the message display request generated by the communication professional processing unit 13B, and passes it to the inter-display cooperation processing unit 17 (step S102 in FIG. 4). The inter-display cooperation processing unit 17 passes the message display request transmitted from the communication request reception processing unit 14 to the communication information provision processing unit 12 in order to transmit the message sent from the display unit 2B to the destination display unit 2A. Give (Fig. 4 step S103). The communication information providing processing unit 12 passes this message display request to the communication specialization processing unit 13A corresponding to the destination of the message (step S104 in Fig. 4).

When receiving the message display request from the communication information providing processing unit 12, the communication message processing unit 13A creates a communication message including the message of the display unit 2B originating-display unit 2A and receiving (Fig. 4 step S105). , The created communication message is sent to the display device 2A (step S106 in Fig. 4).

<Example 4-2>

Next, an example of the operation when displaying a message from the display unit 2A on the display unit 2B in the control system of the present embodiment will be described. Since the flow of processing is the same as in the case of Example 4-1, it will be described using reference numerals in FIG. 4.

When the communication message processing unit 13A receives a communication message including a message from the display device 2A to the display device 2B (Fig. 4 step S100), the communication message is analyzed and the message is retrieved, and the display device 2A is sent. -The display unit 2B generates a display request for a received message (step S101 in Fig. 4).

The communication request reception processing unit 14 receives the message display request generated by the communication professional processing unit 13A, and passes it to the inter-display cooperation processing unit 17 (step S102 in FIG. 4). The inter-display cooperation processing unit 17 passes this message display request to the communication information providing processing unit 12 (Fig. 4 step S103). The communication information providing processing unit 12 passes this message display request to the communication specialization processing unit 13B corresponding to the destination of the message (step S104 in Fig. 4).

When receiving the message display request from the communication information providing processing unit 12, the communication message processing unit 13B creates a communication message including the message of the display unit 2A originating-display unit 2B (Fig. 4 step S105). , The created communication message is sent to the display device 2B (step S106 in Fig. 4).

The configuration of the main body 1 shown in FIG. 3 corresponds to the connection type shown in FIG. 1. Fig. 5 shows a configuration of the main body 1 corresponding to the connection type shown in Fig. 2. The configuration of the main body 1 shown in Fig. 5 is a configuration in which a communication transmission/reception processing unit 18 is added to the configuration shown in Fig. 3.

The communication transmission/reception processing unit 18 sends a communication message transmitted from the display unit 2A to the main unit 1 to the communication message processing unit 13A corresponding to the display unit 2A. Further, the communication transmission/reception processing unit 18 sends the communication message from the communication message processing unit 13A to the display device 2A corresponding to the communication message processing unit 13A. Similarly, the communication transmission/reception processing unit 18 sends the communication message transmitted from the display unit 2B to the main unit 1 to the communication message processing unit 13B corresponding to the display unit 2B. Further, the communication transmission/reception processing unit 18 sends the communication message from the communication message processing unit 13B to the display device 2B corresponding to the communication message processing unit 13B.

Fig. 6 is a block diagram showing the configuration of the display device 2A of this embodiment, and the same components as in Fig. 27 are denoted by the same reference numerals. The display unit 2A includes a communication specialization processing unit 20, a main body information processing unit 21, a main body information storage unit 22, a display information processing unit 23, a display information storage unit 24, and a screen control. A processing unit 25a, a display processing unit 26, a liquid crystal display 27, a parameter processing unit 28, a parameter storage unit 29, a touch sensor 30 (operation unit), and an operation input processing unit 31 ), an inter-display cooperative processing unit 32, and a message creation unit 33.

The screen control processing unit 25a of the present embodiment performs the processing described in the present embodiment in addition to the processing of the conventional screen control processing unit 25.

In Fig. 6, the configuration of the display device 2A is shown, but the configuration of the display device 2B is also the same as that of the display device 2A. In the prior art, by adding the inter-display cooperation processing unit 32 and the message creation unit 33, it is possible to send a message to another display, thereby enabling simple communication between users through the display.

<Example 5-1>

In the controller of the present embodiment, the operation of displaying the control amount PV, the set value SP, the operation amount MV, and the state of the indicator 2B on the monitor screen of the indicator 2A is shown in Example 1-1 (Fig. 25), it is the same as Example 2-1 (Fig. 28).

In the control system of this embodiment, the operation of sending the state information of the indicator 2A from the indicator 2A to the main body 1 is the same as in Example 2-2 (Fig. 29).

In the controller of the present embodiment, the operation of displaying the parameter setting values and the status of the indicator 2B on the parameter setting screen of the indicator 2A is the same as in Example 2-3 (Fig. 30). The operation of parameter setting change is the same as in FIGS. 26 and 37.

Next, an example of the operation when the message setting screen is displayed on the display device 2A in the controller of the present embodiment will be described. When the message setting screen is displayed on the display device 2A, the user operates the touch sensor 30 of the display device 2A to select a destination for the message, and switches to the message creation screen to create a message. It is possible to send a message. An example of the operation of sending a message from the indicator 2A to the indicator 2B in the controller will be described with reference to FIG. 7.

When the operation input processing unit 31 of the display device 2A detects the user's operation on the touch sensor 30 of the display device 2A (YES in FIG. 7 step S200), the user's operation is indicated by the display device 2A. It is transmitted to the screen control processing unit 25a. The screen control processing unit 25a transmits this user's operation to the message creation unit 33.

The message creation unit 33 of the display 2A performs message creation processing according to the user's operation (step S201 in Fig. 7), and after completion of the creation, the message of the display 2B receiving the message containing the contents of the message created by the user Data for use are generated (step S202 in Fig. 7), and the generated message data is passed to the inter-display cooperative processing unit 32 of the display unit 2A (step S203 in Fig. 7). As described above, the message includes the identification code of the indicator 2A of the origin and the identification code of the indicator 2B of the destination. The identification codes of the self and other display devices 2B are previously stored in the display information storage unit 24 of the display device 2A. Details of the message creation process will be described later.

The inter-display cooperation processing unit 32 of the display unit 2A generates a message transmission request of the display unit 2A originating-display unit 2B reception based on the message data received from the screen control processing unit 25a (Fig. 7 In step S204, the generated message transmission request is handed over to the communication message processing unit 20 of the display device 2A (step S205 in Fig. 7).

When the communication message processing unit 20 of the display unit 2A receives the message transmission request from the cooperation processing unit 32 between the display units, the communication message including the message of the display unit 2A originating-display unit 2B is created ( Fig. 7 step S206), the created communication message is sent to the main body 1 (Fig. 7 step S207).

Since the operation of the display 2B when sending a message from the display 2B to the display 2A is the same as the operation of the display 2A described in Fig. 7, a description is omitted.

<Example 5-2>

Next, an example of an operation of displaying a message sent from the display device 2B on the display device 2A in the controller of the present embodiment will be described with reference to FIG.

The display unit 2A displays a message from the display unit 2B in the same manner as the status information of the display unit 2B in the second display area of the monitor setting screen or the second display area of the parameter setting screen.

When the communication message processing unit 20 of the display unit 2A receives the communication message including the message of the display unit 2B origination-display unit 2A reception from the main unit 1 (YES in step S300 in Fig. 8), This communication message is analyzed, a message is retrieved, and a message display request for the transmission of the display unit 2B and the reception of the display unit 2A is generated (step S301 in Fig. 8).

When the message display request of the display unit 2B origination-display unit 2A received from the communication specialization processing unit 20 is received, the display unit 2B containing the contents of the message is received. ) Sending message data is generated (Fig. 8 step S302), and the generated message data is stored in the display information storage unit 24 (Fig. 8 step S303).

The screen control processing unit 25a of the display unit 2A reads the message data transmitted from the display unit 2B from the display unit information storage unit 24, and displays the message transmitted from the display unit 2B on the second display area. The screen display data is generated (step S304 in Fig. 8), and the generated screen display data is passed to the display processing unit 26 of the display device 2A (step S305 in Fig. 8).

The display processing unit 26 of the display device 2A controls the liquid crystal display 27 in accordance with the received screen display data. As a result, a message of the display unit 2B origination-display unit 2A reception is displayed in the second display area of the monitor screen of the liquid crystal display 27 or the second display area of the parameter setting screen (Fig. 8 step S306).

Since the operation of the display 2B when displaying the message sent from the display 2A on the display 2B is the same as the operation of the display 2A described in FIG. 8, a description is omitted.

Next, the liquid crystal display 27 and the touch sensor 30 of the display devices 2A and 2B will be described. In the following example, the display device 2A is described, but the configuration of the display device 2B is also the same as that of the display device 2A. When the display 2A is viewed from the front, as in FIG. 31, there is a region in which the touch sensor 30 is disposed on the surface of the liquid crystal display 27 and a bezel 2012 surrounding them. 9 is a diagram showing button operations and screen transitions in the display device 2A.

<Example 6-1>

An example of a monitor screen displayed on the display device 2A will be described. Since it is a monitor screen, the display of the screen switching button is as shown in FIG. 10, the MONI button 204 indicating a monitor screen is a selection state of white characters on a black background, and a PARA button 205 indicating parameter setting. The MESS button 206, which means setting and message, is in a non-selected state of black characters on a white background. On the monitor screen, as state information of the main body 1, each value of a control amount (PV), a set value (SP), and an operation amount (MV) is displayed.

Further, the status information 207 of the display device 2B is displayed at the bottom of the monitor screen. In the example of Fig. 10, since "HMI-B" meaning the display unit 2B and "Monitoring" meaning the monitor screen are displayed, it can be seen that the display unit 2B is displaying the monitor screen. Therefore, the user who is viewing the monitor screen of the display 2A can see that the operation does not compete even if the parameter setting operation is performed on the display 2A because the parameter setting operation is not performed on the display 2B. have.

<Example 6-2>

Next, another example of the monitor screen displayed on the display device 2A will be described. In the example of Fig. 11, as the status information 207 of the display 2B displayed at the bottom of the monitor screen, "HMI-B" meaning the display 2B and "Para setting" meaning the parameter setting screen are included. Since it is displayed, it can be seen that the indicator 2B is displaying the parameter setting screen. Therefore, the user who is looking at the monitor screen of the display unit 2A can see that there is a possibility that the operation may compete if the parameter setting operation is performed on the display unit 2A because the parameter setting operation is being performed by the display unit 2B. .

On the other hand, the operation of the main body 1 and the display 2A when displaying the monitor screen on the display 2A is shown in FIGS. 25 and 28 except that the buttons displayed in the third display area are different. As described.

The screen control processing unit 25a of the display unit 2A reads the control amount PV, the set value SP, and the operation amount MV from the main body information storage unit 22, and displays the status information of the display unit 2B. Reading from the storage unit 24, the control amount (PV), the set value (SP), and the operation amount (MV) are displayed in the first display area, the state of the indicator 2B is displayed in the second display area, and the MONI button 204 and Screen display data for displaying the PARA button 205 and the MESS button 206 in the third display area, respectively, are generated and passed to the display processing unit 26 of the display device 2A (step S1206 in Fig. 28).

<Example 6-3>

Next, an example of the operation when the monitor screen of the display device 2A is switched to the parameter setting screen will be described. When the user presses the PARA button 205 while the monitor screen is displayed on the display device 2A as shown in FIG. 10, a parameter setting screen as shown in FIG. 12 is obtained (transition of 300 in FIG. 9).

When the screen control processing unit 25a of the display unit 2A detects that the PARA button 205 has been operated through the operation input processing unit 31 of the display unit 2A, it switches from the monitor screen to the parameter setting screen. The operation of the main body 1 and the display 2A when displaying the parameter setting screen on the display 2A is explained in FIGS. 25 and 30 except that the buttons displayed in the third display area are different. As shown.

The screen control processing unit 25a of the display unit 2A reads the parameter setting values from the parameter storage unit 29, reads the status information of the display unit 2B from the display unit information storage unit 24, and identifies the parameters. The name or number of the parameter to be used and the parameter setting value are displayed in the first display area, the state of the indicator 2B is displayed in the second display area, the MONI button 204 and the PARA button 205 and the MESS button 206 and By generating screen display data for displaying the left arrow (←) button 208, the right arrow (→) button 209, and the change button 210 in the third display area, respectively, the display processing unit ( 26) (step S1410 in Fig. 30).

Since it is a parameter setting screen, the display of the screen change button is in a state where the MONI button 204 and the MESS button 206 are in a non-selected state of black characters on a white background, and the PARA button 205 is in a selected state of white characters on a black background. Has been. On the parameter setting screen, the value of one parameter among a plurality of parameters is displayed. In the example of Fig. 12, the value of the set value SP is displayed.

Further, the state information 207 of the display device 2B is displayed at the bottom of the parameter setting screen. In the example of Fig. 12, since "HMI-B" meaning the display unit 2B and "Monitoring" meaning the monitor screen are displayed, it can be seen that the display unit 2B is displaying the monitor screen.

<Example 6-4>

Next, an example of a parameter setting change screen displayed on the display device 2A will be described. When the user presses the Change button 210 while the parameter setting screen is displayed on the indicator 2A as shown in FIG. 12, the parameter setting change screen as shown in FIG. 13 is displayed (transition of 301 in FIG. 9). . Here, since the set value SP has been displayed in the state of Fig. 12, it becomes a parameter setting change screen for changing the set value SP.

On the parameter setting change screen, a value of a parameter to be changed and a plurality of buttons called ten keys are displayed. The ten keys include a number button 211 from "0" to "9", a decimal point button 212, an invert button 213 for inverting the sign, a C button 214 for erasing all inputs, and the last. There is a BS button 215 for clearing the input of, an ENT button 216 for returning to the parameter setting screen after completing the input, and a CAN button 217 for returning to the parameter setting screen by stopping the input.

As in the prior art, when the user presses the ENT button 216 or the CAN button 217 while the parameter setting change screen is displayed on the display unit 2A, it becomes a parameter setting screen (transition of 302 in Fig. 9). Further, when the user presses the MONI button 204 while the parameter setting screen is displayed on the display device 2A, it becomes a monitor screen (transition of 303 in Fig. 9).

<Example 6-5>

Next, an example of a message setting screen displayed on the display device 2A will be described. When the user presses the MESS button 206 while the monitor screen or parameter setting screen is displayed on the display device 2A, the message setting screen as shown in Fig. 14 is obtained (transition of 304 in Fig. 9). On the other hand, in the example of FIG. 14, the case where four indicators 2A, 2B, 2C, 2D are connected to the main body 1 is shown.

An example of the operation when displaying the message setting screen on the display device 2A will be described with reference to FIG. 15. The communication message processing unit 20 of the display unit 2A receives a communication message indicating the state of the display unit 2B from the main unit 1 (step S400 in Fig. 15), analyzes the communication message, and the display unit 2B The state information of is taken out and passed to the display device information processing unit 23 of the display device 2A (step S401 in Fig. 15). The display unit information processing unit 23 of the display unit 2A stores the received status information of the display unit 2B in the display unit information storage unit 24 of the display unit 2A (step S402 in Fig. 15).

The screen control processing unit 25a of the display unit 2A generates screen display data for displaying the status information of the display unit 2B and the buttons shown in FIG. 14 to the display processing unit 26 of the display unit 2A. Hand over (step S403 in Fig. 15).

The display processing unit 26 of the display device 2A controls the liquid crystal display 27 in accordance with the received screen display data. Thereby, a message setting screen as shown in Fig. 14 is displayed on the display device 2A (Fig. 15 step S404).

Since it is a message setting screen, the display of the screen change button is in a state in which the MONI button 204 and the PARA button 205 are in a non-selected state of black characters on a white background, and the MESS button 206 is in a selected state of white characters on a black background. Has been. Also, a message destination selection button is displayed on the message setting screen. The message destination selection button includes an HMI-A button 218 for indicator 2A, an HMI-B button 219 for indicator 2B, and an HMI-C button for indicator 2C ( 220) and an HMI-D button 221, which means an indicator 2D.

In this case, since the message setting screen is displayed on the display unit 2A, the HMI-A button 218, which means itself, is in a state in which black characters cannot be selected on a gray background. Since the indicators 2C and 2D are neither self nor a destination, the HMI-C button 220 and the HMI-D button 221 are in a non-selected state of black characters on a white background. By pressing any one of the HMI-B button 219, the HMI-C button 220, and the HMI-D button 221, the user displays any one of the indicators 2B, 2C, 2D other than the self. It is possible to select as a destination. In the example of Fig. 14, since the user has pressed the HMI-B button 219 by selecting the indicator 2B as the destination of the message, the HMI-B button 219 is in a state of selecting white characters on a black background. .

In addition, on the message setting screen, a Message button 222 for setting a message is displayed.

<Example 6-6>

Next, an example of a message creation screen displayed on the display device 2A will be described. When the user presses the Message button 222 while the message setting screen is displayed on the display device 2A as shown in FIG. 14, the message creation screen as shown in FIG. 16 is displayed (transition of 305 in FIG. 9).

On the message creation screen, a plurality of buttons called message input keys are displayed. In the example of Fig. 16, the number of message input keys is limited for the reason that it is a small liquid crystal display 27 and has a narrow display area, and the keyboard of English or Japanese characters cannot be displayed.

Specifically, as message input keys, four message type selection keys and ten keys are displayed. The message type selection key includes a WHO button 223 for selecting a message WHO, an IAM button 224 for selecting a message IAM, a TEL button 225 for selecting a message TEL, and a QUIT button for selecting a message QUIT ( 226).

In the ten keys, number buttons 227 from "0" to "9", space button 228 for entering a space, hyphen button 229 for entering a hyphen (-), and all input are erased. C button 230 for clearing the last input, BS button 231 for clearing the last input, ENT button 232 for returning to the message setting screen after completing the input, and for returning to the message setting screen by stopping the input. There is a CAN button 233.

As described above, the message WHO is a question message asking who is the user who is monitoring or manipulating another indicator.

The message IAM is a message that reveals who the user is to a user who is monitoring or manipulating another indicator by including the user's own ID in the message. Thus, the message IAM can also be used as an answer to the question message WHO. The ID is an employee number, telephone number, or the like previously determined between users. If the ID is known, users can communicate with each other by phone or e-mail.

The message TEL is a request message that requests a user who is monitoring or manipulating another indicator to make a phone call by including the user's own phone number in the message.

The message QUIT is a request message requesting a user who is operating another indicator to stop the operation.

In the lowermost area 234 of the message creation screen, a message being created by the user is displayed.

When the user presses the ENT button 232, the input is completed and a message is transmitted. When the user presses the CAN button 233, the input is stopped and the message is not transmitted. Further, when the user presses the ENT button 232 or the CAN button 233, it returns to the message setting screen (transition of 306 in Fig. 9).

When the user presses the MONI button 204 while the message setting screen is displayed on the display device 2A, it becomes a monitor screen (transition of 307 in Fig. 9). Further, when the user presses the MESS button 206 while the monitor screen is displayed on the display device 2A, a message setting screen is obtained (transition of 308 in Fig. 9). When the user presses the PARA button 205 while the message setting screen is displayed on the display device 2A, it becomes a parameter setting screen (transition of 309 in Fig. 9).

An example of the operation when displaying the message creation screen on the display device 2A will be described with reference to FIG. 17. The screen control processing unit 25a of the display unit 2A generates screen display data for displaying the buttons shown in Fig. 16 and passes it to the display processing unit 26 of the display unit 2A (Fig. 17, step S500). .

The display processing unit 26 of the display device 2A controls the liquid crystal display 27 in accordance with the received screen display data. Thereby, a message creation screen as shown in Fig. 16 is displayed on the display device 2A (Fig. 17 step S501).

The message creation unit 33 of the display device 2A performs message creation processing according to the user's operation on the buttons 223 to 231 (Fig. 17 steps S502 and 503). At this time, the message creation unit 33 causes the message to be created to include the identification code of the indicator 2A of the originator and the identification code of the indicator 2B selected by the user as the destination of the message on the message setting screen.

Then, the screen control processing unit 25a updates the screen display data in order to display the message being created by the user in the area 234 (Fig. 17 step S504).

The display processing unit 26 of the display device 2A controls the liquid crystal display 27 in accordance with the received screen display data. As a result, the message being created by the user is displayed in the area 234 of the message creation screen (step S505 in Fig. 17).

Until the user presses the ENT button 232 or the CAN button 233, the processing of steps S502 to S505 is repeatedly executed.

When the user presses the ENT button 232 (YES in step S506 in Fig. 17), the message creation unit 33 of the display 2A receives message data of the display 2B including the contents of the message created by the user. (Step S507 in Fig. 17), and the screen control processing unit 25a of the display device 2A displays a message setting screen (Step S508 in Fig. 17). The operation after generating the message data is as described in FIG. 7.

In addition, when the user presses the CAN button 233 (YES in step S509 in Fig. 17), the screen control processing unit 25a of the display unit 2A displays the message setting screen without generating message data (Fig. 17 step S508).

On the other hand, if the liquid crystal display 27 is large, it goes without saying that a keyboard of English or Japanese characters can be displayed.

<Example 6-7>

Next, an example of a screen displayed on the display unit 2B when a message is sent from the display unit 2A to the display unit 2B will be described. The example of Fig. 18 shows an example in which a message is sent from the display device 2A to the display device 2B while the display device 2B is displaying the parameter setting screen. At the bottom of the parameter setting screen, the status information 207 of the display device 2A is displayed. In the example of Fig. 18, "HMI-A" meaning the display unit 2A and "Messaging" meaning message transmission are displayed. Accordingly, a user viewing the parameter setting screen of the display device 2B can recognize that a message has been sent from the display device 2A.

The operation of sending the status information at the time of message transmission from the display device 2A to the main body 1 is the same as in Example 2-2 (Fig. 29).

The operation of displaying the parameter setting values and the status of the indicator 2A on the parameter setting screen of the display device 2B is the same as in Example 2-3 (FIG. 30).

Next, after the screen shown in Fig. 18 is displayed for a certain period of time, as shown in Fig. 19, the content of the message sent from the display unit 2A is displayed on the parameter setting screen. In the example of Fig. 19, in the second display area 235, "TEL" for requesting to make a call and "7123456" which is a telephone number are displayed. Phone number 7123456 is the phone number of the user operating the display device 2A. When the user of the display device 2B who has viewed the parameter setting screen in Fig. 19 calls the displayed phone number, the user of the display device 2A can be talked with by phone.

The operation of displaying the parameter setting screen in FIG. 19 is the same as the operation described in FIG. 8.

The message sent from the indicator 2A is for contacting the user of the indicator 2B, and becomes unnecessary after the contact has been made.

As a method of clearing the created message on the display 2A, a method of pressing the Message button 222 to switch to the message creation screen, pressing the C button 230 to erase all inputs, and then pressing the ENT button 232 have. Further, after a certain period of time has elapsed from transmission of the message, the screen control processing unit 25a of the display device 2A may automatically erase the contents of the message.

On the other hand, in the examples of FIGS. 18 and 19, an example in which a message is sent from the indicator 2A to the indicator 2B while the indicator 2B is displaying the parameter setting screen is described, but the indicator 2B It goes without saying that the same can be applied to the case where the monitor screen is displayed. It goes without saying that the same can be applied to a case where a message is transmitted from the display device 2B to the display device 2A.

As described above, in this embodiment, the user who wants to operate the display can easily contact the user of the other display by phone or e-mail, after knowing whether the status of the other display is a monitor screen or a parameter setting screen. Therefore, it is possible to avoid contention in parameter setting through consultation between users. In addition, since the lock function as in the prior art becomes unnecessary, the operation procedure of the display can be simplified compared to the case where the lock function is provided, and the design of the hardware and software of the display can be simplified.

<Example 6-8>

Another example of the monitor screen displayed on the display device 2A will be described with reference to FIG. 20. Here, a case where four indicators are connected to the main body 1 is illustrated.

In the examples of FIGS. 25, 28, and 30, a case in which two indicators are connected to the main body portion is described, but when three or more indicators are connected to the main body portion 1, the main body portion 1 The communication specialty processing unit 13 is provided for each display device. Each communication message processing unit 13 of the main body unit 1 receives a communication message indicating the state of the display unit 2 from the corresponding display unit 2 (step S1004 in Fig. 25). By the operation described in steps S1005 to S1007 in Fig. 25, the state information of each display unit 2 stored in the display unit information storage unit 16 of the main unit 1 is updated (Fig. 25 step S1007).

Then, the display unit information processing unit 15 of the main unit 1 retrieves the status information of each display unit 2 from the display unit information storage unit 16 and passes it to the communication information providing processing unit 12 (step 25 S1008).

The communication information providing processing unit 12 includes a control amount (PV), a set value (SP), and an operation amount (MV) received from the main body information processing unit 11, and each display unit 2 received from the display information processing unit 15. The state information is handed over to each communication specialized processing unit 13 (step S1009 in Fig. 25).

Each communication message processing unit 13 sends the created communication message to the corresponding display device 2 (step S1011 in Fig. 25). At this time, each communication specialized processing unit 13 may send the status information of all the display devices 2, or may send status information of the display devices 2 other than the corresponding display devices.

In this way, the communication message processing unit 20 of each display unit 2 can receive a communication message indicating the state of the plurality of display units 2 from the main unit 1 (step S1203 in FIG. 28, step 30 in FIG. S1407). To the status information of each display unit 2, a unique identification code is added to the display unit 2.

Therefore, when the screen control processing unit 25a of the display device 2A generates the screen display data of the monitor screen as described in step S1206 of FIG. 28, the status information 236 of each display device is stored at the bottom of the monitor screen. You can create data for screen display to be displayed.

Here, the screen control processing unit 25a displays the number of display units connected to the main unit 1 and the number of display units being operated by the user as numerical values. In the example of FIG. 20, "OPE 1" indicates that there is one display being operated, and "HMI 4" indicates that there are four display units connected to the main body 1. The same status information 236 as in Fig. 20 may be displayed on the parameter setting screen.

<Example 6-9>

Another example of the monitor screen displayed on the display device 2A will be described with reference to FIG. 21. Here, a case where four indicators are connected to the main body 1 is illustrated.

As described above, when the screen control processing unit 25a of the display unit 2A generates the screen display data of the monitor screen as described in step S1206 of Fig. 28, the status information 237 of each display unit is at the bottom of the monitor screen. Create data for screen display so that) is displayed.

Here, the screen control processing unit 25a displays a display connected to the main body 1 and a display being operated by the user as a figure (icon). In the example of Fig. 21, the four icons 202 indicate that there are four indicators connected to the main unit 1, and the ★ mark 203 in the icon 202 indicates one display that is being operated. . Further, the same status information 237 as in Fig. 21 may be displayed on the parameter setting screen.

<Example 6-10>

Another example of the monitor screen displayed on the display device 2B will be described with reference to FIG. 22. As described above, when the message setting screen or message creation screen is displayed on the display unit 2A, at the bottom of the monitor screen of the display unit 2B, “HMI-A” and message setting are displayed. Since "MESS setting" which means a screen or a message creation screen is displayed, it can be seen that the indicator 2A is displaying a message setting screen or a message creation screen. Accordingly, the user viewing the monitor screen of the display device 2B can recognize that the user of the display device 2A is creating a message. Also on the parameter setting screen, the same status information 207 as in FIG. 22 can be displayed.

It goes without saying that when the message setting screen or the message creation screen is displayed on the display device 2B, the same status information as in FIG. 22 can be displayed on the monitor screen or parameter setting screen of the display device 2A.

On the other hand, in the present embodiment, the set value SP is described as an example of the parameter, but the control parameter of the operation terminal operation processing unit (not shown) of the main body 1 that calculates the operation amount MV (e.g. PID parameter).

In addition, in the present embodiment, as an example of a field device, a controller is described as an example, but the present invention is applicable to other field devices such as a flow meter or a pressure meter. In any field device, the body unit performs a predetermined operation according to the set parameters.

Each of the main body 1 and the display units 2A and 2B described in this embodiment can be realized by a computer equipped with a CPU (Central Processing Unit), a storage device, and an interface, and a program that controls their hardware resources. have. Fig. 23 shows an example of the configuration of this computer. The computer includes a CPU 50, a storage device 51, and an interface device (hereinafter abbreviated as I/F) 52.

In the case of the main body 1, the indicators 2A and 2B are connected to the I/F 52. In the case of the display devices 2A and 2B, the main body 1, the liquid crystal display 27, and the touch sensor 30 are connected to the I/F 52. In such a computer, a program for realizing the method of the present invention is provided in a state recorded on a recording medium such as a flexible disk, a CD-ROM, a DVD-ROM, or a memory card, and stored in the storage device 51. The CPU 50 of each device executes the processing described in this embodiment according to the program stored in the storage device 51.

The present invention can be applied to devices such as a control system.

1: main body 2A to 2D: indicator
10: main body information storage unit 11: main body information processing unit
12: communication information provision processing unit 13A, 13B: communication professional processing unit
14: communication request reception processing unit 15: display information processing unit
16: display information storage unit 17: inter-display cooperation processing unit
18: communication transmission/reception processing unit 20: communication professional processing unit
21: main body information processing unit 22: main body information storage unit
23: display information processing unit 24: display information storage unit
25a: screen control processing unit 26: display processing unit
27: liquid crystal display 28: parameter processing unit
29: parameter storage unit 30: touch sensor
31: operation input processing unit 32: cooperative processing unit between display units
33: message composer

Claims (5)

A main body configured to perform a predetermined operation according to the set parameters,
A plurality of indicators for displaying information,
And a plurality of operation units provided for each of the indicators,
The body part,
A main body information processing unit configured to set and change the parameter according to a request from the display;
A first inter-display cooperative processing unit configured to transmit the message sent from the display to the display of a destination,
Each indicator is:
A parameter processing unit configured to request the main body to change the setting of the parameter according to a user's parameter setting change operation on the operation unit;
A message creation unit configured to create a message for a user of another indicator according to a user's operation on the operation unit,
A second inter-display cooperative processing unit configured to send a message created by this message creation unit to the main unit and to receive a message sent via the main unit from another display unit;
And a screen control processing unit configured to display a message sent from the other display device. The field device of claim 1, wherein the message creation unit creates the message according to a result of a user's selection of a type of the message prepared in advance. The method of claim 2, wherein the type of message is a message asking who the person is to a user of another indicator, a message stating who he is to a user of another indicator, and calling the user of another indicator to themselves. A field device, characterized in that a message for requesting to be placed and a message for requesting a user of another indicator to stop an operation are prepared in advance. The method according to any one of claims 1 to 3, wherein the screen control processing unit is configured to display any one of a monitor screen for monitoring the state of the main unit or a parameter setting screen for setting and changing the parameter, Field device, characterized in that it displays a message sent from another indicator. The method according to any one of claims 1 to 3, wherein the body portion,
A first indicator information storage unit configured to store status information of each indicator,
A first display information processing unit configured to receive the status information sent from each display unit, update the status information stored in the first display information storage unit, and send the status information stored in the first display information storage unit to each display unit More equipped,
Each indicator is:
A second indicator information processing unit configured to send its own state information to the main unit and to receive state information of another indicator sent from the main unit;
Further comprising a second display information storage unit configured to store status information of the other display unit,
And the screen control processing unit displays status information of another display unit stored in the second display information storage unit.

Images