CN209170402U - A kind of multi-functional demodulator based on Modbus agreement - Google Patents

Abstract

The utility model discloses a kind of multi-functional demodulator based on Modbus agreement, including shell, and the shell is equipped with several communication interfaces；Power module, memory module and the communication module that the enclosure interior is equipped with microcontroller and is electrically connected with the microcontroller；The enclosure interior is additionally provided with WIFI module, and the communication interface includes Ethernet interface, and the communication module includes ethernet communication unit, several communication interfaces for acquire, the communication data of output equipment；The microcontroller for parse, the communication protocol between conversion equipment；The memory module is for storing the communication data；The Ethernet interface is used for connected with network cable, and the ethernet communication unit is for connecting server；The WIFI module is for sharing hot spot.The demodulator of the utility model integrates protocol conversion, Interface Expanding, gateway and hot spot and shares multiple functions, has a good application prospect.

Description

A kind of multi-functional demodulator based on Modbus agreement

Technical field

The utility model belongs to Industry Control and Internet of Things communication control field, specifically a kind of based on Modbus agreement Multi-functional demodulator.

Background technique

Modbus agreement is one of many different agreements of field bus control system, is widely used in Industry Control scene. Modbus agreement supports a variety of electrical apparatus interfaces such as RS-232, RS-422, RS-485 between controller and to pass through by this agreement Crossing between network link controller and other equipment can communicate；But Modbus agreement cannot be assisted with based on TCP/IP The Ethernet of view is directly connected to, and the communication information between equipment and controller cannot remotely be directly passed to server, Ke Huwu The communication information between method remote inquiry equipment and controller.

Existing protocol converter functions of modules is relatively simple, conversion related protocol that can only be simple, if client want by Communication data is acquired, then additionally needs and increase associated gateway equipment, increase the complexity of wiring between equipment；And it is existing Protocol converter do not have share hot spot function, client only have two ways check the communication information or publication control refer to It enables, one is monitor terminal (PLC controller, touch screen or host computer etc.) at the scene, the other is remotely by upper Interconnection plane is checked；Client can not connect hot spot near equipment and check the communication information whenever and wherever possible.

The Chinese patent of Publication No. CN202735801U discloses a kind of Modbus communication concentrator, including shell, if Set the intracorporal central control unit of shell, isolated power supply module, data storage cell, 485 communication units, CAN communication unit and Ethernet communication unit, the communication interface include 485 interfaces, CAN interface and Ethernet interface.By simply configuring slave Address table can realize the data acquisition of slave devices；The patent has acquisition slave devices data and is uploaded by Ethernet To the function of remote server, however its function or relatively simple, do not have communication interface extension and the function of sharing hot spot.

Summary of the invention

The purpose of this utility model is in view of the problems of the existing technology, to provide a kind of more function based on Modbus agreement Energy demodulator, facilitates multimachine to connect, and can carry out protocol conversion, facilitates the connection between distinct device, carries gateway function Can, collected data can be uploaded to server, check data for consumer remote；Facilitate simultaneously different intelligent terminal with Equipment carries out data interaction.

In order to achieve the above purposes, the technical solution adopted by the utility model is:

A kind of multi-functional demodulator based on Modbus agreement, including shell, the shell are equipped with several communication interfaces； The enclosure interior is equipped with microcontroller and the power module being electrically connected with the microcontroller, memory module and communication mould Block；The enclosure interior is additionally provided with WIFI module, and the communication interface includes Ethernet interface, and the communication module includes ether Network Communication unit, the ethernet communication unit are connect with Ethernet interface, WIFI module respectively, the WIFI module and power supply Module electrical connection；Several communication interfaces are used for the communication data of Input/Output Device；The microcontroller for parse, Communication protocol between conversion equipment；The memory module is for storing the communication data；The Ethernet interface is for connecting Cable is connect, the ethernet communication unit is for connecting server；The WIFI module is for sharing hot spot.

Specifically, the communication interface further includes several RS-485 interfaces, and the communication module further includes several RS-485 Communication unit, each RS-485 communication unit is separately connected corresponding RS-485 interface and microcontroller, described several RS-485 interface connects the equipment being in communication with each other by RS-485 bus；

Further, the equipment being in communication with each other includes controlled device and control equipment, and the control equipment includes position PLC controller, touch screen and host computer on site, user can be adopted by PLC controller, touch screen or host computer to check Control of the data and realization collected to controlled device；

Specifically, it is communicated between the demodulator and control equipment using ModbusRTU agreement；The demodulator with It is communicated between controlled device using ModbusRTU agreement or ModbusASCII agreement；

Further, after the demodulator collects the data of controlled device by ModbusASCII agreement, pass through CPU comes out protocol analysis, then the data parsed are sent to control equipment by ModbusRTU agreement.

Specifically, the ethernet communication unit is communicated with server by ModbusTCP agreement；

Specifically, wireless network protocol stack built in the WIFI module and ICP/IP protocol stack；

Further, after demodulator connects network by ethernet communication unit, can be shared by WIFI module wireless Network, the mobile intelligent terminals such as mobile phone near demodulator can check the data in server by connecting WIFI network.

Specifically, several indicator lights are additionally provided on the shell, several indicator lights include power supply indicator, Ethernet Signal lamp and WIFI signal indicator light.The power supply indicator be used to indicate power module whether normal power supply；It is described with Too net signal lamp be used to indicate Ethernet interface whether access network based on ethernet；The WIFI signal indicator light is used to indicate WIFI Whether module normally shares hot spot；It can simplify the operation sequence of troubleshooting by the way that these signal lamps are arranged.

Specifically, the case top and side wall are equipped with thermovent, enclosure interior position corresponding with thermovent It is equipped with radiator, effect is to prevent the excessively high service life for influencing equipment of shell body temperature.

Compared with prior art, the utility model has the beneficial effects that (1) the utility model extends multiple numbers by local According to interface, these data-interfaces carry out data interaction by Modbus agreement and external equipment, facilitate multimachine to connect, while may be used also To carry out protocol conversion, facilitate the data exchange between distinct device；(2) the utility model carries gateway function, passes through ether Network Communication unit connects internet, and collected data can be uploaded to server, user can telnet server check Collected data；(3) the utility model shares hot spot by the way that WIFI module is arranged in demodulator, is located near demodulator The mobile intelligent terminals such as mobile phone can check the data in server by connecting WIFI network.(4) shell of the utility model On be provided with several indicator lights, be used to indicate whether power module, Ethernet interface and WIFI module work normally, thus simplify The operation sequence of troubleshooting.

Detailed description of the invention

Fig. 1 is a kind of multi-functional demodulator connection structure schematic block diagram based on Modbus agreement of the present embodiment；

In figure, 1, shell；2, microcontroller；3, power module；4, memory module；5, WIFI module；6, Ethernet interface； 7, ethernet communication unit；8, server；9, RS-485 interface；10, RS-485 communication unit；11, controlled device；12, PLC is controlled Device processed；13, touch screen；14, host computer；15, mobile intelligent terminal.

Specific embodiment

Below in conjunction with the attached drawing in the utility model, the technical solution of the utility model is clearly and completely retouched It states, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on this Embodiment in utility model, those of ordinary skill in the art under the conditions of not making creative work it is obtained it is all its Its embodiment, fall within the protection scope of the utility model.

As shown in Figure 1, a kind of multi-functional demodulator based on Modbus agreement is present embodiments provided, on the shell 1 Equipped with several communication interfaces；The power supply mould for being equipped with microcontroller 2 inside the shell 1 and being electrically connected with the microcontroller 2 Block 3, memory module 4 and communication module；WIFI module 5 is additionally provided with inside the shell 1, the communication interface includes that Ethernet connects Mouthfuls 6, the communication module includes ethernet communication unit 7, the ethernet communication unit 7 respectively with Ethernet interface 6, WIFI Module 5 connects, and the WIFI module 5 is electrically connected with power module 3；Several communication interfaces are for Input/Output Device Communication data；The microcontroller 2 for parse, the communication protocol between conversion equipment；The memory module 4 is for storing institute State communication data；The Ethernet interface 6 is used for connected with network cable, and the ethernet communication unit 7 is for connecting server 8；Institute WIFI module 5 is stated for sharing hot spot.

Specifically, the communication interface further includes 4 RS-485 interfaces 9, and the communication module further includes 4 RS-485 The RS-485 chip of SN75276 type can be used in communication unit 10, the RS-485 communication unit 10, and each RS-485 is logical Letter unit 10 is separately connected corresponding RS-485 interface 9 and microcontroller 2, and 4 RS-485 interfaces 9 are total by RS-485 Line connects the equipment being in communication with each other；The microcontroller 2 uses AT91SAM9260 chip；

Further, the equipment being in communication with each other includes controlled device 11 and control equipment, and the control equipment includes Positioned at live PLC controller 12, touch screen 13 and host computer 14, user can pass through PLC controller 12, touch screen or upper Machine 14 checks collected data and realizes control to controlled device 11；Wherein, a RS-485 communication interface connection Controlled device 11, the other three RS-485 communication interface are separately connected PLC controller 12, touch screen 13 and host computer 14.

Further, the collected Data expansion of the RS-485 interface 9 is given to the principle of multiple interfaces are as follows: work as RS-485 After interface 9 collects the data of equipment, by CPU internal reproduction serial data, obtain identical data pass through again it is other RS-485 interface 9 exports, and the expanded interface function based on Modbus agreement can be completed.

Specifically, it is communicated between the demodulator and control equipment using ModbusRTU agreement；The demodulator with It is communicated between controlled device 11 using ModbusRTU agreement or ModbusASCII agreement；

Further, after the demodulator collects the data of controlled device 11 by ModbusASCII agreement, pass through CPU comes out protocol analysis, then the data parsed are sent to control equipment by ModbusRTU agreement.

Specifically, the ethernet communication unit 7 is communicated with server 8 by ModbusTCP agreement；

Further, after the demodulator collects the data of controlled device 11 by ModbusASCII agreement, pass through CPU comes out protocol analysis, then the data parsed are uploaded onto the server 8 by ModbusTCP agreement, and user can be long-range Login service device 8 checks data.

Specifically, wireless network protocol IEEE802.11b.g.n protocol stack and ICP/IP protocol built in the WIFI module 5 Stack；

Further, after demodulator connects network by ethernet communication unit 7, nothing can be shared by WIFI module 5 Gauze network is additionally provided with antenna on the demodulator shell 1, and the antenna is electrically connected with WIFI module 5, for enhancing WIFI letter Number；The mobile intelligent terminals such as the mobile phone near demodulator 15 can check the data in server 8 by connecting WIFI network； The WIFI module 5 built in router can be used in the WIFI module 5；W5100 type can be used in the ethernet communication unit 7 RJ45 type network interface can be used in 6 chip of Ethernet interface, the Ethernet interface 6.

Specifically, several indicator lights are additionally provided on the shell 1, several indicator lights include power supply indicator, ether Net signal lamp and WIFI signal indicator light.The power supply indicator be used to indicate power module 3 whether normal power supply, power supply Bright 3 normal power supply of expression power module of indicator light, power supply indicator, which goes out, indicates 3 power supply trouble of power module；The Ethernet letter Number indicator light be used to indicate Ethernet interface 6 whether access network based on ethernet, the bright expression equipment of ethernet signal indicator light normally accesses Ethernet, ethernet signal indicator light off indicate the non-access network based on ethernet of equipment；The WIFI signal indicator light is used to indicate WIFI Whether module 5 normally shares hot spot, and bright the expressions WIFI module 5 of WIFI signal lamp shares hot spot successfully, and WIFI signal lamp goes out expression WIFI module 5 shares hot spot failure；It can simplify the operation sequence of troubleshooting by the way that these signal lamps are arranged.

Specifically, 1 top of shell and side wall are equipped with thermovent, position corresponding with thermovent inside the shell 1 It sets and is equipped with radiator, effect is to prevent the excessively high service life for influencing equipment of temperature in shell 1.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (8)

1. a kind of multi-functional demodulator based on Modbus agreement, including shell, the shell is equipped with several communication interfaces；Institute Enclosure interior is stated equipped with microcontroller and the power module, memory module and the communication module that are electrically connected with the microcontroller； It is characterized in that, the enclosure interior is additionally provided with WIFI module, the communication interface includes Ethernet interface, the communication module Including ethernet communication unit, the ethernet communication unit is connect with Ethernet interface, WIFI module respectively, the WIFI mould Block is electrically connected with power module；Several communication interfaces are used for the communication data of Input/Output Device；The microcontroller is used Communication protocol between parsing, conversion equipment；The memory module is for storing the communication data；The Ethernet interface For connected with network cable, the ethernet communication unit is for connecting server；The WIFI module is for sharing hot spot.

2. a kind of multi-functional demodulator based on Modbus agreement according to claim 1, which is characterized in that the communication Interface further includes several RS-485 interfaces, and the communication module further includes several RS-485 communication units, each RS-485 Communication unit is separately connected corresponding RS-485 interface and microcontroller, and several RS-485 interfaces are connected by RS-485 bus Connect the equipment being in communication with each other.

3. a kind of multi-functional demodulator based on Modbus agreement according to claim 2, which is characterized in that described mutual The equipment of communication include controlled device and control equipment, the control equipment include be located at scene PLC controller, touch screen and on Position machine.

4. a kind of multi-functional demodulator based on Modbus agreement according to claim 3, which is characterized in that the demodulation It is communicated between device and control equipment using ModbusRTU agreement；It is used between the demodulator and controlled device ModbusRTU agreement or ModbusASCII agreement are communicated.

5. a kind of multi-functional demodulator based on Modbus agreement according to claim 1, which is characterized in that the ether Network Communication unit is communicated with server by ModbusTCP agreement.

6. a kind of multi-functional demodulator based on Modbus agreement according to claim 1, which is characterized in that the WIFI Wireless network protocol stack built in module and ICP/IP protocol stack.

7. a kind of multi-functional demodulator based on Modbus agreement according to claim 1, which is characterized in that the shell On be additionally provided with several indicator lights, several indicator lights include that power supply indicator, ethernet signal indicator light and WIFI signal refer to Show lamp.

8. a kind of multi-functional demodulator based on Modbus agreement according to claim 1, which is characterized in that the shell Top and side wall are equipped with thermovent, and enclosure interior position corresponding with thermovent is equipped with radiator.