CN203813781U - USB and PLC communication converter - Google Patents
USB and PLC communication converter Download PDFInfo
- Publication number
- CN203813781U CN203813781U CN201420090400.1U CN201420090400U CN203813781U CN 203813781 U CN203813781 U CN 203813781U CN 201420090400 U CN201420090400 U CN 201420090400U CN 203813781 U CN203813781 U CN 203813781U
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- CN
- China
- Prior art keywords
- usb
- plc
- communication module
- communication
- plc communication
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a USB and PLC communication converter. The USB and PLC communication converter comprises a USB communication module and a PLC communication module; a UART communication interconnection is adopted between the USB communication module and the PLC communication module, one end of the USB communication module is connected with a USB communication interface, and one end of the PLC communication module is connected with an electric power line interface through a signal amplification coupling circuit. One end of the USB and PLC communication converter is connected with the electric power line interface, and the other end of the USB and PLC communication converter is connected with the USB interface, so intercommunication and interconnection of PLC and USB communication can be achieved.
Description
Technical field
The utility model relates to a kind of communication converter, refers in particular to a kind of USB and the plc communication transducer that can realize the interconnection between PLC and usb communication.
Background technology
PLC(power line carrier communication) be using existing low-voltage power gauze as channel, by carrier transmission analog or digital signal, there is the features such as the low and working service of extra wiring, cost is convenient that do not need.In recent years, PLC obtains a wide range of applications in all kinds of control system as a kind of communication technique, as power carrier is checked meter etc. in engineering.When PLC applies in all kinds of supervisory control systems, mostly to realize and host computer (PC or industrial computer etc.) between exchanges data, therefore in the application of PLC control system, also essential as the data communication conversion equipment between system and host computer, in existing product, this class conversion equipment is most for serial ports turns PLC type, for the PC that only has USB interface class, obviously cannot meet well its application.
Utility model content
The utility model object is that a kind of USB and the plc communication transducer that can realize the interconnection between PLC and usb communication is provided in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of USB and plc communication transducer, comprise usb communication module and plc communication module; Described usb communication module adopts UART to communicate by letter interconnected with plc communication intermodule; Described usb communication module one end is connected in usb communication interface; Described plc communication module one end is connected in power line interface by signal amplification coupling circuit.
Preferably, described usb communication module is selected UI021 chip.
Preferably, described plc communication module is selected HLPLCS520 chip.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
USB described in the utility model is connected with power line interface with one end of plc communication transducer, and the other end is connected with USB interface, can realize the interconnection between PLC and usb communication.
Brief description of the drawings
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
Accompanying drawing 1 is the fundamental diagram under the application state of USB described in the utility model and plc communication transducer;
Wherein: 1, USB and plc communication transducer; 2, power line interface; 3, USB interface; 11, usb communication module; 12, plc communication module.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Accompanying drawing 1 is USB-PLC communication converter 1 described in the utility model, comprises usb communication module 11 and plc communication module 12; Between described usb communication module 11 and plc communication module 12, adopt UART to communicate by letter interconnected; Described usb communication module 11 one end are connected in usb communication interface; Described plc communication module 12 one end are connected in power line interface by signal amplification coupling circuit.
Described usb communication module 11 is UI021 chip.
Described plc communication module 12 is HLPLCS520 chip
Operation principle of the present utility model is:
1) data being converted to from PLC to USB: plc communication module 12 converts the plc communication packet on power line to serial communication packet and usb communication module 11 communicates, and usb communication module 11 converts serial communication packet to usb communication data again;
2) data being converted to from USB to PLC: usb communication module 11 converts the usb communication packet in USB interface to serial communication packet and plc communication module 12 communicates, and plc communication module 12 converts serial communication packet to plc communication data again and carries out data communication.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
USB described in the utility model is connected with power line interface 2 with one end of plc communication transducer, and the other end is connected with USB interface, can realize the interconnection between PLC and usb communication.
Below be only concrete exemplary applications of the present utility model, protection range of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, within all dropping on the utility model rights protection scope.
Claims (3)
1. USB and a plc communication transducer, is characterized in that: comprise usb communication module and plc communication module; Described usb communication module adopts UART to communicate by letter interconnected with plc communication intermodule; Described usb communication module one end is connected in usb communication interface; Described plc communication module one end is connected in power line interface by signal amplification coupling circuit.
2. USB according to claim 1 and plc communication transducer, is characterized in that: described usb communication module is selected UI021 chip.
3. USB according to claim 1 and plc communication transducer, is characterized in that: described plc communication module is selected HLPLCS520 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090400.1U CN203813781U (en) | 2014-02-28 | 2014-02-28 | USB and PLC communication converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090400.1U CN203813781U (en) | 2014-02-28 | 2014-02-28 | USB and PLC communication converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203813781U true CN203813781U (en) | 2014-09-03 |
Family
ID=51452476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420090400.1U Expired - Fee Related CN203813781U (en) | 2014-02-28 | 2014-02-28 | USB and PLC communication converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203813781U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103856244A (en) * | 2014-02-28 | 2014-06-11 | 苏州市职业大学 | Converter for communication between USB and PLC |
-
2014
- 2014-02-28 CN CN201420090400.1U patent/CN203813781U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103856244A (en) * | 2014-02-28 | 2014-06-11 | 苏州市职业大学 | Converter for communication between USB and PLC |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20150228 |
|
| EXPY | Termination of patent right or utility model |