CN201689338U - BACnet field controller with Modbus communication interface - Google Patents
BACnet field controller with Modbus communication interface Download PDFInfo
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- CN201689338U CN201689338U CN2010202006654U CN201020200665U CN201689338U CN 201689338 U CN201689338 U CN 201689338U CN 2010202006654 U CN2010202006654 U CN 2010202006654U CN 201020200665 U CN201020200665 U CN 201020200665U CN 201689338 U CN201689338 U CN 201689338U
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- bacnet
- communication interface
- modbus
- field controller
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model relates to a BACnet field controller with a Modbus communication interface which includes a singlechip, an input port, an analog quantity output port, a digital quantity output port, a BACnet communication interface and a Modbus communication interface; the input port, the analog quantity output port, the digital quantity output port, the BACnet communication interface and the Modbus communication interface are connected with the singlechip. The BACnet field controller with the Modbus communication interface is provided with two data protocol interfaces, can provide a base for integrating multi-protocol equipment, and lead a plurality of display terminals based on Modbus to be matched with the Bacnet field controller, which is more convenient and beautiful; compared with the traditional Bacnet human-computer interface equipment, the data bandwidth of a system bus does not need to be consumed, which leads the system to run more quickly and stably. Compared with the traditional Bacnet human-computer interface equipment, the cost of using a colorful touch screen based on Modbus protocol is greatly reduced.
Description
Technical field
The utility model relates to a kind of field controller, particularly has the BACnet field controller of Modbus communication interface.
Background technology
BACnet is the data communication protocol of building automation and Control Network, and it can make the control product of different vendor be integrated in the unified system, and agreement can be carried out equipment such as Heating,Ventilating and Air Conditioning (HVAC), illumination, fire-fighting, gate inhibition and safety precaution integrated.Therefore, meet the field controller of BACnet, be widely used in fields such as building air-conditioner, heat distribution pipe network, toilet, laboratory, operating room, colliery geothermal utilization.Traditional BACnet field controller has only a BACnet communication port, solve on-the-spot man-machine conversation problem, can only use the display terminal based on the BACnet communication.But BACnet is in China starting a little later, lacks cheap on-the-spot display operation terminal on the market, and based on the display terminal kind of BACnet communication seldom, cost an arm and a leg; Because the display terminal based on the BACnet communication is a BACnet node in essence, also can consume BACnet address, communication driving force and data transfer bandwidth etc.
The utility model content
The purpose of this utility model provides a kind of novel BACnet field controller, has the Modbus communication interface, can connect the on-the-spot display terminal of various kinds, solves on-the-spot man-machine conversation problem.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of BACnet field controller with Modbus communication interface, comprise single-chip microcomputer, input port, the analog quantity delivery outlet, digital quantity delivery outlet, BACnet communication interface and Modbus communication interface, the input port, the analog quantity delivery outlet, digital quantity delivery outlet, BACnet communication interface and Modbus communication interface are connected on the single-chip microcomputer.
Described field controller is connected into the Modbus bus by the Modbus communication interface as Modbus slave station (slave).
Connect a toggle switch on the described single-chip microcomputer.Toggle switch is determined the device address of BACnet mstp and Modbus.
The Modbus communications protocol is developed by Modicon company, it is a kind of a kind of versabus agreement that is widely used on PLC or other industrial control unit (ICU)s, its on-the-spot display operation terminal is wide in variety, reasonable price, it is applied in the BACnet field controller, can effectively solve few, the expensive problem of the on-the-spot display terminal kind of BACnet.
But BACnet communication interface downloading control algorithm of the present utility model.Field controller connects the Modbus bus as the Modbus slave station.By toggle switch, be the modbus device address with bacnet mstp map addresses; All bacnet variablees are mapped as the modbus register; With the bacnet data type conversion is the data type that is complementary with the modbus register type.Realized the function of exchanges data and information sharing.
The beneficial effects of the utility model are:
1, field controller of the present utility model has two kinds of data protocol interfaces, for the integrated of various protocols equipment provides the foundation;
2, make diversified display terminal to cooperate with the Bacnet field controller based on the Modbus agreement, convenient, attractive in appearance;
3, compare with traditional Bacnet human interface devices, data bandwidth that need not the consumption systems bus, thus make entire system move fast and stable more
If 4 use the color touch screen based on the Modbus agreement, reduce greatly than traditional Bacnet human interface devices cost.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the fundamental diagram of the utility model embodiment.
Embodiment
As shown in Figure 1, BACnet field controller with Modbus communication interface of the present utility model, comprise single-chip microcomputer 1, input port 2, analog quantity delivery outlet 3, digital quantity delivery outlet 4, BACnet communication interface 5 and Modbus communication interface 6 and toggle switch 7, input port 2, analog quantity delivery outlet 3, digital quantity delivery outlet 4, BACnet communication interface 5 and Modbus communication interface 6 and toggle switch 7 are connected on the single-chip microcomputer.Toggle switch 7 decision BACnet mstp and Modbus device addresses.
Concrete principle of work of the present utility model is seen Fig. 2.
1, the Bacnet mstp address of field controller determines that by toggle switch scope is 0-126, because the Modbus address is since 1, so mapping relations are:
Modbus device address=Bacnet mstp address+1
For example: toggle switch is made as 0, and then Bacnet mstp address is 0, and the Modbus device address is 1.
2, the Bacnet variable is mapped as the corresponded manner of Modbus register
Scale-of-two input (BI) corresponding input state (input status)
Scale-of-two output (BO), the corresponding coil state of binary value (BV) (coil status)
The corresponding input register of analog input (AI) (input register)
Simulation output (AO), the corresponding register (holding register) that keeps of the analogue value (AV)
3, the Bacnet data type conversion is the data type that is complementary with the Modbus register type
AI, AO, AV are 4 byte floating types, and the input register of Modbus and holdingregister are 2 byte registers, therefore, and corresponding 2 the continuous modbus registers of 1 Bacnet analog quantity (AI/AO/AV).For example, AI0=48, then Bacnet4 byte floating number is:
0x00，0x00，0x40，0x42
Corresponding Modbus register
(Input register, 1) is 0x00,0x00,
(Input register, 2) are 0x40,0x42
Above-described embodiment, the utility model embodiment a kind of more preferably just, those skilled in the art are to its common variation of carrying out and replace and all should be included in the protection domain of the present utility model.
Claims (3)
1. BACnet field controller with Modbus communication interface, comprise single-chip microcomputer, input port, the analog quantity delivery outlet, digital quantity delivery outlet and BACnet communication interface, it is characterized in that: field controller also comprises the Modbus communication interface, the input port, the analog quantity delivery outlet, digital quantity delivery outlet, BACnet communication interface and Modbus communication interface are connected on the single-chip microcomputer.
2. the BACnet field controller with Modbus communication interface according to claim 1, it is characterized in that: field controller is connected into the Modbus bus by the Modbus communication interface.
3. the BACnet field controller with Modbus communication interface according to claim 2 is characterized in that: the toggle switch that connects decision BACnet mstp and Modbus device address on the described single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202006654U CN201689338U (en) | 2010-05-24 | 2010-05-24 | BACnet field controller with Modbus communication interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202006654U CN201689338U (en) | 2010-05-24 | 2010-05-24 | BACnet field controller with Modbus communication interface |
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| CN201689338U true CN201689338U (en) | 2010-12-29 |
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| CN2010202006654U Expired - Fee Related CN201689338U (en) | 2010-05-24 | 2010-05-24 | BACnet field controller with Modbus communication interface |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438017A (en) * | 2011-12-14 | 2012-05-02 | 北京联合大学生物化学工程学院 | Routing function-based conversion apparatus of Modbus protocol and BACnet Ethernet protocol and conversion method thereof |
| CN105204421A (en) * | 2015-09-18 | 2015-12-30 | 广州晋宇自动控制设备有限责任公司 | Programmable logic controller based on BACNET protocol and control method thereof |
| CN107222458A (en) * | 2017-04-17 | 2017-09-29 | 珠海格力电器股份有限公司 | Data processing method and system of BACnet protocol stack compatible with Modbus protocol |
| CN109634202A (en) * | 2018-12-14 | 2019-04-16 | 广东工业大学 | A kind of PLC system and method for accessible BACnet building system |
| CN110376408A (en) * | 2019-07-29 | 2019-10-25 | 苏州和欣致远节能科技有限公司 | A kind of ammeter of band BACnet controller function |
| CN113259230A (en) * | 2021-05-12 | 2021-08-13 | 苏州和欣致远节能科技有限公司 | BACnet gateway with multiple Modbus ports and communication method thereof |
-
2010
- 2010-05-24 CN CN2010202006654U patent/CN201689338U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438017A (en) * | 2011-12-14 | 2012-05-02 | 北京联合大学生物化学工程学院 | Routing function-based conversion apparatus of Modbus protocol and BACnet Ethernet protocol and conversion method thereof |
| CN102438017B (en) * | 2011-12-14 | 2014-12-24 | 北京联合大学生物化学工程学院 | Routing function-based conversion apparatus of Modbus protocol and BACnet Ethernet protocol and conversion method thereof |
| CN105204421A (en) * | 2015-09-18 | 2015-12-30 | 广州晋宇自动控制设备有限责任公司 | Programmable logic controller based on BACNET protocol and control method thereof |
| CN107222458A (en) * | 2017-04-17 | 2017-09-29 | 珠海格力电器股份有限公司 | Data processing method and system of BACnet protocol stack compatible with Modbus protocol |
| CN109634202A (en) * | 2018-12-14 | 2019-04-16 | 广东工业大学 | A kind of PLC system and method for accessible BACnet building system |
| CN110376408A (en) * | 2019-07-29 | 2019-10-25 | 苏州和欣致远节能科技有限公司 | A kind of ammeter of band BACnet controller function |
| CN113259230A (en) * | 2021-05-12 | 2021-08-13 | 苏州和欣致远节能科技有限公司 | BACnet gateway with multiple Modbus ports and communication method thereof |
| CN113259230B (en) * | 2021-05-12 | 2022-11-22 | 苏州和欣致远节能科技有限公司 | BACnet gateway with multiple Modbus ports and communication method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing Hexin Yunda Science & Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20130524 |