JP6390475B2 - Control device - Google Patents

Description

  The present invention relates to a control device that displays information related to control or monitoring of a control target.

  In recent production sites, various control devices have been introduced for automation. As an example of such a control device, a digital controller or the like that adjusts temperature or the like according to PID (Proportional Integral Derivative) control is known (see JP 2011-191139 A (Patent Document 1) and the like). In addition, there is an alarm device that obtains a state value to be controlled and that notifies an alarm when the obtained state value is out of a predetermined normal value range.

JP 2011-191139 A

  In a typical production site, a plurality of digital controllers and alarms as described above are arranged on the same control panel, and an operator can check the information displayed on each digital controller and alarm unit while producing information. The line will be operated.

  However, digital controllers and alarm devices are required to have a compact casing, but also require improved visibility and distinguishability. In particular, in a situation where a plurality of digital controllers and alarm devices are arranged side by side, it is necessary for the operator to understand at a glance which control object each device is associated with.

  For this reason, it is desired to improve the discriminability by using a limited display space of a digital controller or an alarm device.

  A control device according to an aspect of the present invention displays information related to control or monitoring of a control target. The control device includes a display unit and a control unit that controls display on the display unit. A control part is comprised so that the numerical value which shows the information regarding control or monitoring of a control object, and the identification object selected from the several identification objects from which the display mode prepared beforehand will be displayed on the same screen.

Preferably, the plurality of identification objects include a plurality of marks having different colors.
Preferably, the plurality of identification objects include a plurality of marks having different shapes.

  Preferably, the plurality of identification objects include a plurality of marks arranged at different positions.

  Preferably, the plurality of identification objects include a plurality of marks having different temporal changes in display mode.

  Preferably, the plurality of identification objects are identification marks for distinguishing the control device from other control devices.

  According to the control device according to the present embodiment, it is possible to improve the discrimination using a limited display space.

It is a schematic diagram explaining an example of the usage pattern of a digital controller. It is a schematic diagram which shows the apparatus structure of the digital controller which concerns on this Embodiment. It is a schematic diagram which shows the example of the 1st identification object which the digital controller which concerns on this Embodiment has. It is a schematic diagram which shows the example of the 2nd identification object which the digital controller which concerns on this Embodiment has. It is a schematic diagram which shows the example of the 3rd identification object which the digital controller which concerns on this Embodiment has. It is a schematic diagram which shows the example of the 4th identification object which the digital controller which concerns on this Embodiment has. It is a schematic diagram which shows the example of the 5th identification object which the digital controller which concerns on this Embodiment has. It is a schematic diagram which shows the example of the identification object in case the digital controller which concerns on this Embodiment controls a several control object. It is a flowchart which shows the setting procedure of the identification object in the digital controller which concerns on this Embodiment. It is a figure for demonstrating the automatic adjustment function of the digital controller which concerns on this Embodiment. It is a figure for demonstrating the setting list output function of the system containing the digital controller which concerns on this Embodiment. It is a figure which shows an example of the printing result produced | generated by the personal computer shown in FIG.

  Embodiments of the present invention will be described in detail with reference to the drawings. Note that the same or corresponding parts in the drawings are denoted by the same reference numerals and description thereof will not be repeated.

  In the following description, a digital controller is illustrated as an example of a control device that displays information related to control or monitoring of a control target, but the present invention can be similarly applied to an alarm device. Here, the digital controller acquires a control amount from the control target, and adjusts an operation amount to be given to the control target so that the acquired control amount matches a preset target value. On the other hand, the alarm device acquires the control amount from the control target and displays the acquired control amount. In addition, the alarm device displays or notifies whether the acquired control amount is within a preset range, whether the upper limit value / lower limit value has been reached, or the like. That is, the control device according to the present invention may be implemented as any device as long as it has a function of displaying information related to control or monitoring of a control target.

<A. Usage and issues>
FIG. 1 is a schematic diagram illustrating an example of a usage pattern of a digital controller. With reference to FIG. 1, for example, a system that controls three control objects (control objects 1 to 3) is assumed. In such a system, three digital controllers 10-1 to 10-3 are arranged side by side with respect to the common control panel 1. The digital controller 10-1 acquires a control amount 1 (for example, temperature) detected by a detection unit 1 (for example, a temperature sensor) provided in the control target 1, and obtains the value (PV: Process Value). While displaying, the difference with the preset target value 1 (SV: Set Value) is calculated, and the operation amount 1 (MV: Manipulated Variable) according to the difference is output to a control object. The same processing is executed for the control objects 2 and 3 for the digital controllers 10-2 and 10-3, respectively.

  For convenience of explanation, FIG. 1 shows an example in which three digital controllers are arranged. However, more digital controllers may be arranged side by side. In the case where a plurality of digital controllers are arranged in this way, the operator cannot grasp at a glance which control object each digital controller controls (or alarm monitoring). It's not easy. For example, if any abnormality occurs in any of the control targets, the operator needs to change the target value or manually change the operation amount. However, such highly urgent operation is performed. It is desired to be able to immediately identify the target digital controller.

  Therefore, the control device according to the present embodiment has been made in consideration of the above-described problems, and improves discrimination without increasing the display space as compared with the conventional control device. It is an object. More specifically, the control device according to the present embodiment includes a numerical value indicating information related to control or monitoring of a control target, and an identification object selected from a plurality of identification objects prepared in advance with different display modes. Display on the same screen.

  Here, the “identification object” implies an identification mark that is present separately from a numerical value indicating information related to control or monitoring of a control target and visually distinguishes each control device from other control devices. . In this specification, the “identification object” is typically defined by a combination of color, shape, pattern, and temporal change. It should be noted that the technical significance of the “identification object” will be understood in consideration of the contents described in this specification.

<B. Device configuration>
Next, the device configuration of the digital controller 10 according to the present embodiment will be described. FIG. 2 is a schematic diagram showing a device configuration of the digital controller 10 according to the present embodiment. Referring to FIG. 2, digital controller 10 includes an input circuit 110, an analog / digital conversion unit 112 (hereinafter also referred to as “A / D conversion unit 112”), a display unit 120, and an operation unit 122. , A communication interface 124, a control unit 100, a digital / analog conversion unit 114 (hereinafter also referred to as “D / A conversion unit 114”), and an output circuit 116.

  The input circuit 110 receives a detection signal from the detection unit, and outputs a voltage / current signal in a predetermined range. For example, when the detection unit is a thermocouple, the input circuit 110 includes a circuit that detects thermoelectromotive force generated at both ends thereof. Alternatively, when the detection unit is a resistance temperature detector, the input circuit 110 includes a circuit that detects a resistance value generated in the resistance temperature detector. Further, the input circuit 110 may include a filter circuit for removing high frequency components.

  The A / D conversion unit 112 converts an analog signal from the input circuit 110 into a digital signal and outputs the digital signal to the control unit 100.

  The operation unit 122 includes buttons and switches provided on the operation panel shown in FIG. 1, receives a user operation, and outputs information indicating the received user operation to the control unit 100. Typically, the operation unit 122 receives a target value (SV) from the user.

  The communication interface 124 exchanges various types of information with an external device (typically, a PLC (Programmable Logic Controller)). As an example of the system configuration, a target value may be input to the digital controller 10 from a PLC arranged at a higher level. In such a case, information (for example, SV) from the PLC is transmitted via the communication interface 124. And input to the control unit 100.

  The display unit 120 includes a display, an indicator, and the like provided on the operation panel shown in FIG. 1, and displays a numerical value indicating information related to control or monitoring of a control target. The display unit 120 further displays an identification object as described later in addition to the numerical value. Note that the display unit 120 is configured by a liquid crystal display panel or an organic EL (Electro Luminescence) display panel according to the display mode of the identification object. Alternatively, a combination of a 7-segment liquid crystal and an LED (Light Emitting Diode) may be used.

  The control unit 100 is an arithmetic entity for realizing processing related to display in the display unit 120 in addition to processing related to PID control, and includes a processor 102, a memory 104, and a program module 106. The processor 102 executes the program module 106 to realize processing as described later. At this time, the read program module 106 and data necessary for processing (such as PV and SV) are temporarily stored in the memory 104. As the processor 102, a general-purpose CPU (Central Processing Unit) or MPU (Micro-Processing Unit) may be used, or a DSP (Digital Signal Processor) directed to digital signal processing may be used. The program module 106 is stored in a nonvolatile storage medium such as a flash memory. The program module 106 may be configured to be able to update data via various recording media. Therefore, the program module 106 itself can be included in the technical scope of the present invention. The control unit 100 may be configured using an FPGA (Field-Programmable Gate Array). When the FPGA is adopted, the program module 106 may not be held.

  The D / A conversion unit 114 converts the digital signal indicating the operation amount calculated by the control unit 100 into an analog signal and outputs the analog signal to the output circuit 116.

  The output circuit 116 shapes the analog signal from the D / A converter 114 into a signal corresponding to the control target and outputs the signal. For example, when 0 to 100 [%] of the operation amount corresponds to a voltage signal of 0 to 10 [V], the output circuit 116 adjusts so that a signal in this voltage range is output. Alternatively, the output circuit 116 generates a PWM signal having a duty ratio corresponding to the value of the manipulated variable.

Hereinafter, some examples of the identification object according to the present embodiment will be described.
<C. First identification object>
FIG. 3 is a schematic diagram illustrating an example of a first identification object included in the digital controller 10 according to the present embodiment. Referring to FIG. 3, a numerical value display 12 for the control amount and a numerical value display 14 for the target value are arranged on the display unit 120 of the digital controller 10. The first identification objects 20-1 to 20-3 (hereinafter also collectively referred to as “first identification object 20”) illustrated in FIGS. 3A to 3C are a plurality of different colors. Are displayed on the same screen of the display unit 120 together with the numerical displays 12 and 14. “Mark” means a small area having a specific shape existing in an area where the numerical displays 12 and 14 do not exist in the screen of the display unit 120.

  Apparently, the first identification object 20 is an area that is part of the background of the numerical displays 12 and 14. The plurality of first identification objects 20 have different colors (saturation, brightness, and hue) so that they can be visually distinguished from each other. The first identification objects 20-1 to 20-3 illustrated in FIGS. 3A to 3C are red, yellow, and blue, respectively, and together with these identification objects, numerical display 12 and 14 will be displayed.

  In the case of realizing the display of the first identification object 20, it is preferable to use a device such as a liquid crystal display panel or an organic EL display panel as the display unit 120. Or you may implement | achieve using LED etc. which are arrange | positioned in the position corresponding to the 1st identification object 20. FIG.

  As described above, the display modes (display colors in the example of FIG. 3) are different from each other, and the first identification object 20 is displayed, so that each digital controller 10 is distinguished from the other digital controllers 10. . By distinguishing each digital controller 10 using the first identification object 20, the operator can intuitively grasp which control object is controlled by each digital controller 10.

<D. Second identification object>
In the first identification object shown in FIG. 3, the shapes of the marks with different colors are the same, but the shapes of the marks may be different from each other.

  FIG. 4 is a schematic diagram illustrating an example of a second identification object included in the digital controller 10 according to the present embodiment. Referring to FIG. 4, a numerical value display 12 for the control amount and a numerical value display 14 for the target value are arranged on the display unit 120 of the digital controller 10. The second identification objects 22-1 to 22-3 (hereinafter also collectively referred to as “second identification objects 22”) illustrated in FIGS. 4A to 4C are a plurality of different shapes. Are displayed on the same screen of the display unit 120 together with the numerical displays 12 and 14. More specifically, the second identification object 22-1 is a mark having a quadrangular outline, and the second identification object 22-2 is a mark having a circular outline, and the second identification object 22 -3 is a mark having a triangular outer shape. The shape of the second identification object 22 is not limited to these shapes, and an arbitrary shape can be used. However, since the second identification object 22 is used for the purpose of distinguishing each digital controller 10 from other digital controllers 10, it is preferable to use a set of shapes that can be distinguished from each other.

  Further, in addition to the form in which the shapes are different from each other, the colors (saturation, lightness, hue) may be different from each other so that they can be visually distinguished from each other. In the second identification object 22 shown in FIG. 4, the colors used for display are set to be different from each other. That is, the second identification objects 22-1 to 22-3 illustrated in FIGS. 4A to 4C are red, yellow, and blue, respectively. In addition to the shape, the colors can also be different from each other, so that the distinguishability can be further improved.

  In order to realize the display of the second identification object 22, it is preferable to use a device such as a liquid crystal display panel or an organic EL display panel as the display unit 120. Or you may implement | achieve using LED arrange | positioned in the position corresponding to the 2nd identification object 22. FIG.

  As described above, the second identification object 22 having different display modes (in the example of FIG. 4, the shape and the display color) is displayed together with the numerical displays 12 and 14, so that each digital controller 10 can be changed. From the digital controller 10. By distinguishing each digital controller 10 using the second identification object 22, the operator can intuitively grasp which control object is controlled by each digital controller 10.

<E. Third identification object>
In the first and second identification objects described above, the configuration in which the mark display position is substantially the same has been illustrated, but the mark display position may be further varied.

  FIG. 5 is a schematic diagram illustrating an example of a third identification object included in the digital controller 10 according to the present embodiment. Referring to FIG. 5, a numerical display 12 for the control amount and a numerical display 14 for the target value are arranged on the display unit 120 of the digital controller 10. The third identification objects 24-1 to 24-3 (hereinafter also collectively referred to as “third identification object 24”) illustrated in FIGS. 5A to 5C are arranged at different positions. Are displayed on the same screen of the display unit 120 together with the numerical displays 12 and 14. More specifically, the third identification object 24-1 is a mark placed on the upper side of the screen, and the third identification object 24-2 is a mark placed on the center of the screen, The identification object 24-3 is a mark arranged on the lower side of the screen. The shape of the third identification object 24 is not limited to these shapes, and an arbitrary shape can be used.

  Further, in addition to a form in which the positions where marks are arranged are different from each other, colors (saturation, brightness, hue) and shapes may be different from each other so that they can be visually distinguished from others.

  In order to realize the display of the third identification object 24, it is preferable to use a device such as a liquid crystal display panel or an organic EL display panel as the display unit 120. Or you may implement | achieve using LED etc. which are arrange | positioned in the position corresponding to the 3rd identification object 24. FIG.

  As described above, the third identification object 24 in which the positions to be arranged are different from each other is displayed together with the numerical displays 12 and 14, thereby distinguishing each digital controller 10 from the other digital controllers 10. By distinguishing each digital controller 10 using the third identification object 24, the operator can intuitively grasp which control object each digital controller 10 controls.

<F. Fourth identification object>
As the above-described first to third identification objects, static identification marks have been exemplified, but these identification marks may be changed with time.

  FIG. 6 is a schematic diagram illustrating an example of a fourth identification object included in the digital controller 10 according to the present embodiment. Referring to FIG. 6, a numerical value display 12 for the control amount and a numerical value display 14 for the target value are arranged on the display unit 120 of the digital controller 10. The fourth identification objects 26-1 to 26-3 illustrated in FIGS. 6A to 6C (hereinafter also collectively referred to as “fourth identification object 26”) are temporally large. And includes a plurality of marks with different temporal changes in display mode. The size of the fourth identification object 26 changes every predetermined period, that is, expands / contracts every predetermined period.

  More specifically, the fourth identification object 26-1 is a mark having a quadrangular outer shape, and its size is changed every predetermined period. The fourth identification object 26-2 is a mark having a triangular outer shape, and its size is changed every predetermined period. The fourth identification object 26-3 is a mark having an outer shape of a circle, and its size is changed every predetermined period.

  Although FIG. 6 shows a display example in which the mark is enlarged and reduced while keeping the same shape, the shape of the mark may be temporally different. For example, a mark having a rectangular outer shape may be displayed at a certain time, followed by a mark having a triangular outer shape, and this display switching may be repeated at a predetermined cycle.

  Furthermore, the colors (saturation, lightness, hue) and shape may be different from each other so that the displayed marks can be visually identified.

  As described above, by displaying the fourth identification object 26 with the temporal display mode different from each other together with the numerical displays 12 and 14, each digital controller 10 can be distinguished from the other digital controllers 10. To do. By distinguishing each digital controller 10 using the fourth identification object 26, the operator can intuitively understand which control object each digital controller 10 controls.

<G. Fifth identification object>
As the above-described fourth identification object, while the display mode is temporally changed and the change in the temporal display mode is illustrated as an example, examples of the change in the temporal display mode are illustrated. As an alternative, the display switching cycle may be different for each digital controller 10.

  FIG. 7 is a schematic diagram illustrating an example of a fifth identification object included in the digital controller 10 according to the present embodiment. Referring to FIG. 7, a numerical display 12 for the control amount and a numerical display 14 for the target value are arranged on the display unit 120 of the digital controller 10. The fifth identification objects 28-1 to 28-3 (hereinafter also collectively referred to as “fifth identification object 28”) illustrated in FIGS. 7A to 7C are temporally large. It is an identification mark that changes. More specifically, the fifth identification object 28 is repeatedly lit and extinguished every predetermined cycle, that is, blinks at a predetermined cycle.

  Here, the cycle in which each of the fifth identification objects 28-1 to 28-3 blinks is different from each other. As an example, the fifth identification object 28-1 repeats lighting and extinguishing in a cycle T1, and the fifth identification object 28-2 repeats lighting and extinguishing in a cycle T2 (> T1). The identification object 28-3 is repeatedly turned on and off at a cycle T3 (> T2). In this way, by changing the cycle of lighting and extinguishing, the blinking speed looks different for each digital controller 10, and each control device can be distinguished from other control devices.

  Furthermore, in addition to the display switching cycle (lighting / flashing cycle) being different from each other, the colors (saturation, brightness, hue) and shape may be different from each other so that they can be visually distinguished from each other. Good.

  As described above, the fifth identification object 28 having different temporal display modes is displayed together with the numerical displays 12 and 14, thereby distinguishing each digital controller 10 from the other digital controllers 10. To do. By dividing each digital controller 10 using the fifth identification object 28, the operator can intuitively understand which control object each digital controller 10 controls.

<H. Multiple control objects>
In the above-described first to fifth identification objects, a single control loop, that is, an identification object in the case of controlling a single control object is basically exemplified. However, the digital controller 10 has a plurality of control objects, respectively. You may make it control independently.

  FIG. 8 is a schematic diagram illustrating an example of an identification object when the digital controller 10 according to the present embodiment controls a plurality of control targets. FIG. 8 shows a case where the digital controller 10 controls two control objects (1ch and 2ch) as an example.

  Referring to FIG. 8, numerical values related to the 1ch and 2ch loops are displayed on display unit 120 of digital controller 10 while being temporally switched. That is, after the control amount numerical display 12-1 and target value numerical display 14-1 for the control target 1 are validated, the control amount numerical display 12-2 and the target value numerical display for the control target 2 are activated. 14-2 is activated. This alternate process is repeated. A channel indicating which control target the numerical value displayed at each time point is also displayed (channel display 16-1, 16-2).

  Even in the case where numerical displays for such a plurality of control targets are alternately displayed, by adding any one of the identification objects as described above, the operator can adjust the target digital controller 10 at each timing. It is possible to intuitively grasp which control object is being controlled.

  FIG. 8 shows a process of adding the first identification objects 20-1 and 20-2 as an example. As described above, the first identification object 20 is a small area having a specific shape that exists in the screen of the display unit 120, and the color (saturation, brightness, (Hue) is set to be different. That is, during a period in which the digital controller 10 displays a numerical value indicating information related to control or monitoring of the control target 1, the first identification object 20-1 is displayed together with the displayed numerical value. During the period when the numerical value indicating the information related to the control or monitoring of the control target 2 is displayed, the first identification object 20-2 is arranged together with the displayed numerical value. Not only the first identification object described above but also an arbitrary identification object may be selectively added.

  In this way, by displaying the identification object for identifying which control target each numerical value is displayed together with the numerical value displayed by the digital controller 10, the operator can easily identify a plurality of control targets. Even when one digital controller 10 is controlling, it is possible to intuitively grasp the control target that is the target at each timing.

<I. Setting procedure>
As each identification object described above, a selected one of a plurality of types of identification objects prepared in advance is validated. The identification object to be validated may be automatically selected, but generally, the set identification object is validated by setting in advance by the user. Hereinafter, an example of an identification object setting procedure will be described.

  FIG. 9 is a flowchart showing the identification object setting procedure in the digital controller 10 according to the present embodiment. The processing procedure shown in FIG. 9 is typically executed in the setting mode, and each step is realized by the processor 102 of the control unit 100 executing the program module 106 (see FIG. 2 for both).

  Referring to FIG. 9, when the setting mode is started, control unit 100 displays a message as to whether or not to set the color of the identification object on display unit 120, and waits for a user operation (step S100). Then, it is determined whether or not the user's operation is a selection operation (step S102).

  When the user operation is a selection operation (YES in step S102), the control unit 100 displays a list of colors to be displayed as the identification object and waits for the user operation (step S104). When the user selects any color, the control unit 100 sets the selected color as the color of the identification object (step S106). If the user operation is not a selection operation (NO in step S102), the processes in steps S104 and S106 are skipped.

  Subsequently, the control unit 100 displays a message as to whether or not to set the shape of the identification object to be displayed on the display unit 120, and waits for a user operation (step S108). Then, it is determined whether or not the user's operation is a selection operation (step S110).

  If the user operation is a selection operation (YES in step S110), control unit 100 displays a list of shapes to be displayed as identification objects and waits for the user operation (step S112). When the user selects any shape, the control unit 100 sets the selected shape as the shape of the identification object (step S114). If the user operation is not a selection operation (NO in step S110), the processes in steps S112 and S114 are skipped.

  Subsequently, the control unit 100 displays a message as to whether or not to set the position of the identification object to be displayed on the display unit 120, and waits for a user operation (step S116). Then, it is determined whether or not the user's operation is a selection operation (step S118).

  If the user operation is a selection operation (YES in step S118), control unit 100 displays a list of positions to be displayed as identification objects and waits for the user operation (step S120). When the user selects any position, the control unit 100 sets the selected position as the position of the identification object (step S122). If the user operation is not a selection operation (NO in step S118), the processes in steps S120 and S122 are skipped.

  Subsequently, the control unit 100 displays a message on the display unit 120 as to whether or not to set a temporal change of the identification object to be displayed, and waits for a user operation (step S124). Then, it is determined whether or not the user's operation is a selection operation (step S126).

  If the user operation is a selection operation (YES in step S126), control unit 100 displays a list of temporal changes that can be set for the identification object, and waits for the user operation (step S128). When the user selects any temporal change, the control unit 100 sets the selected temporal change as the temporal change for the identification object (step S130). Subsequently, the control unit 100 displays a list of cycles that can be set for the selected temporal change, and waits for a user operation (step S132). When the user selects any cycle, the control unit 100 sets the selected cycle with respect to the set temporal change (step S134). If the user operation is not a selection operation (NO in step S126), the processes in steps S128 to S134 are skipped. Then, the process ends.

  In the processing procedure shown in FIG. 9, it is assumed that all of the first to fifth identification objects are prepared in the digital controller 10, but only some identification objects may be prepared. Good. In this case, only a part of the processing shown in FIG. 9 is implemented.

<J. Automatic adjustment function>
In the digital controller 10 described above, the process of presenting the identification object set in advance manually is illustrated, but the identification objects to be presented do not overlap among the plurality of digital controllers 10 arranged in close proximity. A function for automatic adjustment may be implemented. The identification object automatic adjustment function will be described below.

  FIG. 10 is a diagram for explaining an automatic adjustment function of the digital controller 10 according to the present embodiment. As described above, a plurality of digital controllers 10 may be arranged with respect to the common control panel 1 (see FIG. 1). In such a case, the digital controllers 10 communicate with each other, and whether or not the identification objects set in advance do not overlap or whether each identification object is set so as not to overlap automatically. You may make it judge.

  Referring to FIG. 10, for example, each of the plurality of digital controllers 10 has a short-range wireless communication function (corresponding to the communication interface 124 shown in FIG. 1). To communicate in both directions. As the short-range wireless communication function, for example, a wireless LAN, Bluetooth (registered trademark), or the like can be employed.

  As an example of a specific exchange procedure, a plurality of digital controllers 10 determine identification objects at random, and information on identification objects determined with other digital controllers 10 arranged in close proximity is used. Exchange. If the identification objects set between the two digital controllers 10 match each other, one of them selects another identification object. For any of the digital controllers 10, the identification objects are not overlapped with each other by repeating such adjustment processing until the identification objects do not match with the other digital controllers 10 arranged close to each other. The digital controller 10 can be set.

  In the above-described processing example, the case where the digital controllers 10 communicate with each other ad hoc to adjust the duplication of identification objects has been exemplified. However, any one digital controller 10 or a plurality of digital controllers 10 (eg, PLC) may adjust the setting of each identification object.

<K. Setting list output function>
When identification objects are set in each of the plurality of digital controllers 10, it may be necessary to manage them. In such a case, a function for outputting a setting list of identification objects as described below is effective.

  FIG. 11 is a diagram for explaining the setting list output function of the system including the digital controller 10 according to the present embodiment. Referring to FIG. 11, a plurality of digital controllers 10-1 to 10-3 are connected to a network 230, and a personal computer 200 is also connected to this network 230. Instead of the network 230, a wireless communication function such as a wireless LAN may be used.

  The personal computer 200 collects setting information from each of the digital controllers 10-1 to 10-3 and generates a list of setting values in each digital controller 10. The personal computer 200 can also print out a list of setting values generated from the printer 210 as the print result 220.

  FIG. 12 is a diagram showing an example of a print result 220 generated by the personal computer 200 shown in FIG. Referring to FIG. 12, the print result 220 is identified in association with the model number (or tag name) of each digital controller 10 connected to the network 230, that is, each digital controller 10 arranged in the vicinity. A list of object types and their display modes is displayed.

  By using such a print result 220, the operator can more easily grasp the target control target.

<L. Advantage>
The control device (digital controller 10 or alarm device) according to the present embodiment has a configuration in which an identification object is further added without affecting the visibility or the amount of information regarding the control itself related to control or monitoring. adopt. As a result, even in a limited display space, it is possible to grasp at a glance the distinguishability of the digital controller 10, that is, which control object each digital controller 10 controls (or alarm monitoring). It becomes possible to do.

  In addition, it will be obvious that the first to fifth identification objects can be used in any combination from the above-described entire specification.

  The embodiment disclosed this time must be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 1 Control board, 10 Digital controller, 12, 14 Numerical display, 16 channel display, 20 1st identification object, 22 2nd identification object, 24 3rd identification object, 26 4th identification object, 28 5th Identification object, 100 control unit, 102 processor, 104 memory, 106 program module, 110 input circuit, 112 analog / digital conversion unit (A / D conversion unit), 114 digital / analog conversion unit (D / A conversion unit), 116 output circuit, 120 display unit, 122 operation unit, 124 communication interface, 200 personal computer, 210 printer, 220 print result, 230 network.

Claims (6)

A control device that displays information related to control or monitoring of a control target,
A display unit;
A control unit for controlling display on the display unit ;
A communication unit that communicates with other control devices ,
The control unit is configured to display a numerical value indicating information related to control or monitoring of a control target and an identification object selected from a plurality of identification objects having different display modes prepared in advance on the same screen ,
Wherein the control unit via the communication unit that communicates with other control units, Ru is configured to select different identification object identification object selected in another control device, the control device.   The control device according to claim 1, wherein the plurality of identification objects include a plurality of marks of different colors.   The control device according to claim 1, wherein the plurality of identification objects include a plurality of marks having different shapes.   The control device according to claim 1, wherein the plurality of identification objects include a plurality of marks arranged at different positions.   The control device according to any one of claims 1 to 4, wherein the plurality of identification objects include a plurality of marks having different temporal changes in display mode.   The control device according to claim 1, wherein the plurality of identification objects are identification marks for distinguishing the control device from other control devices.