TWI615598B - Display device and method - Google Patents

Abstract

The purpose of the display device and method of the present invention is to improve convenience for the operator.

The display device is provided with a level regulation information storage unit 10 that stores a rule for determining an alarm level; an information acquisition unit 14 that periodically acquires information of all control circuits; an alarm level determination unit 11 that acquires a rule from the level regulation information storage unit 10 Based on the alarm information in the device that controls the object and the information obtained by the information acquisition unit 14, the control loop of the object that becomes the predetermined level of alarm is extracted, and the alarm level of the control loop is determined according to the regulations; the loop information display control unit 12, Displaying the information of the display object related to the control circuit of the display object in the device for controlling the object on the display element 15; and the alarm level display control unit 13 for the alarm level determination unit 11 in the control circuit of the display object to determine The alarm level of the control loop of the object with the specified alarm level is displayed.

Description

Display device and method

The present invention relates to a display device that receives and displays information related to a control circuit of a display object from a universal regulator that controls a device having a plurality of control circuits and displays the same.

In order to operate a device (multi-loop system) having multiple control loops, a general-purpose regulator (temperature regulator) is sometimes used (see Patent Document 1). FIG. 11 and FIG. 12 show examples of a multi-loop system (temperature regulator) as a heating device for an object.

In the example of FIG. 11, the heating device is composed of the following components: a heating treatment furnace 100 for heating an object to be heated; a plurality of heaters H1 to H4 provided inside the heating treatment furnace 100; a plurality of temperature sensors The controllers S1 to S4 measure the temperatures of the temperature control zones Z1 to Z4 in the heating treatment furnace 100 heated by the heaters H1 to H4, respectively; the regulator 101 calculates the operation amounts MV1 to MV4 output to the heaters H1 to H4; The power regulators 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.

In the example of the heating device shown in FIG. 12, the silicon wafer 204 is carried into the quartz tube 203 inside the oxidation diffusion furnace 200. Temperature sensors S1 ~ S4 are added separately The temperature PV1 ~ PV4 of the temperature control zones Z1 ~ Z4 heated by the heaters H1 ~ H4. 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 set values SP1 to SP4, and outputs the operation amounts MV1 to MV4. The heater power source 202 supplies electric power corresponding to the operation amounts MV1 to MV4 to the heaters H1 to H4. As a result, an oxygen film is formed on the surface of the silicon wafer 204 by heating the oxygen and the silicon 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 regulators 101 and 201 or a manufacturing device that uses the regulators 101 and 201 to manufacture a semiconductor, for example, a display device such as a liquid crystal display is used to transmit information to an operator (see Patent Document 2). In addition, in the technique disclosed in Patent Document 3, a large amount of information such as an alarm is displayed on a screen.

[Patent Literature]

Patent Document 1: Japanese Patent Application Publication No. 2012-048370

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

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

When a display device is mounted in a small manufacturing device, a small display device is used. However, in the case of operating a multi-loop system as described in FIGS. 11 and 12, the size of the screen is not necessarily sufficient in a small display device, and there are problems that it is difficult to observe the display and hinder convenience.

In particular, as shown in FIG. 13, in a small display device 301 integrated with the universal regulator 300 and designed in accordance with the specifications of a general purpose screen, each control object is efficiently reflected (in accordance with No. 1 to FIG. 13) There is a limit to the display of the unique properties of the control object distinguished by the circuit number of No. 4). In a small display device for information display of a multi-loop system as described above, convenience is required to be improved.

The present invention has been made to solve the above-mentioned 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.

The display device of the present invention is characterized by comprising: a display element for image display; and a loop information display control unit that enables display objects related to the control loops of the display objects in a plurality of control loops in the apparatus to control the objects. The information is displayed on the display element; the level specifies the information storage unit that stores the rules that determine the alarm level in advance; the information acquisition unit periodically obtains the information of all control loops from the information output device; the alarm level determination unit specifies the information from the level The storage unit obtains the alarm level requirement, and based on the requirement, the alarm information in the device of the control object, and the information obtained by the information acquisition unit, extracts the object in the control loop where the alarm occurred and becomes the specified alarm level. And control the alarm level of the extracted control circuit in accordance with the regulations; and the alarm level display control unit, among the control loops of the display object, the alarm level determination unit determines the control loop of the specified object 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.

An example of the configuration of the display device of the present invention further includes an alarm level. An additional display control unit is configured to display information of only one circuit in the loop information display control unit, and when an alarm having a predetermined object of the alarm level occurs in a control circuit other than the control circuit being displayed, The alarm level of a control circuit other than the control circuit being displayed is additionally displayed on an image displayed by the display element of the circuit information display control unit.

In addition, one configuration example of the display device of the present invention further includes: an input unit capable of operating a screen of the display element; and an alarm response transition control unit configured to perform only one circuit in the loop information display control unit. When the information is displayed and the alarm level additional 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 place where the alarm level has been additionally displayed, the screen is switched to Only the information of the display object of the control circuit corresponding to the alarm level being operated is displayed.

Furthermore, in a configuration example of the display device of the present invention, the rule for determining the alarm level is an alarm for a temperature measurement value PV based on a deviation range of the temperature measurement value PV from a high temperature side with respect to an allowable temperature range. The alarm level is determined, and the allowable temperature range is set in advance around the temperature setpoint SP.

In addition, the display method of the present invention includes: a loop information display control step, which displays information about display objects related to the control loops of the display objects in a plurality of control loops in the device of the control object on a display element; and an information obtaining step The information of the entire control circuit is periodically obtained from the information output device. The alarm level determination step refers to the storage of the level information storage unit for determining the required level for determining the alarm level to obtain the stored information. Based on the alarm information in the device and the information obtained in the information acquisition step, the control circuit of the alarm control circuit that has become a predetermined object of the alarm level is extracted, and the extracted control circuit is determined according to the regulations. Alarm level; and alarm level display The display control step causes the alarm level of the control loop of the object in the control loop of the display object to be specified as the alarm level in the alarm level determination step, and displays the alarm level of the display element in the loop information display control step. In the image, the rule that determines the alarm level is an alarm for a physical quantity related to the control action. The alarm level is determined based on the deviation of the physical quantity from the predetermined management range.

According to the present invention, by setting the level regulation information storage unit, information acquisition unit, alarm level determination unit, and alarm level display control unit, it is possible to add a display that is easy to grasp the alarm level to the information being displayed. It is possible to improve the convenience for the operator in designing the screen specifications of a small display device used in a multi-loop system.

In addition, in the present invention, by setting an alarm level additional display control unit, it is possible to notify an operator of an alarm level of a control circuit other than the control circuit being displayed.

In addition, in the present invention, by providing an alarm-corresponding transition control unit, when there is a control loop where an alarm having an alarm level higher than the alarm level of the control loop being displayed can be generated, it can be shifted to the display by a simple operation. Status of information of the control circuit with high alarm level.

10‧‧‧Level Regulation Information Storage Department

11‧‧‧Alarm level decision department

12‧‧‧Circuit information display control section

13‧‧‧Alarm level display control unit

14, 14a‧‧‧ Information Acquisition Department

15, 15a‧‧‧ display element

16‧‧‧ Alarm level additional display control unit

17‧‧‧ Alarm corresponding to the transfer control department.

FIG. 1 is a diagram showing an example in which information of four control circuits is displayed on a screen of a display device.

FIG. 2 is a diagram showing an example in which information of one control circuit is enlarged and displayed on a screen of a display device.

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

Fig. 6 is a diagram 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.

FIG. 8 is a flowchart illustrating the operation of the display device according to the second embodiment of the present invention.

FIG. 9 is a diagram showing a display example in the second embodiment of the present invention.

FIG. 10 is a diagram showing another display example in the second embodiment of the present invention.

FIG. 11 is a diagram showing a configuration example of a heating device including a plurality of control circuits.

FIG. 12 is a diagram showing another configuration example of a heating device including a plurality of control circuits.

FIG. 13 is a diagram showing an example of a display device integrated with a universal regulator.

[Inventive Principle 1]

As shown in FIG. 1, when information such as 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 person. In the case of general-purpose controllers (such as multi-loop temperature regulators), it is necessary to specify, as far as possible, the level of urgency when multiple control loops are simultaneously alarmed during the standard shipping phase from the controller manufacturer. (Order) 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 overheating temperature range that deviates from the management range (usually the allowable temperature range around the set value SP). If so If it is a concern, as a standard function for assigning an alarm level, it can be specified by the overheating temperature range. If the management range is used, it can be applied to other than temperature.

Here, the inventors have thought of adding a label that makes it easy to grasp the alarm level. Specifically, the urgency level of the alarm is clearly displayed as a numerical value. In addition, for practical applications, for example, it is also effective to use a temperature range that deviates from the low temperature side of the set value SP, or that a control circuit with a set value SP that becomes the high temperature side pays more attention to the expansion of the overheating temperature range.

[Invention Principle 2]

In particular, as an operation assumed in a small-sized display device, there is a state where information of only one circuit is enlarged and displayed (FIG. 2). In this case, if there is a control loop that generates a higher level of alarm 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 a configuration of a display device according to a first embodiment of the present invention. This embodiment is an example corresponding to the above-mentioned invention principle 1. In this embodiment, as shown in FIG. 11 and FIG. 12, it is assumed that an example of a manufacturing device that performs temperature control on four control circuits (as a device, there are four control areas) using a universal regulator. However, even if it is three control loops less than four control loops, five control loops more than four control loops, and six control loops, the alarm level display of the essential part of the present invention can be applied.

The display device according to this embodiment includes a level regulation information storage unit 10, The rules for determining the alarm level are stored in advance; the alarm level determination section 11 obtains the alarm level requirements from the level information storage section 10, and extracts the alarm information from the control circuit where the alarm occurred based on the regulations and the alarm information in the device controlling the object. The control loop of the object that becomes the regulation of the alarm level determines the alarm level of the control loop that is extracted in accordance with the regulation; the loop information display control unit 12 makes display objects related to the control loop of the display object in the device controlling the object The information is displayed on a display element described later; the alarm level display control unit 13 displays the alarm level of the control loop of the object of which the alarm level determination unit 11 has determined the alarm level among the control loops of the display object, and displays the alarm level in the loop information. The display control unit 12 displays images displayed on the display element; the information acquisition unit 14 periodically obtains information of all control circuits from an information output device (such as a universal regulator); and a display such as a liquid crystal display panel for image display. Element 15.

FIG. 4 is a flowchart illustrating the operation of the display device according to this 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 universal regulator) that is not shown in accordance with a predetermined rule (step S100 in FIG. 4). The universal regulator transmits the information to be displayed automatically selected in accordance with a predetermined rule or the information to be displayed selected according to an operator's operation to the loop information display control unit 12.

For example, in the case of displaying four control loops, the universal regulator transfers control information or operation information corresponding to each control loop in a device to be controlled (such as a heating device), and the loop number of a specific control loop to the loop. Information display control section 12. The circuit information display control unit 12 displays information corresponding to each control circuit in a matrix of 2 × 2 horizontally as shown in FIG. 1 in accordance with a predetermined rule, as shown in FIG. 1 (in the example of FIG. 1, Image of temperature setpoint SP and temperature measured value PV) and circuit number (No.1 to No.4).

In the case of displaying one control loop, the universal regulator will The control information or operation information corresponding to the control loop of the object and the loop number specifying the control loop are transmitted to the loop information display control section 12. The circuit information display control unit 12 displays the display element 15 on a single screen and displays information corresponding to the control circuit in an enlarged manner as shown in FIG. 2 in accordance with a predetermined rule (in the example of FIG. 2, it is a temperature setting value). Image of SP and temperature measurement (PV) and circuit number (No. 3). In this case, the information of the control loops with loop numbers No. 1, No. 2, and No. 4 is not displayed.

In addition, the process of the above step S100 is the same as that performed by the conventional regulator.

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

The information acquisition unit 14 periodically acquires information of all control circuits from an information output device (for example, a universal regulator) (step S101 in FIG. 4). At this time, the information acquisition unit 14 only needs to obtain the physical quantity related to the control operation required for the control of the circuit numbers No. 1 to No. 4 for the determination of the alarm level described later (in this embodiment, the temperature measurement value) PV and temperature setpoint SP).

Then, in the level regulation information storage unit 10, a rule for determining the alarm level is stored in advance. Here, the following rules are stored: The larger the overheating temperature range (deviation range) of the temperature measurement value PV from the allowable temperature range set around the temperature setpoint SP in advance to the high temperature side, the higher the alarm level. When the upper limit value of the allowable temperature range is set to TH, the overheating temperature range is PV-TH.

The alarm level determination unit 11 obtains alarms and the like from the level regulation information storage unit 10 Based on the regulation, the alarm information received from the universal regulator, and the latest information of each control circuit obtained by the information acquisition unit 14 are used to extract the alarm level requirement from the control circuit where the alarm occurred. The control level of the control object determines the alarm level of the control loop that is extracted in accordance with the regulations (step S102 in FIG. 4). Here, the rule that the larger the overheating temperature is, the higher the alarm level is stored in the level regulation information storage unit 10. Therefore, the control circuit in which the temperature measurement value PV is higher than the allowable temperature range becomes a predetermined object of the alarm level. As described above, the temperature measurement value PV and the temperature setting value SP necessary for the determination of the alarm level are acquired by the information acquisition unit 14.

The alarm level display control unit 13 uses the loop information display control unit 12 as a display object control loop, and the alarm level determination unit 11 determines the alarm level of the control loop of the object having the predetermined alarm level, and displays the alarm level of the control loop of the object. 12 causes the display element to display an image (step S103 in FIG. 4).

At this time, the loop information display control unit 12 causes the image displayed by the display element 15 to be an image in which information of a plurality of control loops is displayed for each control loop on a divided area on the screen as shown in FIG. 1. At this time, the alarm level display control unit 13 displays the alarm level of the control circuit of a predetermined object having an alarm level in a region corresponding to the control circuit.

The processes in steps S100 to S103 are repeatedly performed until the operation of the display device is completed (YES in step S104 in FIG. 4).

FIG. 5 is a diagram showing a display example of this embodiment. The example of FIG. 5 is similar to that shown in FIG. 1, and in the screen 1 of the display element 15, the corresponding areas 1-1 to 1-4 on the screen each display a loop number so as to display a loop. Examples of alarms requiring urgency in the control circuits of circuit numbers No. 2 and No. 3 in the state of temperature setpoint SP and temperature measurement value PV of control circuits 1 to No.4. The alarm level display control unit 13 makes a request The background color of the area corresponding to the control loops No. 2 and No. 3 for the emergency alert changes, and the △ mark 2 indicating the occurrence of the alert displays a digit indicating the alert level. In the example of FIG. 5, the alarm level of the control loop with the loop number No. 3 is the first order, and the alarm level of the control loop with the loop number No. 2 is the second order.

In addition, the temperature set values SP1 to SP4 of the control circuits of the circuit numbers No. 1 to No. 4 are all set to the same value, that is, 100 ° C. In addition, the temperature measurement values PV1 to PV4 of the control loops No. 1 to No. 4 are PV1 = 101 ° C, PV2 = 106 ° C, PV3 = 104 ° C, and PV4 = 105 ° C, respectively.

If the allowable temperature range set with the temperature setpoints SP1 to SP4 as the center is ± 3 ° C, the temperature measurement value PV2 of the control circuit No. 2 deviates from the allowable temperature range SP2 ± 3 ° C to the high temperature side, which The overheating temperature range is 3 ° C. In addition, the temperature measurement value PV3 of the control circuit No. 3 deviates from the allowable temperature range SP3 ± 3 ° C to the high temperature side, and its overheating temperature range is 1 ° C. Similarly, the temperature measurement value PV4 of the control circuit No. 4 deviates from the allowable temperature range SP4 ± 3 ° C to the high temperature side, and the overheating temperature range is 2 ° C. Therefore, an urgent alarm is required in the control circuits with circuit numbers No. 2 to No. 4, and the alarm level determination unit 11 sets the alarm level of the control circuit with circuit number No. 2 to the first order and the circuit number No. The alarm level of control loop 4 is set to the second order, and the alarm level of control loop No. 3 is set to the third order. The result is shown in FIG. 6.

As described above, in the present embodiment, it is possible to add a display that is easy to grasp the alarm level to the information being displayed. That is, in a small-sized display device designed in a general-purpose screen style and used in a multi-loop system, it is possible to improve convenience for an operator.

In this embodiment, the larger the overheating temperature range is, the higher the alarm level is. The higher requirement is stored in the level requirement information storage unit 10, but the higher the temperature range (deviation range) in which the temperature measurement value PV deviates from the allowable temperature range to the low temperature side, the higher the alarm level requirement is stored in the level requirement information. Storing section 10. When the lower limit value of the allowable temperature range is set to TL, the insufficient temperature range is TL-PV. In the state as described above, the temperature setpoints SP1 to SP4 of the control loops with loop numbers No. 1 to No. 4 are all set to the same value, that is, 100 ° C. The temperature measurement values PV1 to PV4 of the control loops No. 1 to No. 4 are PV1 = 101 ° C, PV2 = 94 ° C, PV3 = 96 ° C, and PV4 = 95 ° C.

In the same manner as above, if the allowable temperature range set around the temperature setpoints SP1 to SP4 is ± 3 ° C, the temperature measurement value PV2 of the control loop of the circuit number No. 2 changes from the allowable temperature range SP2 ± 3 ° C to a low temperature. The lateral deviation is 3 ° C. In addition, the temperature measurement value PV3 of the control circuit No. 3 deviates from the allowable temperature range SP3 ± 3 ° C to the low-temperature side, and the temperature difference value thereof is 1 ° C. Similarly, the temperature measurement value PV4 of the control circuit of the circuit number No. 4 deviates from the allowable temperature range SP4 ± 3 ° C to the low temperature side, and the insufficient temperature range is 2 ° C. Therefore, when an urgent alarm is required for the control circuit with circuit numbers No. 2 to No. 4, the alarm level determination unit 11 sets the alarm level of the control circuit with circuit number No. 2 to the first order and sets the circuit number No. The alarm level of control loop 4 is set to the second order, and the alarm level of control loop No. 3 is set to the third order. The result is the same display as in FIG. 6.

Further, when the overheating temperature range is larger, the alarm level is higher, and the same overheating temperature range may be stored in the level regulation information storage section 10 as the temperature setting value SP becomes higher, the higher the alarm level. In the state where the above regulations are stored, the temperature setpoints SP1 to SP4 of the control loops with circuit numbers No.1 to No.4 are respectively set to SP1 = 100 ° C, SP2 = 105 ° C, SP3 = 110 ° C, and SP4 = 107. ℃. In addition, control loops for loop numbers No. 1 to No. 4 The measured temperature values PV1 ~ PV4 of the road are PV1 = 101 ℃, PV2 = 110 ℃, PV3 = 115 ℃, and PV4 = 112 ℃.

In the same manner as above, if the allowable temperature range set around the temperature setpoints SP1 to SP4 is ± 3 ° C, the temperature measurement values PV2, PV3 of the control loops of the loop numbers No. 2, No. 3, and No. 4 PV4 deviates from the allowable temperature range SP2 ± 3 ° C, SP3 ± 3 ° C, and SP4 ± 3 ° C to the high-temperature side, and its overheating temperature ranges are all 2 ° C. Therefore, an urgent alarm is required in the control circuits with circuit numbers No. 2 to No. 4. However, since the overheating temperature range is all 2 ° C, the alarm level determination unit 11 depends on the temperature setting values SP2, SP3, and SP4. On the other hand, the alarm level of the control circuit of the circuit number No. 3 is set to the first order, the alarm level of the control circuit of the circuit number No. 4 is set to the second order, and the alarm level of the control circuit of the circuit number No. 2 is set. 3rd overall.

[Second Embodiment]

Next, a second embodiment of the present invention will be described. This embodiment is an example corresponding to the above-mentioned inventive principle 2. FIG. 7 is a block diagram showing a configuration of a display device according to this embodiment, and the same components as those in FIG. 3 are denoted by the same reference numerals. The display device according to this embodiment includes a level regulation information storage unit 10, an alarm level determination unit 11, a loop 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 additional display control unit 16 and the alarm corresponding transition control unit 17; the alarm level additional display control unit 16 is a rule for setting the alarm level in a state where the circuit information display control unit 12 displays information of only one circuit. When an alarm of an object occurs in a control circuit other than the control circuit being displayed, an alarm of a control circuit other than the control circuit being displayed is made, etc. The level is additionally displayed on the image displayed by the loop information display control unit 12; this alarm corresponds to the transition control unit 17, and only one loop of information is displayed in the loop information display control unit 12, and the alarm level additional display control unit 16 is displayed. When the alarm level of a control circuit other than the control circuit being displayed is additionally displayed, when the operator operates the additional displayed alarm level, the screen is switched to display only the control level corresponding to the operated alarm level. Display information about the object. The display element 15a with a touch panel function constitutes an input unit capable of performing screen operations.

FIG. 8 is a flowchart illustrating the operation of the display device according to this embodiment. The operation of the loop information display control unit 12 is as described in the first embodiment (step 100 in FIG. 8). Here, as shown in FIG. 2, the information corresponding to the specific control circuit and the circuit number are enlarged on one screen and displayed on the display element 15 a.

The information acquisition unit 14a acquires the information required for the determination of the alarm level in the same manner as the information acquisition unit 14 of the first embodiment, and acquires a display item of the same kind as the currently displayed display item from an information output device (for example, a universal regulator). The information is used as the information of the entire control circuit (step S101a in FIG. 8). For example, if the temperature setpoint SP and temperature measurement value PV of the control loop with loop number No. 3 are currently displayed, it is only necessary to obtain the temperature setpoint SP and temperature measurement value PV for the control loop with loop number No.1 to No.4. .

The operations of the level regulation information storage unit 10, the alarm level determination unit 11, and the alarm level display control unit 13 are as described in the first embodiment (steps S102 and S103 in FIG. 8).

In a state where the loop information display control unit 12 enlarges and displays only one loop of information (YES in step S105 in FIG. 8), an alarm of a predetermined object having an alarm level occurs in a control other than the control loop being displayed. In the case of a circuit (step S106 in FIG. 8) (Yes)), the alarm level additional display control unit 16 displays the alarm level of a control circuit other than the control circuit being displayed on the image displayed by the circuit information display control unit 12 on the display element (step S107 in FIG. 4).

FIG. 9 is a diagram showing a display example of this embodiment. The example of FIG. 9 is the same as that of FIG. 2, and the information of a circuit (temperature set value SP and temperature measurement value PV in the example of FIG. 9) and the circuit number (No. 3) are enlarged and displayed on one screen. The following is an example of the case where the same alarm occurs as in the case of FIG. 6. As described above, the alarm level determination unit 11 sets the alarm level of the control circuit of the circuit number No. 2 to the first order, sets the alarm level of the control circuit of the circuit number No. 4 to the second order, and sets 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 on which the information of the control circuit of the circuit number No. 3 is being displayed. Marker 2 shows the alarm level as the third highest.

In addition, since an alarm occurs in a control circuit other than the control circuit being displayed (the control circuit with the circuit numbers No. 2 and No. 4), the alarm level additional display control unit 16 displays the alarm level in the first order on the display circuit number. The alarm Δ mark 3-1 of the control circuit No. 2 alarm is generated, and the alarm level 2 is displayed in the △ mark 3-2 indicating the alarm occurrence of the control circuit No. 4 control circuit.

FIG. 10 is a diagram showing another display example of this embodiment. The example in FIG. 10 is similar to FIG. 2 in that the information of a circuit (temperature set value SP and temperature measurement value PV in the example of FIG. 10) and the circuit number (No. 3) are enlarged and displayed on one screen. This is an example when an alarm does not occur in the control circuit of circuit number 3 and an alarm occurs in another control circuit.

For example, if the alarm level of the control circuit with the loop number No. 2 is the first order and the alarm level of the control circuit with the loop number No. 4 is the second order, the additional alarm level display control unit 16 displays the alarm level at the first order. The △ mark 3-1 indicating the occurrence of the alarm of the control circuit of the circuit number No. 2 is displayed in the △ mark 3-2 indicating the occurrence of the alarm of the control circuit of the loop number No. 4 in the second order. .

On the other hand, in a state where the loop information display control unit 12 enlarges and displays information of one loop, and the alarm level additional display control unit 16 displays additional alarm levels of control loops other than the control loop being displayed, the operator operates Where the alarm level is additionally displayed by the alarm level display control unit 16 (YES in step S108 of FIG. 8), the alarm response transition control unit 17 switches the screen to display only the control corresponding to the alarm level being operated. Information of the display object of the circuit (step S109 in FIG. 8).

When using the display element 15a with a touch panel function, the operator only needs to touch the place where the alarm level is displayed on the screen 1. For example, in the state shown in FIG. 9, if the operator touches the place of the △ mark 3-1, the alarm response transition control unit 17 switches the screen to enlarge and display only the control circuit corresponding to the alarm level 1 (for example, the circuit number). No. 2 control circuit) display object information.

At this time, as the information of the display object, it is only necessary to have the same kind of display item as the display item before the screen is switched. For example, if the temperature setpoint SP and temperature measurement value PV of the control loop No. 3 are displayed before switching the screen, the temperature setpoint SP and temperature measurement of the control loop No. 2 will be displayed on the screen after switching. Just PV.

However, when the information of the control circuit No. 3 is displayed, the alarm response transition control unit 17 does not have the information displayed on the screen after switching, so The control circuit of the screen display must obtain the latest information of the display item of the same type from the display item of the control circuit displayed on the screen before switching from the information acquisition unit 14a.

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

As described above, in the present embodiment, when there is a control loop with an alarm having a higher loop alarm level than the control loop being displayed, it is possible to shift to displaying the information of the control loop with a higher alarm level by a simple operation. status.

In addition, in the first and second embodiments, as the physical quantity related to the control operation, although the control quantity PV is exemplified, and the temperature has been described as an example, it is not limited to this. For the physical quantity alarm, as long as the deviation range of the physical quantity from the predetermined management range is larger, the requirement that the alarm level is higher is registered in the level regulation information storage unit 10, and the alarm level determination unit 11 is based on the regulations and information obtained from the level regulation information storage unit 10. The alarm level is determined based on the physical quantity detected by the universal regulator, and the present invention can also be applied to a controlled quantity PV other than the temperature, or a physical quantity other than the controlled quantity PV (for example, the deviation between the setpoint SP and the controlled quantity PV) .

In addition, in the first and second embodiments, the display device is described separately from the general-purpose regulator, but it goes without saying that the present invention can also be applied to a display device which is integrated with the general-purpose regulator.

In the display device described in the first embodiment, the level regulation information storage unit 10, the alarm level determination unit 11, the loop 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), computers with storage devices and interfaces, and programs that control these hardware resources. same In the display device described in the second embodiment, the level regulation 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 additional alarm level display are displayed. The control unit 16 and the alarm response transition control unit 17 can be implemented by a computer. The CPU of these computers executes the processing described in the first and second embodiments in accordance with a 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‧‧‧Level Regulation Information Storage Department

11‧‧‧Alarm level decision department

12‧‧‧Circuit information display control section

13‧‧‧Alarm level display control unit

14‧‧‧ Information Acquisition Department

15‧‧‧Display element

Claims (8)

A display device, comprising: a display element for image display; and a loop information display control unit that enables display object information related to a control loop of a display object in a plurality of control loops in a device to control an object Displayed on the display element; the level information storage unit pre-stores the rules that determine the alarm level; the information acquisition unit periodically obtains all control loop information from the information output device; the alarm level determination unit prescribes the information storage from this level The unit obtains the alarm level requirement, and based on the requirement, the alarm information in the device that controls the object, and the information obtained by the information acquisition unit, extracts control of the object that becomes the alarm level requirement in the control loop where the alarm occurred. And the alarm level display control unit, among the control loops of the display object, the alarm level determination unit determines the alarm level of the control object of the specified object in the control loop. Alarm level, displayed in the circuit 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. For example, the display device of the scope of application for a patent further includes an alarm level additional display control unit, and in a state where the loop information display control unit displays only one loop of information, it becomes a specified object of the alarm level. When an alarm occurs in a control circuit other than the control circuit being displayed, the alarm level of the control circuit other than the control circuit being displayed is additionally displayed on an image displayed by the display information control unit on the loop information display control unit. For example, the display device of the second patent application scope further includes: an input unit capable of operating the screen of the display element; and an alarm corresponding transfer control unit, in which the loop information display control unit displays information of only one loop In addition, when the alarm level additional display control unit causes the alarm level of a control circuit other than the control loop being displayed to be additionally displayed, when the operator operates the place where the alarm level has been additionally displayed, the screen is switched to display only Information of the display object of the control circuit corresponding to the alarm level being operated. For example, the display device according to any one of claims 1 to 3, in which the requirement for determining the alarm level is an alarm for the temperature measurement value PV, and the temperature measurement value PV is directed to the high temperature side relative to the allowable temperature range. Based on the deviation range, the alarm level is determined. The allowable temperature range is set in advance around the temperature setpoint SP. A display method, comprising: a loop information display control step, which displays information on a display object related to a control loop of a display object in a plurality of control loops in a device controlling the object on a display element; and an information obtaining step The information of the entire control circuit is periodically obtained from the information output device. The alarm level determination step refers to the storage of the level information storage unit for determining the required level for determining the alarm level to obtain the stored information. Based on the alarm information in the device and the information obtained in the information acquisition step, the control circuit of the alarm control circuit that has become a predetermined object of the alarm level is extracted, and the extracted control circuit is determined according to the regulations. And the alarm level display control step, so that the alarm level of the control loop of the object in the control loop of the display object that is specified as the alarm level in the alarm level determination step is displayed in In the image displayed by the display element in the loop information display control step, the rule for determining the alarm level is an alarm for a physical quantity related to the control action, and the alarm level is determined based on the deviation of the physical quantity from the predetermined management range. . For example, the display method of the scope of patent application No. 5 further includes an alarm level additional display control step. In the state where the loop information display control step causes only one loop of information to be displayed, it becomes a specified object of the alarm level. When an alarm occurs in a control circuit other than the control circuit being displayed, the alarm level of the control circuit other than the control circuit being displayed is additionally displayed in the image displayed on the display element in the loop information display control step. For example, the display method of the sixth item in the scope of patent application, further includes an alarm corresponding transfer control step, in which the information display control step of the circuit only displays information of one circuit, and in the alarm level additional display control step, the display When the alarm level of the control circuit other than the control circuit has been additionally displayed, when the operator operates the additional alarm level, the screen is switched to display only the display objects of the control circuit corresponding to the operated alarm level. Information. For example, the display method of any one of items 5 to 7 in the scope of patent application, wherein the requirement for determining the alarm level is an alarm for the temperature measurement value PV, and the temperature measurement value PV is directed to the high temperature side relative to the allowable temperature range. Based on the deviation range, the alarm level is determined. The allowable temperature range is set in advance around the temperature setpoint SP.