CN206096883U - Programmable logic controler and have its controlgear - Google Patents
Programmable logic controler and have its controlgear Download PDFInfo
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- CN206096883U CN206096883U CN201620822638.8U CN201620822638U CN206096883U CN 206096883 U CN206096883 U CN 206096883U CN 201620822638 U CN201620822638 U CN 201620822638U CN 206096883 U CN206096883 U CN 206096883U
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- programmable logic
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Abstract
Programmable logic controler, it includes a central processing unit (12), little the control unit (14), luminescence unit (16) and light detecting unit (18). A central processing unit can export and read the PLC data. Little the control unit can follow the PLC data that a central processing unit acquireed above -mentioned output to export after can converting it into light pulse output signal, little the control unit can also acquire a light pulse input signal, and converts it into PLC data output to CPU. The luminescence unit can send the light pulse according to the smooth pulse output signal of receiving. Light detecting unit can the sensing light pulse to can convert it into exports little the control unit behind the above -mentioned light pulse input signal to. Above -mentioned programmable logic controler's data propagation velocity is fast, acquires the data in the programmable logic controler easily, can realize that a plurality of programmable logic controler download the condition of same data simultaneously, and can conveniently be applied to various occasions.
Description
Technical field
This utility model is related to a kind of PLC (programmable logic controller (PLC)), more particularly to a kind of achievable Li-Fi communications
The PLC of (visible light wireless communication).This utility model further relates to a kind of control device with above-mentioned PLC.
Background technology
PLC is widely used in various control devices, and existing PLC is from network or other equipment downloading data or receive data
According to when can run into following difficulty：As multiple PLC can not download same data simultaneously；PLC is connected with the signal of network or other equipment
Connect the impact and restriction for being easily subject to environment；It is difficult to read the data in PLC.
Utility model content
The purpose of this utility model is to provide a kind of PLC, and its data dissemination speed is fast, easily obtains the data in PLC, can
Multiple PLC are realized while downloading the situation of same data, and the PLC can conveniently be applied to various occasions.
Another purpose of the present utility model is to provide a kind of control device with above-mentioned PLC.
This utility model provides a kind of PLC, and which includes a CPU (CPU), a MCU (microcontroller list
Unit), a luminescence unit and an optical detecting unit.CPU can be exported and be read plc data.MCU can be from CPU acquisitions
Output plc data is stated, and is exported after a light pulse output signal can be converted into, MCU can also obtain a light arteries and veins
Input signal is rushed, and is converted into plc data and exported to CPU, read for CPU.Luminescence unit can be according to the light arteries and veins for receiving
Rush output signal and send light pulse.Optical detecting unit can sense light pulse, and can be converted into above-mentioned light pulse input
Export after signal to MCU.
Above-mentioned PLC can constitute radio communication with network and other equipment using Li-Fi technologies, due to the number using light pulse
According to circulation way, multiple PLC can be met while downloading the situation of same data, also be greatly improved data dissemination speed, be held
Data in PLC are obtained easily.Above-mentioned PLC can also be conveniently applied to various occasions, for example, be not suitable for line, Wi-Fi network
Where signal limitation system, above-mentioned PLC can be adopted.
In a kind of exemplary embodiment of PLC, luminescence unit is LED (light emitting diode).
In a kind of exemplary embodiment of PLC, optical detecting unit is photodiode.
In a kind of exemplary embodiment of PLC, also including a toggle switch, toggle switch can export a mould
Formula switching signal, micro-control unit can control luminescence unit and/or optical detecting unit work according to mode switching signal.Dial-up
Switch can help the pattern of switch mode, switching for example be down loading updating pattern, upload data pattern, data diagnosis pattern
Deng.
In a kind of exemplary embodiment of PLC, also including first driver element and second driver element.
Micro-control unit controls luminescence unit by the first driver element.Micro-control unit controls optical test list by the second driver element
Unit.
In a kind of exemplary embodiment of PLC, also including one can signal be connected to the temperature sensor of MCU.
For monitoring the temperature of PLC, it is ensured that PLC normal works.
In a kind of exemplary embodiment of PLC, also including one can signal be connected to the timer of MCU, be used for
PLC internal clockings.
In a kind of exemplary embodiment of PLC, MCU and CPU can be connected by parallel interface signal.
In a kind of exemplary embodiment of PLC, MCU and CPU can pass through SPI interface or UART interface signal connects
Connect.
This utility model additionally provides a kind of control device, and which includes an above-mentioned PLC.
Hereafter by the way of clearly understandable, preferred embodiment is described with reference to the drawings, to PLC and the control device with which
Above-mentioned characteristic, technical characteristic, advantage and its implementation be further described.
Description of the drawings
The following drawings only does schematic illustration and explanation to this utility model, does not limit scope of the present utility model.
Fig. 1 is to illustrate a kind of electrical block diagram of exemplary embodiment of PLC.
Fig. 2 is to illustrate a kind of surface structure schematic diagram of exemplary embodiment of PLC.
Fig. 3 is to illustrate the electrical block diagram of another kind of exemplary embodiment of PLC.
Label declaration
11 timers
12 CPU
13 temperature sensors
14 MCU
15 first driver elements
16 luminescence units
17 second driver elements
18 optical detecting units
19 toggle switch
The light pulse of 20 optical detecting units sensing
S1 light pulse output signals
S2 light pulse input signals
S3 mode switching signals.
Specific embodiment
In order to be more clearly understood to the technical characteristic of utility model, purpose and effect, now control illustrates this
The specific embodiment of utility model, in the various figures identical label represent that structure is identical or structure is similar but function identical portion
Part.
Herein, " schematic " expression " serving as example, example or explanation ", will should not be described herein as " showing
Any diagram of meaning property ", embodiment are construed to a kind of preferred or more advantageous technical scheme.
To make simplified form, the part related to this utility model in each figure, is only schematically show, they are not
Which is represented as the practical structures of product.In addition, to readily appreciate simplified form, there is in some figures identical structure or work(
The part of energy, only symbolically depicts one of those, or has only marked one of those.
Herein, " first ", " second " etc. are only used for mutual differentiation, rather than the significance level and order for representing them
Deng.
Fig. 1 is to illustrate a kind of electrical block diagram of exemplary embodiment of PLC.Fig. 2 is to illustrate the one of PLC
Plant the surface structure schematic diagram of exemplary embodiment.As shown in figure 1, PLC include a CPU12, MCU14, one send out
Light unit 16 and an optical detecting unit (Photo Detector) 18.Wherein, CPU12 can export and read plc data,
Plc data includes：Parameter that control command, PLC parameters, other equipment are uploaded etc..MCU14 can be obtained from CPU12 outputs
Plc data, and the plc data can be converted to output after corresponding light pulse output signal S1.Luminescence unit 16 (can be found in
Light pulse output signal S1 of MCU14 outputs Fig. 2) can be received for example with LED, and is sent out according to light pulse output signal S1
Go out specific light pulse, the specific light pulse that luminescence unit 16 sends is corresponding with the plc data that above-mentioned CPU12 is exported, should
Light pulse can be received and converted to corresponding data by other equipment, to realize that Li-Fi communicates, PLC is sent by Li-Fi
Information, such as control command, PLC parameters etc..Although in above-mentioned embodiment luminescence unit 16 choose for LED, according to setting
Meter needs difference, luminescence unit adopt other devices, such as generating laser.
Above-mentioned PLC is except being sent in addition to information by Li-Fi and can also such as read other equipment ginseng by Li-Fi receive informations
Count, downloading data etc., the function of receive information is realized by the optical detecting unit 18 (can be found in Fig. 2) of PLC, optical detecting unit 18
Photodiode can be such as selected, which can sense the light pulse 20 that other equipment sends, the light for for example sending from another PLC
Pulse, or the light pulse sent from PLC expansion equipments.Optical detecting unit 18 can be converted according to the light pulse 20 of sensing
Export to MCU14 for corresponding light pulse input signal S2, MCU14 can receiving light pulse input signal S2, and should
Light pulse input signal S2 is converted to the plc data that CPU12 can read and exports to CPU12.
Above-mentioned PLC can constitute radio communication with network and other equipment using Li-Fi technologies, due to the number using light pulse
According to circulation way, multiple PLC can be met while downloading the situation of same data, also be greatly improved data dissemination speed, be held
Data in PLC are obtained easily.Above-mentioned PLC can also be conveniently applied to various occasions, for example, be not suitable for line, Wi-Fi network
Where signal limitation system, above-mentioned PLC can be adopted.
Fig. 3 is to illustrate the electrical block diagram of another kind of exemplary embodiment of PLC.As shown in figure 3, PLC is also
Including a toggle switch (DIP Switch) 19, toggle switch 19 can export a mode switching signal S3, and MCU14 can
Luminescence unit 16 is controlled according to mode switching signal S3 and/or optical detecting unit 18 works.The pattern for wherein switching for example can be with
It is down loading updating pattern, uploads data pattern, data diagnosis pattern etc., according to different patterns, MCU14 control luminescence unit 16
And/or optical detecting unit 18 works.
In the embodiment shown in Fig. 3, PLC may also include first driver element 15 and second driver element
17.Micro-control unit 14 can control luminescence unit 16 by the first driver element 15, can control light by the second driver element 17
Inspection unit 18.
In the embodiment shown in Fig. 3, PLC may also include the temperature sensor 13 that a signal is connected to MCU14, temperature
Degree sensor 13 can monitor the temperature inside PLC, the temperature of such as CPU, it is ensured that PLC normal works.
In the embodiment shown in Fig. 3, PLC may also include the timer 11 that a signal is connected to the MCU14, use
In PLC internal clockings.
In addition, MCU14 and CPU12 can be connected by multiple interfaces mode, such as MCU14 and CPU12 can be by parallel
(Parallel) interface signal connection, MCU14 and CPU12 can also pass through SPI interface or UART interface signal connects.
This utility model additionally provides a kind of control device, and which includes an above-mentioned PLC.The control device is, for example, to carry
The HMI device of PLC, DCS system, instrument etc..
It should be understood that, although this specification is described according to each embodiment, but not each embodiment only includes one
Individual independent technical scheme, this narrating mode of description is only that those skilled in the art will should say for clarity
Bright book as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, forming those skilled in the art can be with
The other embodiment of understanding.
The a series of detailed description of those listed above is only for the concrete of possible embodiments of the present utility model
Illustrate, they are simultaneously not used to limit protection domain of the present utility model, it is all without departing from this utility model skill spirit made etc.
Combination, segmentation or the repetition of effect embodiment or change, such as feature, should be included within protection domain of the present utility model.
Claims (10)
1. programmable logic controller (PLC), it is characterised in which includes：
One CPU (12), which can export and read plc data；
One micro-control unit (14), which can obtain the output plc data from the CPU (12), and can
It is converted into a light pulse output signal (S1) to export afterwards, the micro-control unit (14) can also obtain a light pulse
Input signal (S2), and be converted into plc data and export to the CPU (12)；
One luminescence unit (16), which can send light pulse according to the light pulse output signal (S1) for receiving；With
One optical detecting unit (18), which can sense light pulse, and can be converted into the light pulse input signal
(S2) export afterwards to the micro-control unit (14).
2. programmable logic controller (PLC) as claimed in claim 1, it is characterised in that the luminescence unit (16) is light-emitting diodes
Pipe.
3. programmable logic controller (PLC) as claimed in claim 1, it is characterised in that the optical detecting unit (18) is photoelectricity two
Pole pipe.
4. programmable logic controller (PLC) as claimed in claim 1, it is characterised in that also including a toggle switch (19), institute
State toggle switch (19) and a mode switching signal can be exported, the micro-control unit (14) can be according to the pattern switching
Signal controls the luminescence unit (16) and/or the optical detecting unit (18) work.
5. programmable logic controller (PLC) as claimed in claim 4, it is characterised in that also include：
One the first driver element (15), the micro-control unit (14) are sent out by first driver element (15) control is described
Light unit (16)；With
One the second driver element (17), the micro-control unit (14) control light detection by second driver element (17)
Unit (18).
6. programmable logic controller (PLC) as claimed in claim 1, it is characterised in that also including one can signal be connected to institute
State the temperature sensor (13) of micro-control unit (14).
7. programmable logic controller (PLC) as claimed in claim 1, it is characterised in that also including one can signal be connected to institute
State the timer (11) of micro-control unit (14).
8. programmable logic controller (PLC) as claimed in claim 1, it is characterised in that the micro-control unit (14) and it is described in
Central Processing Unit (12) can be connected by parallel interface signal.
9. programmable logic controller (PLC) as claimed in claim 1, it is characterised in that the micro-control unit (14) and it is described in
Central Processing Unit (12) can pass through SPI interface or UART interface signal connects.
10. control device, it is characterised in which includes a FPGA control as claimed in any one of claims 1-9 wherein
Device processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620822638.8U CN206096883U (en) | 2016-07-29 | 2016-07-29 | Programmable logic controler and have its controlgear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620822638.8U CN206096883U (en) | 2016-07-29 | 2016-07-29 | Programmable logic controler and have its controlgear |
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| Publication Number | Publication Date |
|---|---|
| CN206096883U true CN206096883U (en) | 2017-04-12 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620822638.8U Active CN206096883U (en) | 2016-07-29 | 2016-07-29 | Programmable logic controler and have its controlgear |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113138583A (en) * | 2020-01-20 | 2021-07-20 | 耐莱斯美国股份有限公司 | Self-learning device for connecting a programmable logic controller to a field device |
-
2016
- 2016-07-29 CN CN201620822638.8U patent/CN206096883U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113138583A (en) * | 2020-01-20 | 2021-07-20 | 耐莱斯美国股份有限公司 | Self-learning device for connecting a programmable logic controller to a field device |
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