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Programmable Controllers

A programming controller and sequential program technology, applied in the direction of program control, computer control, general control system, etc., can solve the problems of increased manufacturing cost and operating cost, and achieve the effect of improving positioning and visibility

Active Publication Date: 2016-12-28
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, in existing devices, it is necessary to adopt a unit that can solve the two problems of positioning and visibility, which may lead to an increase in manufacturing costs and operating costs.

Method used

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  • Programmable Controllers
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0029] figure 1 It is an overall perspective view showing the programmable controller according to Embodiment 1 of the present invention, figure 2 is along figure 1 A cross-sectional view of line A-A in .

[0030] figure 1 and figure 2 Among them, a printed circuit board 3 of a programmable logic controller (programmable logic controller: programmable logic controller) 1 is mounted inside a resin case 2, and the printed circuit board 3 is equipped with an input unit, a storage unit, an output unit, and the like. various electronic components. In addition, a terminal terminal 5 is provided on the outer peripheral surface of the housing 2, and a plurality of input terminals and output terminals 6 connected to the input part and the output part are installed on the terminal terminal 5, so that it can be connected to a plurality of external devices, for complex sequence control.

[0031] On the other hand, in order to grasp the input state and input state of the above-ment...

Embodiment approach 2

[0056] Next, use Figure 7 , Embodiment 2 of the present invention will be described.

[0057] Figure 7 It is a plan view showing the light-transmitting protective plate 9 , and other configurations are the same as those in Embodiment 1, so description thereof will be omitted.

[0058] In the figure, the light-shielding surface 31 is formed on the upper surface of the light-transmitting protective plate 9 using ink as a light-shielding film to prevent light from the LED elements 7 from being emitted from the protective plate 9 . The light-shielding surface 31 is a light-shielding surface printed on the upper surface of the protective plate 9 made of resin by screen printing (silk screening, screen printing), and is formed on the protective plate 9 corresponding to the opening 10 of the housing 2 . The light-transmitting surface 32a trimmed by the light-shielding surface 31 is formed on the surface. Here, right above the opening 10 corresponding to the LED element 7, as if ...

Embodiment approach 3

[0068] Next, use Figure 8 , Embodiment 3 of the present invention will be described.

[0069] Figure 8 It is a plan view showing the light-transmitting protective plate 9 , and is a figure in which the light-shielding surface and the light-transmitting surface in Embodiment 2 are reversed. In addition, other configurations are the same as those in Embodiment 1, and thus description thereof will be omitted.

[0070] Figure 8 Among them, the first light-shielding surface 40 is formed on the upper surface of the light-transmitting protective plate 9 by using the ink used as a light-shielding film to prevent the light from the LED element 7 from passing outside the upper surface of the protective plate 9 corresponding to the opening 10. part of the shot. The first light-shielding surface 40 is formed at least around the area corresponding to the opening 10 on the upper surface of the protective plate 9, for example, the first light-shielding surface 40 may not be formed in ...

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Abstract

The purpose of the present invention is to obtain a programmable controller, which can make the installation of the light guide member forming the light guide path easier, and can realize the positioning of the protective plate relative to the housing and the improvement of visibility at the same time by using one component element. improve. The programmable controller (1) according to the present invention accommodates a plurality of LED elements (7) in the case (2), and makes the light from the LED elements (7) pass through the opening on the upper surface of the case (2) (10) emitted to the outside, including: a light guide member (21), the light guide member (21) is arranged between the opening (10) and the LED element (7), and a hollow part (22) is formed, the hollow The part (22) conducts the light from each LED element (7) to the corresponding opening (10) of each LED element (7); and the protection plate (9), the protection plate (9) has a ) to fit the convex part (23) to cover the opening part (10) from above.

Description

technical field [0001] The present invention relates to a programmable controller for controlling external equipment based on a preset sequence program. Background technique [0002] Generally, a programmable controller has an input unit for inputting a signal from an external device through an input terminal, and a storage unit for performing calculations based on the input signal and a preset sequence program and storing calculation data. and an output unit, the output unit is based on the output signal from the storage unit and is provided to the external device through the output terminal to make the external device operate, and a plurality of input terminals and output terminals are concentrated on the terminal terminal and arranged on the outer peripheral surface of the housing superior. [0003] In addition, in order to grasp the operating states of a plurality of input and output terminals, a display device for displaying the operating states of the input and output...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042
Inventor 坂越章宏
Owner MITSUBISHI ELECTRIC CORP
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