Industrial Ethernet switch integrating PRP/HSR redundant protocols

A redundant protocol, Ethernet technology, applied in the field of industrial control, to achieve the effect of measuring the total dwell delay

Active Publication Date: 2016-12-07
NARI TECH CO LTD +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is that the existing PRP / HSR redundancy protocols are all implemented at the data link layer, resulting in poor network reliability and inconvenient use

Method used

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  • Industrial Ethernet switch integrating PRP/HSR redundant protocols
  • Industrial Ethernet switch integrating PRP/HSR redundant protocols

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Such as figure 1 Shown, the industrial Ethernet switch of the integrated PRP / HSR redundancy protocol of the present invention is characterized in that comprising programmable logic chip FPGA, multi-port Ethernet switching chip Switch and several slices of Ethernet physical layer interface chip PHY 0 -PHY n , the Ethernet physical layer interface chip PHY 0 -PHY n Connect with programmable logic chip FPGA by network interface respectively, described programmable logic chip FPGA is connected with multi-port Ethernet switch chip Switch by network interface, be provided with channel matrix module, PRP / HSR module, forwarding module,

[0023] The channel matrix module is used for PRP / HSR module, forwarding module and Ethernet physical layer interface chip PHY 0 -PHY n Establish a communication bridge between the Ethernet physical layer interface chip PHY 0 -P...

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PUM

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Abstract

The invention discloses an industrial Ethernet switch integrating PRP / HSR redundant protocols. The industrial Ethernet switch comprises a programmable logic chip FPGA, a multi-interface Ethernet switch chip Switch and a plurality of Ethernet physical layer interface chips PHY0-PHYn. The Ethernet physical layer interface chips PHY0-PHYn are connected with the programmable logic chip FPGA through network interfaces respectively, and the programmable logic chip FPGA is connected with the multi-interface Ethernet switch chip Switch through a network interface. According to the industrial Ethernet switch integrating PRP / HSR redundant protocols, the FPGA is used as a carrier to achieve a PRP / HSR module, the Switch chip is used in cooperation, and the PRP / HSR protocols are supported on the basis that the common switch function is achieved; besides, a message lingering delay measuring function is achieved, and good application prospects are achieved.

Description

technical field [0001] The invention relates to the technical field of industrial control, in particular to an industrial Ethernet switch integrating PRP / HSR redundancy protocol. Background technique [0002] The IEC62439-3 specification defines two protocols, PRP (Parallel Redundancy Protocol) and HSR (High Reliability Seamless Redundancy), in order to improve the reliability of industrial Ethernet, PRP (Parallel Redundancy Protocol) and HSR (High Reliability Seamless Redundancy) The basic idea is to improve reliability through dual-channel redundancy, and the network terminal selects the optimal one-way data according to the discarding algorithm to complete real-time, reliable and seamless switching. Currently, the PRP / HSR redundancy protocols are all implemented at the data link layer, and the underlying physical layer is no different from ordinary networks, resulting in poor network reliability and inconvenient use. [0003] However, as industrial control applications h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/933H04L12/935H04L49/111
CPCH04L49/10H04L49/15H04L49/30
Inventor 周华良杨志宏沈健吴海王凯甘云华
Owner NARI TECH CO LTD
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