CN109634205A - PLC device with wireless communication function - Google Patents
PLC device with wireless communication function Download PDFInfo
- Publication number
- CN109634205A CN109634205A CN201811571664.8A CN201811571664A CN109634205A CN 109634205 A CN109634205 A CN 109634205A CN 201811571664 A CN201811571664 A CN 201811571664A CN 109634205 A CN109634205 A CN 109634205A
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- China
- Prior art keywords
- wireless communication
- communication module
- cpu
- module
- plc device
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Classifications
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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
- G05B19/054—Input/output
-
- 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
- G05B2219/1103—Special, intelligent I-O processor, also plc can only access via processor
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
This application discloses a kind of PLC devices with wireless communication function, comprising: CPU, input module, output module, wire communication module and wireless communication module；CPU receives the input signal that input module is sent, and executes user program, is analyzed input signal and handled, and output control signal sends control signals to output module；CPU carries out information exchange by the electrical connection inside PLC device with wire communication module or with wireless communication module；Wireless communication module is WIFI wireless communication module or LORA wireless communication module；Communication interface between WIFI wireless communication module and CPU is UART interface；Communication interface between LORA wireless communication module and CPU is UART interface；The energization pins of wireless communication module place apparatus for storing electrical energy.Information exchange between PLC and host computer can carry out through wireless communication, more convenient, more flexible.
Description
Technical field
The present invention relates to electronic communication field more particularly to a kind of PLC devices with wireless communication function.
Background technique
Currently, the releases such as PLC (programmable logic controller (PLC)) manufacturer such as Siemens, Omron, Mitsubishi of the market mainstream
PLC product, which is still by the way of " wire communication ", the operation such as be programmed to PLC, monitor and safeguard, that is, passes through cable and connect
It meets PLC to be communicated with host computer, due to the limitation of cable, does not have flexibility in the use of PLC, it is also inconvenient.
The country have many manufacturers be proposed with traditional matching used wireless telecom equipment of PLC device, solve and PLC set
The problem of standby remote operation, but such application mode increases cost, increases due to needing two equipment to be used in conjunction with each other
To the occupancy of equipment installation space.
Summary of the invention
The invention discloses a kind of PLC device with wireless communication function, including CPU, input module, output module,
Wire communication module and wireless communication module, wherein
The input module is coupled with the CPU phase, for input signal to be sent to the CPU；
The output module is coupled with the CPU phase, the output signal sent for receiving the CPU；
The CPU respectively with the input module, the output module, the wire communication module and described wireless
Communication module mutually couples, and the CPU receives the input signal that the input module is sent, and user program is executed, to described
Input signal is analyzed and is handled, and the control signal is sent to the output module by output control signal；The CPU
Letter is carried out by the electrical connection inside the PLC device with the wire communication module or with the wireless communication module
Breath interaction；
The wireless communication module is coupled with the CPU phase, for carrying out information exchange with the CPU；The CPU and institute
Stating has electrical connection between wireless communication module；The wireless communication module is WIFI wireless communication module or remote-wireless electricity
LORA wireless communication module；Communication interface between the WIFI wireless communication module and the CPU is universal asynchronous receiving-transmitting biography
Defeated device UART interface；Communication interface between the remote-wireless electricity LORA wireless communication module and the CPU is general different
Walk receiving-transmitting transmitter UART interface；The energization pins of the wireless communication module place apparatus for storing electrical energy；
The wire communication module is coupled with the CPU phase, for carrying out information exchange with the CPU.
Preferably, the apparatus for storing electrical energy is super capacitor or button cell.
Preferably, the electrical connection is the copper conductor or copper core connection cables on printing board PCB.
Preferably, there is electrical connection between the apparatus for storing electrical energy and the wireless communication module.
Preferably, the electrical connection between the apparatus for storing electrical energy and the wireless communication module is printed circuit board
Copper conductor or copper core connection cables on PCB.
Compared with prior art, the PLC device provided by the invention with wireless communication function reaches following beneficial to effect
Fruit:
First, the information exchange between PLC device of the invention and host computer can carry out through wireless communication, make
PLC device using more convenient, it is more flexible.
Second, wireless communication module is fused in PLC device and is integrally formed by the present invention, significantly reduces cost, and
Installation space occupies little space.
Third, wireless communication module power supply pin of the invention place apparatus for storing electrical energy, even if PLC device powers off, nothing
Line communication module may continue to work normally.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the PLC device in the embodiment of the present invention 1 with wireless communication function；
Fig. 2 is the CPU and host computer communication flow diagram of the PLC device in the embodiment of the present invention 3 with wireless communication function.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.It should be noted that described embodiment only actually is a part of the embodiment of the present invention, rather than whole realities
Example is applied, and is actually merely illustrative, never as to the present invention and its application or any restrictions used.The guarantor of the application
Protect range as defined by the appended claims.
Embodiment 1:
Specific embodiment shown in Figure 1 for the herein described PLC device with wireless communication function, the equipment packet
It includes: CPU 101, input module 102, output module 103, wire communication module 104 and wireless communication module 105, wherein
The input module 102 is coupled with 101 phase of CPU, for input signal to be sent to the CPU 101；
The output module 103 is coupled with 101 phase of CPU, the output letter sent for receiving the CPU 101
Number；
The CPU 101 respectively with the input module 102, the output module 103, the wire communication module 104,
And 105 phase of the wireless communication module coupling, the CPU receive the input signal that the input module 102 is sent, hold
Row user program is analyzed and is handled to the input signal, and the control signal is sent to described by output control signal
Output module 103；The CPU and the wire communication module or pass through in the PLC device with the wireless communication module
The electrical connection in portion carries out information exchange；
The wireless communication module 105 is coupled with 101 phase of CPU, for carrying out information exchange with the CPU 101；
There is electrical connection between the CPU 101 and the wireless communication module 105；The wireless communication module 105 is that WIFI is wireless
Communication module or remote-wireless electricity LORA (remote-wireless electricity: Long Range Radio) wireless communication module；It is described
Communication interface between WIFI wireless communication module and the CPU is universal asynchronous receiving-transmitting transmitter UART (universal asynchronous receiving-transmitting
Transmitter: Universal Asynchronous Receiver/Transmitter) interface；The remote-wireless electricity LORA
Communication interface between wireless communication module and the CPU is universal asynchronous receiving-transmitting transmitter UART interface；The wireless communication
The energization pins of module 105 place apparatus for storing electrical energy；
The wire communication module 104 is coupled with 101 phase of CPU, for carrying out information exchange with the CPU 101.
Embodiment 2:
On the basis of embodiment 1, the present embodiment is another implementation of the PLC device with wireless communication function
Example.
The energization pins of wireless communication module 105 described in this example place apparatus for storing electrical energy, the electric energy storage dress
It is set to super capacitor or button cell；There are electrical connection, institute between the apparatus for storing electrical energy and the wireless communication module 105
State electrical connection between apparatus for storing electrical energy and the wireless communication module 105 be copper conductor on printing board PCB or
Copper core connection cables.
There is electrical connection between the CPU 101 and the wireless communication module 105, the electrical connection is printed circuit
Copper conductor or copper core connection cables on plate PCB.
Embodiment 3:
The present embodiment is a practical embodiment of the PLC device with wireless communication function.
CPU 101, input module 102, output module 103, wire communication module 104 and the nothing for including inside PLC device
Line communication module 105.CPU 101 is the core of PLC device, it constantly acquires the input signal of input module 102, executes use
Family program updates the output signal of output module 103.Input module 102 and output module 103 be contact external controlled device with
The bridge of CPU 101.Input module 102 is used to receive and acquire the input signal of external equipment transmission.Output module 103 exports
Signal is used to drive the external equipment (such as: the equipment such as contactor, indicator light, solenoid valve) that executes to work.Wire communication mould
Block 104 for realizing CPU 101 and host computer 106 communication, if PLC program download, PLC program on-line debugging, PLC work shape
State monitoring, PLC firmware update etc., wire communication module 104 are only supported to be communicated by cable with host computer 106, not supported
Wireless communication, host computer 106 are general general computer, including desktop computer, laptop and server etc..Wireless communication
Module 105 is similar with 104 function of wire communication module, is equally used for realizing the communication of CPU101 and host computer 106, due to wireless
Communication module 105 effectively avoids the limitation of " cable ", so that PLC device is more convenient to use, flexible.In PLC device
, there is electric connecting relation in inside between wireless communication module 105 and CPU 101, the interaction of information may be implemented whereby, electrically connect
The copper conductor or copper core connection cables being connected on printing board PCB.
As shown in Fig. 2, CPU 101 and the communication process of external host computer 106 are: CPU 101 is sent to external upper
The data of machine 106 first pass through the electrical connection between CPU 101 and wireless communication module 105, are transmitted to wireless communication module
105, wireless communication module 105 carries out transparent transmission to data, sends the data to host computer through wireless communication
106, similarly, the mode that the data that host computer 106 is sent to CPU 101 first pass through wireless communication is transmitted to wireless communication module
105, wireless communication module 105 transfers data to CPU 101 by the electrical connection between CPU 101.In order to guarantee number
According to correct, reliable transmission, the transmission of data can be controlled using data check and retransmission mechanism.The CPU of PLC device
101 to host computer 106 send data when, while send data verification and, host computer 106 after receiving the data, meeting
Calculate the verification of data received and, when verification and matching when calculating resulting verification and with receiving, that is, think data
It is correctly received, host computer 106 sends answer signal to the CPU 101 of PLC device at this time；When calculate it is resulting verification and with connect
When the verification and mismatch that receive, that is, think that mistake occur in transmission process in data, host computer 106 is no longer set to PLC at this time
Standby CPU 101 sends answer signal, if the CPU 101 of PLC device can not receive before the deadline answer signal or
The answer signal mistake received, then it is assumed that data send failure, and the CPU 101 of PLC device can automatically retransmit data, number
When being more than defined number according to the number of retransmission, then " indicator light " or " display screen " is passed through by the CPU of PLC device 101
Deng report mistake.Similarly, data check and retransmission mechanism when host computer 106 sends data to the CPU 101 of PLC device are also
So.
Due to using wireless communication module 105, the wireless communication of host computer 106 Yu PLC device may be implemented.PLC with
The information exchange of host computer 106, information exchange include: that PLC program is downloaded, PLC program on-line debugging, PLC working state monitoring,
PLC firmware update etc. can carry out through wireless communication, without reusing cable for host computer 106 and PLC device
It is connected.
Wireless communication module 105 can be WIFI wireless communication module, have between WIFI wireless communication module and CPU 101
Electric connecting relation, and pass through the interaction of UART communication interface realization information between CPU 101.The wireless communication module 105
Also LORA wireless communication module can be used, there is electric connecting relation between LORA wireless communication module and CPU 101, and with
The interaction of information is realized between CPU 101 by UART communication interface.
As the further improvement of PLC device, the energization pins of wireless communication module 105 can place electric energy storage dress
It sets, when PLC device powers off suddenly, wireless communication module 105 can work on, in this way when external host computer and PLC device
When carrying out wireless communication, due to being able to detect that wireless module 105 works normally, and the unresponsive letter of CPU 101 in PLC device
Number, PLC device can be deduced and be currently at malfunction.
The apparatus for storing electrical energy that 105 energization pins of wireless communication module use can be super capacitor, be also possible to button
Battery；There is electrical connection between apparatus for storing electrical energy and wireless communication module 105, is electrically connected as on printing board PCB
Copper conductor or copper core connection cables.
As can be seen from the above embodiments beneficial effect existing for the application is:
First, the information exchange between PLC device of the invention and host computer can carry out through wireless communication, make
PLC device using more convenient, it is more flexible.
Second, wireless communication module is fused in PLC device and is integrally formed by the present invention, significantly reduces cost, and
Installation space occupies little space.
Third, wireless communication module power supply pin of the invention place apparatus for storing electrical energy, even if PLC device powers off, nothing
Line communication module may continue to work normally.
Above by drawings and examples, example is passed through to of the invention one although doing to technical solution of the present invention
A little specific embodiments are described in detail, but it should be appreciated by those skilled in the art example above is merely to carry out
Illustrate, the range being not intended to be limiting of the invention.Although the present invention is described in detail referring to the foregoing embodiments, right
For those skilled in the art, it can still modify to technical solution documented by previous embodiment or right
Part of technical characteristic is equivalently replaced.All within the spirits and principles of the present invention, it is made it is any modification, equally replace
It changes, improve, should all be included in the protection scope of the present invention.The scope of the present invention is defined by the appended claims.
Claims (5)
1. a kind of PLC device with wireless communication function characterized by comprising CPU, input module, output module, have
Line communication module and wireless communication module, wherein
The input module is coupled with the CPU phase, for input signal to be sent to the CPU；
The output module is coupled with the CPU phase, the output signal sent for receiving the CPU；
The CPU respectively with the input module, the output module, the wire communication module and the wireless communication
Module mutually couples, and the CPU receives the input signal that the input module is sent, and user program is executed, to the input
Signal is analyzed and is handled, and the control signal is sent to the output module by output control signal；The CPU and institute
It states wire communication module or information friendship is carried out by the electrical connection inside the PLC device with the wireless communication module
Mutually；
The wireless communication module is coupled with the CPU phase, for carrying out information exchange with the CPU；The CPU and the nothing
There is electrical connection between line communication module；The wireless communication module is WIFI wireless communication module or remote-wireless electricity LORA
Wireless communication module；Communication interface between the WIFI wireless communication module and the CPU is universal asynchronous receiving-transmitting transmitter
UART interface；Communication interface between the remote-wireless electricity LORA wireless communication module and the CPU is universal asynchronous receipts
Send out transmitter UART interface；The energization pins of the wireless communication module place apparatus for storing electrical energy；
The wire communication module is coupled with the CPU phase, for carrying out information exchange with the CPU.
2. the PLC device according to claim 1 with wireless communication function, which is characterized in that the electric energy storage dress
It is set to super capacitor or button cell.
3. the PLC device according to claim 1 with wireless communication function, which is characterized in that the electrical connection is
Copper conductor or copper core connection cables on printing board PCB.
4. the PLC device according to claim 1 with wireless communication function, which is characterized in that the electric energy storage dress
Setting has electrical connection between the wireless communication module.
5. the PLC device according to claim 4 with wireless communication function, which is characterized in that the electric energy storage dress
Setting the electrical connection between the wireless communication module is the copper conductor or copper core connection cables on printing board PCB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811571664.8A CN109634205A (en) | 2018-12-21 | 2018-12-21 | PLC device with wireless communication function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811571664.8A CN109634205A (en) | 2018-12-21 | 2018-12-21 | PLC device with wireless communication function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109634205A true CN109634205A (en) | 2019-04-16 |
Family
ID=66076441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811571664.8A Pending CN109634205A (en) | 2018-12-21 | 2018-12-21 | PLC device with wireless communication function |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231798A (en) * | 2019-05-21 | 2019-09-13 | 上海航天设备制造总厂有限公司 | The communication alternate acknowledge mechanism of human-computer interaction interface and programmable logic controller (PLC) |
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Application publication date: 20190416 |