CN205247381U - Absolute value servo driver RS485 communication circuit - Google Patents
Absolute value servo driver RS485 communication circuit Download PDFInfo
- Publication number
- CN205247381U CN205247381U CN201521024842.7U CN201521024842U CN205247381U CN 205247381 U CN205247381 U CN 205247381U CN 201521024842 U CN201521024842 U CN 201521024842U CN 205247381 U CN205247381 U CN 205247381U
- Authority
- CN
- China
- Prior art keywords
- adm485ar
- triode
- resistance
- absolute value
- circuit
- 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
Links
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses an absolute value servo driver RS485 communication circuit, supply volt circuit and communication chip ADM485AR including the triode, the triode supplies the volt circuit to include triode T, resistance R130 and resistance R132, and triode T is 9014 triodes, and absolute value servo driver DSP data signal processing chip is connected with communication chip ADM485AR, is provided with an electric capacity C between ADM485AR's VCC and the GND. The utility model discloses a data receive the automatic switching circuit of data transmission circuit, simplified the complexity of traditional RS485 communication circuit, also solved owing to adopt software to provide that data are received and during the data transmission signal the comparatively complicated technical problem who makes mistakes easily of hardware, software, this circuit furthest in the aspect of real -time, speed has satisfied RS485 communication technology's in the MODEBUS agreement requirement.
Description
Technical field
The utility model relates to a kind of electronic technology communication technique field, is specifically related to a kind of absolute value servo-driver RS485 communicating circuit.
Background technology
The world today, industrially developed country pays much attention to industrial automation, competitively develop electromechanical integration, high-precision, efficient, high automation sophisticated equipment, particularly along with the high speed development of microelectronics, computer technology, mechanics of communication, power technology, sensing technology, servo techniques, Numeric Control Technology, become the focus that manufacturer of various countries competitively shows advanced technology, contention user, expands market after being automatically controlled at the eighties in 20th century.
Encoder techniques in Servo Drive Technology's adopts relative value encoder techniques and absolute value encoder technology at present, along with the high speed development of servo techniques, the use of absolute value encoder in servo-driver is more and more, and also more and more higher with the mechanics of communication requirement of upper microcomputer, what conventionally adopt is the RS485 mechanics of communication in MODEBUS agreement.
Signal input and the signal output apparatus of conventional RS485 communication interface circuit are that respectively independently software section also will judge input signal or output signal, and hardware circuit part and software section are all comparatively complicated, when data transmit, easily make mistakes.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, adopt a kind of automatic switching circuit of data receiver/data transmit circuit, in order to simplify the data receiver of conventional RS485 communicating circuit and the complexity that data transmit circuit must be separated, solve owing to adopting software that data receiver and data transmitted signal are provided, the comparatively complicated problem of easily makeing mistakes of hardware, software, aspect real-time, speed, meet to greatest extent MODEBUS agreement simultaneously in the requirement of RS485 mechanics of communication.
The purpose of this utility model is achieved through the following technical solutions: a kind of absolute value servo-driver RS485 communicating circuit, it comprises that triode is for volt circuit and communicating circuit chip ADM485AR, triode comprises triode T for volt circuit, resistance R 130 and resistance R 132, the colelctor electrode of triode T is connected with 3.3V voltage by resistance R 130, the transmitting collection ground connection of triode T, the base stage of triode T is connected with the DI interface of communicating circuit chip ADM485AR by resistance R 132, the DI interface of ADM485AR connects the TXD1 port of absolute value servo-driver DSP data-signal process chip simultaneously, the RO interface of ADM485AR connects respectively RXD1 port and the 3.3V voltage of absolute value servo-driver DSP data-signal process chip, wherein between the RO interface of 3.3V voltage and ADM485AR, be provided with resistance R 131, the DE end of ADM485AR and/RE end is all connected on the common node of resistance 130 and triode T colelctor electrode, the A port of ADM485AR is connected with RS485+ signal end by R133, ADM485AR /B port is connected with RS485-signal end by R134, the VCC termination 3.3V voltage of ADM485AR, the GND end ground connection of ADM485AR.
Preferably, described triode T is 9014 triodes; Between the VCC of described ADM485AR and GND, be provided with a capacitor C.
The beneficial effects of the utility model are:
1), adopted the automatic switching circuit of data receiver/data transmit circuit, simplify the complexity of traditional RS485 communicating circuit, also solved while providing data receiver and data transmitted signal due to employing software the comparatively complicated technical problem of easily makeing mistakes of hardware, software;
2), this circuit aspect real-time, speed, met to greatest extent MODEBUS agreement in the requirement of RS485 mechanics of communication;
3), this circuit have advantages of simple in structure, volume is little, cost is low and easy realization.
Brief description of the drawings
Fig. 1 is electrical block diagram of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, a kind of absolute value servo-driver RS485 communicating circuit, it is characterized in that: it comprises that triode is for volt circuit and communicating circuit chip ADM485AR, triode comprises triode T for volt circuit, resistance R 130 and resistance R 132, wherein the resistance of resistance R 130 and resistance R 132 is 10k Ω, the colelctor electrode of triode T is connected with 3.3V voltage by resistance R 130, the transmitting collection ground connection of triode T, the base stage of triode T is connected with the DI interface of communicating circuit chip ADM485AR by resistance R 132, the DI interface of ADM485AR connects the TXD1 port of absolute value servo-driver DSP data-signal process chip simultaneously, the RO interface of ADM485AR connects respectively RXD1 port and the 3.3V voltage of absolute value servo-driver DSP data-signal process chip, wherein between the RO interface of 3.3V voltage and ADM485AR, be provided with resistance R 131, the resistance of R131 is 22k Ω, the DE end of ADM485AR and/RE end is all connected on the common node of resistance 130 and triode T colelctor electrode, the A port of ADM485AR is connected with RS485+ signal end by R133, ADM485AR /B port is connected with RS485-signal end by R134, the resistance of above-mentioned resistance R 133 and resistance R 134 is 10 Ω, the VCC termination 3.3V voltage of ADM485AR, the GND end ground connection of ADM485AR.
Wherein, described triode T is 9014 triodes, is provided with a capacitor C between the VCC of described ADM485AR and GND, and the capacitance of C is 0.1uF.
Operation principle of the present utility model is: while sending data, TXD1 end signal causes triode T conducting, now chip U1(is ADM485AR chip) DE and/RE end is low level, data-signal from the DI end of U1 flow to A and/B end, thereby reach the function that data send; Receive when data, TXD1 end signal causes triode T cut-off, now the DE of chip U1 and/RE hold high level, data-signal from the A of U1 and/B end flows to RO and holds, thereby realize the function of data receiver. Realize thus the automatic conversion that absolute value servo-driver communication data reception/data send.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; it should be pointed out that all any amendments of doing within spirit of the present utility model and principle, be equal to replacement and improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. an absolute value servo-driver RS485 communicating circuit, it is characterized in that: it comprises that triode is for volt circuit and communicating circuit chip ADM485AR, triode comprises triode T for volt circuit, resistance R 130 and resistance R 132, the colelctor electrode of triode T is connected with 3.3V voltage by resistance R 130, the transmitting collection ground connection of triode T, the base stage of triode T is connected with the DI interface of communicating circuit chip ADM485AR by resistance R 132, the DI interface of ADM485AR connects the TXD1 port of absolute value servo-driver DSP data-signal process chip simultaneously, the RO interface of ADM485AR connects respectively RXD1 port and the 3.3V voltage of absolute value servo-driver DSP data-signal process chip, wherein between the RO interface of 3.3V voltage and ADM485AR, be provided with resistance R 131, the DE end of ADM485AR and/RE end is all connected on the common node of resistance 130 and triode T colelctor electrode, the A port of ADM485AR is connected with RS485+ signal end by R133, ADM485AR /B port is connected with RS485-signal end by R134, the VCC termination 3.3V voltage of ADM485AR, the GND end ground connection of ADM485AR.
2. absolute value servo-driver RS485 communicating circuit according to claim 1, is characterized in that: described triode T is 9014 triodes.
3. absolute value servo-driver RS485 communicating circuit according to claim 1, is characterized in that: between the VCC port of described ADM485AR and GND port, be provided with a capacitor C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521024842.7U CN205247381U (en) | 2015-12-11 | 2015-12-11 | Absolute value servo driver RS485 communication circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521024842.7U CN205247381U (en) | 2015-12-11 | 2015-12-11 | Absolute value servo driver RS485 communication circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205247381U true CN205247381U (en) | 2016-05-18 |
Family
ID=55946463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521024842.7U Expired - Fee Related CN205247381U (en) | 2015-12-11 | 2015-12-11 | Absolute value servo driver RS485 communication circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205247381U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006697A (en) * | 2019-10-25 | 2020-04-14 | 珠海格力电器股份有限公司 | Position data processing and transmission control system, method and application of encoder |
-
2015
- 2015-12-11 CN CN201521024842.7U patent/CN205247381U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006697A (en) * | 2019-10-25 | 2020-04-14 | 珠海格力电器股份有限公司 | Position data processing and transmission control system, method and application of encoder |
| CN111006697B (en) * | 2019-10-25 | 2020-11-24 | 珠海格力电器股份有限公司 | Position data processing and transmission control system, method and application of encoder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203982576U (en) | M-BUS slave telecommunication circuit | |
| CN101310314B (en) | Control/monitor signal transmission system | |
| CN104506516A (en) | Gateway for conversion between Modbus RTU/ASCII (remote terminal unit/American standard code for information interchange) communication protocol and Modbus TCP (transmission control protocol) communication protocol and implementation method for gateway | |
| CN104678809A (en) | Universal sensor control equipment and system | |
| CN210348482U (en) | RS485 interface and RS232 interface automatic switching circuit and electronic equipment | |
| CN205247381U (en) | Absolute value servo driver RS485 communication circuit | |
| CN208905026U (en) | Versatile interface protocol conversion module based on LORA network | |
| CN103926862A (en) | Micro-power-consumption M-bus slave end circuit for intelligent instrument communication and communication method thereof | |
| CN203149559U (en) | Multi-slave-structure MBUS host machine device | |
| CN101493685A (en) | Wireless hand-operated wheel | |
| CN101470945A (en) | Mobile phone with infrared remote control function and its remote control method | |
| CN105160862A (en) | M-BUS (METER-BUS) slave communication circuit | |
| CN205247105U (en) | RS485 communication circuit that interference killing feature is strong | |
| CN204256738U (en) | Data line of S7-200PLC and I/A Series | |
| CN112202573A (en) | Two-wire system power supply and networking communication system | |
| CN204423022U (en) | Can general purpose transducer opertaing device and system | |
| CN203838509U (en) | Micro-power consumption M-bus slave computer end circuit for intelligent instrument communication | |
| CN202602696U (en) | Universal Internet of things gateway | |
| CN202854638U (en) | Electronic wireless handwheel | |
| CN201623714U (en) | Two-way communication circuit | |
| CN206249048U (en) | A kind of intelligent DTU equipment for being applied to Internet of Things field | |
| CN204206217U (en) | A kind of Intelligent communication module of PROFIBUS-DP interface | |
| CN205388688U (en) | Analog signal board of sampling based on synchronous serial bus technique | |
| CN104239263A (en) | Embedded type data collection terminal | |
| CN203241454U (en) | Interface converter for electric meters |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20161211 |