CN204272173U - A Gateway for Modbus RTU/ASCII and Modbus TCP Communication Protocol Conversion - Google Patents
A Gateway for Modbus RTU/ASCII and Modbus TCP Communication Protocol Conversion Download PDFInfo
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- CN204272173U CN204272173U CN201420808389.8U CN201420808389U CN204272173U CN 204272173 U CN204272173 U CN 204272173U CN 201420808389 U CN201420808389 U CN 201420808389U CN 204272173 U CN204272173 U CN 204272173U
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 9
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
Description
技术领域 technical field
本实用新型涉及一种网关，尤其涉及一种Modbus RTU/ASCII和Modbus TCP通信协议转换的网关，属于工业自动化控制领域。 The utility model relates to a gateway, in particular to a gateway for converting Modbus RTU/ASCII and Modbus TCP communication protocols, which belongs to the field of industrial automation control.
背景技术 Background technique
Modbus RTU/ASCII协议是一种广泛应用于工业控制现场的串行通信协议，随着以太网应用的推广，将串口通信转换为以太网通信的需求也逐渐增大。Modbus TCP通信协议是一种运行于TCP/IP网络上的Modbus通信协议，多运行于以太网上，Modbus RTU/ASCII和Modbus TCP通信协议之间的转换是需要通过网关来实现的，目前的网关耗费的成本较大。 The Modbus RTU/ASCII protocol is a serial communication protocol widely used in industrial control sites. With the promotion of Ethernet applications, the demand for converting serial communication to Ethernet communication is gradually increasing. The Modbus TCP communication protocol is a Modbus communication protocol that runs on the TCP/IP network, and mostly runs on the Ethernet. The conversion between Modbus RTU/ASCII and Modbus TCP communication protocols needs to be realized through a gateway. The current gateway consumes The cost is higher.
实用新型内容 Utility model content
本实用新型解决上述技术问题，提供一种Modbus RTU/ASCII和Modbus TCP通信协议转换的网关。 The utility model solves the above-mentioned technical problems, and provides a gateway for the conversion of Modbus RTU/ASCII and Modbus TCP communication protocols.
本实用新型为实现上述技术目的，所采用的技术方案为：一种Modbus RTU/ASCII和Modbus TCP通信协议转换的网关，包括通过RS-485接口电路相连接的OpenWrt兼容路由器主板和RS-485收发控制器，OpenWrt兼容路由器主板上设有Modbus RTU/ASCII通信协议控制器、Modbus TCP通信协议控制器和接口，所述RS-485收发控制器包括向RS-485收发控制器供电的电源部分和RS-485收发部分，RS-485收发控制器内部连接OpenWrt兼容路由器主板的UART接口，外部连接RS-485总线。 In order to realize the above-mentioned technical purpose, the utility model adopts the technical scheme as follows: a gateway for the conversion of Modbus RTU/ASCII and Modbus TCP communication protocols, including an OpenWrt compatible router main board connected by an RS-485 interface circuit and an RS-485 transceiver Controller, OpenWrt compatible router motherboard is equipped with Modbus RTU/ASCII communication protocol controller, Modbus TCP communication protocol controller and interface, and the RS-485 transceiver controller includes a power supply part and RS -485 transceiver part, the RS-485 transceiver controller is internally connected to the UART interface of the OpenWrt compatible router motherboard, and externally connected to the RS-485 bus.
所述接口包括RJ45以太网接口、WiFi接口和USB接口。 The interfaces include RJ45 Ethernet interface, WiFi interface and USB interface.
本实用新型的有益效果是：网关硬件基于成熟运行的路由器主板，只需另外设计RS-485收发控制外围电路和电源电路，开发成本比较低。 The beneficial effect of the utility model is that: the gateway hardware is based on the router main board with mature operation, only need to additionally design the RS-485 transceiver control peripheral circuit and the power supply circuit, and the development cost is relatively low.
附图说明 Description of drawings
图1是本实用新型的连接示意图。 Fig. 1 is the connection diagram of the utility model.
具体实施方式 Detailed ways
下面结合附图对本实用新型作详细的说明。 Below in conjunction with accompanying drawing, the utility model is described in detail.
如图所示，一种Modbus RTU/ASCII和Modbus TCP通信协议转换的网关，包括通过RS-485接口电路相连接的OpenWrt兼容路由器主板和RS-485收发控制器，OpenWrt兼容路由器主板上设有Modbus RTU/ASCII通信协议控制器、Modbus TCP通信协议控制器和接口。接口包括RJ45以太网接口、WiFi接口和USB接口。RS-485收发控制器包括向RS-485收发控制器供电的电源部分和RS-485收发部分，RS-485收发控制器内部连接OpenWrt兼容路由器主板的UART接口，外部连接RS-485总线。 As shown in the figure, a gateway for the conversion of Modbus RTU/ASCII and Modbus TCP communication protocols, including an OpenWrt compatible router main board and an RS-485 transceiver controller connected through an RS-485 interface circuit, the OpenWrt compatible router main board is equipped with a Modbus RTU/ASCII communication protocol controller, Modbus TCP communication protocol controller and interface. Interfaces include RJ45 Ethernet interface, WiFi interface and USB interface. The RS-485 transceiver controller includes a power supply part that supplies power to the RS-485 transceiver controller and an RS-485 transceiver part. The RS-485 transceiver controller is internally connected to the UART interface of the OpenWrt compatible router motherboard, and externally connected to the RS-485 bus.
RS-485收发控制器将电路的信号收发端子、电源端子通过导线焊接到OpenWrt兼容路由器主板的UART接口和电源接口，设计网关外壳，对外暴露OpenWrt兼容路由器主板的RJ45接口、USB接口，RS-485收发控制器包括电源输入接线端子、RS-485总线接线端子，用于对内连接RS-485收发控制器的RS-485收发部分和电源输入，对外连接外部的RS-485总线及电源输入。 The RS-485 transceiver controller welds the signal transceiver terminal and power terminal of the circuit to the UART interface and power interface of the OpenWrt compatible router main board through wires, designs the gateway shell, and exposes the RJ45 interface, USB interface and RS-485 of the OpenWrt compatible router main board. The transceiver controller includes a power input terminal and an RS-485 bus terminal, which are used to internally connect the RS-485 transceiver part of the RS-485 transceiver controller and power input, and externally connect to the external RS-485 bus and power input.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420808389.8U CN204272173U (en) | 2014-12-19 | 2014-12-19 | A Gateway for Modbus RTU/ASCII and Modbus TCP Communication Protocol Conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420808389.8U CN204272173U (en) | 2014-12-19 | 2014-12-19 | A Gateway for Modbus RTU/ASCII and Modbus TCP Communication Protocol Conversion |
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| Publication Number | Publication Date |
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| CN204272173U true CN204272173U (en) | 2015-04-15 |
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| CN201420808389.8U Expired - Lifetime CN204272173U (en) | 2014-12-19 | 2014-12-19 | A Gateway for Modbus RTU/ASCII and Modbus TCP Communication Protocol Conversion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506516A (en) * | 2014-12-19 | 2015-04-08 | 平顶山中选自控系统有限公司 | 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 |
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2014
- 2014-12-19 CN CN201420808389.8U patent/CN204272173U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506516A (en) * | 2014-12-19 | 2015-04-08 | 平顶山中选自控系统有限公司 | 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 |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150415 |