KR20150006551A - Programmable Logic Controller system - Google Patents

Programmable Logic Controller system Download PDF

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Publication number
KR20150006551A
KR20150006551A KR1020130080037A KR20130080037A KR20150006551A KR 20150006551 A KR20150006551 A KR 20150006551A KR 1020130080037 A KR1020130080037 A KR 1020130080037A KR 20130080037 A KR20130080037 A KR 20130080037A KR 20150006551 A KR20150006551 A KR 20150006551A
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KR
South Korea
Prior art keywords
power
module
extension base
communication
communication signal
Prior art date
Application number
KR1020130080037A
Other languages
Korean (ko)
Inventor
전유중
Original Assignee
엘에스산전 주식회사
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Publication date
Application filed by 엘에스산전 주식회사 filed Critical 엘에스산전 주식회사
Priority to KR1020130080037A priority Critical patent/KR20150006551A/en
Publication of KR20150006551A publication Critical patent/KR20150006551A/en

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    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/11—Plc I-O input output
    • G05B2219/1198—Activate output only if power of the output signal is sufficient

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Programmable Controllers (AREA)

Abstract

The present invention reduces energy consumption by shutting off the power supply of the extension base when the extension base is not operated in a PLC (Programmable Logic Controller) system. And an extension base on which a plurality of modules including a second power module, a power control module, and a second communication module are mounted, wherein the CPU module is configured to cut off the operation power of the extension base And transmits the power cutoff communication signal to the extension base through the first communication module when the second communication module receives the power cutoff communication signal, And a PLC system for controlling the module so as not to supply operating power.

Description

A PLC system (Programmable Logic Controller system)

The present invention relates to a PLC system for reducing energy consumption by shutting off power supply to an extension base when the extension base is not required to operate.

As the field of automation developed with advanced technology, various kinds of devices for factory automation appeared.

As one of the devices for factory automation, a PLC system uses programmable memory to perform functions such as logic, sequence, timing, counting, and arithmetic through digital or analog input and output modules, It is a device that controls various kinds of machines or processors and is a key element of factory automation and an effective means to meet various factory automation requirements.

The PLC system typically includes a basic base including a computing device and a plurality of extension bases for performing data communication with the outside under the control of the computing device, Each of the plurality of extension bases includes a communication module.

Wherein the plurality of extension bases are connected to each other so that communication modules provided in the one basic base and the plurality of extension bases are communicably connected to each other, And the data transmitted by the plurality of extension bases is received by the one basic base.

In such a PLC system, when there is an extension base that does not need to be operated, it is necessary to cut off the power supply to the extension base to save energy consumption.

To this end, a wiring breaker is conventionally provided between the power source and the PLC system. When the PLC system is not required to be operated, an operator directly operates the wiring breaker to cut off the power.

A problem to be solved by the present invention is to provide a power supply system capable of reducing energy by shutting off the power of the extension base according to the control of a CPU (Central Processing Unit) module mounted on the base base, PLC system.

Another object of the present invention is to provide a PLC system which can easily supply electric power according to the control of the CPU module when it is necessary to operate the extension base that has shut off the power again.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. There will be.

The PLC system of the present invention includes a basic base on which a plurality of modules including a first power module, a CPU module and a first communication module are mounted, and a plurality of modules including a second power module, a power control module, and a second communication module Wherein the CPU module generates a power cutoff communication signal to transmit the power cutoff communication signal to the extension base via the first communication module when the operation power of the extension base is to be cut off, May control the second power module not to supply operating power when the second communication module receives the power cut communication signal.

The power supply control module may control the second power supply module to shut off operation power supplied to a plurality of modules mounted on the extension base except for the power supply control module and the second communication module.

When the operation power of the extension base is to be interrupted, the time value of the internal RTC (Real Time Clock) of the CPU module is a time value to block the operation power of the extension base, or the operation power cutoff command of the Programming And Debugging Tool (PADT) May be generated.

Wherein the CPU module generates a power supply communication signal and transmits the power supply communication signal to the extension base via the first communication module when the operation power is to be supplied to the extension base after generating the power shutdown communication signal, The control module may control the second power module to supply operating power to all the plurality of modules mounted on the extension base when the second communication module receives the power supply communication signal.

If the time value of the internal RTC (Real Time Clock) of the CPU module is a time value to supply the operation power of the extension base or an operation power supply command of the programming and debugging tool (PADT) May be generated.

According to the PLC system of the present invention, the power-off communication signal is generated according to the internal RTC time value preset in the CPU module or according to the command value of the PADT, To be controlled.

Therefore, when the operator wants to stop the operation of the extension base, the operator can easily cut off the operation power without searching the installation position of the extension base.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which like reference numerals refer to like elements throughout.
1 is a block diagram showing a configuration of a conventional PLC system, and Fig.
2 is a block diagram showing a configuration of an embodiment of the PLC system of the present invention.

The following detailed description is merely illustrative, and is merely an example of the present invention. Further, the principles and concepts of the present invention are provided for the purpose of being most useful and readily explaining.

Accordingly, it is not intended to provide a more detailed structure than is necessary for a basic understanding of the present invention, but it should be understood by those skilled in the art that various forms that can be practiced in the present invention are illustrated in the drawings.

1 is a block diagram showing a configuration of a conventional PLC system. Here, reference numeral 100 denotes a PLC system. The PLC system 100 performs a predetermined operation including a factory automation function according to a pre-stored predetermined program.

Reference numeral 110 denotes a power source. The power source 110 supplies operating power to the PLC system 100.

Reference numeral 120 denotes a circuit breaker for wiring. The wiring breaker 120 is switched according to the operation of the operator and supplies or cuts off the operating power output from the power source 110 to the PLC system 100.

In the conventional PLC system having such a configuration, when it is necessary to operate the PLC system 100, the operator operates the circuit breaker 120 so that the operation power output from the power source 110 is applied to the circuit breaker 120, To the PLC system 100 via the network.

Then, the PLC system 100 operates normally and performs a predetermined operation according to a program stored in advance.

If it is not necessary to operate the PLC system 100, the operator operates the wiring breaker 120 to cut off the operation power output from the power source 110 from the wiring breaker 120, 100).

Then, the PLC system 100 is not supplied with the operating power and is not operated, thereby saving energy consumption.

However, in the conventional PLC system as described above, the wiring breaker 120 must be provided between the power source 110 and the PLC system 100, and when the wiring breaker 120 is to be operated, It is necessary to move to the installation place of the circuit breaker 120 and operate it manually, which causes a problem that a lot of time and labor are wasted.

2 is a block diagram showing a configuration of an embodiment of the PLC system of the present invention. Here, reference numeral 200 denotes a basic base. A plurality of modules including the power module 201, the CPU module 203, and the first communication module 205 may be mounted on the basic base 200, for example.

The power module 201 supplies operating power to a plurality of modules including the CPU module 203 and the first communication module 205 mounted on the basic base 200.

The CPU module 203 performs a predetermined operation according to a program stored in advance. According to the present invention, when the consumption of energy is to be reduced according to the present invention, a power shutoff communication signal is generated to be transmitted to the outside, and when power is again used to operate, a power supply communication signal is generated and transmitted to the outside .

The first communication module 205 transmits the power shutdown communication signal and the power supply communication signal to the outside under the control of the CPU module 203.

Reference numerals 210 (210-1, 210-2, ..., 210-N) are a plurality of extension bases. Each of the plurality of extension bases 210 includes a power module 211, a power control module 213, and a second communication module 215, and a plurality of modules are installed.

The power supply module 211 includes a power supply control module 213 and a second communication module 215 mounted on the plurality of extension bases 210 to supply operation power to a plurality of modules.

The power control module 213 controls the power supply module 211 to supply operating power according to the power shutdown communication signal and the power supply communication signal.

The second communication module 215 communicates with the first communication module 205 of the basic base 200 to receive the power shutdown communication signal and the power supply communication signal, And provides the power supply communication signal to the power supply control module 213.

The PLC system according to the present invention configured as described above is configured such that the power module 201 mounted on the basic base 200 includes a CPU module 203 and a first communication module 205 mounted on the basic base 200, And supplies operating power to the modules.

The power supply modules 211 mounted on each of the plurality of extension bases 210 are also connected to the power supply control module 213 and the second communication module 215 mounted on each of the plurality of extension bases 210 And supplies the operating power to a plurality of modules including the module.

In this state, the CPU module 203 determines whether or not the operation of the plurality of extension bases 210 should be stopped while performing a predetermined operation according to a program stored in advance.

For example, the CPU module 203 determines whether or not the operation of the plurality of extension bases 210 should be stopped according to the time value of the built-in RTC (Real Time Clock) or the instruction of the programming and debugging tool (PADT) .

When the operation of the plurality of extension bases 210 is to be stopped, the CPU module 203 generates a power shutdown communication signal, and the power shutdown communication signal is generated through the first communication module 205, And is transmitted to the second communication module 215 mounted on each of the extension bases 210.

The second communication module 215 provided in each of the plurality of extension bases 210 receives the power shutdown communication signal and provides the power shutdown communication signal to the power control module 213.

Then, the power control module 213 controls the power module 211 to prevent the operation power from being supplied according to the power cutoff control signal.

Here, the second communication module 215 must receive a power supply communication signal generated by the CPU module 203 of the basic base 200, and the power supply control module 213 receives the power supply communication signal It is necessary to control the power supply module 211 to supply operating power again.

The power supply control module 213 controls the power supply module 211 according to the power supply cutoff control signal to control the power supply control module 213 among the plurality of modules installed in the plurality of extension bases 210. [ And the second communication module 215, and does not supply operating power to the remaining modules.

In a state where the operation power of the plurality of extension bases 210 is cut off, the CPU module 203 stops the calculation operation and waits for the energy consumption to be minimized.

In this state, the CPU module 203 determines whether the plurality of extension bases 210 should be operated again.

For example, the CPU module 203 determines whether a plurality of extension bases 210 should be operated again according to a command of a programming and debugging tool (PADT) or a time value of a built-in RTC (Real Time Clock) .

When the plurality of extension bases 210 are to be operated again, the CPU module 203 generates a power supply communication signal, and the generated power supply communication signal is transmitted through the first communication module 205, And transmitted to the second communication module 215 mounted on each of the base units 210.

Then, the second communication module 215 provided in each of the plurality of extension bases 210 receives the power-off communication signal, and the power control module 213 controls the power- And controls the power module 211 to supply the operating power.

When the power module 211 supplies operating power again, the plurality of extension bases 210 performs an initialization operation, and the CPU module 203 performs a predetermined arithmetic operation, And controls the operation of the base 210.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, I will understand.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by equivalents to the appended claims, as well as the appended claims.

200: basic base 201, 211: power module
203: CPU module 205, 215: communication module
210: Expansion base 213: Power control module

Claims (5)

A basic base to which a plurality of modules including a first power module, a CPU module, and a first communication module are mounted; And
An extension base on which a plurality of modules including a second power module, a power control module, and a second communication module are mounted,
The CPU module,
And generates an electric power cutoff communication signal to transmit the power cutoff communication signal to the extension base through the first communication module when the operation power of the extension base is to be cut off,
The power control module includes:
And controls the second power module not to supply operating power when the second communication module receives the power cut communication signal.
The method according to claim 1,
The power control module includes:
Wherein the second power module controls to shut off the operation power supplied to a plurality of modules mounted on the extension base except for the power control module and the second communication module.
The method according to claim 1,
When the operation power of the extension base is to be cut off,
And a case in which an internal RTC (Real Time Clock) time value of the CPU module is a time value for shutting down the operation power of the extension base or an operation power cutoff command of a programming and debugging tool (PADT) is generated.
The method according to claim 1,
The CPU module,
Generating an electric power supply communication signal and transmitting the electric power supply communication signal to the extension base via the first communication module when the operation power is to be supplied to the extension base after generating the power interception communication signal,
The power control module includes:
And controls the second power module to supply operating power to a plurality of modules mounted on the extension base when the second communication module receives the power supply communication signal.
5. The method of claim 4,
When it is desired to supply operating power to the extension base,
Wherein a time value of an internal RTC (Real Time Clock) of the CPU module is a time value to supply an operation power of the extension base, or an operation power supply command of a programming and debugging tool (PADT) is generated.
KR1020130080037A 2013-07-09 2013-07-09 Programmable Logic Controller system KR20150006551A (en)

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KR1020130080037A KR20150006551A (en) 2013-07-09 2013-07-09 Programmable Logic Controller system

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Application Number Priority Date Filing Date Title
KR1020130080037A KR20150006551A (en) 2013-07-09 2013-07-09 Programmable Logic Controller system

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KR20150006551A true KR20150006551A (en) 2015-01-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106292521A (en) * 2016-10-08 2017-01-04 南京三乐微波技术发展有限公司 A kind of high power single-tube microwave power supply ageing behavior monitoring arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106292521A (en) * 2016-10-08 2017-01-04 南京三乐微波技术发展有限公司 A kind of high power single-tube microwave power supply ageing behavior monitoring arrangement

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