KR200389319Y1 - PLC Training & Monitoring Equpiment - Google Patents

Abstract

The present invention relates to an educational experimental device using a programmable logic controller (PLC) or a monitoring device using a PLC. More specifically, a system configuration such as an educational experimental device using a PLC or a monitoring device using a PLC is combined according to a user's needs. By installing protection circuits on the PLC and the experimental device or monitoring device to prevent damage to the PLC and the experimental device due to user's careless circuit wiring, and even if the PLC type and manufacturer are changed. It relates to a PLC training and monitoring device that can be connected by simple operation without changing the monitoring device.

The present invention for achieving the above object is in the educational experimental device using a PLC or a monitoring device using a PLC, the front panel having an input device, an output device, an LED display device, a FND display device, a PLC application experiment device and the like; In order to protect the PLC I / O contact to prevent damage of PLC I / O device which may be caused by wrong connection of PLC circuit, the protection device protects the I / O contact by using relay and semiconductor element, and the polarity of PLC I / O device is PNP, PLC I / O device polarity change device that can be used by simple switch operation regardless of NPN type, and PLC I / O device can be easily changed even if I / O signal connected to the experiment device changes according to PLC type change and PLC manufacturer change. It is composed of PCB for pin connection conversion, so it can be combined and configured according to user's needs, By installing a protection circuit on the monitoring device, it prevents the PLC and the experimental device from being damaged due to user's careless circuit wiring, and can be connected by simple operation without changing the experimental device and monitoring device even if the PLC model and the manufacturer are changed. It is characterized by.

Description

PLC Training & Monitoring Equipment {PLC Training & Monitoring Equpiment}

The present invention relates to an educational experimental device using a programmable logic controller (PLC) or a monitoring device using a PLC. More specifically, a system configuration such as an educational experimental device using a PLC or a monitoring device using a PLC is combined according to a user's needs. By installing protection circuits on the PLC and the experimental device or monitoring device to prevent damage to the PLC and the experimental device due to user's careless circuit wiring, and even if the PLC type and manufacturer are changed. It relates to a PLC training and monitoring device that can be connected by simple operation without changing the monitoring device.

In general, the device is configured to test the function of PLC through simple wiring between the educational experiment device using PLC or the monitoring device using PLC.

However, such an educational experimental device using a conventional PLC or a monitoring device using a PLC had the following problems.

First of all, the existing experimental training device using PLC or the monitoring device using PLC has the problems that all components are integrated and the price is high and the buyer cannot select and purchase.

In addition, since the experimental device or monitoring device is integrated, there was a structural problem in that the entire experimental device or monitoring device could not be used if the PLC type and manufacturer were different.

In addition, since the PLC and the experimental device or monitoring device are directly connected to the wire without any protection circuit, when the user implements the wrong circuit, the PLC and the experimental device have a fatal problem.

The present invention is devised to solve the above-mentioned shortcomings, and it is possible to combine a system configuration such as an educational experimental device using a PLC or a monitoring device using a PLC according to the user's needs, and to configure the PLC and the experimental device. Or by installing a protection circuit on the monitoring device to prevent damage to the PLC and the experimental device due to user's careless circuit wiring, and even if the PLC model and manufacturer are changed, PlC can be connected by simple operation without changing the experimental device and monitoring device. An object of the present invention is to provide an experimental apparatus and a monitoring apparatus.

The present invention for achieving the above object is in the educational experimental device using a PLC or a monitoring device using a PLC, the front panel having an input device, an output device, an LED display device, a FND display device, a PLC application experiment device and the like; In order to protect the PLC I / O contact to prevent damage of PLC I / O device which may be caused by wrong connection of PLC circuit, the protection device protects the I / O contact by using relay and semiconductor element, and the polarity of PLC I / O device is PNP, PLC I / O device polarity change device that can be used by simple switch operation regardless of NPN type, and PLC I / O device can be easily changed even if I / O signal connected to the experiment device changes according to PLC type change and PLC manufacturer change. It is composed of PCB for pin connection conversion, so it can be combined and configured according to user's needs, By installing a protection circuit on the monitoring device, it prevents the PLC and the experimental device from being damaged due to user's careless circuit wiring, and can be connected by simple operation without changing the experimental device and monitoring device even if the PLC model and the manufacturer are changed. It is characterized by.

Hereinafter, the configuration and the operation of the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The present invention provides an input device for connecting various input / output devices necessary for PLC circuit experiment to check whether the circuit configuration using PLC is correct by using the educational experiment device or the monitoring device using PLC before making the circuit. In order to protect the PLC I / O contact to prevent the damage of PLC input / output device which may be caused by wrong connection of PLC circuit and front panel where output device, LED display device, FND display device, PLC application experiment device, etc. can be installed. Protection device to protect input / output contact using relay and semiconductor device, polarity change device that can be used by simple switch operation regardless of PNP and NPN type of PLC input / output device, PLC type change and PLC manufacture Even if the I / O signal connected to the experimental device changes according to the company change, the pin of PLC I / O device is simple. It is configured to use without changing PLC test device or monitoring device by using PCB for wiring conversion, and protection device and PLC I / O device polarity conversion device are implemented on one PCB, PCB installed on the PCB and front panel Is connected by cable, and the protection device and the polarity conversion device are connected to the input / output device and the pin connection converter.

1 is a schematic view showing the overall appearance of the PLC training and monitoring device according to the present invention, Figure 2 is a schematic view showing the overall assembly of the PLC training and monitoring device according to the present invention, Figure 3 is a PLC training and A schematic diagram showing the internal circuit wiring of the monitoring device is shown.

Looking at the configuration of the present invention with reference to Figures 1, 2, 3 it can be seen that the PLC training and monitoring device is composed of one training and monitoring device gathered several components.

The front panel 1 includes panels such as an input device, an output device, an LCD display device, an FND display device, an LED display device, and a PLC application device for various PLC input / output experiments.

In order to prevent damage of PLC circuits due to electric shock of PLC between the front panel (1) and PLC (5), the protection of PLC and PLC training and monitoring device, and PLC I / O device polarity conversion PCB (2) Is located.

Protection of PLC and PLC Training and Monitoring Device and PLC I / O Device The polarity conversion PCB (2) is composed of relay, diode, switch, resistor, semiconductor chip, etc.The PLC I / O device has a simple polarity regardless of PNP or NPN. Electronic and electrical circuits are constructed to allow easy switching of polarity by switch operation.

PLC input and output device wiring method is connected to PLC type and manufacturer in a specific way, and the existing system should be equipped with various PLC training and monitoring devices according to PLC type and PLC manufacturer, but in this design As the wiring method of PLC I / O device changes, electronic and electric circuits are configured so that only the PCB (3) for pin connection conversion of PLC I / O device can be changed and used according to PLC type and PLC manufacturer without changing PLC training and monitoring device. In addition, the pin connection conversion PCB (3) of the PLC input and output device is composed of a connector for electronic and electrical circuit is configured to be easily removable without changing the circuit.

4 is a state diagram of the use of the PLC training and monitoring device according to the present invention, it can be seen that the various PCL training and monitoring devices are separately detachable so as to enable various electrical circuit experiments and monitoring using the PLC.

5 is a schematic view showing a combination of 2 and 3 of the PLC training and monitoring device according to the present invention, Figure 6 is a schematic diagram showing a state in which 2 and 3 of the PLC training and monitoring device according to the present invention is separated. PLC and PLC training and monitoring device protection and PLC I / O device polarity conversion PCB (2), PLC wiring I / O device pin connection conversion PCB (3) is attached and detached method, the seizure method for electrical and electronic It is designed to be electrically and quickly detachable using a mating connector.

Figure 7 is a perspective view showing a conventional PLC training and monitoring device, Figure 8 is a schematic diagram showing the internal main part of the conventional PLC training and monitoring device showing the prior art related to the present invention, compared with the present invention PLC training and It can be seen that the monitoring device is made in one piece so that addition or change of a new device is impossible.

It can also be seen that the connection between the PLC and the PLC training and monitoring device is directly connected between the PLC and the PLC training and monitoring device without any circuit connection to protect the damage caused by the electric shock of the PLC due to the wrong connection.

In the present invention, it is constructed in a completely different way from the prior art, and it is implemented to be composed of various PLC training and monitoring devices according to the circuit test method of the PLC, and damage to the PLC due to electric shock due to wrong connection of the PLC circuit. Electrical circuit is installed to prevent the damage, and it can be easily changed by using PLC model and PCB.

The present invention is not limited to the above-described specific preferred embodiment, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Effects of the present invention can be expected by the configuration and operation of the present invention as described above are as follows.

When designing various electric circuits using PLC, it is possible to quickly and accurately experiment whether the designed PLC circuit is operating normally through various PLC training and monitoring devices.

In addition, PLC training and monitoring can be configured in accordance with the contents of PLC training at the technical training site using PLC, thus enabling efficient and efficient training.

In addition, an electric circuit is installed to prevent damage to the PLC due to an electric shock caused by a mistake in the wiring of the PLC circuit. It can be easily changed by using PCB for conversion to prevent damage to PLC, and even if PLC model and manufacturer are changed, PLC training and monitoring device does not need to be purchased separately. Can be said to have a great economic effect.

In addition, PLC training and monitoring can be used by simple switch operation regardless of NPN and PNP polarity of PLC I / O device, so it is not necessary to purchase additional device by changing the polarity of PLC I / O. This is a very useful invention.

1 is a schematic view showing the overall appearance of the PLC training and monitoring apparatus according to the present invention,

2 is a schematic view showing the overall assembly of the PLC training and monitoring apparatus according to the present invention,

3 is a schematic diagram showing the internal circuit connection of the PLC training and monitoring apparatus according to the present invention,

4 is a state diagram using the PLC training and monitoring device according to the present invention,

5 is a schematic diagram showing the protection of the PLC training and monitoring device according to the present invention and the PLC input / output device polarity conversion device PCB and PC: a pin connection conversion device of the PLC input / output device is combined;

6 is a schematic diagram showing a state of protection of a PLC training and monitoring device and a PLC input / output device polarity conversion device PCB and a PC: a pin connection conversion device of the PLC input / output device is separated;

7 is a perspective view showing a conventional PLC training and monitoring device,

8 is a schematic diagram showing an internal main part of a conventional PLC training and monitoring apparatus;

<Description of the symbols for the main parts of the drawings>

(1): front panel PCB

(2): Protection and PLC I / O Polarity Inverter PCB

(3): PC: pin connection converter of PLC input / output device

(4): Outer box

(5): PLC

(7): connecting cable.

Claims (1)

The present invention provides an input device for connecting various input / output devices necessary for PLC circuit experiment to check whether the circuit configuration using PLC is correct by using the educational experiment device or the monitoring device using PLC before making the circuit. Front panel (1) to mount output device, LED display device, FND display device, PLC application experiment device, etc., A protection device that protects the input and output contacts by using a relay and a semiconductor element to protect the PLC I / O contact to prevent damage to the PLC I / O device, which may be caused by a wiring error in the PLC circuit; Polarity conversion device that can be used by simple switch operation irrespective of PNP and NPN type of PLC I / O device, Consists of a pin connection converter (3) of the PLC I / O device that enables simple use without changing the PLC test device or monitoring device even if the I / O signal connected to the test device changes according to the change of PLC type and the manufacturer of the PLC. It is The protection device and the PLC I / O device polarity conversion device are implemented on one PCB (2), the PCB installed on the PCB and the front panel is connected by a cable (6), and the protection device and the polarity conversion device are implemented. 2 is a PLC training and monitoring device, characterized in that connected to the input and output device pin connection converter.