JPH11202908A - Control drawing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate a control drawing in a short time by registering a control logic composed of plural function blocks as a sub-drawing macro and defining the control drawing by using that registered sub-drawing macro. SOLUTION: The control logic composed of plural function blocks is registered in a macro library 20 as the sub-drawing macro. Namely, a control drawing 30 is registered as the sub-drawing macro and defined by a control drawing 40 by using that registered sub-drawing macro. When the constitution of the sub-drawing macro registered in the macro library 20 is changed, the control drawing using the sub-drawing macro is reflected with the change of constitution by a dynamic link 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control drawing device for describing control logic in an industrial control device and the like, and more particularly to an improvement for facilitating reuse of control logic in another application.

[0002]

2. Description of the Related Art An industrial control device has a sequence control function centered on digital input / output processing.
A control drawing device is used to describe the sequence control function. The control drawing is 2
A small group of controls composed of more than two functional blocks corresponds to, for example, temperature cascade control of a jacket and an inside of a reaction vessel, air-fuel ratio control in a combustion process, and the like. On the other hand, the functional block is a minimum unit for executing control / operation, and continuously describes continuous control, sequence control and operation. As one type of this functional block, IB
There is a D (interlock block diagram) sheet. The IBD has input signals, output signals, functional blocks, wiring, and comments, and is described in, for example, Yokogawa Technical Report, Vol. 33, page 205 (1989).

[0003]

However, according to the conventional control drawing apparatus, each component has to be described individually, so that similar sequence control functions such as tank control and boiler control are performed. In some cases,
There has been a problem that it has to be described individually and it takes time to create. SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and has as its object to provide a control drawing device capable of creating a control drawing according to a sequence control function in a short time.

[0004]

In order to achieve the above object, a control drawing device according to the first aspect of the present invention includes a macro library for registering a control logic composed of a plurality of functional blocks as a sub drawing macro. ,
The control drawing is defined using the sub-drawing macro registered in the macro library. Then, the control drawing can be created using the sub drawing macro registered in the macro library, and the control drawing can be created efficiently.

Here, when the configuration of the sub-drawing macro registered in the macro library is changed, the change in the configuration is reflected in the control drawing using the sub-drawing macro. In this configuration, since the control drawing refers to the sub-drawing macro registered in the macro library, the configuration change of the sub-drawing macro is collectively reflected unlike the case of copying.

According to a third aspect of the present invention, there is provided a control drawing apparatus which registers a function block parameter specifying a function block parameter as a function block macro, and performs control using the function block macro registered in the function block library. It is configured to define the drawing. Then, the control drawing can be created by using the function block macro registered in the function block library, and the control drawing can be efficiently created.

Here, when the parameter of the function block macro registered in the function block library is changed, the parameter is changed in the control drawing using the function block macro. If the configuration is reflected, since the control drawing refers to the function block macro registered in the function block library, the configuration change of the function block macro is collectively reflected unlike the case of copying.

The control drawing apparatus according to a fifth aspect of the present invention is characterized in that an interlock block diagram and / or a sequence table are used for the control drawing. As a result, the control logic created using the interlock block diagram and the sequence table can be registered as a function block macro and reused.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a control drawing showing one embodiment of the present invention. In the figure, in the function block library 10, those specifying the parameters of the function blocks are registered as function block macros. The control drawing 30 is defined using a function block macro registered in the function block library 10. The tag name of the control block is defined by a generic name, and the parameters of the function block define defaults.

Here, the control drawing 30 is of a three-input one-output type, having IN1, IN2, IN3 as input signals and OUT1 as an output signal. The input signal IN2 is input through the dead time LAG through the dead time LAG.
1 is output as a control input. Thereafter, the P / I control calculation is performed. On the other hand, the input signal IN3 is the signal generator SG
Is added to the input signal IN2 after the P / I control operation via the function block macro Fx. Then, it is output as an output signal OUT1 via the function block macro H / A.

In the macro library 20, control logic composed of a plurality of functional blocks is registered as a sub-drawing macro. For example, the control drawing 30 is registered as a sub-drawing macro. The control drawing 40 is defined using a sub drawing macro registered in the macro library 20. In the control drawing, a general name of a sub-drawing macro is defined, and a parameter of each functional block is defined.

When a parameter of a function block macro registered in the function block library 10 is changed, the dynamic link 50 reflects the change of the parameter on the control drawing using the function block macro and also sets the macro library. When the configuration of the sub-drawing macro registered in 20 is changed, the change in the configuration is reflected on the control drawing using the sub-drawing macro.

In the device configured as described above, the control drawings 30 and 40 can be created using the function block library 10 and the macro library 20, so that the control drawing can be easily created. In addition, it is possible to register typical functions that specify the parameters of function blocks as function block macros, or register typical control logic composed of multiple function blocks as subdrawing macros to enable reuse. As a result, it contributes to reducing engineering man-hours and improving quality. Also, by using the dynamic link 50, the library 10,
The modification of the macro in 20 is automatically reflected in the macro used in control drawing 40.

FIG. 2 is a block diagram of an interlock block diagram showing one embodiment of the present invention. The interlock block diagram 60 is registered in the IBD macro library 70. In the control drawing 40, the IDR registered in the IBD macro library 70
It is defined using a BD macro. In the control drawing 40, a universal name of the IBD is defined, and a parameter is also defined.

FIG. 3 is a configuration diagram of a sequence table showing an embodiment of the present invention. The sequence table 80
It is registered in the sequence table / macro library 90. In the control drawing 40, the definition is made using a sequence table macro registered in the sequence table macro library 90. In the control drawing 40, a universal name of the sequence table is defined.

FIG. 4 is a structural block diagram showing another embodiment of the present invention. The control drawing macro 15 includes the above-described macro library 20, the IBD macro library 70,
A macro used directly in the control drawing 40 is registered under a name that supervises the sequence table / macro library 90. On the other hand, the function block library 10 registers a macro used for a macro registered in the control drawing macro 15, and here, the sequence table macro 1 is defined.

The control drawing macro 2 is registered as a macro 2 in the control drawing macro 15. The control drawing macro 3 is a control drawing macro 1
5 is registered as a macro 3 and described using a sequence table macro 1 and a control drawing macro 2. In the control drawing 40, a generic name of the macro 1 is defined with reference to the function block library 10. Further, with reference to the control drawing macro 2, a general-purpose name of the macro 2 is defined, and parameters of the function blocks included in the macro 2 are defined.
Further, with reference to the control drawing macro 3, the general name of the macro 1 is defined, the general names of the macros 2 and 3 are defined, and the parameters of the function blocks included in the macros 2 and 3 are defined.

That is, in addition to the macro library having only one of the control drawing, the IBD, and the sequence table as in the embodiment shown in FIGS. 1 to 3, the macro library is formed by combining these in a complicated manner as shown in FIG. Can also be created.

[0019]

As described above, according to the control drawing apparatus of the present invention, a macro library for registering a control logic composed of a plurality of function blocks as a sub drawing macro, and a sub library registered in the macro library The control drawing is defined using a drawing macro. Then, the control drawing can be created using the sub drawing macro registered in the macro library, and the control drawing can be created efficiently.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of control drawing showing one embodiment of the present invention.

FIG. 2 is a configuration diagram of an interlock block diagram showing an embodiment of the present invention.

FIG. 3 is a configuration diagram of a sequence table showing an embodiment of the present invention.

FIG. 4 is a configuration diagram showing another embodiment of the present invention.

[Explanation of symbols]

 10 Function Block Library 20 Sub-Drawing Macro 30 Control Drawing 40 Control Drawing 50 Dynamic Link

Claims (5)

[Claims] 1. A control system comprising: a macro library for registering a control logic composed of a plurality of functional blocks as a sub-drawing macro; and a control drawing using the sub-drawing macro registered in the macro library. Drawing equipment. 2. The method according to claim 1, wherein when the configuration of the sub-drawing macro registered in the macro library is changed, the change in the configuration is reflected in the control drawing using the sub-drawing macro. Item 1
A control drawing device as described. 3. A control, characterized in that a function block library for registering a parameter of a function block as a function block macro is registered, and control drawing is defined using the function block macro registered in the function block library. Drawing equipment. 4. When a parameter of a function block macro registered in the function block library is changed,
4. The control drawing apparatus according to claim 3, wherein the change in the parameter is reflected in the control drawing using the function block macro. 5. The control drawing device according to claim 1, wherein an interlock block diagram and / or a sequence table is used for the control drawing.