CN2847715Y - On-site bus protocol converter - Google Patents
On-site bus protocol converter Download PDFInfo
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- CN2847715Y CN2847715Y CN 200520006444 CN200520006444U CN2847715Y CN 2847715 Y CN2847715 Y CN 2847715Y CN 200520006444 CN200520006444 CN 200520006444 CN 200520006444 U CN200520006444 U CN 200520006444U CN 2847715 Y CN2847715 Y CN 2847715Y
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- China
- Prior art keywords
- bus interface
- module
- control module
- bus
- modbus
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Abstract
The utility model relates to a field bus protocol converter which belongs to a field bus device for the communication and interconnection between a CAN bus and a Modbus bus. The utility model comprises a CAN bus interface, a core control module, a communication speed rate setting module, a converter node number setting module and a Modbus bus interface. The TXD and the RXD of the CAN bus interface are correspondingly connected with the TXD and the RXD of a microprocessor arranged in the core control module. DIP switches of the communication speed rate setting module and the converter node number setting module are connected with P<1.2>, P<1.3>, P<1.4>, P<1.5>, P<0.7>, P<0.6>, P<0.5>, P<0.4>, P<0.3>, P<0.2>, P<0.1>, P<0.0>, P<3.4>, P<3.5>, P<3.6>, P<3.7>, P<2.0>, P<2.0>, P<2.2>, P<2.3>, P<2.4>, P<2.5>, P<2.6> and P<2.7>of a microprocessor in the core control module; P<3.0>, P<3.1>, P<3.2> and P<3.3> of the Modbus bus interface are correspondingly connected with P<3.0>, P<3.1>, P<3.2> and P<3.3> of the microprocessor in the core control module; power supply is connected, and an earthing point is earthed.
Description
One, technical field:
The utility model relates to a kind of field bus protocol transducer, belonging to communication and using field bus device, is suitable for communicate by letter with the Modbus bus interface product usefulness of interconnected conversion of the interface product of CAN bus.
Two, background technology:
At present, field bus protocol is numerous, CAN belongs to the bus type serial communication network, it is low that it has a cost, reliability height, the strong characteristics of real-time flexibility, the Modbus agreement is the serial communication protocol fairly simple, that cost is low, but can not directly carry out interconnected between CAN bus interface product and the Modbus bus interface product, so far, never there is the field bus protocol of employing transducer to realize that CAN bus interface product is interconnected with communicating by letter of Modbus bus interface product.
Three, summary of the invention:
The purpose of this utility model is to overcome between existing CAN bus interface product and the Modbus bus interface product can not directly carry out interconnected weak point, thereby a kind of field bus protocol transducer is provided, and it can realize that between double bus CAN bus interface product is interconnected with communicating by letter of Modbus bus interface product.It is simple in structure, and cost is low, and transfer of data is reliable, and real-time communication is strong, and market prospects are wide.
The purpose of this utility model realizes by following approach:
The utility model includes that CAN bus interface, kernel control module, traffic rate are provided with module, the transducer node number is provided with module and several parts of Modbus bus interface, after the corresponding connection of TXD, RXD with TXD, the RXD of CAN transceiver and the set microprocessor of kernel control module, again traffic rate is provided with module and transducer node number be provided with the set plucking number sign switch of module respectively with the P of the set microprocessor of kernel control module
1.2, P
1.3, P
1.4, P
1.5, P
0.7, P
0.6, P
0.5, P
0.4, P
0.3, P
0.2, P
0.1, P
0.0, P
3.4, P
3.5, P
3.6, P
3.7, P
2.0, P
2.1, P
2.2, P
2.3, P
2.4, P
2.5, P
2.6, P
2.7Connect, and with the P of Modbus bus interface
3.0, P
3.1, P
3.2, P
3.3P with the set microprocessor of kernel control module
3.0, P
3.1, P
3.2, P
3.3The corresponding connection, connect corresponding power, earth point ground connection.
The utility model contrast prior art has following advantage:
1, the utility model is simple in structure, cost is low;
2, the utility model can realize that the CAN bus is interconnected with communicating by letter of Modbus bus interface product;
3, the utility model transfer of data is reliable, and real-time communication is strong.
Four, description of drawings:
Fig. 1 is the circuit structure block diagram of the utility model embodiment,
Wherein: the 1-CAN bus; The 2-CAN bus interface; 3-core control mould; The 4-Modbus bus interface; The 5-Modbus bus; The 6-traffic rate is provided with module; 7-transducer node number is provided with module.
Fig. 2 is the circuit diagram of the utility model Embodiment C AN bus interface 2,
Wherein: the 8-connector; 9-CAN transceiver, transceiver are 82C250.
Fig. 3 is the circuit diagram of the utility model embodiment Modbus bus interface 4,
Wherein: the 11-connector; 12-RS-485 transceiver, transceiver are MAX487.
Fig. 4 is the circuit diagram that the utility model embodiment traffic rate is provided with module 6,
Wherein: SW
1--plucking number sign switch; SW
2-plucking number sign switch; SW
3-plucking number sign switch.
Fig. 5 is provided with the circuit diagram of module 7 for the utility model embodiment transducer node number.
Wherein: SW
4-plucking number sign switch; SW
5-plucking number sign switch; SW
6-plucking number sign switch.
Fig. 6 is the circuit diagram of the utility model embodiment kernel control module 3.
Wherein: 10-microprocessor, microprocessor are 87C591.
Five, embodiment:
The utility model describes in detail below in conjunction with accompanying drawing embodiment:
The utility model embodiment includes that CAN bus interface 2, kernel control module 3, traffic rate are provided with module 6, the transducer node number is provided with module 7 and Modbus bus interface more than 4 parts, after the corresponding connection of TXD, RXD with TXD, the RXD of CAN bus interface 2 and kernel control module 3 set microprocessors 10, again traffic rate is provided with module 6 and transducer node the set plucking number sign switch SW of module 7 is set
1, SW
2, SW
3, SW
4, SW
5, SW
6In 3-4,3-3,3-2,3-1,2-1,2-2,2-3,2-4,1-4,1-3,1-2,1-1,4-4,4-3,4-2,4-1,5-1,5-2,5-3,5-4,6-4,6-3,6-2,6-1 respectively with the P of kernel control module 3 set microprocessors 10
1.2, P
1.3, P
1.4, P
1.5, P
0.7, P
0.6, P
0.5, P
0.4, P
0.3, P
0.2, P
0.1, P
0.0, P
3.4, P
3.5, P
3.6, P
3.7, P
2.0, P
2.1, P
2.2, P
2.3, P
2.4, P
2.5, P
2.6, P
2.7Connect, and with the P of Modbus bus interface 4
3.0, P
3.1, P
3.2, P
3.3P with the set microprocessor 10 of kernel control module 3
3.0, P
3.1, P
3.2, P
3.3The corresponding connection, connect corresponding power, earth point ground connection.
During use, connector 8 patched with the CAN bus be connected, connector 11 patches with the Modbus bus and is connected, CAN, Modbus traffic rate that traffic rate is provided with 6 pairs of protocol converters of module are provided with, and the Modbus network node number that the transducer node number is provided with 7 pairs of protocol converters of module is provided with.The CAN data of kernel control module 3 from the CAN bus interface convert the Modbus protocol data to after treatment, through the serial ports of microprocessor 14, insert Modbus bus 5 by the Modbus bus interface, vice versa.
Claims (1)
- A kind of fieldbus transducer, it is characterized in that it includes that CAN bus interface (2), kernel control module (3), traffic rate are provided with module (6), the transducer node number is provided with module (7) and several parts of Modbus bus interface (4), after the corresponding connection of TXD, RXD with TXD, the RXD of CAN bus interface (2) and the set microprocessor of kernel control module (3) (10), again traffic rate is provided with module (6) and transducer node number be provided with the set plucking number sign switch of module (7) respectively with the P of the set microprocessor (10) of kernel control module (3) 1.2, P 1.3, P 1.4, P 1.5, P 0.7, P 0.6, P 0.5, P 0.4, P 0.3, P 0.2, P 0.1, P 0.0, P 3.4, P 3.5, P 3.6, P 3.7, P 2.0, P 2.1, P 2.2, P 2.3, P 2.4, P 2.5, P 2.6, P 2.7Connect, and with the P of Modbu s bus interface (4) 3.0, P 3.1, P 3.2, P 3.3P with the set microprocessor (10) of kernel control module (3) 3.0, P 3.1, P 3.2, P 3.3The corresponding connection, connect corresponding power, earth point ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520006444 CN2847715Y (en) | 2005-12-02 | 2005-12-02 | On-site bus protocol converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520006444 CN2847715Y (en) | 2005-12-02 | 2005-12-02 | On-site bus protocol converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2847715Y true CN2847715Y (en) | 2006-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520006444 Expired - Fee Related CN2847715Y (en) | 2005-12-02 | 2005-12-02 | On-site bus protocol converter |
Country Status (1)
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| CN (1) | CN2847715Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908990A (en) * | 2010-06-17 | 2010-12-08 | 中国北车股份有限公司大连电力牵引研发中心 | ARM7-based MVB gateway and working method thereof |
| CN101729572B (en) * | 2009-11-20 | 2012-09-05 | 上海交通大学 | Protocol conversion device between MODBUS industrial field bus and wireless ZIGBEE and method thereof |
| CN102857411A (en) * | 2011-06-27 | 2013-01-02 | Ls产电株式会社 | Communication method of gateway device supporting mutual communication of CAN and Modbus and gateway device using the same |
| CN103200078A (en) * | 2012-01-06 | 2013-07-10 | 珠海格力电器股份有限公司 | Gateway, communication network and data processing method |
| CN105893747A (en) * | 2016-03-30 | 2016-08-24 | 辽宁开普医疗系统有限公司 | Medical X-ray product CAN bus interconnection extension device |
-
2005
- 2005-12-02 CN CN 200520006444 patent/CN2847715Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101729572B (en) * | 2009-11-20 | 2012-09-05 | 上海交通大学 | Protocol conversion device between MODBUS industrial field bus and wireless ZIGBEE and method thereof |
| CN101908990A (en) * | 2010-06-17 | 2010-12-08 | 中国北车股份有限公司大连电力牵引研发中心 | ARM7-based MVB gateway and working method thereof |
| CN102857411A (en) * | 2011-06-27 | 2013-01-02 | Ls产电株式会社 | Communication method of gateway device supporting mutual communication of CAN and Modbus and gateway device using the same |
| EP2541846A1 (en) * | 2011-06-27 | 2013-01-02 | LSIS Co., Ltd. | Communication method of gateway device supporting CAN - and Modbus protocol conversion and gateway device using the same |
| CN103200078A (en) * | 2012-01-06 | 2013-07-10 | 珠海格力电器股份有限公司 | Gateway, communication network and data processing method |
| CN103200078B (en) * | 2012-01-06 | 2016-08-24 | 珠海格力电器股份有限公司 | gateway, communication network and data processing method |
| CN105893747A (en) * | 2016-03-30 | 2016-08-24 | 辽宁开普医疗系统有限公司 | Medical X-ray product CAN bus interconnection extension device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |