JPH0863201A - Process loop controller - Google Patents

Abstract

PURPOSE: To provide the process loop controller which can select a necessary console panel according to the situation. CONSTITUTION: The process loop controller which displays various data regarding a controlled system and enables plural kinds of operation command to be inputted is provided with a touch panel 1 which displays the data and is used to input the operation commands, a display pattern storage means 15 which stores display patterns corresponding to the kinds of the operation commands, panel switching means 3 and 15 which display a specified display pattern on the touch panel according to an external panel switching command, and operation command detecting means 2, 12, and 13 which detect the operation command corresponding to the display pattern in response to touch operation one while the display pattern is displayed on the touch panel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a process loop controller for industrial instrumentation, etc.
The present invention relates to a process loop controller with an improved operation panel for making changes and the like.

[0002]

2. Description of the Related Art A process loop controller used for controlling a plant process is provided with a manual control mode in addition to an automatic control mode, and an operator can change a set value SV and a manipulated variable MV as required. You can do it.

The change of the mode and the change of the set value SV and the manipulated variable MV by the manual mode are performed by the operation panel provided on the front surface of the process loop controller. FIG. 7: is a figure which shows an example of a structure of the operation panel in the conventional process loop controller.

In the process loop controller shown in FIG. 7, the operator uses the M mode key 31 to set the process loop controller to the manual mode. In the process loop controller switched to the manual mode, the operation amount MV or the set value SV can be changed by the MV key 32 and the SV key 33. The operator controls the process by manipulating the required amount.

Further, in such a process loop controller, there are several loop controllable numbers of the controller, and when the operator wants to manually operate a plurality of loops, the operator uses the loop key 34 for switching the loop to switch between the first loop and the first loop. The operation is performed by switching between 2 loops and changing the settings.

Further, at this time, the set value SV and the manipulated variable MV
The control amount PV and the like are displayed on the bar graph 35.
Further, the operator can change the process loop controller to the custod mode or the automatic mode by using the C / A key 36, if necessary.

[0007]

However, even if there are several loop controllable numbers of the controller,
Since there is only one set of MV key 32 and SV key 33 that can be operated at a time, only one loop can be manually operated at a time.

Therefore, when it is desired to operate two or more loops at the same time, the key operation becomes complicated and the set value S
There is a problem that necessary setting work for V, manipulated variable MV and the like tends to be delayed.

The present invention has been made in consideration of such circumstances, and an object of the present invention is to provide a process loop controller capable of selecting a necessary operation panel according to the situation.

[0010]

In order to solve the above-mentioned problems, the invention corresponding to claim 1 is to provide a process loop controller capable of displaying various data concerning a controlled object and inputting a plurality of kinds of operation commands, A touch panel for displaying data and inputting operation commands, display pattern storage means for storing a display pattern corresponding to the type of operation command, and a display pattern designated according to a panel switching command from the outside on the touch panel. A process loop controller provided with panel switching means for displaying and operation command detecting means for detecting an operation command corresponding to the display pattern in response to a touch operation performed while the display pattern is displayed on the touch panel. .

The invention according to claim 2 controls the operation of a plurality of types of controlled objects, displays various data relating to the controlled objects, and displays the data in a process loop controller capable of inputting an operation command, A touch panel for inputting an operation command, a display pattern storage unit for storing a display pattern corresponding to each control target, and a control target designated according to a panel selection command designating at least two control targets from outside. Panel switching means for simultaneously displaying each display pattern corresponding to the touch panel,
Data display means for displaying the data of each control target corresponding to the display pattern in the state where each display pattern is displayed on the touch panel, and the touch performed while the display pattern is displayed on the touch panel It is a process loop controller provided with an operation command detecting means which detects an operation command corresponding to a display pattern of a touch operation target in response to an operation.

[0012]

Therefore, first, in the process loop controller of the invention according to claim 1, the operation command detecting means accepts a change in a set value, an operation amount, various process amounts or the like from an operation portion on the touch panel. There is.

The display pattern storage means stores various display patterns on the touch panel. When a panel switching command is received, the panel switching means changes the display pattern on the touch panel to a pattern according to the panel switching command. . Further, the input from the operation section of the touch panel after the change can be accepted by the operation command detecting means.

Therefore, if the pattern is prepared in advance, the display section on the panel of the controller can be operated with one touch.
The operation unit can be changed, and an optimum controller panel pattern can be obtained according to the situation.

Further, in the process loop controller of the invention according to claim 2, in addition to the same operation as that of the invention according to claim 1, when there are a plurality of types of control objects, when a panel selection command is received, panel switching is performed. The display pattern is changed by the means to a pattern corresponding to a plurality of types of controlled objects.

Further, the data display means displays the data from each controlled object on the touch panel. Also,
When the display pattern corresponds to multiple types of controlled objects,
The operation command detecting means enables simultaneous operation of a plurality of types of controlled objects. Therefore, even when it is necessary to control a plurality of sets of process loops at the same time, this can be dealt with.

[0017]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a process loop controller of the present embodiment, and FIG. 2 is a diagram showing an example of an operation panel provided on the front surface of the process loop controller of the present embodiment.

The process loop controller 30 is
The touch panel 1, the touch panel operation driver 2, the touch panel display driver 3, and the CPU 4 are roughly classified.
And the process amount input / output unit 5.

The touch panel 1 is capable of changing a set value SV, an operation amount MV, etc. by accepting various inputs from an operator and a display unit 6 for displaying various process amounts sent from the CPU 4 via the touch panel display driver 3. SV / MV operation amount changing unit 7 consisting of various manual operation keys
And a panel selection unit for changing the pattern of the operation panel to another pattern preset in the CPU 4 via the touch panel display driver.

In FIG. 2, the display unit 6 displays the set value SV,
A bar graph 6a showing set values and current values of the manipulated variable MV and the controlled variable PV, and an alarm display 6b are provided. In addition, the SV / MV operation amount changing unit 7 uses the SV key 7
a, manual operation keys such as MV key 7b, etc. are provided. Further, the panel display unit 8 is realized by the operation panel switching key 8a.

Further, the touch panel 1 used here
May be a contact type touch panel, or may be of a type called a C-mac that includes a touch panel sensor 1a and recognizes a touching position by blocking light. In addition to the touch panel 1, the operation panel also includes a loader 9
It has an RS232C connector 10 for connecting to and a memory card insertion port 11 for inputting various data to the process loop controller.

The CPU 4 detects the set value SV changed by the SV / MV operation amount changing unit 7, the operation amount MV, etc. via the touch panel operation drive 2, and the SV / MV operation amount detecting unit 12 and various detected values. An operation amount set value SV, an operation amount MV calculation unit 13 for calculating an operation amount MV, a control operation unit 14, and an operation SV / MV selection unit 15 are provided.

The control calculator 14 calculates the set value S
V, the manipulated variable MV is output to the process via the process amount input / output unit 5, and the control amount PV from the process is input via the process amount input / output unit 5. Further, the above-mentioned set value SV, operation amount MV, control amount PV, and other alarms are output to the touch panel 1 via the touch panel display driver 3.

The operation SV, MV selection section 15 is connected to the relevant section in the process loop controller 30 via the RS232C cable 16 by the loader 9 as shown in FIG. 3, and a predetermined operation panel pattern is required. Only the number has been entered. A pattern is selected through the touch panel operation driver 2 by operating the operation panel switching key 8a (panel selection unit 8) on the touch panel 1, and the operation S
The V / MV selection unit 15 displays the selected pattern via the touch panel display driver 3.

The operation panel pattern may be input to the operation SV / MV selection section 15 by a memory card (not shown). The display pattern storage means is composed of the operation SV and MV selection unit 15. Further, the operation command detecting means includes, for example, the touch panel operation driver 2 and the SV, MV operation amount detecting unit 12 and the SV and M.
The panel switching means is composed of, for example, the operation SV / MV selection section 15 and the touch panel display driver 3. Further, the data display means includes, for example, the display unit 6, the touch panel display driver 3, and the control calculation unit 14.

Next, the operation of the process loop controller of this embodiment constructed as described above will be explained.
The operator presets a necessary operation panel pattern in the operation SV, MV selection unit 15 in the programmable controller via the loader 9.

When the set value SV and the manipulated variable MV are used only for one loop while the plant process is in progress, the touch panel is displayed as shown in FIG. 4A, for example. In this state, the operator can manually operate only one loop of control at a time. When there is no particular need, the display of one loop is easier for the operator to see,
Easy to operate.

Next, when it becomes necessary to change the configuration of the operation panel to another pattern, for example, the set value SV and the operation amount MV are set.
When it is necessary to change the values for two loops at the same time, the operator presses the operation panel switching key 8a to perform the operation S
The display of the touch panel 1 is switched to the pattern as shown in FIG. 4B that has been input to the V / MV selection unit 15. At this time, since two sets of the SV key 7a, the MV key 7b and the bar graph 6a are set on the touch panel 1,
The operator can manually control two loops at the same time. In FIG. 4, 7C, 7d and 7e are SV and MV.
The operation amount changing unit 7 is a kind of an automatic mode key 7c, a manual mode key 7d, and a cascade mode key 7e.

As shown in FIG. 5, in the system for controlling the pressure and combustion in the furnace 21 at the same time, it becomes possible to simultaneously operate the operation valve 22 for air and the operation valve 23 for fuel.

As described above, in the process loop controller according to this embodiment, the operation panel of the controller is the touch panel 1, the panel selecting section 8 and the operation SV, MV selecting section 15 are provided, and the touch panel display is preset. As it is possible to switch to patterns, it is possible to operate as many process loops simultaneously as necessary according to the situation, and even when manual operation of multiple loops is required, the operator can quickly respond to the process. it can.

Moreover, any pattern of the touch panel 1 can be prepared corresponding to the process and can be switched with one touch, so that extremely flexible operation can be performed.

For example, in order to eliminate an uncomfortable feeling of the operator, normally, the same pattern as that of the operation panel of the conventional apparatus as shown in FIG. 6 may be displayed. further,
Due to the size of the operation panel and the required function settings, various data, graphs, etc., which could not be displayed in the past, may be displayed. For example, if a historical trend or the like is normally displayed and the pattern is changed so that the set value SV, the manipulated variable MV, etc. can be operated when necessary,
The operator can easily grasp the process status.

[0033]

As described above in detail, according to the present invention, it is possible to provide a process loop controller capable of selecting a necessary operation panel according to the situation by preparing a plurality of kinds of operation panel patterns. it can.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an embodiment of a process loop controller according to the present invention.

FIG. 2 is a diagram showing an example of an operation panel provided on the front surface of the controller of the embodiment.

FIG. 3 is a diagram showing a state in which a loader is connected to the controller of the embodiment.

FIG. 4 is a view showing a state in which different operation panels are formed on the controller of the embodiment.

FIG. 5 is an explanatory diagram showing an example of operating a plurality of valves using the controller of the embodiment.

FIG. 6 is a view showing another operation panel formed on the front surface of the controller of the embodiment.

FIG. 7 is a diagram showing an example of an operation panel in a conventional process loop controller.

[Explanation of symbols]

1 ... touch panel, 2 ... touch panel operation drive, 3
... touch panel display drive, 4 ... CPU, 6 ... display section, 7 ... SV, MV operation amount changing section, 8 ... panel selecting section,
12 ... SV, MV operation amount detection unit, 13 ... SV, MV calculation unit, 14 ... Control calculation unit, 15 ... Operation SV, MV selection unit.

Claims (2)

[Claims] 1. Displaying various data regarding a controlled object,
In a process loop controller capable of inputting a plurality of types of operation commands, a touch panel for displaying data and inputting an operation command, a display pattern storage unit for storing a display pattern corresponding to the type of the operation command, and an external device. Panel switching means for displaying a display pattern specified in response to a panel switching command from the touch panel, and corresponding to the display pattern in response to a touch operation executed while the display pattern is displayed on the touch panel. An operation command detecting means for detecting an operation command to be performed. 2. A touch panel for displaying data and inputting an operation command in a process loop controller capable of controlling operations of a plurality of types of controlled objects, displaying various data relating to the control object, and inputting an operation command. A display pattern storage unit that stores a display pattern corresponding to each of the control objects, and the display patterns corresponding to the specified control objects according to a panel selection command that specifies at least two control objects from the outside. Panel switching means for displaying on the touch panel at the same time, data display means for displaying data of each control target corresponding to the display pattern in a state where the display pattern is displayed on the touch panel, at a designated position of each display pattern, In response to a touch operation performed while the display pattern is displayed on the touch panel, Process Loop controller, characterized in that an operation command detecting means for detecting an operation command corresponding to the pitch operation target display pattern.