JPS62157905A - Controller - Google Patents

Abstract

PURPOSE:To facilitate the variation of parameters extremely and to prevent the variation from being omitted by providing a memory which stores a table containing the correlation among the parameters and a means which updates the parameters. CONSTITUTION:Parameters which are mutually relative are used in every arithmetic operation. The table shown in a figure is stored in a ROM 2 or RAM 3 so as to update parameters relative to some varied parameter by a processor CPU 1 while the latter parameter is varied, on a keyboard KB 12, thereby indicating the correlation among the respective parameters. For example, when a parameter D as varied, the CPU 1 regards the varied value of the parameter D as D and uses functions fa-fc, fe, and ff determined for other parameters A-C, E, and F to make calculations D.fa-D.fc, D.fe and D.ff thereby finding parameters A-C, E, and F after variation. Then, the respective parameters are updated automatically to said values. Thus, the variation of mutually relative parameters is facilitated greatly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control device that performs predetermined control through various calculations each using parameters.

[Conventional technology]

Various control devices used for air conditioning equipment, production equipment, etc. perform predetermined control using various calculations, but each calculation uses each parameter, and the system When adapting the calculation situation to the situation of the device to be controlled, changes in control conditions, etc., it is common practice to change the values of parameters.

[Problem that the invention seeks to solve]

However, some of the parameters used in each calculation are interrelated, and in the past, each parameter had to be changed and set individually, which made this operation cumbersome. In addition, it is easy to omit changed settings or inconsistency between parameters, resulting in problems such as the control situation becoming temporarily inappropriate.

[Means for solving problems]

In order to solve the above-mentioned problem, the present invention is constructed by the following means.

That is, in the above-mentioned apparatus, there is provided a memory that stores a table showing the correlation between each parameter used in each calculation, and a means for updating the related parameter according to the contents of the table when any of the parameters is changed. It is equipped with the following.

[Effect]

Therefore, if any of the parameters that are related to each other can be changed, the related parameters can also be changed at the same time according to the contents of the table, making the operation of changing each of the related parameters extremely simple.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to figures showing examples.

FIG. 1 is a block diagram showing the configuration 5, which includes a CPU 1, a fixed memory (hereinafter referred to as ROM) 2, a variable memory (hereinafter referred to as I'tAM) 3, and an interface (hereinafter referred to as I'tAM).
/F) 4 to 1 and a clock circuit (hereinafter referred to as CLK) 8 having a calendar function are arranged around the bus bar 9.
I/F4 is equipped with a communication function and is used to send and receive data signals to and from a main control device such as a host computer via transmission line 1o, while I/F5 has a cathode ray tube display. (hereinafter referred to as CRT) 11 and a keyboard (hereinafter referred to as KB) 12 are connected, input data Dil-Din from sensors provided at each monitoring part is given to I/F 6, and control is provided from I/F 7. Output data DOI to Don are sent to each control part of the target device,
As a result, control is performed using the output data Dot-Don according to the input data pDil to Din.

Here, the CPU 1 executes the program in the ROM 2 and performs control operations while accessing necessary data to the RA and M3. , and I/F
In response to input data DixxD1n via 13, control calculations are performed by various calculations, and control decisions are made based on the time of CLK8, day of the week, etc., and output data DOI to Don are sent out according to the results. .

In addition, these control statuses are communicated via the I/F5 to the CRTl
At the same time, the CPU 1 responds to the input operation by the KB 12, and the data in the RAM 5, parameters, etc. can be updated and set freely.
It is displayed by RTll.

However, when performing various calculations by the CPU 1, mutually related parameters are also used for each calculation, and if any of these parameters is in KB12.
When a parameter is changed by an operation, the following table is stored in ROM 2 or RAM 3 for the purpose of CPU 1 simultaneously updating other parameters related to this, and shows the correlation between each parameter. There is.

That is, for example, when the parameter D is changed, the CPU 1 sets the changed value of the parameter D to D, and uses the functions fa-fc, which are determined for each of the other parameters A-C, B%F,
Using fe, ff, D@fa ~ D@fc.

The changed parameters A-C, E, and F are obtained by calculating Do fe and D@ff, and each is automatically updated with these values.

FIG. 2 is a flowchart of the change processing status by the CPU 1. In response to the operation of the KB 12, the
)? Judging J 1o1, if this is YES,
"Is the relevant parameter in the table?" 102 is checked, and if this is NO, it is determined to "change only the relevant parameter" 111, but if step 102 is YES, "calculation by table" 112 is performed, and these According to the result, "Relevant parameter/update" 121 of RAM 3
Let's go.

Therefore, if you change any one of the mutually related parameters, the other related parameters will be automatically updated according to the changed value as shown in the table, making it easy to change the parameters. This will ensure that there will be no omission of changes or inconsistencies between parameters.

However, the conversion calculation relationship of the table may be a correlation with any one amount of change, a correlation with the ratio between the amount of change and an absolute value, or the table may be stored in ROM3 or EPROM, etc., and the contents may be changeable. .

Further, the configuration shown in FIG. 1 can be modified in various ways, such as by selecting the configuration according to the conditions.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, it is extremely easy to change related parameters υ, and there is no possibility of omission of changes or inconsistency between parameters, and it is possible to perform various types of calculations using parameters. Significant effects can be obtained in the control device.

[Brief explanation of drawings]

The figures show embodiments of the present invention, with Figure 1 being a block diagram and Figure 2 being a block diagram.
The figure is a flowchart of the change process. 1... CPU (processor), 2... ROM (
fixed memory), 3...RAM (variable memory), 4~
7. Yu... I/F (interface), 11...
CRT (Cathode Ray Tube Display), 12/Kenchu/KB (Keyboard).

Claims (1)

[Claims] In a control device that performs control by various calculations each using parameters, there is a memory that stores a table showing the correlation between the parameters used in each calculation, and a memory that stores a table showing the correlation between the parameters used in each calculation, and a memory that stores a table showing the correlation between the parameters used in each calculation, and 1. A control device comprising: means for updating related parameters according to content.