JP5042898B2 - Controller - Google Patents

Description

  The present invention relates to a controller including a display that selectively displays a plurality of types of information to be monitored.

  As this type of controller, for example, there is a temperature controller that controls the operation of a controlled object such as a heating / cooling device based on a measured value (PV value) of a temperature measured by a temperature sensor. In this temperature controller, in addition to the PV value, a control value for a control object determined under PID control, for example, according to a preset set value (SP value) as a control target or a deviation of the PV value from the SP value. A display for selectively displaying a plurality of types of operation information to be monitored such as output values (MV values) is provided, and the display has a plurality of operation display screens composed of these types of operation information. It is configured to be able to selectively switch and display.

And what was provided with the changeover switch which switches and displays the several SP value registered beforehand on the display is known (for example, refer patent document 1).
Japanese Patent Laid-Open No. 11-175101

However, although the SP value can be switched in the above prior art, since the display items of each operation display screen are specified in advance, the controller user configures the display screen configuration according to the type of the monitoring target. It cannot be customized freely.
In addition, the above prior art does not give special consideration to the screen configuration and screen transition of the display when the monitoring target is in an abnormal state. Challenges remain.

  This invention is made | formed in view of such a subject, and it aims at providing the controller which can improve a user's convenience significantly.

In order to achieve the above object, the controller according to claim 1 comprises a display and a display screen switching means for selectively switching and displaying a display screen composed of a plurality of types of information to be monitored on the display. And a display setting means for setting and registering a plurality of display items on the display screen in response to an instruction from the outside and / or the inside. The display setting means is provided on a display unit of the display screen. , Multiple display items on multiple operation display screens for displaying monitored operation information, multiple display items on multiple special display screens for displaying monitored target abnormality information, and special display from operation display screen A plurality of transition factor items on the display screen, and an operation display screen and a special display screen associated with the transition factor item are set, and the display screen switching means receives an instruction from the outside and / or inside, In multiple operation display screens Cyclically switched in a predetermined order the operation screen to be displayed on the display unit, upon receiving a transition factor is characterized by switching the operation display screen in the special display screen associated with the item of the transition factors.

Furthermore, in the invention described in claim 2 , in claim 1 , the display setting means includes a plurality of return factor items from the special display screen to the operation display screen, an operation display screen associated with the return factor item, and a special display item. set the display screen, the display screen switching means receives the restoration factor is characterized by perating the Came ra switching to the operation display screen associated with the special display screen in the item of return factor.
According to a third aspect of the present invention, the display setting means according to the second aspect, wherein the display setting means allows the return from the special display screen to the operation display screen after the time corresponding to the type of the return factor has elapsed. set of items, the display screen switching means receives the course of the return specified time, is characterized in that perating the Came ra switching to the operation display screen associated with the special display screen in the item of return factor.

Further, in the invention according to claim 4 , in claim 2 or 3 , the display setting means holds the transition factor once generated, and displays the operation display from the special display screen by releasing the held state of the held transition factor. The latch release factor item that enables the return to the screen is set, and the display screen switching means receives the latch release factor and switches the special display screen to the operation display screen associated with the return factor item. It is said.
Furthermore, in the invention described in claim 5 , in any one of claims 2 to 4 , the display screen switching means displays a display on a display from a plurality of special display screens in response to a transition factor and / or a return factor. is characterized in the cyclically switched Turkey in a predetermined priority order according to the type of special display screen transition factors and / or return factor to.

  Therefore, according to the controller of the present invention, the user who uses the controller has the display setting means for setting the display items on the display screen in response to an instruction from the outside and / or the inside. Since the screen configuration of the display can be freely customized according to the type of the monitoring target, the convenience for the user can be greatly improved.

Hereinafter, a controller according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a schematic configuration of a controller according to this embodiment. As this type of controller, for example, a heating / cooling device or the like based on a measured value (PV value) of a temperature measured by a temperature sensor. There is a temperature controller that controls the operation of the controlled object. In this temperature controller, in addition to the PV value, a control value for a control object determined under PID control, for example, according to a preset set value (SP value) as a control target or a deviation of the PV value from the SP value. A temperature controller body 10 that executes a predetermined process based on a plurality of types of information to be monitored such as an output value (MV value), and a plurality of types of information to be monitored that are handled by the temperature controller body 10 are selectively selected. And a display 20 for displaying.

  The temperature controller main body 10 is provided with a control calculation unit 1 mainly composed of a microprocessor or the like. The control calculation unit 1 receives information to be monitored via the data input unit 2 and controls the operation of the control target. Information is output via the data output unit 3. Further, the control calculation unit 1 includes an abnormality detection means 4 for detecting an abnormality to be monitored and outputting abnormality information via a temperature sensor, a latch means 5 for holding and outputting abnormality information once generated, and the latch And a latch release means 6 for releasing the holding state by the means 5.

  In addition, the temperature controller body 10 is provided with a display controller 7 that selectively displays a plurality of types of information handled by the temperature controller body 10 using the display 20. Further, the temperature controller main body 10 receives a command from the outside and displays a display setting unit (display setting means) 8 for setting and registering display items of a display screen composed of a plurality of types of information and a display 20 A display screen switching section (display screen switching means) 9 for selectively switching the display screen to be displayed is provided, and these display setting section 8 and display screen switching section 9 control the operation of the display control section 7. .

  Further, after the display screen switching unit 9 changes and sets the display screen to be displayed on the display device 20, the display control unit 7 is instructed to return to another display screen after a predetermined return specified time has elapsed. A timer management unit 11 is provided as a return instruction means. As another return instruction means, there is an instruction to return the display screen after the holding state by the latch means 5 is released by the latch release means 6.

On the other hand, the display 20 includes a multi-digit number / character display unit incorporated in a front panel of a case (not shown) in which the temperature controller main body 10 is built, a light-emitting device for status display, and the like.
Specifically, as shown in the configuration example of the front panel of the display device 20 in FIG. 2, the first display unit for displaying a plurality of digits (for example, five digits) numbers and characters on the upper part of the front panel. 21 is provided, and a second display unit 22 for displaying 5-digit numbers / characters slightly smaller than the first display unit 21 and an auxiliary for displaying 3-digit characters / numbers are provided in the middle stage. A display unit 23 is provided.

  In addition, a plurality of mode indicator lamps 24 and a loop number indicator lamp 25 for displaying predetermined information are abbreviated (abbreviated) are provided on both sides of the first display portion 21 on the front panel, and a second display is provided. A user function indicator lamp 26 for displaying predetermined information in abbreviations (abbreviated) is provided on the side of the unit 22. Further, a plurality of types of mode display lamps 27 relating to data output are provided below the second display section 22 on the front panel, and a multi-status display lamp 28 is provided for displaying various status information in a bar shape. It has been. The lower part of the front panel has cursor keys, a number of operation keys including operation setting keys for setting various operation modes, and a loader jack for connecting the temperature controller to an external device such as a personal computer. Is provided.

  The temperature controller configured in this manner is displayed on the display frames as the display units 21, 22, and 23 of the display device 20 via the display screen switching unit 9. A plurality of display screens such as an operation display screen for displaying monitored operation information such as SP value and MV value and a special display screen for displaying abnormality information detected by the abnormality detecting means 4 are selectively displayed. To do.

  Specifically, as shown in the example of the display screen change form in FIG. 3, the plurality of driving display screens 1 to N correspond to driving display identification frames 1 to n for identifying driving information, respectively. Each time a display key, which is one of the operation keys provided on the front panel, is operated, or a digital input (DI signal). ) Under the control of the display screen switching unit 9 in accordance with an external instruction such as communication, etc., the display 20 is cyclically switched and displayed in a predetermined order.

  On the other hand, each of the plurality of special display screens 1 to M includes special display identification frames 1 to m for identifying abnormality information and special display value frames 1 'to m' for displaying corresponding display values. The screen transition between the operation display screens 1 to N and the special display screens 1 to M is made by an external instruction including a transition factor in response to the abnormality information and a return factor in response to the disappearance of the abnormality information. It is performed by switching unambiguously between a predetermined operation display screen and a special display screen corresponding thereto under the control of the display screen switching unit 9.

The data table of the display pattern of the operation display screen and the special display screen configured in this way is registered together in a memory bank which is a display registration bank, and this display registration bank is stored in the display setting unit 8.
As shown in the schematic configuration of the display registration bank in Table 1 below, the display registration bank manages display patterns on the display screen with display registration numbers 1 to L (N, M ≦ L) for each display pattern. Thus, the items of main setting, sub setting, and lighting state can be set for each display frame such as the display identification frame and the display value frame which are the display units 21, 22 and 23.

The main setting item is set by selecting, for example, a number from 0 to 3 according to a numerical value. 0: PV value, 1: SP value, 2: MV value, 3: Sub-setting item of the first display section It is possible to select from a specified character string.
The character string specified in the sub-setting item is changed by, for example, pressing the up (∧) key or down (∨) key of the cursor keys, and the forward (>) key or reverse (< ) The display position to be changed by pressing the key is configured to slide to the left and right, and the lighting state item can be selected from, for example, 0: lit, 1: flashing, depending on the numerical value.

A display registration procedure for setting and registering the display pattern of the display screen in the display registration bank under the control of the display setting unit 8 will be described below with reference to the flowchart shown in FIG.
First, in order to start display registration, the temperature controller is turned on, and the display key is pressed to shift to the operation display screen and shift to S1 (hereinafter, S represents a step).

In S1, the bank switching screen is displayed by pressing and holding the para key, which is one of the operation keys provided on the front panel, on the operation display screen, and the process proceeds to S2.
In S2, the display registration bank screen is selected by pressing the up (∧) key or the down (∨) key of the cursor keys on the bank switching screen, and the process proceeds to S3.
In S3, by pressing the enter key which is one of the operation keys provided on the front panel on the display registration bank screen, the display registration bank is entered and the process proceeds to S4.

In S4, the display pattern is changed by pressing the forward (>) key or the backward (<) key in addition to the up (∧) key or down (∨) key of the cursor keys in the display registration bank. By pressing the key, the number for the display frame is started and the process proceeds to S5.
In S5, after setting detailed items of a specific display pattern in the display registration bank, the enter key is pressed and the process proceeds to S6.

In S6, it is determined whether or not the display registration is completed. If it is determined that the display registration is completed when the determination result is true (Yes), this procedure is terminated, and the determination result is displayed as false (No). If it is determined that registration has not been completed, the process returns to S4 again to continue display registration.
Next, Table 2 below shows a schematic configuration of an operation display setting bank managed by assigning operation display numbers 1 to N corresponding to the operation display screens 1 to N, respectively. Is stored in the display setting unit 8.

  In the operation display setting bank, an item of display screen number for determining the display pattern of the operation display screen can be set for each of operation display numbers 1 to N. This item is a number of 0 to L, for example, by a numerical value. 0: No display (This operation display screen jumps, that is, does not use), 1-L: Designates one of the display registration numbers of the display pattern preset in the display registration bank Thus, the user of the temperature controller can freely set the number of operation display screens that can be switched cyclically, the order of the screens, and the like.

Also, in the operation display setting bank, for each operation display number 1 to N, set the item of transition factor of screen transition from the operation display screen to the special display screen and the special display number at the time of abnormality that is the screen transition destination Can do.
The item of the transition factor (that is, an instruction from the outside and / or the inside) is set by selecting a number from 0 to 10, for example, by a numerical value. 0: None (that is, no transition) , 1: PV upper limit alarm, 2: PV lower limit alarm, 3: PV change alarm, 4: Event ON, 5: Event OFF, 6: DI signal up edge, DI signal down edge as transition factors from outside the instrument 8: During RS485 communication, the key operation factor can be selected from 9: display key press, 10: enter key press.

The abnormal special display number is set by selecting a number from 0 to M, for example, by a numerical value, and by specifying any of 0: None (that is, no transition), 1-M: Special display number Whether or not to change from the operation display screen to the special display screen at the time of abnormality, and when changing, the user can freely set the transition factor and destination.
Hereinafter, the operation display setting procedure for setting the display items of the operation display screen under the control of the display setting unit 8 will be described in detail with reference to the flowchart shown in FIG. It should be noted that the procedure overlapping the display registration procedure of FIG. 4 indicates the step number of the flowchart of the display registration procedure, and the description thereof is omitted.

First, in order to start the operation display setting, the temperature controller is turned on, and the display key is pressed to shift to the operation display screen, and the process proceeds to S11.
In S11, the process proceeds to S12 by the same operation as in S1.
In S12, the process proceeds to S13 by the same operation as in S2.
In S13, by pressing the enter key on the operation display setting bank screen, the operation display setting bank is entered and the process proceeds to S14.

In S14, the operation display screen is changed by pressing the forward (>) key or the reverse (<) key in addition to the up (∧) key or down (∨) key of the cursor keys in the operation display setting bank. When the enter key is pressed, the number for the display frame is started, and the process proceeds to S15.
In S15, after setting the detailed items of a specific operation display screen in the operation display setting bank, the enter key is pressed and the process proceeds to S16.

In S16, it is determined whether or not the display setting has been completed. If it is determined that the determination result is true (Yes) and the display setting has been completed, this procedure ends, and the determination result is displayed as false (No). If it is determined that the setting has not been completed, the process returns to S14 again to continue the display setting.
Next, Table 3 below shows a schematic configuration of a special display setting bank in which each special display screen 1 to M is managed with special display numbers 1 to M corresponding thereto. Is stored in the display setting unit 8.

  In the special display setting bank, a display screen number item for determining the display pattern of the special display screen can be set for each of the special display numbers 1 to M. This item is a number of 0 to L, for example, by a numerical value. 0: No display (this special display screen is ignored, ie, not used), 1 to L: Designate one of the display registration numbers of the display patterns preset in the display registration bank By doing so, the user can freely set the display pattern of the special display screen which is the transition destination at the time of abnormality.

  In the special display setting bank, for each of the special display numbers 1 to M, the item of the return factor of the screen return from the special display screen to the operation display screen, and the return factor is the condition of the return specified time using the timer management unit 11 The return designated time when the latch means 5 is used as the return factor, the item of the latch release factor by the latch release means 6 when the latch means 5 is used, and the return operation display number that is the return destination of the operation display screen when the return factor is established Can be set.

The return factor item is set by selecting, for example, a number from 0 to 12, depending on the number. 0-10: Same as the transition factor item in the operation display setting bank, 11: Counting the return specified time as the return factor. Use of the timer management unit 11 or 12: use of the latch means 5 as a return factor can be selected.
The item of the latch release factor is set by selecting, for example, a number from 0 to 10 according to the numerical value. 0: None (that is, the latch is not released), 1-10: The transition factor item of the operation display setting bank The same can be selected. Furthermore, the return operation display number is set by selecting a number from 0 to N, for example, by a numerical value, and 0: None (that is, no transition), 1 to N: By specifying any of the operation display numbers Whether or not to transition from the special display screen to the operation display screen at the time of return, in the case of transition, the transition factor and transition destination can be freely set by the user.

Hereinafter, with reference to the flowchart shown in FIG. 6, a special display setting procedure for setting display items on the special display screen under the control of the display setting unit 8 will be described. It should be noted that the procedure overlapping the display registration procedure of FIG. 4 indicates the step number of the flowchart of the display registration procedure, and the description thereof is omitted.
First, in order to start the special display setting, the temperature controller is turned on, and the display key is pressed to shift to the operation display screen and shift to S21.

In S21, the process proceeds to S22 by the same operation as S1.
In S22, the process proceeds to S23 by the same operation as S2.
In S23, when the enter key is pressed on the special display setting bank screen, the special display setting bank is entered and the process proceeds to S24.
In S24, the special display screen is changed by pressing the forward (>) key or the reverse (<) key in addition to the up (∧) key or down (∨) key of the cursor keys in the special display setting bank. When the enter key is pressed, the number for the display frame is started and the process proceeds to S25.

In S25, after setting detailed items of a specific special display screen in the special display bank, the enter key is pressed and the process proceeds to S26.
In S26, it is determined whether or not the display setting is completed. If it is determined that the determination result is true (Yes) and the display setting is completed, this procedure is terminated, and the determination result is displayed as false (No). If it is determined that the setting has not been completed, the process returns to S24 again to continue the display setting.

As described above, in the present embodiment, the temperature controller receives the external and / or internal instructions and includes the display setting unit 8 for setting and registering the display items of the operation display screen and the special display screen, thereby enabling the user to Can freely customize the screen configuration of the display 20 according to the type of the monitoring target, and can greatly improve the convenience for the user.
Specifically, the operation display screen of the display device 20 can be freely switched according to the type of operation information to be monitored in response to an operation by the display key.

In response to an instruction from a predetermined transition factor, the predetermined operation display screen of the display 20 is automatically switched to a predetermined special display screen in accordance with the type of abnormality information to be monitored detected by the abnormality detection means 4. Is possible.
Furthermore, upon receiving an instruction from a predetermined return factor, the predetermined special display screen of the display device 20 can be automatically switched to the predetermined operation display screen in accordance with the elimination of the abnormality information to be monitored.

  In addition, the return instruction means serving as a return factor is a predetermined instruction after a predetermined return specified time managed by the timer management unit 11 has elapsed or after the holding state by the latch means 5 is released by the latch release means 6. Instructs the return from the special display screen to the predetermined operation display screen, so that not only the screen configuration of the display 20 but also the screen transition can be freely customized according to the type of monitoring target and abnormality information. Therefore, user convenience can be further improved.

The description of one embodiment of the present invention is finished above, but the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above embodiment, in response to an instruction from the return instruction means, the special display screen displayed on the display device 20 is uniquely switched to a predetermined operation display screen corresponding to the special display screen. However, for example, in response to a change in abnormality information, a plurality of special display screens may be cyclically switched in a predetermined order and then returned to the operation display screen. Since it is possible to return to the driving display screen after a plurality of alerts, it is preferable because the convenience for the user can be further improved.

In the above embodiment, the display registration bank manages each display pattern with a display registration number. However, for example, a plurality of display patterns may be grouped and managed for each group. In this case, since the operation display screen and the special display screen can be managed and registered as a group, the convenience of the user can be further improved, which is preferable.
Furthermore, if grouping of such display screens is possible, the operation display screens and special display screens can be generated by initializing and registering the groups that will be the initial and basic states of the display screens in advance. Therefore, user convenience can be further improved.

It is a figure which shows schematic structure of the temperature controller which concerns on one Embodiment of this invention. It is a figure which shows the structural example of the front panel of the indicator of FIG. It is a figure which shows the example of a change form of the display screen controlled by the display screen switching part of FIG. 2 is a flowchart showing a display registration procedure for setting and registering a display pattern of a display screen in a display registration bank under the control of the display setting unit of FIG. It is a flowchart which shows the driving | operation display setting procedure for setting the display item of a driving | running display screen in a driving | operation display setting bank under control of the display setting part of FIG. It is a flowchart which shows the special display setting procedure for setting the display item of a special display screen in the special display setting bank under control of the display setting part of FIG.

Explanation of symbols

4 Abnormality detection means 5 Latch means 6 Latch release means (return instruction means)
8 Display setting section (display setting means)
9 Display screen switching section (display screen switching means)
11 Timer management unit (return instruction means)
20 Display

Claims (5)

A controller comprising a display and a display screen switching means for selectively switching and displaying a plurality of display screens composed of a plurality of types of information to be monitored on the display,
Display setting means for setting and registering a plurality of display items on the display screen in response to an instruction from outside and / or inside;
Equipped with,
The display setting means is for displaying a plurality of display items of a plurality of operation display screens for displaying the operation information of the monitoring target and the abnormality information of the monitoring target on the display unit of the display screen. A plurality of display items of the plurality of special display screens, a plurality of transition factor items from the operation display screen to the special display screen, the operation display screen and the special display screen associated with the transition factor item And set
The display screen switching means cyclically switches the operation display screen to be displayed on the display unit from a plurality of the operation display screens in a predetermined order in response to an instruction from outside and / or inside. In response to the transition factor, the controller switches the operation display screen to the special display screen associated with the item of the transition factor . The display setting means sets a plurality of return factor items from the special display screen to the operation display screen, and the operation display screen and the special display screen associated with the return factor item,
The display screen switching means, said receiving restoration factor, controllers according to pre-SL special display screen in claim 1, characterized in that perating the Came ra switch on the operation display screen associated with the item of the return factor . The display setting means sets an item of a return designation time that enables a return from the special display screen to the operation display screen after a lapse of time according to the type of the return factor,
The display screen switching means, the receiving passage of return specified time, wherein the pre-SL special display screen to claim 2, characterized in that perating the Came ra switch on the operation display screen associated with the item of the return factor Controller. The display setting means holds the transition factor once generated, and releases the latch release factor that enables the return from the special display screen to the operation display screen by releasing the held state of the transition factor. Set the item,
The display screen switching means receives the latch release factors, wherein the special display screen to claim 2 or 3, characterized in that <br/> to switch to the operation display screen associated with the item of the return factor Controller. The display screen switching means receives the transition factor and / or the return factor , and displays the special display screen to be displayed on the display unit from the plurality of special display screens as the transition factor and / or the return factor. Controller according to any one of claims 2 to 4, characterized in the Turkey switched cyclically in a predetermined priority order in accordance with the type.

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