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A data link layer circuit of industrial real-time Ethernet and its data exchange method

A technology of data link layer and Ethernet, which is applied in the direction of data exchange through path configuration, data exchange network, bus network, etc., and can solve the problem of difficulty in improving the integration of non-owner systems

Active Publication Date: 2018-11-23
中工科安科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And in the actual product development, due to its closed source code, it is difficult to improve the integration of non-owner systems, and it is often necessary to integrate an ASIC developed by the owner in one's own products

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  • A data link layer circuit of industrial real-time Ethernet and its data exchange method

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] The data link layer circuit of the industrial real-time Ethernet of the present invention is applied in the bus-type driver port, and the bus-type driver port is upwardly connected to the motion control core of the master station through the shared RAM or AHB; downwardly through the general field bus, real-time Ethernet or The internal inter-device bus is connected to the servo drive, and the servo drive is connected through the internal inter-device bus. The bus-type drive port is not limited to the internal inter-device bus to connect the servo drive. It is suitable for any general field bu...

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Abstract

The invention discloses a data link layer circuit of an industrial real-time Ethernet and a data exchange method thereof. The data link layer circuit includes 4 to 6 MAC modules, 4 to 6 media access local memories, channel memory switching switches, media access shared memory, control registers, address decoders, and port controllers. Each MAC module connects to a medium to access local memory. The media access shared memory selectively connects one of the media access local memory through the channel memory switch. The input of the address decoder is connected to the control registers and these media access local memory, and the output of the address decoder is connected to the media access shared memory. The control register is connected with these media access local memory and media access shared memory. The port controller is connected with each MAC module, channel memory switching switch, control register and address decoder. The invention also discloses the data exchange method of the data link layer circuit.

Description

technical field [0001] The invention relates to a data link layer circuit and a data exchange method thereof, in particular to a data link layer circuit of an industrial real-time Ethernet and a data exchange method thereof. Background technique [0002] It has become more and more common for servo drives to communicate with controllers using industrial Ethernet technology, so that a communication rate of 100Mbit / s can be obtained. For example, Siemens' Sinamics S120 servo drive (motor drive module) and Sinumerik NCU730.3 controller use the dedicated industrial Ethernet communication technology between Drive Cliq devices, making the controller and servo drive, servo drive and servo drive The mutual communication rate reaches 100Mbit / s, which ensures the real-time and security of communication. [0003] This kind of industrial real-time Ethernet used in the field of CNC or motion control, its network architecture no longer needs the 7-layer model of OSI, but only needs layer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04L29/06H04L12/40H04L12/935H04L12/741H04L45/74H04L49/111
Inventor 文长明文可柴桂锋储成君刘新山任士龙卢昌虎
Owner 中工科安科技有限公司