KR20130119798A - Apparatus and method for controlling of plc - Google Patents

Apparatus and method for controlling of plc Download PDF

Info

Publication number
KR20130119798A
KR20130119798A KR1020120042885A KR20120042885A KR20130119798A KR 20130119798 A KR20130119798 A KR 20130119798A KR 1020120042885 A KR1020120042885 A KR 1020120042885A KR 20120042885 A KR20120042885 A KR 20120042885A KR 20130119798 A KR20130119798 A KR 20130119798A
Authority
KR
South Korea
Prior art keywords
plc
slave
monitoring device
controlling
data
Prior art date
Application number
KR1020120042885A
Other languages
Korean (ko)
Inventor
이상헌
Original Assignee
엘에스산전 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘에스산전 주식회사 filed Critical 엘에스산전 주식회사
Priority to KR1020120042885A priority Critical patent/KR20130119798A/en
Publication of KR20130119798A publication Critical patent/KR20130119798A/en

Links

Images

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/12—Plc mp multi processor system
    • G05B2219/1215—Master slave system

Abstract

TECHNICAL FIELD The present invention relates to PL, and relates to an apparatus and a method for controlling PL.
The present invention includes an input unit for receiving data from at least one slave connected to the PLC; An output unit for outputting a control signal for controlling the slave; A communication unit 140 including a wireless communication module for transmitting data of the at least one slave received from the input unit and operation information of the PLC according to the data to at least one monitoring device; And a controller configured to transmit data received from the slave through the communication unit 140 and generate a control signal for controlling the slave according to the control signal received from the monitoring apparatus.

Description

Apparatus and method for controlling of PLC

TECHNICAL FIELD The present invention relates to PL, and relates to an apparatus and a method for controlling PL.

In general, a programmable logic controller (PLC) is widely used in an industrial field related to process control. As the control range of PLC is gradually expanded due to the diversification of the industry, PLC is designated as the master and peripheral devices (motors, valve units, etc.) are designated as slaves so that they can be controlled by establishing a network environment. .

A general PLC may connect a monitoring system to output status information of a slave collected in a PLC system, status information of an internal memory according to the status information, and various control information to the monitoring system.

The monitoring system outputs various data received from the PLC system in various ways such as video, image, audio, etc., and remotely manages the management system connected to the various slaves to reduce the management burden and identify the correct operation in real time, thereby reducing cost and utility. We can increase.

However, the existing monitoring system uses a USB or RS232 communication method using a PLC system and a wire.

The connecting device mainly uses a notebook computer to communicate with a PLC system through an application.

In the conventional case, due to the characteristics of the PLC system, it is often located inside the control panel, and the control panel is also buried or located in the highlands, so accessibility is difficult. In addition, even in a general position, that is, in an easily accessible position, the control panel itself is often shielded, so it may not be easy to grasp the state of the PLC system.

In addition, to grasp the status information and device information of the PLC system, a notebook, a power supply for driving it, and a cable such as USB, RS232C, etc. to connect the notebook and the PLC are required. However, the configuration of the communication connection via the cable may not be easy to access due to the distance limitation of the cable itself.

In addition, additional problems may occur due to the noise generated from various devices connected to the PLC system and the risk of damage to the device due to the potential difference between the notebook and the PLC.

The present invention provides an apparatus and method for PLC control for checking and controlling the state of the PLC system and the state information of data received from various control systems in a monitoring system located at a remote location.

In another aspect, the present invention provides a device and method for PLC control to be able to manage and monitor a large number of facilities from a remote location, and to quickly notify the administrator of the abnormal operation of the facility.

In accordance with another aspect of the present invention, an apparatus for controlling PLC includes: an input unit configured to receive data from at least one slave connected to the PLC; An output unit for outputting a control signal for controlling the slave; A communication unit 140 including a wireless communication module for transmitting data of the at least one slave received from the input unit and operation information of the PLC according to the data to at least one monitoring device; And a controller configured to transmit data received from the slave through the communication unit 140 and generate a control signal for controlling the slave according to the control signal received from the monitoring apparatus.

In addition, the method for PLC control according to an embodiment of the present invention comprises the steps of receiving data from at least one slave; Collecting the received data and performing communication connection approval to transmit the received data to at least one preset monitoring device through wireless communication; And transmitting the collected data to the approved at least one monitoring device.

According to the present invention, in the apparatus and method for the control of the PLC, by establishing a network network using wireless communication to monitor in a remote place to monitor and control the measurement situation in various forms through a graphical user interface (GUI) It can have the effect of making the output.

In addition, according to the present invention, it is possible to have an effect on the real-time state detection to enable the user to easily check and collect the state information according to the malfunction of the facility.

1 is a block diagram of a monitoring system for controlling a PLC to which an embodiment of the present invention is applied.
2 is an operation flowchart for controlling a PLC system according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 is a block diagram of a monitoring system for controlling a PLC to which an embodiment of the present invention is applied.

Referring to FIG. 1, a monitoring system for controlling a PLC includes a remote monitoring device 20 and a PLC system 100.

The PLC system 100 may include a power supply unit 110, an input unit 120, an output unit 130, a communication unit 140, a memory unit 150, and a controller 160. And each slave, which is a peripheral device of PLC.

The power supply unit 110 may supply power for operation to the PLC system. The power supply unit 110 may apply power to the control unit 160 and at least one input / output unit and each component that are organically connected to the PLC.

The input unit 120 may receive state information, operation information, and collected data from a plurality of peripheral devices (slaves) connected to the PLC 100. The slave 10 may exist in the form of a motor, a valve unit, various sensors for data collection, and the like.

The output unit 130 may transmit a reception confirmation signal and a control signal according to various information and data of the slave 10 input to the input unit 120 to the corresponding slave 10.

The communication unit 140 may transmit the state information and data of the slave 10 input to the input unit 120 to the remote monitoring device 20 according to an embodiment of the present invention. In addition, the communication unit 140 may receive the control signal of the PLC and the control signal to be transmitted to each slave 10 from the monitoring device 20.

The communication unit 140 may include a Bluetooth module according to an embodiment of the present invention, and transmit and receive data and control signals through Bluetooth communication with a Bluetooth module included in a remote monitoring apparatus through the module. In addition, communication between Bluetooth and PLC can communicate using UART new Bluetooth IC. In addition, the communication unit 140 may use an additional antenna connection port for enhancing the transmission power. The communication unit 140 may include a Bluetooth module or one Bluetooth module may be configured to enable wireless communication in one-to-one communication with each of the plurality of remote monitoring devices 20 (21, 22, and 23).

The memory unit 150 may store identifier information of the device for Bluetooth communication with the remote monitoring device. In addition, information about a newly connected monitoring device may be updated and stored, or information about a previously stored monitoring device may be deleted. The memory unit 150 may store various applications required for monitoring in the remote monitoring system 20. The application may be provided at the request of a newly connected monitoring device.

The controller 160 may perform overall control of the components of the PLC 100. In particular, the controller 160 may control Bluetooth communication with the remote monitoring apparatus 20 connected to the PLC 100. The controller 160 controls the communication unit 140 to transmit / receive data of the slaves 10 and state information of the PLC 100 through Bluetooth wireless communication with the plurality of remote monitoring apparatuses 21, 22, and 23. can do. The control unit 160 includes the data received from each slave 10 in the actual control data code between the start code and the end code of the data packet through the communication unit 140 to transmit to the monitoring devices 21, 22, 23. Can be controlled.

The remote monitoring device 20 connected to the PLC 100 via Bluetooth wireless communication includes a module capable of wireless communication such as Bluetooth, such as a notebook 21, a tablet PC 22, a mobile terminal 23, and the like. It may be a terminal capable of outputting data received from the seed 100 and various information.

As described above, the apparatus for PLC control and monitoring according to an embodiment of the present invention includes data collected from a plurality of slaves 20 connected to the PLC 100 and the operation state information of the PLC according to the Bluetooth module. It may be transmitted to the at least one monitoring device 20 that exists in a remote location through the communication unit 140, including a Bluetooth module. Therefore, the remote monitoring device 20 may monitor and control various types of information and data received from the PLC 100 through Bluetooth communication.

Hereinafter, a method for controlling PLC through the above configuration will be described in detail.

2 is an operation flowchart for controlling a PLC system according to an embodiment of the present invention.

Referring to FIG. 2, the controller 160 may perform a communication standby mode for transmitting data collected from at least one slave 20 and state information of a PLC according to the data (step 202).

When the controller 180 detects the connection request signal of the monitoring device 10 while performing the communication standby mode, the controller 180 can search for a Bluetooth identifier for Bluetooth communication with the monitoring device 10 to be connected. In operation 206, that is, the controller 180 performs a Bluetooth communication approval process for transmitting the data collected from the slave 20 and the corresponding information to the monitoring device 10 through the communication unit 140. The Bluetooth module included in the monitoring device 10 may be searched for Bluetooth communication, and a Bluetooth communication approval request signal requested by the found Bluetooth module may be received. The controller 180 may approve Bluetooth communication of the corresponding monitoring device 10 according to the Bluetooth communication approval request signal received from the monitoring device 10 (step 208) and connect the Bluetooth communication (step 210).

The controller 180 may transmit the data received from the at least one slave 10 and the state information of the PLC according to the connected Bluetooth communication to the monitoring device. In addition, the monitoring device 10 may receive a control signal for the data and operation of the slave and the operation of the PLC from the monitoring device 10 (step 212).

The controller 180 may be limited to the preset monitoring device 10 according to the data received from the slave 20 and the characteristics of the data.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.

The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

Claims (7)

An input unit for receiving data from at least one slave connected to the PLC;
An output unit for outputting a control signal for controlling the slave;
A communication unit 140 including a wireless communication module for transmitting data of the at least one slave received from the input unit and operation information of the PLC according to the data to at least one monitoring device;
And a controller configured to transmit data received from the slave through the communication unit 140 and generate a control signal for controlling the slave according to the control signal received from the monitoring apparatus.
Device for controlling PLC. The method of claim 1,
The communication unit
The PLC and the wireless communication module are connected to the UART communication, and transmits the status information of the slave or the PLC to the at least one monitoring device through the wired wireless communication module.
Device for controlling PLC. The method of claim 1,
The apparatus may further include a memory including information about the at least one monitoring device.
Device for controlling PLC. The method of claim 3,
The memory unit
The monitoring device outputs data received from the PLC, and stores the application file to be installed to receive the control signal to be transmitted to the PLC
Device for controlling PLC. The method of claim 1,
The control unit
To transmit the state information of the PLC according to the data received from the slave to the monitoring device preset according to the slave
Device for controlling PLC. Receiving data from at least one slave;
Collecting the received data and performing communication connection approval to transmit the received data to at least one preset monitoring device through wireless communication;
Transmitting the collected data to the approved at least one monitoring device.
Method for controlling PLC. The method according to claim 6,
Performing the communication connection approval is
Confirming identifier information of a monitoring device for preset Bluetooth communication;
Approving a Bluetooth communication connection of the monitoring device whose identifier is confirmed, and connecting communication with the approved at least one monitoring device through Bluetooth communication;
Method for controlling PLC.
KR1020120042885A 2012-04-24 2012-04-24 Apparatus and method for controlling of plc KR20130119798A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120042885A KR20130119798A (en) 2012-04-24 2012-04-24 Apparatus and method for controlling of plc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120042885A KR20130119798A (en) 2012-04-24 2012-04-24 Apparatus and method for controlling of plc

Publications (1)

Publication Number Publication Date
KR20130119798A true KR20130119798A (en) 2013-11-01

Family

ID=49850708

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120042885A KR20130119798A (en) 2012-04-24 2012-04-24 Apparatus and method for controlling of plc

Country Status (1)

Country Link
KR (1) KR20130119798A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170009083A (en) 2015-07-15 2017-01-25 임영수 Apparatus for PLC
CN110531696A (en) * 2019-09-10 2019-12-03 浙江中控技术股份有限公司 Equipment controlling plan design framework and method, apparatus control method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170009083A (en) 2015-07-15 2017-01-25 임영수 Apparatus for PLC
CN110531696A (en) * 2019-09-10 2019-12-03 浙江中控技术股份有限公司 Equipment controlling plan design framework and method, apparatus control method

Similar Documents

Publication Publication Date Title
US11003976B2 (en) Methods and apparatus for RFID communications in a process control system
US11537178B2 (en) Server rack for improved data center management
RU2653926C2 (en) Control apparatus, components and mobile service apparatus for hvac system
RU2669705C2 (en) Method and apparatus to manage and maintain process control system field devices using radio-frequency identification (rfid) devices
RU2668410C2 (en) Methods and apparatus for long range rfid communications in a process control system
CN106325239B (en) Base station for collecting data from local sensors
CN107688548B (en) System, device and method for expanding sequence communication and system for expanding communication port
CN102644798A (en) Method and apparatus for partial stroke testing of emergency shutdown valve
CN103683526A (en) Energy supply system for a field device with a wireless module
CN104678798A (en) Method for operating a field device
CN106249702A (en) Method of communicating signals, automation equipment, drive system, communication system
CN103383559A (en) Flow computers having wireless communication protocol interfaces and related methods
JP5792866B2 (en) Profibus DP master device
US11128527B2 (en) Installation support device and method for installation process support for an automation system
KR20130119798A (en) Apparatus and method for controlling of plc
US20140267745A1 (en) Surveillance System With Intelligently Interchangeable Cameras
CN102809201A (en) Remote controller capable of inquiring running parameters of air conditioner and inquiring method
US20150005909A1 (en) Communication Device, Communication Method, and Management Device
CN105717882A (en) Large-scale thermal power generating unit EDPF-NT distributed control system
KR20140114085A (en) Method for Device Control with Human Machine Interface System
WO2013005230A2 (en) Universal learning based re-configurable adaptor
JP6279910B2 (en) Inverter device
CN109450718B (en) Remote diagnosis method and device for wireless routing equipment
CN203800930U (en) Data acquisition and transmission system
KR101385486B1 (en) Electric device managing system with power line communication

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination