JPH02103601A - Parameter tuning device for digital controller - Google Patents

Abstract

PURPOSE:To easily set parameters by automatically setting the parameter required by a digital controller (DDC) in an interlocking way with sequence control and, at the same time, setting the parameter corresponding to the manufacturing kind of an apparatus to be controlled in an interlocking way with the sequence control. CONSTITUTION:A constitution is provided so that the parameter required by a DDC 1 can be automatically set in an interlocking way with sequence control and, at the same time, the parameter corresponding to the manufacturing kind of an apparatus 5 can be set in an interlocking way with the sequence control. Therefore, DDC control can be performed in an interlocking way with the sequence control and, even when the manufacturing kind of the apparatus 5 for object to be controlled is changed, it is not required to change the parameter every time. Thus setting of parameters can be made easier.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a parameter tuning device for a digital controller that directly controls a controlled object such as a control valve using a digital signal.

[Conventional technology]

There is a digital controller (hereinafter referred to as DDC) that controls temperature, pressure, flow rate, etc. by directly controlling various control objects such as a throttle valve using digital signals.

FIG. 4 is a diagram showing the conventional configuration of a parameter tuning device for setting parameters used in this type of DDC. It is a highway, and the device 5 to be controlled is connected to DDCl.

FIG. 2 is a diagram showing the flow of parameter tuning processing in DDCl, where 11 is a [)[)C control program, and 12 is a DDC control intermediate data table.

Next, the operation will be explained. DDCI in DDCl
The IJIII program 11 uses the parameters set in the DDC control intermediate data table 12 to execute DDC control on the device 5 to be controlled.

Here, the above parameters are input from the data human power/surface water art [3b] directly connected to DDCl, and are input from DDCl1lJ
10 intermediate data tables 12. In addition, if the parameter display/setting device @2 is connected to DDCl via data highway 4,
It is also possible to input necessary parameters using the data input/display H@3a connected to the IW2, and set the input parameters in the DDCIIilJg intermediate data table 12 via the data highway 4.

The contents of the set parameters can be confirmed by displaying the contents of the DDC control intermediate data table 12 on the data input/display device 3 connected to the DDCI.

In addition, when the parameter/setting device 2 is connected, the contents of the DDC control intermediate data table 12 are displayed on the data input/display device f3a connected to the same device 2 via the data way 4. 6 [Problems to be Solved by the Invention] The conventional parameter tuning device is configured as described above, but when it becomes necessary to change the parameters used in DDCl, new parameters can be added each time. must be entered manually from the data/display device 3a or 3b, which makes it extremely troublesome to change the parameters when there is a change in the manufacturing type of the control target device 5. There is a problem in that parameters cannot be set in conjunction with sequence control of a sequence control Il device that performs sequence control.

This invention was made to solve the above-mentioned problems, and it is possible to certify DDC parameters in conjunction with sequence control, and to easily set parameters corresponding to the manufactured type of equipment to be controlled. The purpose of the present invention is to provide a parameter tuning device for a digital controller that can perform the following functions.

[Means to solve the problem]

A parameter tuning device for a digital controller according to the present invention provides identification information of necessary parameters according to each stage of sequence control in which a device to be controlled (5) is controlled according to a predetermined sequence, and a track indicating the current stage of the sequence. A sequence control O device (6a) that transmits status information and type information indicating the manufactured type of the device.
, 6b) and a parameter setting information table (D
a DC parameter setting information table 16), a product-specific parameter setting information table (17) provided in the digital controller (DDCl) and storing parameters corresponding to the product information; and control means (DDC) for controlling the device (5) according to the set parameters.
ffilJllI program 11) and the information provided in the digital controller (DDCl) and transmitted from the sequence control device (6a, 6b), and from the parameter setting information table (DDC parameter setting information table 16). Read parameters corresponding to the identification information and sidewalk condition information, further read parameters corresponding to the product type information from the product type parameter setting information table (17), and set parameters in the control means (DDC control program 11). The information analysis means (DDC parameter setting information analysis program 15) is configured.

[Effect]

When the sequence control device (6a, 6b) controls the device (5) to be controlled according to a predetermined sequence, the sequence control device (6a, 6b) generates identification information of necessary parameters according to each step of sequence control and a step number indicating the current step of the sequence. Status information and type information indicating the manufactured type of the device (5) are transmitted. The parameter setting information analysis means (DDC parameter setting information analysis program 15) analyzes the information sent from the sequence control device <6a, 6b), and extracts the identification information from the parameter setting information table (DDC parameter setting information table 16). and the parameters corresponding to the progress status information, and further read the parameters corresponding to the product type information from the product type parameter setting information table (17) and set them in the control means (DDC control program 11). Control means (DDCll+lJ) provided in the digital controller DDC1>
The I'D program 11) controls the device to be controlled (5) using the set parameters.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to illustrative embodiments.

FIG. 1 is a block diagram showing an embodiment of the present invention. 1st
In the figure, 1 is a DDC that directly controls the device 5 to be controlled by digital signals, 2 is a parameter display/setting device, 3a is a data input/display device connected to the DDCl and the parameter display/setting device 2, and 4 is a DDCl and parameter display/setting device 2 and sequence control device f
f16a.

Data ways 6a and 6b connecting 6b5 are sequence control devices that execute sequence control singly or in cooperation with each other.

FIG. 2 shows DD in sequence control devices 6a and 6b.
It is a functional block diagram functionally showing parts involved in parameter setting of CI, 51 is a sequence control program, 51a is a sequence control step determination process executed within the sequence control program 51, and 52 is a sequence control program. 51 is a sequence control control table for referring to data necessary for executing sequence control and storing calculation results; 52a is step condition information regarding sidewalk conditions in the sequence control control table 52; and 53 is a step control table for storing calculation results. DDC parameter setting information for accepting this parameter as information ENQ and storing it in - hours when it becomes necessary to send a parameter to DDCI when the advance judgment processing 51a performs sequence control using the advance condition information 52a. send queue table,
54 is a DDC parameter setting information transmission queue table 5
The DDC parameter setting information stored in 3 is transferred to the information DEQ.
This is a DDC parameter setting information transmission program that extracts the information as a DDC parameter setting information and sends it to DDCl.

FIG. 3 is a functional block diagram functionally showing the parts involved in parameter setting in DDCl, and 11 is a functional block diagram showing the parts involved in parameter setting in DDCl.
A DDC control program that executes DDC control based on DDC parameters set in a DC intermediate data table 12, 12 is a DDC control intermediate table that stores DDC control intermediate data and DDC control parameters, and 13 is a sequence control device 6a or 6b. A DDC parameter setting information receiving program 14 receives the DDC parameter setting information received by the DDC parameter setting information receiving program 13 as information ENQ, and stores it at - time.
DC parameter setting information reception queue table, 15 is D
D from DC parameter setting information reception queue table 14
Retrieves the DC parameter setting information, refers to the parameter setting information table 16 and the product type parameter data table 17 based on the information, reads out parameters necessary for the current walkway stage of sequence control and parameters corresponding to the product type of the equipment 5; 16 is a DDC parameter setting information table that defines parameter items and parameters corresponding to the DDC parameter setting information; 17 is a DDC parameter setting information analysis program set in the DDC control intermediate data table 12;
This is a product-specific parameter data table that defines parameters.

Next, the operation of the above configuration will be explained.

First, sequence III1wJ equipment H6a, 6b (7)
The sequence control program 51 performs batch control of the equipment 5 while referring to the sequence control control table 52, either singly or in cooperation, and causes the equipment 5 to transition from one state to the next state. At this time, if there is a designation to set or change the DDC control parameters in the step condition information 52b, the designation information is set in the DDC parameter setting information transmission queue table 53, and the DDC parameter setting information transmission program 54 is started. Command FORK
Start by. The DDC parameter setting information includes the number of the sequence control device issuing the setting request and the sequence HJm.
It consists of the number of the target DDC 7, step state information indicating the current step step, information on the product type of the controlled device 5, and identification information of the DDC parameters. The DDC parameter setting information transmission program 54 extracts such setting information from the DDC parameter setting information transmission queue table 53 and transmits it to the DDCl via the data way 4.

The parameter setting information receiving program 13 of DDCl is the sequence l! ilJ# outfit! 128a or 6b, and sends the information to the DDC parameter setting information reception queue table 14.
At the same time, the DDC parameter setting information analysis program 15 is started by the start command FORK.

DDC parameter setting information analysis 10 Gram 15 extracts and analyzes the DDC parameter setting information stored in the table 14, and if the number of the DDC to be controlled in the same information matches the number of DDCl, the current Step status information indicating the sidewalk stage of , information on the manufacturing type of the controlled device 5,
The identification information of the DDC parameters is input into the DDC parameter setting information table 16 and the product type parameter data table 17, and the parameter items to be newly set and the parameters corresponding to the manufacturing type of the device 5 are extracted from these tables 16.17. , is set in the DDC control team data table 12. DDC1lilJI! lFloram 11ha DDCffilJwJ Intermediate Cheetah Taple 1
DDC1liI based on the parameter set to 2
Execute I control.

In this way, according to this embodiment, parameters required by DDCI are automatically set in conjunction with sequence control, and parameters corresponding to the manufacturing type of device 5 are set in conjunction with sequence control. Because of this configuration, DDCIIIJI can be executed in conjunction with sequence control, and even when the manufacturing type of the device 5 is changed, there is no need to change the parameters each time, making parameter setting extremely easy.

Note that in the above embodiment, the sequence control device 6a.

6b and DDCI are connected by data way 4,
This may be a communication line, and although there are two sequence control devices 68.6b, they can be increased or reduced depending on the complexity of sequence control. Furthermore, although the parameter setting information includes the number of the sequence control device and the number of DOCl, this is not necessary if the sequence control device and the DDC are connected one-to-one.

〔Effect of the invention〕

As described above, according to the present invention, parameters required by the DDC are automatically set in conjunction with sequence control, and parameters corresponding to the manufacturing type of the device to be controlled are set in conjunction with sequence control. Because of this configuration, DDC control can be executed in conjunction with sequence control, and even when the manufacturing type of the controlled device changes, there is no need to change parameters each time, making parameter setting extremely easy. You can get the effect of becoming.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a functional block diagram functionally showing the parts involved in setting parameters in a sequence control device, and FIG. 3 is a block diagram showing parameters in a digital controller. A functional block diagram functionally showing the parts involved in the settings of Wi4
The figure is a block diagram showing the conventional configuration of a digital controller, and FIG. 5 is an explanatory diagram for explaining the flow of parameter tuning processing in the conventional digital controller. 1...DDC, 2...Parameter display/setting device,
3a, 3b...Data human power/display device, 4...Data highway, 5...Equipment, 6a, 6b...Sequence control device, 11...DDC control program, 12
...DDCIIIJt[l Intermediate data table, 15
...DDC parameter setting information analysis program, 16
...DDC parameter setting information table, 17...
Product type parameter data table, 51...Sequence control program, 51a...Step determination process, 54
...-DDC parameter setting information transmission program. Agent Masuo Ookimi (2 idiots) Figure 2-Ta Highway DC1 Procedural Amendment (Voluntary)

Claims (1)

[Scope of Claims] A device for setting parameters used by a digital controller that controls a device to be controlled using digital signals, the device comprising: a sequence control device that transmits identification information of necessary parameters, progress state information indicating the current stage of the sequence, and type information indicating the manufacturing type of the device; A parameter setting information table that stores parameters corresponding to the step state information; a product-specific parameter setting information table that is provided in the digital controller and stores parameters that correspond to the product information; , a control means for controlling the device according to set parameters; and a control means provided in the digital controller, which analyzes information transmitted from the sequence control device, and extracts the identification information and step state from the parameter setting information table. A parameter tuning device for a digital controller, comprising: parameter setting information analysis means for reading parameters corresponding to the information, further reading parameters corresponding to the product information from the product-specific parameter setting information table, and setting the parameters in the control means.