JPH0592801U - Controller setting device - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a data setter for a control device of industrial equipment. A setter for inputting data required for digital control, a variable resistor, an A / D converter for converting the output of the variable resistor into a digital value, and a current set value It includes a display for displaying numerical values and means for reading the rotation speed and rotation direction of the variable resistor, performing a predetermined calculation, storing the calculation result, and outputting to the display. An encoder having an infinite rotation angle is used instead of the variable resistor. As a result, a large value change or a small value change can rapidly and accurately increase or decrease the data of the display according to the dial rotation speed of the variable resistor or the like and the dial rotation direction. It also realizes reliability improvement and cost reduction by reducing the number of parts.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a data setter for a control device in industrial equipment.

[0002]

[Prior Art]

 Conventionally, a control device for digitally controlling industrial equipment using a microcomputer or the like is equipped with a setter for inputting data required for digital control. This type of conventional setting device generally uses a number key from 0 to 9, so-called numeric keypad, and two types of so-called up / down keys that increase / decrease the set value with two kinds of up / down keys. It has been widely used.

However, in the case of the ten-key system, only the numeric keys require 10 switches, which occupies a large area of the setting panel, which makes it difficult to downsize the device, and has a large number of parts, which results in cost reduction. There was a problem in terms of reliability.

In the case of the up / down key system, the number of switches is at least two, one for up and one for down. However, when the range of the value of the setting data is wide, that is, when there are multiple digits, the amount of data movement is large. In other words, there is a drawback that the operation time is long when changing from a very small value to a large value, or conversely from a large value to a small value, and the speed is not sufficient.

On the other hand, a method of providing an up / down key for each digit of the set value to improve operability and a method of providing two types of keys, high speed and low speed, are conceivable. As a result, the number of switches is increased, and the same problem as in the case of the ten-key system occurs.

[0006]

[Problems to be solved by the device]

 The present invention has been made to solve the above problems. The specific technical means are a variable resistor, an A / D converter for converting the output of the variable resistor into a digital value, a display for displaying the current set value by a numerical value, and the variable resistor. Rotation speed and rotation direction are read to perform a predetermined calculation, and the calculation result is stored and output to the display unit for better operability and cost reduction, and improved reliability by reducing the number of parts. It is a juxtaposition of.

Another technical means is to replace the variable resistor with an encoder having an endless rotation angle, an input device for reading the output, and a display for displaying the current set value by a numerical value. Is provided, the rotation speed and rotation direction of the encoder are read, a predetermined calculation is performed, and the calculation result is input to the storage device and output to the display tube.

[0008]

【Example】

 FIG. 1 is a schematic view of a setting panel showing an embodiment of the device of the present invention. In the figure, reference numeral 1 is a control device setting panel. Reference numeral 2 is a dial type variable resistor, and in this case, it has a finite rotation angle of one rotation or less. Reference numeral 3 is an indicator. Reference numeral 4 is a switch of the storage device. Reference numeral 5 is an item selection switch for selecting a required control element from a plurality of items in advance. 6 is an item display lamp corresponding to the selected item.

FIG. 2 is a configuration example of an electric block circuit diagram using a variable resistor. In the figure, 1 to 6 are the same as in FIG. Reference numeral 7 is an A / D converter for converting the output of the variable resistor 2 into a digital signal. A microcomputer 8 stores the item number designated by the item selection switch 5 via the input port 9 and outputs it to the item display lamp 6 via the output port 10 to display the data. The rotation speed and the rotation direction are read, a predetermined calculation is performed, and the result is displayed on the display device 3 via the display drive circuit 11.

Now, when inputting data to the setting device, when the variable resistor 3 is operated by a dial, the rotation speed and the rotation direction are read by the micro computer 8 via the A / D converter, and the data shown in FIG. When moving from A to B at high speed as shown in (a), the value displayed on the display changes at high speed like the display data in the figure. Further, as shown in FIG. 4B, when moving from the same A to B at low speed rotation, the numerical value displayed on the display changes to low speed. That is, the microcomputer detects a change in the rotation speed when the dial is turned quickly and when it is turned slowly, and when the dial is turned to the right quickly, the data value is increased at a high speed and the dial is turned up. If it is turned to the left quickly, it operates to decrease the data value at high speed.

In this case, the change speed of the display device 3 is not proportional to the rotation speed of the variable resistor 2 but is proportional to the square, for example, and is sharper so that a large value change can be made. By rotating the resistor 2 at high speed, the data is instantly brought close to the target value, and when it is close to the target value, it can be turned slowly to make fine adjustment setting digit by digit.

When the variable resistor 2 requires a large change in value, it may not be possible to reach it with the single-rotation type. In order to deal with this, the present invention is configured to ignore high-speed reverse rotation immediately after a certain high-speed rotation. For example, after rotating the dial to the right to the rotation limit and increasing the value, rotating the dial in the opposite direction (left) does not lower the increased data, but keep it held and rotate the dial to the right again. To further increase the data. In other words, even if the rotation angle range of the variable resistor 2 is within one rotation, high-speed forward / reverse rotation is repeated within the rotation movement range while the dial is held, and during that time, the high-speed change in the rotation direction that was initially turned is performed. It can be maintained in one direction and large value changes can be made. When it is confirmed that the displayed value has reached the target value, the memory switch 4 is pressed to store the data in the microcomputer 8.

Next, the embodiment of FIG. 3 is a configuration example of an electric block circuit diagram when an infinite rotation encoder 12 is used in place of the variable resistor. In this case, the operation is the same as when a variable resistor is used, except that the function of ignoring reverse rotation immediately after high speed rotation above a certain level is omitted.

[0014]

[Effect of the device]

 As described above, according to the setting device of the present invention, the rotation speed and the rotation direction of the variable resistor are read by the microcomputer, and the contents of the display device 3 are increased or decreased according to the rotation speed and the turned direction. Therefore, a large value change or a minute value change can be set easily and quickly and accurately by the dial rotating operation of the variable resistor. This will improve operability and reduce the number of parts to improve reliability and reduce costs. In addition, the setting device of the present invention can be applied to control devices for other purposes in order to enhance the operability of input setting.

[Brief description of drawings]

FIG. 1 is a schematic view of a panel surface of a setting device showing an embodiment of the device of the present invention.

FIG. 2 is a configuration example of an electric block circuit diagram using a variable resistor.

FIG. 3 is a configuration example of an electric block circuit diagram when an infinite rotation encoder is used.

FIG. 4A is an explanatory view showing a high speed change of data display when the variable resistor is rotated at a high speed, and FIG. 4B is a data diagram when the variable resistor is rotated at a low speed. Explanatory drawing which shows the low speed change of a display.

[Explanation of symbols]

1 Setting device panel surface 5 Item selection switch 2 Variable resistor 7 A / D converter 3 Display device 8 Microcomputer 4 Memory switch 12 Encoder

Claims (2)

[Scope of utility model registration request] 1. A data setter for a control device for industrial equipment, a variable resistor, an A / D converter for converting an output of the variable resistor into a digital value, and a display for displaying a current set value by a numerical value. And a setting device of a control device including a device for reading a rotation speed and a rotation direction of the variable resistor, performing a predetermined calculation, storing the calculation result, and outputting the calculation result to the display. 2. The setting device of the control device according to claim 1, wherein the variable resistor is an encoder having an endless rotation angle.