JP2552387Y2 - Control device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device such as a counter and a timer.
The present invention relates to a control device provided with two display units for simultaneously displaying a set value and a current value on a surface of an apparatus main body.

[0002]

2. Description of the Related Art In a control device of this type, a set value which is a target value to be controlled on a surface of a main body and a current value which is an operation result of the controlled device are simultaneously displayed. The display unit is provided, and as the numerical characters displayed on the display units, the larger the character size is, the better it is, from the viewpoint that the function of visual confirmation can be sufficiently performed.

In general, the size of the surface of the main body of the apparatus is standardized according to the DIN standard, and the size of the surface of a small control device such as a counter is generally 48 mm square or 72 mm square. However, there is a limit to the enlargement of the character size of the numerical display for improving the visibility.

Conventionally, in order to distinguish whether the two numerical values displayed are set values (hereinafter, referred to as SV) or current values (hereinafter, referred to as PV), two types of numerical values are used. The display colors of the numerical values are different from each other, or a prefix such as SV or PV is separately provided in front of the numerical value to distinguish the type of the displayed numerical value. Further, in most cases, the character size of the numerical value is changed to two, large and small, and in each case, the character size for displaying PV is larger than the character size for displaying SV.

[0005]

However, for example, in a timer or the like, it is often more important to watch the SV than the PV. In such a case, as described above,
Due to the limitation on the enlargement of the character size and the fact that the SV is displayed in a smaller character size,
This makes it very difficult to visually check from a place away from the device, and there is a problem that various troubles are likely to occur due to erroneous recognition. In particular, 48m of the DIN standard
In the m-angle control device, the visibility of the SV was poor.

The present invention has been made in view of the above-mentioned circumstances. According to an application, a numerical value which is more important to a user among PV and SV is arbitrarily displayed in a large character size, and visibility is improved. It is an object of the present invention to provide a control device capable of improving.

[0007]

In order to achieve the above object, the control device according to the present invention has two large and small character size display units for displaying SV and PV at the same time on the surface of the main unit. In the control device, a voltage level switching means for switching a voltage level between low and high, a CPU having an input terminal for reading a voltage level switched by the voltage level switching means or data changing according to the voltage level, Means for switching the transmission of the SV and PV of the CPU to the above-mentioned large and small display units when a change in level or data is input.

[0008]

According to the control device having the above configuration, the voltage level is arbitrarily switched between low and high via the voltage level switching means, so that the CPU reads the voltage level or data which changes with the voltage level. By the operation, the transmission of the SV and the PV to the large and small display units is switched, and the side desired by the user can be displayed on the large display unit.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall perspective view of a timer as an example of a control device according to the present invention. In FIG. 1, reference numeral 1 denotes a device main body, and two large and small display portions having different character sizes are provided on a surface plate portion 1A. Switch groups 12, 13, and 14 for various settings such as 10, 11 and numerical value up / down are provided, and a slide switch 15 as voltage level switching means is mounted on the side plate 1B.

FIG. 2 shows the two large and small display units 10 and 11.
FIG. 5 is a diagram for explaining the operation states of the slide switch 15 and the slide switch 15 in association with each other. In FIG. 2,
For the sake of simplicity and ease of explanation, it is assumed that the set value (SV) of the timer is 5.678 sec, and the time counted (PV) from the start of the timer to the present is 1.234 sec. In FIG. 3A, the slide switch 15 is turned off.
In the state of F, the display unit 10 on the large side
34 sec is displayed on the smaller display unit 11 as SV of 5.67.
8 sec are displayed.

In FIG. 1B, the slide switch 15 has been turned ON. In this state, the display is completely opposite to that of FIG. That is, 5.678 sec of SV is displayed on the display unit 10 on the larger side, and 1.234 sec of PV is displayed on the display unit 11 on the smaller side. In FIG. 2, characters 21 to 24 of PV and SV displayed in front of the display units 10 and 11 are printed on a semi-transparent surface sheet, respectively, and a lamp ( In FIG. 3, 21a, 22a, 23a,
Characters emerge from the lighting of 24a).

FIG. 3 is a block diagram showing the structure of the main part of the timer. In FIG. 3, reference numeral 31 denotes the voltage level switching circuit for the slide switch 15, and reference numeral 30 denotes a CPU. The voltage level of the port X is one of the ON / OFF states of the slide switch 15.
Accordingly, the state changes to low (L) and high (H). According to the change in the voltage level, the PV data and the SV data of the CPU 30 are selectively transmitted to the large and small display units 10 and 11. A key input unit 32 includes the switch groups 12, 13, and 14.

Next, the display operation of PV and SV in the timer having the above configuration will be described with reference to the flowchart of FIG. First, the slide switch 15 is operated (step S1). At this time, the port X of the CPU 30
It is determined whether or not the voltage level of L is H (step S2).
In the case of (2), as shown in FIG. 2B, the PV is sent to the display unit 11 on the smaller side and the SV is sent to the display unit 10 on the larger side to display each numerical value (step S3).
The lamps 23a and 24a are turned on and turned on (Step S)
4).

If the determination in step S2 is H, as shown in FIG. 2A, the PV is sent to the display 10 on the larger side and the SV is sent to the display 11 on the smaller side. The numerical values are displayed (step S5), and the lamps 21a and 22a are turned on and turned on (step S6).

In the above embodiment, each display unit 1
If the display colors of the numerical values displayed at 0 and 11 are set differently for PV and SV, the discriminability thereof is enhanced, and the visual confirmation function can be further improved.

[0016]

As described above, according to the present invention, SV and P can be changed by a simple operation of switching the voltage level.
Since it is possible to arbitrarily switch the transmission of V to the two large and small display units, the numerical value determined to be important by the user is displayed in large characters in accordance with the application, and the important numerical value is visually checked. Can be significantly improved. In addition, since the above functions can be exerted by software processing using a CPU, the visibility of PV and SV can be improved without incurring an increase in component material costs.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a timer according to an embodiment of the present invention.

FIG. 2 is an enlarged front view of a display unit.

FIG. 3 is a block diagram showing a configuration of a main part.

FIG. 4 is a flowchart illustrating an operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device main body 10 Large display part 11 Small display part 15 Slide switch 30 CPU 31 Voltage level switching circuit

Claims (1)

(57) [Scope of request for utility model registration] And a voltage level switching means for switching a voltage level between a low level and a high level in a control device provided with two large and small display units for displaying a set value and a current value at the same time on a surface of the main unit. A CPU having an input terminal for reading a voltage level switched by the voltage level switching means or data that changes according to the voltage level; and a setting value included in the CPU when the voltage level or data change is input to the CPU. Means for switching the sending of the current value to the two large and small display units.