TW201719121A - Display device and method capable of receiving and displaying information and alarm from a plurality of control loop devices - Google Patents

Abstract

The display device and method of the present invention are aimed at improving the convenience for the operator. The display device comprises: a level regulated information storage unit 10 that can store the requirements for determining the alarm level; an information acquirement unit 14 that can periodically obtain the information of the whole control loops; an alarm level determination unit 11 acquires regulations from the level regulated information storage unit 10, alarm information in the device for controlling the object, and information from the information acquirement unit 14 as a basis which is extracted as an object for the alarm level regulation and determines the alarm level of the control loop based on regulations; a loop information display and control unit 12 that can display said information related to display objects of the respective control loop from the display members of the control object device on a display member 15; and an alarm level display control unit 13 that is a kind of alarm level display that can determine the control loop of the regulated objects of the alarm level in the display object control loop and 15 and the alarm level determination unit 11.

Description

Display device and method

The present invention relates to a display device that receives information and alarm information related to a control loop of a display object from a general-purpose regulator that controls a device having a plurality of control loops.

In order to operate a device (multi-circuit system) having a plurality of control circuits, a general-purpose regulator (temperature regulator) may be used (see Patent Document 1). 11 and 12 show an example of a heating device of a multi-circuit system regulator (temperature regulator) as an object.

In the example of Fig. 11, the heating device is composed of a heating treatment furnace 100 for heating the object to be heated, a plurality of heaters H1 to H4 disposed inside the heat treatment furnace 100, and a plurality of temperature sensing. The controllers S1 to S4 measure the temperatures of the temperature control zones Z1 to Z4 in the heat treatment furnaces 100 heated by the heaters H1 to H4, respectively, and the regulator 101 calculates the operation amounts MV1 to MV4 outputted to the heaters H1 to H4; The power conditioners 102-1 to 102-4 supply electric power corresponding to the operation amounts MV1 to MV4 output from the regulator 101 to the heaters H1 to H4. The regulator 101 calculates the operation amounts MV1 to MV4 such that the temperatures PV1 to PV4 measured by the temperature sensors S1 to S4 coincide with the temperature set values SP1 to SP4. In the heating device shown in Fig. 11, four control circuits for controlling the temperatures PV1 to PV4 are formed.

Further, in the example of the heating device shown in FIG. 12, the tantalum wafer 204 is carried into the inside of the quartz tube 203 in the oxidation diffusion furnace 200. The temperature sensor S1~S4 is measured separately The temperature of the temperature control zone Z1~Z4 heated by the heat exchangers H1~H4 is PV1~PV4. The regulator 201 calculates the operation amounts MV1 to MV4 so that the temperatures PV1 to PV4 measured by the temperature sensors S1 to S4 coincide with the temperature setting values SP1 to SP4, and outputs them to the heater power source 202. The heater power source 202 supplies electric power corresponding to the operation amounts MV1 to MV4 to the heaters H1 to H4. Accordingly, an oxide film is formed on the surface of the germanium wafer 204 by heating the oxygen and germanium wafer 204 introduced into the quartz tube 203 in the oxidation diffusion furnace 200. In the heating device shown in Fig. 12, four control circuits for controlling the temperatures PV1 to PV4 are also formed.

In the manufacturing apparatus for manufacturing semiconductors, for example, the regulators 101 and 201, or the regulators 101 and 201, in order to transmit information to an operator, a display device such as a liquid crystal display is used (see Patent Document 2). Further, in the technique disclosed in Patent Document 3, a large amount of information such as an alarm is displayed on the screen.

[Patent Literature]

Patent Document 1: Japanese Laid-Open Patent Publication No. 2012-048370

Patent Document 2: Japanese Laid-Open Patent Publication No. 2001-154786

Patent Document 3: Japanese Laid-Open Patent Publication No. 2008-256651

In the case where a display device is mounted in a small manufacturing device, a small display device is used. However, in the case of manipulating a multi-circuit system as described in FIGS. 11 and 12, in a small display device, the size of the screen is not necessarily sufficient, and there is a problem that it is difficult to observe the display and hinder the convenience.

In particular, as shown in FIG. 13, in the small display device 301 integrated with the general-purpose regulator 300 and designed in accordance with the general purpose, the respective control objects are efficiently reflected (No. 1 to FIG. 13). There is a limit to the display of the inherent properties of the control object that is distinguished by the circuit number of No. 4. In the small display device for information display of the multi-loop system as described above, it is required to improve convenience.

The present invention has been made to solve the above problems, and an object thereof is to improve convenience for an operator in a display device used in a multi-circuit system in a general form.

A display device according to the present invention is characterized by comprising: a display element for image display; and a loop information display control unit for causing a display object related to a control loop of a display object among a plurality of control loops in a device for controlling an object The information is displayed on the display element; the level-defined information storage unit pre-stores the rule for determining the alarm level; the information acquisition unit periodically acquires information of all the control loops from the information output device; the alarm level determining unit determines the information from the level The storage unit acquires an alarm level, and based on the regulation, the alarm information in the device for controlling the object, and the information acquired by the information acquisition unit, extracts an object that is a predetermined level of the alarm level in the control circuit in which the alarm is generated. a control circuit, and determining an alarm level of the extracted control circuit according to the regulation; and an alarm level display control unit, wherein the alarm level determining unit in the control circuit of the display object determines a control loop of the specified item of the alarm level Alarm level, displayed in the loop The display control unit causes the display image element in the display; determines the predetermined alarm level, the alarm system for the control operation of a physical quantity related to the magnitude of the physical quantity with respect to the deviation from a predetermined alarm level management of the decision is based.

Moreover, one configuration example of the display device of the present invention further includes an alarm level. In addition, when the loop information display control unit displays only the information of one loop, when the alarm that is the predetermined object of the alarm level occurs in the control loop other than the control loop being displayed, the loop display control unit causes the control unit to display the information of the one of the alarm levels. The alarm level of the control loop other than the control loop being displayed is additionally displayed in the image displayed by the loop information display control unit to display the display element.

Further, a configuration example of the display device of the present invention further includes: an input unit capable of performing an operation on a screen of the display element; and an alarm corresponding transfer control unit that causes only one circuit in the loop information display control unit In the information display, the alarm level addition display control unit switches the screen when the operator operates the alarm level of the additionally displayed alarm level in a state in which the alarm level of the control circuit other than the control loop being displayed is additionally displayed. Only the information of the display object of the control loop corresponding to the alarm level being operated is displayed.

Further, in one configuration example of the display device of the present invention, the determination of the alarm level is based on the alarm of the temperature measurement value PV, based on the deviation of the temperature measurement value PV from the high temperature side of the allowable temperature range. The alarm level is determined, and the allowable temperature range is set in advance around the temperature set value SP.

Moreover, the display method of the present invention includes: a loop information display control step of displaying information of the display object related to the control loop of the display object in the plurality of control loops in the apparatus for controlling the object on the display element; The information output device periodically acquires information of all the control loops; the alarm level determining step refers to storing the information storage unit for storing the predetermined level of the alarm level to obtain the stored information, and the obtained control object is obtained according to the obtained regulations. Based on the alarm information in the device and the information acquired in the information acquisition step, the control circuit that is the target of the alarm level in the control circuit in which the alarm is generated is extracted, and the extracted control circuit is determined according to the regulation. Alarm level; and alarm level a control step of causing an alarm level of a control loop of the object that is a predetermined alarm level in the alarm level determining step in the control loop of the display object to be displayed in the loop information display control step to display the display component In the image, the determination of the alarm level is based on an alarm related to the physical quantity of the control action, and the alarm level is determined based on the deviation of the physical quantity from the predetermined management range.

According to the present invention, by providing the level information storage unit, the information acquisition unit, the alarm level determination unit, and the alarm level display control unit, it is possible to add an easy-to-follow alarm level display to the information being displayed, for general purpose. In the small-sized display device used in the multi-circuit system of the specification of the design screen, the convenience for the operator can be improved.

Further, in the present invention, by providing the alarm level addition display control means, it is possible to notify the operator of the alarm level of the control circuit other than the control loop being displayed.

Further, in the present invention, by providing the alarm corresponding transfer control means, when there is a control circuit in which the alarm level is higher than the alarm level of the control circuit under display, the operation can be shifted to the display by a simple operation. The status of the information of the control loop with a high alarm level.

10‧‧‧Levels Information Storage Department

11‧‧‧Alarm Level Determination Department

12‧‧‧Circuit Information Display Control Department

13‧‧‧Alarm level display control unit

14, 14a‧‧‧Information Acquisition Department

15, 15a‧‧‧ display components

16‧‧‧Alarm level additional display control unit

17‧‧‧Alarm corresponds to the transfer control unit.

FIG. 1 is a view showing an example of displaying information of four control loops on a screen of a display device.

2 is a view showing an example of displaying information of one control circuit in an enlarged manner on a screen of a display device.

3 is a block diagram showing the configuration of a display device according to the first embodiment of the present invention.

FIG. 4 is a flowchart illustrating the operation of the display device according to the first embodiment of the present invention.

Fig. 5 is a view showing a display example in the first embodiment of the present invention.

Fig. 6 is a view showing another display example in the first embodiment of the present invention.

FIG. 7 is a block diagram showing a configuration of a display device according to a second embodiment of the present invention.

8 is a flow chart for explaining the operation of the display device according to the second embodiment of the present invention.

Fig. 9 is a view showing a display example in the second embodiment of the present invention.

Fig. 10 is a view showing another display example in the second embodiment of the present invention.

Fig. 11 is a view showing an example of the configuration of a heating device including a plurality of control circuits.

Fig. 12 is a view showing another configuration example of a heating device including a plurality of control circuits.

Fig. 13 is a view showing an example of a display device integrated with a general-purpose regulator.

[Invention Principle 1]

As shown in FIG. 1, when information of, for example, four control circuits is displayed on the screen 1 of the display device, when different types of alarms occur in a plurality of control circuits, it is preferable to respond to an emergency request. In the case of a general-purpose controller (such as a multi-circuit temperature regulator), it is necessary to specify as much as possible the level of urgency in the simultaneous occurrence of alarms in multiple control loops in the standard shipping phase from the controller manufacturer. (sorted) display function.

In the case of temperature control, overheating (excessive temperature rise) is a particularly important alarm. It is more appropriate to assign the urgency level of the alarm in the order of the magnitude of the temperature of the overheated temperature that deviates from the management range (usually the allowable temperature range around the set value SP). If so If it is considered as a standard function for giving an alarm level, it can be specified by the magnitude of the superheat temperature. If the management range is used, it can be applied outside the temperature.

Here, the inventors thought of adding an indication that it is easy to grasp the alarm level. Specifically, the urgency level of the alert is clearly displayed as a numerical value. Further, as a practical application, for example, it is also effective to use a temperature range which is deviated from the low temperature side of the set value SP, or a control circuit which becomes a high temperature side as the set value SP becomes more important to the expansion of the superheat temperature range or the like.

[Invention Principle 2]

In particular, as an operation assumed in a small-sized display device, there is a state in which information of only one loop is enlarged (FIG. 2). In this case, if there is a control loop in which an alarm having a higher alarm level is generated than the displayed control loop, it is preferable to add a function capable of shifting to a display state capable of operating the control loop by a simple operation. .

[First Embodiment]

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 3 is a block diagram showing the configuration of a display device according to the first embodiment of the present invention. This embodiment is an example corresponding to the above-described inventive principle 1. In the present embodiment, as shown in Figs. 11 and 12, an example of a manufacturing apparatus that performs temperature control on four control circuits (four control areas as devices) by a general-purpose regulator is used. However, even in the case of three control loops having four fewer control loops and five control loops and six control loops than the four control loops, the alarm level display of the essential part of the present invention can be applied.

The display device of the present embodiment includes a level specifying information storage unit 10, The predetermined level of the alarm level is stored in advance; the alarm level determining unit 11 obtains the specification of the alarm level from the level information storage unit 10, and extracts the control circuit in which the alarm is generated based on the alarm information in the predetermined and control device. The control circuit that is the predetermined item of the alarm level determines the alarm level of the extracted control circuit according to the predetermined rule; and the circuit information display control unit 12 displays the display object related to the control circuit of the display object in the device for controlling the object. The information is displayed on a display element to be described later, and the alarm level display control unit 13 displays the alarm level of the control circuit of the predetermined item of the alarm level in the control circuit of the display object, and displays the alarm information in the loop information. The display control unit 12 causes the information to be displayed on the display element, and the information acquisition unit 14 periodically acquires information of all the control circuits from the information output device (for example, the general-purpose controller); and displays the liquid crystal display panel or the like for image display. Element 15.

Fig. 4 is a flow chart for explaining the operation of the display device of the embodiment. The loop information display control unit 12 causes the display element 15 to display information to be displayed transferred from an information output device (for example, a general-purpose adjuster) (not shown) in accordance with a predetermined rule (step S100 of FIG. 4). The general-purpose regulator forwards the information to be displayed automatically selected in accordance with a predetermined rule or the information to be displayed selected according to the operation of the operator to the loop information display control unit 12.

In the case of, for example, display of four control loops, the universal regulator transfers control information or operation information corresponding to each control loop in the device (for example, the heating device) that controls the object, and the circuit number of each specific control loop to the loop. Information display control unit 12. The loop information display control unit 12 arranges information corresponding to each control loop in a matrix of vertical 2×horizontal 2 as shown in FIG. 1 in accordance with a predetermined rule (in the example of FIG. 1 , It is an image of the temperature set value SP and the temperature measurement value PV) and the circuit number (No. 1 to No. 4).

Moreover, in the case of performing display of one control loop, the universal regulator will be combined with The control information or operation information corresponding to the control loop of the object and the loop number corresponding to the control loop are forwarded to the loop information display control unit 12. The loop information display control unit 12 displays the information corresponding to the control loop in a magnified manner on one screen as shown in FIG. 2 in accordance with a predetermined rule (in the example of FIG. 2, it is a temperature set value). Image of SP and temperature measurement PV) and loop number (No. 3). In this case, the information of the control loops of the loop numbers No. 1, No. 2, and No. 4 is not displayed.

The above-described processing of step S100 is the same as the processing by the conventional general-purpose regulator.

Further, when an alarm occurs, the general-purpose regulator transmits an alarm information indicating the content of the alarm and a circuit number of the control loop that specifically generates the alarm to the display device. In addition, the alarm information includes an alarm code indicating the type of the alarm.

The information acquisition unit 14 periodically acquires information of all the control loops from the information output device (for example, the general-purpose controller) (step S101 of FIG. 4). In this case, the information acquisition unit 14 acquires the physical quantity of the control operation required for the determination of the alarm level to be described later for the control circuits of the circuit numbers No. 1 to No. 4 (in the present embodiment, the temperature measurement value) PV and temperature set point SP).

Then, in the rating information storage unit 10, a rule for determining the alarm level is stored in advance. Here, there is a rule that the alarm level is higher as the temperature measurement value PV is larger from the allowable temperature range that is set in advance to the temperature set value SP to the high temperature side (the deviation width). When the upper limit of the allowable temperature range is set to TH, the superheat temperature range is PV-TH.

The alarm level determination unit 11 acquires an alarm or the like from the level specification information storage unit 10. According to the regulation, the alarm information received from the general-purpose regulator and the latest information of each control loop acquired by the information acquisition unit 14 are used to extract the alarm level in the control circuit in which the alarm is generated. The control loop of the object determines the alarm level of the extracted control loop in accordance with the regulation (step S102 of Fig. 4). Here, the larger the superheat temperature range is, the higher the alarm level is stored in the level specification information storage unit 10. Therefore, the control circuit whose temperature measurement value PV is higher than the allowable temperature range becomes a predetermined item of the alarm level. As described above, the information acquisition unit 14 acquires the temperature measurement value PV and the temperature setting value SP required for the determination of the alarm level.

The alarm level display control unit 13 causes the circuit information display control unit 12 to display the alarm level of the control circuit of the predetermined item of the alarm level in the control circuit for displaying the object, and displays it in the circuit information display control unit. 12 causes the display element to display an image (step S103 of Fig. 4).

At this time, the loop information display control unit 12 causes the image displayed on the display element 15 to be an image in which the information of the plurality of control loops is displayed on the divided area on the screen for each control circuit as shown in FIG. At this time, the alarm level display control unit 13 displays the alarm level of the control circuit that is the predetermined item of the alarm level in the area corresponding to the control circuit.

The processing of steps S100 to S103 described above is repeatedly executed until the operation of the display device is completed (YES in step S104 of Fig. 4).

Fig. 5 is a view showing a display example of the embodiment. In the example of Fig. 5, in the screen 1 of the display element 15, the circuit number No. is displayed in each of the corresponding areas 1-1 to 1-4 on the screen in a single circuit as in Fig. 1. In the state of the temperature setting value SP and the temperature measurement value PV of the control circuit of 1 to No. 4, an emergency alarm is generated in the control circuits of the circuit numbers No. 2 and No. 3. The alarm level display control unit 13 makes the request and the request The background color of the area corresponding to the control loops of the circuit numbers No. 2 and No. 3 of the emergency alarm changes, and the digit indicating the alarm level is displayed in the Δ mark 2 indicating the occurrence of the alarm. In the example of Fig. 5, the alarm level of the control circuit of the circuit No. 3 is the first order, and the alarm level of the control circuit of the circuit No. 2 is the second order.

Further, the temperature setting values SP1 to SP4 of the control circuits of the circuit numbers No. 1 to No. 4 are set to 100 ° C which is the same value. Further, the temperature measurement values PV1 to PV4 of the control circuits of the circuit numbers No. 1 to No. 4 are PV1 = 101 ° C, PV 2 = 106 ° C, PV 3 = 104 ° C, and PV 4 = 105 ° C, respectively.

When the allowable temperature range set around the temperature set values SP1 to SP4 is ±3 ° C, the temperature measurement value PV2 of the control circuit of the circuit No. 2 deviates from the allowable temperature range SP2 ± 3 ° C to the high temperature side. The overheating temperature range is 3 °C. Further, the temperature measurement value PV3 of the control circuit of the circuit No. 3 deviates from the allowable temperature range SP3±3°C toward the high temperature side, and the superheat temperature range thereof is 1°C. Similarly, the temperature measurement value PV4 of the control circuit of the circuit No. 4 deviates from the allowable temperature range SP4±3°C toward the high temperature side, and the superheat temperature range thereof is 2°C. Therefore, an emergency request alarm is generated in the control circuits of the circuit No. 2 to No. 4, and the alarm level determination unit 11 sets the alarm level of the control circuit of the circuit No. 2 to the first order, and the circuit No. The alarm level of the 4th control circuit is set to the 2nd order, and the alarm level of the circuit No. 3 is set to the 3rd order. The result is shown in Figure 6.

As described above, in the present embodiment, it is possible to add a display that is easy to grasp the alarm level in the information being displayed. That is, in a small display device used in a multi-loop system in which a screen design is designed for general purpose, the convenience for the operator can be improved.

Further, in the present embodiment, the alarm level is increased as the temperature of the superheat temperature is increased. The high specification is stored in the level specification information storage unit 10. However, the larger the alarm level (the deviation width) is, the higher the alarm level is stored in the level specification information. Storage unit 10. When the lower limit of the allowable temperature range is TL, the insufficient temperature range is TL-PV. In the state in which the above-described specifications are stored, the temperature setting values SP1 to SP4 of the control circuits of the circuit numbers No. 1 to No. 4 are set to 100 ° C which is the same value. Further, the temperature measurement values PV1 to PV4 of the control circuits of the circuit numbers No. 1 to No. 4 are PV1 = 101 ° C, PV 2 = 94 ° C, PV 3 = 96 ° C, and PV 4 = 95 ° C, respectively.

Similarly to the above, when the allowable temperature range set around the temperature set values SP1 to SP4 is ±3 °C, the temperature measurement value PV2 of the control circuit of the circuit No. 2 is from the allowable temperature range of SP2 ± 3 °C to the low temperature. The side is deviated, and its insufficient temperature range is 3 °C. Further, the temperature measurement value PV3 of the control circuit of the circuit No. 3 deviates from the allowable temperature range SP3 ± 3 ° C toward the low temperature side, and the insufficient temperature range is 1 ° C. Similarly, the temperature measurement value PV4 of the control circuit of the circuit No. 4 deviates from the allowable temperature range SP4 ± 3 ° C toward the low temperature side, and the insufficient temperature range is 2 ° C. Therefore, in the control circuit of the circuit No. 2 to No. 4, an emergency alarm is required, and the alarm level determination unit 11 sets the alarm level of the control circuit of the circuit No. 2 to the first order, and the circuit number No. The alarm level of the control circuit of 4 is set to the second order, and the alarm level of the control circuit of circuit No. 3 is set to the third order. The result is the same as that of Fig. 6.

Further, when the temperature of the overheating temperature is larger, the alarm level is higher and the temperature of the superheating temperature is the same. The higher the temperature setting value SP is, the higher the alarm level is stored in the level specifying information storage unit 10. In the state where the above-described regulations are stored, the temperature setting values SP1 to SP4 of the control circuits of the circuit No. 1 to No. 4 are set to SP1 = 100 ° C, SP 2 = 105 ° C, SP3 = 110 ° C, and SP 4 = 107, respectively. °C. Moreover, the control of loop numbers No. 1 to No. 4 is back. The road temperature measurements PV1~PV4 are PV1=101°C, PV2=110°C, PV3=115°C, and PV4=112°C.

Similarly to the above, when the allowable temperature range set around the temperature set values SP1 to SP4 is ±3 °C, the temperature measurement values PV2, PV3 of the control circuits of the circuit No. 2, No. 3, and No. 4 PV4 deviates from the allowable temperature range of SP2±3°C, SP3±3°C, and SP4±3°C to the high temperature side, and the superheat temperature ranges are all 2°C. Therefore, an emergency alarm is required in the control circuits of the circuit numbers No. 2 to No. 4. However, since the superheat temperature range is all 2 ° C, the alarm level determining unit 11 regards the temperature setting values SP2, SP3, and SP4. The alarm level of the control circuit of circuit No. 3 is set to the first order, the alarm level of the control circuit of circuit No. 4 is set to the second order, and the alarm level of the control circuit of circuit No. 2 is set. It is the third overall.

[Second Embodiment]

Next, a second embodiment of the present invention will be described. This embodiment is an example corresponding to the above-described inventive principle 2. Fig. 7 is a block diagram showing a configuration of a display device according to the present embodiment, and the same components as those in Fig. 3 are denoted by the same reference numerals. The display device of the present embodiment includes a level information storage unit 10, an alarm level determination unit 11, a circuit information display control unit 12, an alarm level display control unit 13, an information acquisition unit 14a, and a display element 15a with a touch panel function. The alarm level addition display control unit 16 and the alarm corresponding transfer control unit 17; the alarm level addition display control unit 16 sets the alarm level in the state in which only the information of one circuit is displayed in the loop information display control unit 12. When an alarm of an object occurs in a control loop other than the control loop being displayed, an alarm of the control loop other than the control loop being displayed, etc. The level is additionally displayed in the image in which the display information is displayed by the loop information display control unit 12; the alarm correspondence control unit 17 displays only the information of one circuit in the loop information display control unit 12, and the alarm level is added to the display control unit 16. When the alarm level of the control circuit other than the control loop being displayed is additionally displayed, when the operator operates the position of the additionally displayed alarm level, the screen is switched to display only the control circuit corresponding to the operated alarm level. Display information about the object. The display element 15a having a touch panel function constitutes an input unit capable of performing screen operations.

Fig. 8 is a flow chart for explaining the operation of the display device of the embodiment. The operation of the loop information display control unit 12 has been described in the first embodiment (step 100 in Fig. 8). Here, as shown in FIG. 2, the information and the circuit number corresponding to the specific control circuit are enlarged on one screen and displayed on the display element 15a.

The information acquisition unit 14a acquires information necessary for the determination of the alarm level in the same manner as the information acquisition unit 14 of the first embodiment, and acquires the same type of display item from the currently displayed display item from the information output device (for example, the general-purpose adjuster). The information is used as information of all control loops (step S101a of Fig. 8). For example, if the temperature setting value SP and the temperature measurement value PV of the control circuit of the circuit No. 3 are currently displayed, the temperature setting value SP and the temperature measurement value PV of the control circuit of the circuit numbers No. 1 to No. 4 can be obtained. .

The operation of the level information storage unit 10, the alarm level determination unit 11, and the alarm level display control unit 13 has been described in the first embodiment (steps S102 and S103 in Fig. 8).

In a state in which only the information of one circuit is enlarged and displayed in the loop information display control unit 12 (YES in step S105 of FIG. 8), the alarm that causes the predetermined object of the alarm level to occur is controlled by the control circuit other than the control circuit being displayed. In the case of the loop (in step S106 of Fig. 8 YES, the alarm level addition display control unit 16 displays the alarm level of the control circuit other than the control circuit being displayed in the image displayed by the circuit information display control unit 12 on the display element (step S107 in Fig. 4).

Fig. 9 is a view showing a display example of the embodiment. In the example of Fig. 9, similarly to Fig. 2, the information of one loop (the temperature set value SP and the temperature measurement value PV in the example of Fig. 9) and the loop number (No. 3) are enlarged and displayed on one screen. Next, an example of the same alarm occurrence state as in the case of FIG. 6 is obtained. As described above, the alarm level determination unit 11 sets the alarm level of the control circuit of the circuit No. 2 to the first order, and sets the alarm level of the control circuit of the circuit No. 4 to the second order, and the circuit number No. The alarm level of the control circuit of .3 is set to the third order. Therefore, the alarm level display control unit 13 changes the background color of the screen 1 of the information of the control circuit that is displaying the circuit No. 3, and indicates that the alarm has occurred. Mark 2 shows the alarm level as the 3rd.

Further, since an alarm is generated in the control circuits (the control circuits of the circuit numbers No. 2 and No. 4) other than the control circuit being displayed, the alarm level addition display control unit 16 displays the alarm level as the first order in the display circuit number. In the Δ mark 3-1 in which the alarm of the control circuit of No. 2 is generated, the alarm level is displayed in the Δ mark 3-2 indicating that the alarm of the control circuit of the circuit No. 4 is generated.

Fig. 10 is a view showing another display example of the embodiment. In the example of Fig. 10, the information of one circuit (temperature setting value SP and temperature measurement value PV in the example of Fig. 10) and circuit number (No. 3) are displayed in a single screen in the same manner as in Fig. 2 . The state is the case where no alarm occurs in the control circuit of circuit No. 3, and an alarm occurs in another control circuit.

For example, if the alarm level of the control circuit of the circuit No. 2 is the first order and the alarm level of the control circuit of the circuit No. 4 is the second order, the alarm level additional display control unit 16 causes the alarm level to be the first order display. In the Δ mark 3-1 indicating that the alarm of the control circuit of the circuit No. 2 is generated, the alarm level is displayed in the Δ mark 3-2 indicating that the alarm of the control circuit of the circuit No. 4 is generated. .

On the other hand, the loop information display control unit 12 enlarges and displays the information of one circuit, and the alarm level addition display control unit 16 additionally displays the alarm level of the control circuit other than the control loop being displayed, and operates the operator. When the alarm level is additionally displayed in the position where the alarm level is additionally displayed by the control unit 16 (YES in step S108 of FIG. 8), the alarm-corresponding transition control unit 17 switches the screen to display only the control corresponding to the operated alarm level. The information of the display object of the loop (step S109 of Fig. 8).

In the case of using the display element 15a with the touch panel function, the operator can touch the place where the alarm level is displayed on the screen 1. For example, in the state shown in FIG. 9, when the operator touches the Δ mark 3-1, the alarm corresponding transition control unit 17 switches the screen to display only the control loop corresponding to the alarm level 1 (for example, the loop number). Information of the display object of No. 2 control loop).

In this case, the information to be displayed may be the same type of display item as the display item before the screen is switched. For example, if the temperature setting value SP and the temperature measurement value PV of the control circuit of the circuit No. 3 are displayed before the screen is switched, the temperature setting value SP and the temperature measurement of the control circuit of the circuit No. 2 are displayed on the screen after switching. The value of PV can be.

However, in the state in which the information of the control circuit of the circuit No. 3 is displayed, the alarm corresponding transfer control unit 17 does not have the information displayed on the screen after the switching, and therefore, after the switching, The control circuit of the screen display must acquire the latest information of the display item of the same type as the display item of the control circuit displayed on the screen before the switching from the information acquisition unit 14a.

The processes of steps S100, S101a, S102, S103, and S105 to S109 described above are repeatedly executed until the operation of the display device is completed (YES in step S110 of Fig. 8).

As described above, in the present embodiment, when there is a control circuit in which the alarm level of the circuit is higher than that of the control circuit being displayed, it is possible to shift to the information indicating the control circuit having the high alarm level by a simple operation. status.

In addition, in the first and second embodiments, the control amount PV is used as the physical quantity related to the control operation, and the temperature is described as an example. However, the present invention is not limited thereto, and is detected by the universal regulator. The alarm of the physical quantity is registered in the level specifying information storage unit 10 as long as the deviation of the physical quantity from the predetermined management range is larger, and the alarm level determining unit 11 obtains the predetermined sum from the level specifying information storage unit 10. When the alarm level is determined based on the physical quantity measured by the general-purpose regulator, the present invention can be applied to a control amount PV other than the temperature or a physical quantity other than the control amount PV (for example, a deviation between the set value SP and the control amount PV). .

Further, in the first and second embodiments, the display device is separated from the general-purpose regulator. However, the present invention can be applied to a display device integrated with a general-purpose regulator.

In the display device described in the first embodiment, the level information storage unit 10, the alarm level determination unit 11, the circuit information display control unit 12, the alarm level display control unit 13, and the information acquisition unit 14 can be provided with a CPU ( Central Processing Unit, central processing unit, storage and interface computer, and programs that control these hardware resources. same In the display device described in the second embodiment, the level information storage unit 10, the alarm level determination unit 11, the circuit information display control unit 12, the alarm level display control unit 13, the information acquisition unit 14a, and the alarm level are additionally displayed. The control unit 16 and the alarm corresponding transfer control unit 17 can be realized by a computer. The CPU of these computers executes the processing described in the first and second embodiments in accordance with the program stored in the storage device.

[Industrial availability]

The present invention can be applied to a display device used in a multi-loop system.

10‧‧‧Levels Information Storage Department

11‧‧‧Alarm Level Determination Department

12‧‧‧Circuit Information Display Control Department

13‧‧‧Alarm level display control unit

14‧‧‧Information Acquisition Department

15‧‧‧Display components

Claims (8)

A display device comprising: a display element for image display; and a loop information display control unit for displaying information of a display object related to a control loop of a display object in a plurality of control loops in a device for controlling an object Displayed on the display element; the level-defined information storage unit pre-stores the rule for determining the alarm level; the information acquisition unit periodically acquires information of all the control loops from the information output device; the alarm level determining unit specifies the information storage from the level The unit obtains the alarm level, and based on the regulation, the alarm information in the device for controlling the object, and the information acquired by the information acquisition unit, extracts the control of the object that is the alarm level in the control loop in which the alarm is generated. a circuit, and determining an alarm level of the extracted control circuit according to the regulation; and an alarm level display control unit, wherein the alarm level determining unit in the control circuit of the display object determines a control loop of the specified item of the alarm level Alarm level, displayed in the loop information The display control unit displays an image in the display device; determines the predetermined alarm level, the alarm system for the control operation of a physical quantity related to the magnitude of the physical quantity with respect to the deviation from a predetermined alarm level management of the decision is based. The display device according to the first aspect of the invention, further comprising: an alarm level additional display control unit, wherein the loop information display control unit displays the information of the one circuit level in a state in which only one circuit information is displayed When an alarm occurs in a control circuit other than the control loop being displayed, the alarm level of the control circuit other than the control loop being displayed is additionally displayed in the image displayed by the loop information display control unit to display the display element. The display device of claim 2, further comprising: an input unit capable of performing an operation on a screen of the display element; and an alarm corresponding transfer control unit, wherein the loop information display control unit displays only one loop information When the alarm level addition display control unit causes the alarm level of the control circuit other than the control loop being displayed to be additionally displayed, when the operator operates the position of the additionally displayed alarm level, the screen is switched to display only Information on the displayed object of the control loop corresponding to the alarm level being operated. The display device according to any one of claims 1 to 3, wherein the determination of the alarm level is an alarm for the temperature measurement value PV, and the temperature measurement value PV is to the high temperature side with respect to the allowable temperature range. Based on the magnitude of the deviation, the alarm level is determined, and the allowable temperature range is set in advance around the temperature set value SP. A display method, comprising: a loop information display control step of displaying information of a display object related to a control loop of a display object in a plurality of control loops in a device for controlling an object on a display component; The information output device periodically acquires information of all the control loops; the alarm level determining step refers to storing the information storage unit for storing the predetermined level of the alarm level to obtain the stored information, and the obtained control object is obtained according to the obtained regulations. Based on the alarm information in the device and the information acquired in the information acquisition step, the control circuit that is the target of the alarm level in the control circuit in which the alarm is generated is extracted, and the extracted control circuit is determined according to the regulation. And an alarm level display control step for displaying an alarm level of the control loop of the object as the alarm level in the alarm level determining step in the control loop of the display object In the image displayed by the display element in the loop information display control step, the determination of the alarm level determines the alarm level based on the deviation of the physical quantity from the predetermined management range for the alarm related to the physical quantity of the control operation. . The display method of claim 5, further comprising: an alarm level additional display control step, in the state in which the loop information display control step only displays information of one loop, the object that becomes the specified level of the alarm level When an alarm occurs in a control circuit other than the control loop being displayed, the alarm level of the control circuit other than the control loop being displayed is additionally displayed in the image displayed by the display element in the loop information display control step. The display method of claim 6, further comprising: an alarm corresponding transfer control step, wherein only information of one loop is displayed in the loop information display control step, and the display is performed in the additional display control step of the alarm level When the alarm level of the control circuit other than the control circuit is additionally displayed, when the operator operates the position of the additionally displayed alarm level, the screen is switched to display only the display object of the control circuit corresponding to the operated alarm level. Information. The display method according to any one of claims 5 to 7, wherein the determination of the alarm level is an alarm for the temperature measurement value PV, and the temperature measurement value PV is to the high temperature side with respect to the allowable temperature range. Based on the magnitude of the deviation, the alarm level is determined, and the allowable temperature range is set in advance around the temperature set value SP.