JPH021603Y2 - - Google Patents

Description

[Detailed Description of the Invention] Field of the Invention The present invention relates to a program control device that temporally controls a controlled object according to a predetermined control program, and particularly relates to a program control device that is characterized by the setting of auxiliary outputs. be.

Background of the invention With the spread of microcomputers, various control devices, such as temperature control devices, have a program function in addition to the conventional temperature control function, and temperature control devices that preprogram the temperature of the controlled object have become available. Programmed temperature control devices that can be temporally controlled in a pattern are becoming available. In such a program control device, setting data and a control time for maintaining the set value are paired, and a series of steps is stored in the storage device, with this as one step.

By the way, such program control devices are configured to output auxiliary outputs (hereinafter referred to as stage outputs) at each step in order to speed up temperature changes or to use as input for other control devices. There is. Some stage outputs are on or off while the step is being controlled, and others output a pulse of a predetermined length only at the moment the step is entered. Therefore, in this type of device, when storing control data for each step, it is necessary to store control values such as temperature, control time for maintaining the control values, and presence/absence of stage output and its type.

However, if stage output is required in most steps, stage output data must be set for each step, which poses a problem in that it takes a lot of time and effort to set.

Purpose of the invention The present invention was made in view of the problems of the conventional program control device.It facilitates the setting of the stage output when setting the control data of each step, and provides easy-to-use program control. The purpose is to provide equipment.

Structure and Effects of the Invention The present invention has a detection means for detecting information to be measured in a controlled object and an output means for performing control operations on the controlled object, and temporally controls the controlled object according to a predetermined control program. At the same time,
A basic program area that is a program control device having an auxiliary output at each step, consisting of a series of control steps that stores setting data, control time data at the set value, and the state of the auxiliary output at the time of control of that step. input means for inputting each step data including program-controlled auxiliary output data into the storage means; means for writing the data of the auxiliary output setting switch in the auxiliary output area of all steps of the storage means based on the data obtained from the input means, and changing the auxiliary output data according to the input of the input means; and the detection data obtained from the detection means. The present invention is characterized by comprising a control means that controls the controlled object along a series of steps while driving the output means based on the output means, and provides an auxiliary output in accordance with auxiliary output data of each step.

As described above, according to the present invention, an arbitrary stage output that is used most often can be set in advance using the initial setting switch. Therefore, regardless of the stage output, it is extremely easy to set it, so that the program is simplified and it is easier to use.

DESCRIPTION OF EMBODIMENTS FIG. 1 is an overall configuration diagram of a program temperature control device showing an embodiment of the present invention. In this figure, the temperature control device 1 includes temperature control steps, P, I, and D.
A key input section 2 for setting control parameters such as constants, a display section 3 for displaying the step number, set temperature, and current temperature, a sensor installed on the controlled object 4 to detect the temperature, and the data obtained from it are digitally displayed. It consists of a temperature detection section 5 having an A/D converter that converts it into a value, a control section 6 that controls the controlled object 4 according to a predetermined processing procedure based on the data obtained from the temperature detection section 5, a heater, a motor, etc. An output section 7 connected to the control section 6 to directly control the controlled object 4 and an output section 8 for stage output are provided. The control unit 6 consists of a central processing unit (hereinafter referred to as CPU) and a read-only memory (hereinafter referred to as a storage device).
A random access memory (hereinafter referred to as RAM) 10 is connected. ROM9
is for storing arithmetic processing procedures of the control section 6, and the RAM 10 has an area for storing various control data given from the key input section 2.

FIG. 2 shows a memory map of the RAM 10. The RAM 10 has a step counter that stores control steps, an application program area that stores common control parameters for the following steps, and a basic program area that stores data for each step. As shown in the figure, the application program area is an area for storing upper and lower limit alarm values, proportional bands, proportional periods, integral and differential times, and the like. The basic program area is an area for storing the set temperature and set time of each step from step S01 to step S15, and the presence or absence of stage output and its type.

FIG. 3 shows the front panel surface of the program temperature control device used for the key input section 2 and display section 3. FIG. In this diagram, “STOP/
The "RUN" switch is a switch that switches between the program mode for writing the control program and the operating mode.The "STEP" switch is a switch that is pressed when changing step data.The "END" switch is a switch that is pressed to change step data.
The "↑", "↓", and "→" switches are numerical control switches that raise, lower, and lower the value of parameters, respectively. ”
The switch sets the display data, stores it in the RAM 10, and moves the setting operation to the next step.The "AT" switch sets an appropriate general-purpose value when it is not necessary to set the control parameters strictly. The "STAGE" switch is used to change stage output settings, the "NC/CLEAR" switch is used to clear non-control specifications and parameters, and the "BANK/CLEAR"
LINK" switch is a switch that specifies a bank in program mode and a link in operation mode. Further, in the present invention, a switch is provided to determine the initial value of the stage output for each step. This can be done, for example, by two deep switches (the third
The basic state of the stage output is determined by the states of the dip switches D1 and D2 (shown as DIP in the figure). That is, if both the dip switches D1 and D2 are turned on, one-shot output (pulse output with a predetermined width from a monostable multivibrator or the like) is turned on, and if the dip switch D1 is turned on, all outputs of each stage are turned on. turn on,
When D2 is turned off, all outputs of each stage are turned off. In this way, the initial value of the stage output of each step can be set arbitrarily. The output of each stage can be displayed and changed using the deep switch D.
1 and D2 are turned on and off in correspondence with binary numbers "1" and "0".

Next, the operation of the program temperature control device will be explained with reference to a flowchart. Before turning on the power to this apparatus, the deep switches D1 and D2 are set in advance to the state of the stage output most frequently used for each step, as described above. For example, if the stage output is off in many steps as shown in FIG. 5b, the dip switch D1 is set to on and the dip switch D2 is set to off. Then, when the power is turned on, "10" indicating that the stage output is off is set in the stage output area of each step S01 to S15 of the RAM 10. Now, after setting the stage output of each step in this manner, the changing operation when changing the stage output will be described with reference to the flowchart of FIG. 4. In the flowcharts below, numbers indicated using leader lines indicate operation steps of the control section 6. To change the stage output, first press the "STAGE" switch in step 21. Then, the depth switch D1 of the step currently being controlled,
The status of D2 is displayed in binary (step 2).
2). Next, specify the step number of the step whose stage output is to be changed. To do this, first press the "STEP" switch (step 23),
Next, input the step number using the numerical control switches ``↑'', ``↓'', and ``→'' (step 2).
4). Then press the "WRITE/NEXT" switch (step 25) and enter the step number.
Input to RAM 10 (step 26). Then, in step 27, the contents of the stage output of that step are displayed on the display section 3. Now the 5th
If the stage output is to be turned on at step number 02 as shown in Figure b, step number 02 is input here. and “↑”,
Input the desired stage output state in binary numbers using the numerical control switches "↓" and "→". In this case, operate the numerical control switch so that it is on, that is, "01" (step 28), and then
Press the "NEXT" switch. Then, the contents of the stage output are written to that step (step 31). If the "END" switch is pressed here, the stage output change ends (step 31), and if another switch is pressed, the change is continued and the process returns to step 23. And step 23
Below, specify the step number that needs to be changed again and rewrite its contents (step 24).
~30), end the change. In the example shown in FIG. 5, "01" indicating on is written in the stage output area of step 6, and "11" indicating one shot output is written in the stage output area of step 8.

By rewriting the stage output area of the RAM 10 and controlling the output in this manner, it is possible to obtain the desired stage output as shown in FIG. 5b at the same time as the temperature control shown in FIG. 5a.

In this way, in the present invention, a switch is provided to preset the state of the stage output that is used most often, and the stage output state is changed only for steps that require different control. It is easy to set up as there is no need to set up each time.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of a programmable temperature control device showing an embodiment of the present invention, FIG. 2 is a memory map of the RAM 10, and FIG. 3 is a key input section 2 and a display section 3.
4 is a flowchart showing the stage output changing operation of this temperature control device, FIG. 5a is a diagram showing the temperature control pattern, and FIG. 5b is a diagram showing the corresponding stage output. It is a figure showing a state. 1...Temperature adjustment device, 2...Key input section, 3...
...Display unit, 4...Controlled object, 6...Control unit, 7...
...Output section, 8...Stage output section, 9...
ROM, 10...RAM, S01~SN...Step.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A method having a detection means for detecting information to be measured in a controlled object and an output means for performing a control operation on the controlled object, and controlling the controlled object according to a predetermined control program. In a program control device that performs temporal control and has an auxiliary output at each step, a series of control steps that stores setting data, control time data at the set value, and the state of the auxiliary output at the time of control of that step. storage means having a basic program area consisting of; input means for inputting each step data including program-controlled auxiliary output data to the storage means; , writing the data of the auxiliary output setting switch in the auxiliary output area of all steps of the storage means based on the data obtained from the initial setting switch at the time of initial setting, and changing the auxiliary output data according to the input of the input means. and controlling the controlled object along a series of steps while driving the output means based on detection data obtained from the detection means,
A program control device comprising: control means for providing an auxiliary output according to auxiliary output data of each step. (2) Utility model registration claim No. 1, characterized in that the program control device is a temperature control device.
The program control device described in paragraph (1).