JPS59223814A - Operator console for process control - Google Patents

Abstract

PURPOSE:To simplify a control operation by dividing a CRT into (n) sections to display the valve, motor, etc. of each group with tags and symbols of a mode display, blinking these symbols and displaying the selection and action states in different colors. CONSTITUTION:The display area of a CRT100 are divided into (n) sections (C1- Cn), and a keyboard KEY is divided into (n) sections (K1-Kn) in response to the sectionsC1-Cn. The tag names and symbols for mode display of valves, motors, etc. of each group are displayed at the display sections of the CRT respectively. Then a key which moves up and down the display is operated to selct the valves and motors within a group, and the symbol marks of the selected valve and motor are blinked. The automatic and manual modes are switched by a C/A key and an M key respectively, and the symbol display colors are changed to display manual mode. In the manual mode the operations of the valve and motor selected by an F/ST key are inverted. Then the display color of the tag name is changed to show an action state.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an operator's console for process control, and in particular to an operator's console for process control suitable for performing manual intervention in sequence control using a CRT and a keyboard. It is related to.

[Background of the invention]

In recent years, process control operations using CRTs have become widespread, and CRT operations have come to be called ``CRT operations'', replacing ``OPERATION'', which had previously been performed using desk panels, control panels, etc. It has become. The method of CRT operation has already been established in DDC, and the technology is expected to become established.

However, when it comes to sequence control, each company is still exploring its methods, and in particular, manual intervention in the event of a problem with sequence control is performed using a switch board provided on the desk panel. is the current situation.

FIG. 1 is a perspective view showing an example of the configuration of a conventional desk board.

There is a timer TM on the desk boards D1 and D2.

A counter CN, analog instruments closely related to sequence control, and a switch L with a lamp for displaying process status and progressing the process are provided. And desk board Di
Sequence control is performed using internal channels of , D2 or a V-board installed separately, and operation monitoring is performed using desk boards DI and D2. In addition, in order to deal with the occurrence of a trouble in sequence control or a process to be controlled, it is common to prepare a switch board 8B as shown in the figure to allow manual intervention.

As shown in Figure 2, each switch SW on the switch board SB has a nameplate N attached to it, which indicates the name of each device such as a valve or motor (for example, VIOI) and the operation classification of open, automatic, and close. The power of the name; it is attached so that each IL device can be operated as open, automatic, or closed.

FIG. 3 is a diagram showing an example of a sequence control circuit. As shown in the figure, in automatic mode, the output of the sequence control circuit SEQ is derived.

Further, when it is opened, an ON signal is forcibly derived, and when it is closed, an OFF signal is forcibly derived.

[Purpose of the invention]

The purpose of the present invention is to
An object of the present invention is to provide an operator's console for process control that allows manual intervention of a motor using a CRT and a keyboard.

[Summary of the invention]

The present invention is characterized by a means for displaying the tag names of groups such as knobs, motors, etc. and symbols for displaying their modes in the n-divided portions of the display area of the CRT, and by means of this means. The valve selected when selecting the valve, motor, etc. that should be switched between automatic and manual from among the displayed valves, motors, etc.
Means for blinking the above symbols such as motors, etc., and automatic switching of selected valves, motors, etc. by means of mode switches;
A mode display means for displaying the mode by changing the display color of the above-mentioned symbol of the corresponding valve, motor, etc. according to the mode after switching when the manual mode is switched, and the selected above-mentioned valve. (The structure is equipped with an operating state display means that displays the operating state by changing the display color of the above-mentioned tag name of the corresponding valve, motor, etc. when the operating state of the motor, etc. is changed by opening and closing the operation switch.) At the point.

[Embodiments of the invention]

Hereinafter, the present invention will be explained in detail with reference to the embodiments shown in FIGS. 4, 5, 7, and 8, and FIG. 6. FIG. 2 is an explanatory diagram showing an example of the display classification and keyboard configuration of a CRT for monitoring driving;

The display area of CRTloo is Cm- as shown in the figure.
It is divided into n divisions in the cm display division, and the keyboard KEY
is the display classification C of C1l, Tl0Q! The keyboard is divided into n categories of 1 to Km corresponding to Cn. The keyboard KEY is composed of UP-DOWN keys for setting set values and output values, and status keys for switching statuses.

Figure 5 shows the display on CRTloo and the keyboard K in Figure 4.
It is an explanatory view showing an example of the relationship with the operation of EY. As shown in FIG. 5, symbol marks and tag names of valves and motors are displayed on CRTloo. However, the symbol mark is displayed in a different color, for example, a line when it is automatic, and yellow when it is manual. The same goes for tag names, which are displayed in different colors depending on the open/closed state. With the above, it becomes possible to display the status of the valve and motor.

Next, UP- which is used when DDC of keyboard KEY
Select pulp and motor using the DOWN key. Then, when performing screen display, the first displayed symbol mark is linked to indicate that the pulp or motor has been selected. In other words, if the key is 91
By lowering the button one step at a time and raising the country key one step at a time, the pulp or motor within the group is selected, and the symbol mark of the selected pulp or motor is linked.

Next, the first key is used to switch to automatic mode, and the key is used to switch to manual mode, and when in manual mode, the operation of the pulp and motor selected by the Takumi key is reversed.

In other words, if it is pulp, open items are closed, and closed items are opened.

In this way, the pulp and motor can be manually operated using the CRTloo and the keyboard KEY.

Next, a specific implementation method will be explained. Conventionally, as shown in FIG. 6, the output of the computer-based sequence control circuit SEQ was set to the output table TBLI, and the process was controlled by outputting it to the package p Ilo. That's how it is.

FIG. 7 is a related diagram showing an embodiment of the present invention for explaining the output flow of the sequence control circuit in the operator's console of the present invention. In the present invention, in addition to the output table I, a mode switching table TBL2 and an output buffer table TBL3 are provided, and each table TBLI to
The signals in TBLa have a one-to-one correspondence between the pulp and the motor.

The signal in the output table TBLI is transferred to the output buffer table TBL3 when the mode switching tape fivTBL2 is in the automatic mode. That is, in the manual mode, the sequence control signal is disconnected and a close command is issued directly from the keyboard KEY.

Further, the mode switching table TBL2 is configured to set automatic mode and manual mode using the keyboard KEY. The display color of the CRTloo symbol is changed by the mode switching table TBL2, and the display color of the tag name is changed by the output cross table TBL3.

FIG. 8 is a flowchart showing one embodiment of the above-mentioned control processing. When performing sequence control, it can be realized by newly adding the control processing shown in FIG. 8.

With the above, the pulp and motor can be easily operated manually using CRTloo and the keyboard KEY.

〔Effect of the invention〕

As described above, according to the present invention, manual intervention of the pulp motor in sequence control can be performed using a CRT and a keyboard, which has the effect of simplifying the operation.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an example of the configuration of a conventional desk panel, Fig. 2 is a plan view of the switch nameplate of the switch boat shown in Fig. 1,
FIG. 3 is a diagram showing an example of the sequence control circuit in FIG. 1, and FIG. 4 is an explanation showing an example of the configuration of the CRT display division and keyboard for monitoring DDC operation of the operator's console for process control of the present invention. 5 is an explanatory diagram showing an example of the relationship between the display on the CRT shown in FIG. 4 and the keyboard operation, FIG. 6 is a related diagram showing the flow of output of the conventional sequence control circuit, and FIG. FIG. 8 is a related diagram showing an embodiment of the sequence control output flow in the process control operator's console of the present invention, and FIG. 8 is a flowchart showing an embodiment of the control processing in FIG. 7. 100...CRT, KEY...Keyboard, C1~
C1l...CRT display classification, K1-Kn...keyboard classification, TnLi-TBL3...table, P■1
0...Package. Figure 1 Figure 2 Figure 3 Figure 4 Figure S

Claims (1)

[Claims] 1. A CRT whose display area is vertically divided into n sections, and the CRT.
In the process control operator's console, which is equipped with operation switches and mode switches arranged to correspond to the divisions, the pulp, motor, etc. of the groups belonging to the n divisions of the display area of the CRT, respectively. a means for displaying the tag name and a symbol for displaying its mode, and selecting a pulp, motor, etc. to be switched between automatic and manual from among the pulps, motors, etc. displayed by the means. means for blinking the symbol of the selected pulp, motor, etc. when the selected pulp, motor, etc. mode display means for displaying the mode by changing the display color of the non-pole of the corresponding pulp, motor, etc., and when the operating state of the selected pulp, motor, etc. is changed by opening and closing the operation switch; 1. An operator's console for process control, comprising an operating state display means for displaying the operating state of pulp, motor, etc. by changing the display color of the tag name corresponding to the pulp, motor, etc.