Device for switching from ETHERNET/IP (Internet Protocol) industrial Ethernet to Profibus-DP

A field bus, conversion device technology, applied in the direction of bus network, network connection, data exchange through path configuration, etc., can solve the problems of high cost, complex hardware, and no solution for Profibus-DP protocol stack, etc. Efficiency, the effect of simple hardware structure

Active Publication Date: 2013-11-20
BEIJING HUADIAN TIANREN ELECTRIC POWER CONTROL TECH
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  • Abstract
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Problems solved by technology

[0006] Most of the existing Ethernet/IP and Profibus-DP conversion devices use the combination of Profibus-DP slave station and Ethernet/IP master station. This kind of device can only connect the Ethernet/IP slave station equipment to the Profibus-DP network. middle
However, the combination of the Ethernet/IP slave station and the Profibus-DP master station, although the Profibus-DP devic

Method used

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  • Device for switching from ETHERNET/IP (Internet Protocol) industrial Ethernet to Profibus-DP
  • Device for switching from ETHERNET/IP (Internet Protocol) industrial Ethernet to Profibus-DP
  • Device for switching from ETHERNET/IP (Internet Protocol) industrial Ethernet to Profibus-DP

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Embodiment Construction

[0021] The technical solution of the utility model will be described in further detail below in combination with preferred examples according to the accompanying drawings in the description.

[0022] Such as figure 1 As shown, a conversion device from Ethernet / IP industrial Ethernet to Profibus-DP field bus includes a main control CPU, a Profibus-DP interface chip, an Ethernet interface chip PHY and a corresponding Profibus network and an Ethernet network. The main control CPU is STM32F407VGT6 with Cortex-M4 framework of ARM Company, and has a high-speed UART port; the Ethernet interface chip PHY adopts DP83848CVV of NS Company; Type RS485 transceiver chip ADM2486, the chip can not only realize the Profibus-DP physical layer function, but also integrates magnetic isolation in the chip; the main control chip CPU is connected to the transceiver chip ADM2486 through the UART port, and the transceiver chip ADM2486 is responsible for the UART port The level signal is converted to ...

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Abstract

The invention discloses a device for switching from ETHERNET/IP (Internet Protocol) industrial Ethernet to Profibus-DP. A hardware part mainly comprises a main control chip with a high-speed UART (Universal Asynchronous Receiver/Transmitter) port, an Ethernet physical layer transceiver and a Profibus-DP physical layer receiving-transmitting chip. On the basis of an ARM (Advanced RISC Machine) and a pure software Profibus-DP protocol stack, Profibus-DP equipment is accessed into an ETHERNET/IP network by combining an ETHERNET/IP slave station with a Profibus-DP main station. According to the device, a Profibus-DP main station protocol is realized by adopting the software protocol stack and the physical layer transceiver, so that the hardware structure is simple, and low cost is realized; and an embedded real-time operating system is taken as an operating system platform, so that the efficiency of protocol conversion is increased greatly, and the requirement of high instantaneity of the Profibus-DP and the industrial Ethernet can be well met.

Description

technical field [0001] The invention belongs to the technical field of industrial automation, relates to a conversion device from ETHERNET / IP industrial Ethernet to Profibus-DP field bus, in particular to a conversion device based on ARM platform and pure software Profibus-DP protocol stack from ETHERNET / IP industrial Ethernet to Profibus-DP field bus conversion device. Background technique [0002] The industrial measurement and control system is mainly used to complete functions such as data collection, processing, and real-time monitoring of remote on-site points. The application of fieldbus technology, industrial Ethernet technology, etc. can realize the networking of the measurement and control system and improve the performance and openness of the system. Therefore, in the specific application of industrial control systems, there is often a need for protocol conversion from fieldbus to industrial Ethernet. . [0003] Among the various existing fieldbus standards, PRO...

Claims

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Application Information

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IPC IPC(8): H04L12/66H04L12/40
Inventor 蒋禾青黄振江张雁刘晖邵魏龙张川
Owner BEIJING HUADIAN TIANREN ELECTRIC POWER CONTROL TECH
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